/* Fuuds — Global Styles */

:root {
  --green-900: #14532d;
  --green-800: #166534;
  --green-700: #15803d;
  --green-600: #16a34a;
  --green-500: #22c55e;
  --green-100: #dcfce7;
  --green-50: #f0fdf4;

  --slate-900: #0f172a;
  --slate-800: #1e293b;
  --slate-700: #334155;
  --slate-600: #475569;
  --slate-500: #64748b;
  --slate-400: #94a3b8;
  --slate-300: #cbd5e1;
  --slate-200: #e2e8f0;
  --slate-100: #f1f5f9;
  --slate-50: #f8fafc;

  --red-600: #dc2626;
  --red-100: #fee2e2;

  --amber-600: #d97706;
  --amber-100: #fef3c7;

  --radius: 8px;
  --radius-lg: 12px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, sans-serif;
  line-height: 1.6;
  color: var(--slate-800);
  background: var(--slate-50);
  min-height: 100vh;
}

/* Layout */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
}

.container--narrow {
  max-width: 480px;
}

.container--wide {
  max-width: 1200px;
}

/* Navigation */
.nav {
  background: var(--green-800);
  color: white;
  padding: 0.75rem 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-md);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 960px;
  margin: 0 auto;
  padding: 0 1rem;
}

.nav__brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: white;
  text-decoration: none;
}

.nav__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
}

.nav__links a {
  color: var(--green-100);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.15s;
}

.nav__links a:hover {
  color: white;
}

.nav__links a.active {
  color: white;
  border-bottom: 2px solid white;
  padding-bottom: 2px;
}

/* Page header */
.page-header {
  padding: 2rem 0 1rem;
}

.page-header h1 {
  font-size: 1.5rem;
  color: var(--slate-900);
}

.page-header p {
  color: var(--slate-500);
  margin-top: 0.25rem;
}

/* Cards */
.card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 1.5rem;
  margin-bottom: 1rem;
}

.card--hero {
  text-align: center;
  padding: 3rem 2rem;
}

.card h2 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
  color: var(--slate-900);
}

.card h3 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  color: var(--slate-700);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.625rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s;
  line-height: 1.4;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn--primary {
  background: var(--green-700);
  color: white;
}

.btn--primary:hover:not(:disabled) {
  background: var(--green-800);
}

.btn--secondary {
  background: var(--slate-200);
  color: var(--slate-700);
}

.btn--secondary:hover:not(:disabled) {
  background: var(--slate-300);
}

.btn--outline {
  background: transparent;
  color: var(--green-700);
  border: 1px solid var(--green-700);
}

.btn--outline:hover:not(:disabled) {
  background: var(--green-50);
}

.btn--lg {
  padding: 0.75rem 2rem;
  font-size: 1rem;
}

.btn--full {
  width: 100%;
}

.btn--danger {
  background: var(--red-600);
  color: white;
}

/* Forms */
.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--slate-700);
  margin-bottom: 0.375rem;
}

.form-group .hint {
  font-size: 0.8rem;
  color: var(--slate-500);
  margin-top: 0.25rem;
}

input[type="text"],
input[type="email"],
input[type="number"],
textarea,
select {
  width: 100%;
  padding: 0.625rem 0.75rem;
  border: 1px solid var(--slate-300);
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-family: inherit;
  background: white;
  color: var(--slate-800);
  transition: border-color 0.15s;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--green-600);
  box-shadow: 0 0 0 3px rgba(22, 163, 74, 0.15);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

/* Alerts */
.alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  font-size: 0.875rem;
  margin-bottom: 1rem;
}

.alert--success {
  background: var(--green-100);
  color: var(--green-800);
}

.alert--error {
  background: var(--red-100);
  color: var(--red-600);
}

.alert--warning {
  background: var(--amber-100);
  color: var(--amber-600);
}

.alert--info {
  background: var(--slate-100);
  color: var(--slate-700);
}

/* Tags / Badges */
.badge {
  display: inline-block;
  padding: 0.125rem 0.5rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge--green {
  background: var(--green-100);
  color: var(--green-800);
}

.badge--slate {
  background: var(--slate-200);
  color: var(--slate-600);
}

/* Grid */
.grid {
  display: grid;
  gap: 1rem;
}

.grid--2 {
  grid-template-columns: repeat(2, 1fr);
}

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

/* Stat cards */
.stat {
  text-align: center;
  padding: 1rem;
}

.stat__value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--green-700);
}

.stat__label {
  font-size: 0.8rem;
  color: var(--slate-500);
  margin-top: 0.125rem;
}

/* Meal plan grid */
.day-card {
  background: white;
  border-radius: var(--radius);
  border: 1px solid var(--slate-200);
  overflow: hidden;
}

.day-card__header {
  background: var(--green-50);
  padding: 0.5rem 0.75rem;
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--green-800);
  border-bottom: 1px solid var(--slate-200);
}

.day-card__meal {
  padding: 0.5rem 0.75rem;
  border-bottom: 1px solid var(--slate-100);
  font-size: 0.85rem;
}

.day-card__meal:last-child {
  border-bottom: none;
}

.day-card__meal-type {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--slate-500);
  margin-bottom: 0.125rem;
}

.day-card__meal-name {
  color: var(--slate-800);
}

.day-card__cost {
  font-size: 0.75rem;
  color: var(--slate-400);
}

/* Empty state */
.empty {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--slate-500);
}

.empty__icon {
  font-size: 2.5rem;
  margin-bottom: 0.75rem;
}

.empty h3 {
  color: var(--slate-700);
  margin-bottom: 0.5rem;
}

/* Loading / HTMX indicator */
.htmx-indicator {
  display: none;
}

.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
  display: inline-block;
}

.spinner {
  display: inline-block;
  width: 1.25rem;
  height: 1.25rem;
  border: 2px solid var(--slate-300);
  border-top-color: var(--green-600);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* Landing page */
.hero {
  text-align: center;
  padding: 4rem 1rem;
}

.hero h1 {
  font-size: 2.5rem;
  color: var(--slate-900);
  margin-bottom: 0.5rem;
}

.hero h1 span {
  color: var(--green-600);
}

.hero p {
  font-size: 1.125rem;
  color: var(--slate-500);
  max-width: 480px;
  margin: 0 auto 2rem;
}

.features {
  padding: 2rem 0 3rem;
}

.feature-card {
  text-align: center;
  padding: 1.5rem 1rem;
}

.feature-card__icon {
  font-size: 2rem;
  margin-bottom: 0.75rem;
}

.feature-card h3 {
  margin-bottom: 0.375rem;
}

.feature-card p {
  font-size: 0.875rem;
  color: var(--slate-500);
}

/* Auth pages */
.auth-page {
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
}

.auth-card {
  width: 100%;
  max-width: 400px;
}

.auth-card h1 {
  text-align: center;
  margin-bottom: 0.25rem;
}

.auth-card .subtitle {
  text-align: center;
  color: var(--slate-500);
  margin-bottom: 1.5rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem 0;
  color: var(--slate-400);
  font-size: 0.8rem;
  border-top: 1px solid var(--slate-200);
  margin-top: 3rem;
}

/* Responsive */
@media (max-width: 640px) {
  .grid--2,
  .grid--3 {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 1.75rem;
  }

  .nav__links {
    gap: 1rem;
  }

  .nav__links a {
    font-size: 0.8rem;
  }
}

/* HTMX transitions */
.fade-in {
  animation: fadeIn 0.2s ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(4px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Preference chips (for exclusions/equipment) */
.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.625rem;
  background: var(--slate-100);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--slate-700);
}

/* Plan action buttons */
.plan-actions {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}