/* BIOBUZZ Simulator の公開サイト（トップ = ゲームのページ、tos = 利用規約）。色はゲームの画面と揃える */
:root {
  --ink: #0e1217;
  --panel: #161b22;
  --line: #222a35;
  --line2: #2a323d;
  --line3: #343e4b;
  --text: #eef2f6;
  --soft: #c4ccd6;
  --muted: #9aa5b3;
  --dim: #8a95a3;
  --accent: #539cff;
  --pollen: #ffd23f;
  --display: "Barlow Condensed", "Noto Sans JP", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--ink);
  color: var(--text);
  font-family: "Noto Sans JP", "Hiragino Sans", "Yu Gothic UI", "Meiryo", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.7;
}

a { color: var(--text); }
a:hover { color: var(--pollen); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

kbd {
  font-family: var(--mono);
  font-size: 0.92em;
  background: var(--ink);
  border: 1px solid var(--line3);
  border-radius: 6px;
  padding: 1px 7px;
  color: var(--text);
  white-space: nowrap;
}

.page { min-height: 100vh; display: flex; flex-direction: column; }
.wrap { max-width: 1440px; width: 100%; margin: 0 auto; padding-left: clamp(16px, 2vw, 24px); padding-right: clamp(16px, 2vw, 24px); }
.card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; }
.muted { color: var(--muted); }

/* ---------- 上のタイトル ---------- */
.top { padding-top: 14px; padding-bottom: 14px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 24px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); }
.brand img { width: 32px; height: 32px; border-radius: 7px; }
.brand-name { margin: 0; font-family: var(--display); font-weight: 800; font-size: 26px; line-height: 1; letter-spacing: 0.03em; }
.brand-name span { color: var(--accent); }
.badge { font-family: var(--display); font-weight: 600; font-size: 13px; letter-spacing: 0.12em; color: var(--muted); border: 1px solid var(--line3); border-radius: 4px; padding: 2px 8px; }
.top-link { font-size: 14px; color: var(--soft); text-decoration: none; min-height: 44px; display: inline-flex; align-items: center; gap: 6px; }

/* ---------- ゲーム + 関連ページ ---------- */
.layout { display: flex; flex-wrap: wrap; align-items: flex-start; gap: 24px; flex: 1 0 auto; }
.main-col { flex: 999 1 640px; min-width: 0; display: flex; flex-direction: column; gap: 24px; }

.game { display: flex; flex-direction: column; border: 1px solid var(--line2); border-radius: 14px; overflow: hidden; background: #000; }
.game-frame { position: relative; aspect-ratio: 16 / 9; background: #0b0e12; }
.game-frame iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; display: block; }
.game-bar { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 8px 16px; padding: 8px 8px 8px 16px; background: var(--panel); border-top: 1px solid var(--line2); font-size: 13px; color: var(--soft); }
.game-bar .keys { display: flex; flex-wrap: wrap; gap: 6px 16px; }
.btn-ghost { min-height: 40px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--line3); background: var(--ink); color: var(--text); font: inherit; font-size: 13px; font-weight: 700; cursor: pointer; display: inline-flex; align-items: center; gap: 8px; }
.btn-ghost:hover { border-color: var(--accent); }

.links { flex: 1 1 260px; min-width: 0; padding: 20px 22px; }
.links h2 { margin: 0 0 8px; font-size: 16px; line-height: 1.4; }
.links ul { margin: 0; padding: 0; list-style: none; }
.links li { border-top: 1px solid var(--line2); }
.links a { display: flex; align-items: center; justify-content: space-between; gap: 8px; min-height: 48px; text-decoration: none; font-size: 14px; }

/* ---------- プレイ方法 ---------- */
.howto { overflow: hidden; }
.howto-head { display: flex; flex-wrap: wrap; align-items: flex-end; justify-content: space-between; gap: 12px 24px; padding: 22px 24px 0; border-bottom: 1px solid var(--line); }
.howto-head h2 { margin: 0 0 14px; font-size: 20px; line-height: 1.4; }
.tabs { display: flex; flex-wrap: wrap; gap: 4px; }
.tab { min-height: 44px; padding: 0 14px; border: 0; border-bottom: 3px solid transparent; background: transparent; color: var(--muted); font: inherit; font-size: 14px; font-weight: 500; cursor: pointer; }
.tab[aria-selected="true"] { border-bottom-color: var(--accent); color: var(--text); font-weight: 700; }
.tab:hover { color: var(--text); }
.panel { padding: 24px; }

.steps { display: flex; flex-wrap: wrap; gap: 20px; }
.step { flex: 1 1 220px; display: flex; gap: 14px; align-items: flex-start; }
.step-no { font-family: var(--display); font-weight: 800; font-size: 34px; line-height: 1; color: var(--accent); }
.step h3 { margin: 0 0 2px; font-size: 16px; }
.step p { margin: 0; color: var(--muted); }
.note { margin: 20px 0 0; font-size: 13px; color: var(--dim); }

.tables { display: flex; flex-wrap: wrap; gap: 16px 32px; }
.keys-table { flex: 1 1 260px; border-collapse: collapse; font-size: 14px; }
.keys-table caption { text-align: left; font-weight: 700; font-size: 15px; padding-bottom: 4px; }
.keys-table tr { border-top: 1px solid var(--line2); }
.keys-table th { text-align: left; font-weight: 500; padding: 7px 12px 7px 0; white-space: nowrap; }
.keys-table td { padding: 7px 0; color: var(--muted); }
.keys-table td.num { text-align: right; font-family: var(--mono); color: var(--text); white-space: nowrap; }
.keys-table td.num.hot { color: var(--pollen); }
.keys-table.points th { white-space: normal; }

.timeline { display: flex; height: 44px; border-radius: 8px; overflow: hidden; font-family: var(--display); font-weight: 700; font-size: 16px; letter-spacing: 0.06em; line-height: 1; margin-bottom: 20px; }
.timeline > div { display: flex; align-items: center; }
.timeline .t-count { flex: 0 0 60px; justify-content: center; background: var(--pollen); color: var(--ink); }
.timeline .t-tele { flex: 1 1 0; padding: 0 14px; background: #26303c; color: var(--text); }
.timeline .t-last { flex: 1 1 0; padding: 0 14px; background: var(--accent); color: var(--ink); }
.timeline .t-end { flex: 0 0 60px; justify-content: center; background: var(--text); color: var(--ink); }
.rules { display: flex; flex-wrap: wrap; gap: 20px 32px; }
.rules ul { flex: 1 1 280px; margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 8px; color: var(--soft); }

.online { display: flex; flex-wrap: wrap; align-items: center; gap: 24px 40px; }
.online ol { flex: 1 1 320px; margin: 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 10px; }
.online li { display: flex; gap: 12px; align-items: baseline; }
.online li .n { font-family: var(--display); font-weight: 800; font-size: 18px; color: var(--accent); min-width: 24px; }
.online li.sub { color: var(--dim); font-size: 13px; padding-top: 4px; }
.code { flex: 0 1 300px; display: flex; gap: 8px; }
.code span { flex: 1 1 0; height: 76px; display: flex; align-items: center; justify-content: center; background: var(--ink); border: 1px solid var(--line3); border-radius: 10px; font-family: var(--mono); font-weight: 700; font-size: 34px; }

/* ---------- 下 ---------- */
.foot { margin-top: 64px; border-top: 1px solid var(--line); }
.foot .wrap { padding-top: 28px; padding-bottom: 36px; display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 16px 32px; }
.foot nav { display: flex; flex-wrap: wrap; gap: 4px 24px; font-size: 14px; }
.foot nav a { min-height: 44px; display: inline-flex; align-items: center; }
.foot .copy { margin: 0; font-size: 13px; color: var(--dim); }
.foot .legal { margin: 0; flex: 1 1 100%; font-size: 12px; line-height: 1.8; color: var(--dim); }

/* ---------- 利用規約 ---------- */
.doc { max-width: 820px; width: 100%; margin: 0 auto; padding: clamp(32px, 5vw, 64px) clamp(16px, 4vw, 40px) 0; display: flex; flex-direction: column; gap: 36px; flex: 1 0 auto; line-height: 1.9; }
.doc h1 { margin: 0; font-size: clamp(28px, 4vw, 40px); line-height: 1.3; }
.doc .meta { margin: 8px 0 0; font-size: 14px; color: var(--muted); }
.doc p, .doc ul { margin: 0; color: var(--soft); }
.doc ul { padding-left: 1.4em; display: flex; flex-direction: column; gap: 4px; }
.doc section { display: flex; flex-direction: column; gap: 10px; }
.doc h2 { margin: 0; font-size: 19px; line-height: 1.5; display: flex; gap: 12px; align-items: baseline; }
.doc h2 span { font-family: var(--display); font-weight: 800; font-size: 22px; color: var(--accent); min-width: 30px; }