/* === 基礎變數：70歲長輩友善設計 === */
:root {
  --primary: #2E5C8A;
  --primary-dark: #1B3A52;
  --success: #27AE60;
  --warning: #F2994A;
  --danger: #EB5757;
  --bg: #FFFFFF;
  --card-bg: #FFFFFF;
  --text: #1A1A1A;
  --text-light: #555555;
  --border: #CCCCCC;
  --radius: 16px;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --font-size-base: 24px;
  --font-size-lg: 32px;
  --font-size-xl: 48px;
  --font-size-xxl: 64px;
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft JhengHei", sans-serif;
  font-size: var(--font-size-base);
  color: var(--text);
  background: var(--bg);
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior: none;
}

#app {
  max-width: 100vw;
  overflow-x: hidden;
}

/* === 頁面切換 === */
.page { display: none; min-height: 100dvh; padding-bottom: 80px; }
.page.active { display: block; }

/* === 登入頁 === */
.login-container {
  max-width: 400px;
  margin: 0 auto;
  padding: 40px 20px;
  text-align: center;
}
.login-title { font-size: var(--font-size-xxl); margin-bottom: 60px; font-weight: 700; }
.login-section { margin-top: 32px; }
.login-section h2 { font-size: var(--font-size-xl); margin-bottom: 32px; font-weight: 700; }

/* === 通用元件 === */
.hidden { display: none !important; }

.field-label {
  display: block;
  text-align: left;
  font-size: 22px;
  color: var(--text-light);
  margin: 24px 0 12px;
  font-weight: 600;
}

.input-xl {
  width: 100%;
  padding: 16px 20px;
  font-size: var(--font-size-base);
  border: 3px solid var(--border);
  border-radius: 12px;
  outline: none;
  transition: border-color 0.2s, background-color 0.2s;
}
.input-xl:focus {
  border-color: var(--primary);
  background-color: #F0F6FF;
}

textarea.input-xl { resize: vertical; font-family: inherit; }

/* === 按鈕 === */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  border-radius: 12px;
  font-size: var(--font-size-base);
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
  cursor: pointer;
  transition: all 0.2s;
  -webkit-user-select: none;
  user-select: none;
}
.btn-xl {
  width: 100%;
  padding: 18px 32px;
  font-size: var(--font-size-lg);
  margin-top: 16px;
  min-height: 60px;
}
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:active { background: var(--primary-dark); transform: scale(0.98); box-shadow: inset 0 2px 4px rgba(0,0,0,0.2); }
.btn-secondary { background: #E8E8E8; color: var(--text); }
.btn-secondary:active { background: #D0D0D0; transform: scale(0.98); }
.btn-danger { background: var(--danger); color: #fff; }
.btn-danger:active { background: #d04848; }

.btn-link {
  display: block;
  background: none;
  border: none;
  color: var(--primary);
  font-size: 20px;
  cursor: pointer;
  margin-top: 16px;
  text-decoration: underline;
}

.btn-icon {
  background: none;
  border: none;
  font-size: 36px;
  min-width: 60px;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  padding: 4px 8px;
  line-height: 1;
}

/* === 角色選擇 === */
.role-select { display: flex; gap: 8px; margin-top: 4px; }
.btn-role {
  flex: 1;
  padding: 12px;
  font-size: 18px;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}
.btn-role.active { border-color: var(--primary); background: #EBF3FC; color: var(--primary); }

/* === 家庭代碼輸入 === */
/* === 性別選擇 === */
.gender-select { display: flex; gap: 8px; margin-top: 4px; }
.btn-gender {
  flex: 1;
  padding: 14px;
  font-size: var(--font-size-lg);
  border: 2px solid var(--border);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.2s;
}
.btn-gender.active { border-color: var(--primary); background: #EBF3FC; color: var(--primary); }

.code-input-row { display: flex; gap: 4px; align-items: center; }
.code-prefix { flex: 1; background: #F5F7FA; color: var(--text-light); text-align: center; }
.code-num { width: 120px; text-align: center; font-weight: 700; letter-spacing: 4px; }
.code-preview {
  text-align: center;
  font-size: 18px;
  color: var(--primary);
  font-weight: 700;
  margin: 8px 0;
}
.code-preview.error { color: var(--danger); }

/* === PIN 碼 === */
.pin-display {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin: 24px 0;
}
.pin-dot {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 3px solid var(--border);
  transition: all 0.2s;
}
.pin-dot.filled { background: var(--primary); border-color: var(--primary); }

/* === 數字鍵盤 === */
.numpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  max-width: 100%;
  margin: 24px auto;
  box-sizing: border-box;
}
.numpad-btn {
  padding: 20px;
  font-size: 32px;
  font-weight: 700;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  transition: all 0.15s;
  -webkit-user-select: none;
  user-select: none;
  min-height: 70px;
}
.numpad-btn:active { background: #EBF3FC; border-color: var(--primary); transform: scale(0.95); box-shadow: inset 0 2px 4px rgba(0,0,0,0.1); }
.numpad-btn.del { font-size: 28px; color: var(--danger); font-weight: 600; }

/* === App Header === */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}
.app-header h1 { font-size: var(--font-size-lg); flex: 1; text-align: center; }

.today-date {
  text-align: center;
  padding: 12px;
  font-size: 18px;
  color: var(--text-light);
}

/* === 首頁狀態卡片 === */
.status-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding: 0 12px;
}
.status-card {
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 10px;
  text-align: center;
  box-shadow: var(--shadow);
  cursor: pointer;
  transition: transform 0.2s;
  overflow: hidden;
  word-break: break-all;
}
.status-card:active { transform: scale(0.97); }
.card-wide { grid-column: 1 / -1; }
.status-icon { font-size: 32px; margin-bottom: 4px; }
.status-label { font-size: 16px; color: var(--text-light); margin-bottom: 4px; }
.status-value { font-size: 20px; font-weight: 700; }
.status-value.recorded { color: var(--success); }
.status-value.normal { color: var(--success); }
.status-value.warning { color: var(--warning); }
.status-value.alert { color: var(--danger); }

/* === 首頁提醒區 === */
#home-alerts, #home-reminder { padding: 0 16px; }
.alert-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius);
  margin-bottom: 12px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
}
.alert-banner.danger { background: #FFEBEE; color: var(--danger); border: 1px solid var(--danger); }
.alert-banner.warning { background: #FFF3E0; color: #C77700; border: 1px solid var(--warning); }
.alert-banner.info { background: #EBF3FC; color: var(--primary-dark); border: 1px solid var(--primary); }
.alert-banner .alert-icon { font-size: 24px; flex-shrink: 0; }

.reminder-box {
  background: #FFF9E6;
  border: 1px solid #F2C94C;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 12px;
}
.reminder-box h4 { font-size: 16px; color: #C77700; margin-bottom: 8px; }
.reminder-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.reminder-chip {
  background: #fff;
  border: 1px solid #F2C94C;
  border-radius: 16px;
  padding: 6px 14px;
  font-size: 15px;
  color: #C77700;
}

.home-history-btn { margin: 16px; width: calc(100% - 32px); }

/* === 歷史紀錄頁 === */
.history-list { padding: 16px; }
.history-day {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 12px;
}
.history-date {
  font-size: var(--font-size-base);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 10px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border);
}
.history-row { font-size: 16px; line-height: 1.8; }
.history-row .h-label { color: var(--text-light); display: inline-block; min-width: 52px; }
.history-empty { text-align: center; color: var(--text-light); padding: 40px; font-size: 18px; }

/* === 底部導航 === */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  padding: 6px 0;
  padding-bottom: max(6px, env(safe-area-inset-bottom));
  z-index: 100;
}
.nav-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 6px 0;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--text-light);
  cursor: pointer;
  transition: color 0.2s;
}
.nav-btn span { font-size: 12px; }
.nav-btn.active { color: var(--primary); }

/* === 健康數據頁 === */
.health-tabs, .trend-tabs {
  display: flex;
  gap: 4px;
  padding: 12px 16px;
  background: var(--card-bg);
}
.tab-btn {
  flex: 1;
  padding: 10px;
  font-size: 18px;
  font-weight: 600;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: var(--text-light);
  cursor: pointer;
  transition: all 0.2s;
}
.tab-btn.active { background: var(--primary); color: #fff; }

.health-panel { display: none; padding: 16px; }
.health-panel.active { display: block; }

.input-health {
  width: 100%;
  padding: 20px;
  font-size: var(--font-size-xxl);
  font-weight: 700;
  text-align: center;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: #fff;
  color: var(--text);
}
.input-health:focus { border-color: var(--primary); outline: none; }

.health-numpad {
  max-width: 360px;
}
.health-numpad .numpad-btn {
  padding: 14px;
  font-size: var(--font-size-lg);
  min-height: 54px;
}

.health-status {
  text-align: center;
  padding: 12px;
  font-size: var(--font-size-lg);
  font-weight: 700;
  border-radius: 12px;
  margin: 12px 0;
}
.health-status.normal { background: #E8F5E9; color: var(--success); }
.health-status.warning { background: #FFF3E0; color: var(--warning); }
.health-status.alert { background: #FFEBEE; color: var(--danger); }

/* === 血壓 722 === */
.bp-period-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
}
.bp-period-btn {
  flex: 1;
  padding: 12px;
  font-size: var(--font-size-base);
  font-weight: 600;
  border: 2px solid var(--border);
  border-radius: 12px;
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
}
.bp-period-btn.active { border-color: var(--primary); background: #EBF3FC; color: var(--primary); }
.bp-hint { text-align: center; font-size: 16px; color: var(--text-light); margin-bottom: 12px; }
.bp-round { margin-bottom: 12px; }
.bp-round h3 { font-size: 18px; color: var(--text-light); margin-bottom: 4px; }
.bp-average {
  text-align: center;
  padding: 12px;
  font-size: var(--font-size-lg);
  font-weight: 700;
  background: #EBF3FC;
  border-radius: 12px;
  margin: 8px 0;
}

/* === 血糖 7 時段 === */
.sugar-slots {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 8px;
}
.sugar-slot-btn {
  padding: 8px 12px;
  font-size: 16px;
  font-weight: 600;
  border: 2px solid var(--border);
  border-radius: 20px;
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
}
.sugar-slot-btn.active { border-color: var(--warning); background: #FFF3E0; color: var(--warning); }
.sugar-slot-btn.recorded { border-color: var(--success); background: #E8F5E9; color: var(--success); }
.sugar-slot-hint {
  text-align: center;
  font-size: 16px;
  color: var(--text-light);
  font-style: italic;
  margin-bottom: 8px;
}
.sugar-today-summary {
  margin-top: 16px;
  padding: 12px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-size: 16px;
  line-height: 1.8;
}

/* === 用藥頁 === */
.med-cards {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 20px 16px;
}
.med-card {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--card-bg);
  border: 3px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
  cursor: pointer;
  transition: all 0.2s;
  width: 100%;
  text-align: left;
  font-size: var(--font-size-lg);
}
.med-card.taken {
  border-color: var(--success);
  background: #E8F5E9;
}
.med-card:active { transform: scale(0.98); }
.med-icon { font-size: 36px; }
.med-label { flex: 1; font-weight: 600; }
.med-check { font-size: 36px; }
.med-card.taken .med-check { color: var(--success); }

/* === 症狀頁 === */
.symptom-quick { padding: 16px; }
.symptom-quick h3 { font-size: 18px; color: var(--text-light); margin-bottom: 12px; }
.symptom-tags { display: flex; flex-wrap: wrap; gap: 10px; }
.symptom-tag {
  padding: 12px 20px;
  font-size: var(--font-size-base);
  font-weight: 600;
  border: 2px solid var(--border);
  border-radius: 30px;
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
}
.symptom-tag.selected {
  border-color: var(--warning);
  background: #FFF3E0;
  color: var(--warning);
}
.symptom-tag:active { transform: scale(0.95); }

.symptom-free { padding: 0 16px 16px; }

/* === 趨勢圖頁 === */
.trend-period {
  display: flex;
  gap: 8px;
  padding: 0 16px 12px;
  justify-content: center;
}
.period-btn {
  padding: 8px 20px;
  font-size: 16px;
  font-weight: 600;
  border: 2px solid var(--border);
  border-radius: 20px;
  background: #fff;
  cursor: pointer;
  transition: all 0.2s;
}
.period-btn.active { border-color: var(--primary); background: #EBF3FC; color: var(--primary); }

.trend-sugar-slot { padding: 0 16px 8px; }
.trend-sugar-slot select { padding: 12px; }

.chart-container {
  padding: 8px 12px;
  height: 380px;
}
.chart-container canvas { width: 100% !important; height: 100% !important; }

.trend-summary {
  padding: 20px;
  margin: 12px 16px;
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  font-size: var(--font-size-base);
  line-height: 1.8;
}
.trend-summary strong { font-size: var(--font-size-lg); }

/* === 設定頁 === */
.settings-list { padding: 16px; }
.settings-section {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow);
}
.settings-section h3 { font-size: var(--font-size-lg); margin-bottom: 12px; }
.form-subtitle { font-size: 18px; color: var(--text-light); margin: 20px 0 8px; padding-top: 16px; border-top: 1px solid var(--border); }
.admin-only.hidden-role { display: none !important; }
.settings-info { font-size: 18px; color: var(--text-light); margin: 8px 0; }
.settings-info strong { color: var(--text); }

.elder-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  font-size: var(--font-size-base);
}
.elder-item:last-child { border-bottom: none; }
.elder-item.active-elder { color: var(--primary); font-weight: 700; }

.btn-delete-member {
  padding: 6px 14px;
  font-size: 16px;
  border: 1px solid var(--danger);
  border-radius: 8px;
  background: #fff;
  color: var(--danger);
  cursor: pointer;
  font-weight: 600;
}
.btn-delete-member:active { background: #FFEBEE; }

.elder-btns { display: flex; gap: 6px; flex-shrink: 0; }
.btn-edit-clinic {
  padding: 6px 12px;
  font-size: 15px;
  border: 1px solid var(--primary);
  border-radius: 8px;
  background: #fff;
  color: var(--primary);
  cursor: pointer;
  font-weight: 600;
}
.btn-edit-clinic:active { background: #EBF3FC; }
.elder-clinic { color: var(--primary); font-size: 15px; }

.badge-self {
  font-size: 14px;
  background: #EBF3FC;
  color: var(--primary);
  padding: 4px 10px;
  border-radius: 12px;
  font-weight: 600;
}

/* === Toast === */
.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%);
  background: #333;
  color: #fff;
  padding: 14px 28px;
  border-radius: 30px;
  font-size: 18px;
  z-index: 1000;
  opacity: 0;
  transition: opacity 0.3s;
  white-space: nowrap;
}
.toast.show { opacity: 1; }

/* === Loading === */
.loading {
  position: fixed;
  inset: 0;
  background: rgba(255,255,255,0.7);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 999;
}
.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* === 提示問題 === */
/* === 衛教頁 === */
.edu-content { padding: 16px; }
.edu-card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 2px solid var(--border);
  margin-bottom: 16px;
  overflow: hidden;
}
.edu-title {
  padding: 16px 20px;
  font-size: var(--font-size-lg);
  font-weight: 700;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
}
.edu-title::-webkit-details-marker { display: none; }
.edu-card[open] { border-color: var(--primary); }
.edu-card[open] .edu-title { border-bottom: 2px solid var(--border); background: #F0F6FF; }
.edu-body {
  padding: 16px 20px;
  font-size: 17px;
  line-height: 1.8;
}
.edu-body h4 { font-size: 18px; margin: 16px 0 8px; }
.edu-body h4:first-child { margin-top: 0; }
.edu-body ul { padding-left: 20px; margin: 8px 0; }
.edu-body li { margin-bottom: 8px; }
.edu-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 16px;
}
.edu-table th, .edu-table td {
  border: 1px solid var(--border);
  padding: 8px 12px;
  text-align: center;
}
.edu-table th { background: #F5F7FA; font-weight: 600; }
.edu-unit { font-size: 14px; color: var(--text-light); text-align: right; }
.edu-links { list-style: none; padding: 0; }
.edu-links li { margin-bottom: 16px; }
.edu-links a {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--primary);
  text-decoration: none;
}
.edu-links a:hover { text-decoration: underline; }
.edu-link-desc { font-size: 15px; color: var(--text-light); }

.symptom-purpose {
  background: #EBF5FF;
  border: 2px solid var(--primary);
  border-radius: 12px;
  padding: 16px;
  margin: 16px 20px;
  font-size: 20px;
  line-height: 1.6;
}

.hint-question {
  background: #FFF9E6;
  border: 2px solid #F2994A;
  border-radius: 12px;
  padding: 16px;
  font-size: var(--font-size-base);
  font-weight: 600;
  margin: 16px 0;
  text-align: left;
}

/* === Modal 輸入對話框（70歲長輩友善） === */
.input-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.6);
  display: none;
  align-items: flex-end;
  z-index: 1000;
}
.input-modal.show { display: flex !important; }

.input-modal-content {
  width: 100%;
  max-width: 420px;
  margin: 0 auto;
  background: var(--bg);
  border-radius: 20px 20px 0 0;
  padding: 12px 12px calc(12px + env(safe-area-inset-bottom));
  max-height: 80vh;
  animation: slideUp 0.3s ease;
  box-sizing: border-box;
}

@keyframes slideUp {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

.input-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 4px;
}

.input-modal-header h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 0;
}

.input-modal-body {
  text-align: center;
  margin-bottom: 4px;
}

.input-modal-label {
  font-size: 18px;
  color: var(--text-light);
  margin-bottom: 0;
  font-weight: 600;
}

.input-modal-value {
  font-size: 40px;
  font-weight: 700;
  color: var(--primary);
  margin: 2px 0;
  font-family: 'Courier New', monospace;
}

.input-modal-numpad {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  margin: 4px 0;
}

.input-modal-numpad .numpad-btn {
  padding: 8px;
  min-height: 44px;
  font-size: 22px;
}

.input-modal-footer {
  display: flex;
  gap: 10px;
  margin-top: 6px;
}

.input-modal-footer .btn-xl {
  margin-top: 0;
  padding: 10px 16px;
  min-height: 44px;
  font-size: 20px;
}

.input-modal-footer .btn {
  flex: 1;
}

/* === 健康輸入按鈕（點擊打開 Modal） === */
.input-health-btn {
  width: 100%;
  padding: 16px 20px;
  font-size: var(--font-size-base);
  border: 3px solid var(--border);
  border-radius: 12px;
  outline: none;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
  text-align: center;
  font-weight: 600;
}
.input-health-btn:active {
  border-color: var(--primary);
  background-color: #F0F6FF;
}
.input-health-btn.has-value {
  border-color: var(--success);
  background: #F0FFF4;
  color: var(--success);
  font-size: 28px;
}
.input-health-btn.has-value::after {
  content: ' ✏️';
  font-size: 16px;
}