:root {
  --bg: #0d0a0c;
  --bg2: #151014;
  --panel: #1b1318;
  --ink: #f7eef2;
  --sub: #b8a5af;
  --line: #34242d;
  --accent: #ff5fa8;
  --accent-deep: #a8306b;
  --cap: #ff5fa8;
  --radius: 14px;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: radial-gradient(1200px 500px at 50% -120px, #2a1220 0%, var(--bg) 60%) no-repeat, var(--bg);
  color: var(--ink);
  font: 16px/1.8 system-ui, -apple-system, "Hiragino Sans", "Yu Gothic UI", "Meiryo", sans-serif;
}
a { color: var(--accent); text-underline-offset: 3px; }
h1, h2, h3 { line-height: 1.4; margin: 0; }
h1 { font-size: 1.6rem; letter-spacing: .02em; }
h2 { font-size: 1.15rem; margin: 32px 0 10px; }
h3 { font-size: 1rem; margin: 20px 0 6px; }
p { margin: 8px 0; }
ul, ol { padding-left: 1.3em; }
li { margin: 4px 0; }

.wrap { max-width: 600px; margin: 0 auto; padding: 0 16px; }

/* ヘッダー */
.site-head { border-bottom: 1px solid var(--line); background: rgba(13, 10, 12, .88); backdrop-filter: blur(6px); position: sticky; top: 0; z-index: 5; }
.site-head .wrap { display: flex; align-items: center; justify-content: space-between; gap: 12px; padding-top: 10px; padding-bottom: 10px; }
.brand { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); text-decoration: none; font-weight: 700; white-space: nowrap; }
.site-head .wrap { flex-wrap: wrap; }
.brand svg { width: 28px; height: 28px; flex: none; }
.nav { display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: .85rem; }
.nav a { color: var(--sub); text-decoration: none; }
.nav a:hover, .nav a[aria-current="page"] { color: var(--ink); }

/* ボタン */
.btn { display: inline-block; background: var(--accent); color: #1a0610; border: 0; border-radius: 10px; padding: 12px 22px; font: inherit; font-weight: 700; text-decoration: none; cursor: pointer; text-align: center; }
.btn:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn.disabled { background: var(--line); color: var(--sub); cursor: default; filter: none; }
:focus-visible { outline: 3px solid #ffc2dd; outline-offset: 2px; }

/* トップ */
.hero { padding: 28px 0 4px; text-align: center; }
.lead { color: var(--sub); margin: 6px 0 0; }
.notice { background: var(--bg2); border: 1px dashed var(--line); color: var(--sub); border-radius: 10px; padding: 8px 12px; font-size: .85rem; margin: 16px 0 0; }
.notice[hidden] { display: none; }
.step { color: var(--sub); font-size: .8rem; letter-spacing: .12em; margin: 28px 0 8px; text-align: center; }

.genres { display: flex; flex-wrap: wrap; gap: 8px; justify-content: center; }
.chip { background: var(--panel); color: var(--ink); border: 1px solid var(--line); border-radius: 999px; padding: 8px 18px; font: inherit; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.chip::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--dot, var(--accent)); }
.chip[aria-checked="true"] { border-color: var(--dot, var(--accent)); box-shadow: 0 0 0 1px var(--dot, var(--accent)) inset; }
.chip:disabled { opacity: .55; cursor: default; }

/* ガチャ機 */
.machine { position: relative; width: 240px; margin: 20px auto 0; }
.machine svg { display: block; width: 100%; height: auto; overflow: visible; }
.caps circle { stroke: rgba(0, 0, 0, .25); stroke-width: 1; }
.knob { transform-origin: 120px 215px; }
.machine.spin .knob { animation: knob 1.5s ease-in-out; }
.machine.spin .caps { animation: shake .5s linear 3; transform-origin: 120px 100px; }
@keyframes knob { to { transform: rotate(720deg); } }
@keyframes shake {
  0%, 100% { transform: translate(0, 0) rotate(0); }
  25% { transform: translate(-4px, 2px) rotate(-3deg); }
  75% { transform: translate(4px, -2px) rotate(3deg); }
}

.spin-btn { display: block; width: 148px; height: 148px; margin: 18px auto 6px; border-radius: 50%; border: 0; background: var(--accent); color: #1a0610; font: 700 1.5rem/1 system-ui, sans-serif; cursor: pointer; box-shadow: 0 7px 0 var(--accent-deep), 0 18px 28px rgba(0, 0, 0, .35); transition: transform .08s, box-shadow .08s; }
.spin-btn:active:not(:disabled) { transform: translateY(5px); box-shadow: 0 2px 0 var(--accent-deep), 0 8px 14px rgba(0, 0, 0, .35); }
.spin-btn:disabled { background: var(--line); color: var(--sub); box-shadow: none; font-size: 1rem; cursor: default; }
.note { text-align: center; color: var(--sub); min-height: 1.8em; margin: 0; font-size: .9rem; }

/* カプセル演出 */
.stage { position: absolute; left: 50%; top: 254px; width: 0; height: 0; }
.stage[hidden] { display: none; }
.capsule { position: absolute; left: -32px; top: 0; width: 64px; height: 64px; }
.capsule span { position: absolute; left: 0; width: 64px; height: 32px; background: var(--cap); }
.capsule .top { top: 0; border-radius: 32px 32px 0 0; filter: brightness(1.15); }
.capsule .bot { top: 32px; border-radius: 0 0 32px 32px; filter: brightness(.9); }
.capsule.drop { animation: drop .7s cubic-bezier(.3, 1.4, .5, 1) both; }
.capsule.open .top { animation: top-away .5s ease-in forwards; }
.capsule.open .bot { animation: bot-away .5s ease-in forwards; }
@keyframes drop { from { transform: translateY(-120px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
@keyframes top-away { to { transform: translate(-26px, -36px) rotate(-40deg); opacity: 0; } }
@keyframes bot-away { to { transform: translate(26px, 36px) rotate(40deg); opacity: 0; } }

/* 結果カード */
.result { margin: 28px 0 0; }
.result[hidden] { display: none; }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; box-shadow: 0 14px 30px rgba(0, 0, 0, .3); }
.card.reveal { animation: reveal .55s ease both; }
@keyframes reveal { from { opacity: 0; transform: translateY(14px) scale(.98); } to { opacity: 1; transform: none; } }
.cover { aspect-ratio: 16 / 9; border-radius: 10px; display: grid; place-items: center; margin-bottom: 14px; background: linear-gradient(135deg, color-mix(in srgb, var(--cap) 55%, #12090e), #12090e); background-size: cover; background-position: center; color: rgba(255, 255, 255, .55); font-size: 1.4rem; letter-spacing: .3em; font-weight: 700; }
.tag { display: inline-flex; align-items: center; gap: 6px; font-size: .78rem; color: var(--sub); margin: 0 0 4px; }
.tag::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--cap); }
.card h2 { margin: 0 0 8px; font-size: 1.2rem; }
.meta { display: grid; grid-template-columns: auto 1fr; gap: 2px 14px; margin: 10px 0; font-size: .85rem; color: var(--sub); }
.meta dt { color: var(--sub); }
.meta dd { margin: 0; color: var(--ink); }
.comment { margin: 12px 0 16px; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; }
.again { text-align: center; color: var(--sub); font-size: .85rem; margin: 14px 0 0; }

/* 年齢確認 */
.gate { position: fixed; inset: 0; background: var(--bg); display: grid; place-items: center; padding: 16px; z-index: 20; }
.gate[hidden] { display: none; }
.gate-box { max-width: 420px; text-align: center; }
.gate-box .brand-mark { width: 56px; height: 56px; margin: 0 auto 12px; display: block; }
.row { display: flex; gap: 12px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }
#app[hidden] { display: none; }

/* 文書ページ */
.doc { padding-top: 24px; padding-bottom: 8px; }
.doc h1 { margin-bottom: 8px; }
.doc .updated { color: var(--sub); font-size: .8rem; }
.card-list { display: grid; gap: 12px; margin: 14px 0; }
.mini { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 12px 14px; }
.mini h3 { margin: 0 0 4px; display: flex; align-items: center; gap: 8px; }
.mini h3::before { content: ""; width: 10px; height: 10px; border-radius: 50%; background: var(--dot, var(--accent)); }
.mini p { margin: 0; color: var(--sub); font-size: .92rem; }
details { background: var(--panel); border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; margin: 10px 0; }
summary { cursor: pointer; font-weight: 700; }
details p { color: var(--sub); }
.timeline { list-style: none; padding: 0; margin: 14px 0; border-left: 2px solid var(--line); }
.timeline li { padding: 0 0 14px 16px; position: relative; margin: 0; }
.timeline li::before { content: ""; position: absolute; left: -6px; top: 8px; width: 10px; height: 10px; border-radius: 50%; background: var(--accent); }
.timeline time { color: var(--sub); font-size: .8rem; display: block; }

/* 履歴・お気に入り */
.list { list-style: none; padding: 0; margin: 10px 0; display: grid; gap: 8px; }
.item { display: flex; align-items: center; gap: 10px; background: var(--panel); border: 1px solid var(--line); border-left: 4px solid var(--dot, var(--accent)); border-radius: 10px; padding: 10px 12px; margin: 0; }
.item-body { flex: 1; min-width: 0; }
.item-sub { margin: 0; color: var(--sub); font-size: .78rem; }
.item-title { margin: 0; font-weight: 700; overflow-wrap: anywhere; }
.icon-btn { flex: none; width: 44px; height: 44px; border-radius: 50%; border: 1px solid var(--line); background: transparent; color: var(--accent); font-size: 1.2rem; cursor: pointer; }
.icon-btn:hover { background: var(--bg2); }
.empty { color: var(--sub); font-size: .9rem; }
.empty[hidden] { display: none; }
.danger-zone { margin-top: 28px; }
.btn.fav.on { color: var(--accent); border-color: var(--accent); }

/* フッター */
.site-foot { border-top: 1px solid var(--line); margin-top: 40px; padding: 18px 0 32px; font-size: .85rem; }
.site-foot nav { display: flex; flex-wrap: wrap; gap: 4px 14px; margin-bottom: 8px; }
.site-foot .small { color: var(--sub); font-size: .78rem; margin: 4px 0; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}