/* Aiki Notes — 合気道無限塾
   スマホアプリ風UI / 明朝体 / 合気道無限塾HP の色を継承
*/

@import url('https://fonts.googleapis.com/css2?family=EB+Garamond:wght@400;500;600&family=Noto+Serif+JP:wght@400;500;700&display=swap');

:root {
  --c-bg-app: #f0ece5;            /* アプリ外側 */
  --c-bg: #faf8f5;                /* 画面内 */
  --c-bg-white: #ffffff;
  --c-bg-tint: #e8f6f8;
  --c-text: #1a2e35;
  --c-text-sub: #4a6572;
  --c-text-mute: #8a8580;
  --c-accent: #1a9aab;
  --c-accent-dark: #147a8a;
  --c-accent-deep: #0a4a55;
  --c-accent-soft: #e8f6f8;
  --c-border: #e5e0d8;
  --c-border-soft: #f0ede8;
  --c-success: #2d8659;
  --c-warn: #b8743a;
  --c-danger: #a04040;
  --c-shadow-card: 0 1px 3px rgba(26, 46, 53, 0.06), 0 4px 12px rgba(26, 46, 53, 0.04);
  --c-shadow-hero: 0 4px 20px rgba(26, 154, 171, 0.15), 0 1px 3px rgba(26, 46, 53, 0.08);
  --c-shadow-fab: 0 6px 16px rgba(26, 154, 171, 0.35), 0 2px 6px rgba(26, 46, 53, 0.1);
  --c-shadow-tab: 0 -2px 12px rgba(26, 46, 53, 0.06);
  --font-jp: 'Noto Serif JP', 'Yu Mincho', '游明朝', YuMincho, 'Hiragino Mincho ProN', serif;
  --font-en: 'EB Garamond', 'Noto Serif JP', serif;
  --tabbar-h: 64px;
  --hdr-h: 52px;
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-top: env(safe-area-inset-top, 0px);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }
html, body { margin: 0; padding: 0; height: 100%; overscroll-behavior: none; }
body {
  font-family: var(--font-jp);
  background: var(--c-bg-app);
  color: var(--c-text);
  font-size: 15px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  font-weight: 400;
}

/* アプリフレーム = スマホ画面風 */
.app-frame {
  max-width: 480px;
  margin: 0 auto;
  background: var(--c-bg);
  min-height: 100vh;
  position: relative;
  display: flex;
  flex-direction: column;
  box-shadow: 0 0 40px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}
@media (min-width: 481px) {
  .app-frame {
    min-height: 100vh;
    max-height: 100vh;
  }
}

/* ステータスバー風 */
.status-spacer {
  height: var(--safe-top);
  background: var(--c-bg);
}

/* アプリヘッダー */
.app-hdr {
  background: var(--c-bg);
  padding: 14px 20px 8px;
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--c-border-soft);
}
.app-hdr-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.page-title {
  font-family: var(--font-jp);
  font-size: 18px;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.12em;
  color: var(--c-text);
}
.icon-btn {
  background: none;
  border: none;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--c-text-sub);
  border-radius: 10px;
  transition: background-color 0.15s;
}
.icon-btn:hover { background: var(--c-border-soft); }
.icon-btn:active { background: var(--c-border); }

/* ビュー領域 */
.view-area {
  flex: 1;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: calc(var(--tabbar-h) + var(--safe-bottom) + 16px);
}
.view { display: none; padding: 16px 20px 20px; }
.view.active { display: block; animation: viewIn 0.25s ease-out; }
@keyframes viewIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ブランドヒーロー（ホーム上部） */
.brand-hero {
  text-align: center;
  padding: 12px 0 24px;
}
.brand-name {
  font-family: var(--font-en);
  font-size: 30px;
  font-weight: 500;
  color: var(--c-accent);
  letter-spacing: 0.14em;
  line-height: 1.1;
}
.brand-tag {
  font-family: var(--font-jp);
  font-size: 11px;
  color: var(--c-text-mute);
  letter-spacing: 0.24em;
  margin-top: 8px;
}

/* ヒーローカード（審査カウントダウン） */
.hero-card {
  background: linear-gradient(135deg, #ffffff 0%, #f0fafb 100%);
  border-radius: 16px;
  padding: 20px 22px 22px;
  margin-bottom: 24px;
  box-shadow: var(--c-shadow-hero);
  border: 1px solid var(--c-border-soft);
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: '';
  position: absolute;
  top: -20px;
  right: -20px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(26, 154, 171, 0.06) 0%, transparent 70%);
}
.hero-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  position: relative;
}
.hero-target {
  font-family: var(--font-jp);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: 0.12em;
}
.hero-sep { color: var(--c-text-mute); margin: 0 6px; font-weight: 400; }
.hero-edit-btn {
  background: var(--c-bg-white);
  border: 1px solid var(--c-border);
  color: var(--c-text-sub);
  padding: 4px 12px;
  font-size: 11px;
  font-family: var(--font-jp);
  letter-spacing: 0.12em;
  cursor: pointer;
  border-radius: 999px;
}
.hero-edit-btn:hover { border-color: var(--c-accent); color: var(--c-accent); }
.hero-cd {
  text-align: center;
  padding: 12px 0 16px;
  position: relative;
}
.hero-cd-label {
  font-family: var(--font-en);
  font-size: 10px;
  color: var(--c-text-mute);
  letter-spacing: 0.28em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.hero-cd-value {
  font-family: var(--font-en);
  font-size: 56px;
  font-weight: 500;
  color: var(--c-accent);
  line-height: 1;
  letter-spacing: 0.02em;
}
.hero-cd-unit {
  font-family: var(--font-en);
  font-size: 14px;
  color: var(--c-text-sub);
  margin-left: 8px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.hero-link {
  background: none;
  border: none;
  color: var(--c-accent-dark);
  font-size: 11px;
  font-family: var(--font-jp);
  cursor: pointer;
  margin-top: 10px;
  padding: 4px 0;
  letter-spacing: 0.12em;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.hero-progress {
  border-top: 1px solid var(--c-border-soft);
  padding-top: 14px;
  font-size: 12px;
  position: relative;
}
.hero-pg-row {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 6px;
}
.hero-pg-label {
  font-weight: 500;
  letter-spacing: 0.12em;
  color: var(--c-text);
}
.hero-pg-num {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 500;
  color: var(--c-accent);
  letter-spacing: 0.04em;
}
.hero-pg-bar {
  background: var(--c-border-soft);
  height: 4px;
  border-radius: 2px;
  overflow: hidden;
}
.hero-pg-fill {
  background: linear-gradient(90deg, var(--c-accent) 0%, #2eb8ca 100%);
  height: 100%;
  width: 0%;
  transition: width 0.4s ease;
  border-radius: 2px;
}
.hero-pg-sub {
  display: flex;
  justify-content: space-between;
  margin-top: 10px;
  color: var(--c-text-mute);
  font-size: 11px;
  letter-spacing: 0.1em;
}

/* 稽古スタッツ 3カラム */
.stats-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-bottom: 24px;
}
.stat-cell {
  background: var(--c-bg-white);
  border: 1px solid var(--c-border-soft);
  border-radius: 14px;
  padding: 16px 8px 14px;
  text-align: center;
  box-shadow: var(--c-shadow-card);
}
.stat-num {
  font-family: var(--font-en);
  font-size: 26px;
  font-weight: 500;
  color: var(--c-accent);
  line-height: 1.1;
  letter-spacing: 0.02em;
}
.stat-label {
  font-family: var(--font-jp);
  font-size: 10px;
  color: var(--c-text-mute);
  letter-spacing: 0.18em;
  margin-top: 6px;
  font-weight: 500;
}

/* 最近覚えた技 */
.mastered-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.mastered-item {
  background: var(--c-bg-white);
  border: 1px solid var(--c-border-soft);
  border-left: 3px solid var(--c-success);
  border-radius: 0 10px 10px 0;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: background-color 0.15s;
}
.mastered-item:hover { background: var(--c-bg); }
.mastered-main { min-width: 0; }
.mastered-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--c-text);
  letter-spacing: 0.04em;
}
.mastered-meta {
  font-size: 10px;
  color: var(--c-text-mute);
  letter-spacing: 0.08em;
  margin-top: 2px;
}
.mastered-date {
  font-family: var(--font-en);
  font-size: 11px;
  color: var(--c-success);
  font-weight: 500;
  letter-spacing: 0.06em;
  margin-left: 12px;
  flex-shrink: 0;
}
.mastered-empty {
  padding: 24px 20px;
  text-align: center;
  color: var(--c-text-mute);
  font-size: 12px;
  letter-spacing: 0.08em;
  background: var(--c-bg-white);
  border-radius: 14px;
  border: 1px dashed var(--c-border);
  line-height: 1.8;
}

/* ブロック（最近の稽古など） */
.block { margin-bottom: 24px; }
.block-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
  padding: 0 4px;
}
.block-title {
  font-family: var(--font-jp);
  font-size: 13px;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.18em;
  color: var(--c-text);
}
.block-link {
  background: none;
  border: none;
  color: var(--c-accent);
  font-size: 11px;
  font-family: var(--font-jp);
  cursor: pointer;
  letter-spacing: 0.1em;
  padding: 0;
}
.block-link:hover { color: var(--c-accent-dark); }

/* セッションリスト */
.sessions-list, .sessions-list-full {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.session-card {
  background: var(--c-bg-white);
  border-radius: 14px;
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 14px;
  align-items: start;
  cursor: pointer;
  box-shadow: var(--c-shadow-card);
  border: 1px solid var(--c-border-soft);
  transition: transform 0.1s, box-shadow 0.15s;
}
.session-card:active { transform: scale(0.98); }
.session-date {
  text-align: center;
  background: var(--c-accent-soft);
  padding: 6px 0;
  border-radius: 10px;
  min-width: 56px;
}
.ses-month {
  font-family: var(--font-en);
  font-size: 9px;
  color: var(--c-accent-dark);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  font-weight: 600;
}
.ses-day {
  font-family: var(--font-en);
  font-size: 24px;
  font-weight: 500;
  color: var(--c-accent);
  line-height: 1;
  margin: 2px 0;
}
.ses-year {
  font-family: var(--font-en);
  font-size: 9px;
  color: var(--c-accent-dark);
  letter-spacing: 0.1em;
}
.session-body { min-width: 0; }
.ses-dojo {
  font-size: 13px;
  font-weight: 700;
  color: var(--c-text);
  letter-spacing: 0.08em;
}
.ses-teacher {
  font-size: 11px;
  color: var(--c-text-mute);
  letter-spacing: 0.08em;
  margin-left: 6px;
  font-weight: 400;
}
.ses-memo-snip {
  font-size: 13px;
  color: var(--c-text-sub);
  margin-top: 4px;
  line-height: 1.6;
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  letter-spacing: 0.04em;
}
.ses-techs {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin-top: 8px;
}
.ses-tech-mini {
  font-size: 10px;
  padding: 2px 8px;
  border-radius: 999px;
  color: var(--c-accent-dark);
  background: var(--c-accent-soft);
  letter-spacing: 0.06em;
  font-weight: 500;
}
.ses-empty {
  padding: 28px 20px;
  text-align: center;
  color: var(--c-text-mute);
  font-size: 12px;
  letter-spacing: 0.1em;
  background: var(--c-bg-white);
  border-radius: 14px;
  border: 1px dashed var(--c-border);
  line-height: 1.8;
}

/* ホームのクイックアクション */
.quick-search-btn {
  width: 100%;
  background: var(--c-bg-white);
  border: 1px solid var(--c-border-soft);
  border-radius: 14px;
  padding: 16px 20px;
  font-family: var(--font-jp);
  font-size: 14px;
  color: var(--c-text);
  letter-spacing: 0.1em;
  cursor: pointer;
  box-shadow: var(--c-shadow-card);
  text-align: left;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.quick-search-btn:hover { background: var(--c-accent-soft); color: var(--c-accent-dark); }
.quick-search-btn:active { transform: scale(0.98); }
.qs-arrow { color: var(--c-accent); font-family: var(--font-en); }

/* === Library view === */
.lib-hdr { padding: 0 0 12px; }
.search-wrap { position: relative; margin-bottom: 14px; }
#search-input {
  width: 100%;
  padding: 14px 80px 14px 18px;
  border-radius: 12px;
  border: 1px solid var(--c-border);
  background: var(--c-bg-white);
  font-size: 15px;
  font-family: var(--font-jp);
  color: var(--c-text);
  letter-spacing: 0.04em;
  box-shadow: var(--c-shadow-card);
}
#search-input::placeholder { color: var(--c-text-mute); }
#search-input:focus { outline: none; border-color: var(--c-accent); }
.beta-badge {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: var(--c-accent);
  color: #fff;
  font-family: var(--font-en);
  font-size: 9px;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 999px;
  letter-spacing: 0.16em;
  pointer-events: none;
  text-transform: uppercase;
}
.filters {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}
.filter-group { display: flex; gap: 6px; }
.chip, .chip-sub {
  background: var(--c-bg-white);
  border: 1px solid var(--c-border);
  border-radius: 999px;
  padding: 6px 12px;
  font-size: 12px;
  cursor: pointer;
  color: var(--c-text-sub);
  font-family: var(--font-jp);
  letter-spacing: 0.08em;
  font-weight: 500;
  box-shadow: var(--c-shadow-card);
  transition: all 0.15s;
}
.chip.active, .chip-sub.active {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
  font-weight: 700;
}
.kyu-current {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: var(--c-accent-soft);
  border-radius: 10px;
  font-size: 12px;
  color: var(--c-accent-deep);
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  font-weight: 500;
}
.kyu-current-label {
  font-family: var(--font-en);
  font-size: 9px;
  color: var(--c-accent-dark);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-right: 2px;
}
.kyu-sep { color: var(--c-text-mute); }
.kyu-change {
  margin-left: auto;
  background: var(--c-bg-white);
  border: 1px solid var(--c-accent);
  border-radius: 999px;
  padding: 3px 10px;
  font-size: 10px;
  cursor: pointer;
  color: var(--c-accent);
  font-family: var(--font-jp);
  letter-spacing: 0.1em;
}

/* 技リスト */
.list { display: flex; flex-direction: column; gap: 8px; }
.tech-card {
  background: var(--c-bg-white);
  border-radius: 12px;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  box-shadow: var(--c-shadow-card);
  border: 1px solid var(--c-border-soft);
  transition: transform 0.1s, box-shadow 0.15s;
}
.tech-card:active { transform: scale(0.98); }
.tech-card.check-o { border-left: 4px solid var(--c-success); padding-left: 12px; }
.tech-card.check-d { border-left: 4px solid var(--c-warn); padding-left: 12px; }
.tech-card.check-x { border-left: 4px solid var(--c-danger); padding-left: 12px; }
.tech-main { flex: 1; min-width: 0; }
.tech-no {
  display: inline-block;
  color: var(--c-text-mute);
  font-size: 10px;
  font-weight: 500;
  margin-right: 8px;
  font-family: var(--font-en);
  letter-spacing: 0.1em;
  min-width: 22px;
}
.tech-kyu-label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--c-accent);
  background: var(--c-accent-soft);
  padding: 2px 8px;
  border-radius: 999px;
  margin-bottom: 4px;
  text-transform: uppercase;
}
.tech-name {
  font-weight: 500;
  font-size: 15px;
  color: var(--c-text);
  letter-spacing: 0.04em;
}
.tech-romaji {
  font-size: 10px;
  color: var(--c-text-mute);
  font-family: var(--font-en);
  margin-top: 2px;
  letter-spacing: 0.16em;
  font-style: italic;
}
.tech-badges {
  display: flex;
  gap: 4px;
  margin-top: 6px;
  flex-wrap: wrap;
}
.badge {
  font-size: 9px;
  padding: 2px 7px;
  font-weight: 500;
  letter-spacing: 0.12em;
  font-family: var(--font-jp);
  border-radius: 999px;
}
.badge-pos { color: #fff; background: var(--c-accent); }
.badge-hand { color: var(--c-text-sub); background: var(--c-border-soft); font-family: var(--font-en); letter-spacing: 0.16em; }
.badge-video-yes { color: #fff; background: var(--c-success); }
.badge-video-no { color: var(--c-text-mute); background: var(--c-border-soft); }
.badge-video-soon { color: #fff; background: var(--c-warn); }

.tech-right { margin-left: 12px; display: flex; align-items: center; gap: 8px; }
.tech-check {
  font-size: 14px;
  font-weight: 500;
  width: 30px;
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--c-border);
  color: var(--c-text-mute);
  font-family: var(--font-en);
}
.tech-check.o { background: var(--c-success); color: #fff; border-color: var(--c-success); }
.tech-check.d { background: var(--c-warn); color: #fff; border-color: var(--c-warn); }
.tech-check.x { background: var(--c-danger); color: #fff; border-color: var(--c-danger); }

/* 検索結果0件 */
.empty {
  background: var(--c-bg-white);
  border-radius: 14px;
  padding: 40px 20px;
  text-align: center;
  color: var(--c-text-mute);
  font-size: 13px;
  line-height: 1.8;
  letter-spacing: 0.08em;
}

/* メタカード */
.meta-card {
  background: var(--c-accent-soft);
  padding: 16px 18px;
  margin-top: 20px;
  border-radius: 12px;
  font-size: 11px;
  color: var(--c-accent-deep);
}
.meta-title {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.24em;
  margin-bottom: 6px;
  color: var(--c-accent);
}
.meta-stats {
  font-family: var(--font-en);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
}
.meta-note {
  color: var(--c-text-sub);
  margin-top: 6px;
  line-height: 1.7;
  font-size: 11px;
  letter-spacing: 0.04em;
}

/* === FAB === */
.fab {
  position: absolute;
  right: 20px;
  bottom: calc(var(--tabbar-h) + var(--safe-bottom) + 16px);
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--c-accent) 0%, #2eb8ca 100%);
  color: #fff;
  border: none;
  box-shadow: var(--c-shadow-fab);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 30;
  transition: transform 0.15s, box-shadow 0.15s;
}
.fab:hover { transform: scale(1.06); }
.fab:active { transform: scale(0.95); }
.fab.hidden { display: none; }

/* === ボトムタブ === */
.tabbar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: calc(var(--tabbar-h) + var(--safe-bottom));
  padding-bottom: var(--safe-bottom);
  background: var(--c-bg-white);
  border-top: 1px solid var(--c-border-soft);
  box-shadow: var(--c-shadow-tab);
  display: flex;
  align-items: stretch;
  z-index: 20;
}
.tab {
  flex: 1;
  background: none;
  border: none;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: var(--c-text-mute);
  font-family: var(--font-jp);
  font-size: 10px;
  letter-spacing: 0.12em;
  cursor: pointer;
  padding: 6px 0;
  transition: color 0.15s;
}
.tab svg { transition: transform 0.15s; }
.tab:active svg { transform: scale(0.9); }
.tab.active {
  color: var(--c-accent);
}
.tab.active::before {
  content: '';
  position: absolute;
  top: 0;
  width: 32px;
  height: 2px;
  background: var(--c-accent);
  border-radius: 0 0 2px 2px;
}
.tab span { font-weight: 500; }

/* === シート / モーダル === */
.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.modal.hidden { display: none; }
.modal-bg {
  position: absolute;
  inset: 0;
  background: rgba(10, 30, 40, 0.45);
  backdrop-filter: blur(4px);
  animation: bgIn 0.2s;
}
@keyframes bgIn { from { opacity: 0; } to { opacity: 1; } }
.sheet {
  position: relative;
  background: var(--c-bg-white);
  width: 100%;
  max-width: 480px;
  max-height: 92vh;
  border-radius: 24px 24px 0 0;
  animation: sheetUp 0.3s cubic-bezier(0.32, 0.72, 0, 1);
  display: flex;
  flex-direction: column;
}
@keyframes sheetUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}
.sheet-handle {
  width: 36px;
  height: 4px;
  background: var(--c-border);
  border-radius: 2px;
  margin: 8px auto 0;
  flex-shrink: 0;
}
.sheet-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: var(--c-border-soft);
  border: none;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  font-size: 18px;
  cursor: pointer;
  color: var(--c-text-sub);
  font-family: var(--font-en);
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}
.sheet-close:hover { background: var(--c-border); color: var(--c-text); }
.sheet-body {
  padding: 24px 24px calc(32px + var(--safe-bottom));
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  flex: 1;
}
.sheet-title {
  font-family: var(--font-jp);
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 24px;
  color: var(--c-text);
  letter-spacing: 0.1em;
}

/* 技詳細 */
.dt-head {
  margin-bottom: 20px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--c-border-soft);
}
.dt-kyu-label {
  display: inline-block;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.24em;
  color: var(--c-accent);
  background: var(--c-accent-soft);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 8px;
  text-transform: uppercase;
}
.dt-name {
  font-size: 24px;
  font-weight: 500;
  color: var(--c-text);
  margin: 0;
  letter-spacing: 0.06em;
  line-height: 1.4;
}
.dt-romaji {
  font-family: var(--font-en);
  font-size: 12px;
  color: var(--c-text-mute);
  letter-spacing: 0.2em;
  margin-top: 4px;
  font-style: italic;
}
.dt-badges { display: flex; gap: 4px; margin-top: 10px; flex-wrap: wrap; }
.dt-section { margin: 20px 0; }
.dt-section-title {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.28em;
  color: var(--c-text-mute);
  margin-bottom: 10px;
  text-transform: uppercase;
}
.dt-video {
  position: relative;
  padding-bottom: 56.25%;
  height: 0;
  background: var(--c-border-soft);
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 8px;
}
.dt-video iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.dt-video-link {
  display: block;
  padding: 12px 16px;
  background: var(--c-bg);
  border-radius: 10px;
  color: var(--c-accent-dark);
  text-decoration: none;
  font-size: 13px;
  margin-bottom: 8px;
  border: 1px solid var(--c-border-soft);
}
.dt-video-status {
  padding: 14px 16px;
  background: var(--c-bg);
  border-radius: 12px;
  color: var(--c-text-sub);
  font-size: 12px;
  letter-spacing: 0.06em;
  text-align: center;
  border: 1px dashed var(--c-border);
  margin-bottom: 12px;
}
.dt-video-status strong { color: var(--c-warn); }
.yt-search-block {
  background: var(--c-bg-white);
  border: 1px solid var(--c-border-soft);
  border-radius: 12px;
  padding: 14px;
}
.yt-search-label {
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 600;
  color: var(--c-text-mute);
  letter-spacing: 0.24em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.yt-search-row { display: flex; flex-direction: column; gap: 6px; }
.yt-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: 10px;
  color: var(--c-text);
  text-decoration: none;
  font-family: var(--font-jp);
  font-size: 13px;
  letter-spacing: 0.06em;
  transition: all 0.15s;
}
.yt-btn:hover {
  background: var(--c-accent-soft);
  border-color: var(--c-accent);
  color: var(--c-accent-dark);
}
.yt-btn:active { transform: scale(0.98); }
.yt-btn-mark {
  color: #c00;
  font-size: 14px;
  width: 22px;
  text-align: center;
  flex-shrink: 0;
}
.yt-btn-primary {
  background: var(--c-accent-soft);
  border-color: var(--c-accent);
  color: var(--c-accent-deep);
  font-weight: 700;
}
.yt-btn-primary:hover { background: var(--c-accent); color: #fff; }
.yt-btn-primary:hover .yt-btn-mark { color: #fff; }
.dt-check-row { display: flex; gap: 8px; }
.check-btn {
  flex: 1;
  background: var(--c-bg-white);
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  color: var(--c-text-sub);
  font-family: var(--font-jp);
  letter-spacing: 0.08em;
  transition: all 0.15s;
}
.check-btn:active { transform: scale(0.97); }
.check-btn.active.o { background: var(--c-success); color: #fff; border-color: var(--c-success); }
.check-btn.active.d { background: var(--c-warn); color: #fff; border-color: var(--c-warn); }
.check-btn.active.x { background: var(--c-danger); color: #fff; border-color: var(--c-danger); }

.dt-memo {
  width: 100%;
  min-height: 100px;
  border: 1px solid var(--c-border);
  border-radius: 12px;
  padding: 14px;
  font-family: var(--font-jp);
  font-size: 14px;
  color: var(--c-text);
  resize: vertical;
  line-height: 1.8;
  background: var(--c-bg-white);
  letter-spacing: 0.04em;
}
.dt-memo:focus { outline: none; border-color: var(--c-accent); }
.dt-memo-hint {
  font-size: 11px;
  color: var(--c-text-mute);
  margin-top: 6px;
  letter-spacing: 0.06em;
}

/* 関連稽古日誌 (技詳細内) */
.related-sessions-list { display: flex; flex-direction: column; gap: 8px; }
.related-session-item {
  background: var(--c-bg);
  border-left: 3px solid var(--c-accent);
  border-radius: 0 10px 10px 0;
  padding: 12px 14px;
  cursor: pointer;
  transition: background-color 0.15s;
}
.related-session-item:hover { background: var(--c-accent-soft); }
.rsi-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 11px;
}
.rsi-date {
  font-family: var(--font-en);
  font-weight: 500;
  color: var(--c-accent-dark);
  letter-spacing: 0.08em;
}
.rsi-dojo {
  color: var(--c-text-sub);
  letter-spacing: 0.06em;
}
.rsi-memo {
  font-size: 13px;
  color: var(--c-text);
  margin-top: 6px;
  line-height: 1.7;
  letter-spacing: 0.04em;
  white-space: pre-wrap;
}
.rsi-empty {
  font-size: 12px;
  color: var(--c-text-mute);
  text-align: center;
  padding: 20px;
  border-radius: 10px;
  background: var(--c-bg);
  border: 1px dashed var(--c-border);
  letter-spacing: 0.06em;
  line-height: 1.8;
}

/* === セッション編集フォーム === */
.field { display: block; margin-bottom: 18px; }
.field-label {
  display: block;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 600;
  color: var(--c-text-mute);
  margin-bottom: 6px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}
.field select, .field input[type="text"], .field input[type="date"] {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  font-size: 15px;
  font-family: var(--font-jp);
  background: var(--c-bg-white);
  color: var(--c-text);
  letter-spacing: 0.04em;
}
.field select:focus, .field input:focus { outline: none; border-color: var(--c-accent); }

/* 技選択チップ */
.tech-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
  min-height: 32px;
  padding: 6px 0;
}
.tech-chip {
  background: var(--c-accent);
  color: #fff;
  padding: 5px 6px 5px 12px;
  font-size: 12px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  letter-spacing: 0.04em;
  border-radius: 999px;
  font-weight: 500;
}
.tech-chip-x {
  background: rgba(255, 255, 255, 0.25);
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 14px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  font-family: var(--font-en);
}
.tech-chip-x:hover { background: rgba(255, 255, 255, 0.4); }

.tech-picker { position: relative; }
#ses-tech-search {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  font-size: 14px;
  font-family: var(--font-jp);
  background: var(--c-bg-white);
  color: var(--c-text);
}
#ses-tech-search:focus { outline: none; border-color: var(--c-accent); }
.tech-results {
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  max-height: 240px;
  overflow-y: auto;
  background: var(--c-bg-white);
  border: 1px solid var(--c-accent);
  border-top: none;
  border-radius: 0 0 10px 10px;
  z-index: 10;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}
.tech-results.hidden { display: none; }
.tech-result-item {
  padding: 10px 14px;
  border-bottom: 1px solid var(--c-border-soft);
  cursor: pointer;
  font-size: 13px;
  color: var(--c-text);
  letter-spacing: 0.04em;
}
.tech-result-item:hover { background: var(--c-accent-soft); }
.tech-result-meta {
  font-size: 10px;
  color: var(--c-text-mute);
  margin-left: 8px;
  font-family: var(--font-en);
  letter-spacing: 0.1em;
}
.tech-result-empty { padding: 16px; text-align: center; color: var(--c-text-mute); font-size: 12px; }

.session-actions {
  display: flex;
  gap: 8px;
  margin-top: 24px;
}
.session-actions .primary-btn { flex: 1; margin-top: 0; }
.primary-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--c-accent) 0%, #2eb8ca 100%);
  color: #fff;
  border: none;
  border-radius: 12px;
  padding: 16px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.18em;
  cursor: pointer;
  font-family: var(--font-jp);
  margin-top: 12px;
  box-shadow: 0 4px 12px rgba(26, 154, 171, 0.25);
  transition: transform 0.1s, box-shadow 0.15s;
}
.primary-btn:hover { box-shadow: 0 6px 16px rgba(26, 154, 171, 0.35); }
.primary-btn:active { transform: scale(0.98); }
.danger-btn {
  background: var(--c-bg-white);
  color: var(--c-danger);
  border: 1px solid var(--c-danger);
  border-radius: 12px;
  padding: 16px 20px;
  font-family: var(--font-jp);
  font-size: 13px;
  letter-spacing: 0.16em;
  cursor: pointer;
  font-weight: 500;
}
.danger-btn.hidden { display: none; }
.danger-btn:hover { background: var(--c-danger); color: #fff; }