/* ============================================================
   Chef IA — Variables CSS y estilos globales
   ============================================================ */

:root {
  --bg-gradient-start: #f7f9fc;
  --bg-gradient-end: #eef2f7;
  --card-bg: rgba(255, 255, 255, 0.92);
  --card-border: 1px solid rgba(255, 255, 255, 0.5);
  --text-primary: #1e293b;
  --text-secondary: #4a5568;
  --text-muted: #6c757d;
  --badge-light-bg: #f1f5f9;
  --badge-light-text: #1e293b;
  --notes-bg: #fffbeb;
  --notes-border: #f97316;
  --input-bg: #ffffff;
  --input-border: #e2e8f0;
  --banner-bg: #fff7ed;
  --banner-text: #9a3412;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.06);
}

body.dark {
  --bg-gradient-start: #0f172a;
  --bg-gradient-end: #1e293b;
  --card-bg: rgba(30, 41, 59, 0.95);
  --card-border: 1px solid rgba(255, 255, 255, 0.08);
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --badge-light-bg: #334155;
  --badge-light-text: #e2e8f0;
  --notes-bg: #2d1f00;
  --notes-border: #f97316;
  --input-bg: #1e293b;
  --input-border: #475569;
  --banner-bg: #2d1f00;
  --banner-text: #fb923c;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: linear-gradient(145deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  padding: 2rem 0;
  transition: background 0.3s, color 0.3s;
  color: var(--text-primary);
}

/* ── Card shell ── */
.card-modern {
  background: var(--card-bg);
  backdrop-filter: blur(8px);
  border: var(--card-border);
  border-radius: 2rem;
  box-shadow: var(--shadow-md);
  transition: background 0.3s, border-color 0.3s;
}

/* ── Nav pills ── */
.nav-pills .nav-link {
  border-radius: 3rem;
  padding: 0.6rem 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
}

.nav-pills .nav-link.active {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: white;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.35);
}

.nav-pills .nav-link:not(.active):hover {
  background: var(--badge-light-bg);
}

/* ── Bootstrap overrides ── */
.text-secondary { color: var(--text-secondary) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-dark { color: var(--text-primary) !important; }
.bg-light { background-color: var(--badge-light-bg) !important; }

.btn-primary {
  background: linear-gradient(135deg, #f97316, #ea580c) !important;
  border-color: #f97316 !important;
  color: #fff !important;
}
.btn-primary:hover {
  background: linear-gradient(135deg, #ea580c, #c2410c) !important;
  border-color: #ea580c !important;
}
.btn-primary:disabled { opacity: 0.6; }

.alert-warning {
  color: var(--text-primary) !important;
  background-color: var(--banner-bg) !important;
  border-color: #f97316 !important;
}
.alert-danger {
  color: #991b1b !important;
  background-color: #fef2f2 !important;
}
body.dark .alert-danger {
  color: #fca5a5 !important;
  background-color: #2d1f1f !important;
}

.card {
  background: var(--card-bg) !important;
  border: var(--card-border) !important;
  color: var(--text-primary);
}

.form-control, .form-select {
  background: var(--input-bg) !important;
  border-color: var(--input-border) !important;
  color: var(--text-primary) !important;
}
.form-control::placeholder { color: var(--text-muted) !important; }
.badge { color: var(--badge-light-text) !important; }

/* ── Header ── */
.logo-icon {
  background: linear-gradient(135deg, #f97316, #ea580c);
  width: 52px;
  height: 52px;
  border-radius: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  box-shadow: 0 4px 12px rgba(249, 115, 22, 0.3);
  flex-shrink: 0;
}

.theme-toggle {
  cursor: pointer;
  font-size: 1.4rem;
  background: var(--badge-light-bg);
  border: none;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  color: var(--text-primary);
}
.theme-toggle:hover {
  transform: scale(1.05);
  background: #f97316;
  color: #fff;
}

/* ── Banner ── */
.banner-notification {
  background: var(--banner-bg);
  border-radius: 1.2rem;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--banner-text);
  font-size: 0.95rem;
  border: 1px solid rgba(249, 115, 22, 0.15);
  max-width: 380px;
}
.banner-highlight { color: #f97316; font-weight: 600; }

/* ── Recipe Card ── */
.recipe-card { border-radius: 1.2rem; }
.badge-category {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: #fff !important;
  font-size: 0.8rem;
  font-weight: 600;
}
.action-icon {
  cursor: pointer;
  font-size: 1.3rem;
  transition: transform 0.2s;
}
.action-icon:hover { transform: scale(1.15); }

.notes-box {
  background: var(--notes-bg);
  border-left: 4px solid var(--notes-border);
  padding: 0.75rem 1rem;
  border-radius: 0 8px 8px 0;
  font-size: 0.9rem;
}

/* ── Forms ── */
.form-label-custom {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
}
.form-label-custom i { font-size: 1.1rem; color: #f97316; }

.form-control-custom, .form-select-custom {
  border-radius: 1rem;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-primary);
  padding: 0.7rem 1rem;
  font-size: 0.95rem;
}
.form-control-custom:focus, .form-select-custom:focus {
  border-color: #f97316;
  box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
}

.btn-remove-ingredient {
  border-radius: 0.75rem;
  border: 1px solid #fecaca;
  background: transparent;
  color: #dc2626;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  cursor: pointer;
}
.btn-remove-ingredient:hover { background: #fef2f2; border-color: #dc2626; }
body.dark .btn-remove-ingredient { border-color: #7f1d1d; color: #fca5a5; }
body.dark .btn-remove-ingredient:hover { background: #2d1f1f; border-color: #ef4444; }

.btn-add-ingredient {
  color: #f97316;
  font-weight: 500;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}
.btn-add-ingredient:hover { color: #ea580c; }

/* ── Radio group ── */
.radio-group-custom { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.radio-group-custom .form-check {
  padding-left: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.radio-group-custom .form-check-input {
  width: 1.1rem;
  height: 1.1rem;
  border-radius: 50%;
  border: 2px solid var(--input-border);
  background: var(--input-bg);
  margin: 0;
  cursor: pointer;
}
.radio-group-custom .form-check-input:checked {
  background-color: #f97316;
  border-color: #f97316;
}

/* ── Difficulty ── */
.difficulty-group { display: flex; gap: 0.5rem; align-items: center; }
.btn-difficulty {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-secondary);
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.btn-difficulty.active {
  background: linear-gradient(135deg, #f97316, #ea580c);
  border-color: #f97316;
  color: #fff;
}

/* ── Servings ── */
.servings-group { display: flex; align-items: center; gap: 0.75rem; }
.btn-servings {
  width: 40px;
  height: 40px;
  border-radius: 0.75rem;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--text-primary);
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.servings-display { font-weight: 700; font-size: 1.1rem; min-width: 2rem; text-align: center; }

/* ── Generate button ── */
.btn-generar {
  background: linear-gradient(135deg, #f97316, #ea580c);
  border: none;
  border-radius: 1.2rem;
  padding: 1rem 1.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: #fff;
  transition: all 0.25s;
  box-shadow: 0 4px 16px rgba(249, 115, 22, 0.3);
  cursor: pointer;
}
.btn-generar:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(249, 115, 22, 0.4);
}
.btn-generar .subtitle {
  font-size: 0.75rem;
  font-weight: 400;
  opacity: 0.85;
  display: block;
  margin-top: 0.15rem;
}

/* ── Loader ── */
.loader {
  width: 20px;
  height: 20px;
  border: 2.5px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Examples ── */
.ejemplos-section { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.ejemplos-label {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.ejemplo-tag {
  background: var(--badge-light-bg);
  color: var(--badge-light-text);
  border-radius: 3rem;
  padding: 0.4rem 1.2rem;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
  border: 1px solid transparent;
}
.ejemplo-tag:hover { border-color: #f97316; color: #f97316; }

/* ── Error alert ── */
.error-alert {
  background-color: #fef2f2;
  border-left: 4px solid #dc2626;
  color: #991b1b;
  border-radius: 1rem;
  padding: 0.75rem 1.25rem;
}
body.dark .error-alert {
  background-color: #2d1f1f;
  border-left-color: #ef4444;
  color: #fca5a5;
}

/* ── Allergy badges ── */
.allergy-badge {
  font-size: 0.85rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background-color: var(--badge-light-bg);
  color: var(--badge-light-text);
  border: 2px solid transparent;
  transition: all 0.2s ease;
  user-select: none;
  cursor: pointer;
}
.allergy-badge:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.allergy-badge.selected {
  background-color: #fef2f2;
  color: #991b1b;
  border-color: #fca5a5;
}
body.dark .allergy-badge.selected {
  background-color: #2d1f1f;
  color: #fca5a5;
  border-color: #7f1d1d;
}

/* ── Ingredient badge (image analysis) ── */
.ingredient-badge {
  font-size: 0.85rem;
  padding: 0.4rem 1rem;
  border-radius: 999px;
  background: var(--badge-light-bg);
  color: var(--badge-light-text);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}
.ingredient-badge:hover { transform: translateY(-1px); box-shadow: var(--shadow-sm); }
.ingredient-badge.selected {
  background: #fef2f2;
  color: #991b1b;
  border-color: #fca5a5;
}
body.dark .ingredient-badge.selected {
  background: #2d1f1f;
  color: #fca5a5;
  border-color: #7f1d1d;
}

/* ── Filter badges ── */
.filter-badge {
  background: var(--badge-light-bg);
  color: var(--badge-light-text);
  border-radius: 3rem;
  padding: 0.4rem 1.2rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  font-size: 0.85rem;
  border: 1px solid transparent;
}
.filter-badge:hover { border-color: #f97316; }
.filter-badge.active-filter {
  background: linear-gradient(135deg, #f97316, #ea580c);
  color: white;
  border-color: #f97316;
  box-shadow: 0 2px 8px rgba(249, 115, 22, 0.25);
}

/* ── Upload zone ── */
.upload-zone {
  border: 2px dashed var(--input-border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
}
.upload-zone:hover { border-color: #f97316; }
.upload-zone.disabled { cursor: not-allowed; opacity: 0.6; }

/* ── Auth ── */
.auth-container { color: var(--text-primary); }