/* ==========================================================================
   DELIVERY OS — shared design system
   Used by: / (profile hub), /qr/, /pitch/, /app/
   No external dependencies. System fonts only (fast, offline-safe at events).
   ========================================================================== */

:root {
  color-scheme: dark light;

  /* Brand */
  --brand-1: #5b8cff;
  --brand-2: #2dd4bf;
  --brand-3: #a78bfa;

  /* Semantic */
  --ok: #34d399;
  --warn: #fbbf24;
  --danger: #fb7185;
  --info: #60a5fa;

  /* Dark (default) */
  --bg: #0a0c12;
  --bg-soft: #0e1118;
  --surface: #141823;
  --surface-2: #1b2130;
  --surface-3: #232b3d;
  --border: #232b3d;
  --border-soft: #1b2231;
  --text: #eef2f8;
  --text-dim: #aab3c5;
  --text-faint: #6e7893;
  --shadow: 0 18px 50px -18px rgba(0, 0, 0, 0.8);
  --shadow-soft: 0 6px 20px -10px rgba(0, 0, 0, 0.7);

  /* Metrics */
  --radius: 18px;
  --radius-sm: 12px;
  --radius-lg: 28px;
  --gutter: 18px;
  --maxw: 660px;

  /* 動きはこの2本だけ。ばらばらの曲線を使わない */
  --ease: cubic-bezier(0.32, 0.72, 0, 1);
  --ease-pop: cubic-bezier(0.34, 1.56, 0.64, 1);

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "Hiragino Kaku Gothic ProN",
    "Hiragino Sans", "Noto Sans JP", "Yu Gothic UI", Meiryo, system-ui, sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Roboto Mono", monospace;
}

:root[data-theme="light"] {
  --bg: #f6f7fb;
  --bg-soft: #ffffff;
  --surface: #ffffff;
  --surface-2: #f1f3f9;
  --surface-3: #e7ebf4;
  --border: #e2e6f1;
  --border-soft: #edf0f7;
  --text: #121726;
  --text-dim: #4a5368;
  --text-faint: #7b8398;
  --shadow: 0 18px 50px -24px rgba(23, 34, 71, 0.28);
  --shadow-soft: 0 6px 18px -12px rgba(23, 34, 71, 0.2);
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --bg: #f6f7fb;
    --bg-soft: #ffffff;
    --surface: #ffffff;
    --surface-2: #f1f3f9;
    --surface-3: #e7ebf4;
    --border: #d7dced;
    --border-soft: #e6eaf4;
    --text: #121726;
    --text-dim: #4a5368;
    --text-faint: #7b8398;
    --shadow: 0 18px 50px -24px rgba(23, 34, 71, 0.35);
    --shadow-soft: 0 6px 18px -10px rgba(23, 34, 71, 0.25);
  }
}

/* ---------- 言語切り替え / language switching ----------
   両言語をDOMに置き、使わない方を隠すだけにする。
   display を上書きしないので grid/flex のレイアウトを壊さない。
   併記モード（data-lang-both）では何も隠さず、日本語側を副テキストとして装飾する。 */
html[lang="ja"]:not([data-lang-both]) [data-l="en"],
html[lang="en"]:not([data-lang-both]) [data-l="ja"] { display: none !important; }

/* 併記モードの日本語側 */
html[data-lang-both] p[data-l="ja"],
html[data-lang-both] div[data-l="ja"],
html[data-lang-both] section[data-l="ja"] {
  border-left: 2px solid color-mix(in srgb, var(--brand-3) 45%, transparent);
  padding-left: 11px;
  margin-top: 6px;
  font-size: 0.93em;
  color: var(--text-faint);
}
html[data-lang-both] span[data-l="ja"] { color: var(--text-faint); font-weight: 400; }
html[data-lang-both] span[data-l="ja"]::before { content: " / "; }
/* 明るいCTAの上では薄いグレーだと読めないので濃い色にする */
html[data-lang-both] .btn-primary span[data-l="ja"],
html[data-lang-both] .plink.cta span[data-l="ja"],
html[data-lang-both] .plink.cta .faint,
html[data-lang-both] .btn-primary .faint { color: color-mix(in srgb, #06121f 72%, transparent); }
html[data-lang-both] li > span[data-l="ja"]::before { content: " — "; }
/* SVG内のテキストは同じ座標に重なるので併記しない */
html[data-lang-both] text[data-l="ja"] { display: none !important; }
/* 併記時のJS生成テキストの副訳 */
.alt-ja {
  display: block;
  margin-top: 6px;
  padding-left: 11px;
  border-left: 2px solid color-mix(in srgb, var(--brand-3) 45%, transparent);
  font-size: 0.93em;
  color: var(--text-faint);
  font-weight: 400;
}

.lang-btn {
  min-width: 46px;
  white-space: nowrap;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.02em;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.68;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: var(--brand-1); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 { line-height: 1.2; margin: 0 0 0.5em; letter-spacing: -0.022em; }
h1 { line-height: 1.12; letter-spacing: -0.032em; }
p { margin: 0 0 1.05em; text-wrap: pretty; }

code, pre, .mono { font-family: var(--mono); }

hr { border: 0; border-top: 1px solid var(--border-soft); margin: 28px 0; }

/* ---------- layout ---------- */
.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.wrap-wide { max-width: 1020px; }

.section { padding: 56px 0; }
.stack > * + * { margin-top: 14px; }

/* ---------- atmosphere ---------- */
.aurora {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(70% 46% at 16% -6%, color-mix(in srgb, var(--brand-1) 16%, transparent), transparent 72%),
    radial-gradient(56% 40% at 94% 4%, color-mix(in srgb, var(--brand-2) 12%, transparent), transparent 74%),
    radial-gradient(80% 54% at 50% 106%, color-mix(in srgb, var(--brand-3) 9%, transparent), transparent 72%);
  opacity: 0.6;
}
.grid-lines {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, color-mix(in srgb, var(--text) 3%, transparent) 1px, transparent 1px),
    linear-gradient(to bottom, color-mix(in srgb, var(--text) 3%, transparent) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(120% 80% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 20%, transparent 78%);
}

/* ---------- cards ---------- */
.card {
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow-soft);
}
.card-tight { padding: 16px; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 11px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  font: inherit;
  font-weight: 600;
  letter-spacing: -0.005em;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.18s var(--ease), border-color 0.2s var(--ease),
    background 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.btn:hover { text-decoration: none; border-color: color-mix(in srgb, var(--brand-1) 60%, var(--border)); }
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: linear-gradient(135deg, var(--brand-1), var(--brand-2));
  border-color: transparent;
  color: #06121f;
  box-shadow: 0 8px 24px -12px color-mix(in srgb, var(--brand-1) 85%, transparent);
}
.btn-primary:hover { filter: brightness(1.04); }
.btn-ghost { background: transparent; }
.btn-sm { min-height: 34px; padding: 6px 12px; font-size: 13px; }
.btn:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--brand-2);
  outline-offset: 2px;
}

/* ---------- pills / tags ---------- */
.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-dim);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.pill-ok { color: var(--ok); border-color: color-mix(in srgb, var(--ok) 45%, transparent); background: color-mix(in srgb, var(--ok) 12%, transparent); }
.pill-warn { color: var(--warn); border-color: color-mix(in srgb, var(--warn) 45%, transparent); background: color-mix(in srgb, var(--warn) 12%, transparent); }
.pill-danger { color: var(--danger); border-color: color-mix(in srgb, var(--danger) 45%, transparent); background: color-mix(in srgb, var(--danger) 12%, transparent); }
.pill-info { color: var(--info); border-color: color-mix(in srgb, var(--info) 45%, transparent); background: color-mix(in srgb, var(--info) 12%, transparent); }

/* ---------- misc ---------- */
.eyebrow {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--text-faint);
}
.muted { color: var(--text-dim); }
.faint { color: var(--text-faint); }
.small { font-size: 13px; }
.tiny { font-size: 12px; }
.center { text-align: center; }
.row { display: flex; gap: 10px; align-items: center; }
.row-wrap { flex-wrap: wrap; }
.spread { justify-content: space-between; }
/* 狭い画面では左右振り分けを折り返す。長いバッジが右にはみ出すのを防ぐ。 */
@media (max-width: 420px) {
  .row.spread { flex-wrap: wrap; }
  .row.spread > .nowrap { white-space: normal; }
}
.grow { flex: 1 1 auto; min-width: 0; }
.nowrap { white-space: nowrap; }
.hidden { display: none !important; }

.top-controls {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 6px;
}
.top-controls .btn {
  min-height: 40px;
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: blur(8px);
}
.top-controls .theme-toggle { position: static; top: auto; right: auto; }

.theme-toggle {
  position: fixed;
  top: 12px;
  right: 12px;
  z-index: 50;
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--text);
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
}

.footer {
  padding: 32px 0 44px;
  color: var(--text-faint);
  font-size: 12px;
  text-align: center;
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
}

/* ホームへ戻るボタン。どのページからでも、いつでもプロフィールに戻れるようにする。
   デモの奥に入ったときに戻り道が無いと詰まるため、画面に固定で出す。 */
/* 家の形だけだと何のボタンか伝わらないので、下に HOME と文字を置く */
.home-btn {
  width: 46px; min-height: 42px; padding: 5px 0 4px;
  border-radius: 13px;
  display: grid; justify-items: center; align-content: center; gap: 2px;
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  backdrop-filter: blur(8px);
  border: 1px solid var(--border);
  color: var(--text);
  line-height: 1; text-decoration: none;
  flex: 0 0 auto;
}
.home-btn svg { width: 17px; height: 17px; display: block; }
.home-btn span {
  font-family: var(--mono); font-size: 8.5px; font-weight: 700;
  letter-spacing: 0.1em; line-height: 1;
}
.home-btn:hover { text-decoration: none; border-color: var(--brand-2); color: var(--brand-2); }