/*
Theme Name: PRBLEM Core
Theme URI: https://prblem.com/
Author: PRBLEM
Description: Retro-compact technical solutions directory with a responsive dark sidebar, classic typography and searchable documentation.
Version: 1.7.57
Requires at least: 6.4
Requires PHP: 7.4
Text Domain: prblem-core
License: GPL-2.0-or-later
*/
:root{--bg:#f8fafc;--surface:#fff;--surface-soft:#f3f6fb;--surface-muted:#eef2f8;--text:#101a32;--muted:#65718a;--border:#e1e8f3;--blue:#2355f4;--blue-soft:#edf3ff;--purple-soft:#f2eafa;--green:#07934c;--green-soft:#e8faef;--warning:#b97c00;--warning-soft:#fff7dc;--danger:#c83a45;--danger-soft:#fff0f2;--shadow:0 8px 30px rgba(20,41,80,.035);--font:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;--headfont:Oxanium,Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Consolas,monospace}
html[data-mode=dark]{color-scheme:dark;--bg:#10151f;--surface:#171e2b;--surface-soft:#202b3b;--surface-muted:#253248;--text:#eaf1fc;--muted:#a4b2ca;--border:#354359;--blue:#82a5ff;--blue-soft:#21385a;--purple-soft:#342744;--green:#78e5a2;--green-soft:#15352a;--warning:#ffd071;--warning-soft:#3c3120;--danger:#ffa2ad;--danger-soft:#3b242d;--shadow:0 8px 32px rgba(0,0,0,.10)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.6 var(--font);-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{color:var(--blue)}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit}img,svg{max-width:100%}img{height:auto}h1,h2,h3,h4{line-height:1.26;letter-spacing:-.026em}h1,h2,h3,p{margin-top:0}hr{border:0;border-top:1px solid var(--border);margin:20px 0}input,textarea{color:var(--text)}:focus-visible{outline:3px solid #7ba7fc;outline-offset:2px}.screen-reader-text,.prblem-skip{position:absolute!important;width:1px!important;height:1px!important;margin:-1px!important;overflow:hidden!important;clip:rect(0 0 0 0)!important;white-space:nowrap!important}.prblem-skip:focus{width:auto!important;height:auto!important;clip:auto!important;padding:12px!important;background:var(--surface)!important;z-index:999!important}.prblem-svg{vertical-align:middle;flex:0 0 auto}.prblem-muted{color:var(--muted);font-size:13px}
/* Header */
.prblem-header{position:sticky;top:0;background:color-mix(in srgb,var(--surface) 95%,transparent);border-bottom:1px solid var(--border);z-index:45;backdrop-filter:blur(14px)}.admin-bar .prblem-header{top:32px}.prblem-header-inner{max-width:1540px;min-height:72px;margin:auto;padding:0 26px;display:flex;align-items:center;gap:28px}.prblem-brand{display:inline-flex;align-items:center;gap:14px;white-space:nowrap;font-family:var(--headfont);font-size:23px;font-weight:850;letter-spacing:-.03em}.prblem-brand:hover{color:var(--text)}.prblem-brandmark{display:grid;place-items:center;width:43px;height:43px;border-radius:10px;background:linear-gradient(135deg,#1c75ff,#2742ef);color:#fff;font:800 21px/1 var(--font);letter-spacing:-.07em}.prblem-header-search{position:relative;flex:1;display:flex;align-items:center;gap:10px;max-width:560px;margin:0 auto;padding:0 13px;height:42px;border:1px solid #d7e1f2;border-radius:14px;background:var(--surface-soft);box-shadow:inset 0 1px 2px rgba(8,27,66,.025)}.prblem-header-search input{width:100%;border:0;background:transparent;outline:none;font-size:13px;min-width:0}.prblem-header-search .prblem-svg{color:#5272ac;width:20px}.prblem-header-search kbd{white-space:nowrap;border:1px solid var(--border);color:var(--muted);border-radius:7px;padding:2px 5px;font:11px var(--mono)}.prblem-header-nav{display:flex;align-items:center;gap:19px;margin-left:auto;white-space:nowrap}.prblem-header-nav a{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600}.prblem-header-nav .prblem-svg{width:17px;color:#183c94}.prblem-mode-toggle,.prblem-menu-toggle{display:grid;place-items:center;border:0;border-radius:50%;width:38px;height:38px;background:var(--surface-muted)}.prblem-mode-toggle:hover,.prblem-menu-toggle:hover{background:var(--blue-soft)}.prblem-menu-toggle{display:none}.prblem-mobile-menu{display:none}.prblem-suggest{display:none;position:absolute;top:calc(100% + 7px);left:0;right:0;z-index:60;box-shadow:0 14px 30px rgba(17,30,58,.12);border:1px solid var(--border);background:var(--surface);padding:6px;border-radius:14px;max-height:340px;overflow:auto}.prblem-suggest.is-open{display:block}.prblem-suggest a{display:flex;align-items:center;gap:10px;padding:10px 11px;border-radius:8px;font-size:13px}.prblem-suggest a:hover,.prblem-suggest a:focus{background:var(--surface-soft)}.prblem-suggest small{color:var(--muted);font-size:10px;margin-left:auto}
/* Home */
.prblem-home-wrap,.prblem-list-wrap{width:min(100% - 48px,1220px);margin:0 auto}.prblem-home-hero{background:linear-gradient(180deg,var(--surface),var(--bg));border-bottom:1px solid var(--border);padding:98px 24px 90px;text-align:center}.prblem-home-hero-inner{max-width:860px;margin:auto}.prblem-eyebrow{color:var(--blue);font-size:11px;font-weight:750;letter-spacing:.13em;text-transform:uppercase}.prblem-home-hero h1{font-family:var(--headfont);font-size:clamp(32px,4.1vw,54px);line-height:1.12;margin:16px 0 16px;font-weight:850;letter-spacing:-.045em}.prblem-home-hero p{color:var(--muted);font-size:16px;margin:0 0 28px}.prblem-search-hero{display:flex;position:relative;align-items:center;gap:13px;background:var(--surface);border:1px solid var(--border);border-radius:19px;box-shadow:0 12px 35px rgba(27,70,141,.055);padding:9px 10px 9px 18px;width:100%;max-width:790px;margin:0 auto}.prblem-search-hero .prblem-svg{color:#5a739e}.prblem-search-hero input{outline:0;border:0;background:transparent;flex:1;min-width:0;font-size:14px}.prblem-search-hero button{background:var(--blue);border:0;color:#fff;font-weight:750;border-radius:12px;padding:12px 20px;white-space:nowrap}.prblem-popular{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;margin-top:20px;color:var(--muted);font-size:13px}.prblem-popular a{border:1px solid var(--border);background:var(--surface);padding:4px 13px;border-radius:100px;color:var(--text)}.prblem-home-section{padding:60px 0 10px;scroll-margin-top:95px}.prblem-section-head{display:flex;align-items:end;justify-content:space-between;gap:14px;margin-bottom:23px}.prblem-section-head h2{font-family:var(--headfont);font-size:27px;letter-spacing:-.025em;margin:4px 0}.prblem-section-head p{color:var(--muted);margin:0;font-size:14px}.prblem-section-head>a{color:var(--blue);font-weight:700;font-size:13px}.prblem-counter{background:var(--blue-soft);color:var(--blue);padding:3px 8px;border-radius:20px;font-size:13px;vertical-align:middle}.prblem-tools-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:10px}.prblem-tool-card{min-height:55px;border:1px solid var(--border);border-radius:10px;background:var(--surface);display:flex;gap:11px;align-items:center;padding:10px 12px;font-size:13px;font-weight:650;transition:border-color .15s,background .15s,transform .15s}.prblem-tool-card:hover{border-color:#8aabfa;background:var(--blue-soft);transform:translateY(-1px)}.prblem-tool-card span{flex:1;min-width:0}.prblem-tool-card img,.prblem-tool-card>.prblem-svg{width:24px;height:24px;object-fit:contain;flex-shrink:0}.prblem-tool-card b{color:#8290aa;font-size:19px;font-weight:400}.prblem-category-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.prblem-category-card{display:flex;align-items:center;gap:16px;border:1px solid var(--border);background:var(--surface);border-radius:12px;padding:20px}.prblem-category-symbol{width:44px;height:44px;display:grid;place-items:center;background:var(--surface-soft);border-radius:12px;flex:0 0 auto}.prblem-category-symbol img,.prblem-category-symbol .prblem-svg{width:27px;height:27px;object-fit:contain}.prblem-category-card>span:nth-child(2){flex:1}.prblem-category-card strong{display:block;font-size:15px}.prblem-category-card small{display:block;font-size:12px;color:var(--muted);margin-top:3px}.prblem-category-card b{color:var(--muted)}.prblem-guides-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:15px}.prblem-guide-card{background:var(--surface);border:1px solid var(--border);border-radius:13px;padding:24px}.prblem-guide-card h3,.prblem-guide-card h2{font-size:18px;margin:10px 0}.prblem-guide-card p{color:var(--muted);font-size:13px}.prblem-guide-label{font-size:10px;letter-spacing:.08em;color:var(--blue);font-weight:800;text-transform:uppercase}.prblem-readmore{font-weight:750;color:var(--blue);font-size:12px}.prblem-empty{grid-column:1/-1;padding:28px;border:1px dashed var(--border);border-radius:12px;color:var(--muted);background:var(--surface)}.prblem-empty strong{color:var(--text)}.prblem-list-wrap{padding-top:55px;padding-bottom:100px;min-height:70vh}.prblem-list-head{margin-bottom:35px}.prblem-list-head h1{font-family:var(--headfont);font-size:36px;margin:5px 0 25px}.prblem-search-subhead{font-size:20px;margin:30px 0 14px}.prblem-regular-page{width:min(850px,calc(100% - 40px));margin:50px auto 100px;background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:35px}
/* Documentation 3-column */
.prblem-docshell{width:min(100% - 44px,1500px);margin:18px auto 80px;display:grid;grid-template-columns:minmax(215px,270px) minmax(0,1fr) minmax(210px,270px);gap:20px;align-items:start}.prblem-leftsidebar,.prblem-rightsidebar{min-width:0;position:sticky;top:90px;max-height:calc(100vh - 100px);overflow:auto;scrollbar-width:thin}.admin-bar .prblem-leftsidebar,.admin-bar .prblem-rightsidebar{top:122px}.prblem-panel{background:var(--surface);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:14px;padding:21px;margin-bottom:16px}.prblem-panel h2{font-size:13px;font-weight:800;letter-spacing:.008em;margin:0 0 17px}.prblem-panel h3{font-size:14px;margin:8px 0}.prblem-panel p{font-size:12px;color:var(--muted)}.prblem-panel hr{margin:20px 0}.prblem-aside-search{border:1px solid var(--border);background:var(--surface-soft);border-radius:9px;display:flex;align-items:center;gap:8px;padding:9px}.prblem-aside-search input{border:0;outline:0;background:transparent;font-size:12px;min-width:0;width:100%}.prblem-aside-search svg{width:16px;color:var(--muted)}.prblem-aside-categories{display:grid;gap:6px}.prblem-aside-categories a{display:flex;align-items:center;gap:10px;padding:10px 9px;border-radius:9px;font-size:13px;font-weight:650}.prblem-aside-categories a:hover,.prblem-aside-categories a.is-active{background:var(--blue-soft);color:var(--blue)}.prblem-aside-categories a img{width:21px;height:21px;object-fit:contain}.prblem-aside-categories>a>span{flex:1}.prblem-aside-categories>a>.prblem-svg{width:16px;height:16px}.prblem-aside-subtitle{font-size:11px;letter-spacing:.04em;font-weight:800;color:var(--muted);margin-bottom:10px}.prblem-sidebar-related{display:grid;gap:3px}.prblem-sidebar-related a,.prblem-sidebar-related>div{padding:9px 10px;font-size:12px;border-radius:7px;line-height:1.4}.prblem-sidebar-related a:hover,.prblem-sidebar-related>.is-current{background:var(--blue-soft);color:var(--blue);font-weight:650}.prblem-sidebar-cta{padding:20px 13px 14px;border:1px solid var(--border);border-radius:11px;text-align:center;background:var(--surface-soft)}.prblem-sidebar-cta>.prblem-svg{color:var(--blue);width:34px;height:34px}.prblem-sidebar-cta h3{margin:5px 0}.prblem-sidebar-cta a{display:block;padding:10px;margin-top:15px;color:white;font-weight:750;font-size:12px;border-radius:9px;background:var(--blue)}
.prblem-article-main{min-width:0}.prblem-article{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:clamp(18px,2.3vw,34px);box-shadow:var(--shadow)}.prblem-article-topline{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:32px}.prblem-breadcrumbs{display:flex;gap:9px;flex-wrap:wrap;font-size:12px;color:var(--muted)}.prblem-breadcrumbs a{color:var(--muted)}.prblem-breadcrumbs a:hover{color:var(--blue)}.prblem-status{display:inline-flex;gap:5px;align-items:center;white-space:nowrap;font-weight:800;font-size:11px;border-radius:100px;padding:4px 10px}.prblem-status .prblem-svg{width:14px;height:14px}.prblem-status--verified{background:var(--green-soft);color:var(--green);border:1px solid color-mix(in srgb,var(--green) 20%,transparent)}.prblem-status--updated{background:var(--blue-soft);color:var(--blue)}.prblem-status--experimental{background:var(--warning-soft);color:var(--warning)}.prblem-status--archived{background:var(--surface-muted);color:var(--muted)}.prblem-article>h1{font-family:var(--headfont);font-size:clamp(28px,3vw,37px);font-weight:850;line-height:1.17;margin:22px 0 14px;letter-spacing:-.04em}.prblem-article-deck{font-size:16px;line-height:1.58;color:var(--muted);margin-bottom:18px}.prblem-article-tags{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:18px}.prblem-chip{border-radius:100px;padding:5px 11px;font-size:12px;font-weight:700}.prblem-chip--blue{background:var(--blue-soft);color:var(--blue)}.prblem-chip--purple{background:var(--purple-soft);color:#8542c0}html[data-mode=dark] .prblem-chip--purple{color:#d2b1ff}.prblem-inline-meta{display:inline-flex;gap:5px;align-items:center;font-size:12px;color:var(--muted)}.prblem-inline-meta svg{width:15px}.prblem-article-byline{display:flex;align-items:center;gap:20px;flex-wrap:wrap;color:var(--muted);font-size:12px;margin-bottom:20px}.prblem-article-byline span{display:inline-flex;gap:5px;align-items:center}.prblem-article-byline svg{width:16px;height:16px}.prblem-print{display:inline-flex;align-items:center;gap:6px;background:transparent;border:0;color:var(--muted);padding:0;font-size:12px}.prblem-quick-answer{border:1px solid #d9e6ff;background:linear-gradient(125deg,var(--blue-soft),var(--surface-soft));border-radius:11px;padding:21px;display:flex;gap:15px;margin:18px 0}.prblem-quick-icon{color:var(--blue);flex:0 0 auto}.prblem-quick-icon svg{width:24px;height:24px}.prblem-quick-answer h2{font-size:17px;color:var(--blue);margin:0 0 8px}.prblem-quick-answer p{margin:0;font-size:14px}.prblem-article-body{font-size:14px;line-height:1.72;overflow-wrap:anywhere}.prblem-article-body h2{font-family:var(--headfont);font-size:24px;line-height:1.3;margin:34px 0 12px;scroll-margin-top:105px}.prblem-article-body h3{font-size:18px;margin:23px 0 11px;scroll-margin-top:105px}.prblem-article-body p{margin:0 0 18px}.prblem-article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px}.prblem-article-body img{max-width:100%;height:auto}.prblem-article-body>ol,.prblem-article-body>ul{padding-left:24px}.prblem-article-body code:not(.prblem-code-line code){font:12px/1.6 var(--mono);background:var(--surface-soft);border-radius:4px;padding:2px 4px}.prblem-method-tabs{display:flex;background:var(--surface-muted);width:fit-content;border-radius:100px;padding:3px;gap:2px;margin:15px 0 21px}.prblem-method-tabs button{border:0;background:none;padding:7px 23px;border-radius:100px;font-size:13px;font-weight:700}.prblem-method-tabs button.is-active{background:var(--blue);color:#fff}.prblem-code-box{border:1px solid var(--border);border-radius:11px;overflow:hidden;margin:18px 0;min-width:0}.prblem-code-head{display:flex;align-items:center;justify-content:space-between;gap:12px;background:#202c42;color:#f2f5ff;padding:10px 14px;font-size:12px;font-weight:700}.prblem-code-head>span{display:flex;align-items:center;gap:7px}.prblem-code-head svg{width:16px;height:16px}.prblem-code-head b{background:#4a376f;color:#e0c7ff;border-radius:100px;padding:2px 9px;font-size:10px}.prblem-copy{background:#32415b;border:1px solid #66768f;color:white;display:inline-flex;gap:6px;align-items:center;border-radius:20px;padding:5px 11px;white-space:nowrap;font-size:11px}.prblem-code-body{background:#111a2a;color:#e2edff;overflow-x:auto;padding:11px 0;font:12px/1.8 var(--mono);scrollbar-width:thin}.prblem-code-line{display:flex;gap:18px;padding:1px 12px;min-width:max-content;white-space:pre}.prblem-line-num{color:#8393ac;text-align:right;min-width:20px;user-select:none;border-right:1px solid #354158;padding-right:12px}.prblem-code-line code{font:inherit}.prblem-token-string{color:#99e879}.prblem-token-keyword{color:#a9a8ff}.prblem-token-boolean{color:#f7a9d6}.prblem-token-number{color:#fbc579}.prblem-callout{display:flex;align-items:flex-start;gap:12px;padding:18px;border-radius:10px;border:1px solid;margin:18px 0}.prblem-callout p{margin:5px 0 0!important;font-size:13px}.prblem-callout-icon{width:32px;height:32px;flex-shrink:0}.prblem-callout-icon img{width:32px;height:32px;object-fit:contain}.prblem-callout--warning{background:var(--warning-soft);border-color:color-mix(in srgb,var(--warning) 32%,transparent)}.prblem-callout--warning strong{color:var(--warning)}.prblem-callout--success{background:var(--green-soft);border-color:color-mix(in srgb,var(--green) 32%,transparent)}.prblem-callout--success strong{color:var(--green)}.prblem-callout--danger{background:var(--danger-soft);border-color:color-mix(in srgb,var(--danger) 32%,transparent)}.prblem-callout--danger strong{color:var(--danger)}.prblem-checklist{display:grid;gap:8px;padding:5px 0 10px}.prblem-checklist label{display:flex;gap:10px;align-items:center;font-size:14px;cursor:pointer}.prblem-checklist input{accent-color:#0ca864;width:19px;height:19px}.prblem-check-progress{display:flex;gap:12px;align-items:center;margin-top:12px;font-size:12px;color:var(--green)}.prblem-check-progress>div{background:var(--surface-muted);height:7px;border-radius:10px;flex:1;overflow:hidden}.prblem-check-progress i{display:block;width:0;height:100%;background:#0bad65;transition:width .2s}.prblem-archive{border:1px solid var(--border);border-radius:11px;padding:16px;margin:15px 0}.prblem-archive-head{display:flex;align-items:center;gap:13px}.prblem-archive-head>img{width:34px;height:34px}.prblem-archive-head strong{display:block}.prblem-archive-head small{display:block;color:var(--muted);font-size:12px}.prblem-archive details{border-top:1px solid var(--border);margin-top:14px;padding-top:13px}.prblem-archive summary{font-size:13px;font-weight:750;cursor:pointer}.prblem-archive-tree{padding:13px 10px 6px;font:12px/1.8 var(--mono)}.prblem-archive-tree .depth1{padding-left:20px}.prblem-archive-tree .depth2{padding-left:40px}.prblem-video-placeholder{aspect-ratio:16/9;background:#192944;color:#d9e5fb;display:grid;place-content:center;text-align:center;border-radius:12px;gap:8px;margin:16px 0}.prblem-video-play{font-size:52px}.prblem-video-placeholder span:last-child{font-size:13px}.prblem-article-feedback{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:var(--surface-soft);border:1px solid var(--border);border-radius:11px;padding:20px;margin:35px 0 0}.prblem-article-feedback h2{margin:0 0 5px;font-size:18px}.prblem-article-feedback p{color:var(--muted);margin:0;font-size:12px}.prblem-feedback-actions{display:flex;gap:8px}.prblem-feedback-actions button{display:flex;align-items:center;gap:6px;padding:9px 14px;border:1px solid var(--border);border-radius:8px;background:var(--surface);font-weight:700;font-size:13px}.prblem-feedback-actions button.is-selected{border-color:var(--green);background:var(--green-soft)}.prblem-feedback-actions svg{width:16px}.prblem-feedback-message{width:100%;color:var(--green)}
/* Right sidebar */
.prblem-rightsidebar .prblem-panel h2{border-bottom:1px solid var(--border);padding-bottom:13px}.prblem-toc{border-left:1px solid var(--border);display:grid;gap:0}.prblem-toc a{padding:8px 0 8px 12px;margin-left:-2px;border-left:3px solid transparent;font-size:12px;color:var(--muted);line-height:1.3}.prblem-toc a.is-current,.prblem-toc a:hover{border-left-color:var(--blue);color:var(--blue);background:var(--blue-soft)}.prblem-right-related{display:grid}.prblem-right-related a,.prblem-right-related span{border-bottom:1px solid var(--border);padding:10px 0;font-size:12px;line-height:1.3;display:flex;align-items:center;justify-content:space-between;gap:6px}.prblem-right-related :last-child{border-bottom:0}.prblem-right-related .prblem-svg{width:14px;height:14px}.prblem-share{display:flex;gap:8px}.prblem-share a,.prblem-share button{display:grid;place-items:center;border:1px solid var(--border);background:var(--surface-soft);border-radius:50%;width:35px;height:35px;font-size:13px;font-weight:750}.prblem-share svg{width:16px}.prblem-share a:hover,.prblem-share button:hover{background:var(--blue);color:#fff}.prblem-demo-ad,.prblem-demo-side-ad{background:var(--surface-soft);border:1px solid var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;border-radius:9px;padding:18px;color:var(--muted);font-size:12px;min-height:85px;margin:18px 0}.prblem-demo-ad small,.prblem-demo-side-ad small{font-size:10px;letter-spacing:.08em}.prblem-demo-side-ad{min-height:140px;margin:0 0 16px}.prblem-ad{display:flex;align-items:center;justify-content:center;width:100%;max-width:100%;margin:20px 0;text-align:center;overflow:hidden;min-height:90px}.prblem-ad__desktop,.prblem-ad__mobile{max-width:100%}.prblem-ad__mobile{display:none}.prblem-ad img,.prblem-ad iframe{max-width:100%}.prblem-ad--sidebar{min-height:250px}
/* Footer */
.prblem-footer{border-top:1px solid var(--border);background:var(--surface);margin-top:50px;padding:40px 24px 23px}.prblem-footer-inner{display:flex;justify-content:space-between;gap:25px;max-width:1220px;margin:auto}.prblem-footer-brand{font-family:var(--headfont);font-weight:850;font-size:21px}.prblem-footer p{color:var(--muted);font-size:12px;margin:2px 0}.prblem-footer nav{display:flex;flex-wrap:wrap;gap:17px;font-size:13px}.prblem-footer-copy{max-width:1220px;margin:30px auto 0;font-size:12px;color:var(--muted)}
/* Shared plugin fragments */
.prblem-inline-icon{display:inline-block;vertical-align:-.24em;width:1.15em;height:1.15em;object-fit:contain;margin:0 .12em}.prblem-video-facade{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0a1224;border-radius:12px;display:grid;place-items:center}.prblem-video-facade img{position:absolute;width:100%;height:100%;object-fit:cover}.prblem-video-facade button{position:relative;background:#f31c2b;border:0;border-radius:15px;color:white;font-size:30px;width:74px;height:51px;display:grid;place-items:center}.prblem-video-facade iframe{position:absolute;inset:0;width:100%;height:100%;border:0}.prblem-archive-tree-row{display:flex;align-items:center;gap:8px;padding:4px 6px;font-size:12px;min-height:27px}.prblem-archive-tree-row img{width:18px;height:18px;object-fit:contain}.prblem-archive-tree-row button{border:0;background:transparent;padding:0 4px;color:var(--muted)}.prblem-archive-tree-row .path-size{margin-left:auto;color:var(--muted);font-size:11px}.prblem-archive-search{width:100%;border-radius:7px;padding:8px;border:1px solid var(--border);background:var(--surface);font-size:12px;margin:8px 0}
@media(max-width:1300px){.prblem-docshell{grid-template-columns:205px minmax(0,1fr) 210px;gap:14px;width:min(100% - 28px,1400px)}.prblem-panel{padding:16px}.prblem-article{padding:24px}.prblem-header-nav{gap:10px}.prblem-header-inner{gap:20px}}
@media(max-width:1050px){.prblem-docshell{grid-template-columns:210px minmax(0,1fr)}.prblem-rightsidebar{display:none}.prblem-category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.prblem-tools-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.prblem-guides-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.prblem-header-nav{gap:12px}.prblem-header-search kbd{display:none}}
@media(max-width:760px){.admin-bar .prblem-header{top:46px}.prblem-header-inner{min-height:60px;padding:0 15px;gap:10px}.prblem-brand{font-size:20px}.prblem-brandmark{width:34px;height:34px;border-radius:8px;font-size:18px}.prblem-header-search,.prblem-header-nav{display:none}.prblem-mode-toggle{margin-left:auto;width:34px;height:34px}.prblem-menu-toggle{display:grid;width:34px;height:34px}.prblem-mobile-menu.is-open{display:grid;padding:10px 18px 20px;border-top:1px solid var(--border);gap:6px}.prblem-mobile-menu a{padding:9px 5px;font-size:14px}.prblem-docshell{width:min(100% - 20px,680px);display:block;margin-top:10px}.prblem-leftsidebar,.prblem-rightsidebar{display:none}.prblem-article{padding:20px 17px}.prblem-article h1{font-size:29px}.prblem-article-deck{font-size:14px}.prblem-home-hero{padding:75px 13px 70px}.prblem-search-hero{border-radius:15px}.prblem-search-hero button{padding:10px 13px}.prblem-home-wrap,.prblem-list-wrap{width:min(100% - 26px,640px)}.prblem-home-section{padding-top:40px}.prblem-tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.prblem-category-grid,.prblem-guides-grid{grid-template-columns:1fr}.prblem-footer-inner{flex-direction:column}.prblem-section-head h2{font-size:23px}.prblem-docshell .prblem-article-topline{align-items:start}.prblem-article-feedback{align-items:start}}
@media(max-width:390px){.prblem-brand{font-size:18px}.prblem-breadcrumbs{font-size:11px;gap:5px}.prblem-status{font-size:10px;padding:3px 7px}.prblem-home-hero h1{font-size:31px}.prblem-tool-card{font-size:12px;padding:9px;gap:7px}.prblem-tool-card img{width:21px;height:21px}.prblem-article h1{font-size:27px}.prblem-quick-answer{padding:14px}}
@media(max-width:760px){.prblem-ad{min-height:100px}.prblem-ad__desktop{display:none}.prblem-ad__mobile{display:block}}
@media print{.prblem-header,.prblem-footer,.prblem-leftsidebar,.prblem-rightsidebar,.prblem-ad,.prblem-demo-ad,.prblem-feedback-actions,.prblem-print{display:none!important}.prblem-docshell{display:block;width:100%;margin:0}.prblem-article{border:0;padding:0;box-shadow:none}.prblem-code-body{color:#161923;background:#f4f5f9}.prblem-code-head{background:#e8edf8;color:#111}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{animation-duration:.01ms!important;scroll-behavior:auto!important;transition-duration:.01ms!important}}

@media(min-width:761px){.prblem-ad--mobile-only{display:none!important}}

/* v0.1.1 - theme-managed, consistent line icons; plugin editorial icons unaffected */
.prblem-tool-card>.prblem-tool-icon{width:24px;height:24px;stroke:var(--blue);stroke-width:1.8;flex:0 0 24px}
.prblem-tool-card:hover>.prblem-tool-icon{stroke:var(--blue)}
.prblem-category-symbol>.prblem-category-icon{width:26px;height:26px;stroke:var(--blue);stroke-width:1.8}
.prblem-aside-categories>a>.prblem-category-icon{width:18px;height:18px;stroke:var(--blue);flex:0 0 18px}
html[data-mode=dark] .prblem-tool-card>.prblem-tool-icon,
html[data-mode=dark] .prblem-category-symbol>.prblem-category-icon,
html[data-mode=dark] .prblem-aside-categories>a>.prblem-category-icon{stroke:var(--blue)}


/* v0.1.2: docs fidelity, legacy code conversion, editorial components */
.prblem-article-body .prblem-code-box,.prblem-article-body .prblem-methods{max-width:100%;min-width:0}
.prblem-code-box{background:#121a2a;box-shadow:0 4px 14px rgba(10,23,44,.08)}
.prblem-code-box .prblem-code-head{background:#27344b;color:#eff6ff;min-height:43px}
.prblem-code-box .prblem-code-head b{background:#403166;color:#d5baff}
.prblem-code-box .prblem-copy{border:1px solid #61718b;color:#f6f9ff;background:rgba(255,255,255,.05);border-radius:8px;padding:5px 11px;cursor:pointer}
.prblem-code-box .prblem-copy:hover,.prblem-code-box .prblem-copy:focus-visible{background:#384969}
.prblem-code-box .prblem-code-body{background:#141c2c;color:#dce9fa;overflow:auto;padding:11px 0;max-height:680px;scrollbar-width:thin}
.prblem-code-box .prblem-code-line{padding:0 15px;gap:17px;min-width:max-content;white-space:pre;font:12.5px/1.85 var(--mono,monospace)}
.prblem-code-box .prblem-line-num{color:#8191aa;border-right:1px solid #33415a;text-align:right;padding-right:12px;min-width:25px;user-select:none}
.prblem-code-box code{font:inherit;background:none!important;color:inherit!important;border:0!important;padding:0!important;white-space:pre}
.prblem-code-box .prblem-token-string{color:#a4ef73}
.prblem-code-box .prblem-token-keyword{color:#b4b3ff}
.prblem-code-box .prblem-token-boolean{color:#ffa0c4}
.prblem-code-box .prblem-token-number{color:#ffcf7c}
.prblem-code-box .prblem-token-comment{color:#8fa3bd}
.prblem-article-body .prblem-solution-step{display:flex;gap:15px;align-items:flex-start;margin:22px 0}
.prblem-solution-step-num{flex:0 0 40px;height:40px;display:grid;place-items:center;border-radius:50%;background:var(--blue);color:#fff;font-weight:800;font-size:17px;box-shadow:0 3px 10px rgba(40,90,220,.20)}
.prblem-solution-step-body{flex:1;min-width:0}
.prblem-article-body .prblem-solution-step h3{font-size:18px;margin:4px 0 8px}
.prblem-article-body .prblem-solution-step p{margin:0 0 12px}
.prblem-user-quick-answer .prblem-quick-content p{margin:0 0 8px}
.prblem-user-quick-answer .prblem-quick-content p:last-child{margin-bottom:0}
.prblem-methods [data-method-panel][hidden]{display:none!important}
.prblem-methods>.prblem-method-tabs{margin:12px 0 19px}
.prblem-methods>[data-method-panel]{padding-bottom:4px}
.prblem-toc{max-height:none!important;overflow:visible!important}
.prblem-toc a{font-size:12px;line-height:1.4;padding:10px 6px 10px 12px}
.prblem-rightsidebar{scrollbar-width:thin}
.prblem-article-body .prblem-callout{max-width:100%;box-sizing:border-box}
@media(max-width:760px){.prblem-code-box .prblem-code-line{font-size:11.5px}.prblem-code-box .prblem-code-head{gap:6px;padding:9px}.prblem-solution-step-num{flex-basis:33px;width:33px;height:33px}}
.prblem-article-body pre:not(.prblem-code-body pre){background:#141c2c;color:#dce9fa;white-space:pre;overflow-x:auto;border-radius:10px;padding:16px;font:12.5px/1.8 var(--mono,monospace)}
.prblem-rightsidebar .prblem-panel:first-child .prblem-toc a{overflow-wrap:anywhere}
@media print{.prblem-article-body .prblem-code-box .prblem-code-body{background:#f4f5fa;color:#121826}.prblem-code-box .prblem-code-head{background:#e8edf8;color:#121826}.prblem-code-box .prblem-copy{display:none}.prblem-code-box .prblem-line-num{color:#555;border-right:1px solid #aaa}}

/* v0.1.3 — reference screenshot fidelity; one-line meta, typography, safe visual builder */
:root{--font:Inter,system-ui,-apple-system,'Segoe UI',Arial,sans-serif;--headfont:Inter,system-ui,-apple-system,'Segoe UI',Arial,sans-serif;--mono:'JetBrains Mono',ui-monospace,Consolas,monospace}
.prblem-article>h1{font-family:var(--headfont);font-weight:800;letter-spacing:-.042em;font-size:clamp(29px,2.9vw,39px);line-height:1.15}
.prblem-article-body h2{font-family:var(--headfont);font-weight:750;letter-spacing:-.035em}
.prblem-article-meta{display:flex;align-items:center;flex-wrap:wrap;column-gap:12px;row-gap:9px;margin:0 0 19px;min-height:26px}
.prblem-article-meta .prblem-chip{padding:5px 12px;line-height:1.2;white-space:nowrap}
.prblem-article-meta .prblem-inline-meta,.prblem-article-meta .prblem-print{font-size:12px;display:inline-flex;align-items:center;gap:5px;line-height:1.3;white-space:nowrap}
.prblem-article-meta .prblem-inline-meta svg,.prblem-article-meta .prblem-print svg{height:15px;width:15px}
.prblem-meta-date{border-left:1px solid var(--border);padding-left:12px}
.prblem-article-meta .prblem-print{margin:0}
.prblem-article-body .prblem-builder-steps{margin:26px 0 22px}
.prblem-builder-steps>h2{margin:0 0 8px;font-weight:780}
.prblem-builder-steps>.prblem-method-tabs{margin:18px 0}
.prblem-builder-steps [data-method-panel] p{margin:0 0 14px}
.prblem-builder-steps [data-method-panel] h3{font-size:20px;font-weight:750;margin:16px 0 8px}
.prblem-checklist-section{margin:24px 0 27px}
.prblem-checklist{display:grid;gap:8px;padding:0}
.prblem-checklist-top{display:flex;align-items:center;gap:16px;justify-content:space-between;flex-wrap:wrap;margin:0 0 4px}
.prblem-article-body .prblem-checklist-top h2{margin:0;font-family:var(--headfont);font-size:21px;font-weight:780}
.prblem-check-progress{display:flex;align-items:center;gap:12px;margin:0;min-width:170px;flex:0 1 280px;font-size:12px;color:var(--green);font-weight:750;white-space:nowrap}
.prblem-check-progress>.prblem-progress-track,.prblem-check-progress>div{background:var(--surface-muted);height:8px;flex:1;min-width:80px;border-radius:20px;overflow:hidden}
.prblem-check-progress i{display:block;height:100%;width:0;background:#0bb75f;border-radius:20px;transition:width .18s}
.prblem-checklist label{font-size:14px;line-height:1.55;cursor:pointer}
.prblem-checklist input{accent-color:#0bb75f}
@media(max-width:760px){.prblem-article-meta{gap:8px}.prblem-meta-date{padding-left:0;border-left:0}.prblem-check-progress{flex:1 1 100%;max-width:100%}.prblem-article>h1{font-size:clamp(27px,6vw,34px)}}

/* v0.1.4 — ordered troubleshooting steps, safe deterministic layout and checklist */
.prblem-builder-steps .prblem-guided-steps{display:grid;gap:19px;margin:20px 0 8px;max-width:100%}
.prblem-guided-step{display:flex;align-items:flex-start;gap:17px;min-width:0}
.prblem-guided-step-num{flex:0 0 41px;width:41px;height:41px;border-radius:50%;display:grid;place-items:center;background:#2457f5;color:#fff;font:800 17px/1 var(--headfont);box-shadow:0 3px 9px rgba(35,78,232,.14)}
.prblem-guided-step-content{min-width:0;flex:1;padding-top:5px}
.prblem-article-body .prblem-guided-step-content h3{margin:0 0 7px;font-family:var(--headfont);font-size:17px;font-weight:750;line-height:1.38;letter-spacing:-.02em}
.prblem-guided-step-description{font-size:14px;line-height:1.65;overflow-wrap:anywhere}
.prblem-article-body .prblem-guided-step-description p{margin:0 0 8px}
.prblem-article-body .prblem-guided-step-description p:last-child{margin-bottom:0}
.prblem-guided-step-description .prblem-code-box{margin-top:12px}
.prblem-checklist-section{clear:both;margin:28px 0}
.prblem-checklist{gap:9px}
.prblem-checklist label{display:flex;align-items:flex-start;gap:10px;min-height:25px;line-height:1.55}
.prblem-checklist label input{flex:0 0 18px;width:18px;height:18px;margin:2px 0 0}
.prblem-check-progress .prblem-progress-track{min-width:80px}
@media(max-width:760px){.prblem-guided-step-num{flex-basis:35px;width:35px;height:35px;font-size:15px}.prblem-guided-step{gap:12px}.prblem-guided-step-content{padding-top:3px}.prblem-article-body .prblem-guided-step-content h3{font-size:16px}.prblem-guided-step-description{font-size:13px}}

/* v0.1.5: readable language-aware highlighting in snippets, including nested solution steps */
.prblem-code-box .prblem-token-comment{color:#8da1be;font-style:italic}
.prblem-code-box .prblem-token-variable{color:#79c9ff}
.prblem-code-box .prblem-token-keyword{color:#b6a2ff}
.prblem-code-box .prblem-token-string{color:#9ee887}
.prblem-code-box .prblem-token-number{color:#ffca85}
.prblem-guided-step-content .prblem-code-box{width:100%;max-width:100%}
.prblem-guided-step-description .prblem-callout{margin:14px 0}
.prblem-guided-step-description .prblem-video-placeholder{max-width:100%}

/* v0.1.6: embedded blocks stay inside their own numbered solution step */
.prblem-visual-guided-steps .prblem-guided-step{align-items:flex-start}
.prblem-visual-guided-steps .prblem-guided-step-description>*{max-width:100%;margin-top:12px;margin-bottom:12px}
.prblem-visual-guided-steps .prblem-guided-step-description>*:first-child{margin-top:0}
.prblem-visual-guided-steps .prblem-code-box{width:100%;min-width:0;max-width:100%;overflow:hidden}
.prblem-visual-guided-steps .prblem-code-body{max-width:100%;overflow-x:auto}
.prblem-step-figure{max-width:100%;margin:12px 0}
.prblem-step-figure img{display:block;max-width:100%;height:auto;border-radius:8px}
.prblem-step-figure figcaption{font-size:12px;color:var(--muted,#64748b);padding:6px 2px}
.prblem-visual-guided-steps .prblem-video-facade{max-width:100%}

/* 0.1.7: combined Solutions + Blog taxonomy index, with accessible category filters */
.prblem-content-filters{display:flex;gap:9px;flex-wrap:wrap;align-items:center;margin:0 0 26px}
.prblem-content-filters a{display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:999px;background:var(--surface);color:var(--text);font-size:13px;line-height:1.4;font-weight:650;text-decoration:none;padding:9px 15px}
.prblem-content-filters a:hover{border-color:var(--blue);color:var(--blue)}
.prblem-content-filters a[aria-current="page"]{background:var(--blue);border-color:var(--blue);color:#fff}
.prblem-guide-card .prblem-guide-label--blog{color:var(--muted)}
.prblem-category-description{color:var(--muted);font-size:14px;max-width:720px;margin-top:-16px;margin-bottom:24px}
@media(max-width:500px){.prblem-content-filters a{padding:8px 11px;font-size:12px}}

/* v0.1.8: search engine, consistent mobile filters and lightweight live suggestions. */
.prblem-search-page .prblem-list-head{max-width:1000px;margin-inline:auto;text-align:center}
.prblem-search-page .prblem-list-head h1{font-size:clamp(27px,3.2vw,40px);line-height:1.2;margin:9px 0 10px}
.prblem-search-page .prblem-list-head>.prblem-muted{margin:0 0 22px}
.prblem-result-tabs{display:flex;gap:6px;overflow-x:auto;scrollbar-width:thin;border-bottom:1px solid var(--border);margin:25px 0 16px;padding-bottom:9px}
.prblem-result-tabs a{padding:10px 17px;border-radius:10px;background:var(--surface);border:1px solid var(--border);font-weight:700;font-size:13px;white-space:nowrap}
.prblem-result-tabs a.is-active,.prblem-result-tabs a:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.prblem-search-categories{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:27px}
.prblem-search-categories a{border:1px solid var(--border);background:var(--surface);border-radius:99px;padding:6px 13px;font-size:12px;white-space:nowrap}
.prblem-search-categories a.is-active,.prblem-search-categories a:hover{color:var(--blue);background:var(--blue-soft);border-color:#9cb8f2}
.prblem-search-section{margin:27px 0 45px}
.prblem-search-section .prblem-section-head{margin-bottom:18px}
.prblem-search-section .prblem-section-head h2{font-size:23px}
.prblem-search-page .prblem-guides-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
.prblem-no-results{background:var(--surface);border:1px dashed var(--border);border-radius:13px;padding:24px;margin:20px 0 45px}
.prblem-no-results p{font-size:14px;color:var(--muted);margin:8px 0}
.prblem-no-results a{font-size:13px;color:var(--blue);font-weight:700}
.prblem-suggest{padding:8px;overscroll-behavior:contain}
.prblem-suggest-label{font-size:10px;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:800;padding:12px 11px 3px}
.prblem-suggest-icon{width:25px;height:25px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue);border-radius:7px;flex:0 0 25px}
.prblem-suggest-title{flex:1;line-height:1.35;overflow:hidden;text-overflow:ellipsis}
.prblem-suggest a.is-current{background:var(--blue-soft);color:var(--blue)}
@media(max-width:1050px){.prblem-search-page .prblem-guides-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:760px){.prblem-search-page .prblem-guides-grid{grid-template-columns:1fr}.prblem-result-tabs a{padding:8px 12px}.prblem-search-section .prblem-section-head h2{font-size:21px}.prblem-search-categories{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;scrollbar-width:thin}.prblem-search-page .prblem-list-head{text-align:left}.prblem-search-page .prblem-search-hero{margin:0}}

/* v0.1.9 — compact, readable and keyboard navigable live results. */
.prblem-search-form{isolation:isolate}
.prblem-suggest{box-sizing:border-box;max-height:min(420px,calc(100dvh - 100px));overflow-y:auto;overflow-x:hidden;padding:7px 8px 8px;text-align:left!important;overscroll-behavior:contain;scrollbar-width:thin;box-shadow:0 22px 55px rgba(19,43,80,.15);border-radius:14px}
.prblem-suggest-label{padding:10px 11px 5px;font-size:10px;line-height:1.25;letter-spacing:.1em;text-align:left}
.prblem-suggest .prblem-suggest-result{display:flex;align-items:center;gap:11px;text-align:left;min-height:61px;padding:9px 10px;margin:0;border-radius:9px;color:var(--text);text-decoration:none;font-weight:400}
.prblem-suggest .prblem-suggest-result:hover,.prblem-suggest .prblem-suggest-result.is-current,.prblem-suggest .prblem-suggest-all:hover,.prblem-suggest .prblem-suggest-all.is-current{background:var(--blue-soft);color:var(--text)}
.prblem-suggest-icon{display:grid;place-items:center;width:34px;height:34px;min-width:34px;border-radius:9px;flex:0 0 34px;color:var(--blue);background:var(--blue-soft)}
.prblem-suggest-icon svg{width:19px;height:19px}
.prblem-suggest-icon--blog{color:#6e53bd;background:rgba(117,86,199,.10)}
.prblem-suggest-icon--page{color:#4b7793;background:rgba(80,127,157,.10)}
.prblem-suggest-icon--tool{color:#0c897b;background:rgba(18,160,139,.10)}
.prblem-suggest-words{display:flex;flex-direction:column;align-items:flex-start;gap:3px;min-width:0;flex:1}
.prblem-suggest-title{font-size:13px;line-height:1.4;font-weight:650;white-space:normal;overflow-wrap:anywhere;text-align:left}
.prblem-suggest-description{display:block;max-width:100%;color:var(--muted);font-size:11px;line-height:1.35;text-align:left;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.prblem-suggest-title mark{background:rgba(36,88,245,.11);color:var(--blue);border-radius:3px;padding:0 1px;font-weight:800}
.prblem-suggest-arrow{color:var(--muted);font-size:15px;margin-left:auto;flex:none}
.prblem-suggest .prblem-suggest-all{position:sticky;bottom:-8px;z-index:2;background:var(--surface);display:flex;align-items:center;justify-content:center;gap:8px;text-align:center;color:var(--blue);font-size:12px;font-weight:750;border-top:1px solid var(--border);border-radius:0 0 8px 8px;min-height:42px;margin-top:8px;padding:11px}
.prblem-suggest-empty{padding:17px 13px 13px;text-align:left;color:var(--muted);font-size:12px}
@media(max-width:760px){.prblem-suggest{max-height:min(350px,calc(100dvh - 115px));border-radius:12px}.prblem-suggest .prblem-suggest-result{padding:9px 8px;min-height:58px}.prblem-suggest-icon{width:30px;height:30px;min-width:30px;flex-basis:30px}.prblem-suggest-title{font-size:12px}.prblem-suggest-description{font-size:10px}}
@media(max-width:390px){.prblem-suggest{left:0;right:0}.prblem-suggest-title{font-size:12px}}
html[data-mode=dark] .prblem-suggest-title mark{background:rgba(94,148,255,.22);color:#b8d2ff}

/* PRBLEM 0.2.0: scrollbar-free 5-result search, editor request and privacy feedback. */
.prblem-suggest,.prblem-header-search .prblem-suggest{height:auto!important;max-height:none!important;overflow:visible!important;scrollbar-width:none!important;-ms-overflow-style:none;text-align:left}
.prblem-suggest::-webkit-scrollbar{display:none!important}
.prblem-suggest .prblem-suggest-result{min-height:0;padding:7px 9px;gap:9px}
.prblem-suggest-icon{width:30px;height:30px;min-width:30px;flex-basis:30px}
.prblem-suggest-icon svg{height:17px;width:17px}
.prblem-suggest-title{font-size:12.5px;line-height:1.25}
.prblem-suggest-description{font-size:10.5px;line-height:1.25}
.prblem-suggest-label{padding:6px 10px 3px;font-size:9px}
.prblem-suggest .prblem-suggest-all{position:static!important;bottom:auto!important;margin-top:3px;padding:9px;min-height:32px}
.prblem-suggest-meta{display:flex;flex-wrap:wrap;gap:5px}
.prblem-suggest-meta small{font-size:10px;border-radius:20px;padding:2px 7px;background:var(--surface-soft);color:var(--muted)}
.prblem-suggest-meta small.is-verified{color:var(--green);background:var(--green-soft)}
.prblem-suggest-quick{font-size:10.5px;line-height:1.3;color:var(--muted);overflow:hidden;display:-webkit-box;-webkit-box-orient:vertical;-webkit-line-clamp:2}
.prblem-decode-hint{display:flex;flex-direction:column;gap:3px;padding:9px 11px;margin:3px 1px 6px;border-radius:9px;background:var(--blue-soft);color:var(--text);text-align:left}
.prblem-decode-hint strong{font-size:12px;color:var(--blue)}
.prblem-decode-hint span{font-size:11px;line-height:1.4}
.prblem-decode-hint small{font-size:10px;color:var(--muted)}
.prblem-request-section{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:24px;margin:24px 0}
.prblem-request-section h2{margin:0 0 6px;font-size:22px}.prblem-request-section p{color:var(--muted);font-size:13px}
.prblem-request-form{display:grid;gap:10px;max-width:640px}.prblem-request-form>label{font-size:12px;font-weight:650}.prblem-request-form input[type=text],.prblem-request-form textarea{width:100%;border:1px solid var(--border);background:var(--surface-soft);border-radius:10px;padding:11px;color:var(--text)}
.prblem-request-form button{justify-self:start;background:var(--blue);color:white;padding:10px 19px;border:0;border-radius:9px;font-weight:700}
.prblem-request-form .prblem-request-message{margin:0}.prblem-request-consent{display:flex;gap:8px;align-items:flex-start;font-weight:400!important}.prblem-honeypot{position:absolute!important;left:-10000px;width:1px;height:1px;overflow:hidden}
.prblem-search-quality{display:flex;gap:9px;align-items:center;flex-wrap:wrap;padding:18px 0;font-size:13px;color:var(--muted)}
.prblem-search-quality button{border:1px solid var(--border);background:var(--surface);border-radius:8px;padding:7px 12px;color:var(--text)}
.prblem-search-quality button:hover{border-color:var(--blue)}
@media(max-width:760px){.prblem-suggest{max-height:none!important;overflow:visible!important}.prblem-suggest-title{font-size:12px}.prblem-suggest-description{font-size:10px}.prblem-search-quality{align-items:start}}
@media(max-height:590px){.prblem-suggest .prblem-suggest-description{display:none}.prblem-decode-hint span{display:none}}

/* PRBLEM 0.2.1 — discoverable error analysis and solution requests */
.prblem-search-actions{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:8px;margin:12px 0 3px}
.prblem-search-action{display:inline-flex;align-items:center;justify-content:center;gap:7px;background:var(--surface);color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:7px 13px;font-size:12px;line-height:1.4;font-weight:650;cursor:pointer}
.prblem-search-action:hover,.prblem-search-action:focus-visible{border-color:var(--blue);color:var(--blue);background:var(--blue-soft)}
.prblem-search-action svg{width:15px;height:15px;flex:none}
.prblem-suggest-empty{display:flex;flex-direction:column;gap:5px;padding:13px 12px 7px}
.prblem-suggest-empty strong{font-size:12px;color:var(--text)}
.prblem-suggest-empty span{font-size:11px;color:var(--muted)}
.prblem-suggest .prblem-suggest-request{width:calc(100% - 15px);margin:4px 7px 5px;display:block;border:1px solid var(--blue);background:var(--blue-soft);color:var(--blue);border-radius:9px;padding:10px;font-size:12px;font-weight:750;text-align:center;cursor:pointer}
.prblem-suggest .prblem-suggest-request:hover{filter:brightness(.97)}
.prblem-action-dialog{position:fixed;inset:0;margin:auto;width:min(94vw,570px);max-width:570px;max-height:min(92dvh,720px);overflow-y:auto;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:0 25px 70px rgba(13,26,53,.22);z-index:999999;box-sizing:border-box}
.prblem-action-dialog::backdrop{background:rgba(8,21,46,.55)}
.prblem-action-dialog.prblem-fallback-dialog{position:fixed;z-index:999999}
.prblem-action-dialog .prblem-request-section{border:0;margin:0;padding:0;background:transparent}
.prblem-action-dialog .prblem-request-section h2,.prblem-action-dialog .prblem-dialog-content h2{margin:0 38px 7px 0;font-size:23px;line-height:1.2}
.prblem-action-dialog .prblem-request-section>p,.prblem-action-dialog .prblem-dialog-content>p{font-size:13px;line-height:1.55;color:var(--muted);margin:0 0 17px}
.prblem-dialog-close{position:absolute;top:12px;right:13px;width:34px;height:34px;border:1px solid var(--border);border-radius:9px;color:var(--text);background:var(--surface-soft);font-size:22px;line-height:1;cursor:pointer}
.prblem-dialog-content{display:grid;gap:10px}
.prblem-dialog-content label{font-size:12px;font-weight:700}
.prblem-dialog-content textarea{display:block;width:100%;box-sizing:border-box;resize:vertical;min-height:116px;background:var(--surface-soft);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:12px;font:13px/1.5 var(--mono)}
.prblem-dialog-controls{display:flex;justify-content:flex-start;gap:10px}
.prblem-dialog-controls button.prblem-primary-action{border:0;border-radius:9px;padding:11px 18px;color:white;background:var(--blue);font-weight:750;cursor:pointer}
.prblem-error-result{padding:13px;background:var(--blue-soft);border-radius:9px;font-size:13px;line-height:1.45}
.prblem-error-result[hidden]{display:none}
.prblem-error-result strong{color:var(--blue)}.prblem-error-result p{margin:7px 0 10px}.prblem-error-find{font-weight:750;color:var(--blue)}
.prblem-action-dialog .prblem-privacy-note{margin-top:0!important;font-size:11px!important}
.prblem-request-message{min-height:1em}
@media(max-width:650px){.prblem-action-dialog{padding:18px;max-height:88dvh}.prblem-search-actions{margin-top:10px;gap:7px}.prblem-search-action{font-size:11px;padding:7px 10px}}


/* v0.2.2 Error Analysis panel, independent of ordinary search, light/dark and mobile. */
.prblem-analysis-report{margin:24px 0 27px;padding:24px;border:1px solid var(--border);border-radius:17px;background:var(--surface);box-shadow:var(--shadow)}
.prblem-analysis-head{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.prblem-analysis-head .prblem-analysis-mark{display:grid;place-items:center;border-radius:12px;width:45px;height:45px;background:var(--blue-soft);color:var(--blue);flex:0 0 auto}
.prblem-analysis-head .prblem-analysis-mark svg{height:25px;width:25px}
.prblem-analysis-head h2{font-size:25px;line-height:1.2;margin:3px 0 0}
.prblem-analysis-head .prblem-analysis-recognized{margin-left:auto;border-radius:24px;padding:5px 11px;background:var(--green-soft);color:var(--green);font-size:12px;font-weight:750;display:flex;align-items:center;gap:5px}
.prblem-analysis-recognized svg{height:16px;width:16px}
.prblem-analysis-summary{background:var(--blue-soft);border:1px solid var(--border);padding:16px;border-radius:11px;margin-top:17px;font-size:14px}
.prblem-analysis-summary>p:first-child{margin:0 0 9px;font-weight:650}
.prblem-analysis-category{display:inline-block;background:var(--surface);border:1px solid var(--border);padding:4px 9px;border-radius:30px;color:var(--blue);font-size:12px;font-weight:700}
.prblem-analysis-caveat{font-size:12px;color:var(--muted);margin:10px 0 0}
.prblem-analysis-columns{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin:20px 0 0}
.prblem-analysis-columns>div{background:var(--surface-soft);border:1px solid var(--border);border-radius:11px;padding:16px 19px}
.prblem-analysis-columns h3{font-size:16px;margin:0 0 12px}
.prblem-analysis-columns ul,.prblem-analysis-columns ol{padding-left:21px;margin:0;line-height:1.55;color:var(--text);font-size:13px}
.prblem-analysis-columns li+li{margin-top:11px}
.prblem-analysis-columns li::marker{color:var(--blue);font-weight:700}
.prblem-analysis-recommended{margin-top:18px;border:1px solid var(--border);border-radius:11px;padding:15px;display:flex;align-items:center;gap:13px}
.prblem-analysis-recommended>.prblem-svg{color:var(--blue);width:27px;height:27px}
.prblem-analysis-recommended>span{display:flex;flex-direction:column;gap:3px;line-height:1.35;font-size:13px}
.prblem-analysis-recommended a{color:var(--blue);font-weight:750}
.prblem-analysis-privacy{font-size:11px;color:var(--muted);display:flex;align-items:center;gap:8px;margin:16px 0 0}
.prblem-analysis-privacy svg{width:16px;height:16px;flex:none}
.prblem-search-action svg{overflow:visible;stroke-linejoin:round}
@media(max-width:760px){.prblem-analysis-report{padding:16px;margin:18px 0}.prblem-analysis-columns{grid-template-columns:1fr;gap:11px}.prblem-analysis-head h2{font-size:21px}.prblem-analysis-head .prblem-analysis-recognized{margin-left:0}.prblem-analysis-columns>div{padding:14px}.prblem-analysis-privacy{align-items:flex-start}}

/* v0.2.3 — equal-height result cards, truthful metadata and readable pagination */
.prblem-search-page .prblem-guides-grid{align-items:stretch}
.prblem-search-page .prblem-guide-card{display:flex;flex-direction:column;min-width:0;gap:0;overflow-wrap:anywhere}
.prblem-search-page .prblem-guide-card h3{line-height:1.37;margin:13px 0 9px}
.prblem-search-page .prblem-guide-card p{line-height:1.65;margin:0 0 12px}
.prblem-search-page .prblem-guide-card .prblem-readmore{margin-top:auto;padding-top:13px;align-self:flex-start}
.prblem-result-card-top{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;min-height:25px}
.prblem-result-verified{display:inline-flex;align-items:center;gap:4px;background:#e7f9ef;color:#087d43;border:1px solid #b6e9cb;border-radius:100px;padding:4px 9px;font-size:11px;font-weight:800}
.prblem-result-verified svg{width:13px;height:13px}
.prblem-result-meta{display:flex;flex-wrap:wrap;gap:5px;margin-top:3px;align-items:center}
.prblem-result-meta span{display:inline-flex;gap:4px;align-items:center;border:1px solid var(--border);background:var(--surface-soft);color:var(--muted);border-radius:100px;padding:4px 9px;font-size:11px;line-height:1.25}
.prblem-result-meta svg{width:12px;height:12px}
.prblem-pagination-summary{color:var(--muted);font-size:13px;text-align:center;margin:26px 0 8px}
.prblem-search-page .navigation.pagination .nav-links{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:7px;margin-top:10px}
.prblem-search-page .navigation.pagination .page-numbers{display:inline-flex;min-width:38px;min-height:38px;align-items:center;justify-content:center;padding:7px 12px;border-radius:9px;border:1px solid var(--border);background:var(--surface);color:var(--text);font-size:13px;font-weight:700;text-decoration:none}
.prblem-search-page .navigation.pagination .page-numbers.current,.prblem-search-page .navigation.pagination a.page-numbers:hover{background:var(--blue);color:#fff;border-color:var(--blue)}
:root[data-mode="dark"] .prblem-result-verified{background:#113d29;color:#a2f2c1;border-color:#24714c}
@media(max-width:760px){.prblem-result-card-top{align-items:flex-start}.prblem-search-page .navigation.pagination .page-numbers{min-width:34px;min-height:35px;padding:6px 9px}}

/* PRBLEM v0.3.6: responsive containment, readable mobile code and stable reserved media. */
.prblem-docshell,.prblem-article-main,.prblem-article,.prblem-article-body{min-width:0}
.prblem-article-body img,.prblem-article-body video,.prblem-article-body svg{max-width:100%;height:auto}
.prblem-article-body pre,.prblem-article-body .prblem-code-box{max-width:100%}
.prblem-article-body table{max-width:100%;display:block;overflow-x:auto}
.prblem-article-body .prblem-archive-v2,.prblem-article-body .prblem-video-enhanced{max-width:100%;min-width:0}
.prblem-article-body .prblem-code-body{overscroll-behavior-x:contain}
.prblem-article-body .prblem-archive-meta strong{overflow-wrap:anywhere}
@media(max-width:760px){
 .prblem-article-body .prblem-code-body{overflow-x:auto;-webkit-overflow-scrolling:touch}
 .prblem-search-page .prblem-guides-grid,.prblem-home .prblem-guides-grid{grid-template-columns:minmax(0,1fr)}
 .prblem-search-page .prblem-guide-card{min-width:0}
 .prblem-article-body iframe{max-width:100%}
}
@media(prefers-reduced-motion:reduce){.prblem-check-progress i{transition:none!important}}

/* PRBLEM v0.4.0: privacy-conscious feedback and responsive advertising without fixed-width overflow. */
.prblem-feedback-reason{width:100%;display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:10px;font-size:13px}
.prblem-feedback-reason[hidden]{display:none!important}
.prblem-feedback-reason label{font-weight:650}
.prblem-feedback-reason select{background:var(--surface);color:var(--text);border:1px solid var(--border);padding:9px;border-radius:8px;max-width:100%}
.prblem-feedback-reason button{border:1px solid var(--blue);background:var(--blue);color:#fff;border-radius:8px;padding:9px 13px;font-weight:650}
.prblem-article-feedback{flex-wrap:wrap}
.prblem-article,.prblem-article-body,.prblem-code-box,.prblem-archive,.prblem-ad{min-width:0}
.prblem-article-body pre,.prblem-article-body table{max-width:100%;overflow-x:auto}
.prblem-ad img{height:auto;max-width:100%}.prblem-ad iframe{max-width:100%}
@media(max-width:760px){.prblem-feedback-reason{flex-direction:column;align-items:stretch}.prblem-feedback-reason select,.prblem-feedback-reason button{width:100%}.prblem-ad__desktop{display:none!important}.prblem-ad__mobile{display:block!important}}
@media print{.prblem-feedback-reason{display:none!important}}


/* v0.4.3: Documentation-only mobile containment. Never hide body overflow to mask faulty elements. */
.prblem-docshell,.prblem-article-main,.prblem-article,.prblem-article-body{min-width:0;max-width:100%}
.prblem-article-body{overflow-wrap:anywhere;word-break:normal}
.prblem-article-body > *, .prblem-article-body .prblem-methods,
.prblem-article-body .prblem-guided-step,.prblem-article-body .prblem-guided-step-content,
.prblem-article-body .prblem-visual-guided-steps{min-width:0;max-width:100%}
.prblem-article-body img,.prblem-article-body video,.prblem-article-body canvas,
.prblem-article-body iframe,.prblem-article-body embed,.prblem-article-body object{max-width:100%;height:auto}
.prblem-article-body iframe[src*="youtube.com"],.prblem-article-body iframe[src*="youtube-nocookie.com"]{aspect-ratio:16/9;width:100%;height:auto}
.prblem-article-body pre,.prblem-article-body .prblem-code-body,
.prblem-article-body .prblem-archive-tree,.prblem-article-body .prblem-archive-preview-body{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain;-webkit-overflow-scrolling:touch}
.prblem-article-body :not(pre)>code,.prblem-article-body a{overflow-wrap:anywhere}
.prblem-article-body table{display:block;max-width:100%;overflow-x:auto;-webkit-overflow-scrolling:touch}
.prblem-article-body .prblem-code-box,.prblem-article-body .prblem-archive-v2,
.prblem-article-body .prblem-video-enhanced,.prblem-article-body .prblem-checklist-section{width:100%;max-width:100%;min-width:0}
.prblem-article-body .prblem-ad,.prblem-article-body .prblem-ad__desktop,
.prblem-article-body .prblem-ad__mobile{max-width:100%;min-width:0}
/* Fixed non-responsive ads scroll inside their own slot; they must not expand the entire page. */
.prblem-ad--responsive,.prblem-ad--split,.prblem-ad--desktop-only{max-width:100%;min-width:0}
.prblem-ad--responsive>.prblem-ad__desktop,.prblem-ad--split>.prblem-ad__desktop,
.prblem-ad--split>.prblem-ad__mobile{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain}
.prblem-home-feed-filters{display:flex;gap:8px;flex-wrap:wrap;margin:-4px 0 22px}
.prblem-home-feed-filters a{display:inline-block;font-size:12px;font-weight:700;padding:8px 14px;border:1px solid var(--border);border-radius:10px;background:var(--surface)}
.prblem-home-feed-filters a[aria-current=page]{background:var(--blue);color:#fff;border-color:var(--blue)}
.prblem-home-feed-filters a:focus-visible{outline-offset:3px}
/* Accessible, high-contrast checklist card: no extra CSS plugin or customizer rules required. */
.prblem-article-body .prblem-checklist-section{margin:28px 0}
.prblem-checklist-section .prblem-checklist{display:grid;gap:0;padding:18px 20px 12px;border:1px solid var(--border);border-radius:14px;background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
.prblem-checklist-section .prblem-checklist-top{gap:12px;padding-bottom:13px;margin:0 0 5px;border-bottom:1px solid var(--border)}
.prblem-checklist-section .prblem-check-progress{min-width:0;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.prblem-checklist-section .prblem-check-progress [data-progress-label]{font-size:12px;font-weight:750;color:var(--green);white-space:nowrap}
.prblem-checklist-section .prblem-progress-track{min-width:84px;max-width:180px;width:125px;height:8px;background:var(--surface-muted);border-radius:99px;overflow:hidden}
.prblem-checklist-section .prblem-progress-track i{background:#0dad68;display:block;height:100%;border-radius:99px}
.prblem-checklist-section .prblem-checklist label{display:flex;gap:11px;align-items:flex-start;padding:9px 6px;margin:0;border-radius:7px;min-width:0}
.prblem-checklist-section .prblem-checklist label:hover{background:var(--surface-soft)}
.prblem-checklist-section .prblem-checklist label input{width:18px;height:18px;flex:0 0 18px;margin:3px 0 0;accent-color:#0aa65c}
.prblem-checklist-section .prblem-checklist label span{min-width:0;overflow-wrap:anywhere}
@media(max-width:760px){
  .prblem-docshell{width:calc(100% - 20px)!important;max-width:680px;margin-inline:auto;display:block;min-width:0}
  .prblem-article-main{width:100%;max-width:100%;min-width:0}
  .prblem-article{width:100%;max-width:100%;padding:18px 15px;min-width:0}
  .prblem-article-body .prblem-method-tabs{max-width:100%;flex-wrap:wrap}
  .prblem-checklist-section .prblem-checklist{padding:14px 12px 9px}
  .prblem-checklist-section .prblem-check-progress{flex:1 1 100%}
  .prblem-checklist-section .prblem-progress-track{flex:1;max-width:none}
  .prblem-article-body .prblem-archive-tree-row{min-width:0}
}
@media(max-width:390px){.prblem-article{padding:15px 12px}.prblem-article-body .prblem-code-head{flex-wrap:wrap}}
@media print{.prblem-checklist-section .prblem-checklist{box-shadow:none;border-color:#b7bdc8;break-inside:avoid}}


/* v0.4.4 — Reading Experience Pro: independent sidebar scrolling without a visible track. */
@media (min-width:761px){
  .prblem-leftsidebar{scrollbar-width:none;-ms-overflow-style:none;overscroll-behavior-y:contain}
  .prblem-leftsidebar::-webkit-scrollbar{display:none;width:0;height:0}
}
.prblem-leftsidebar:focus-visible{outline:2px solid var(--blue);outline-offset:2px;border-radius:14px}
/* Five compact, equally-sized sharing actions that fit even narrow sidebars. */
.prblem-rightsidebar .prblem-share{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:5px;max-width:100%}
.prblem-rightsidebar .prblem-share>a,.prblem-rightsidebar .prblem-share>button{
  width:100%;height:auto;aspect-ratio:1;min-width:0;min-height:30px;max-height:39px;
  border:1px solid var(--border);background:var(--surface-soft);color:var(--text);
  display:grid;place-items:center;padding:0;border-radius:50%;font-size:12px;font-weight:750;
}
.prblem-rightsidebar .prblem-share .prblem-svg{width:16px;height:16px}
.prblem-rightsidebar .prblem-share>a:hover,.prblem-rightsidebar .prblem-share>button:hover{background:var(--blue-soft);border-color:var(--blue);color:var(--blue)}
.prblem-share-feedback{display:block;min-height:0;margin-top:8px;color:var(--green);font-size:11px}
.prblem-share-feedback:empty{display:none}
/* A thin, non-blocking article-reading indicator; it never alters document width. */
.prblem-read-position{position:fixed;top:72px;left:0;right:0;height:3px;z-index:44;pointer-events:none;background:transparent}
.prblem-read-position>span{display:block;width:100%;height:100%;background:var(--blue);transform:scaleX(0);transform-origin:left center;will-change:transform}
.admin-bar .prblem-read-position{top:104px}
.prblem-reading-tools{display:flex;align-items:center;flex-wrap:wrap;gap:10px;margin:-6px 0 19px;font-size:12px;color:var(--muted)}
.prblem-reading-tools button{padding:5px 9px;background:var(--surface-soft);border:1px solid var(--border);border-radius:9px;color:var(--blue);font-size:12px;font-weight:700}
.prblem-reading-tools button[hidden]{display:none}
.prblem-steps-overview{display:flex;align-items:center;gap:11px;justify-content:space-between;flex-wrap:wrap;color:var(--muted);font-size:12px;margin:4px 0 14px}
.prblem-steps-overview .prblem-steps-meter{display:block;flex:1 1 90px;max-width:130px;height:6px;background:var(--surface-muted);border-radius:50px;overflow:hidden}
.prblem-steps-overview .prblem-steps-meter i{display:block;height:100%;width:0;background:var(--green);border-radius:50px;transition:width .18s}
.prblem-step-done .prblem-guided-step-num{background:var(--green);box-shadow:none}
.prblem-step-done-toggle{display:inline-flex;align-items:center;gap:5px;background:var(--surface-soft);border:1px solid var(--border);border-radius:7px;padding:5px 9px;margin:0 0 10px;color:var(--muted);font-size:11px;font-weight:700}
.prblem-step-done-toggle[aria-pressed=true]{background:var(--green-soft);color:var(--green);border-color:color-mix(in srgb,var(--green) 24%,var(--border))}
.prblem-inline-copy{display:inline-grid;place-items:center;margin:0 2px 0 5px;padding:2px 4px;border:1px solid var(--border);border-radius:5px;color:var(--muted);background:var(--surface-soft);vertical-align:middle;font-size:10px;font-weight:700;line-height:1.2}
.prblem-inline-copy:hover,.prblem-inline-copy:focus-visible{color:var(--blue);border-color:var(--blue)}
@media(max-width:760px){.prblem-read-position{top:60px}.admin-bar .prblem-read-position{top:106px}.prblem-reading-tools{margin-bottom:15px}}
@media(prefers-reduced-motion:reduce){.prblem-read-position>span,.prblem-steps-overview .prblem-steps-meter i{transition:none}}
@media print{
  @page{margin:15mm}
  html,body,.prblem-docshell,.prblem-article,.prblem-article-main{width:100%!important;max-width:none!important;overflow:visible!important;background:white!important;color:#111827!important;box-shadow:none!important}
  .prblem-read-position,.prblem-reading-tools,.prblem-steps-overview,.prblem-step-done-toggle,.prblem-inline-copy,
  .prblem-article-feedback,.prblem-share-feedback,.prblem-video-facade button,.prblem-archive-search,.prblem-copy,
  .prblem-archive-tools,.prblem-video-controls{display:none!important}
  .prblem-methods [data-method-panel][hidden],.prblem-article-body [data-method-panel][hidden]{display:block!important}
  .prblem-method-tabs{display:none!important}
  .prblem-article-body pre,.prblem-article-body .prblem-code-body,.prblem-article-body table{overflow:visible!important;max-height:none!important;white-space:pre-wrap!important}
  .prblem-code-line code{white-space:pre-wrap!important;overflow-wrap:anywhere!important}
  .prblem-code-box,.prblem-callout,.prblem-checklist-section,.prblem-guided-step{break-inside:avoid-page;page-break-inside:avoid}
  .prblem-article h1,.prblem-article h2,.prblem-article h3{break-after:avoid-page;page-break-after:avoid}
  .prblem-video-facade{display:none!important}
  .prblem-article a{color:#111827!important;text-decoration:underline}
}

/* v0.4.5 — Simple knowledge-base navigation and metadata sharing. */
/* No nested sidebar scrollbar: category navigation and tools are two independent cards. */
@media (min-width:761px){
  .prblem-docshell .prblem-leftsidebar{
    position:static;top:auto;max-height:none;overflow:visible;
    display:grid;gap:16px;align-content:start;scrollbar-width:auto;
  }
  .prblem-leftsidebar .prblem-panel{margin:0;min-width:0}
}
.prblem-leftsidebar .prblem-categories-panel .prblem-aside-categories{min-width:0}
.prblem-leftsidebar .prblem-tools-panel{padding:15px}
.prblem-leftsidebar .prblem-tools-panel .prblem-sidebar-cta{padding:13px 10px 12px;border:0;background:var(--surface-soft)}
/* Icon badges remain compact and use the same lightweight theme SVG set. */
.prblem-article-meta{align-items:center;justify-content:space-between;gap:8px 15px;min-width:0}
.prblem-meta-items{display:flex;align-items:center;gap:9px 12px;flex:1 1 340px;min-width:0;flex-wrap:wrap}
.prblem-article-meta .prblem-chip{display:inline-flex;align-items:center;gap:5px;max-width:100%;white-space:normal}
.prblem-article-meta .prblem-chip .prblem-svg,.prblem-article-meta .prblem-chip svg{width:15px;height:15px;flex:0 0 15px;vertical-align:middle}
.prblem-article-meta .prblem-chip .prblem-svg{display:inline-block}
/* Right-aligned, icon-only actions in the original article metadata row. */
.prblem-share-inline{display:flex;align-items:center;justify-content:flex-end;position:relative;margin-left:auto;flex:0 0 auto;min-width:0}
.prblem-share-inline .prblem-share{display:flex;flex-wrap:nowrap;align-items:center;gap:4px}
.prblem-share-inline .prblem-share>a,.prblem-share-inline .prblem-share>button{
  display:grid;place-items:center;flex:0 0 auto;border:0;border-radius:50%;background:transparent;
  color:var(--muted);width:31px;height:31px;min-width:31px;padding:0;line-height:1;
  font-size:13px;font-weight:750;text-decoration:none;cursor:pointer;
}
.prblem-share-inline .prblem-share svg{width:16px;height:16px}
.prblem-share-inline .prblem-share>a:hover,.prblem-share-inline .prblem-share>button:hover,
.prblem-share-inline .prblem-share>a:focus-visible,.prblem-share-inline .prblem-share>button:focus-visible{
  background:var(--blue-soft);color:var(--blue);outline-offset:2px;
}
.prblem-share-inline .prblem-social-glyph{font:750 13px/1 var(--font);text-transform:none}
.prblem-share-inline .prblem-social-facebook{font:bold 18px/1 Arial,sans-serif}
.prblem-share-inline .prblem-share-feedback:not(:empty){
  position:absolute;right:0;top:calc(100% + 4px);z-index:3;white-space:nowrap;
  margin:0;padding:5px 9px;border:1px solid var(--border);border-radius:7px;
  background:var(--surface);box-shadow:var(--shadow);color:var(--green);
}
@media (max-width:760px){
  .prblem-article-meta{gap:8px 10px}
  .prblem-meta-items{flex:1 1 100%;gap:7px 10px}
  .prblem-share-inline{margin-left:0;justify-content:flex-start}
  .prblem-share-inline .prblem-share>a,.prblem-share-inline .prblem-share>button{
    width:36px;height:36px;min-width:36px;background:var(--surface-soft);border:1px solid var(--border);
  }
}
@media print{.prblem-share-inline{display:none!important}}
/* When the metadata row wraps, never leave a decorative separator at line start. */
.prblem-article-meta .prblem-meta-date{border-left:0;padding-left:0}


/* v0.4.6 - six locally hosted user-supplied share PNGs, compact and accessible. */
.prblem-share-inline{max-width:100%;margin-left:auto;min-width:0}
.prblem-share-inline .prblem-share{display:flex;flex-wrap:nowrap;align-items:center;gap:1px;max-width:100%}
.prblem-share-inline .prblem-share>a,.prblem-share-inline .prblem-share>button{
  width:32px;min-width:32px;height:34px;flex:0 0 32px;
  padding:1px;border:0;background:transparent;border-radius:7px;
  display:inline-flex;align-items:center;justify-content:center;
}
.prblem-share-inline .prblem-share img{
  display:block;width:30px;height:30px;max-width:none;object-fit:contain;
  margin:0;padding:0;border:0;pointer-events:none;
}
.prblem-share-inline .prblem-share>a:hover,.prblem-share-inline .prblem-share>button:hover,
.prblem-share-inline .prblem-share>a:focus-visible,.prblem-share-inline .prblem-share>button:focus-visible{
  background:var(--surface-soft);outline-offset:1px;
}
/* No layout space is reserved when only the top reading progress bar is needed. */
.prblem-reading-tools[hidden]{display:none!important}
.prblem-reading-tools{margin:0 0 12px}
@media(max-width:760px){
  .prblem-share-inline{flex:0 1 auto;margin-left:0;max-width:100%}
  .prblem-share-inline .prblem-share{gap:1px}
  .prblem-share-inline .prblem-share>a,.prblem-share-inline .prblem-share>button{
    width:34px;min-width:34px;height:36px;flex-basis:34px;background:transparent;border:0;padding:1px;
  }
  .prblem-share-inline .prblem-share img{width:32px;height:32px}
}
@media print{.prblem-share-inline{display:none!important}}

/* v0.4.7: high-resolution user-provided social images, rendered at 28px.
   Keep seven compact buttons (including Copy Link) in the article meta; no extra share heading. */
.prblem-share-inline .prblem-share{gap:3px;flex-wrap:nowrap;max-width:100%}
.prblem-share-inline .prblem-share>a,.prblem-share-inline .prblem-share>button{
  box-sizing:border-box;width:30px;min-width:30px;height:32px;flex:0 0 30px;
  padding:1px;border:0;background:transparent;border-radius:6px;
  display:inline-flex;align-items:center;justify-content:center;
}
.prblem-share-inline .prblem-share img{
  display:block;width:28px;height:28px;max-width:none;object-fit:contain;image-rendering:auto;
  margin:0;padding:0;border:0;pointer-events:none;
}
@media(max-width:760px){
  .prblem-share-inline .prblem-share{gap:3px}
  .prblem-share-inline .prblem-share>a,.prblem-share-inline .prblem-share>button{
    box-sizing:border-box;width:30px;min-width:30px;height:32px;flex-basis:30px;
    border:0;background:transparent;padding:1px;
  }
  .prblem-share-inline .prblem-share img{width:28px;height:28px}
}
@media print{.prblem-share-inline{display:none!important}}


/* v0.4.8: compact social share icons with integer 4:1 source-to-CSS ratio.
   User-provided logos are selectively sharpened for clearer small-size display.
   Copy uses a crisp inline vector symbol instead of the mismatched arrow graphic. */
.prblem-share-inline .prblem-share{gap:3px;align-items:center;flex-wrap:nowrap;max-width:100%}
.prblem-share-inline .prblem-share>a,
.prblem-share-inline .prblem-share>button{
  display:inline-flex;align-items:center;justify-content:center;
  box-sizing:border-box;width:34px;min-width:34px;height:34px;flex:0 0 34px;
  padding:1px;background:transparent;border:0;border-radius:7px;
  line-height:1;cursor:pointer;transition:background-color .15s ease;
}
.prblem-share-inline .prblem-share img{
  display:block;width:32px;height:32px;max-width:none;object-fit:contain;
  image-rendering:auto;opacity:1;filter:none;transform:none;
  pointer-events:none;
}
.prblem-share-inline .prblem-share>button.prblem-share-copy{
  background:linear-gradient(145deg,#3b7bf4,#2354c9);color:#fff;
  width:32px;min-width:32px;height:32px;flex:0 0 32px;
  padding:0;border-radius:6px;margin:0 1px;
}
.prblem-share-inline .prblem-share>button.prblem-share-copy .prblem-svg{
  display:block;width:21px;height:21px;stroke:currentColor;stroke-width:2;
}
.prblem-share-inline .prblem-share>button.prblem-share-copy:hover,
.prblem-share-inline .prblem-share>button.prblem-share-copy:focus-visible{
  background:linear-gradient(145deg,#285fe0,#193fa5);
}
@media(max-width:760px){
  .prblem-share-inline .prblem-share{gap:3px}
  .prblem-share-inline .prblem-share>a,
  .prblem-share-inline .prblem-share>button{
    width:34px;min-width:34px;height:34px;flex-basis:34px;padding:1px;border:0;background:transparent;
  }
  .prblem-share-inline .prblem-share img{width:32px;height:32px}
  .prblem-share-inline .prblem-share>button.prblem-share-copy{
    width:32px;min-width:32px;height:32px;flex-basis:32px;padding:0;
    background:linear-gradient(145deg,#3b7bf4,#2354c9);
  }
}
@media print{.prblem-share-inline{display:none!important}}

/* PRBLEM v0.4.9: compact ONLY the home advertisement-to-solutions transition.
 * Do not change the gap above the banner, and do not collapse other ad placements.
 * Ads remain normal-flow elements so delayed Ad Inserter units are never overlaid.
 */
.prblem-home-wrap > #tools + .prblem-ad{margin-bottom:4px}
/* Works with the native PRBLEM slot and Ad Inserter placements, which can
 * add their own wrapper element between #tools and #solutions. */
.prblem-home-wrap > #solutions{padding-top:18px}
@media(max-width:760px){
  .prblem-home-wrap > #solutions{padding-top:14px}
}

/* v0.5.0 - Compact step headers and optically centered completion check.
 * Keep existing markup, saved progress state and accessible button semantics.
 * The check uses a centered SVG background (not an off-baseline font glyph).
 */
.prblem-guided-step-num{position:relative;display:grid;place-items:center;text-align:center;line-height:1}
.prblem-step-done .prblem-guided-step-num{font-size:0}
.prblem-step-done .prblem-guided-step-num::after{
  content:"";position:absolute;inset:0;display:block;
  background-repeat:no-repeat;background-position:center center;background-size:22px 22px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24'%3E%3Cpath d='M5 12.5l4.6 4.6L19 7.7' fill='none' stroke='%23fff' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
}
.prblem-step-heading{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:6px 12px;min-width:0;margin:0 0 9px;
}
.prblem-article-body .prblem-step-heading>h3{
  flex:1 1 175px;min-width:0;margin:0;
}
.prblem-step-heading>.prblem-step-done-toggle{
  flex:0 0 auto;margin:0;padding:6px 10px;min-height:31px;
  white-space:nowrap;font-size:11px;line-height:1.2;
}
.prblem-step-heading>.prblem-step-done-toggle:focus-visible{outline-offset:3px}
/* Tighten steps only within the guided series, not paragraphs or callout cards. */
.prblem-guided-steps{row-gap:17px}
@media(max-width:760px){
  .prblem-step-done .prblem-guided-step-num::after{background-size:19px 19px}
  .prblem-step-heading{gap:6px 8px;margin-bottom:7px}
  .prblem-article-body .prblem-step-heading>h3{flex-basis:120px}
  .prblem-step-heading>.prblem-step-done-toggle{min-height:30px;padding:5px 8px}
}
@media print{.prblem-step-heading>.prblem-step-done-toggle{display:none!important}}

/* Search & Content Discovery Pro 0.5.1: compact, readable sorting and no-result recovery. */
.prblem-sort-controls{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:-9px 0 27px;font-size:12px;color:var(--muted)}
.prblem-sort-controls a{color:var(--text);background:var(--surface);border:1px solid var(--border);padding:6px 12px;border-radius:8px;font-weight:650}
.prblem-sort-controls a:hover,.prblem-sort-controls a.is-active{color:var(--blue);background:var(--blue-soft);border-color:#9db6f4}
.prblem-discovery-actions{display:flex;flex-wrap:wrap;gap:8px;margin-top:15px}
.prblem-no-results .prblem-discovery-actions a{border:1px solid var(--border);border-radius:9px;padding:8px 12px;background:var(--surface-soft);font-size:12px}
.prblem-no-results .prblem-discovery-actions a:hover{border-color:var(--blue);background:var(--blue-soft)}
@media(max-width:390px){.prblem-sort-controls{margin-top:5px}.prblem-sort-controls a{padding:6px 9px}.prblem-discovery-actions{align-items:stretch}}

.prblem-search-page .prblem-guide-card mark{background:var(--blue-soft);color:var(--blue);border-radius:3px;padding:0 1px;font-weight:800;box-decoration-break:clone}

/* PRBLEM 0.6.0 — category discovery and clearly separated secondary content */
.prblem-category-discovery{display:flex;align-items:center;gap:15px;padding:16px 18px;margin:16px 0 22px;border:1px solid var(--border);border-radius:14px;background:var(--surface);min-width:0}
.prblem-discovery-icon{background:var(--blue-soft);color:var(--blue);width:42px;height:42px;border-radius:11px;display:grid;place-items:center;flex:0 0 auto}
.prblem-category-discovery>span:nth-child(2){flex:1;min-width:0}.prblem-category-discovery strong{display:block;font-size:15px}.prblem-category-discovery small{display:block;font-size:12px;color:var(--muted)}
.prblem-category-discovery a{color:var(--blue);font-weight:700;font-size:13px;flex:0 0 auto}
.prblem-secondary-solutions{padding-top:27px;margin-top:30px;border-top:1px solid var(--border)}
.prblem-secondary-solutions .prblem-section-head h2{font-size:22px}
.prblem-related-card{background:var(--surface-soft)}
@media(max-width:620px){.prblem-category-discovery{flex-wrap:wrap;gap:10px}.prblem-category-discovery a{margin-left:52px}.prblem-secondary-solutions .prblem-guide-card{min-width:0}}

/* PRBLEM 1.0 — measured, conservative accessibility/layout protections. */
.prblem-core :focus-visible{outline:3px solid #2456f5;outline-offset:3px}
.prblem-article-body, .prblem-article, .prblem-docshell, .prblem-search-page{min-width:0}
.prblem-article-body pre, .prblem-article-body .prblem-code-body{max-width:100%;overflow-x:auto;overscroll-behavior-x:contain}
.prblem-article-body img, .prblem-article-body iframe, .prblem-article-body video{max-width:100%}
.prblem-article-body table{display:block;max-width:100%;overflow-x:auto}
.prblem-skip:focus-visible{position:fixed;left:12px;top:12px;z-index:99999;background:#fff;color:#123dbe;padding:10px 14px;border-radius:7px}
@media (forced-colors:active){.prblem-core :focus-visible{outline:3px solid Highlight}.prblem-status,.prblem-difficulty{border:1px solid CanvasText}}
@media print{.prblem-search-actions,.prblem-reading-progress,.prblem-share,.prblem-step-complete,.prblem-step-completed-toggle{display:none!important}.prblem-article-body pre,.prblem-code-body{white-space:pre-wrap!important;overflow:visible!important;max-height:none!important;break-inside:avoid}.prblem-callout{break-inside:avoid}}

/* PRBLEM 1.1.x - Classic compact portal layout, modern readable typography.
 * GameFAQs-inspired density without the hard-to-read typewriter typeface.
 * No remote font requests. Monospace remains exclusively for code and paths.
 */
:root{
  --font:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;
  --headfont:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',Arial,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Consolas,'Liberation Mono',monospace;
}
body.prblem-core{font-family:var(--font);font-size:15px;line-height:1.62;-webkit-font-smoothing:antialiased}
.prblem-core h1,.prblem-core h2,.prblem-core h3,.prblem-core h4{letter-spacing:-.012em;overflow-wrap:break-word}
.prblem-core button,.prblem-core input,.prblem-core select,.prblem-core textarea{font-family:var(--font)}
.prblem-core .prblem-header-nav a{font-size:12px}
.prblem-core .prblem-brand{letter-spacing:-.03em;font-weight:800;font-size:22px}
.prblem-core .prblem-article>h1{font-size:clamp(25px,2.8vw,36px);line-height:1.26;letter-spacing:-.024em}
.prblem-core .prblem-article-body{line-height:1.72;overflow-wrap:anywhere}
.prblem-core .prblem-article-body h2{line-height:1.4}
.prblem-core .prblem-article-body pre,.prblem-core .prblem-code-body{font-family:var(--mono)}
/* A centered, shorter search hero rather than a full-screen splash. */
.prblem-home-portal .prblem-home-hero{padding:46px 16px 36px}
.prblem-home-portal .prblem-home-hero-inner{max-width:920px}
.prblem-home-portal .prblem-home-hero h1{font-size:clamp(27px,3.5vw,43px);line-height:1.18;letter-spacing:-.035em;margin:9px 0}
.prblem-home-portal .prblem-home-hero p{font-size:14px;margin:0 0 17px}
.prblem-home-portal .prblem-search-hero{max-width:790px;border-radius:12px;padding:7px 8px 7px 14px}
.prblem-home-portal .prblem-search-hero button{border-radius:8px}
.prblem-home-portal .prblem-popular{margin-top:12px;gap:6px;font-size:12px}
.prblem-home-portal .prblem-popular a{border-radius:7px;padding:3px 9px}
.prblem-home-portal .prblem-home-wrap{width:min(100% - 40px,1320px)}
/* Quick navigation, reminiscent of a text-centric portal index. */
.prblem-portal-jump{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;margin:22px 0 17px}
.prblem-portal-jump>a{display:flex;gap:11px;align-items:center;min-width:0;border:1px solid var(--border);border-radius:9px;padding:13px;background:var(--surface);box-shadow:var(--shadow)}
.prblem-portal-jump>a>span:nth-child(2){min-width:0;flex:1}
.prblem-portal-jump strong{font-size:13px;display:block;line-height:1.35}
.prblem-portal-jump small{display:block;font-size:11px;color:var(--muted);line-height:1.4;margin-top:2px;overflow-wrap:anywhere}
.prblem-portal-jump-icon{width:35px;height:35px;border-radius:7px;background:var(--blue-soft);color:var(--blue);display:grid;place-items:center;flex:0 0 35px}
.prblem-portal-jump>a>.prblem-svg{width:15px;height:15px;color:var(--muted);flex:0 0 15px}
.prblem-portal-jump a:hover,.prblem-portal-jump a:focus-visible{border-color:var(--blue);background:var(--blue-soft)}
/* Two-column desktop portal: latest guides/tools on the left; topics/help on right. */
.prblem-portal-columns{display:grid;grid-template-columns:minmax(0,1.9fr) minmax(295px,.9fr);gap:18px;align-items:start;min-width:0}
.prblem-portal-primary,.prblem-portal-rail{display:grid;gap:18px;min-width:0;align-content:start}
.prblem-home-portal .prblem-home-section{padding:0;min-width:0;scroll-margin-top:88px}
.prblem-home-portal .prblem-portal-panel{border:1px solid var(--border);background:var(--surface);border-radius:10px;padding:18px 19px;min-width:0;box-shadow:var(--shadow)}
.prblem-home-portal .prblem-section-head{padding-bottom:10px;margin-bottom:12px;border-bottom:2px solid var(--blue);align-items:center}
.prblem-home-portal .prblem-section-head h2{font-size:19px;line-height:1.3;margin:2px 0;letter-spacing:-.03em}
.prblem-home-portal .prblem-section-head p{font-size:12px;line-height:1.5}
.prblem-home-portal .prblem-eyebrow{font-size:10px;letter-spacing:.08em}
.prblem-home-portal .prblem-tools-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0;border:1px solid var(--border);border-bottom:0;border-radius:7px;overflow:hidden}
.prblem-home-portal .prblem-tool-card{border:0;border-bottom:1px solid var(--border);border-radius:0;min-height:49px;padding:9px 12px;font-size:12px;line-height:1.35;gap:10px;box-shadow:none;transform:none}
.prblem-home-portal .prblem-tool-card:nth-child(4n+3),.prblem-home-portal .prblem-tool-card:nth-child(4n+4){background:var(--surface-soft)}
.prblem-home-portal .prblem-tool-card:hover{background:var(--blue-soft);color:var(--blue)}
.prblem-home-portal .prblem-tool-card img,.prblem-home-portal .prblem-tool-card>.prblem-svg{height:22px;width:22px;flex:0 0 22px}
.prblem-home-portal .prblem-tool-card b{font-size:17px}
.prblem-home-portal .prblem-category-grid{grid-template-columns:minmax(0,1fr);gap:0;border:1px solid var(--border);border-radius:7px;overflow:hidden}
.prblem-home-portal .prblem-category-card{min-height:57px;gap:10px;border:0;border-bottom:1px solid var(--border);border-radius:0;padding:9px 10px;background:var(--surface);min-width:0}
.prblem-home-portal .prblem-category-card:nth-child(even){background:var(--surface-soft)}
.prblem-home-portal .prblem-category-card:last-child{border-bottom:0}
.prblem-home-portal .prblem-category-card:hover{background:var(--blue-soft)}
.prblem-home-portal .prblem-category-symbol{width:34px;height:34px;border-radius:6px;flex:0 0 34px}
.prblem-home-portal .prblem-category-symbol .prblem-svg{width:21px;height:21px}
.prblem-home-portal .prblem-category-card>span:nth-child(2){min-width:0}
.prblem-home-portal .prblem-category-card strong{font-size:12px;line-height:1.3;overflow-wrap:anywhere}
.prblem-home-portal .prblem-category-card small{font-size:10px;line-height:1.35;margin-top:1px}
.prblem-home-portal .prblem-category-card b{font-size:16px;flex:0 0 auto}
/* Dense, alternating topic rows; headings are still linked to real WP posts. */
.prblem-home-portal .prblem-home-feed-filters{margin:0 0 12px;gap:7px}
.prblem-home-portal .prblem-home-feed-filters a{font-size:11px;padding:6px 10px;border-radius:6px}
.prblem-portal-guide-list{border:1px solid var(--border);border-radius:7px;overflow:hidden}
.prblem-portal-guide{display:flex;align-items:flex-start;gap:10px;min-width:0;padding:12px 11px;border-bottom:1px solid var(--border);background:var(--surface)}
.prblem-portal-guide:nth-child(even){background:var(--surface-soft)}
.prblem-portal-guide:last-child{border-bottom:0}
.prblem-portal-guide:hover{background:var(--blue-soft)}
.prblem-portal-guide-icon{flex:0 0 32px;width:32px;height:32px;display:grid;place-items:center;background:var(--blue-soft);color:var(--blue);border-radius:5px}
.prblem-portal-guide-icon svg{width:18px;height:18px}
.prblem-portal-guide-copy{flex:1;min-width:0;overflow-wrap:anywhere}
.prblem-portal-guide h3{font-size:13px;margin:0 0 4px;line-height:1.4;font-weight:800}
.prblem-portal-guide h3 a{color:var(--blue)}
.prblem-portal-guide p{margin:0 0 3px;font-size:11px;line-height:1.5;color:var(--text)}
.prblem-portal-guide small{display:block;color:var(--muted);font-size:10px;line-height:1.35}
.prblem-portal-guide-go{color:var(--blue);font-size:17px;flex:0 0 auto;padding:0 2px}
.prblem-portal-help p{font-size:12px;line-height:1.6;color:var(--muted)}
.prblem-portal-help-actions{display:flex;flex-wrap:wrap;gap:7px}
.prblem-portal-help-actions .prblem-search-action{font-size:11px;padding:8px 9px}
/* Advertisements stay in normal document flow. No fixed-height placeholders. */
.prblem-portal-primary>.prblem-ad{max-width:100%;min-width:0;margin:0 auto;overflow:visible}
/* Adapt gently for small laptops/tablets, then stack and prioritize topics on phones. */
@media(max-width:1100px){
 .prblem-portal-columns{grid-template-columns:minmax(0,1.5fr) minmax(270px,.85fr);gap:12px}
 .prblem-home-portal .prblem-portal-panel{padding:14px}
 .prblem-home-portal .prblem-home-wrap{width:min(100% - 28px,1320px)}
}
@media(max-width:790px){
 .prblem-home-portal .prblem-home-hero{padding:33px 12px 26px}
 .prblem-home-portal .prblem-home-hero h1{font-size:clamp(26px,5.3vw,35px)}
 .prblem-portal-columns{grid-template-columns:minmax(0,1fr)}
 .prblem-portal-rail{order:-1;display:contents}
 .prblem-portal-rail>#solutions{order:-1}
 .prblem-portal-rail>.prblem-portal-help{order:2}
 .prblem-portal-primary{display:contents}
 .prblem-portal-primary>#tools{order:0}
 .prblem-portal-primary>#latest{order:1}
 .prblem-portal-primary>.prblem-ad{order:1}
 .prblem-home-portal .prblem-category-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:0}
 .prblem-home-portal .prblem-category-card:nth-child(even){background:var(--surface)}
 .prblem-home-portal .prblem-category-card:nth-child(4n+3),.prblem-home-portal .prblem-category-card:nth-child(4n+4){background:var(--surface-soft)}
 .prblem-home-portal .prblem-category-card{border-right:1px solid var(--border)}
 .prblem-home-portal .prblem-category-card:nth-child(even){border-right:0}
}
@media(max-width:590px){
 .prblem-portal-jump{grid-template-columns:1fr;gap:7px;margin:14px 0 12px}
 .prblem-portal-jump>a{padding:9px 10px}
 .prblem-portal-jump-icon{width:30px;height:30px;flex-basis:30px}
 .prblem-portal-jump small{display:none}
 .prblem-home-portal .prblem-home-wrap{width:calc(100% - 20px)}
 .prblem-home-portal .prblem-portal-panel{padding:12px}
 .prblem-home-portal .prblem-section-head h2{font-size:17px}
 .prblem-home-portal .prblem-category-grid{grid-template-columns:1fr}
 .prblem-home-portal .prblem-category-card,.prblem-home-portal .prblem-category-card:nth-child(even),.prblem-home-portal .prblem-category-card:nth-child(4n+3){background:var(--surface);border-right:0}
 .prblem-home-portal .prblem-category-card:nth-child(even){background:var(--surface-soft)}
 .prblem-home-portal .prblem-tools-grid{grid-template-columns:1fr}
 .prblem-home-portal .prblem-tool-card:nth-child(n){background:var(--surface)}
 .prblem-home-portal .prblem-tool-card:nth-child(even){background:var(--surface-soft)}
 .prblem-home-portal .prblem-tool-card:hover{background:var(--blue-soft)}
 .prblem-home-portal .prblem-search-hero{gap:7px}
 .prblem-home-portal .prblem-search-hero button{padding:11px 10px;font-size:12px}
 .prblem-home-portal .prblem-search-hero input{font-size:12px}
 .prblem-home-portal .prblem-search-hero .prblem-svg{width:17px;flex:0 0 17px}
 .prblem-portal-guide{padding:10px 8px;gap:8px}
 .prblem-portal-guide-icon{width:28px;height:28px;flex-basis:28px}
}
@media(max-width:360px){
 .prblem-portal-guide-icon{display:none}
 .prblem-portal-guide h3{font-size:12px}
 .prblem-home-portal .prblem-search-hero input{font-size:11px}
}
@media print{
 .prblem-portal-jump,.prblem-portal-help,.prblem-portal-rail{display:none!important}
 .prblem-portal-columns{display:block}
 .prblem-home-portal .prblem-portal-panel{box-shadow:none}
}


/* PRBLEM v1.1.1 - single homepage search, live WordPress category navigation.
   No changes to the sitewide search form on article/search/other pages. */
.prblem-core .prblem-header-quicknav{
  position:relative;display:flex;align-items:center;justify-content:center;
  flex:1 1 auto;min-width:0;gap:clamp(7px,1.1vw,17px);margin:0 auto;
  font-size:12px;line-height:1.3;white-space:nowrap;
}
.prblem-header-quicknav .prblem-quicknav-label{color:var(--muted);font-size:11px}
.prblem-header-quicknav .prblem-quicknav-link{display:inline-flex;align-items:center;min-height:36px;font-weight:700;color:var(--text);border-radius:6px;padding:6px 3px}
.prblem-header-quicknav .prblem-quicknav-link:hover,.prblem-header-quicknav .prblem-quicknav-link:focus-visible{color:var(--blue);background:var(--blue-soft)}
.prblem-header-browse{position:relative;flex:0 0 auto}
.prblem-header-browse>summary{display:flex;align-items:center;gap:4px;min-height:36px;padding:6px 9px;border:1px solid var(--border);border-radius:8px;color:var(--text);font-weight:700;cursor:pointer;list-style:none}
.prblem-header-browse>summary::-webkit-details-marker,.prblem-mobile-browse>summary::-webkit-details-marker{display:none}
.prblem-header-browse>summary:hover,.prblem-header-browse[open]>summary{background:var(--blue-soft);border-color:var(--blue)}
.prblem-header-browse>summary>.prblem-svg,.prblem-mobile-browse>summary>.prblem-svg{height:13px;width:13px;transition:transform .15s}
.prblem-header-browse[open]>summary>.prblem-svg,.prblem-mobile-browse[open]>summary>.prblem-svg{transform:rotate(180deg)}
.prblem-header-browse-list{position:absolute;right:0;top:calc(100% + 9px);width:260px;max-width:min(90vw,320px);max-height:min(460px,70vh);overflow-y:auto;background:var(--surface);color:var(--text);border:1px solid var(--border);border-radius:10px;padding:6px;box-shadow:0 14px 30px rgba(0,0,0,.2);z-index:65;display:grid;gap:2px}
.prblem-header-browse-list a{white-space:normal;font-size:12px;line-height:1.45;padding:9px 11px;border-radius:6px}
.prblem-header-browse-list a:hover,.prblem-header-browse-list a:focus-visible{color:var(--blue);background:var(--blue-soft)}
.prblem-core .prblem-header-quicknav:focus-within{z-index:66}
.prblem-mobile-browse{display:none}
@media(max-width:1280px){
 .prblem-core .prblem-header-quicknav{gap:8px}
 .prblem-header-quicknav .prblem-quicknav-label{display:none}
 .prblem-header-quicknav .prblem-quicknav-link{font-size:11px}
 .prblem-header-inner:has(.prblem-header-quicknav){gap:15px;padding:0 18px}
}
@media(max-width:1120px){
 .prblem-header-quicknav .prblem-quicknav-link:nth-of-type(n+3){display:none}
}
@media(max-width:890px){
 .prblem-header-quicknav .prblem-quicknav-link{display:none}
}
@media(max-width:760px){
 .prblem-core .prblem-header-quicknav{display:none}
 .prblem-mobile-menu.is-open .prblem-mobile-browse{display:block;border-top:1px solid var(--border);padding-top:6px}
 .prblem-mobile-browse>summary{cursor:pointer;display:flex;align-items:center;justify-content:space-between;list-style:none;padding:10px 5px;font-size:14px;font-weight:700;color:var(--text)}
 .prblem-mobile-browse-list{display:grid;gap:2px;padding:4px 0 8px 12px;max-height:55vh;overflow-y:auto}
 .prblem-mobile-browse-list a{font-size:13px;line-height:1.4;min-height:36px;padding:9px;border-radius:6px;white-space:normal;overflow-wrap:anywhere}
 .prblem-mobile-browse-list a:hover,.prblem-mobile-browse-list a:focus-visible{background:var(--blue-soft);color:var(--blue)}
}


/* v1.1.1 typography refinement: clean system sans for reading; monospace only for technical syntax. */
.prblem-core .prblem-portal-guide h3{font-size:14px;line-height:1.42}
.prblem-core .prblem-portal-guide p{font-size:12px;line-height:1.56}
.prblem-core .prblem-portal-guide small{font-size:11px}
.prblem-core .prblem-home-portal .prblem-tool-card{font-size:13px}
.prblem-core .prblem-home-portal .prblem-category-card strong{font-size:13px}
.prblem-core .prblem-home-portal .prblem-category-card small{font-size:11px}
.prblem-core .prblem-header-quicknav .prblem-quicknav-link{font-size:12px}
.prblem-core .prblem-home-portal .prblem-home-hero p{font-size:15px}
.prblem-core .prblem-article-body :is(pre,code,kbd,samp),
.prblem-core .prblem-code-body,
.prblem-core .prblem-code-header{font-family:var(--mono)}
@media(max-width:590px){
  .prblem-core .prblem-portal-guide h3{font-size:13px}
  .prblem-core .prblem-home-portal .prblem-tool-card{font-size:12px}
}

/* PRBLEM v1.2.0: clearer IA, accessible solution directory, full-width guide feed. */
.prblem-core .prblem-header-quicknav{gap:clamp(10px,1.6vw,26px)}
.prblem-header-quicknav .prblem-mainnav-link{display:inline-flex;align-items:center;min-height:38px;padding:6px 4px;font-size:13px;font-weight:700;color:var(--text);border-radius:6px}
.prblem-header-quicknav .prblem-mainnav-link:hover,.prblem-header-quicknav .prblem-mainnav-link:focus-visible{color:var(--blue);background:var(--blue-soft)}
.prblem-header-quicknav .prblem-header-browse>summary{gap:7px;padding:8px 11px;font-size:13px;min-height:39px}
.prblem-header-quicknav .prblem-header-browse>summary>.prblem-svg:first-child{width:16px;height:16px;color:var(--blue)}
.prblem-header-quicknav .prblem-header-browse>summary>.prblem-svg:last-child{width:13px;height:13px}
.prblem-header-quicknav .prblem-header-browse-list{left:0;right:auto;width:min(285px,90vw);max-height:min(470px,70dvh)}
.prblem-header-browse:not([open])>.prblem-header-browse-list{display:none}
.prblem-header-browse-list .prblem-header-browse-all{display:flex;justify-content:space-between;align-items:center;font-weight:800;color:var(--blue);background:var(--blue-soft);margin-bottom:3px}
.prblem-header-browse-all .prblem-svg{width:15px;height:15px}
.prblem-home-portal .prblem-popular{scroll-margin-top:95px}
.prblem-home-portal .prblem-popular a{display:inline-flex;min-height:28px;align-items:center}
.prblem-home-portal .prblem-popular a:hover,.prblem-home-portal .prblem-popular a:focus-visible{background:var(--blue-soft);border-color:var(--blue);color:var(--blue)}
/* The three quick-access actions share identical card styling and focus affordances. */
.prblem-portal-jump>a,.prblem-portal-jump>button{display:flex;gap:11px;align-items:center;min-width:0;width:100%;border:1px solid var(--border);border-radius:9px;padding:13px;background:var(--surface);box-shadow:var(--shadow);text-align:left;color:var(--text);cursor:pointer}
.prblem-portal-jump>button{font-family:inherit}
.prblem-portal-jump>a>span:nth-child(2),.prblem-portal-jump>button>span:nth-child(2){min-width:0;flex:1}
.prblem-portal-jump>a>.prblem-svg,.prblem-portal-jump>button>.prblem-svg{width:15px;height:15px;color:var(--muted);flex:0 0 15px}
.prblem-portal-jump>a:hover,.prblem-portal-jump>a:focus-visible,.prblem-portal-jump>button:hover,.prblem-portal-jump>button:focus-visible{border-color:var(--blue);background:var(--blue-soft)}
/* Only tools/topics live in the asymmetric columns; latest content fills both widths below. */
.prblem-home-portal .prblem-portal-latest{margin-top:18px}
.prblem-home-portal .prblem-portal-guide-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));align-items:stretch}
.prblem-home-portal .prblem-portal-guide{border-right:1px solid var(--border);border-bottom:1px solid var(--border);height:100%;padding:14px;gap:12px}
.prblem-home-portal .prblem-portal-guide:nth-child(2n){border-right:0}
.prblem-home-portal .prblem-portal-guide:last-child{border-bottom:0}
.prblem-home-portal .prblem-portal-guide:nth-last-child(2){border-bottom:0}
.prblem-home-portal .prblem-portal-guide-list>.prblem-empty{grid-column:1/-1}
.prblem-portal-guide-more{display:flex;justify-content:center;margin-top:16px}
.prblem-portal-guide-more a{display:inline-flex;align-items:center;gap:7px;border:1px solid var(--border);border-radius:9px;padding:9px 16px;background:var(--surface-soft);color:var(--blue);font-size:12px;font-weight:800}
.prblem-portal-guide-more a:hover,.prblem-portal-guide-more a:focus-visible{background:var(--blue-soft);border-color:var(--blue)}
.prblem-portal-guide-more .prblem-svg{width:14px;height:14px}
.prblem-home-portal .prblem-home-wrap{padding-bottom:32px}
@media(max-width:1100px){
  .prblem-core .prblem-header-quicknav{gap:12px}
  .prblem-header-quicknav .prblem-mainnav-link,.prblem-header-quicknav .prblem-header-browse>summary{font-size:12px}
}
@media(max-width:900px){
  .prblem-header-quicknav .prblem-mainnav-link{padding:6px 1px}
  .prblem-header-quicknav .prblem-header-browse>summary{padding:7px}
  .prblem-core .prblem-header-quicknav{gap:8px}
  .prblem-home-portal .prblem-portal-guide{padding:11px;gap:9px}
}
@media(max-width:790px){
  .prblem-home-portal .prblem-portal-latest{margin-top:12px}
  .prblem-home-portal .prblem-portal-guide-list{grid-template-columns:minmax(0,1fr)}
  .prblem-home-portal .prblem-portal-guide:nth-child(n){border-right:0;border-bottom:1px solid var(--border)}
  .prblem-home-portal .prblem-portal-guide:last-child{border-bottom:0}
}
@media(max-width:590px){
  .prblem-portal-jump>button,.prblem-portal-jump>a{padding:9px 10px}
  .prblem-home-portal .prblem-portal-guide{padding:11px 9px}
}
@media print{.prblem-portal-guide-more{display:none}}

/* v1.6.2: smaller share artwork on articles. Keep meaningful pointer/focus targets. */
body.prblem-core .prblem-share-inline .prblem-share{gap:2px}
body.prblem-core .prblem-share-inline .prblem-share>a,
body.prblem-core .prblem-share-inline .prblem-share>button{
  box-sizing:border-box;width:28px;min-width:28px;height:30px;flex:0 0 28px;
  padding:2px;border:0;background:transparent;border-radius:5px;
  display:inline-flex;align-items:center;justify-content:center;
}
body.prblem-core .prblem-share-inline .prblem-share img{
  display:block;width:23px;height:23px;max-width:23px;max-height:23px;
  object-fit:contain;pointer-events:none;
}
body.prblem-core .prblem-share-inline .prblem-share svg{width:14px;height:14px}
@media(max-width:760px){
  body.prblem-core .prblem-share-inline .prblem-share>a,
  body.prblem-core .prblem-share-inline .prblem-share>button{
    width:34px;min-width:34px;height:36px;flex-basis:34px;
  }
  body.prblem-core .prblem-share-inline .prblem-share img{width:23px;height:23px}
}

/* PRBLEM v1.6.8 - legible copy button in light and dark modes, even with compact
   social icon rules from prior versions. Preserve native share/copy behavior. */
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy {
  background:#185aab;
  color:#fff;
  border:1px solid #164d92;
  border-radius:5px;
  box-shadow:0 1px 2px rgba(0,0,0,.16);
  padding:0;
  width:29px;
  min-width:29px;
  height:30px;
  flex:0 0 29px;
  opacity:1;
}
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy .prblem-svg {
  width:17px;
  height:17px;
  stroke:#fff;
  stroke-width:2.2;
  fill:none;
  opacity:1;
}
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:hover,
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:focus-visible {
  background:#0e468e;
  color:#fff;
  border-color:#08396e;
}
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:focus-visible {
  outline:2px solid #f7bf43;
  outline-offset:2px;
}
html[data-mode=dark] body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy {
  background:#326abd;
  color:#fff;
  border-color:#80aaf0;
}
html[data-mode=dark] body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:hover,
html[data-mode=dark] body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:focus-visible {
  background:#457bd3;
  border-color:#a1c7ff;
}

/* Article meta uses compact line icons, not oversized category platform logos. */
body.prblem-core .prblem-article-meta .prblem-chip--blue {
  display:inline-flex;
  align-items:center;
  gap:6px;
  white-space:nowrap;
}
body.prblem-core .prblem-article-meta .prblem-chip--blue .prblem-article-platform-icon,
body.prblem-core .prblem-article-meta .prblem-chip--blue>.prblem-svg {
  width:16px;
  height:16px;
  flex:0 0 16px;
  stroke-width:1.9;
}
body.prblem-core .prblem-article-meta .prblem-chip--blue .prblem-category-custom-icon,
body.prblem-core .prblem-article-meta .prblem-chip--blue .prblem-platform-category-logo {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:16px;
  height:16px;
  background:none;
  border:0;
  padding:0;
  flex:0 0 16px;
}
body.prblem-core .prblem-article-meta .prblem-chip--blue .prblem-category-custom-icon img,
body.prblem-core .prblem-article-meta .prblem-chip--blue .prblem-platform-category-logo img {
  width:16px;
  height:16px;
  object-fit:contain;
}

/* Consistent WP archive paging: clear current page, keyboard focus and mobile wrap. */
body.prblem-core .prblem-list-wrap .navigation.pagination {
  margin:24px auto 34px;
  width:100%;
  clear:both;
}
body.prblem-core .prblem-list-wrap .navigation.pagination .nav-links {
  display:flex;
  justify-content:center;
  align-items:center;
  flex-wrap:wrap;
  gap:6px;
}
body.prblem-core .prblem-list-wrap .navigation.pagination .page-numbers {
  box-sizing:border-box;
  display:inline-flex;
  justify-content:center;
  align-items:center;
  min-width:34px;
  min-height:35px;
  padding:6px 11px;
  background:#f3f4f5;
  border:1px solid #aeb8c1;
  border-radius:4px;
  color:#174b75;
  font:700 12px/1.3 var(--font);
  text-decoration:none;
  transition:background .15s ease,border-color .15s ease;
}
body.prblem-core .prblem-list-wrap .navigation.pagination .page-numbers.current {
  background:#155a97;
  color:#fff;
  border-color:#155a97;
  box-shadow:inset 0 -2px 0 rgba(0,0,0,.15);
}
body.prblem-core .prblem-list-wrap .navigation.pagination a.page-numbers:hover {
  background:#dceafa;
  color:#0c426f;
  border-color:#3982be;
}
body.prblem-core .prblem-list-wrap .navigation.pagination a.page-numbers:focus-visible {
  outline:2px solid #2c76ba;
  outline-offset:2px;
}
body.prblem-core .prblem-list-wrap .navigation.pagination .page-numbers.dots {
  border-color:transparent;
  background:transparent;
  color:var(--muted);
}
html[data-mode=dark] body.prblem-core .prblem-list-wrap .navigation.pagination .page-numbers {
  color:#d5e8ff;
  border-color:#67747d;
  background:#3d4348;
}
html[data-mode=dark] body.prblem-core .prblem-list-wrap .navigation.pagination .page-numbers.current {
  background:#2264a0;
  color:#fff;
  border-color:#81b1e1;
}
html[data-mode=dark] body.prblem-core .prblem-list-wrap .navigation.pagination a.page-numbers:hover {
  background:#385975;
  color:#fff;
}
html[data-mode=dark] body.prblem-core .prblem-list-wrap .navigation.pagination .page-numbers.dots {
  background:transparent;
  border-color:transparent;
}
@media(max-width:600px) {
  body.prblem-core .prblem-list-wrap .navigation.pagination .nav-links{gap:5px}
  body.prblem-core .prblem-list-wrap .navigation.pagination .page-numbers{min-width:32px;min-height:34px;padding:6px 8px}
}

/* PRBLEM v1.6.9: Compact Copy button; same footprint as every other social icon.
   Keep a blue outline on the light canvas without the previous heavy tile. */
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy,
html[data-mode=dark] body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy {
  box-sizing:border-box; width:28px; min-width:28px; flex:0 0 28px; height:30px;
  margin:0; padding:2px; border:0; border-radius:3px; box-shadow:none;
  background:transparent; color:#1361a3; outline-offset:1px;
}
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy .prblem-svg {
  display:block; width:21px; height:21px; stroke:currentColor; stroke-width:2.3;
  fill:none; opacity:1;
}
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:hover,
body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:focus-visible {
  background:rgba(20,99,172,.10); color:#064e91; border:0; box-shadow:none;
}
html[data-mode=dark] body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy {
  background:transparent; color:#91cdff; border:0; box-shadow:none;
}
html[data-mode=dark] body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:hover,
html[data-mode=dark] body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy:focus-visible {
  background:rgba(145,205,255,.13); color:#e0f3ff; border:0;
}
@media (max-width:760px){
  body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy,
  html[data-mode=dark] body.prblem-core .prblem-share-inline .prblem-share>button.prblem-share-copy {
    width:34px; min-width:34px; flex-basis:34px; height:36px;
  }
}

/* v1.7.23: user-supplied P mark, preserving header/footer layout */
.prblem-brandmark,.prblem-footer-mark{background:transparent!important;box-shadow:none!important;border:0!important;display:inline-flex!important;align-items:center;justify-content:center;overflow:visible!important;padding:0!important}
.prblem-brandmark img,.prblem-footer-mark img{display:block;width:100%;height:100%;object-fit:contain}
.prblem-footer-mark{width:42px;height:42px;flex:0 0 42px}

/* v1.7.24: user-selected transparent brand artwork; keep intrinsic layout sizes. */
body.prblem-core .prblem-brandmark img,body.prblem-core .prblem-footer-mark img{display:block;max-width:100%;max-height:100%;object-fit:contain;}

/* v1.7.25: unobtrusive page-position indicator and human sitemap */
.prblem-page-position{display:inline-flex;align-items:center;white-space:nowrap;font-size:11px;font-weight:700;color:#245d85;border:1px solid #b5c4d0;background:#eaf2f8;padding:4px 7px;border-radius:3px;margin-left:auto}
.prblem-directory-toolbar{flex-wrap:wrap;gap:6px}
.prblem-sitemap{max-width:1180px;margin:0 auto;padding:24px 26px 50px;min-height:65vh}
.prblem-sitemap h1{font-size:30px;margin:0 0 8px}.prblem-sitemap-intro{color:#59636c;margin-bottom:20px}
.prblem-sitemap-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.prblem-sitemap-section{background:#f2f3f4;border:1px solid #c8cbce;padding:18px;min-width:0}
.prblem-sitemap-section h2{margin:0 0 10px;font-size:20px}.prblem-sitemap-section ul{margin:0;padding-left:20px}.prblem-sitemap-section li{margin:7px 0;line-height:1.45;overflow-wrap:anywhere}
.prblem-sitemap-section .prblem-sitemap-more{display:inline-block;margin-top:12px;font-weight:700}
@media(max-width:700px){.prblem-sitemap{padding:18px 14px}.prblem-sitemap-grid{grid-template-columns:1fr}.prblem-page-position{font-size:10px}}