/* MealCare Phase 3 - Step 0
   Shared foundation styles for today.html + history.html
   Scope rule:
   - only include components already confirmed in current layouts
   - keep variants minimal
*/

:root {
  --mc-bg: #f7f8fb;
  --mc-surface: #ffffff;
  --mc-surface-soft: #f2f4f8;
  --mc-border: #d9e0ea;
  --mc-border-strong: #b8c4d6;
  --mc-text: #243043;
  --mc-text-muted: #617085;
  --mc-primary: #2f6fed;
  --mc-primary-soft: #eaf1ff;
  --mc-success: #2a9d65;
  --mc-warning: #d98a00;
  --mc-danger: #d64545;
  --mc-shadow: 0 8px 24px rgba(36, 48, 67, 0.08);

  --mc-radius-sm: 10px;
  --mc-radius-md: 14px;
  --mc-radius-lg: 18px;

  --mc-space-1: 4px;
  --mc-space-2: 8px;
  --mc-space-3: 12px;
  --mc-space-4: 16px;
  --mc-space-5: 20px;
  --mc-space-6: 24px;
  --mc-space-7: 32px;

  --mc-font-xs: 12px;
  --mc-font-sm: 14px;
  --mc-font-md: 16px;
  --mc-font-lg: 18px;
  --mc-font-xl: 22px;

  --mc-bottom-nav-height: 76px;
  --mc-page-max: 960px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--mc-bg);
  color: var(--mc-text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang TC",
    "Noto Sans TC", "Microsoft JhengHei", sans-serif;
  line-height: 1.5;
}

img {
  display: block;
  max-width: 100%;
  border-radius: var(--mc-radius-md);
}

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

button {
  cursor: pointer;
  border: 0;
  background: none;
  color: inherit;
}

a {
  color: inherit;
  text-decoration: none;
}

.page-shell {
  width: 100%;
  min-height: 100vh;
}

.page-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(247, 248, 251, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(217, 224, 234, 0.9);
}

.page-header__inner,
.page-main,
.bottom-nav__inner {
  width: min(100%, var(--mc-page-max));
  margin: 0 auto;
}

.page-header__inner {
  padding: var(--mc-space-4) var(--mc-space-4) var(--mc-space-3);
}

.page-title {
  margin: 0;
  font-size: var(--mc-font-xl);
  font-weight: 700;
}

.page-subtitle {
  margin: var(--mc-space-1) 0 0;
  color: var(--mc-text-muted);
  font-size: var(--mc-font-sm);
}

.page-main {
  padding: var(--mc-space-4);
  padding-bottom: calc(var(--mc-bottom-nav-height) + var(--mc-space-6));
}

.section-stack {
  display: grid;
  gap: var(--mc-space-4);
}

.section-card {
  background: var(--mc-surface);
  border: 1px solid var(--mc-border);
  border-radius: var(--mc-radius-lg);
  box-shadow: var(--mc-shadow);
  padding: var(--mc-space-4);
}

.section-card--soft {
  background: var(--mc-surface-soft);
}

.section-heading {
  margin: 0 0 var(--mc-space-3);
  font-size: var(--mc-font-lg);
  font-weight: 700;
}

.section-subheading {
  margin: 0 0 var(--mc-space-2);
  font-size: var(--mc-font-md);
  font-weight: 700;
}

.helper-text,
.inline-note {
  color: var(--mc-text-muted);
  font-size: var(--mc-font-sm);
}

.inline-note {
  display: inline-flex;
  gap: var(--mc-space-1);
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 var(--mc-space-4);
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: transform 0.15s ease, opacity 0.15s ease, background 0.15s ease;
}

.button:active {
  transform: translateY(1px);
}

.button--primary {
  background: var(--mc-primary);
  color: #fff;
}

.button--secondary {
  background: var(--mc-surface);
  color: var(--mc-primary);
  border-color: var(--mc-primary);
}

.button--ghost {
  background: transparent;
  color: var(--mc-text);
  border-color: var(--mc-border);
}

.button--disabled,
.button[disabled] {
  background: #cfd7e6;
  color: #fff;
  border-color: #cfd7e6;
  cursor: not-allowed;
  opacity: 0.75;
}

.bottom-nav {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-top: 1px solid var(--mc-border);
}

.bottom-nav__inner {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: var(--mc-space-1);
  padding: var(--mc-space-2) var(--mc-space-2) max(var(--mc-space-2), env(safe-area-inset-bottom));
}

.bottom-nav-item {
  min-height: 60px;
  padding: var(--mc-space-2);
  border-radius: var(--mc-radius-md);
  color: var(--mc-text-muted);
  text-align: center;
  font-size: var(--mc-font-xs);
  display: grid;
  place-items: center;
}

.bottom-nav-item--active {
  color: var(--mc-primary);
  background: var(--mc-primary-soft);
  font-weight: 700;
}

.upload-count-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--mc-space-3);
  padding: var(--mc-space-3) var(--mc-space-4);
  border-radius: var(--mc-radius-md);
  background: linear-gradient(135deg, #eef4ff, #f8fbff);
  border: 1px solid #d7e5ff;
}

.meal-expand-toggle {
  width: 100%;
}

.nutrition-progress-panel,
.stats-card-grid,
.meal-review-list,
.summary-metrics-bar,
.meal-list {
  display: grid;
  gap: var(--mc-space-3);
}

.nutrient-progress-item {
  display: grid;
  gap: var(--mc-space-2);
}

.progress-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--mc-space-3);
}

.progress-label,
.progress-value {
  font-size: var(--mc-font-sm);
}

.progress-label {
  font-weight: 600;
}

.progress-value {
  color: var(--mc-text-muted);
}

.progress-bar {
  width: 100%;
  height: 10px;
  overflow: hidden;
  background: #e8edf5;
  border-radius: 999px;
}

.progress-bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, #75a8ff, #2f6fed);
  border-radius: inherit;
}

.meal-review-card,
.day-report-card,
.meal-entry-card,
.stats-card,
.chart-card,
.day-query-panel,
.daily-summary-panel,
.summary-trigger-panel {
  border: 1px solid var(--mc-border);
  border-radius: var(--mc-radius-md);
  background: var(--mc-surface);
}

.meal-review-card,
.day-report-card,
.meal-entry-card,
.stats-card,
.day-query-panel,
.daily-summary-panel,
.summary-trigger-panel,
.chart-card {
  padding: var(--mc-space-4);
}

.meal-review-header,
.meal-entry-header,
.day-report-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--mc-space-3);
  margin-bottom: var(--mc-space-3);
}

.meal-review-title,
.meal-entry-title,
.day-report-title {
  margin: 0;
  font-size: var(--mc-font-md);
  font-weight: 700;
}

.badge,
.confidence-badge,
.fullness-badge,
.activity-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: var(--mc-font-xs);
  font-weight: 700;
  white-space: nowrap;
}

.confidence-badge--high {
  background: #eaf8f0;
  color: var(--mc-success);
}

.confidence-badge--mid-high {
  background: #fff6e7;
  color: var(--mc-warning);
}

.confidence-badge--mid {
  background: #fdeeee;
  color: var(--mc-danger);
}

.review-text-block,
.supplement-text,
.truncation-text {
  color: var(--mc-text);
  font-size: var(--mc-font-sm);
}

.summary-lock-text,
.status-text {
  font-size: var(--mc-font-sm);
  color: var(--mc-text-muted);
}

.status-text--good {
  color: var(--mc-success);
}

.status-text--warning {
  color: var(--mc-warning);
}

.status-text--neutral {
  color: var(--mc-text-muted);
}

.stats-card-grid {
  grid-template-columns: 1fr;
}

.stats-card-title {
  margin: 0 0 var(--mc-space-3);
  font-size: var(--mc-font-md);
  font-weight: 700;
}

.stat-row {
  display: flex;
  justify-content: space-between;
  gap: var(--mc-space-3);
  margin-top: var(--mc-space-2);
  font-size: var(--mc-font-sm);
}

.top-tab-switch,
.sub-tab-switch,
.pdf-mode-switch {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mc-space-2);
}

.tab-button,
.pdf-mode-button {
  min-height: 40px;
  padding: 0 var(--mc-space-4);
  border-radius: 999px;
  border: 1px solid var(--mc-border);
  background: var(--mc-surface);
  color: var(--mc-text-muted);
  font-weight: 600;
}

.tab-button--active,
.pdf-mode-button.is-active {
  background: var(--mc-primary-soft);
  color: var(--mc-primary);
  border-color: #cfe0ff;
}

.chart-container {
  position: relative;
  width: 100%;
}

.chart-canvas-wrap {
  position: relative;
  width: 100%;
  min-height: 260px;
}

.date-range-label,
.chart-legend-note {
  font-size: var(--mc-font-sm);
  color: var(--mc-text-muted);
}

.coverage-note {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mc-space-2);
  margin-top: var(--mc-space-3);
}

.coverage-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  border: 1px solid var(--mc-primary);
  display: inline-block;
}

.coverage-dot--solid {
  background: var(--mc-primary);
}

.coverage-dot--semi {
  background: rgba(47, 111, 237, 0.35);
}

.coverage-dot--hollow {
  background: transparent;
}

.coverage-line--faded {
  opacity: 0.35;
}

.coverage-gap {
  border-bottom: 1px dashed rgba(47, 111, 237, 0.35);
}

.summary-metric-item {
  padding: var(--mc-space-3);
  border-radius: var(--mc-radius-md);
  background: var(--mc-surface-soft);
}

.date-picker-row,
.query-action-row,
.meal-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--mc-space-2);
  align-items: center;
}

.date-picker-field {
  min-height: 44px;
  padding: 0 var(--mc-space-3);
  border: 1px solid var(--mc-border);
  border-radius: 999px;
  background: var(--mc-surface);
  color: var(--mc-text);
}

.day-report-list {
  display: grid;
  gap: var(--mc-space-4);
}

.daily-overview-panel,
.mood-note-panel {
  margin-top: var(--mc-space-3);
  padding: var(--mc-space-3);
  border-radius: var(--mc-radius-md);
  background: var(--mc-surface-soft);
}

.meal-photo-grid {
  display: grid;
  gap: var(--mc-space-2);
  margin: var(--mc-space-3) 0;
}

.meal-photo-grid--single {
  grid-template-columns: 1fr;
}

.meal-photo-grid--triple {
  grid-template-columns: repeat(3, 1fr);
}

.meal-photo {
  aspect-ratio: 3 / 2;
  object-fit: cover;
  width: 100%;
  border: 1px solid var(--mc-border);
}

.expand-inline-link {
  display: inline-flex;
  margin-top: var(--mc-space-2);
  color: var(--mc-primary);
  font-weight: 600;
}

.modal-dialog {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: none;
  padding: var(--mc-space-4);
  background: rgba(20, 27, 40, 0.45);
}

.modal-dialog.is-open {
  display: grid;
  place-items: center;
}

.modal-panel {
  width: min(100%, 420px);
  background: var(--mc-surface);
  border-radius: var(--mc-radius-lg);
  box-shadow: var(--mc-shadow);
  padding: var(--mc-space-5);
}

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: var(--mc-space-2);
  margin-top: var(--mc-space-4);
}

.screen-only {
  display: block;
}

.print-only {
  display: none;
}

@media (min-width: 768px) {
  .page-header__inner,
  .page-main {
    padding-left: var(--mc-space-5);
    padding-right: var(--mc-space-5);
  }

  .stats-card-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .summary-metrics-bar {
    grid-template-columns: repeat(3, 1fr);
  }

  .meal-review-header,
  .meal-entry-header,
  .day-report-header {
    align-items: center;
  }
}