:root {
  color-scheme: dark;
  --bg: #090b10;
  --panel: #0f1219;
  --ink: #f5f4ee;
  --muted: #9499a6;
  --line: #2a2f3a;
  --accent: #ffdc57;
  font-family: "Segoe UI", Arial, sans-serif;
}

* { box-sizing: border-box; }
html { background: var(--bg); scroll-behavior: smooth; }
body { margin: 0; min-width: 320px; min-height: 100vh; color: var(--ink); background: var(--bg); }
button, a { font: inherit; }
button { color: inherit; }
.skip-link { position: fixed; left: 1rem; top: -5rem; z-index: 100; padding: .8rem 1rem; background: var(--accent); color: #111; font-weight: 800; }
.skip-link:focus { top: 1rem; }
.app-shell { width: min(1600px, 100%); margin: 0 auto; min-height: 100vh; padding: 0 30px 30px; }
.topbar { height: 86px; display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; border-bottom: 1px solid var(--line); }
.brand { justify-self: start; display: inline-flex; gap: 12px; align-items: center; color: var(--ink); text-decoration: none; font-weight: 900; letter-spacing: .08em; }
.brand-mark { width: 26px; height: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 3px; transform: rotate(45deg); }
.brand-mark i { display: block; background: var(--accent); }
.edition { margin: 0; color: var(--muted); font: 700 .75rem/1 monospace; letter-spacing: .12em; }
.edition span { color: var(--accent); }
.about-button { justify-self: end; border: 0; border-bottom: 1px solid currentColor; padding: 6px 0; background: transparent; cursor: pointer; font-size: .88rem; }
.about-button:hover, .about-button:focus-visible { color: var(--accent); }

.workspace { display: grid; grid-template-columns: 330px minmax(0, 1fr); min-height: calc(100vh - 116px); }
.catalog-panel { padding: 28px 26px 20px 0; border-right: 1px solid var(--line); display: flex; flex-direction: column; min-height: 0; }
.section-heading { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 22px; color: var(--muted); font: 700 .73rem/1 monospace; letter-spacing: .12em; text-transform: uppercase; }
.section-heading strong { font-size: 1.1rem; color: var(--ink); }
.catalog { display: grid; gap: 10px; }
.character-card { width: 100%; display: grid; grid-template-columns: 78px 1fr 24px; align-items: center; gap: 14px; padding: 10px; border: 1px solid transparent; background: #12151d; cursor: pointer; text-align: left; transition: border-color .18s ease, transform .18s ease, background .18s ease; }
.character-card:hover { transform: translateX(4px); background: #171b24; }
.character-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.character-card[aria-current="true"] { border-color: var(--accent); background: #1a1d22; }
.card-image { width: 78px; height: 88px; object-fit: cover; background: #242936; }
.card-copy { min-width: 0; }
.card-copy small { display: block; margin-bottom: 7px; color: var(--muted); font: 700 .65rem/1 monospace; letter-spacing: .1em; text-transform: uppercase; }
.card-copy strong { display: block; font-size: .95rem; line-height: 1.15; }
.card-arrow { color: var(--muted); font-size: 1.1rem; }
.character-card[aria-current="true"] .card-arrow { color: var(--accent); }
.catalog-note { margin: auto 0 0; padding-top: 26px; color: #6f7582; font-size: .75rem; line-height: 1.55; }

.viewer-panel { min-width: 0; display: grid; grid-template-columns: minmax(0, 1fr) 190px; grid-template-rows: auto 1fr auto; padding-left: 38px; }
.viewer-meta { grid-column: 1 / -1; display: flex; justify-content: space-between; align-items: flex-start; padding: 34px 0 18px; }
.eyebrow { display: block; margin-bottom: 12px; color: var(--accent); font: 800 .7rem/1 monospace; letter-spacing: .15em; }
h1 { margin: 0; max-width: none; font-size: clamp(2.35rem, 4.3vw, 4.75rem); font-weight: 900; line-height: .92; letter-spacing: -.065em; text-transform: uppercase; white-space: nowrap; }
.model-stats { display: grid; grid-template-columns: auto auto; gap: 7px 16px; padding-top: 4px; font: 700 .68rem/1 monospace; letter-spacing: .1em; }
.model-stats span { color: var(--muted); }
.model-stats strong { text-align: right; }
.stage { position: relative; grid-column: 1 / -1; min-height: 410px; overflow: hidden; background: radial-gradient(circle at 50% 44%, #242a36 0, #151922 38%, #0c0f15 70%); border: 1px solid var(--line); }
.stage::before { content: attr(data-index); position: absolute; right: -1.5vw; top: -4.5vw; color: rgba(255,255,255,.035); font-size: clamp(10rem, 28vw, 30rem); line-height: 1; font-weight: 900; letter-spacing: -.1em; z-index: 0; }
.stage-grid { position: absolute; inset: 0; opacity: .22; background-image: linear-gradient(#4d5668 1px, transparent 1px), linear-gradient(90deg, #4d5668 1px, transparent 1px); background-size: 42px 42px; mask-image: linear-gradient(to top, #000, transparent 68%); }
.model-frame { position: absolute; inset: 0; z-index: 1; width: 100%; height: 100%; border: 0; background: transparent; outline: none; --progress-bar-color: var(--accent); --poster-color: transparent; }
.loading-track { position: absolute; left: 0; right: 0; top: 0; height: 3px; background: rgba(255,255,255,.06); z-index: 4; opacity: 0; transition: opacity .2s; }
.loading-track.is-loading { opacity: 1; }
.loading-track i { display: block; width: 0; height: 100%; background: var(--accent); transition: width .15s; }
.gesture-hint { position: absolute; left: 20px; bottom: 16px; z-index: 2; margin: 0; color: var(--muted); font: 700 .65rem/1 monospace; letter-spacing: .1em; pointer-events: none; }
.gesture-hint span { color: var(--accent); font-size: 1.1rem; vertical-align: -1px; }
.gesture-hint b { margin: 0 7px; }
.viewer-actions { position: absolute; right: 14px; top: 14px; z-index: 3; display: flex; gap: 7px; }
.viewer-actions button { border: 1px solid rgba(255,255,255,.16); background: rgba(8,10,14,.82); padding: 10px 12px; cursor: pointer; font-size: .72rem; backdrop-filter: blur(8px); }
.viewer-actions button:hover, .viewer-actions button:focus-visible, .viewer-actions button[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); }
.viewer-actions span { margin-right: 4px; }
.detail-strip { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr minmax(300px, .8fr); gap: 30px; align-items: center; padding: 19px 0 0; }
.detail-strip p { margin: 0; max-width: 650px; color: #b7bbc5; line-height: 1.55; font-size: .93rem; }
.model-origin { display: grid; grid-template-columns: 1fr auto; gap: 5px 12px; align-items: center; padding: 12px 14px; border-left: 2px solid var(--accent); background: #11141b; color: var(--ink); }
.model-origin span { color: var(--muted); font: 700 .64rem/1 monospace; letter-spacing: .1em; text-transform: uppercase; }
.model-origin strong { grid-column: 1; font-size: .76rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.model-origin i { grid-column: 2; grid-row: 1 / 3; color: var(--accent); font-style: normal; font-size: 1.25rem; }

.about-panel { position: fixed; z-index: 20; top: 0; right: 0; width: min(470px, 92vw); height: 100vh; padding: 84px 48px; background: #151922; border-left: 1px solid var(--line); transform: translateX(102%); transition: transform .28s ease; }
.about-panel.is-open { transform: translateX(0); }
.about-panel button { position: absolute; right: 28px; top: 24px; width: 42px; height: 42px; border: 1px solid var(--line); background: transparent; font-size: 1.7rem; cursor: pointer; }
.about-panel h2 { margin: 18px 0 28px; font-size: clamp(2.5rem, 5vw, 4.4rem); line-height: .92; letter-spacing: -.06em; text-transform: uppercase; }
.about-panel p { color: #b7bbc5; line-height: 1.7; }
.scrim { position: fixed; z-index: 19; inset: 0; background: rgba(0,0,0,.62); backdrop-filter: blur(2px); }

@media (max-width: 900px) {
  .app-shell { padding: 0 18px 24px; }
  .topbar { grid-template-columns: 1fr auto; height: 72px; }
  .edition { display: none; }
  .workspace { display: flex; flex-direction: column; }
  .viewer-panel { order: 1; padding: 0; display: block; }
  .viewer-meta { padding: 28px 0 16px; }
  h1 { font-size: clamp(2.25rem, 9vw, 4.5rem); }
  .stage { min-height: min(64vh, 580px); }
  .detail-strip { display: grid; grid-template-columns: 1fr; gap: 14px; padding: 16px 0 28px; }
  .catalog-panel { order: 2; padding: 24px 0 0; border: 0; border-top: 1px solid var(--line); }
  .catalog { grid-template-columns: repeat(3, 1fr); }
  .character-card { grid-template-columns: 58px 1fr; }
  .card-image { width: 58px; height: 68px; }
  .card-arrow { display: none; }
  .catalog-note { margin-top: 18px; }
}

@media (max-width: 620px) {
  .brand { font-size: .88rem; }
  .brand-mark { width: 21px; height: 21px; }
  .about-button { font-size: .8rem; }
  .model-stats { display: none; }
  h1 { font-size: clamp(1.55rem, 7.5vw, 2.65rem); }
  .stage { min-height: 480px; }
  .viewer-actions { left: 10px; right: 10px; justify-content: flex-end; }
  .viewer-actions button { padding: 9px; }
  .viewer-actions button span { margin: 0; }
  .viewer-actions button { font-size: 0; }
  .viewer-actions button span { font-size: 1rem; }
  .gesture-hint { font-size: .58rem; }
  .catalog { grid-template-columns: 1fr; }
  .character-card { grid-template-columns: 70px 1fr 24px; }
  .card-image { width: 70px; height: 76px; }
  .card-arrow { display: block; }
  .about-panel { padding: 74px 28px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .01ms !important; animation-duration: .01ms !important; }
}