:root {
  --red: #DA1E28;
  --red-deep: #A8141C;
  --ink: #141414;
  --ink-2: #1E1E1E;
  --ink-3: #2A2A2A;
  --line: #333;
  --paper: #F4F1EC;
  --mute: #9A9A9A;
  --font: "Helvetica Neue", Helvetica, -apple-system, BlinkMacSystemFont, sans-serif;
  color-scheme: dark;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.45;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
main, .top, .foot { max-width: 1080px; margin: 0 auto; padding-left: 16px; padding-right: 16px; }

.top { display: flex; align-items: center; justify-content: space-between; padding-top: 18px; padding-bottom: 18px; }
.logo { font-weight: 700; font-size: 20px; letter-spacing: -0.02em; text-decoration: none; display: flex; align-items: center; gap: 8px; }
.glyph { color: var(--red); font-size: 26px; line-height: 1; }
.top nav { display: flex; gap: 18px; font-size: 14px; }
.top nav a { text-decoration: none; color: var(--mute); }
.top nav a:hover { color: var(--paper); }

.hero { padding: 48px 0 56px; }
.kicker { text-transform: uppercase; letter-spacing: 0.12em; font-size: 12px; color: var(--mute); margin: 0 0 14px; }
h1 { font-size: clamp(56px, 13vw, 132px); line-height: 0.9; letter-spacing: -0.05em; margin: 0 0 22px; font-weight: 700; }
h1 em { font-style: normal; color: var(--red); }
.lede { font-size: clamp(17px, 2.2vw, 21px); max-width: 560px; color: #CFCBC4; margin: 0 0 32px; }

.drop {
  display: grid; justify-items: center; gap: 6px; text-align: center;
  border: 2px dashed #444; border-radius: 18px; padding: 34px 20px; cursor: pointer;
  background: var(--ink-2); transition: border-color .2s, background .2s; max-width: 640px;
}
.drop:hover, .drop.over { border-color: var(--red); background: #201415; }
.drop-icon { font-size: 40px; color: var(--red); line-height: 1; }
.drop-title { font-weight: 700; font-size: 19px; }
.drop-sub { color: var(--mute); font-size: 13px; max-width: 360px; }
.status-line { font-size: 13px; color: var(--mute); margin-top: 14px; min-height: 1em; }
.status-line .ok { color: #6BD48B; }
.status-line .bad { color: #FF7A7A; }

section { padding: 20px 0 48px; }
.section-head { margin-bottom: 20px; }
.section-head h2 { font-size: clamp(28px, 5vw, 40px); letter-spacing: -0.03em; margin: 0 0 6px; }
.section-head p { margin: 0; color: var(--mute); }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 12px; }
.card {
  position: relative; aspect-ratio: 9 / 14; border-radius: 16px; overflow: hidden; cursor: pointer;
  background: var(--ink-3); border: 1px solid var(--line); text-align: left; padding: 0; color: inherit; font: inherit;
}
.card video, .card img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.card .art { position: absolute; inset: 0; display: grid; place-items: center; font-size: 64px; color: rgba(255,255,255,.12); }
.card .meta { position: absolute; left: 0; right: 0; bottom: 0; padding: 40px 12px 12px; background: linear-gradient(transparent, rgba(0,0,0,.85)); }
.card .meta strong { display: block; font-size: 16px; }
.card .meta span { display: block; font-size: 12px; color: #CFCBC4; }
.card:hover { border-color: var(--red); }
.card .badge { position: absolute; top: 10px; left: 10px; background: var(--red); color: #fff; font-size: 11px; font-weight: 700; padding: 3px 8px; border-radius: 99px; }

.tree { display: grid; gap: 10px; }
.empty { color: var(--mute); }
.node { display: flex; gap: 12px; align-items: center; background: var(--ink-2); border: 1px solid var(--line); border-radius: 14px; padding: 10px; }
.node img { width: 54px; height: 84px; object-fit: cover; border-radius: 8px; background: var(--ink-3); }
.node .who { font-size: 13px; color: var(--mute); }
.node .what { font-weight: 700; }
.node .grow { flex: 1; min-width: 0; }
.node button { white-space: nowrap; }
.children { margin-left: 28px; padding-left: 12px; border-left: 2px solid var(--red); display: grid; gap: 10px; }

.foot { color: var(--mute); font-size: 13px; padding-top: 24px; padding-bottom: 40px; border-top: 1px solid var(--line); }

/* sheet */
.sheet { border: 0; padding: 0; background: transparent; color: inherit; max-width: 520px; width: calc(100% - 24px); }
.sheet::backdrop { background: rgba(0,0,0,.7); backdrop-filter: blur(4px); }
.sheet-inner { background: var(--ink-2); border: 1px solid var(--line); border-radius: 22px; padding: 20px; display: grid; gap: 16px; max-height: calc(100dvh - 32px); overflow: auto; }
.sheet-head { display: flex; justify-content: space-between; align-items: flex-start; }
.sheet-head h3 { margin: 0; font-size: 26px; letter-spacing: -0.02em; }
.sheet-head .kicker { margin-bottom: 4px; }
.icon-btn { background: var(--ink-3); border: 0; color: var(--paper); width: 36px; height: 36px; border-radius: 99px; cursor: pointer; font-size: 15px; }
.fork-of { margin: 0 0 12px; font-size: 14px; background: #2A1517; border: 1px solid var(--red-deep); padding: 10px 12px; border-radius: 12px; }

.photo-pick { display: flex; gap: 14px; align-items: center; border: 1px dashed #555; border-radius: 14px; padding: 12px; cursor: pointer; margin-bottom: 14px; }
.photo-pick img { width: 72px; height: 110px; object-fit: cover; border-radius: 10px; }
.photo-pick span { font-size: 14px; color: var(--mute); }
.photo-pick strong { color: var(--paper); font-size: 16px; }

.recipe-edit, .recipe-view { border: 1px solid var(--line); border-radius: 14px; padding: 12px 14px; margin-bottom: 14px; }
summary { cursor: pointer; font-weight: 700; }
summary span { font-weight: 400; color: var(--mute); }
.recipe-edit label { display: grid; gap: 6px; font-size: 13px; color: var(--mute); margin-top: 12px; }
textarea, input, select { font: inherit; font-size: 14px; color: var(--paper); background: var(--ink); border: 1px solid var(--line); border-radius: 10px; padding: 10px; width: 100%; }
textarea { resize: vertical; }
.row { display: grid; grid-template-columns: 1fr 1.4fr 1.6fr; gap: 10px; }

.cta, .ghost {
  display: inline-flex; justify-content: center; align-items: center; gap: 8px; width: 100%;
  font: inherit; font-weight: 700; font-size: 17px; border-radius: 99px; padding: 15px 20px; cursor: pointer; text-decoration: none; border: 0;
}
.cta { background: var(--red); color: #fff; }
.cta:hover { background: #F02633; }
.cta:disabled { background: #4A2A2C; color: #999; cursor: not-allowed; }
.ghost { background: transparent; color: var(--paper); border: 1px solid #555; }
.ghost:hover { border-color: var(--paper); }
.ghost.small { font-size: 14px; padding: 10px 14px; margin-top: 10px; }
.fine { font-size: 12px; color: var(--mute); margin: 10px 0 0; text-align: center; }
.actions { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 12px 0; }
.actions .cta, .actions .ghost { font-size: 15px; }

#stepDone video { width: 100%; border-radius: 14px; background: #000; aspect-ratio: 9 / 16; max-height: 60dvh; }
pre { font-size: 11px; white-space: pre-wrap; word-break: break-word; color: #CFCBC4; max-height: 240px; overflow: auto; }

#stepWait { text-align: center; padding: 30px 0; }
.wait-title { font-weight: 700; font-size: 18px; margin: 18px 0 0; }
.loader { width: 64px; height: 64px; margin: 0 auto; border-radius: 99px; border: 4px solid var(--ink-3); border-top-color: var(--red); animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.error { background: #3A1214; color: #FFB4B4; border-radius: 12px; padding: 12px; margin: 0; font-size: 14px; }

@media (max-width: 560px) {
  .top nav a:nth-child(2) { display: none; }
  .hero { padding-top: 24px; }
  .row { grid-template-columns: 1fr 1fr; }
  .row label:last-child { grid-column: 1 / -1; }
  .sheet { width: 100%; max-width: none; margin: auto 0 0; }
  .sheet-inner { border-radius: 22px 22px 0 0; max-height: 92dvh; }
}
@media (prefers-reduced-motion: reduce) { .loader { animation-duration: 3s; } }

#stepRead { text-align: center; padding: 10px 0 20px; }
#readStrip { width: 100%; border-radius: 14px; margin-bottom: 18px; background: #000; }
#stepRead .loader { width: 48px; height: 48px; }