:root {
  --bg: #f7f8f5;
  --card: #ffffff;
  --line: #dde5df;
  --text: #1f2933;
  --muted: #60707f;
  --green: #23735b;
  --green-soft: #eaf5ef;
  --low: #8a5b00;
  --low-soft: #fff3d6;
  --high: #b42318;
  --high-soft: #ffe8e6;
  --shadow: 0 8px 24px rgba(45, 74, 60, 0.06);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", sans-serif;
}

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

button {
  border: 0;
}

.app-shell {
  min-height: 100vh;
  padding-bottom: calc(76px + env(safe-area-inset-bottom));
}

.page {
  width: min(920px, 100%);
  margin: 0 auto;
  padding: 20px 16px 24px;
}

.header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.title {
  margin: 0;
  font-size: 28px;
  line-height: 1.2;
}

.subtitle {
  display: block;
  margin-top: 8px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.45;
}

.subtitle-row {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 8px;
}

.subtitle-row .subtitle {
  margin: 0;
}

.card {
  margin-bottom: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--card);
  box-shadow: var(--shadow);
}

.card-title {
  margin: 0 0 14px;
  font-size: 19px;
}

.dashboard-grid,
.metric-grid,
.date-grid,
.measure-grid {
  display: grid;
  gap: 12px;
}

.dashboard-grid {
  grid-template-columns: 1fr;
}

.metric-grid,
.date-grid,
.measure-grid {
  grid-template-columns: 1fr 1fr;
}

.field.full {
  grid-column: 1 / -1;
}

.label {
  display: block;
  margin-bottom: 8px;
  color: #5d6b76;
  font-size: 14px;
  font-weight: 600;
}

.input,
.textarea,
.select,
.readonly {
  width: 100%;
  min-height: 46px;
  padding: 0 14px;
  border: 1px solid #d8e0e4;
  border-radius: 8px;
  background: #fbfcfa;
  color: var(--text);
  font-size: 17px;
}

.readonly {
  display: flex;
  align-items: center;
  background: #eef2f4;
}

.textarea {
  height: 64px;
  padding-top: 12px;
  line-height: 1.4;
  resize: vertical;
}

.food-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.primary-button,
.secondary-button,
.danger-button,
.text-button {
  border-radius: 8px;
  cursor: pointer;
}

.primary-button {
  width: 100%;
  height: 54px;
  background: var(--green);
  color: #fff;
  font-size: 18px;
  font-weight: 700;
}

.secondary-button {
  height: 40px;
  padding: 0 16px;
  border: 1px solid #d8e0e4;
  background: #fff;
  color: #49606e;
}

.danger-button {
  height: 34px;
  padding: 0 14px;
  border: 1px solid #f2b8b5;
  background: #fff;
  color: var(--high);
}

.text-button {
  padding: 0;
  background: transparent;
  color: var(--green);
}

.sticky-actions {
  position: sticky;
  bottom: calc(72px + env(safe-area-inset-bottom));
  z-index: 2;
  padding: 12px 0;
  background: linear-gradient(180deg, rgba(247, 248, 245, 0), var(--bg) 30%);
}

.glucose-panel {
  padding: 16px;
  border-radius: 8px;
  background: #f2f8f5;
}

.summary-label,
.summary-note,
.stat-label {
  display: block;
  color: var(--muted);
  font-size: 14px;
}

.summary-value {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin: 6px 0;
  color: #1f6f54;
  font-size: 42px;
  font-weight: 800;
}

.summary-unit {
  font-size: 14px;
  font-weight: 600;
}

.status-pill {
  flex: 0 0 auto;
  padding: 7px 12px;
  border-radius: 999px;
  background: var(--green-soft);
  color: #1f6f54;
  font-size: 14px;
  font-weight: 700;
}

.low {
  color: var(--low);
}

.high {
  color: var(--high);
}

.unknown {
  color: #6a7882;
}

.status-pill.low,
.recent-chip.low,
.metric-alert.low {
  background: var(--low-soft);
  color: var(--low);
}

.status-pill.high,
.recent-chip.high,
.metric-alert.high {
  background: var(--high-soft);
  color: var(--high);
}

.status-pill.unknown {
  background: #eef2f4;
  color: #6a7882;
}

.summary-stat {
  min-width: 0;
  padding: 14px 10px;
  border-radius: 8px;
  background: #f2f6f4;
  text-align: center;
}

.stat-number {
  display: block;
  color: #25323b;
  font-size: 28px;
  font-weight: 800;
}

.meal-dots {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.meal-dot {
  padding: 9px 6px;
  border-radius: 8px;
  background: #eef2f4;
  color: #6a7882;
  font-size: 14px;
  text-align: center;
}

.meal-dot.active {
  background: var(--green);
  color: #fff;
  font-weight: 700;
}

.bar-row {
  display: grid;
  grid-template-columns: 52px 1fr 34px;
  align-items: center;
  gap: 10px;
  margin: 10px 0;
  color: #3c4a54;
  font-size: 14px;
}

.bar-track {
  display: block;
  height: 9px;
  overflow: hidden;
  border-radius: 999px;
  background: #eef2f4;
}

.bar-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: var(--green);
}

.recent-row {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.recent-chip {
  flex: 0 0 auto;
  min-width: 78px;
  padding: 10px 12px;
  border-radius: 8px;
  background: var(--green-soft);
  color: #1f6f54;
}

.recent-value {
  display: block;
  font-size: 20px;
  font-weight: 800;
}

.recent-meta {
  display: block;
  margin-top: 3px;
  font-size: 12px;
}

.record-card {
  position: relative;
  margin-bottom: 14px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  box-shadow: var(--shadow);
}

.record-top {
  display: flex;
  justify-content: space-between;
  gap: 14px;
}

.record-title {
  display: block;
  font-size: 17px;
  font-weight: 800;
}

.record-time,
.record-meta {
  color: var(--muted);
  font-size: 13px;
}

.glucose-badge {
  display: flex;
  min-width: 70px;
  height: 52px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  background: var(--green-soft);
  color: #1f6f54;
  font-weight: 800;
}

.glucose-badge.low {
  background: var(--low-soft);
  color: var(--low);
}

.glucose-badge.high {
  background: var(--high-soft);
  color: var(--high);
}

.glucose-badge.unknown {
  background: #eef2f4;
  color: #6a7882;
}

.unit {
  font-size: 11px;
  font-weight: 600;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0;
}

.tag {
  max-width: 100%;
  padding: 7px 10px;
  border-radius: 8px;
  background: #f2f6f4;
  font-size: 13px;
  line-height: 1.45;
}

.tag strong {
  margin-right: 6px;
  color: var(--green);
}

.record-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 12px;
}

.export-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 12px;
}

.selected-count {
  margin-left: auto;
  color: var(--muted);
  font-size: 14px;
}

.date-checks {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.date-check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px;
  border: 1px solid #d8e0e4;
  border-radius: 8px;
  background: #fbfcfa;
}

.date-check-title {
  display: block;
  font-size: 14px;
  font-weight: 800;
}

.date-check-count {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.empty {
  padding: 28px 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--muted);
  text-align: center;
}

.tabbar {
  position: fixed;
  right: 0;
  bottom: 0;
  left: 0;
  z-index: 5;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 8px 0 calc(8px + env(safe-area-inset-bottom));
  border-top: 1px solid #e4ebe7;
  background: rgba(255, 255, 255, 0.96);
}

.tab {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  background: transparent;
  color: #6a7882;
  font-size: 13px;
}

.tab.active {
  color: var(--green);
  font-weight: 700;
}

.tab-icon {
  font-size: 20px;
  line-height: 1;
}

@media (min-width: 760px) {
  .page {
    padding-top: 28px;
  }

  .dashboard-grid {
    grid-template-columns: 1.35fr 1fr;
  }

  .food-grid {
    grid-template-columns: 1fr 1fr;
  }

  .meal-dots {
    grid-template-columns: repeat(6, 1fr);
  }
}