:root{
  --bg:#0c0d0f; --panel:#15171a; --panel2:#1c1f23; --line:#2a2e34; --text:#f2f3f5; --muted:#9aa1ab;
  --accent:#1b8fe0; --accent2:#4db1ff; --ok:#3ecf8e; --warn:#f5b84a; --bad:#ff6b6b; --r:14px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 Barlow,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,.brand,.eyebrow,.steps,.btn,.num{font-family:"Barlow Condensed",Barlow,system-ui,sans-serif}
a{color:var(--accent2)}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px}
.muted{color:var(--muted)} .small{font-size:14px}

/* header */
.top{border-bottom:1px solid var(--line);background:rgba(12,13,15,.85);backdrop-filter:blur(8px);position:sticky;top:0;z-index:20}
.top-in{display:flex;justify-content:space-between;align-items:center;height:60px}
.brand{font-size:26px;font-weight:700;letter-spacing:.14em;color:var(--text);text-decoration:none}
.brand span{color:var(--accent2)} .brand em{font-style:normal;font-weight:500;letter-spacing:.08em;color:var(--muted);font-size:20px;margin-left:6px}
.shop{color:var(--muted);text-decoration:none;font-size:14px} .shop:hover{color:var(--text)}

/* hero */
.hero{padding:64px 0 36px;background:radial-gradient(900px 340px at 85% -10%,rgba(27,143,224,.22),transparent 70%)}
.eyebrow{margin:0 0 8px;color:var(--accent2);text-transform:uppercase;letter-spacing:.2em;font-weight:600;font-size:15px}
h1{margin:0;font-size:clamp(44px,8vw,92px);line-height:.95;font-weight:700;text-transform:uppercase;letter-spacing:.01em}
.lead{max-width:560px;color:var(--muted);font-size:18px;margin:20px 0 26px}
.steps{display:flex;flex-wrap:wrap;gap:10px;list-style:none;margin:0;padding:0;font-size:18px;font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.steps li{display:flex;align-items:center;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:999px;padding:6px 18px 6px 8px}
.steps b{display:grid;place-items:center;width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;font-size:16px}

.banner{background:#3a2a10;color:#ffd9a0;border-block:1px solid #6b4a14;padding:12px 20px;text-align:center;font-size:15px}

/* steps */
.step{padding:44px 0 8px;border-top:1px solid var(--line);margin-top:36px}
.step-head{display:flex;gap:16px;align-items:center;margin-bottom:22px}
.step-head h2{margin:0;font-size:36px;line-height:1;text-transform:uppercase;letter-spacing:.03em}
.step-head p{margin:4px 0 0;color:var(--muted)}
.num{display:grid;place-items:center;flex:none;width:46px;height:46px;border-radius:12px;background:var(--accent);font-size:26px;font-weight:700}

/* upload */
.drop{display:flex;flex-direction:column;align-items:center;gap:6px;text-align:center;padding:34px 20px;border:2px dashed #3a4048;border-radius:var(--r);background:var(--panel);cursor:pointer;transition:.15s;color:var(--muted)}
.drop strong{color:var(--text);font-weight:600} .drop:hover,.drop:focus-visible,.drop.over{border-color:var(--accent2);background:#13202b;outline:none}
.tips{margin:16px 0 0;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:12px 18px;color:var(--muted)}
.tips summary{cursor:pointer;color:var(--text);font-weight:600}
.tips ul{margin:10px 0 4px;padding-left:20px} .tips li{margin:4px 0} .tips b{color:var(--text);font-weight:600}

.photos{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:16px;margin-top:20px}
.photo{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;display:flex;flex-direction:column}
.photo.pass{border-color:rgba(62,207,142,.6)} .photo.fail{border-color:rgba(255,107,107,.55)}
.photo .im{position:relative;aspect-ratio:4/3;background:#000}
.photo img{width:100%;height:100%;object-fit:cover;display:block}
.photo .rm{position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:50%;border:0;background:rgba(0,0,0,.65);color:#fff;font-size:18px;cursor:pointer}
.photo .rm:hover{background:#000}
.photo .body{padding:12px 14px 14px;display:flex;flex-direction:column;gap:6px;font-size:14px}
.badge{display:inline-flex;align-items:center;gap:7px;font-weight:600;font-size:15px}
.badge i{width:10px;height:10px;border-radius:50%;background:var(--muted);display:inline-block}
.pass .badge i{background:var(--ok)} .fail .badge i{background:var(--bad)} .checking .badge i{background:var(--accent2);animation:pulse 1s infinite}
@keyframes pulse{50%{opacity:.25}}
.photo ul{margin:0;padding-left:18px;color:var(--muted)} .photo .tipline{color:var(--warn)}
.score{margin-left:auto;color:var(--muted);font-weight:500;font-size:13px}

/* catalogue */
.tools{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:20px}
input[type=search],select{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:10px;padding:11px 14px;font:inherit}
input[type=search]{flex:1 1 220px;min-width:0} select{cursor:pointer}
input:focus,select:focus,button:focus-visible,.card:focus-visible{outline:2px solid var(--accent2);outline-offset:2px}
.chips{display:flex;flex-wrap:wrap;gap:6px}
.chip{border:1px solid var(--line);background:var(--panel);color:var(--text);border-radius:999px;padding:8px 14px;font:inherit;font-size:14px;cursor:pointer}
.chip[aria-pressed=true]{background:var(--accent);border-color:var(--accent)}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.card{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;cursor:pointer;text-align:left;color:inherit;font:inherit;padding:0;display:flex;flex-direction:column;transition:.15s}
.card:hover{border-color:#4a525c;transform:translateY(-2px)}
.card.sel{border-color:var(--accent2);box-shadow:0 0 0 2px var(--accent2)}
.card .pic{aspect-ratio:1;background:#fff;display:grid;place-items:center}
.card img{width:100%;height:100%;object-fit:contain;display:block}
.card .cb{padding:12px 14px 14px;display:flex;flex-direction:column;gap:2px}
.card h3{margin:0;font-size:24px;letter-spacing:.04em;line-height:1.1}
.card .pr{color:var(--muted);font-size:14px} .card .pr b{color:var(--text);font-size:16px}
.card .sz{color:var(--muted);font-size:13px}
.tag{position:absolute;top:10px;left:10px;background:var(--accent);color:#fff;border-radius:6px;padding:2px 9px;font:600 13px "Barlow Condensed";letter-spacing:.06em;text-transform:uppercase;z-index:1}
.tag.alt{left:auto;right:10px;background:#000;color:#fff}
.tick{position:absolute;right:10px;bottom:84px;background:var(--accent2);color:#04131f;font-weight:700;border-radius:999px;padding:3px 12px;font-size:13px;display:none}
.card.sel .tick{display:block}

/* dialog */
dialog{border:1px solid var(--line);border-radius:18px;background:var(--panel);color:var(--text);padding:0;width:min(920px,calc(100vw - 24px));max-height:calc(100vh - 24px);overflow:auto}
dialog::backdrop{background:rgba(0,0,0,.72)}
.x{position:absolute;top:10px;right:12px;z-index:2;width:38px;height:38px;border-radius:50%;border:0;background:rgba(0,0,0,.6);color:#fff;font-size:24px;cursor:pointer}
.dlg-in{display:grid;grid-template-columns:1.1fr 1fr}
.dlg-img{background:#fff;padding:12px;display:flex;flex-direction:column;gap:10px}
.dlg-img>img{width:100%;aspect-ratio:1;object-fit:contain}
.thumbs{display:flex;gap:8px;flex-wrap:wrap}
.thumbs button{width:64px;height:64px;padding:2px;border:2px solid #d5d8dd;border-radius:10px;background:#fff;cursor:pointer}
.thumbs button[aria-pressed=true]{border-color:var(--accent)} .thumbs img{width:100%;height:100%;object-fit:contain}
.dlg-info{padding:28px 26px;display:flex;flex-direction:column;gap:12px}
.dlg-info h3{margin:0;font-size:42px;line-height:1;letter-spacing:.04em}
.price{margin:0;font-size:20px;font-weight:600}.meta{margin:0;color:var(--muted);font-size:14px}
label{display:flex;flex-direction:column;gap:6px;font-weight:600;font-size:14px}
.dlg-btns{display:flex;flex-direction:column;gap:10px;margin-top:6px}

.btn{display:inline-flex;justify-content:center;align-items:center;gap:8px;border-radius:12px;border:1px solid var(--line);background:var(--panel2);color:var(--text);padding:13px 22px;font-size:20px;font-weight:600;letter-spacing:.05em;text-transform:uppercase;cursor:pointer;text-decoration:none}
.btn:hover{border-color:#5a626d}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff} .btn.primary:hover{background:#2aa0f2}
.btn:disabled{opacity:.4;cursor:not-allowed}.btn.ghost{background:transparent}

/* step 3 */
.summary{display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;background:var(--panel);border:1px solid var(--line);border-radius:var(--r);padding:16px 18px}
.sum-wheel{display:flex;gap:14px;align-items:center;color:var(--muted)}
.sum-wheel img{width:72px;height:72px;object-fit:contain;background:#fff;border-radius:10px}
.sum-wheel b{display:block;color:var(--text);font:700 26px "Barlow Condensed";letter-spacing:.04em;line-height:1.1}
.sum-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.hint{margin:0;color:var(--muted);font-size:14px;max-width:300px}
.results{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,520px),1fr));gap:18px;margin-top:18px}
.res{background:var(--panel);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.cmp{position:relative;background:#000;user-select:none;touch-action:pan-y}
.cmp img{display:block;width:100%;height:auto}
.cmp .after{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cmp .before{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;clip-path:inset(0 calc(100% - var(--p,50%)) 0 0)}
.cmp .bar{position:absolute;top:0;bottom:0;left:var(--p,50%);width:2px;background:#fff;box-shadow:0 0 8px rgba(0,0,0,.6);pointer-events:none}
.cmp .bar::after{content:"◀ ▶";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);background:#fff;color:#000;font-size:10px;letter-spacing:2px;padding:7px 8px;border-radius:999px;white-space:nowrap}
.cmp input[type=range]{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.lab{position:absolute;top:10px;background:rgba(0,0,0,.65);color:#fff;font:600 13px "Barlow Condensed";letter-spacing:.1em;text-transform:uppercase;padding:3px 10px;border-radius:6px;pointer-events:none}
.lab.l{left:10px}.lab.r{right:10px}
.res .rb{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:12px 14px;flex-wrap:wrap}
.res .rb .btn{font-size:16px;padding:9px 16px}
.link{background:none;border:0;padding:0;margin-top:4px;color:var(--muted);font:inherit;font-size:13px;text-decoration:underline;cursor:pointer}.link:hover{color:var(--text)}
.working{display:grid;place-items:center;gap:12px;padding:56px 20px;text-align:center;color:var(--muted)}
.spin{width:34px;height:34px;border:3px solid var(--line);border-top-color:var(--accent2);border-radius:50%;animation:rot .9s linear infinite}
@keyframes rot{to{transform:rotate(360deg)}}
.err{color:var(--bad);padding:18px;text-align:center}
.fine{color:var(--muted);font-size:13px;margin:26px 0 60px;max-width:760px}

@media (max-width:700px){
  .hero{padding-top:40px} .step-head h2{font-size:30px}
  .dlg-in{grid-template-columns:1fr} .dlg-info h3{font-size:34px}
  .sum-actions{width:100%} .sum-actions .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}