/* ============================================
   CookOnce Design System
   Offline-First Minimalist Recipe Clipper
   ============================================ */

/* ===========================================
   Design Tokens
   =========================================== */
:root {
  /* Colors - Warm, appetizing palette */
  --color-bg-primary: #fefdfb;
  --color-bg-secondary: #f8f6f3;
  --color-bg-tertiary: #f0ede8;
  --color-bg-card: #ffffff;
  
  --color-text-primary: #1a1814;
  --color-text-secondary: #5c5650;
  --color-text-tertiary: #8a837a;
  --color-text-inverse: #ffffff;
  
  --color-accent-primary: #e07850;
  --color-accent-primary-hover: #c86840;
  --color-accent-primary-light: #fef3ef;
  --color-accent-secondary: #3d8b6e;
  --color-accent-secondary-light: #eef7f3;
  
  --color-border: #e8e4df;
  --color-border-light: #f0ede8;
  
  --color-success: #3d8b6e;
  --color-warning: #d4a017;
  --color-error: #c84040;
  
  /* Cook Mode (Dark) */
  --color-cook-bg: #1a1814;
  --color-cook-text: #fefdfb;
  --color-cook-accent: #e07850;
  
  /* Typography */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  
  --text-xs: 0.75rem;    /* 12px */
  --text-sm: 0.875rem;   /* 14px */
  --text-base: 1rem;     /* 16px */
  --text-lg: 1.125rem;   /* 18px */
  --text-xl: 1.25rem;    /* 20px */
  --text-2xl: 1.5rem;    /* 24px */
  --text-3xl: 2rem;      /* 32px */
  --text-4xl: 2.5rem;    /* 40px */
  
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  --line-tight: 1.2;
  --line-snug: 1.4;
  --line-normal: 1.6;
  --line-relaxed: 1.8;
  
  /* Spacing */
  --space-1: 0.25rem;   /* 4px */
  --space-2: 0.5rem;    /* 8px */
  --space-3: 0.75rem;   /* 12px */
  --space-4: 1rem;      /* 16px */
  --space-5: 1.25rem;   /* 20px */
  --space-6: 1.5rem;    /* 24px */
  --space-8: 2rem;      /* 32px */
  --space-10: 2.5rem;   /* 40px */
  --space-12: 3rem;     /* 48px */
  --space-16: 4rem;     /* 64px */
  
  /* Border Radius */
  --radius-sm: 0.375rem;  /* 6px */
  --radius-md: 0.5rem;    /* 8px */
  --radius-lg: 0.75rem;   /* 12px */
  --radius-xl: 1rem;      /* 16px */
  --radius-full: 9999px;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(26, 24, 20, 0.05);
  --shadow-md: 0 4px 12px rgba(26, 24, 20, 0.08);
  --shadow-lg: 0 8px 24px rgba(26, 24, 20, 0.12);
  --shadow-xl: 0 16px 48px rgba(26, 24, 20, 0.16);
  
  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  
  /* Z-Index Scale */
  --z-dropdown: 100;
  --z-modal: 200;
  --z-toast: 300;
  --z-cookmode: 400;
}

/* ===========================================
   Reset & Base
   =========================================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--line-normal);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#app {
  min-height: 100vh;
  min-height: 100dvh;
}

/* ===========================================
   Header
   =========================================== */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-bg-primary);
  border-bottom: 1px solid var(--color-border-light);
}

.header-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.logo-icon {
  font-size: var(--text-2xl);
}

.menu-btn, .add-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.menu-btn:hover, .add-btn:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.add-btn {
  background: var(--color-accent-primary);
  color: var(--color-text-inverse);
}

.add-btn:hover {
  background: var(--color-accent-primary-hover);
  color: var(--color-text-inverse);
}

/* ===========================================
   Main Content
   =========================================== */
.main {
  padding: var(--space-4);
  max-width: 1200px;
  margin: 0 auto;
}

/* Search */
.search-container {
  margin-bottom: var(--space-4);
}

.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: var(--space-4);
  color: var(--color-text-tertiary);
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 48px;
  padding: 0 var(--space-4) 0 var(--space-12);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), background var(--transition-fast);
}

.search-input::placeholder {
  color: var(--color-text-tertiary);
}

.search-input:focus {
  outline: none;
  background: var(--color-bg-card);
  border-color: var(--color-accent-primary);
}

/* Filter Tags */
.filter-tags {
  display: flex;
  gap: var(--space-2);
  overflow-x: auto;
  padding-bottom: var(--space-2);
  margin-bottom: var(--space-6);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.filter-tags::-webkit-scrollbar {
  display: none;
}

.filter-tag {
  flex-shrink: 0;
  padding: var(--space-2) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.filter-tag:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.filter-tag.active {
  background: var(--color-accent-primary);
  color: var(--color-text-inverse);
}

/* Recipes Section */
.recipes-section {
  margin-bottom: var(--space-8);
}

.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.section-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

.recipe-count {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

/* Recipe Grid */
.recipe-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

/* Recipe Card */
.recipe-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border-light);
  cursor: pointer;
  transition: all var(--transition-base);
}

.recipe-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-border);
}

.recipe-card:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

.recipe-card-image {
  width: 100%;
  height: 160px;
  object-fit: cover;
  background: var(--color-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}

.recipe-card-content {
  padding: var(--space-4);
}

.recipe-card-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  line-height: var(--line-tight);
}

.recipe-card-meta {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-3);
}

.recipe-card-meta svg {
  width: 16px;
  height: 16px;
}

.recipe-card-meta span {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.recipe-card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1);
}

.recipe-tag {
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-accent-primary);
  background: var(--color-accent-primary-light);
  border-radius: var(--radius-sm);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-4);
  text-align: center;
}

.empty-icon {
  font-size: 4rem;
  margin-bottom: var(--space-4);
}

.empty-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.empty-text {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-6);
  max-width: 300px;
}

/* ===========================================
   Buttons
   =========================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: 1;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--color-accent-primary);
  color: var(--color-text-inverse);
}

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

.btn-secondary {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.btn-secondary:hover {
  background: var(--color-bg-tertiary);
}

.btn-full {
  width: 100%;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* ===========================================
   Modal
   =========================================== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(26, 24, 20, 0.5);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: var(--z-modal);
  padding: var(--space-4);
  animation: fadeIn 200ms ease;
}

@media (min-width: 640px) {
  .modal-overlay {
    align-items: center;
  }
}

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

.modal {
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  background: var(--color-bg-card);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  overflow: hidden;
  animation: slideUp 300ms ease;
}

@media (min-width: 640px) {
  .modal {
    border-radius: var(--radius-xl);
  }
}

@keyframes slideUp {
  from { 
    opacity: 0;
    transform: translateY(20px);
  }
  to { 
    opacity: 1;
    transform: translateY(0);
  }
}

.modal-large {
  max-width: 640px;
  max-height: 95vh;
}

.modal-small {
  max-width: 360px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.modal-title {
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

.modal-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

/* Modal Tabs */
.modal-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border-light);
}

.modal-tab {
  flex: 1;
  padding: var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-tertiary);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.modal-tab.active {
  color: var(--color-accent-primary);
  border-bottom-color: var(--color-accent-primary);
}

/* Tab Content */
.tab-content {
  padding: var(--space-4);
  overflow-y: auto;
  max-height: calc(90vh - 200px);
}

/* ===========================================
   Forms
   =========================================== */
.form-group {
  margin-bottom: var(--space-4);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input, .form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background: var(--color-bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.form-input::placeholder, .form-textarea::placeholder {
  color: var(--color-text-tertiary);
}

.form-input:focus, .form-textarea:focus {
  outline: none;
  background: var(--color-bg-card);
  border-color: var(--color-accent-primary);
}

.form-textarea {
  resize: vertical;
  line-height: var(--line-relaxed);
}

.form-hint {
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
  margin-top: var(--space-1);
}

/* Tag Selection */
.tag-select {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.tag-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.tag-checkbox:has(input:checked) {
  background: var(--color-accent-primary-light);
  color: var(--color-accent-primary);
}

.tag-checkbox input {
  display: none;
}

/* ===========================================
   Recipe Detail
   =========================================== */
.recipe-detail {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.recipe-detail-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.back-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.back-btn:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.recipe-detail-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.action-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.action-btn:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

.cook-mode-btn {
  background: var(--color-accent-secondary);
  color: var(--color-text-inverse);
}

.cook-mode-btn:hover {
  background: #357a5f;
  color: var(--color-text-inverse);
}

.recipe-detail-body {
  padding: var(--space-4);
  overflow-y: auto;
  flex: 1;
}

.recipe-detail-title {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  line-height: var(--line-tight);
}

.recipe-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.recipe-meta-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.recipe-meta-item svg {
  width: 18px;
  height: 18px;
  color: var(--color-accent-primary);
}

.recipe-section {
  margin-bottom: var(--space-6);
}

.recipe-section-title {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--space-3);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-light);
}

.ingredient-list {
  list-style: none;
}

.ingredient-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-2) 0;
  font-size: var(--text-base);
  color: var(--color-text-primary);
  border-bottom: 1px solid var(--color-border-light);
}

.ingredient-item:last-child {
  border-bottom: none;
}

.ingredient-checkbox {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  accent-color: var(--color-accent-primary);
  cursor: pointer;
}

.ingredient-text {
  flex: 1;
}

.ingredient-amount {
  font-weight: var(--font-medium);
}

.instruction-list {
  list-style: none;
  counter-reset: step;
}

.instruction-item {
  display: flex;
  gap: var(--space-4);
  padding: var(--space-3) 0;
  border-bottom: 1px solid var(--color-border-light);
}

.instruction-item:last-child {
  border-bottom: none;
}

.instruction-number {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-accent-primary);
  background: var(--color-accent-primary-light);
  border-radius: var(--radius-full);
}

.instruction-text {
  flex: 1;
  line-height: var(--line-relaxed);
  padding-top: 2px;
}

/* ===========================================
   Cook Mode
   =========================================== */
.cook-mode {
  position: fixed;
  inset: 0;
  background: var(--color-cook-bg);
  color: var(--color-cook-text);
  z-index: var(--z-cookmode);
  display: flex;
  flex-direction: column;
}

.cook-mode-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cook-exit-btn, .cook-timer-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-cook-text);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.cook-exit-btn:hover, .cook-timer-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.cook-progress {
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
}

.cook-mode-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-8);
  text-align: center;
}

.cook-step-text {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--font-normal);
  line-height: var(--line-snug);
  max-width: 600px;
}

@media (min-width: 640px) {
  .cook-step-text {
    font-size: var(--text-4xl);
  }
}

.cook-nav {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-10);
}

.cook-nav-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-4) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: var(--font-medium);
  color: var(--color-cook-text);
  background: rgba(255, 255, 255, 0.1);
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.cook-nav-btn:hover {
  background: rgba(255, 255, 255, 0.2);
}

.cook-nav-next {
  background: var(--color-cook-accent);
}

.cook-nav-next:hover {
  background: var(--color-accent-primary-hover);
}

.cook-ingredients-toggle {
  padding: var(--space-4);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.toggle-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  width: 100%;
  padding: var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.7);
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-md);
  cursor: pointer;
}

.toggle-btn:hover {
  background: rgba(255, 255, 255, 0.05);
}

.cook-ingredients {
  padding: var(--space-4);
  background: rgba(255, 255, 255, 0.05);
  max-height: 200px;
  overflow-y: auto;
}

.cook-ingredient-item {
  padding: var(--space-2) 0;
  font-size: var(--text-sm);
  color: rgba(255, 255, 255, 0.8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

/* ===========================================
   Scale Modal
   =========================================== */
.scale-options {
  padding: var(--space-4);
}

.scale-label {
  text-align: center;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.scale-buttons {
  display: flex;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
}

.scale-btn {
  flex: 1;
  padding: var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border: 2px solid transparent;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.scale-btn:hover {
  background: var(--color-bg-tertiary);
}

.scale-btn.active {
  background: var(--color-accent-primary-light);
  color: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
}

.scale-custom {
  margin-bottom: var(--space-4);
}

/* ===========================================
   Side Menu
   =========================================== */
.side-menu {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: 280px;
  background: var(--color-bg-card);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  transform: translateX(-100%);
  transition: transform var(--transition-slow);
}

.side-menu:not(.hidden) {
  transform: translateX(0);
}

.side-menu-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(26, 24, 20, 0.5);
  z-index: calc(var(--z-modal) - 1);
}

.side-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.side-menu-header h2 {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

.side-menu-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  border-radius: var(--radius-md);
}

.side-menu-close:hover {
  background: var(--color-bg-secondary);
}

.side-menu-nav {
  flex: 1;
  padding: var(--space-2);
}

.side-menu-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.side-menu-item:hover {
  background: var(--color-bg-secondary);
  color: var(--color-text-primary);
}

.side-menu-item.active {
  background: var(--color-accent-primary-light);
  color: var(--color-accent-primary);
}

.side-menu-footer {
  padding: var(--space-4);
  border-top: 1px solid var(--color-border-light);
}

.unit-toggle {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-bottom: var(--space-4);
  font-size: var(--text-sm);
  color: var(--color-text-tertiary);
}

.unit-btn {
  padding: var(--space-1) var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  background: var(--color-bg-secondary);
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.unit-btn.active {
  background: var(--color-accent-primary);
  color: var(--color-text-inverse);
}

.storage-info {
  margin-bottom: var(--space-3);
}

.storage-label {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
  margin-bottom: var(--space-1);
}

.storage-bar {
  height: 4px;
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-1);
  overflow: hidden;
}

.storage-fill {
  height: 100%;
  background: var(--color-accent-secondary);
  border-radius: var(--radius-full);
}

.storage-text {
  font-size: var(--text-xs);
  color: var(--color-text-tertiary);
}

.upgrade-link {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-accent-primary);
  text-decoration: none;
}

.upgrade-link:hover {
  text-decoration: underline;
}

/* ===========================================
   Toast
   =========================================== */
.toast {
  position: fixed;
  bottom: var(--space-6);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-3) var(--space-5);
  background: var(--color-text-primary);
  color: var(--color-text-inverse);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-toast);
  animation: toastIn 300ms ease;
}

@keyframes toastIn {
  from {
    opacity: 0;
    transform: translate(-50%, 20px);
  }
  to {
    opacity: 1;
    transform: translate(-50%, 0);
  }
}

/* ===========================================
   Utilities
   =========================================== */
.hidden {
  display: none !important;
}

/* Focus visible for accessibility */
:focus-visible {
  outline: 2px solid var(--color-accent-primary);
  outline-offset: 2px;
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ===========================================
   Media Queries
   =========================================== */
@media (max-width: 480px) {
  .recipe-grid {
    grid-template-columns: 1fr;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (min-width: 768px) {
  .main {
    padding: var(--space-6);
  }
  
  .recipe-grid {
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}