:root {
  --color-bg: #f4f6f8;
  --color-surface: #ffffff;
  --color-primary: #2f6feb;
  --color-primary-dark: #1f4fbb;
  --color-text: #1f2937;
  --color-muted: #6b7280;
  --color-border: #e2e5e9;
  --color-danger: #d9534f;
  --radius: 10px;
}

* {
  box-sizing: border-box;
}

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

.app-header {
  background: var(--color-primary);
  color: white;
  padding: 1.2rem 1.5rem;
}

.app-header h1 {
  margin: 0;
  font-size: 1.4rem;
}

.app-header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.header-user {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.85rem;
}

.header-logout {
  color: white;
  text-decoration: underline;
}

.tabs {
  display: flex;
  gap: 0.25rem;
  background: var(--color-surface);
  padding: 0.5rem 1rem 0;
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
}

.tab-btn {
  background: none;
  border: none;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  cursor: pointer;
  color: var(--color-muted);
  border-bottom: 3px solid transparent;
  white-space: nowrap;
}

.tab-btn:hover {
  color: var(--color-text);
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: 600;
}

main {
  max-width: 800px;
  margin: 0 auto;
  padding: 1.5rem;
}

.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeIn 0.15s ease-in;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

h2 {
  font-size: 1.1rem;
  margin: 1.5rem 0 0.75rem;
}

h2:first-child {
  margin-top: 0;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-grid label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--color-muted);
}

.form-grid .full-width {
  grid-column: 1 / -1;
}

input, select, textarea {
  font-family: inherit;
  font-size: 0.95rem;
  padding: 0.55rem 0.65rem;
  border: 1px solid var(--color-border);
  border-radius: 6px;
  background: white;
  color: var(--color-text);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

textarea {
  resize: vertical;
}

.btn-primary {
  grid-column: 1 / -1;
  justify-self: start;
  background: var(--color-primary);
  color: white;
  border: none;
  padding: 0.65rem 1.3rem;
  border-radius: 6px;
  font-size: 0.95rem;
  cursor: pointer;
  margin-top: 0.25rem;
}

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

.list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.empty-state {
  color: var(--color-muted);
  font-style: italic;
  padding: 1rem 0;
}

.item-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem;
}

.item-card .item-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.5rem;
}

.item-card .item-title {
  font-weight: 600;
}

.item-card .item-meta {
  font-size: 0.8rem;
  color: var(--color-muted);
  margin-top: 0.2rem;
}

.item-card .item-notes {
  margin-top: 0.5rem;
  font-size: 0.9rem;
}

.btn-icon {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-muted);
  font-size: 0.9rem;
  padding: 0.2rem 0.4rem;
  border-radius: 4px;
}

.btn-icon:hover {
  color: var(--color-danger);
  background: #fdecea;
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  font-size: 0.85rem;
  padding: 0;
  margin-top: 0.5rem;
}

.dosage-history {
  margin-top: 0.75rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--color-border);
  display: none;
}

.dosage-history.open {
  display: block;
}

.dosage-entry {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.4rem 0;
  font-size: 0.85rem;
  border-bottom: 1px solid var(--color-border);
}

.dosage-entry .dosage-dose {
  flex: 1;
}

.dosage-entry:last-child {
  border-bottom: none;
}

.dosage-entry.current .dosage-dose {
  color: var(--color-primary);
  font-weight: 600;
}

.badge {
  display: inline-block;
  font-size: 0.7rem;
  background: #e8f0fe;
  color: var(--color-primary);
  padding: 0.1rem 0.5rem;
  border-radius: 20px;
  margin-left: 0.4rem;
}

.mini-form {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.75rem;
  align-items: flex-end;
}

.mini-form label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: var(--color-muted);
}

.mini-form input {
  min-width: 100px;
}

.mood-picker {
  display: flex;
  gap: 0.5rem;
}

.mood-option {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  background: white;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.6rem 0.25rem;
  cursor: pointer;
  font-size: 1.4rem;
}

.mood-option span {
  font-size: 0.65rem;
  color: var(--color-muted);
  text-align: center;
}

.mood-option.selected {
  border-color: var(--color-primary);
  background: #eef4ff;
}

.tag-input {
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 0.4rem;
  background: white;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-bottom: 0.3rem;
}

.tags:empty {
  margin-bottom: 0;
}

.tag {
  background: #eef4ff;
  color: var(--color-primary-dark);
  border-radius: 20px;
  padding: 0.15rem 0.6rem;
  font-size: 0.8rem;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.tag button {
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
  font-size: 0.85rem;
  line-height: 1;
  padding: 0;
}

#symptom-tag-field {
  border: none;
  width: 100%;
  padding: 0.2rem;
}

#symptom-tag-field:focus {
  outline: none;
}

.suggestion-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 0.5rem;
}

.suggestion-chip {
  background: white;
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: 20px;
  padding: 0.2rem 0.7rem;
  font-size: 0.78rem;
  cursor: pointer;
}

.suggestion-chip:hover {
  border-color: var(--color-primary);
}

.suggestion-chip.selected {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.hint {
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-top: -0.5rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.bpm-input {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.bpm-input input[type="number"] {
  flex: 1;
}

.checkbox-label {
  flex-direction: row !important;
  align-items: center;
  gap: 0.4rem !important;
  font-size: 0.85rem;
  cursor: pointer;
  white-space: nowrap;
}

.checkbox-label input[type="checkbox"] {
  width: auto;
  padding: 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.9rem;
}

.stat-card .stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-card .stat-label {
  font-size: 0.78rem;
  color: var(--color-muted);
  margin-top: 0.2rem;
}

.stat-card .stat-sub {
  font-size: 0.72rem;
  color: var(--color-muted);
  margin-top: 0.15rem;
}

.chart-container {
  overflow-x: auto;
}

.chart-svg {
  width: 100%;
  min-width: 480px;
  height: auto;
  display: block;
}

.table-scroll {
  overflow-x: auto;
}

.stat-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  min-width: 420px;
}

.stat-table th,
.stat-table td {
  text-align: left;
  padding: 0.45rem 0.6rem;
  border-bottom: 1px solid var(--color-border);
}

.stat-table th {
  color: var(--color-muted);
  font-weight: 600;
  font-size: 0.78rem;
}

.stat-table tbody tr:last-child td {
  border-bottom: none;
}

.stock-low {
  color: #b9770e;
  font-weight: 600;
}

.stock-empty {
  color: var(--color-danger);
  font-weight: 600;
}

#med-search-results button.item-card,
#med-search-packaging button.btn-link {
  font: inherit;
  color: inherit;
  display: block;
}

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.calendar-month-label {
  font-weight: 600;
  text-transform: capitalize;
}

.calendar-weekdays {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  text-align: center;
  font-size: 0.72rem;
  color: var(--color-muted);
  margin-bottom: 0.3rem;
}

.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
}

.cal-cell {
  position: relative;
  aspect-ratio: 1;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: white;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  padding: 4px 6px;
  font-size: 0.78rem;
  color: var(--color-text);
}

.cal-cell:hover {
  border-color: var(--color-primary);
}

.cal-cell.empty {
  visibility: hidden;
  cursor: default;
}

.cal-cell.today {
  border-color: var(--color-primary);
  font-weight: 700;
}

.cal-cell.selected {
  background: #eef4ff;
  border-color: var(--color-primary);
}

.cal-badge {
  position: absolute;
  bottom: 4px;
  right: 4px;
  background: var(--color-primary);
  color: white;
  border-radius: 10px;
  font-size: 0.65rem;
  padding: 1px 5px;
  line-height: 1.3;
}

.agenda-day {
  margin-bottom: 1rem;
}

.agenda-day-label {
  font-weight: 600;
  margin-bottom: 0.4rem;
  text-transform: capitalize;
}

.agenda-entry {
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
  font-size: 0.88rem;
}

.agenda-entry .agenda-time {
  color: var(--color-primary);
  font-weight: 600;
  min-width: 42px;
}

@media (max-width: 560px) {
  .cal-cell {
    font-size: 0.68rem;
    padding: 3px 4px;
  }
}

.frequency-input {
  display: flex;
  gap: 0.5rem;
}

.frequency-input .freq-count {
  width: 70px;
  flex: none;
}

.frequency-input .freq-unit {
  flex: 1;
}

.freq-preview {
  font-size: 0.78rem;
  color: var(--color-muted);
  min-height: 1em;
}

.journal-entry {
  display: flex;
  gap: 0.75rem;
}

.journal-icon {
  font-size: 1.3rem;
}

.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-text);
  color: white;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error {
  background: var(--color-danger);
}

@media (max-width: 560px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
  .mood-option span {
    display: none;
  }
}