/* ===========================
   CSS変数 - テーマシステム
   =========================== */

/* 和紙風テーマ（デフォルト） */
[data-theme="washi"] {
  --bg-primary: #f0ebe0;
  --bg-secondary: #e6dfd0;
  --bg-card: #faf6ee;
  --text-primary: #3a3025;
  --text-secondary: #7a6b5a;
  --accent: #8b4513;
  --accent-hover: #a0522d;
  --border: #cfc0a0;
  --btn-primary-bg: #8b4513;
  --btn-primary-text: #faf6ee;
  --btn-secondary-bg: #d4c5a9;
  --btn-secondary-text: #3a3025;
  --btn-danger-bg: #7a2020;
  --btn-danger-text: #faf6ee;
  --highlight-bg: #8b4513;
  --highlight-text: #faf6ee;
  --locked-bg: #5a7a3a;
  --locked-text: #faf6ee;
  --result-bg: #faf6ee;
  --result-border: #8b4513;
  --input-bg: #faf6ee;
  --input-border: #cfc0a0;
  --toggle-bg: #cfc0a0;
  --toggle-active: #8b4513;
  --shadow: rgba(58, 48, 37, 0.12);
  --roulette-bg: #e6dfd0;
}

/* 森テーマ */
[data-theme="mori"] {
  --bg-primary: #0e1810;
  --bg-secondary: #162012;
  --bg-card: #1e2c18;
  --text-primary: #c8d8b8;
  --text-secondary: #8aaa78;
  --accent: #c8922a;
  --accent-hover: #e0a840;
  --border: #2e4028;
  --btn-primary-bg: #c8922a;
  --btn-primary-text: #0e1810;
  --btn-secondary-bg: #2e4028;
  --btn-secondary-text: #c8d8b8;
  --btn-danger-bg: #8b2020;
  --btn-danger-text: #c8d8b8;
  --highlight-bg: #c8922a;
  --highlight-text: #0e1810;
  --locked-bg: #3a7a3a;
  --locked-text: #c8d8b8;
  --result-bg: #1e2c18;
  --result-border: #c8922a;
  --input-bg: #162012;
  --input-border: #2e4028;
  --toggle-bg: #2e4028;
  --toggle-active: #c8922a;
  --shadow: rgba(0, 0, 0, 0.3);
  --roulette-bg: #162012;
}

/* 藍染テーマ */
[data-theme="aizome"] {
  --bg-primary: #0c111e;
  --bg-secondary: #141a2c;
  --bg-card: #1c2438;
  --text-primary: #d0daf0;
  --text-secondary: #8090b8;
  --accent: #c8a848;
  --accent-hover: #e0c060;
  --border: #263050;
  --btn-primary-bg: #c8a848;
  --btn-primary-text: #0c111e;
  --btn-secondary-bg: #263050;
  --btn-secondary-text: #d0daf0;
  --btn-danger-bg: #7a2030;
  --btn-danger-text: #d0daf0;
  --highlight-bg: #c8a848;
  --highlight-text: #0c111e;
  --locked-bg: #2a6060;
  --locked-text: #d0daf0;
  --result-bg: #1c2438;
  --result-border: #c8a848;
  --input-bg: #141a2c;
  --input-border: #263050;
  --toggle-bg: #263050;
  --toggle-active: #c8a848;
  --shadow: rgba(0, 0, 0, 0.35);
  --roulette-bg: #141a2c;
}

/* ダークテーマ */
[data-theme="dark"] {
  --bg-primary: #1a1a2e;
  --bg-secondary: #16213e;
  --bg-card: #0f3460;
  --text-primary: #e0e0e0;
  --text-secondary: #a0a0a0;
  --accent: #e94560;
  --accent-hover: #ff6b81;
  --border: #2a2a4a;
  --btn-primary-bg: #e94560;
  --btn-primary-text: #ffffff;
  --btn-secondary-bg: #2a2a4a;
  --btn-secondary-text: #e0e0e0;
  --btn-danger-bg: #c0392b;
  --btn-danger-text: #ffffff;
  --highlight-bg: #e94560;
  --highlight-text: #ffffff;
  --locked-bg: #2e7d4a;
  --locked-text: #ffffff;
  --result-bg: #0f3460;
  --result-border: #e94560;
  --input-bg: #16213e;
  --input-border: #2a2a4a;
  --toggle-bg: #2a2a4a;
  --toggle-active: #e94560;
  --shadow: rgba(0, 0, 0, 0.3);
  --roulette-bg: #16213e;
}

/* メタルテーマ */
[data-theme="metal"] {
  --bg-primary: #0a0a0a;
  --bg-secondary: #1a1a1a;
  --bg-card: #2a2a2a;
  --text-primary: #d0d0d0;
  --text-secondary: #888888;
  --accent: #cc0000;
  --accent-hover: #ff3333;
  --border: #444444;
  --btn-primary-bg: #cc0000;
  --btn-primary-text: #ffffff;
  --btn-secondary-bg: #3a3a3a;
  --btn-secondary-text: #d0d0d0;
  --btn-danger-bg: #8b0000;
  --btn-danger-text: #ffffff;
  --highlight-bg: #cc0000;
  --highlight-text: #ffffff;
  --locked-bg: #2a6a2a;
  --locked-text: #ffffff;
  --result-bg: #1a1a1a;
  --result-border: #cc0000;
  --input-bg: #1a1a1a;
  --input-border: #444444;
  --toggle-bg: #3a3a3a;
  --toggle-active: #cc0000;
  --shadow: rgba(204, 0, 0, 0.2);
  --roulette-bg: #1a1a1a;
}

/* ネオンサイバーテーマ */
[data-theme="neon"] {
  --bg-primary: #0d0221;
  --bg-secondary: #150734;
  --bg-card: #1a0a3e;
  --text-primary: #e0e0ff;
  --text-secondary: #8888cc;
  --accent: #00ff88;
  --accent-hover: #33ffaa;
  --border: #2a1a5e;
  --btn-primary-bg: #00ff88;
  --btn-primary-text: #0d0221;
  --btn-secondary-bg: #2a1a5e;
  --btn-secondary-text: #e0e0ff;
  --btn-danger-bg: #ff0055;
  --btn-danger-text: #ffffff;
  --highlight-bg: #ff0055;
  --highlight-text: #ffffff;
  --locked-bg: #006644;
  --locked-text: #e0e0ff;
  --result-bg: #1a0a3e;
  --result-border: #00ff88;
  --input-bg: #150734;
  --input-border: #2a1a5e;
  --toggle-bg: #2a1a5e;
  --toggle-active: #00ff88;
  --shadow: rgba(0, 255, 136, 0.15);
  --roulette-bg: #150734;
}

/* ===========================
   リセット & ベース
   =========================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* hidden属性をdisplay指定より優先させる */
[hidden] { display: none !important; }

body {
  font-family: 'Segoe UI', 'Hiragino Kaku Gothic ProN', 'メイリオ', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  transition: background-color 0.3s, color 0.3s;
}

/* ===========================
   ヘッダー
   =========================== */
.app-header {
  text-align: center;
  padding: 1.2rem 1rem 1rem;
  background-color: var(--bg-secondary);
  border-bottom: 2px solid var(--border);
}

.app-header h1 {
  font-size: 1.6rem;
  color: var(--accent);
}

.subtitle {
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-top: 0.2rem;
}

/* ===========================
   メインレイアウト
   =========================== */
.app-main {
  max-width: 700px;
  margin: 0 auto;
  padding: 1rem;
}

.app-main section {
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1.25rem;
  margin-bottom: 1rem;
  box-shadow: 0 2px 8px var(--shadow);
}

.app-main h2 {
  font-size: 1rem;
  margin-bottom: 0.75rem;
  color: var(--accent);
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.4rem;
}

/* ===========================
   ルーレット表示
   =========================== */
.roulette-section {
  padding: 1.25rem;
}

.roulette-display {
  text-align: center;
  padding: 2rem 1rem;
  margin-bottom: 1rem;
  background-color: var(--roulette-bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  min-height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.roulette-text {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.roulette-display.spinning {
  border-color: var(--accent);
}

.roulette-display.decided {
  border-color: var(--accent);
  animation: pulse-border 0.5s ease 3;
}

@keyframes pulse-border {
  0%, 100% { box-shadow: 0 0 5px var(--accent); }
  50%       { box-shadow: 0 0 20px var(--accent); }
}

/* 結果表示 */
.result-display {
  text-align: center;
  padding: 0.9rem 1rem;
  background-color: var(--result-bg);
  border: 2px solid var(--result-border);
  border-radius: 8px;
  margin-bottom: 1rem;
}

.result-display.hidden { display: none; }

.result-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

.result-text {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--accent);
}

/* 複数結果のレイアウト */
.result-text.multi {
  font-size: 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.result-item {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 4px;
  background-color: var(--accent);
  color: var(--btn-primary-text);
  font-size: 1rem;
  font-weight: 600;
}

/* 選択数 + ボタン */
.roulette-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  justify-content: space-between;
  flex-wrap: wrap;
}

.select-count-group {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.select-count-group input[type="number"] {
  width: 52px;
  padding: 0.3rem 0.4rem;
  background-color: var(--input-bg);
  color: var(--text-primary);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.9rem;
  text-align: center;
}

.select-count-max {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.roulette-buttons {
  display: flex;
  gap: 0.5rem;
}

/* ===========================
   候補一覧
   =========================== */
.candidate-list {
  position: relative; /* 項目の offsetTop をリスト基準にするため */
  list-style: none;
  max-height: 280px;
  overflow-y: auto;
}

.candidate-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.45rem 0.75rem;
  border-bottom: 1px solid var(--border);
  transition: background-color 0.15s;
}

.candidate-item:last-child { border-bottom: none; }

/* アニメーション中のハイライト（一時的） */
.candidate-item.highlight {
  background-color: var(--highlight-bg);
  color: var(--highlight-text);
}

/* 複数選択で確定したアイテム */
.candidate-item.locked {
  background-color: var(--locked-bg);
  color: var(--locked-text);
}

.candidate-item.locked .candidate-delete { color: var(--locked-text); opacity: 0.6; }

.candidate-info {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: 1;
}

.candidate-name { font-size: 0.92rem; }

.candidate-weight { display: none; }

.weight-enabled .candidate-weight {
  display: inline-flex;
  align-items: center;
  gap: 0.2rem;
  font-size: 0.75rem;
  color: var(--text-secondary);
}

.candidate-weight select {
  padding: 0.1rem 0.25rem;
  font-size: 0.75rem;
}

.candidate-delete {
  background: none;
  border: none;
  color: var(--btn-danger-bg);
  cursor: pointer;
  font-size: 1rem;
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  transition: background-color 0.2s;
}

.candidate-delete:hover {
  background-color: var(--btn-danger-bg);
  color: var(--btn-danger-text);
}

.candidate-empty {
  text-align: center;
  color: var(--text-secondary);
  padding: 1rem;
  font-size: 0.88rem;
}

/* ===========================
   入力セクション
   =========================== */
.input-group { margin-bottom: 0.9rem; }
.input-group:last-child { margin-bottom: 0; }

.input-group-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.input-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-secondary);
  margin-bottom: 0.2rem;
}

textarea {
  width: 100%;
  padding: 0.5rem;
  background-color: var(--input-bg);
  color: var(--text-primary);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.9rem;
  resize: vertical;
  font-family: inherit;
}

.input-controls {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 0.4rem;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.delimiter-select {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.82rem;
}

.file-upload-area { margin-top: 0.2rem; }
.file-upload-area input[type="file"] { font-size: 0.85rem; color: var(--text-primary); }
.file-hint { font-size: 0.72rem; color: var(--text-secondary); margin-top: 0.2rem; }

/* ===========================
   ボタン
   =========================== */
.btn {
  padding: 0.45rem 1.1rem;
  border: none;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: filter 0.2s, transform 0.1s;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn-primary { background-color: var(--btn-primary-bg); color: var(--btn-primary-text); }
.btn-primary:hover:not(:disabled) { filter: brightness(1.12); }

.btn-secondary { background-color: var(--btn-secondary-bg); color: var(--btn-secondary-text); }
.btn-secondary:hover:not(:disabled) { filter: brightness(1.12); }

.btn-danger { background-color: var(--btn-danger-bg); color: var(--btn-danger-text); }
.btn-danger:hover:not(:disabled) { filter: brightness(1.12); }

.btn-start {
  background-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  font-size: 1.1rem;
  padding: 0.65rem 2rem;
}
.btn-start:hover:not(:disabled) { filter: brightness(1.12); }

/* ===========================
   セレクトボックス（共通）
   =========================== */
select {
  padding: 0.35rem 0.4rem;
  background-color: var(--input-bg);
  color: var(--text-primary);
  border: 1px solid var(--input-border);
  border-radius: 4px;
  font-size: 0.85rem;
  cursor: pointer;
}

/* ===========================
   履歴
   =========================== */
.history-list {
  list-style: none;
  margin-bottom: 0.7rem;
}

.history-item {
  display: flex;
  justify-content: space-between;
  padding: 0.3rem 0.5rem;
  border-bottom: 1px solid var(--border);
  font-size: 0.85rem;
}

.history-item:last-child { border-bottom: none; }
.history-time { color: var(--text-secondary); font-size: 0.72rem; }
.history-empty { text-align: center; color: var(--text-secondary); padding: 0.5rem; font-size: 0.85rem; }

/* ===========================
   設定パネル
   =========================== */
.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 0.7rem;
}

.setting-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.setting-item label:first-child {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* トグルスイッチ */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 24px;
  cursor: pointer;
}

.toggle-switch input { opacity: 0; width: 0; height: 0; }

.toggle-slider {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-color: var(--toggle-bg);
  border-radius: 24px;
  transition: background-color 0.3s;
}

.toggle-slider::before {
  content: '';
  position: absolute;
  height: 18px; width: 18px;
  left: 3px; bottom: 3px;
  background-color: var(--text-primary);
  border-radius: 50%;
  transition: transform 0.3s;
}

.toggle-switch input:checked + .toggle-slider { background-color: var(--toggle-active); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(22px); }

/* ===========================
   デバッグ
   =========================== */
.debug-section.hidden { display: none; }

.debug-log {
  background-color: var(--bg-primary);
  color: var(--text-secondary);
  padding: 0.7rem;
  border-radius: 4px;
  font-size: 0.72rem;
  max-height: 180px;
  overflow-y: auto;
  white-space: pre-wrap;
  word-break: break-all;
  margin-bottom: 0.5rem;
}

/* ===========================
   ナビゲーション
   =========================== */
.site-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 1rem;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 0.4rem;
}

.nav-brand {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--accent);
  text-decoration: none;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.82rem;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--accent);
}

/* ===========================
   コンテンツセクション（使い方・FAQ）
   =========================== */
.content-section {
  line-height: 1.8;
}

.content-section h2 {
  margin-top: 0.5rem;
}

.content-section h3 {
  font-size: 0.95rem;
  color: var(--text-primary);
  margin-top: 1rem;
  margin-bottom: 0.4rem;
}

.content-section p {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.content-section ul {
  padding-left: 1.2rem;
  margin-bottom: 0.5rem;
}

.content-section li {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 0.3rem;
}

/* 使い方ステップ */
.guide-content {
  margin-bottom: 1rem;
}

.guide-step {
  margin-bottom: 0.8rem;
  padding-left: 0.5rem;
  border-left: 3px solid var(--accent);
}

.guide-step h3 {
  margin-top: 0;
  color: var(--accent);
}

/* 使用例リスト */
.use-cases {
  list-style: none;
  padding-left: 0;
}

.use-cases li {
  padding: 0.3rem 0;
  font-size: 0.88rem;
}

.use-cases li::before {
  content: '▸ ';
  color: var(--accent);
}

/* FAQ */
.faq-list {
  margin-top: 0.5rem;
}

.faq-list dt {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 0.8rem;
  padding: 0.3rem 0;
}

.faq-list dt::before {
  content: 'Q. ';
  color: var(--accent);
  font-weight: 700;
}

.faq-list dd {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-left: 0;
  padding: 0.2rem 0 0.5rem 1.2rem;
  border-bottom: 1px solid var(--border);
}

/* ===========================
   法的ページ
   =========================== */
.legal-page {
  padding-top: 1.5rem;
}

.legal-page h1 {
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 0.3rem;
}

.legal-page h2 {
  font-size: 1.05rem;
  margin-top: 1.5rem;
}

.legal-page h3 {
  font-size: 0.95rem;
  margin-top: 1rem;
}

.legal-page a {
  color: var(--accent);
}

.last-updated {
  font-size: 0.78rem;
  color: var(--text-secondary);
  margin-bottom: 1rem;
}

/* ===========================
   フッター
   =========================== */
.app-footer {
  text-align: center;
  padding: 1rem;
  color: var(--text-secondary);
  font-size: 0.78rem;
  border-top: 1px solid var(--border);
  margin-top: 0.5rem;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  margin-bottom: 0.7rem;
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.8rem;
  transition: color 0.2s;
}

.footer-nav a:hover,
.footer-nav a[aria-current="page"] {
  color: var(--accent);
}

.copyright {
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-top: 0.3rem;
}

/* ===========================
   レスポンシブ
   =========================== */
@media (max-width: 600px) {
  .app-header h1 { font-size: 1.2rem; }
  .roulette-text { font-size: 1.5rem; }
  .result-text { font-size: 1.4rem; }
  .settings-grid { grid-template-columns: repeat(2, 1fr); }

  .roulette-controls {
    flex-direction: column;
    align-items: stretch;
    gap: 0.6rem;
  }
  .roulette-buttons {
    justify-content: center;
  }
  .btn-start { width: 100%; }

  .site-nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .nav-links { gap: 0.6rem; }
}

/* 運営者情報の項目リスト（FAQの「Q.」を付けない版） */
.info-list {
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 0.4rem 1.2rem;
  margin: 0.5rem 0 1rem;
  font-size: 0.88rem;
}
.info-list dt { font-weight: 600; color: var(--text-primary); }
.info-list dd { margin: 0; color: var(--text-secondary); }