/* imagebench.dev - warm workshop, cobalt action. Inspired by the LottieFiles
   system (warm canvas, ink text, flat white cards, tight display tracking),
   rebuilt with its own palette and type. */
:root{
  --canvas:#f4f3f1;
  --paper:#ffffff;
  --ink:#101013;
  --charcoal:#1a1a1e;
  --steel:#6f7076;
  --fog:#9b9ca3;
  --line:#e6e5e1;
  --line-soft:#eeedea;
  --accent:#2456e0;
  --accent-press:#1c46bc;
  --sun:#f0b100;
  --mint:#57dcbe;
  --blush:#ff8fa3;
  --ok:#0e8345;
  --warn:#c25200;
  --font-display:Sora,'Segoe UI',system-ui,sans-serif;
  --font-body:Manrope,'Segoe UI',system-ui,sans-serif;
  --radius-btn:8px;
  --radius-card:16px;
  --radius-panel:24px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--canvas);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.5;
  letter-spacing:-0.16px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--accent);text-underline-offset:3px}
a:hover{color:var(--accent-press)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.wrap{max-width:1140px;margin:0 auto;padding-left:24px;padding-right:24px}

/* header */
.site-header{background:var(--paper);border-bottom:1px solid var(--line)}
.site-header .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap}
.wm-mark{width:20px;height:22px;vertical-align:-4px;margin-right:7px}
.wordmark{font-family:var(--font-display);font-weight:600;font-size:19px;letter-spacing:-0.4px;color:var(--ink);text-decoration:none}
.wordmark b{color:var(--accent);font-weight:600}
.main-nav{display:flex;gap:6px;flex-wrap:wrap;align-items:center}
.nav-label{font-size:13px;font-weight:700;color:var(--fog);margin-right:2px}
.main-nav a{font-size:14px;font-weight:500;color:var(--steel);text-decoration:none;padding:6px 10px;border-radius:var(--radius-btn)}
.main-nav a:hover{color:var(--ink);background:var(--canvas)}
.main-nav a.active{color:var(--ink);background:var(--canvas)}

/* hero */
main{min-height:60vh}
.hero{padding:40px 0 0}
h1{font-family:var(--font-display);font-weight:600;font-size:clamp(34px,4.6vw,52px);line-height:1.08;letter-spacing:-1.6px;margin:0;max-width:22ch}
.lede{margin:14px 0 0;font-size:18px;line-height:1.55;color:var(--steel);max-width:56ch;letter-spacing:-0.18px}

/* split hero */
.hero--split{display:flex;align-items:center;gap:48px;flex-wrap:wrap}
.hero--split>div{flex:1 1 420px;min-width:0}
.hero-art{width:min(320px,36vw);height:auto;flex:none}
@media(max-width:720px){.hero-art{display:none}}

/* bench (tool panel) */
.bench{margin-top:16px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-panel);overflow:hidden}
.dropzone{
  position:relative;margin:24px;padding:56px 24px;border:2px dashed var(--line);
  border-radius:var(--radius-card);display:flex;flex-direction:column;align-items:center;gap:8px;
  text-align:center;cursor:pointer;transition:border-color .15s ease,background .15s ease;
}
.dropzone:hover,.dropzone.is-over{border-color:var(--accent);background:#f7f9ff}
.dropzone .dz-title{font-family:var(--font-display);font-weight:600;font-size:22px;letter-spacing:-0.5px}
.dropzone .dz-sub{font-size:14px;color:var(--fog)}
.dropzone svg{color:var(--accent)}
.dropzone input[type=file]{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:pointer}
.dz-clear{position:absolute;top:10px;right:14px;z-index:2;background:none;border:none;cursor:pointer;font:600 12px var(--font-body);letter-spacing:0.04em;color:var(--fog);text-decoration:underline;text-underline-offset:3px;padding:4px}
.dz-clear:hover{color:var(--warn)}

/* controls */
.controls{display:flex;align-items:flex-end;gap:20px;flex-wrap:wrap;padding:0 24px 24px}
.controls[hidden]{display:none}
.ctrl{display:block}
.ctrl-label{display:block;font-size:12px;font-weight:500;letter-spacing:0.02em;color:var(--steel);margin-bottom:6px}
.controls select,.controls input[type=number],.controls input[type=text]{
  font:500 15px var(--font-body);color:var(--ink);background:var(--paper);
  border:1px solid var(--line);border-radius:var(--radius-btn);padding:9px 12px;min-width:90px;
}
.controls input[type=number]{width:104px}
.qual{display:flex;align-items:center;gap:10px}
.qual input[type=range]{width:150px;accent-color:var(--accent)}
.qual output{font:500 14px var(--font-body);color:var(--ink);min-width:38px}
.check{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--steel);padding-bottom:10px}
.check input{accent-color:var(--accent);width:16px;height:16px}
.btn{
  font:500 15px var(--font-body);letter-spacing:-0.1px;color:#fff;background:var(--accent);
  border:none;border-radius:var(--radius-btn);padding:11px 22px;cursor:pointer;
  transition:background .15s ease;
}
.btn:hover{background:var(--accent-press)}
.btn:active{transform:translateY(1px)}
.btn[disabled]{background:var(--fog);cursor:not-allowed}
.btn-ghost{background:transparent;color:var(--steel);border:1px solid var(--line)}
.btn-ghost:hover{background:var(--canvas);color:var(--ink)}

/* drop zone thumbs */
.dz-thumbs{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;width:100%}
.dz-thumb{width:128px;height:128px;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:#fff}

/* result ticket */
.tickets[hidden]{display:none}
.ticket{border-top:1px solid var(--line);padding:20px 24px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.ticket .thumb{width:72px;height:72px;border:1px solid var(--line);border-radius:var(--radius-btn);object-fit:contain;background:
  repeating-conic-gradient(#eceae6 0% 25%, #fff 0% 50%) 0 0 / 16px 16px}
.ticket .meta{flex:1;min-width:180px}
.ticket .fname{font-weight:500;word-break:break-all}
.ticket .fdims{font-size:13px;color:var(--fog)}
.ticket .delta{font-family:var(--font-display);font-weight:600;font-size:30px;letter-spacing:-0.8px;line-height:1.1}
.ticket .delta small{display:block;font-family:var(--font-body);font-weight:400;font-size:13px;letter-spacing:0;color:var(--fog)}
.delta.good{color:var(--ok)}
.delta.bad{color:var(--warn)}
.err{margin:0 24px 24px;padding:12px 16px;border-radius:var(--radius-btn);background:#fdf1ec;color:var(--warn);font-size:14px}
.err[hidden]{display:none}

/* tiles */
.tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:14px;margin-top:56px}
.tile{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px}
.tile .chip{width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;margin-bottom:12px}
.tile .chip svg{width:18px;height:18px}
.chip-sun{background:var(--sun);color:#3d2c00}
.chip-mint{background:var(--mint);color:#00382b}
.chip-blush{background:var(--blush);color:#571422}
.chip-ink{background:var(--charcoal);color:#fff}
.tile h2,.tile h3{font-family:var(--font-display);font-weight:600;font-size:17px;letter-spacing:-0.3px;margin:0 0 4px}
.tile p{margin:0;font-size:14px;line-height:1.5;color:var(--steel)}

/* quick conversion buttons in the bench */
.quick{display:flex;flex-wrap:wrap;gap:8px;padding:0 24px 24px}
.vnum{font:700 12px var(--font-body);color:#fff;background:var(--fog);border-radius:50%;width:20px;height:20px;display:inline-flex;align-items:center;justify-content:center;align-self:center}
.quick-words{font:600 14px var(--font-body);color:var(--steel);align-self:center;margin-right:2px}
.ftag-any{background:var(--charcoal);color:#fff;border-style:dashed}
.quick+.quick{padding-top:0;margin-top:-10px}
.quick-lead{display:inline-flex;align-items:center;gap:8px;color:var(--fog);align-self:center;margin-right:2px}
.quick-lead svg:first-child{width:22px;height:22px}
.qbtn{display:inline-flex;align-items:center;gap:6px;padding:6px 10px;border:1px solid var(--line);border-radius:10px;text-decoration:none;transition:border-color .15s ease}
.qbtn:hover{border-color:var(--accent)}
button.qbtn{background:var(--paper);cursor:pointer;font:inherit}
.qbtn-fmt.active{background:var(--charcoal);border-color:var(--charcoal)}
.qbtn .ftag{font-size:11px;padding:6px 8px 5px;border-radius:5px 5px 5px 0}
.qbtn .pt-arrow{width:14px;height:9px}
.qbtn.active{background:var(--charcoal);border-color:var(--charcoal)}
.qbtn.active .pt-arrow{color:#77787e}
.qlabel{font:600 12px var(--font-body);color:var(--ink)}
.qbtn.active .qlabel{color:#fff}
.tool-glyph--mini{width:22px;height:22px;border-radius:6px}
.tool-glyph--mini svg{width:14px;height:14px}

.bench-notes{margin:56px auto 0;max-width:680px}
.bench-notes p{color:#3c3d42;line-height:1.65;margin:12px 0}
.fmt-guide{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0}
.fmt-guide b{color:var(--ink)}

.quick-hint{margin:-8px 24px 16px;text-align:center;font-size:14px;color:var(--steel);min-height:21px}

/* converter hub cards */
.section-h{font-family:var(--font-display);font-weight:600;font-size:clamp(24px,3vw,32px);letter-spacing:-0.9px;margin:64px 0 6px}
.section-sub{margin:0 0 24px;color:var(--steel);max-width:60ch}
.pairs{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:14px}
.pair{display:flex;flex-direction:column;gap:4px;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;text-decoration:none;color:var(--ink);transition:border-color .15s ease}
.pair:hover{border-color:var(--accent);color:var(--ink)}
.pair--big{grid-column:span 2;background:var(--charcoal);border-color:var(--charcoal);color:#fff}
.pair--big:hover{border-color:var(--accent);color:#fff}
.pair--big .pair-sub{color:#a7a8ae}
.pair-title{font-family:var(--font-display);font-weight:600;font-size:18px;letter-spacing:-0.4px;margin-top:10px}
.pair-sub{font-size:14px;color:var(--steel);line-height:1.45;margin-top:8px}
.pair-tags{display:flex;align-items:center;gap:8px}
.pair-title--inline{margin-top:0;margin-left:4px}
.pt-arrow{width:20px;height:12px;color:var(--fog);flex:none}
.pair--big .pt-arrow{color:#77787e}
.ftag{font:700 14px/1 var(--font-body);letter-spacing:0.04em;padding:10px 12px 9px;border-radius:7px 7px 7px 0}
.ftag-png{background:#e3eafc;color:#1c46bc}
.ftag-jpg{background:#fdf2cf;color:#7a5a00}
.ftag-webp{background:#d9f7ee;color:#0b6a52}
.ftag-ico{background:#1a1a1e;color:#fff}
.ftag-svg{background:#ffe3e9;color:#a3243f}
.ftag-jfif{background:#ececee;color:#55565c}
.pair--big .ftag-svg{background:#ff8fa3;color:#3d0a15}
.pair--big .ftag-png{background:#5b83ec;color:#0b1c4d}
.tool-glyph{width:34px;height:34px;border-radius:9px;background:#e3eafc;color:#1c46bc;display:flex;align-items:center;justify-content:center}
.tool-glyph svg{width:20px;height:20px}
.tool-glyph--sun{background:#fdf2cf;color:#7a5a00}
@media(max-width:640px){.pair--big{grid-column:span 1}}

/* article copy under tools */
.copy{max-width:720px;margin:64px auto 0}
.copy h2{font-family:var(--font-display);font-weight:600;font-size:26px;letter-spacing:-0.7px;margin:0 0 10px}
.copy h3{font-family:var(--font-display);font-weight:600;font-size:19px;letter-spacing:-0.4px;margin:28px 0 6px}
.copy p{margin:10px 0;color:#3c3d42;max-width:68ch}
.copy ol{margin:10px 0;padding-left:22px;color:#3c3d42}
.copy li{margin:6px 0}
.copy table{border-collapse:collapse;margin:14px 0;font-size:14.5px}
.copy th,.copy td{text-align:left;padding:8px 14px 8px 0;border-bottom:1px solid var(--line)}
.copy th{color:var(--steel);font-weight:500}

/* legal */
.legal{max-width:720px;margin:0 auto;padding:48px 24px 72px}
.legal h1{font-size:clamp(30px,3.6vw,40px)}
.legal h2{font-family:var(--font-display);font-weight:600;font-size:20px;letter-spacing:-0.4px;margin:30px 0 6px}
.legal p{color:#3c3d42;max-width:66ch}
.legal .updated{font-size:12px;font-weight:500;letter-spacing:0.06em;text-transform:uppercase;color:var(--fog)}

/* footer */
.site-footer{background:#111114;color:#fff;margin-top:96px}
.footer-cols{display:flex;gap:48px;flex-wrap:wrap;justify-content:space-between;padding:48px 0 36px}
.f-brand{max-width:280px}
.f-brand .wordmark{color:#fff}
.f-brand p{font-size:14px;color:#8f9096;margin:10px 0 0}
.site-footer nav h3{font-size:12px;font-weight:500;letter-spacing:0.08em;color:#8f9096;margin:0 0 10px;text-transform:uppercase}
.site-footer nav a{display:block;font-size:14px;color:#c9cacf;text-decoration:none;margin-bottom:8px}
.site-footer nav a:hover{color:#fff}
.footer-bar{border-top:1px solid #232327}
.footer-bar .wrap{display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;padding-top:16px;padding-bottom:20px;font-size:13px;color:#77787e}

@media(max-width:560px){
  .hero{padding-top:36px}
  .dropzone{margin:16px;padding:40px 16px}
  .controls{padding:0 16px 16px}
  .ticket{padding:16px}
}
@media(prefers-reduced-motion:reduce){*{transition:none!important;animation:none!important}}

/* ---- quick buttons: neo-brutal, duotone backgrounds ---- */
.quick2{align-items:center;justify-content:center}
.qbtn2{display:inline-flex;align-items:center;gap:7px;font:700 13px var(--font-body);letter-spacing:0.03em;text-decoration:none;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}
.qb-ar{width:15px;height:11px;flex:none}
.qb-ic{width:17px;height:17px;flex:none}
.qb-file{width:34px;height:37px;flex:none;color:var(--ink)}
.tickets-foot{border-top:1px solid var(--line);padding:16px 24px;display:flex;justify-content:flex-end;align-items:center;gap:14px}
.tickets-foot .tcount{font-size:13px;color:var(--fog)}
.qv4{border:2px solid var(--ink);border-radius:8px;padding:8px 14px;box-shadow:3px 3px 0 var(--ink);color:var(--fc);background:linear-gradient(135deg,var(--fb1) 0%,var(--fb2) 100%)}
.qv4:hover{transform:translate(1px,1px);box-shadow:2px 2px 0 var(--ink)}
.qv4:active{transform:translate(3px,3px);box-shadow:0 0 0 var(--ink)}
.qv4.active{background:#dbe6fd;color:var(--ink);transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.qv4.active:hover{transform:translate(2px,2px);box-shadow:1px 1px 0 var(--ink)}
.qv4{min-height:57px;min-width:76px;justify-content:center}
.qb-webp{--fc:#0b6a52;--fb1:#fbfdfc;--fb2:#eef7f3}
.qb-jpg{--fc:#7a5200;--fb1:#fdfcf9;--fb2:#f8f3e4}
.qb-png{--fc:#1c46bc;--fb1:#fafbfe;--fb2:#eef2fb}
.qb-ico{--fc:#8f2140;--fb1:#fdfafb;--fb2:#f9edf0}
.qb-comp,.qb-rz,.qb-dpi{min-width:140px}
.qb-comp{--fc:#0e7d3f;--fb1:#fafdfb;--fb2:#eaf6ee}
.qb-rz{--fc:#0b5b70;--fb1:#fafdfe;--fb2:#ebf5f8}
.qb-dpi{--fc:#8a430b;--fb1:#fefbf8;--fb2:#f9f0e6}

/* per-format guide lists */
.sw{display:flex;gap:40px;flex-wrap:wrap;margin:14px 0}
.sw>div{flex:1 1 240px}
.sw h3{display:flex;align-items:center;gap:7px;font-family:var(--font-display);font-weight:600;font-size:14px;letter-spacing:0.04em;text-transform:uppercase;margin:0 0 6px}
.sw-ic{width:18px;height:18px}
.sw--copy{margin:20px 0}
.sw>div:first-child h3{color:var(--ok)}
.sw>div:last-child h3{color:var(--warn)}
.sw ul{margin:0;padding-left:20px;color:#3c3d42}
.sw li{margin:4px 0}
.fmt-guide .more{margin:8px 0 0;font-size:14px}
.fmt-note{font-size:14.5px;color:var(--steel);margin:10px 0 0}
.copy ul{margin:10px 0;padding-left:22px;color:#3c3d42}
.copy li{margin:6px 0}
/* good/bad samples */
.samples{display:flex;gap:20px;flex-wrap:wrap;margin:26px 0}
.samples figure{flex:1 1 280px;margin:0}
.samples img{width:100%;height:auto;border:1px solid var(--line);border-radius:10px;display:block}
.samples figcaption{font-size:13.5px;line-height:1.5;color:var(--steel);margin-top:8px}
.samples b.ok{color:var(--ok)}
.samples b.bad{color:var(--warn)}

/* find-format wizard */
.ff-bench{padding:8px 0 24px}
.ff-step{padding:20px 24px 4px}
.ff-q{font-family:var(--font-display);font-weight:600;font-size:19px;letter-spacing:-0.4px;margin:8px 0 14px}
.ff-opts{display:flex;gap:10px;flex-wrap:wrap}
.ff-opt{display:flex;flex-direction:column;align-items:center;gap:8px;min-width:128px;padding:16px 14px;background:var(--paper);border:2px solid var(--line);border-radius:12px;cursor:pointer;font:600 13.5px var(--font-body);color:var(--ink);transition:border-color .12s ease,transform .12s ease}
.ff-opt svg{width:44px;height:44px;color:var(--ink)}
.ff-opt:hover{border-color:var(--accent);transform:translateY(-2px)}
.ff-opt.picked{border-color:var(--accent);background:#f0f4fe}
.ff-result{margin:20px 24px 8px;border-top:1px solid var(--line);padding-top:20px}
.ff-verdict{display:flex;align-items:center;gap:18px;flex-wrap:wrap}
.ff-file{width:64px;height:70px;color:var(--ink)}
.ff-name{font-family:var(--font-display);font-weight:600;font-size:24px;letter-spacing:-0.6px;margin:0}
.ff-why{margin:6px 0 0;color:var(--steel);max-width:56ch}
.ff-actions{display:flex;gap:10px;margin:16px 0 0;flex-wrap:wrap}
.ff-alt{margin:12px 0 0;font-size:14px;color:var(--fog)}