/* Carousel Bench — single light theme on purpose, so every tester sees the
   same thing regardless of their OS setting. */
:root{
  --ink:#131A22; --ink-2:#39434E; --muted:#6B7480; --faint:#98A0AA;
  --paper:#F4F5F2; --surface:#FFFFFF; --sunk:#F0F1EE;
  --rule:#E2E4DF; --rule-firm:#CBCFC7;
  --accent:#14625D; --accent-ink:#0E4B47; --accent-soft:#E3EFEC;
  --flag:#8A6412; --flag-soft:#FAF0D8;
  --bad:#8E3B22; --bad-soft:#FAE6DF;
  --shadow-sm:0 1px 2px rgba(19,26,34,.05);
  --shadow:0 1px 3px rgba(19,26,34,.06), 0 12px 32px rgba(19,26,34,.07);
  --radius:12px;
}
*{box-sizing:border-box}
html,body{background:var(--paper)}
body{margin:0;color:var(--ink);font:16px/1.55 -apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline}
button{font:inherit}
.mono{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums}

/* ---- chrome ---- */
.topbar{position:sticky;top:0;z-index:40;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:0 clamp(16px,3vw,32px);height:60px;background:rgba(255,255,255,.92);backdrop-filter:blur(12px);border-bottom:1px solid var(--rule)}
.brand{display:flex;align-items:center;gap:10px;font-weight:750;letter-spacing:-.022em;font-size:1.02rem}
.brand .mark{display:grid;place-items:center;width:28px;height:28px;border-radius:8px;background:var(--ink);color:#fff;font-size:11px;font-weight:800;letter-spacing:.04em}
.topnav{display:flex;gap:2px;align-items:center}
.topnav a,.topnav button{font-size:13.5px;font-weight:550;padding:7px 13px;border-radius:8px;border:1px solid transparent;background:none;color:var(--muted);cursor:pointer;text-decoration:none}
.topnav a:hover,.topnav button:hover{background:var(--sunk);color:var(--ink);text-decoration:none}
.topnav a.on{background:var(--accent-soft);color:var(--accent-ink);font-weight:650}

.wrap{max-width:1120px;margin:0 auto;padding:clamp(22px,4vw,40px) clamp(16px,3vw,32px) 80px}
.wrap.narrow{max-width:760px}
h1{font-size:clamp(1.6rem,3vw,2.1rem);line-height:1.1;margin:0 0 6px;letter-spacing:-.032em;font-weight:750;text-wrap:balance}
h2{font-size:1.18rem;margin:0;letter-spacing:-.022em;font-weight:700}
.sub{color:var(--muted);font-size:.95rem;margin:0 0 26px;max-width:62ch}
.eyebrow{font-size:10.5px;font-weight:800;letter-spacing:.15em;text-transform:uppercase;color:var(--faint)}
.card{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);box-shadow:var(--shadow-sm)}

/* ---- step rail ---- */
.rail{display:flex;align-items:center;gap:0;margin:0 0 26px;overflow-x:auto;padding-bottom:2px}
.rail .node{display:flex;align-items:center;gap:8px;flex:none}
.rail .bead{display:grid;place-items:center;width:24px;height:24px;border-radius:50%;font-size:11px;font-weight:800;
  background:var(--sunk);color:var(--faint);border:1px solid var(--rule);transition:.16s}
.rail .name{font-size:12.5px;font-weight:600;color:var(--faint);white-space:nowrap}
.rail .link{background:none;border:0;padding:0;cursor:default;display:flex;align-items:center;gap:8px}
.rail .done .bead{background:var(--accent-soft);color:var(--accent-ink);border-color:var(--accent-soft)}
.rail .done .name{color:var(--accent-ink)}
.rail .done .link{cursor:pointer}
.rail .done .link:hover .name{text-decoration:underline}
.rail .now .bead{background:var(--accent);color:#fff;border-color:var(--accent)}
.rail .now .name{color:var(--ink);font-weight:700}
.rail .bar{flex:1;min-width:14px;height:1px;background:var(--rule);margin:0 10px}

/* ---- step panel ---- */
.panel{padding:clamp(22px,3vw,32px);animation:in .22s ease-out}
@keyframes in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){.panel{animation:none}}
.panel .q{font-size:clamp(1.24rem,2.4vw,1.55rem);font-weight:700;letter-spacing:-.026em;margin:0 0 6px;text-wrap:balance}
.panel .hint{color:var(--muted);font-size:.93rem;margin:0 0 22px;max-width:64ch}

.opts{display:grid;grid-template-columns:repeat(auto-fill,minmax(272px,1fr));gap:10px}
.opts.tight{grid-template-columns:repeat(auto-fill,minmax(150px,1fr))}
.opt{text-align:left;padding:14px 16px;border:1px solid var(--rule);border-radius:10px;background:var(--surface);
  cursor:pointer;display:flex;flex-direction:column;gap:4px;transition:.14s;box-shadow:var(--shadow-sm)}
.opt:hover:not(:disabled){border-color:var(--accent);background:var(--accent-soft);transform:translateY(-1px)}
.opt:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.opt:disabled{opacity:.4;cursor:not-allowed;box-shadow:none}
.opt b{font-size:.95rem;font-weight:650;letter-spacing:-.012em}
.opt span{font-size:.79rem;color:var(--muted);line-height:1.45}
.opt.sel{border-color:var(--accent);background:var(--accent-soft)}

.groupname{grid-column:1/-1;font-size:10.5px;font-weight:800;letter-spacing:.13em;text-transform:uppercase;color:var(--faint);margin:14px 0 -2px}
.groupname:first-child{margin-top:0}

.fieldrow{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.fieldrow label{font-size:11.5px;letter-spacing:.05em;text-transform:uppercase;color:var(--ink-2);font-weight:750}
input,textarea,select{font:inherit;width:100%;padding:11px 13px;border:1px solid var(--rule-firm);border-radius:9px;background:var(--surface);color:var(--ink)}
textarea{min-height:80px;resize:vertical;line-height:1.5}
input:focus,textarea:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:transparent}
.charhint{font-size:11.5px;color:var(--faint)}

.btn{font-weight:650;padding:11px 20px;border-radius:9px;border:1px solid var(--accent);background:var(--accent);color:#fff;cursor:pointer;transition:.14s}
.btn:hover:not(:disabled){background:var(--accent-ink);border-color:var(--accent-ink)}
.btn:disabled{opacity:.5;cursor:progress}
.btn.ghost{background:transparent;color:var(--accent);border-color:var(--rule-firm)}
.btn.ghost:hover:not(:disabled){background:var(--sunk);color:var(--accent-ink);border-color:var(--rule-firm)}
.btn.lg{padding:13px 26px;font-size:1.02rem}
.actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin-top:22px;padding-top:20px;border-top:1px solid var(--rule)}
.actions .spacer{flex:1}

.err{background:var(--bad-soft);color:var(--bad);border-left:3px solid var(--bad);padding:12px 15px;border-radius:0 8px 8px 0;margin:16px 0 0;font-size:.92rem}
.note{background:var(--flag-soft);color:var(--flag);border-left:3px solid var(--flag);padding:11px 15px;border-radius:0 8px 8px 0;font-size:.89rem;margin:0 0 18px}
.recap{display:flex;flex-wrap:wrap;gap:7px;margin:0 0 20px}
.chip{font-size:11.5px;font-weight:600;padding:5px 11px;border-radius:999px;background:var(--sunk);color:var(--ink-2);border:1px solid var(--rule)}
.chip.a{background:var(--accent-soft);color:var(--accent-ink);border-color:transparent;font-weight:700}

/* ---- carousel viewer: one slide at a time, never cropped ---- */
.viewer{background:var(--surface);border:1px solid var(--rule);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow)}
.viewer .vhead{display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:16px 20px 0}
.viewer .vhead h2{letter-spacing:-.024em}
/* The stage IS the selected aspect ratio, so a 4:5 card is a tall frame and a
   16:9 card is a wide one. No letterboxing, no dead black space, and nothing
   can overflow because the frame and the image are the same shape.
   --ar is set per run from the chosen ratio, then corrected to the image's
   real intrinsic ratio once the first card loads. */
.stage{position:relative;background:#0E1216;margin:14px auto 0;overflow:hidden;
  --ar:0.8; --maxh:min(74vh,660px);
  aspect-ratio:var(--ar); width:min(100%,calc(var(--maxh) * var(--ar))); max-height:var(--maxh)}
.track{display:flex;height:100%;width:100%;transition:transform .32s cubic-bezier(.4,0,.2,1);touch-action:pan-y}
@media (prefers-reduced-motion:reduce){.track{transition:none}}
.slide{flex:0 0 100%;height:100%;min-width:0}
.slide img{width:100%;height:100%;object-fit:contain;display:block}
.nav{position:absolute;top:50%;transform:translateY(-50%);width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;border:0;background:rgba(255,255,255,.92);color:var(--ink);cursor:pointer;
  box-shadow:0 2px 10px rgba(0,0,0,.28);font-size:17px;line-height:1;transition:.14s}
.nav:hover:not(:disabled){background:#fff;transform:translateY(-50%) scale(1.06)}
.nav:disabled{opacity:0;pointer-events:none}
.nav.prev{left:14px}.nav.next{right:14px}
.counter{position:absolute;top:14px;right:16px;background:rgba(18,22,26,.72);color:#fff;font-size:12px;font-weight:650;
  padding:5px 11px;border-radius:999px;letter-spacing:.02em}
.dots{display:flex;justify-content:center;gap:7px;padding:14px 0 4px}
.dot{width:7px;height:7px;border-radius:50%;border:0;padding:0;background:var(--rule-firm);cursor:pointer;transition:.16s}
.dot.on{background:var(--accent);width:22px;border-radius:4px}
.caption{padding:4px 20px 18px;display:flex;align-items:baseline;justify-content:space-between;gap:14px;flex-wrap:wrap}
.caption .role{font-size:11px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;color:var(--accent-ink)}
.caption .line{font-size:.95rem;color:var(--ink-2);flex:1;min-width:220px}
.viewer .foot{border-top:1px solid var(--rule);padding:13px 20px;display:flex;gap:6px 20px;flex-wrap:wrap;
  font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums}
.viewer .foot b{color:var(--ink);font-weight:650}

/* ---- gallery ---- */
.runs{display:flex;flex-direction:column;gap:22px}
.filters{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 22px}
.filters select{width:auto;min-width:190px}
.empty{padding:56px 24px;text-align:center;color:var(--muted);border:1px dashed var(--rule-firm);border-radius:var(--radius);background:var(--surface)}
details.brief{border-top:1px solid var(--rule);padding:14px 20px 4px}
details.brief summary{cursor:pointer;font-size:.86rem;color:var(--muted);font-weight:600;list-style:none}
details.brief summary::-webkit-details-marker{display:none}
details.brief summary::before{content:"▸ ";color:var(--faint)}
details.brief[open] summary::before{content:"▾ "}
details.brief .body{padding:14px 0 12px;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:16px}
details.brief .body div span{display:block;font-size:10.5px;font-weight:800;letter-spacing:.1em;text-transform:uppercase;color:var(--faint);margin-bottom:3px}
details.brief .body div p{margin:0;font-size:.88rem;color:var(--ink-2);line-height:1.5}

.spin{display:inline-block;width:14px;height:14px;border:2px solid var(--rule-firm);border-top-color:var(--accent);border-radius:50%;animation:sp .7s linear infinite;vertical-align:-2px;margin-right:8px}
@keyframes sp{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin{animation:none}}
.login{max-width:370px;margin:12vh auto;padding:30px}
.progress{display:flex;flex-direction:column;gap:12px;align-items:center;padding:52px 24px;text-align:center;color:var(--muted)}
.progress .bar{width:min(340px,80%);height:4px;border-radius:2px;background:var(--sunk);overflow:hidden}
.progress .bar i{display:block;height:100%;width:36%;background:var(--accent);border-radius:2px;animation:slide 1.5s ease-in-out infinite}
@keyframes slide{0%{transform:translateX(-100%)}100%{transform:translateX(340%)}}
@media (prefers-reduced-motion:reduce){.progress .bar i{animation:none;width:100%}}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}