/* ScreenTestPro shared stylesheet (main site + tools site). Hand-written, no framework. */
:root{
  --bg:#0d1117;--bg2:#161b22;--bg3:#1f2630;--line:#2d3642;
  --text:#e6edf3;--muted:#9aa7b4;--accent:#4f9cff;--accent2:#7cc4ff;
  --ok:#3fb950;--warn:#d29922;--bad:#f85149;
  --radius:12px;--max:1120px;--prose:760px;
  --font:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.65 var(--font)}
img,svg,canvas{max-width:100%;display:block}
a{color:var(--accent2);text-underline-offset:2px}
a:hover{color:#fff}
h1,h2,h3{line-height:1.25;margin:0 0 .6em}
h1{font-size:clamp(1.7rem,3.5vw,2.4rem)}
h2{font-size:1.45rem;margin-top:2.2em}
h3{font-size:1.1rem;margin-top:1.6em}
p,ul,ol,table{margin:0 0 1em}
code,kbd{font-family:var(--mono);font-size:.9em;background:var(--bg3);padding:.1em .35em;border-radius:4px}
kbd{border:1px solid var(--line)}
.wrap{max-width:var(--max);margin:0 auto;padding:0 20px}
.prose{max-width:var(--prose)}
.muted{color:var(--muted)}
.small{font-size:.875rem}
.skip{position:absolute;left:-999px}.skip:focus{left:10px;top:10px;background:#fff;color:#000;padding:8px;z-index:99}

/* header / footer */
.site-header{border-bottom:1px solid var(--line);background:var(--bg2)}
.site-header .wrap{display:flex;align-items:center;gap:16px;min-height:60px;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:var(--text);text-decoration:none;font-weight:700;font-size:1.1rem}
.brand img{width:30px;height:30px;border-radius:7px}
.nav{display:flex;gap:4px;flex-wrap:wrap;margin-left:auto}
.nav a{color:var(--muted);text-decoration:none;padding:6px 10px;border-radius:8px;font-size:.92rem}
.nav a:hover,.nav a[aria-current=page]{color:var(--text);background:var(--bg3)}
.nav-toggle{display:none;margin-left:auto;background:var(--bg3);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:6px 12px;font:inherit}
@media(max-width:860px){
  .nav-toggle{display:block}
  .nav{display:none;width:100%;padding-bottom:12px}
  .nav.open{display:flex}
}
.site-footer{border-top:1px solid var(--line);margin-top:64px;padding:32px 0;color:var(--muted);font-size:.9rem}
.site-footer .cols{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin:4px 0}
.site-footer a{color:var(--muted)}
.site-footer h3{font-size:.95rem;color:var(--text);margin:0 0 8px}

/* breadcrumbs */
.crumbs{font-size:.85rem;color:var(--muted);margin:18px 0 10px}
.crumbs a{color:var(--muted)}
.crumbs ol{list-style:none;padding:0;margin:0;display:flex;gap:6px;flex-wrap:wrap}
.crumbs li+li::before{content:"›";margin-right:6px}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid var(--line);background:var(--bg3);color:var(--text);
  font:600 .95rem var(--font);padding:10px 16px;border-radius:10px;cursor:pointer;text-decoration:none;min-height:44px}
.btn:hover{border-color:var(--accent);color:#fff}
.btn:focus-visible,.swatch:focus-visible,select:focus-visible,input:focus-visible{outline:3px solid var(--accent);outline-offset:2px}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#04121f}
.btn-primary:hover{background:#6aadff;color:#04121f}
.btn-lg{font-size:1.1rem;padding:14px 26px;min-height:52px}
.btn[aria-pressed=true]{border-color:var(--accent);background:#14304f}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center}

/* cards */
.card{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.grid{display:grid;gap:16px;grid-template-columns:repeat(auto-fill,minmax(250px,1fr))}
.tool-card{display:block;text-decoration:none;color:var(--text);transition:border-color .15s}
.tool-card:hover{border-color:var(--accent);color:var(--text)}
.tool-card h3{margin:10px 0 6px;font-size:1.05rem}
.tool-card p{color:var(--muted);font-size:.92rem;margin:0}
.tool-icon{width:40px;height:40px;border-radius:10px;display:grid;place-items:center;background:var(--bg3);font-size:1.3rem}

/* tool page */
.tool-head{margin-bottom:14px}
.tool-head p{color:var(--muted);margin:0;max-width:820px}
.tool{background:var(--bg2);border:1px solid var(--line);border-radius:var(--radius);padding:20px}
.tool-start{display:flex;gap:14px;align-items:center;flex-wrap:wrap}
.tool-opts{display:flex;gap:18px;flex-wrap:wrap;margin-top:16px;color:var(--muted);font-size:.92rem}
.tool-opts label{display:flex;gap:8px;align-items:center}
select,input[type=number],input[type=range]{background:var(--bg3);color:var(--text);border:1px solid var(--line);border-radius:8px;padding:6px 8px;font:inherit}
/* custom dark select (also styles native <select> cleanly before JS runs) */
select{-webkit-appearance:none;appearance:none;padding:8px 34px 8px 13px;border-radius:10px;cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='none' stroke='%239aa7b4' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round' d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 10px center;background-size:16px}
select:hover{border-color:var(--accent)}
.csel{position:relative;display:inline-block;min-width:190px;max-width:100%;font-weight:500;vertical-align:middle}
.choice .csel{display:block;width:100%;margin-top:6px}
.csel-native{display:none!important}
.csel-btn{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;background:var(--bg3);color:var(--text);
  border:1px solid var(--line);border-radius:10px;padding:8px 13px;font:500 .92rem/1.35 var(--font);cursor:pointer;text-align:left;transition:border-color .15s,background .15s,box-shadow .15s}
.csel-btn:hover{border-color:var(--accent);background:#252e3a}
.csel.open .csel-btn,.csel-btn:focus-visible{border-color:var(--accent);outline:none;box-shadow:0 0 0 3px rgba(79,156,255,.22)}
.csel-label{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.csel-arrow{flex-shrink:0;width:16px;height:16px;color:var(--muted);transition:transform .18s ease,color .18s ease}
.csel.open .csel-arrow{transform:rotate(180deg);color:var(--accent2)}
.csel-menu{position:absolute;left:0;right:0;top:calc(100% + 6px);min-width:100%;width:max-content;max-width:min(92vw,520px);max-height:280px;overflow-y:auto;
  background:#141a22;border:1px solid var(--accent);border-radius:10px;padding:5px;margin:0;list-style:none;z-index:999;
  box-shadow:0 14px 34px rgba(0,0,0,.65);display:none}
.csel.open .csel-menu{display:block}
.csel-opt{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:8px 11px;border-radius:7px;color:var(--muted);
  font-size:.9rem;line-height:1.35;cursor:pointer;user-select:none;transition:background .1s,color .1s}
.csel-opt:hover,.csel-opt.active{background:var(--bg3);color:var(--text)}
.csel-opt[aria-selected=true]{background:#14304f;color:#fff;font-weight:600}
.csel-opt[aria-selected=true]::after{content:"✓";color:var(--accent2);font-weight:700;flex-shrink:0}
.swatches{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
.swatch{width:44px;height:44px;border-radius:8px;border:2px solid var(--line);cursor:pointer;padding:0}
.env{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.env span{background:var(--bg3);border:1px solid var(--line);border-radius:999px;padding:3px 10px;font-size:.8rem;color:var(--muted)}
.env b{color:var(--text);font-weight:600}
.stat-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:12px;margin:16px 0}
.stat{background:var(--bg3);border-radius:10px;padding:12px 14px}
.stat .v{font:700 1.7rem/1.1 var(--mono)}
.stat .k{font-size:.8rem;color:var(--muted)}
.panel-tabs{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:14px}
.stage-inline{position:relative;border-radius:10px;overflow:hidden;background:#000;border:1px solid var(--line)}
.hint{font-size:.85rem;color:var(--muted);margin-top:10px}
.warnbox{border:1px solid var(--warn);background:#2a2110;border-radius:10px;padding:14px;margin:12px 0}

/* result card */
.result{margin-top:18px;border:1px solid var(--accent);background:#0f1d2e;border-radius:var(--radius);padding:18px}
.result[hidden]{display:none}
.result h2{margin:0 0 10px;font-size:1.2rem}
.verdict{display:inline-block;font-weight:700;padding:3px 10px;border-radius:999px;font-size:.9rem;margin-bottom:8px}
.verdict.ok{background:#12351d;color:var(--ok)}.verdict.warn{background:#3a2c0b;color:var(--warn)}.verdict.bad{background:#3d1514;color:var(--bad)}
.result dl{display:grid;grid-template-columns:max-content 1fr;gap:4px 16px;margin:10px 0}
.result dt{color:var(--muted)}.result dd{margin:0;font-family:var(--mono)}
.choice-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:10px;margin:10px 0}
.choice{background:var(--bg3);border-radius:10px;padding:10px 12px}
.choice legend,.choice .lbl{font-weight:600;font-size:.92rem;margin-bottom:6px}
.choice label{display:block;font-size:.9rem;color:var(--muted)}

/* content */
.content{margin-top:8px}
.content table{border-collapse:collapse;width:100%;font-size:.93rem}
.content th,.content td{border:1px solid var(--line);padding:8px 10px;text-align:left;vertical-align:top}
.content th{background:var(--bg2)}
.content li{margin:.3em 0}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px;margin:16px 0}
.gallery figure{margin:0;background:var(--bg2);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.gallery svg{width:100%;height:auto;aspect-ratio:16/10}
.gallery figcaption{padding:10px 12px;font-size:.88rem;color:var(--muted)}
.gallery figcaption b{color:var(--text);display:block}
details{background:var(--bg2);border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin:8px 0}
summary{cursor:pointer;font-weight:600}
details p{margin:.6em 0 0;color:var(--muted)}
.reviewed{margin-top:28px;font-size:.85rem;color:var(--muted)}

/* ads */
.ad{margin:36px auto;text-align:center;min-height:280px}
.ad-label{display:block;font-size:.7rem;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:4px}

/* fullscreen stage (shared) */
.fs-stage{position:fixed;inset:0;z-index:2147483000;display:none;background:#000;cursor:none;touch-action:none;user-select:none}
.fs-stage.on{display:block}
.fs-stage.show-cursor{cursor:default}
.fs-hud{position:absolute;left:50%;top:16px;transform:translateX(-50%);background:rgba(0,0,0,.72);color:#fff;font:14px/1.4 var(--font);
  padding:8px 14px;border-radius:8px;transition:opacity .4s;pointer-events:none;white-space:nowrap;max-width:95vw;overflow:hidden;text-overflow:ellipsis}
.fs-hud.hide{opacity:0}
.fs-canvas{position:absolute;inset:0;width:100%;height:100%}
.fs-exit{position:absolute;right:14px;bottom:14px;background:rgba(0,0,0,.6);color:#fff;border:1px solid rgba(255,255,255,.3);border-radius:8px;padding:8px 12px;font:14px var(--font);cursor:pointer;opacity:.0;transition:opacity .3s}
.fs-stage.show-cursor .fs-exit{opacity:1}
body.fs-lock{overflow:hidden}