/* SPDX-License-Identifier: AGPL-3.0-only */
:root{
  --bg:#0b0c18;--bg-soft:#111225;--surface:#15172d;--surface-2:#1b1e39;--surface-3:#232744;
  --text:#f7f7ff;--muted:#a9adc8;--muted-2:#777d9d;--line:rgba(255,255,255,.1);--line-strong:rgba(255,255,255,.16);
  --primary:#8b6cff;--primary-2:#6b47f5;--primary-soft:rgba(139,108,255,.15);--mint:#67e4be;--danger:#ff738b;--warning:#ffc96b;
  --shadow:0 24px 70px rgba(0,0,0,.34);--shadow-soft:0 12px 40px rgba(0,0,0,.2);--radius:22px;--radius-sm:14px;--header:76px;
  --font:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
html[data-theme="light"]{
  --bg:#f7f7fc;--bg-soft:#ffffff;--surface:#ffffff;--surface-2:#f1f1fa;--surface-3:#e9e8f7;
  --text:#17182a;--muted:#646981;--muted-2:#888da3;--line:rgba(24,25,48,.1);--line-strong:rgba(24,25,48,.16);
  --primary:#6544e8;--primary-2:#5534d3;--primary-soft:rgba(101,68,232,.11);--mint:#168b70;--danger:#d83f5e;--warning:#9a6815;
  --shadow:0 24px 70px rgba(53,47,95,.14);--shadow-soft:0 12px 40px rgba(53,47,95,.1)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:radial-gradient(circle at 80% -10%,rgba(111,71,245,.18),transparent 32%),var(--bg);color:var(--text);font-family:var(--font);font-size:16px;line-height:1.55;-webkit-font-smoothing:antialiased}button,input,select,textarea{font:inherit}button,a{-webkit-tap-highlight-color:transparent}a{color:inherit;text-decoration:none}button{color:inherit}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid rgba(139,108,255,.42);outline-offset:2px}.skip-link{position:fixed;left:16px;top:-100px;z-index:9999;padding:10px 14px;background:var(--primary);color:#fff;border-radius:10px}.skip-link:focus{top:10px}.site-header{position:sticky;z-index:60;top:0;background:color-mix(in srgb,var(--bg) 82%,transparent);border-bottom:1px solid var(--line);backdrop-filter:blur(22px)}.header-inner{height:var(--header);max-width:1480px;margin:auto;padding:0 28px;display:flex;align-items:center;gap:28px}.brand{display:flex;align-items:center;gap:12px;min-width:max-content}.brand-mark{width:38px;height:38px;display:grid;grid-template-columns:repeat(3,1fr);align-items:end;gap:3px;padding:7px;border-radius:12px;background:linear-gradient(145deg,var(--primary),#4f2fd2);box-shadow:0 8px 20px rgba(103,70,235,.3)}.brand-mark i{display:block;border-radius:3px;background:#fff}.brand-mark i:nth-child(1){height:12px;opacity:.75}.brand-mark i:nth-child(2){height:22px}.brand-mark i:nth-child(3){height:17px;opacity:.86}.brand-mark.mini{width:32px;height:32px;padding:6px;border-radius:10px}.brand-copy{display:grid;line-height:1.15}.brand-copy strong{font-size:18px;letter-spacing:-.02em}.brand-copy small{margin-top:4px;color:var(--muted);font-size:11px}.desktop-nav{display:flex;align-items:center;gap:4px;margin-right:auto}.desktop-nav a{padding:10px 13px;border-radius:11px;color:var(--muted);font-size:14px;font-weight:700}.desktop-nav a:hover,.desktop-nav a.active{background:var(--primary-soft);color:var(--text)}.header-actions{display:flex;align-items:center;gap:8px}.privacy-chip{display:flex;align-items:center;gap:7px;padding:7px 11px;border-radius:999px;border:1px solid var(--line);color:var(--muted);font-size:12px}.privacy-chip span{width:7px;height:7px;border-radius:50%;background:var(--mint);box-shadow:0 0 0 4px color-mix(in srgb,var(--mint) 16%,transparent)}.privacy-chip b{font-weight:700}.header-button,.icon-button{border:1px solid var(--line);background:var(--surface);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:7px;height:40px;border-radius:12px;font-weight:750}.header-button{padding:0 13px;font-size:13px}.header-button:hover,.icon-button:hover{border-color:var(--line-strong);background:var(--surface-2)}.icon-button{width:40px;padding:0}.icon-button span{font-weight:800}.menu-wrap{position:relative}.popover{position:absolute;right:0;top:calc(100% + 10px);min-width:210px;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);z-index:90}.popover[hidden]{display:none}.popover-title{padding:8px 10px;color:var(--muted-2);font-size:11px;font-weight:850;text-transform:uppercase;letter-spacing:.08em}.popover button{width:100%;display:flex;align-items:center;gap:10px;padding:10px 11px;border:0;border-radius:10px;background:transparent;text-align:left;cursor:pointer}.popover button:hover,.popover button.active{background:var(--primary-soft)}.popover button span{width:25px;color:var(--primary);font-weight:850}.popover button b{font-weight:700}.popover-wide{min-width:230px}.mobile-menu-trigger{display:none}.mobile-nav{padding:10px 20px 18px;display:grid;gap:4px;border-top:1px solid var(--line)}.mobile-nav[hidden]{display:none}.mobile-nav a,.mobile-nav button{padding:12px;border:0;border-radius:10px;background:transparent;text-align:left;font-weight:720;cursor:pointer}.mobile-nav a:hover,.mobile-nav button:hover{background:var(--primary-soft)}
main{min-height:calc(100vh - 220px)}.page-shell{max-width:1380px;margin:auto;padding:54px 28px 70px}.hero{position:relative;overflow:hidden;min-height:440px;display:flex;align-items:center;padding:70px 0 60px}.hero::before{content:"";position:absolute;right:-60px;top:15px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(139,108,255,.28),rgba(139,108,255,0) 66%);pointer-events:none}.hero-grid{width:100%;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(360px,.9fr);gap:70px;align-items:center}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;padding:7px 11px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:850;letter-spacing:.06em;text-transform:uppercase}.hero h1{max-width:770px;margin:0;font-size:clamp(45px,6vw,80px);line-height:1.01;letter-spacing:-.055em}.hero-copy>p{max-width:710px;margin:24px 0 30px;color:var(--muted);font-size:19px}.hero-count{margin-top:14px;color:var(--muted);font-size:13px;font-weight:700}.search-box{position:relative;display:flex;align-items:center;gap:12px;padding:8px 9px 8px 17px;border:1px solid var(--line-strong);border-radius:17px;background:var(--surface);box-shadow:var(--shadow-soft)}.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-soft),var(--shadow-soft)}.search-box>span{color:var(--muted);font-size:20px}.search-box input{width:100%;height:46px;border:0;outline:0;background:transparent;color:var(--text);font-size:16px}.search-box button{display:none;border:0;border-radius:10px;background:var(--surface-2);width:38px;height:38px;cursor:pointer}.search-box.has-value button{display:block}.hero-preview{position:relative}.preview-window{padding:18px;border:1px solid var(--line);border-radius:27px;background:linear-gradient(160deg,color-mix(in srgb,var(--surface) 90%,var(--primary) 10%),var(--surface));box-shadow:var(--shadow);transform:rotate(1deg)}.preview-top{display:flex;gap:6px;margin-bottom:17px}.preview-top i{width:8px;height:8px;border-radius:50%;background:var(--line-strong)}.preview-top i:first-child{background:#ff7589}.preview-top i:nth-child(2){background:#ffc86a}.preview-top i:nth-child(3){background:#6ee0b8}.preview-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.preview-tool{min-height:105px;padding:15px;border:1px solid var(--line);border-radius:17px;background:color-mix(in srgb,var(--surface-2) 88%,transparent)}.preview-tool span{width:36px;height:36px;display:grid;place-items:center;border-radius:11px;background:var(--primary-soft);color:var(--primary);font-weight:900}.preview-tool strong{display:block;margin-top:12px;font-size:13px}.preview-tool small{color:var(--muted);font-size:10px}.section{margin-top:62px}.section-header{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:20px}.section-header h2,.page-heading h1{margin:0;letter-spacing:-.035em}.section-header h2{font-size:28px}.section-header a,.text-button{border:0;background:transparent;color:var(--primary);font-weight:800;cursor:pointer}.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:15px}.category-card{position:relative;min-height:150px;padding:21px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);transition:.2s ease;overflow:hidden}.category-card::after{content:"";position:absolute;right:-30px;bottom:-45px;width:120px;height:120px;border-radius:50%;background:var(--primary-soft)}.category-card:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--primary) 45%,var(--line));box-shadow:var(--shadow-soft)}.category-icon,.tool-icon{display:grid;place-items:center;background:var(--primary-soft);color:var(--primary);font-weight:900}.category-icon{width:43px;height:43px;border-radius:13px}.category-card h3{margin:22px 0 4px;font-size:17px;line-height:1.25}.category-card p{margin:0;color:var(--muted);font-size:13px}.tools-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:13px}.tool-card{position:relative;min-height:136px;padding:17px;border:1px solid var(--line);border-radius:18px;background:var(--surface);transition:.18s ease;display:flex;flex-direction:column}.tool-card:hover{transform:translateY(-3px);border-color:color-mix(in srgb,var(--primary) 38%,var(--line));box-shadow:var(--shadow-soft)}.tool-card-top{display:flex;align-items:start;justify-content:space-between;gap:10px}.tool-icon{width:39px;height:39px;border-radius:12px;font-size:13px}.favorite-button{width:34px;height:34px;border:0;border-radius:10px;background:transparent;color:var(--muted-2);cursor:pointer;font-size:19px}.favorite-button:hover,.favorite-button.active{background:var(--primary-soft);color:var(--primary)}.tool-card h3{margin:16px 0 5px;font-size:15px;line-height:1.27}.tool-card p{margin:0;color:var(--muted);font-size:11px}.page-heading{margin-bottom:30px}.page-heading .eyebrow{margin-bottom:13px}.page-heading h1{font-size:clamp(36px,5vw,58px)}.page-heading p{max-width:730px;margin:12px 0 0;color:var(--muted);font-size:17px}.listing-toolbar{display:flex;gap:12px;align-items:center;margin-bottom:23px}.listing-toolbar .search-box{max-width:660px;flex:1}.listing-count{margin-left:auto;color:var(--muted);font-size:13px}.empty-state{padding:60px 25px;border:1px dashed var(--line-strong);border-radius:var(--radius);text-align:center;background:var(--surface)}.empty-state span{display:grid;place-items:center;width:60px;height:60px;margin:0 auto 18px;border-radius:18px;background:var(--primary-soft);color:var(--primary);font-size:25px}.empty-state h2{margin:0 0 7px}.empty-state p{margin:0;color:var(--muted)}
.tool-page{max-width:1120px}.breadcrumb{display:flex;align-items:center;gap:8px;margin-bottom:23px;color:var(--muted);font-size:13px}.breadcrumb a:hover{color:var(--primary)}.tool-heading{display:flex;align-items:start;justify-content:space-between;gap:24px;margin-bottom:26px}.tool-title-wrap{display:flex;align-items:center;gap:17px}.tool-title-wrap .tool-icon{width:58px;height:58px;border-radius:18px;font-size:18px}.tool-heading h1{margin:0;font-size:clamp(30px,4vw,46px);line-height:1.1;letter-spacing:-.04em}.tool-heading p{margin:7px 0 0;color:var(--muted)}.tool-heading-actions{display:flex;gap:8px}.button,.button-secondary,.button-ghost,.icon-action{border:0;border-radius:12px;cursor:pointer;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px}.button{padding:11px 16px;background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(99,65,220,.26)}.button:hover{filter:brightness(1.07)}.button-secondary{padding:11px 15px;background:var(--surface-2);border:1px solid var(--line);color:var(--text)}.button-secondary:hover,.button-ghost:hover{background:var(--surface-3)}.button-ghost{padding:10px 13px;background:transparent;border:1px solid var(--line);color:var(--muted)}.icon-action{width:42px;height:42px;background:var(--surface);border:1px solid var(--line);font-size:18px}.icon-action.active{color:var(--primary);background:var(--primary-soft)}.tool-workspace{display:grid;grid-template-columns:minmax(0,1fr);gap:16px}.tool-panel{border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);box-shadow:var(--shadow-soft);overflow:hidden}.tool-form{padding:25px}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}.field{display:grid;gap:7px}.field-wide{grid-column:1/-1}.field label,.field>span:first-child{font-size:12px;font-weight:800;color:var(--muted)}.field input,.field select,.field textarea,.tool-form textarea{width:100%;border:1px solid var(--line-strong);border-radius:12px;background:var(--bg-soft);color:var(--text);padding:11px 12px;outline:0}.field textarea,.tool-form textarea{resize:vertical;min-height:120px}.field input:focus,.field select:focus,.field textarea:focus,.tool-form textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}.field-hint{color:var(--muted-2);font-size:11px}.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px}.check-field{display:flex;align-items:center;gap:8px;padding:10px;border:1px solid var(--line);border-radius:11px}.check-field input{accent-color:var(--primary)}.form-actions{display:flex;flex-wrap:wrap;gap:9px;margin-top:21px}.local-note{display:flex;gap:9px;align-items:flex-start;margin-top:18px;padding:12px 14px;border-radius:12px;background:color-mix(in srgb,var(--mint) 8%,transparent);color:var(--muted);font-size:12px}.local-note::before{content:"●";color:var(--mint)}.result-card{margin-top:16px;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface);overflow:hidden}.result-card-header{display:flex;align-items:center;justify-content:space-between;padding:14px 18px;border-bottom:1px solid var(--line)}.result-card-header strong{font-size:13px}.result-body{padding:22px}.result-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:11px}.result-stat{padding:15px;border-radius:14px;background:var(--surface-2);border:1px solid var(--line)}.result-stat span{display:block;color:var(--muted);font-size:11px}.result-stat strong{display:block;margin-top:5px;font-size:20px;overflow-wrap:anywhere}.result-pre{margin:0;white-space:pre-wrap;word-break:break-word;padding:17px;border-radius:14px;background:var(--bg-soft);border:1px solid var(--line);font:13px/1.65 ui-monospace,SFMono-Regular,Consolas,monospace;max-height:480px;overflow:auto}.result-list{margin:0;padding-left:23px}.result-hero{text-align:center;padding:18px}.result-hero strong{font-size:clamp(34px,6vw,64px);letter-spacing:-.04em}.qr-result{text-align:center}.qr-result canvas{max-width:100%;height:auto;padding:12px;background:#fff;border-radius:12px}.timer-shell,.counter-shell,.clock-shell,.practice-shell{padding:30px;text-align:center}.timer-display,.counter-value,.clock-time,.practice-question{font-size:clamp(46px,9vw,84px);font-weight:850;letter-spacing:-.055em;font-variant-numeric:tabular-nums}.clock-date{color:var(--muted);font-size:18px}.timer-actions,.counter-actions{display:flex;justify-content:center;gap:9px;flex-wrap:wrap;margin-top:20px}.timer-progress{height:7px;margin:22px auto 0;max-width:520px;border-radius:999px;background:var(--surface-3);overflow:hidden}.timer-progress span{display:block;height:100%;background:var(--primary);border-radius:inherit}.lap-list{max-width:520px;margin:20px auto 0;padding:0;list-style:none;text-align:left}.lap-list li{display:flex;justify-content:space-between;padding:9px 3px;border-bottom:1px solid var(--line)}.counter-main{width:140px;height:140px;margin:15px auto;border-radius:50%;border:0;background:linear-gradient(145deg,var(--primary),var(--primary-2));color:#fff;font-size:42px;cursor:pointer;box-shadow:0 18px 40px rgba(99,65,220,.3)}.practice-score{color:var(--muted);font-weight:750}.swatch-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(100px,1fr));gap:10px}.swatch{padding:0 0 10px;border:1px solid var(--line);border-radius:13px;background:var(--surface-2);overflow:hidden;cursor:pointer}.swatch span{display:block;height:72px;background:var(--swatch)}.swatch strong{display:block;margin-top:9px;font-size:11px}.markdown-preview{padding:20px;border-radius:14px;background:var(--bg-soft);border:1px solid var(--line);text-align:left}.markdown-preview h1,.markdown-preview h2,.markdown-preview h3{letter-spacing:-.02em}.markdown-preview code{padding:2px 5px;border-radius:5px;background:var(--surface-3)}.bug-strip{margin-top:35px;padding:18px 20px;border:1px solid color-mix(in srgb,var(--primary) 28%,var(--line));border-radius:17px;background:linear-gradient(110deg,var(--primary-soft),transparent);display:flex;align-items:center;gap:15px}.bug-strip-icon{width:39px;height:39px;flex:0 0 auto;display:grid;place-items:center;border-radius:12px;background:var(--primary-soft);color:var(--primary)}.bug-strip p{margin:0;flex:1;color:var(--muted);font-size:13px}.bug-strip button{white-space:nowrap}
.site-footer{border-top:1px solid var(--line);background:var(--bg-soft)}.footer-inner{max-width:1380px;margin:auto;padding:28px;display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:24px}.footer-brand{display:flex;align-items:center;gap:10px}.footer-brand div{display:grid;line-height:1.2}.footer-brand small{color:var(--muted);font-size:10px}.footer-links{display:flex;gap:18px}.footer-links a,.footer-links button{border:0;background:transparent;color:var(--muted);font-size:12px;cursor:pointer}.footer-links a:hover,.footer-links button:hover{color:var(--primary)}.footer-meta{display:flex;justify-content:flex-end;gap:13px;color:var(--muted-2);font-size:10px}
.modal-root:empty{display:none}.modal-backdrop{position:fixed;inset:0;z-index:200;background:rgba(3,4,13,.72);backdrop-filter:blur(10px);display:grid;place-items:center;padding:20px;animation:fadeIn .15s ease}.modal{width:min(760px,100%);max-height:min(88vh,900px);overflow:auto;border:1px solid var(--line-strong);border-radius:26px;background:var(--surface);box-shadow:var(--shadow);animation:slideUp .2s ease}.modal.modal-large{width:min(980px,100%)}.modal-header{position:sticky;top:0;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:20px;padding:20px 23px;border-bottom:1px solid var(--line);background:color-mix(in srgb,var(--surface) 93%,transparent);backdrop-filter:blur(15px)}.modal-header h2{margin:0;font-size:22px;letter-spacing:-.03em}.modal-close{width:37px;height:37px;border:1px solid var(--line);border-radius:11px;background:var(--surface-2);cursor:pointer}.modal-body{padding:24px}.institutional-hero{padding:26px;border-radius:20px;background:linear-gradient(125deg,var(--primary-soft),color-mix(in srgb,var(--mint) 7%,transparent));border:1px solid var(--line)}.institutional-hero h3{margin:0 0 8px;font-size:29px;letter-spacing:-.035em}.institutional-hero p{margin:0;color:var(--muted)}.badge-row{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}.badge{padding:6px 9px;border:1px solid var(--line);border-radius:999px;background:var(--surface);font-size:10px;font-weight:800;color:var(--muted)}.info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px;margin-top:16px}.info-card{padding:18px;border:1px solid var(--line);border-radius:16px;background:var(--surface-2)}.info-card .info-icon{width:35px;height:35px;display:grid;place-items:center;border-radius:11px;background:var(--primary-soft);color:var(--primary);font-weight:900}.info-card h4{margin:13px 0 5px}.info-card p{margin:0;color:var(--muted);font-size:13px}.institutional-section{margin-top:24px}.institutional-section h3{margin:0 0 12px;font-size:17px}.feature-list{display:grid;gap:8px;padding:0;margin:0;list-style:none}.feature-list li{display:flex;gap:10px;align-items:flex-start;padding:11px 13px;border-radius:12px;background:var(--surface-2);color:var(--muted);font-size:13px}.feature-list li::before{content:"✓";color:var(--mint);font-weight:900}.identity-card{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:14px}.identity-card>div{padding:15px;border:1px solid var(--line);border-radius:14px}.identity-card small{display:block;color:var(--muted-2)}.identity-card strong,.identity-card a{display:block;margin-top:4px;font-size:13px}.identity-card a{color:var(--primary)}.donate-actions,.modal-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}.technical-report{margin-top:15px;padding:15px;border:1px solid var(--line);border-radius:14px;background:var(--bg-soft);white-space:pre-wrap;word-break:break-word;font:12px/1.6 ui-monospace,SFMono-Regular,Consolas,monospace}.privacy-note{display:flex;gap:10px;margin-top:13px;padding:13px;border-radius:13px;background:color-mix(in srgb,var(--mint) 8%,transparent);color:var(--muted);font-size:12px}.toast-region{position:fixed;right:20px;bottom:20px;z-index:300;display:grid;gap:8px}.toast{min-width:220px;max-width:380px;padding:12px 15px;border:1px solid var(--line-strong);border-radius:13px;background:var(--surface);box-shadow:var(--shadow-soft);font-size:13px;animation:slideUp .18s ease}.error-box{padding:14px;border-radius:12px;background:color-mix(in srgb,var(--danger) 10%,transparent);color:var(--danger)}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}@keyframes slideUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
@media(max-width:1100px){.category-grid,.tools-grid{grid-template-columns:repeat(3,minmax(0,1fr))}.hero-grid{gap:38px}.privacy-chip{display:none}.footer-inner{grid-template-columns:1fr auto}.footer-links{display:none}.footer-meta{justify-content:flex-end}}
@media(max-width:820px){:root{--header:68px}.header-inner{padding:0 17px;gap:12px}.desktop-nav,.header-button b,.brand-copy small{display:none}.header-actions{margin-left:auto}.mobile-menu-trigger{display:inline-flex}.hero{padding:42px 0}.hero-grid{grid-template-columns:1fr}.hero-preview{display:none}.hero h1{font-size:48px}.page-shell{padding:35px 18px 55px}.category-grid,.tools-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.tool-heading{display:grid}.tool-heading-actions{justify-self:start}.footer-inner{padding:23px 18px}.form-grid,.info-grid,.identity-card{grid-template-columns:1fr}.bug-strip{align-items:flex-start;flex-wrap:wrap}.bug-strip button{margin-left:54px}.listing-toolbar{align-items:stretch;flex-direction:column}.listing-count{margin:0}}
@media(max-width:520px){.brand-copy strong{font-size:16px}.brand-mark{width:34px;height:34px}.header-actions{gap:5px}.icon-button{width:37px;height:37px}.install-trigger{display:none}.hero h1{font-size:39px}.hero-copy>p{font-size:16px}.category-grid,.tools-grid{grid-template-columns:1fr}.category-card{min-height:128px}.tool-card{min-height:124px}.section{margin-top:44px}.section-header h2{font-size:23px}.tool-title-wrap{align-items:flex-start}.tool-title-wrap .tool-icon{width:48px;height:48px}.tool-heading h1{font-size:31px}.tool-form,.result-body,.modal-body{padding:18px}.timer-display,.counter-value,.clock-time,.practice-question{font-size:46px}.footer-meta{display:none}.footer-inner{grid-template-columns:1fr}.modal-backdrop{padding:8px}.modal{border-radius:20px}.modal-header{padding:16px 18px}.bug-strip button{margin-left:0;width:100%}.check-grid{grid-template-columns:1fr}}
.primary-button,.secondary-button{border:0;border-radius:12px;cursor:pointer;font-weight:800;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:10px 15px}.primary-button{background:linear-gradient(135deg,var(--primary),var(--primary-2));color:#fff;box-shadow:0 10px 24px rgba(99,65,220,.22)}.primary-button:hover{filter:brightness(1.07)}.secondary-button{background:var(--surface-2);border:1px solid var(--line);color:var(--text)}.secondary-button:hover{background:var(--surface-3)}.primary-button:disabled,.secondary-button:disabled,.icon-button:disabled{opacity:.45;cursor:not-allowed}.tool-panel>.local-note{margin:0;padding:12px 24px;border-radius:0;border-top:1px solid var(--line)}.result-card-header h3{margin:3px 0 0}.result-card-header small{color:var(--muted);font-size:11px}.result-body.empty{color:var(--muted)}.error-result{color:var(--danger)}.qr-result img{display:block;max-width:min(100%,360px);height:auto;margin:0 auto 18px;padding:12px;border-radius:14px;background:#fff}.qr-result .secondary-button{text-decoration:none}.practice-shell input{max-width:260px;margin:18px auto 0;border:1px solid var(--line-strong);border-radius:12px;background:var(--bg-soft);color:var(--text);padding:12px;text-align:center}.practice-shell button{margin-top:12px}