/* ===========================
   TimeBell - スタイルシート
   =========================== */

:root {
  --color-primary: #4f46e5;
  --color-primary-dark: #4338ca;
  --color-secondary: #64748b;
  --color-success: #22c55e;
  --color-danger: #ef4444;
  --color-warning: #f59e0b;
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-border: #e2e8f0;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

/* コンテナ */
.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 16px;
}

/* ===========================
   ヘッダー
   =========================== */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 24px;
}

.header__title {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
}

.header__status {
  display: flex;
  align-items: center;
  gap: 16px;
}

.current-time {
  font-size: 32px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.chime-status {
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}

.chime-status--enabled {
  background-color: #dcfce7;
  color: #166534;
}

.chime-status--disabled {
  background-color: #fee2e2;
  color: #991b1b;
}

/* ===========================
   有効化バナー
   =========================== */
.enable-banner {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: white;
  padding: 20px;
  border-radius: var(--radius);
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.enable-banner p {
  font-weight: 500;
}

.enable-banner.hidden {
  display: none;
}

/* ===========================
   ボタン
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

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

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

.btn--secondary {
  background-color: var(--color-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn--secondary:hover {
  background-color: var(--color-bg);
}

.btn--small {
  padding: 6px 12px;
  font-size: 12px;
}

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

.btn-group {
  display: flex;
  gap: 8px;
}

/* ===========================
   セクション
   =========================== */
.section-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.today-schedule {
  margin-bottom: 32px;
}

/* ===========================
   今日の時間割
   =========================== */
.timetable-today {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.period-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.period-card--current {
  border-left: 4px solid var(--color-primary);
  background-color: #eef2ff;
}

.period-card--past {
  opacity: 0.5;
}

.period-card__time {
  min-width: 100px;
  text-align: center;
}

.period-card__time-start {
  font-size: 20px;
  font-weight: 700;
}

.period-card__time-end {
  font-size: 12px;
  color: var(--color-text-muted);
}

.period-card__info {
  flex: 1;
}

.period-card__name {
  font-size: 12px;
  color: var(--color-text-muted);
}

.period-card__subject {
  font-size: 18px;
  font-weight: 600;
}

.period-card__status {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* ===========================
   週間時間割
   =========================== */
.timetable-weekly {
  overflow-x: auto;
}

.timetable-grid {
  display: grid;
  grid-template-columns: 80px repeat(7, 1fr);
  gap: 2px;
  background-color: var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  min-width: 600px;
}

.timetable-cell {
  background-color: var(--color-surface);
  padding: 8px;
  text-align: center;
  font-size: 13px;
}

.timetable-cell--header {
  background-color: var(--color-bg);
  font-weight: 600;
  color: var(--color-text-muted);
}

.timetable-cell--time {
  background-color: var(--color-bg);
  font-size: 11px;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.timetable-cell--today {
  background-color: #eef2ff;
}

.timetable-cell--subject {
  min-height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===========================
   設定ボタン
   =========================== */
.settings-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: all 0.2s;
}

.settings-btn:hover {
  background-color: var(--color-bg);
  transform: scale(1.05);
}

/* ===========================
   モーダル
   =========================== */
.modal {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 1000;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.modal.active {
  display: flex;
}

.modal__content {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  width: 100%;
  max-width: 700px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
}

.modal__content--small {
  max-width: 400px;
}

.modal__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
}

.modal__header h2 {
  font-size: 18px;
}

.modal__close {
  background: none;
  border: none;
  font-size: 24px;
  cursor: pointer;
  color: var(--color-text-muted);
}

.modal__body {
  padding: 20px;
}

.modal__footer {
  display: flex;
  justify-content: flex-end;
  gap: 8px;
  padding: 16px 20px;
  border-top: 1px solid var(--color-border);
}

/* ===========================
   編集セクション
   =========================== */
.edit-section {
  margin-bottom: 24px;
}

.edit-section h3 {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text-muted);
}

/* 時限エディタ */
.periods-editor {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.period-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px;
  background-color: var(--color-bg);
  border-radius: var(--radius);
}

.period-row input[type="text"] {
  width: 80px;
}

.period-row input[type="time"] {
  width: 100px;
}

.period-row .btn--danger {
  padding: 4px 8px;
  font-size: 12px;
}

/* 曜日タブ */
.day-tabs {
  display: flex;
  gap: 4px;
  margin-bottom: 16px;
}

.day-tab {
  flex: 1;
  padding: 8px;
  border: 1px solid var(--color-border);
  background-color: var(--color-surface);
  border-radius: var(--radius);
  cursor: pointer;
  font-weight: 500;
  transition: all 0.2s;
}

.day-tab:hover {
  background-color: var(--color-bg);
}

.day-tab.active {
  background-color: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}

/* スケジュールエディタ */
.schedule-editor {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.schedule-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px;
  background-color: var(--color-bg);
  border-radius: var(--radius);
}

.schedule-row__period {
  min-width: 100px;
  font-size: 12px;
  color: var(--color-text-muted);
}

.schedule-row input[type="text"] {
  flex: 1;
}

/* フォーム要素 */
input[type="text"],
input[type="time"],
select {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
}

input[type="text"]:focus,
input[type="time"]:focus,
select:focus {
  outline: none;
  border-color: var(--color-primary);
}

/* 設定項目 */
.setting-item {
  margin-bottom: 16px;
}

.setting-item label {
  display: block;
  margin-bottom: 4px;
  font-weight: 500;
}

.setting-item select,
.setting-item input[type="range"] {
  width: 100%;
}

.setting-item input[type="checkbox"] {
  margin-right: 8px;
}

hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 20px 0;
}

/* ===========================
   空状態
   =========================== */
.empty-state {
  text-align: center;
  padding: 40px;
  color: var(--color-text-muted);
}

/* ===========================
   レスポンシブ
   =========================== */
@media (max-width: 600px) {
  .header {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .current-time {
    font-size: 24px;
  }

  .enable-banner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .period-card {
    flex-wrap: wrap;
  }

  .period-card__time {
    min-width: auto;
  }

  .period-row {
    flex-wrap: wrap;
  }

  .settings-btn {
    bottom: 16px;
    right: 16px;
    width: 48px;
    height: 48px;
  }
}