/* Layout: a night-shift production floor — black steel ground, hazard-tape accent, one wide display face. */
  :root {
    --bg: #0b0b0e;
    --bg-2: #121318;
    --panel: #17181f;
    --fg: #f4f3ee;
    --fg-2: #9a9ba6;
    --line: #26272f;
    --tape: #ffcc2a;
    --tape-ink: #15120a;
    --hot: #ff5a36;
    --font-display: "Syne", "Helvetica Neue", Arial, sans-serif;
    --font-body: "Noto Sans JP", "Hiragino Sans", "Yu Gothic", sans-serif;
    --font-mono: "JetBrains Mono", "SFMono-Regular", Menlo, monospace;
    color-scheme: dark;
  }
  @media (prefers-color-scheme: light) {
    :root:not([data-theme="dark"]) {
      --bg: #f1f0ea; --bg-2: #e8e7e0; --panel: #ffffff; --fg: #101014; --fg-2: #5f6070; --line: #d2d1c8; --tape: #ffc400; --tape-ink: #15120a; --hot: #e8411f; color-scheme: light;
    }
  }
  :root[data-theme="light"] {
    --bg: #f1f0ea; --bg-2: #e8e7e0; --panel: #ffffff; --fg: #101014; --fg-2: #5f6070; --line: #d2d1c8; --tape: #ffc400; --tape-ink: #15120a; --hot: #e8411f; color-scheme: light;
  }

  * { box-sizing: border-box; }
  html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
  body {
    margin: 0; background: var(--bg); color: var(--fg);
    font-family: var(--font-body); font-size: 15px; line-height: 1.85; letter-spacing: 0.01em;
    overflow-x: hidden;
  }
  body[data-lang="en"] { font-family: var(--font-display); letter-spacing: 0; line-height: 1.6; }
  body[data-lang="en"] .lead, body[data-lang="en"] .v, body[data-lang="en"] p { font-family: var(--font-display); }
  body[data-lang] [data-ja], body[data-lang] [data-en] { display: none; }
  body[data-lang="ja"] [data-ja], body[data-lang="en"] [data-en] { display: revert; }

  .wrap {
    max-width: 1180px; margin: 0 auto;
    padding-left: max(16px, env(safe-area-inset-left, 0px));
    padding-right: max(16px, env(safe-area-inset-right, 0px));
  }
  .mono { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; }
  .eyebrow { color: var(--tape); }

  /* ===== nav ===== */
  body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 50; background: var(--bg); }
  nav { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 40; background: color-mix(in srgb, var(--bg) 84%, transparent); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); border-bottom: 1px solid var(--line); }
  nav .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding-block: 14px; }
  .brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--fg); }
  .brand .mark { width: 30px; height: 30px; display: grid; place-items: center; background: var(--tape); color: var(--tape-ink); font-family: var(--font-display); font-weight: 800; font-size: 17px; border-radius: 6px; }
  .brand .name { font-family: var(--font-display); font-weight: 800; font-size: 20px; letter-spacing: 0.06em; }
  .nav-right { display: flex; align-items: center; gap: 10px; }
  .pill { display: inline-flex; align-items: center; gap: 8px; padding: 7px 12px; border: 1px solid var(--line); border-radius: 999px; background: var(--panel); color: var(--fg-2); }
  .pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--hot); box-shadow: 0 0 0 0 var(--hot); animation: pulse 2s infinite; }
  @keyframes pulse { 0% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--hot) 60%, transparent); } 100% { box-shadow: 0 0 0 10px transparent; } }
  .lang { display: inline-flex; border: 1px solid var(--line); border-radius: 999px; padding: 3px; background: var(--panel); }
  .lang button { all: unset; cursor: pointer; padding: 5px 12px; border-radius: 999px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; color: var(--fg-2); transition: background .2s, color .2s; }
  .lang button[aria-pressed="true"] { background: var(--fg); color: var(--bg); }
  .lang button:focus-visible { outline: 2px solid var(--tape); }

  /* ===== hero ===== */
  .hero { position: relative; isolation: isolate; overflow: hidden; }
  .hero canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: -1; opacity: .9; }
  .hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(60% 50% at 70% 30%, color-mix(in srgb, var(--tape) 14%, transparent), transparent 70%), linear-gradient(to bottom, transparent 40%, var(--bg)); pointer-events: none; }
  .hero .wrap { padding-block: clamp(64px, 9vw, 120px) clamp(40px, 6vw, 72px); display: grid; gap: 28px; }
  .hero .wrap > * { min-width: 0; }
  .hero h1 {
    margin: 0; font-family: var(--font-display); font-weight: 800;
    font-size: clamp(44px, 11vw, 160px); line-height: .86; letter-spacing: -0.04em;
    text-transform: uppercase; text-wrap: balance;
  }
  .hero h1 .ghost { color: transparent; -webkit-text-stroke: 2px var(--fg); }
  .hero h1 .tape { color: var(--tape); }
  .hero-grid { display: grid; grid-template-columns: 1fr; gap: 24px; align-items: end; }
  @media (min-width: 880px) { .hero-grid { grid-template-columns: minmax(0, 3fr) minmax(0, 2fr); } }
  .lead { margin: 0; font-size: clamp(18px, 2.6vw, 30px); font-weight: 700; line-height: 1.45; text-wrap: balance; max-width: 22em; }
  .sub { margin: 10px 0 0; color: var(--fg-2); max-width: 36em; }
  .cta-row { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
  .btn { display: inline-flex; align-items: center; gap: 10px; padding: 14px 20px; border-radius: 10px; text-decoration: none; font-family: var(--font-display); font-weight: 700; font-size: 15px; letter-spacing: 0.02em; transition: transform .15s ease, box-shadow .15s ease; }
  .btn:hover { transform: translateY(-2px); }
  .btn:focus-visible { outline: 2px solid var(--tape); outline-offset: 3px; }
  .btn-primary { background: var(--tape); color: var(--tape-ink); box-shadow: 0 10px 30px -10px color-mix(in srgb, var(--tape) 70%, transparent); }
  .btn-ghost { border: 1px solid var(--line); color: var(--fg); background: color-mix(in srgb, var(--panel) 60%, transparent); }
  .stats { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 14px; overflow: hidden; }
  .stat { background: var(--panel); padding: 16px 14px; min-width: 0; }
  .stat b { display: block; font-family: var(--font-display); font-weight: 800; font-size: clamp(22px, 3vw, 34px); line-height: 1.1; font-variant-numeric: tabular-nums; }
  .stat span { display: block; margin-top: 6px; color: var(--fg-2); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; }

  /* ===== tape marquee ===== */
  .tape-bar { background: repeating-linear-gradient(135deg, var(--tape) 0 28px, var(--tape-ink) 28px 56px); padding: 4px 0; }
  .tape-bar .inner { background: var(--tape); color: var(--tape-ink); overflow: hidden; white-space: nowrap; }
  .ticker { display: inline-flex; gap: 48px; padding: 12px 0; font-family: var(--font-display); font-weight: 800; font-size: 15px; letter-spacing: 0.08em; text-transform: uppercase; animation: scroll 28s linear infinite; }
  .ticker span { display: inline-flex; align-items: center; gap: 48px; }
  .ticker span::after { content: "✦"; }
  @keyframes scroll { to { transform: translateX(-50%); } }

  /* ===== sections ===== */
  section.block .wrap { padding-block: clamp(64px, 9vw, 128px); }
  .section-head { display: grid; gap: 10px; margin-bottom: clamp(32px, 5vw, 56px); }
  .section-head h2 { margin: 0; font-family: var(--font-display); font-weight: 800; font-size: clamp(32px, 6vw, 72px); line-height: 1; letter-spacing: -0.03em; text-wrap: balance; }
  .section-head p { margin: 0; color: var(--fg-2); max-width: 40em; }

  /* benefits */
  .benefits { display: grid; grid-template-columns: 1fr; gap: 14px; }
  @media (min-width: 720px) { .benefits { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
  .card { position: relative; background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 26px 24px 24px; min-width: 0; overflow: hidden; transition: transform .25s ease, border-color .25s ease; }
  .card:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--tape) 60%, var(--line)); }
  .card .icon { width: 48px; height: 48px; display: grid; place-items: center; border-radius: 12px; background: color-mix(in srgb, var(--tape) 16%, var(--panel)); color: var(--tape); margin-bottom: 18px; }
  .card .icon svg { width: 26px; height: 26px; }
  .card h3 { margin: 0 0 8px; font-family: var(--font-display); font-weight: 700; font-size: 20px; line-height: 1.25; }
  body[data-lang="ja"] .card h3 { font-family: var(--font-body); font-weight: 900; }
  .card p { margin: 0; color: var(--fg-2); font-size: 14px; }
  .card .num { position: absolute; top: 18px; right: 20px; font-family: var(--font-mono); font-size: 11px; color: var(--fg-2); letter-spacing: 0.14em; }

  /* production line */
  .line-wrap { position: relative; border: 1px solid var(--line); border-radius: 22px; background: var(--bg-2); padding: clamp(24px, 4vw, 44px); overflow: hidden; }
  .line { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; position: relative; }
  .line::before { content: ""; position: absolute; left: 10%; right: 10%; top: 26px; height: 2px; background: var(--line); }
  .line::after { content: ""; position: absolute; left: 10%; top: 25px; height: 4px; width: 80%; background: linear-gradient(90deg, var(--tape), var(--hot)); transform-origin: left; animation: fill 6s ease-in-out infinite; }
  @keyframes fill { 0% { transform: scaleX(0); } 70% { transform: scaleX(1); } 100% { transform: scaleX(1); } }
  .step { position: relative; text-align: center; min-width: 0; }
  .step .node { width: 54px; height: 54px; margin: 0 auto 14px; border-radius: 50%; display: grid; place-items: center; background: var(--panel); border: 2px solid var(--line); font-family: var(--font-mono); font-weight: 600; font-size: 12px; position: relative; z-index: 1; animation: light 6s ease-in-out infinite; }
  .step:nth-child(1) .node { animation-delay: .2s; } .step:nth-child(2) .node { animation-delay: 1.1s; } .step:nth-child(3) .node { animation-delay: 2s; } .step:nth-child(4) .node { animation-delay: 2.9s; } .step:nth-child(5) .node { animation-delay: 3.8s; }
  @keyframes light { 0%, 10% { border-color: var(--line); color: var(--fg-2); } 18%, 100% { border-color: var(--tape); color: var(--fg); box-shadow: 0 0 0 6px color-mix(in srgb, var(--tape) 15%, transparent); } }
  .step b { display: block; font-family: var(--font-display); font-weight: 700; font-size: clamp(12px, 1.6vw, 16px); line-height: 1.2; }
  body[data-lang="ja"] .step b { font-family: var(--font-body); font-weight: 900; }
  .step small { display: block; color: var(--fg-2); font-size: 11px; line-height: 1.5; margin-top: 4px; }
  @media (max-width: 640px) { .step small { display: none; } .step .node { width: 42px; height: 42px; font-size: 10px; } .line::before, .line::after { top: 20px; } }

  /* catalog */
  .ctl-label { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--fg-2); margin-bottom: 12px; }
  .tabs { display: flex; gap: 8px; overflow-x: auto; padding-bottom: 6px; scrollbar-width: none; -ms-overflow-style: none; }
  .tabs::-webkit-scrollbar { display: none; }
  .tabs button { all: unset; cursor: pointer; flex: none; display: inline-flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); font-family: var(--font-display); font-weight: 700; font-size: 14px; color: var(--fg-2); transition: background .2s, color .2s, border-color .2s; }
  body[data-lang="ja"] .tabs button { font-family: var(--font-body); font-weight: 900; }
  .tabs button .k { font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.12em; opacity: .7; }
  .tabs button[aria-selected="true"] { background: var(--tape); color: var(--tape-ink); border-color: var(--tape); }
  .tabs button:focus-visible { outline: 2px solid var(--tape); outline-offset: 3px; }
  .set-head { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: end; gap: 10px 24px; margin: 22px 0 18px; }
  .set-head h3 { margin: 0; font-family: var(--font-display); font-weight: 800; font-size: clamp(22px, 3.4vw, 34px); line-height: 1.1; letter-spacing: -0.02em; }
  body[data-lang="ja"] .set-head h3 { font-family: var(--font-body); font-weight: 900; }
  .set-head p { margin: 4px 0 0; color: var(--fg-2); max-width: 44em; font-size: 14px; }
  .set-head .count { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; color: var(--fg-2); text-transform: uppercase; white-space: nowrap; }
  .catalog { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  @media (min-width: 560px) { .catalog { grid-template-columns: repeat(3, minmax(0, 1fr)); } }
  @media (min-width: 900px) { .catalog { grid-template-columns: repeat(5, minmax(0, 1fr)); } }
  .item { position: relative; min-width: 0; border: 1px solid var(--line); border-radius: 16px; background: var(--panel); padding: 18px 16px 16px; display: grid; gap: 12px; transition: transform .22s ease, border-color .22s ease; animation: pop .4s ease both; }
  .item:hover { transform: translateY(-4px); border-color: color-mix(in srgb, var(--tape) 55%, var(--line)); }
  @keyframes pop { from { opacity: .001; transform: translateY(8px); } to { opacity: 1; transform: none; } }
  .item .ico { width: 100%; aspect-ratio: 1 / 1; max-width: 100%; border-radius: 12px; background: var(--bg-2); display: grid; place-items: center; color: var(--fg); }
  .item .ico { overflow: hidden; }
  .item .ico img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .4s ease; }
  .item:hover .ico img { transform: scale(1.06); }
  .item.star .ico { box-shadow: inset 0 0 0 2px var(--tape); }
  .item b { display: block; font-size: 14px; font-weight: 700; line-height: 1.35; }
  .item small { display: block; color: var(--fg-2); font-family: var(--font-mono); font-size: 10px; letter-spacing: 0.1em; margin-top: 2px; }
  .item .badge { position: absolute; top: 10px; left: 10px; font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.14em; padding: 4px 7px; border-radius: 999px; background: var(--tape); color: var(--tape-ink); font-weight: 600; }
  .all-items { margin-top: clamp(32px, 5vw, 56px); padding-top: 28px; border-top: 1px dashed var(--line); }
  .chips { display: flex; flex-wrap: wrap; gap: 8px; }
  .chip { display: inline-flex; align-items: center; padding: 7px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--panel); font-size: 13px; color: var(--fg); }

  /* members */
  .members .wrap { padding-block: clamp(64px, 9vw, 128px); border-top: 1px solid var(--line); }
  .plates { display: grid; grid-template-columns: repeat(auto-fill, minmax(96px, 1fr)); gap: 8px; margin: 28px 0; }
  .plate { aspect-ratio: 2 / 1; max-width: 100%; border: 1px solid var(--line); border-radius: 8px; display: grid; place-items: center; font-family: var(--font-mono); font-size: 13px; font-weight: 600; letter-spacing: 0.08em; color: var(--fg-2); background: var(--panel); font-variant-numeric: tabular-nums; }
  .plate.taken { color: var(--tape-ink); background: var(--tape); border-color: var(--tape); }
  .plate.you { color: var(--fg); border-style: dashed; }
  .gate { display: grid; gap: 14px; max-width: 560px; margin-top: 8px; }
  .gate form { display: flex; gap: 8px; flex-wrap: wrap; }
  .gate input { flex: 1 1 220px; min-width: 0; padding: 14px 16px; border-radius: 10px; border: 1px solid var(--line); background: var(--panel); color: var(--fg); font-family: var(--font-mono); font-size: 14px; letter-spacing: 0.12em; text-transform: uppercase; }
  .gate input:focus-visible { outline: 2px solid var(--tape); outline-offset: 1px; }
  .gate button { all: unset; cursor: pointer; padding: 14px 20px; border-radius: 10px; background: var(--fg); color: var(--bg); font-family: var(--font-display); font-weight: 700; font-size: 14px; }
  .gate button:focus-visible { outline: 2px solid var(--tape); outline-offset: 3px; }
  .gate .msg { min-height: 1.6em; font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.06em; color: var(--fg-2); }
  .gate .msg.err { color: var(--hot); }
  .gate .msg.ok { color: var(--tape); }
  .closed-banner { display: inline-flex; align-items: center; gap: 12px; padding: 10px 16px; border-radius: 999px; border: 1px solid color-mix(in srgb, var(--hot) 60%, var(--line)); color: var(--hot); font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; width: fit-content; max-width: 100%; }
  .closed-banner .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--hot); }

  /* footer */
  footer .wrap { padding-block: 32px 48px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 24px; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; color: var(--fg-2); text-transform: uppercase; }
  footer a { color: inherit; text-decoration: none; }
  footer a:focus-visible, .brand:focus-visible { outline: 2px solid var(--tape); outline-offset: 4px; }

  @media (prefers-reduced-motion: reduce) {
    .ticker, .line::after, .step .node, .pill .dot { animation: none !important; }
    .line::after { transform: none; }
    .step .node { border-color: var(--tape); }
  }