:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --surface2: #252836;
  --border: #2e3148;
  --accent: #6c63ff;
  --accent-hover: #8b84ff;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #3b82f6;
}

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

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

/* ── Header ─────────────────────────────────────────────────────────────── */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 2rem;
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-title {
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.5px;
}

.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  border-radius: 1rem;
  background-color: var(--surface2);
  border: 1px solid var(--border);
  font-size: 0.875rem;
  font-weight: 500;
}

.status-ok {
  border-color: var(--success);
  color: var(--success);
}

.status-error {
  border-color: var(--danger);
  color: var(--danger);
}

/* ── Tab Navigation ───────────────────────────────────────────────────────── */
.tab-nav {
  display: flex;
  gap: 0.5rem;
  padding: 1rem 2rem;
  background-color: var(--surface);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.tab-btn {
  padding: 0.75rem 1.5rem;
  background-color: transparent;
  border: 1px solid var(--border);
  border-radius: 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

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

.tab-btn.active {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

/* ── Main Content ───────────────────────────────────────────────────────── */
main {
  max-width: 1400px;
  margin: 0 auto;
  padding: 2rem;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.2s ease;
}

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

.tab-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 2rem;
}

.tab-header h2 {
  font-size: 1.875rem;
  font-weight: 600;
}

.header-actions {
  display: flex;
  gap: 1rem;
  align-items: center;
}

/* ── Forms ──────────────────────────────────────────────────────────────── */
.form-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.form-card h3 {
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
}

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

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
  padding: 0.75rem;
  background-color: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color 0.2s ease;
}

.form-group input:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent);
  background-color: rgba(108, 99, 255, 0.05);
}

.form-group select option {
  background-color: var(--surface2);
  color: var(--text);
}

.form-actions {
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
  padding: 0.75rem 1.5rem;
  background-color: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
}

.btn:hover {
  background-color: var(--border);
  border-color: var(--text-muted);
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

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

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

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

.btn-danger:hover {
  background-color: #dc2626;
  border-color: #dc2626;
}

.btn-success {
  background-color: var(--success);
  border-color: var(--success);
  color: var(--bg);
}

.btn-success:hover {
  background-color: #16a34a;
  border-color: #16a34a;
}

.btn-secondary {
  background-color: var(--surface2);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: var(--text-muted);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
}

/* ── Tables ────────────────────────────────────────────────────────────── */
table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  overflow: hidden;
}

thead {
  background-color: var(--surface2);
  border-bottom: 1px solid var(--border);
}

th {
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

td {
  padding: 1rem;
  border-top: 1px solid var(--border);
  font-size: 0.9rem;
}

tbody tr:nth-child(odd) {
  background-color: rgba(255, 255, 255, 0.01);
}

tbody tr:hover {
  background-color: rgba(108, 99, 255, 0.1);
}

tbody tr.expiry-danger {
  background-color: rgba(239, 68, 68, 0.1);
  border-left: 3px solid var(--danger);
}

tbody tr.expiry-warn {
  background-color: rgba(245, 158, 11, 0.1);
  border-left: 3px solid var(--warning);
}

/* ── Cards ──────────────────────────────────────────────────────────────── */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  transition: all 0.2s ease;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

.card-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.card-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.card-body {
  font-size: 0.9rem;
}

/* ── Recipe List ───────────────────────────────────────────────────────── */
.recipe-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1rem;
  padding: 1rem 0;
}

.recipe-card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  transition: border-color 0.2s ease;
}

.recipe-card:hover {
  border-color: var(--accent);
}

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

.recipe-card-title {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
}

.recipe-type-badge {
  font-size: 0.7rem;
  padding: 0.2rem 0.6rem;
  border-radius: 9999px;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.recipe-type-badge.breakfast { background-color: rgba(251, 191, 36, 0.2); color: #fbbf24; }
.recipe-type-badge.lunch { background-color: rgba(52, 211, 153, 0.2); color: #34d399; }
.recipe-type-badge.dinner { background-color: rgba(139, 92, 246, 0.2); color: #8b5cf6; }
.recipe-type-badge.snack { background-color: rgba(251, 146, 60, 0.2); color: #fb923c; }

.recipe-card-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.recipe-card-ingredients {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.recipe-card-instructions {
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.6;
  border-top: 1px solid var(--border);
  padding-top: 0.5rem;
  margin-top: 0.25rem;
  white-space: pre-line;
}

.recipe-card .btn {
  align-self: flex-start;
  margin-top: 0.5rem;
}

.recipe-card-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

/* ── Grocery List ───────────────────────────────────────────────────────── */
.grocery-section {
  margin-bottom: 2rem;
}

.grocery-section-title {
  font-weight: 600;
  font-size: 1.125rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border);
  text-transform: capitalize;
}

.grocery-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 0.75rem;
  background-color: rgba(255, 255, 255, 0.01);
  border-radius: 0.375rem;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
}

.grocery-item input[type="checkbox"] {
  margin-top: 0.25rem;
  cursor: pointer;
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.grocery-item-details {
  flex: 1;
}

.grocery-item-name {
  font-weight: 500;
  margin-bottom: 0.25rem;
}

.grocery-item-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.grocery-total {
  background-color: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
  text-align: center;
}

.grocery-total-label {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.grocery-total-amount {
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

/* ── Stats Bar Chart ────────────────────────────────────────────────────── */
.stats-section {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1.5rem;
  margin-bottom: 2rem;
}

.stats-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.stat-item {
  display: grid;
  grid-template-columns: 150px 1fr 80px;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1rem;
}

.stat-label {
  font-size: 0.9rem;
  font-weight: 500;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.stat-bar {
  display: flex;
  align-items: center;
  height: 28px;
  background-color: var(--surface2);
  border-radius: 0.375rem;
  overflow: hidden;
}

.stat-bar-fill {
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 0.5rem;
  color: var(--bg);
  font-size: 0.8rem;
  font-weight: 600;
  transition: width 0.3s ease;
}

.stat-count {
  font-size: 0.9rem;
  font-weight: 600;
  text-align: right;
  color: var(--text-muted);
}

/* ── Meals Timeline ────────────────────────────────────────────────────── */
.meals-timeline {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.meal-date-group {
  border-left: 3px solid var(--accent);
  padding-left: 1.5rem;
}

.meal-date-label {
  font-weight: 600;
  font-size: 1rem;
  margin-bottom: 1rem;
  color: var(--accent);
}

.meal-entry {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 0.75rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
}

.meal-type-badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.meal-type-breakfast {
  background-color: rgba(245, 158, 11, 0.2);
  color: var(--warning);
}

.meal-type-lunch {
  background-color: rgba(108, 99, 255, 0.2);
  color: var(--accent);
}

.meal-type-dinner {
  background-color: rgba(34, 197, 94, 0.2);
  color: var(--success);
}

.meal-type-snack {
  background-color: rgba(59, 130, 246, 0.2);
  color: var(--info);
}

.meal-info {
  flex: 1;
}

.meal-name {
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.meal-time {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.meal-notes {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 0.5rem;
  font-style: italic;
}

/* ── Spinners ───────────────────────────────────────────────────────────── */
.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--surface2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ── Toasts ────────────────────────────────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.toast {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  padding: 1rem 1.5rem;
  min-width: 280px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
  animation: slideIn 0.3s ease;
  display: flex;
  gap: 0.75rem;
  align-items: flex-start;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateX(400px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideOut {
  to {
    opacity: 0;
    transform: translateX(400px);
  }
}

.toast.exiting {
  animation: slideOut 0.3s ease forwards;
}

.toast-icon {
  flex-shrink: 0;
  font-size: 1.25rem;
  line-height: 1;
}

.toast-message {
  flex: 1;
  font-size: 0.9rem;
}

.toast-success {
  border-color: var(--success);
}

.toast-success .toast-icon {
  color: var(--success);
}

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

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

/* ── Utility Classes ────────────────────────────────────────────────────── */
.hidden {
  display: none !important;
}

.empty-state {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--text-muted);
  font-size: 1rem;
}

.info-banner {
  background-color: rgba(59, 130, 246, 0.1);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1.5rem;
  color: var(--info);
  font-size: 0.9rem;
}

.warning-banner {
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid rgba(245, 158, 11, 0.3);
  border-radius: 0.5rem;
  padding: 1rem;
  margin-bottom: 1.5rem;
  color: var(--warning);
  font-size: 0.9rem;
}

/* ── Responsive ────────────────────────────────────────────────────────── */
@media (max-width: 768px) {
  main {
    padding: 1rem;
  }

  header {
    padding: 1rem;
    flex-direction: column;
    gap: 1rem;
  }

  .tab-nav {
    padding: 0.5rem 1rem;
    gap: 0.25rem;
  }

  .tab-btn {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
  }

  .tab-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .stat-item {
    grid-template-columns: 120px 1fr 60px;
  }

  #toast-container {
    bottom: 1rem;
    right: 1rem;
    left: 1rem;
  }

  .toast {
    min-width: unset;
  }
}

.ai-notes-input {
  width: 100%;
  padding: 0.6rem 0.75rem;
  background-color: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 0.375rem;
  color: var(--text);
  font-size: 0.85rem;
  resize: vertical;
  font-family: inherit;
  margin-bottom: 0.5rem;
}

.ai-notes-input:focus {
  outline: none;
  border-color: var(--accent);
}

.ai-notes-input::placeholder {
  color: var(--text-muted);
}

.grocery-item-checked {
  opacity: 0.45;
}

.grocery-item-checked .grocery-item-name {
  text-decoration: line-through;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
}

.modal {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  padding: 1.5rem;
  width: 100%;
  max-width: 420px;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.modal-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
}

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

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.75rem;
}

.chat-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 180px);
}

.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 1rem 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chat-welcome {
  color: var(--text-muted);
  font-style: italic;
  text-align: center;
  padding: 2rem;
}

.chat-message {
  display: flex;
}

.chat-message-user {
  justify-content: flex-end;
}

.chat-message-assistant {
  justify-content: flex-start;
}

.chat-bubble {
  max-width: 75%;
  padding: 0.75rem 1rem;
  border-radius: 1rem;
  font-size: 0.9rem;
  line-height: 1.6;
  word-break: break-word;
}

.chat-message-user .chat-bubble {
  background-color: var(--accent);
  color: white;
  border-bottom-right-radius: 0.25rem;
}

.chat-message-assistant .chat-bubble {
  background-color: var(--surface2);
  color: var(--text);
  border-bottom-left-radius: 0.25rem;
}

.chat-typing-indicator {
  color: var(--text-muted);
  font-style: italic;
}

.chat-input-area {
  display: flex;
  gap: 0.75rem;
  align-items: flex-end;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.chat-input {
  flex: 1;
  padding: 0.75rem;
  background-color: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  font-size: 0.9rem;
  resize: none;
  font-family: inherit;
  line-height: 1.5;
}

.chat-input:focus {
  outline: none;
  border-color: var(--accent);
}

.chat-input::placeholder {
  color: var(--text-muted);
}