/*
  共通スタイルシート（4画面共有）
  方針:
  - フレームワーク不使用。CSS Custom Properties（変数）でテーマを一元管理
  - prefers-color-scheme でライト/ダークを自動切替
  - 「知識を得る動画を落ち着いて選ぶ」用途向けに、彩度を抑えた深緑×アンバーの配色
*/

/* ---------- テーマ変数（ライト） ---------- */
:root {
  color-scheme: light;

  --color-bg: #f4f1ea;
  --color-bg-elevated: #faf8f4;
  --color-surface: #ffffff;
  --color-surface-hover: #f7f4ee;
  --color-border: #e2ddd0;
  --color-border-strong: #cfc8b7;

  --color-text: #2a2823;
  --color-text-muted: #6c6659;
  --color-text-faint: #948d7c;

  --color-primary: #3b6e5e;
  --color-primary-hover: #2e5849;
  --color-primary-soft: #e3ede8;
  --color-primary-contrast: #ffffff;

  --color-accent: #b8863f;
  --color-accent-soft: #f4e8d2;

  --color-danger: #b3453c;
  --color-danger-soft: #f7e4e1;
  --color-success: #3b7a4a;
  --color-success-soft: #e2efe3;

  /* メモ入力済みアイコンの強調用（視聴リストのコメントボタン） */
  --color-comment: #ae9513;
  --color-comment-soft: #fbf4d0;

  /* 登録チャンネル枠のカード背景（緑系。--color-primaryと同系統で「自分で選んだ枠」感を出す） */
  --color-card-channel-bg: #dcefe3;
  --color-card-channel-border: #a8d4b8;

  /* 探索枠の色分け用パレット（10色）。ジャンルの登録順（id昇順）で割り当てる
     （app.js の genreColorIndex 参照。ハッシュ方式だと衝突しやすいため登録順固定にした） */
  --color-genre-0-bg: #fde7e6; --color-genre-0-border: #f3a7a3; /* 赤 */
  --color-genre-1-bg: #e8eefd; --color-genre-1-border: #b2c4f1; /* 青 */
  --color-genre-2-bg: #fdebd2; --color-genre-2-border: #f3bf6c; /* 橙 */
  --color-genre-3-bg: #eaf2d1; --color-genre-3-border: #c0d789; /* 黄緑 */
  --color-genre-4-bg: #f3e5f9; --color-genre-4-border: #d4a6e7; /* 紫 */
  --color-genre-5-bg: #d7f3ed; --color-genre-5-border: #8cd7c2; /* 青緑 */
  --color-genre-6-bg: #fde7f2; --color-genre-6-border: #f3a8cc; /* ピンク */
  --color-genre-7-bg: #f9f1c3; --color-genre-7-border: #e3c962; /* 黄 */
  --color-genre-8-bg: #dbeffa; --color-genre-8-border: #8fcaec; /* 水色 */
  --color-genre-9-bg: #ebe4f9; --color-genre-9-border: #bfa6e7; /* 藤色 */

  /* 視聴済みカード（現在の色 = surface-hover系のグレー） */
  --color-card-watched-bg: var(--color-surface-hover);
  --color-card-watched-border: var(--color-border);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;

  --shadow-sm: 0 1px 2px rgba(30, 26, 14, 0.06);
  --shadow-md: 0 4px 14px rgba(30, 26, 14, 0.10);
  --shadow-lg: 0 10px 28px rgba(30, 26, 14, 0.14);

  --font-sans: "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic",
    "Noto Sans JP", "Segoe UI", system-ui, -apple-system, sans-serif;

  --transition-fast: 140ms ease;
  --transition-base: 220ms ease;
}

/* ---------- テーマ変数（ダーク） ---------- */
@media (prefers-color-scheme: dark) {
  :root {
    color-scheme: dark;

    --color-bg: #1b1a17;
    --color-bg-elevated: #211f1b;
    --color-surface: #262420;
    --color-surface-hover: #2d2b25;
    --color-border: #3b382f;
    --color-border-strong: #4c4838;

    --color-text: #ece7db;
    --color-text-muted: #b3ac99;
    --color-text-faint: #837c6a;

    --color-primary: #71b39c;
    --color-primary-hover: #8bc4af;
    --color-primary-soft: #223530;
    --color-primary-contrast: #12211c;

    --color-accent: #dba85b;
    --color-accent-soft: #3a2f1c;

    --color-danger: #e2887e;
    --color-danger-soft: #3a201d;
    --color-success: #86c295;
    --color-success-soft: #1f3324;

    --color-comment: #f0d54c;
    --color-comment-soft: #433a19;

    --color-card-channel-bg: #23362a;
    --color-card-channel-border: #375540;

    --color-genre-0-bg: #512c27; --color-genre-0-border: #713a30;
    --color-genre-1-bg: #2a3654; --color-genre-1-border: #3c4a70;
    --color-genre-2-bg: #503b20; --color-genre-2-border: #72562a;
    --color-genre-3-bg: #3e4820; --color-genre-3-border: #576528;
    --color-genre-4-bg: #412b4d; --color-genre-4-border: #5c406c;
    --color-genre-5-bg: #274e43; --color-genre-5-border: #346e5c;
    --color-genre-6-bg: #4e2b48; --color-genre-6-border: #713960;
    --color-genre-7-bg: #4e4321; --color-genre-7-border: #6d5e2a;
    --color-genre-8-bg: #274356; --color-genre-8-border: #345e7c;
    --color-genre-9-bg: #382a58; --color-genre-9-border: #4e3878;

    --color-card-watched-bg: var(--color-surface-hover);
    --color-card-watched-border: var(--color-border);

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
    --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.45);
    --shadow-lg: 0 10px 28px rgba(0, 0, 0, 0.55);
  }
}

/* テーマ変数を手動で上書きしたい場合に備え、data-theme 属性版も用意 */
:root[data-theme="dark"] {
  color-scheme: dark;
  --color-bg: #1b1a17;
  --color-bg-elevated: #211f1b;
  --color-surface: #262420;
  --color-surface-hover: #2d2b25;
  --color-border: #3b382f;
  --color-border-strong: #4c4838;
  --color-text: #ece7db;
  --color-text-muted: #b3ac99;
  --color-text-faint: #837c6a;
  --color-primary: #71b39c;
  --color-primary-hover: #8bc4af;
  --color-primary-soft: #223530;
  --color-primary-contrast: #12211c;
  --color-accent: #dba85b;
  --color-accent-soft: #3a2f1c;
  --color-danger: #e2887e;
  --color-danger-soft: #3a201d;
  --color-success: #86c295;
  --color-success-soft: #1f3324;
  --color-comment: #f0d54c;
  --color-comment-soft: #433a19;
  --color-card-channel-bg: #23362a;
  --color-card-channel-border: #375540;
  --color-genre-0-bg: #512c27; --color-genre-0-border: #713a30;
  --color-genre-1-bg: #2a3654; --color-genre-1-border: #3c4a70;
  --color-genre-2-bg: #503b20; --color-genre-2-border: #72562a;
  --color-genre-3-bg: #3e4820; --color-genre-3-border: #576528;
  --color-genre-4-bg: #412b4d; --color-genre-4-border: #5c406c;
  --color-genre-5-bg: #274e43; --color-genre-5-border: #346e5c;
  --color-genre-6-bg: #4e2b48; --color-genre-6-border: #713960;
  --color-genre-7-bg: #4e4321; --color-genre-7-border: #6d5e2a;
  --color-genre-8-bg: #274356; --color-genre-8-border: #345e7c;
  --color-genre-9-bg: #382a58; --color-genre-9-border: #4e3878;
  --color-card-watched-bg: var(--color-surface-hover);
  --color-card-watched-border: var(--color-border);
}
:root[data-theme="light"] {
  color-scheme: light;
  --color-bg: #f4f1ea;
  --color-bg-elevated: #faf8f4;
  --color-surface: #ffffff;
  --color-surface-hover: #f7f4ee;
  --color-border: #e2ddd0;
  --color-border-strong: #cfc8b7;
  --color-text: #2a2823;
  --color-text-muted: #6c6659;
  --color-text-faint: #948d7c;
  --color-primary: #3b6e5e;
  --color-primary-hover: #2e5849;
  --color-primary-soft: #e3ede8;
  --color-primary-contrast: #ffffff;
  --color-accent: #b8863f;
  --color-accent-soft: #f4e8d2;
  --color-danger: #b3453c;
  --color-danger-soft: #f7e4e1;
  --color-success: #3b7a4a;
  --color-success-soft: #e2efe3;
  --color-comment: #ae9513;
  --color-comment-soft: #fbf4d0;
  --color-card-channel-bg: #dcefe3;
  --color-card-channel-border: #a8d4b8;
  --color-genre-0-bg: #fde7e6; --color-genre-0-border: #f3a7a3;
  --color-genre-1-bg: #e8eefd; --color-genre-1-border: #b2c4f1;
  --color-genre-2-bg: #fdebd2; --color-genre-2-border: #f3bf6c;
  --color-genre-3-bg: #eaf2d1; --color-genre-3-border: #c0d789;
  --color-genre-4-bg: #f3e5f9; --color-genre-4-border: #d4a6e7;
  --color-genre-5-bg: #d7f3ed; --color-genre-5-border: #8cd7c2;
  --color-genre-6-bg: #fde7f2; --color-genre-6-border: #f3a8cc;
  --color-genre-7-bg: #f9f1c3; --color-genre-7-border: #e3c962;
  --color-genre-8-bg: #dbeffa; --color-genre-8-border: #8fcaec;
  --color-genre-9-bg: #ebe4f9; --color-genre-9-border: #bfa6e7;
  --color-card-watched-bg: var(--color-surface-hover);
  --color-card-watched-border: var(--color-border);
}

/* Alpine.js が読み込まれるまで x-data 要素を隠す（初期化前のチラつき防止） */
[x-cloak] {
  display: none !important;
}

/* ---------- リセット ---------- */
* ,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: 1.6;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

img {
  max-width: 100%;
  display: block;
}

a {
  color: var(--color-primary);
}

button,
input,
select {
  font: inherit;
  color: inherit;
}

ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1, h2, h3, p {
  margin: 0;
}

/* ---------- レイアウト共通 ---------- */
.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: var(--color-bg-elevated);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: saturate(140%) blur(6px);
}

.app-header__inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0.9rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.app-title {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: var(--color-text);
  white-space: nowrap;
}

.app-title__mark {
  color: var(--color-primary);
}

.app-nav {
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.app-nav a {
  text-decoration: none;
  color: var(--color-text-muted);
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.app-nav a:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.app-nav a[aria-current="page"] {
  color: var(--color-primary-contrast);
  background: var(--color-primary);
}

.app-main {
  flex: 1;
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  padding: 1.75rem 1.25rem 3.5rem;
}

.page-heading {
  margin-bottom: 1.4rem;
}

.page-heading h1 {
  font-size: 1.4rem;
  font-weight: 700;
}

.page-heading p {
  margin-top: 0.35rem;
  color: var(--color-text-muted);
  font-size: 0.92rem;
}

/* ---------- 状態表示（ローディング／エラー／空） ---------- */
.state-banner {
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
  padding: 1.1rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.state-banner__icon {
  font-size: 1.3rem;
  line-height: 1;
}

.state-banner__body h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.3rem;
}

.state-banner__body p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.state-banner--warning {
  border-color: var(--color-accent);
  background: var(--color-accent-soft);
}

.state-banner--warning .state-banner__body h2 {
  color: #7a5a22;
}
@media (prefers-color-scheme: dark) {
  .state-banner--warning .state-banner__body h2 {
    color: var(--color-accent);
  }
}

.state-banner--error {
  border-color: var(--color-danger);
  background: var(--color-danger-soft);
}

.state-banner--error .state-banner__body h2 {
  color: var(--color-danger);
}

.state-banner--loading {
  color: var(--color-text-muted);
}

/* ---------- ジャンル凡例（色分けとジャンル名の対応表） ---------- */
.genre-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem 1rem;
  margin-bottom: 1rem;
}

.genre-legend__item {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* 色そのものは .video-card--genre-N / .video-card--channel を流用する
   （カード背景と同じ配色にする。凡例だけ別パレットを持たせると同期が崩れるため） */
.genre-legend__swatch {
  width: 0.7rem;
  height: 0.7rem;
  border-radius: 50%;
  border: 2px solid;
  flex-shrink: 0;
}

/* ---------- カードグリッド ---------- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.1rem;
}

.video-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.1rem 1.15rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  position: relative;
}

.video-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-border-strong);
}

/* ---------- カード背景の色分け（登録チャンネル枠／探索枠ジャンル別） ---------- */
/* 登録チャンネル枠 */
.video-card--channel {
  background: var(--color-card-channel-bg);
  border-color: var(--color-card-channel-border);
}

/* 探索枠（ジャンルごとにハッシュで8色から割り当てる。videoCardColorClass() 参照） */
.video-card--genre-0 { background: var(--color-genre-0-bg); border-color: var(--color-genre-0-border); }
.video-card--genre-1 { background: var(--color-genre-1-bg); border-color: var(--color-genre-1-border); }
.video-card--genre-2 { background: var(--color-genre-2-bg); border-color: var(--color-genre-2-border); }
.video-card--genre-3 { background: var(--color-genre-3-bg); border-color: var(--color-genre-3-border); }
.video-card--genre-4 { background: var(--color-genre-4-bg); border-color: var(--color-genre-4-border); }
.video-card--genre-5 { background: var(--color-genre-5-bg); border-color: var(--color-genre-5-border); }
.video-card--genre-6 { background: var(--color-genre-6-bg); border-color: var(--color-genre-6-border); }
.video-card--genre-7 { background: var(--color-genre-7-bg); border-color: var(--color-genre-7-border); }
.video-card--genre-8 { background: var(--color-genre-8-bg); border-color: var(--color-genre-8-border); }
.video-card--genre-9 { background: var(--color-genre-9-bg); border-color: var(--color-genre-9-border); }

/* 視聴済み: 上記の色分けより優先してグレーにする（CSS内で後に書かれている方が勝つ） */
.video-card--watched {
  background: var(--color-card-watched-bg);
  border-color: var(--color-card-watched-border);
}

.video-card--watched .video-card__title a {
  color: var(--color-text-muted);
}

.video-card__thumbnail {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-md);
  background: var(--color-surface-hover);
}

.video-card__title {
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.45;
}

.video-card__title a {
  text-decoration: none;
  color: var(--color-text);
}

.video-card__title a:hover {
  color: var(--color-primary);
  text-decoration: underline;
}

.video-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 0.9rem;
  color: var(--color-text-muted);
  font-size: 0.84rem;
}

.video-card__meta span {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.video-card__slot-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 600;
  padding: 0.15rem 0.5rem;
  border-radius: 999px;
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.video-card__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem 0.9rem;
  padding-top: 0.35rem;
  border-top: 1px dashed var(--color-border);
}

/* ---------- チェックボックス／トグル系 ---------- */
.control-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  cursor: pointer;
  font-size: 0.86rem;
  user-select: none;
}

.control-checkbox input[type="checkbox"] {
  width: 1.05rem;
  height: 1.05rem;
  accent-color: var(--color-primary);
  cursor: pointer;
}

.favorite-toggle {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 999px;
  width: 2.15rem;
  height: 2.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.05rem;
  color: var(--color-text-faint);
  transition: transform var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast);
}

.favorite-toggle:hover {
  transform: scale(1.08);
  border-color: var(--color-accent);
}

.favorite-toggle[aria-pressed="true"] {
  color: var(--color-danger);
  border-color: var(--color-danger);
  background: var(--color-danger-soft);
}

/* ---------- メモ（コメント）ボタン ---------- */
.comment-toggle {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: 999px;
  width: 2.15rem;
  height: 2.15rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--color-text-faint);
  transition: transform var(--transition-fast), border-color var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
}

.comment-toggle__icon {
  display: block;
}

.comment-toggle:hover {
  transform: scale(1.08);
  border-color: var(--color-accent);
}

/* メモが入っているカードは一目で分かるよう強調する。
   外円（枠線・背景）はお気に入り等と同系統の緑のまま、中のアイコンだけ
   黄色にすることで「マークそのもの」が目立つようにする */
.comment-toggle.has-comment {
  border-color: var(--color-primary);
  background: var(--color-primary-soft);
  color: var(--color-comment);
}

/* ---------- 星評価 ---------- */
.star-rating {
  display: inline-flex;
  gap: 0.15rem;
}

.star-rating button {
  background: none;
  border: none;
  padding: 0.1rem;
  cursor: pointer;
  font-size: 1.15rem;
  line-height: 1;
  color: var(--color-border-strong);
  transition: transform var(--transition-fast), color var(--transition-fast);
}

.star-rating button:hover {
  transform: scale(1.15);
}

.star-rating button.is-filled,
.star-rating span.is-filled {
  color: var(--color-accent);
}

.star-rating span {
  color: var(--color-border-strong);
  line-height: 1;
}

.star-rating button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ---------- タグ ---------- */
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--color-primary-soft);
  color: var(--color-primary);
  border-radius: 999px;
  padding: 0.2rem 0.6rem 0.2rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 600;
}

.tag-chip button {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  font-size: 0.85rem;
  line-height: 1;
  padding: 0;
  opacity: 0.65;
  transition: opacity var(--transition-fast);
}

.tag-chip button:hover {
  opacity: 1;
}

.tag-chip--static {
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
}

.tag-add-form {
  display: flex;
  gap: 0.4rem;
  align-items: center;
  flex-wrap: wrap;
}

.tag-add-form input {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.32rem 0.55rem;
  font-size: 0.82rem;
  background: var(--color-surface);
  width: 8.5rem;
}

.tag-add-form input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

/* ---------- 探索枠チャンネルの除外ボタン ---------- */
.block-channel-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.block-channel-row .helper-text {
  margin-top: 0;
}

/* ---------- 保存状態インジケータ ---------- */
.save-indicator {
  position: absolute;
  top: 0.85rem;
  right: 0.95rem;
  font-size: 0.74rem;
  font-weight: 600;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  opacity: 0;
  transform: translateY(-3px);
  transition: opacity var(--transition-base), transform var(--transition-base);
  pointer-events: none;
}

.save-indicator.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.save-indicator--saving {
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
}

.save-indicator--saved {
  background: var(--color-success-soft);
  color: var(--color-success);
}

.save-indicator--error {
  background: var(--color-danger-soft);
  color: var(--color-danger);
}

/* ---------- ボタン ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  padding: 0.5rem 1rem;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), opacity var(--transition-fast);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}

.btn-primary:hover:not(:disabled) {
  background: var(--color-primary-hover);
}

.btn-secondary {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-surface-hover);
}

.btn-danger {
  background: var(--color-surface);
  border-color: var(--color-danger);
  color: var(--color-danger);
}

.btn-danger:hover:not(:disabled) {
  background: var(--color-danger-soft);
}

.btn-sm {
  padding: 0.32rem 0.7rem;
  font-size: 0.8rem;
}

/* ---------- フォーム ---------- */
.form-panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.35rem;
}

.form-panel h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.9rem;
}

.form-row {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  align-items: flex-start;
}

.form-field {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  flex: 1 1 200px;
}

.form-field label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.form-field input {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.7rem;
  font-size: 0.9rem;
  background: var(--color-bg-elevated);
}

.form-field input:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}

.form-error {
  margin-top: 0.7rem;
  padding: 0.65rem 0.85rem;
  border-radius: var(--radius-sm);
  background: var(--color-danger-soft);
  color: var(--color-danger);
  font-size: 0.85rem;
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
}

/* ---------- 一覧テーブル風リスト（管理画面） ---------- */
.entity-list {
  margin-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.entity-row {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  padding: 0.75rem 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-elevated);
  flex-wrap: wrap;
}

.entity-row__main {
  flex: 1 1 220px;
  min-width: 0;
}

.entity-row__title {
  font-weight: 700;
  font-size: 0.92rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.entity-row__sub {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.entity-row__actions {
  display: flex;
  gap: 0.4rem;
  align-items: center;
}

.confirm-inline {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.8rem;
  color: var(--color-danger);
  background: var(--color-danger-soft);
  padding: 0.35rem 0.5rem;
  border-radius: var(--radius-sm);
}

/* ---------- フィルタバー（視聴リスト） ---------- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.85rem 1rem;
  margin-bottom: 1.25rem;
}

.filter-bar label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.filter-bar select {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.6rem;
  background: var(--color-bg-elevated);
  font-size: 0.86rem;
}

.result-count {
  color: var(--color-text-muted);
  font-size: 0.82rem;
  margin-left: auto;
}

.load-more-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.3rem;
}

/* ---------- 履歴：日付リスト ---------- */
.history-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 1.5rem;
  align-items: start;
}

.date-list {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.6rem;
  max-height: 70vh;
  overflow-y: auto;
}

.date-list button {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.7rem;
  text-align: left;
  cursor: pointer;
  color: var(--color-text);
  font-size: 0.86rem;
  transition: background var(--transition-fast);
}

.date-list button:hover {
  background: var(--color-surface-hover);
}

.date-list button[aria-current="true"] {
  background: var(--color-primary);
  color: var(--color-primary-contrast);
}

.date-list .count-badge {
  font-size: 0.72rem;
  padding: 0.05rem 0.45rem;
  border-radius: 999px;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
}

.date-list button[aria-current="true"] .count-badge {
  background: rgba(255, 255, 255, 0.25);
  color: inherit;
}

/* ---------- 履歴：月ごとのグループ化トグル ---------- */
.date-month-group + .date-month-group {
  margin-top: 0.3rem;
  padding-top: 0.3rem;
  border-top: 1px solid var(--color-border);
}

.date-month-toggle {
  width: 100%;
  font-weight: 700;
}

.date-month-toggle__meta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.date-month-toggle__icon {
  color: var(--color-text-faint);
  font-size: 0.8rem;
  width: 1em;
  display: inline-block;
  text-align: center;
}

/* 月の中の日付一覧は少しインデントして階層をわかりやすくする */
.date-month-body {
  padding-left: 0.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.date-month-body button {
  font-weight: 400;
  font-size: 0.82rem;
}

/* ---------- 折りたたみ可能なセクション見出し（管理画面の除外チャンネル等） ---------- */
.section-toggle {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  font-size: 1rem;
  font-weight: 700;
}

.section-toggle__meta {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.section-toggle__count {
  font-size: 0.72rem;
  font-weight: 400;
  padding: 0.05rem 0.45rem;
  border-radius: 999px;
  background: var(--color-surface-hover);
  color: var(--color-text-muted);
}

.section-toggle__icon {
  color: var(--color-text-faint);
  font-size: 0.8rem;
  width: 1em;
  display: inline-block;
  text-align: center;
}

@media (max-width: 760px) {
  .history-layout {
    grid-template-columns: 1fr;
  }
  .date-list {
    max-height: 40vh;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .date-list button {
    flex: 1 1 auto;
  }
}

/* ---------- フッター的な小テキスト ---------- */
.helper-text {
  font-size: 0.78rem;
  color: var(--color-text-faint);
  margin-top: 0.6rem;
}

.helper-text kbd {
  display: inline-block;
  padding: 0.05rem 0.4rem;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-bg-elevated);
  font-family: inherit;
  font-size: 0.78rem;
}

/* ---------- モーダル（メモ編集など） ---------- */
/* 動画カードのサイズをメモの有無・長さで変動させないため、編集は画面中央の
   モーダルに集約する（カード側は状態を示す小さなボタンのみ持つ）。 */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(20, 18, 12, 0.55);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  z-index: 100;
}

.modal-box {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1.25rem 1.35rem;
  width: 100%;
  max-width: 480px;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.modal-box__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-box__header h2 {
  font-size: 1rem;
  font-weight: 700;
}

.modal-box__close {
  border: none;
  background: transparent;
  font-size: 1.3rem;
  line-height: 1;
  color: var(--color-text-faint);
  cursor: pointer;
  padding: 0.2rem 0.4rem;
}

.modal-box__close:hover {
  color: var(--color-text);
}

.modal-box textarea {
  width: 100%;
  resize: vertical;
  min-height: 8rem;
  font: inherit;
  color: var(--color-text);
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.6rem 0.7rem;
}

.modal-box__actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* ---------- 統計画面 ---------- */
.stats-cards {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.stat-card {
  flex: 1;
  min-width: 10rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 1.1rem 1.3rem;
  text-align: center;
}

.stat-card__value {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.2;
}

.stat-card__label {
  margin-top: 0.3rem;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.genre-bar-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.genre-bar-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.genre-bar-row__label {
  width: 7rem;
  flex-shrink: 0;
  font-size: 0.85rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.genre-bar-row__track {
  flex: 1;
  height: 0.85rem;
  background: var(--color-surface-hover);
  border-radius: 999px;
  overflow: hidden;
}

.genre-bar-row__fill {
  display: block;
  height: 100%;
  background: var(--color-primary);
  border-radius: 999px;
  transition: width var(--transition-fast);
}

.genre-bar-row__count {
  width: 3.2rem;
  flex-shrink: 0;
  text-align: right;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ---------- レスポンシブ全般 ---------- */
@media (max-width: 600px) {
  .app-main {
    padding: 1.1rem 0.85rem 3rem;
  }
  .video-grid {
    grid-template-columns: 1fr;
  }
  .app-header__inner {
    padding: 0.75rem 0.9rem;
  }
  .result-count {
    margin-left: 0;
  }
}