:root {
  /* Premium Palette - Emerald & Slate */
  --primary: #059669;
  --primary-light: #10b981;
  --primary-dark: #047857;
  --primary-glow: rgba(5, 150, 105, 0.2);
  --primary-bg: rgba(5, 150, 105, 0.06);

  /* Secondary - Ocean Blue */
  --secondary: #0ea5e9;
  --secondary-light: #38bdf8;
  --secondary-glow: rgba(14, 165, 233, 0.3);
  --secondary-bg: rgba(14, 165, 233, 0.08);

  /* Accent - Vibrant & Sophisticated */
  --accent-orange: #f59e0b;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;

  /* Macros - Refined */
  --protein: #3b82f6;
  --carbs: #f59e0b;
  --fat: #ef4444;
  --protein-bg: rgba(59, 130, 246, 0.12);
  --carbs-bg: rgba(245, 158, 11, 0.12);
  --fat-bg: rgba(239, 68, 68, 0.12);

  /* Glassmorphism Defaults */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.5);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
  --glass-blur: blur(12px);

  /* Text - Slate family */
  --text: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --text-inverse: #ffffff;

  /* Background - Soft whites/grays */
  --bg: #f8fafc;
  --bg-card: #ffffff;
  --bg-hover: #f1f5f9;
  --bg-pressed: #e2e8f0;

  /* Surface */
  --surface: #ffffff;
  --surface-secondary: #f1f5f9;

  /* Border */
  --border: #e2e8f0;
  --border-light: #f1f5f9;

  /* Shadows - Layered */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;

  /* Radius */
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 18px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Typography */
  --font-family: 'Outfit', system-ui, -apple-system, sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 22px;
  --font-size-2xl: 28px;
  --font-size-3xl: 36px;

  /* Layout */
  --tabbar-height: 72px;
  --header-height: 64px;
  --max-width: 500px;

  /* Transitions */
  --transition-cubic: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 150ms var(--transition-cubic);
  --transition: 300ms var(--transition-cubic);
  --transition-slow: 500ms var(--transition-cubic);
}

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

html {
  font-size: var(--font-size);
  -webkit-tap-highlight-color: transparent;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size);
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overscroll-behavior: none;
  overflow-x: hidden;
}

/* Background Mesh */
.bg-mesh {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background-color: var(--bg);
  background-image: 
    radial-gradient(at 10% 10%, rgba(16, 185, 129, 0.05) 0px, transparent 40%),
    radial-gradient(at 90% 10%, rgba(14, 165, 233, 0.05) 0px, transparent 40%);
  filter: blur(100px);
}

#app {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  color: var(--text);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
  color: var(--text-secondary);
  letter-spacing: -0.01em;
}

small {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

/* Buttons */
button {
  font-family: inherit;
  font-size: inherit;
  cursor: pointer;
  border: none;
  background: none;
  outline: none;
  transition: all var(--transition-fast);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--radius);
  font-weight: 600;
  font-size: var(--font-size);
  transition: all var(--transition);
  white-space: nowrap;
  user-select: none;
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px 0 var(--primary-glow);
}

.btn-primary:hover:not(:disabled) {
  background: var(--primary-dark);
  box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
  transform: translateY(-2px);
}

.btn-secondary {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  color: var(--text);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-hover);
  border-color: var(--border);
  transform: translateY(-1px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--primary-bg);
  color: var(--primary);
}

.btn-danger {
  background: var(--fat);
  color: var(--text-inverse);
  box-shadow: 0 4px 14px 0 var(--fat-bg);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-full {
  width: 100%;
}

/* Inputs */
input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  outline: none;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  background: var(--bg-card);
  color: var(--text);
  transition: all var(--transition-fast);
  width: 100%;
}

input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
  background: var(--surface);
}

/* Glassmorphism utility */
.glass {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
}

/* Cards */
.card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--spacing-lg);
  border: 1px solid var(--border-light);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-md);
}

/* Layout utilities */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-center {
  justify-content: center;
}

.justify-between {
  justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* Scrollable areas */
.scrollable {
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.scrollable::-webkit-scrollbar {
  width: 6px;
}

.scrollable::-webkit-scrollbar-track {
  background: transparent;
}

.scrollable::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: var(--radius-full);
}

/* Loading spinner */
@keyframes spin {
  to { transform: rotate(360deg); }
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

/* Views */
.view {
  flex: 1;
  display: none;
  flex-direction: column;
  opacity: 0;
}

.view.active {
  display: flex;
  animation: viewFadeIn 0.4s var(--transition-cubic) forwards;
}

@keyframes viewFadeIn {
  from { 
    opacity: 0; 
    transform: translateY(10px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

.hidden {
  display: none !important;
}

/* Header */
.header {
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header h1 {
  font-size: var(--font-size-xl);
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
}

.date-display {
  font-size: var(--font-size-sm);
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-bg);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  gap: 6px;
}

.date-display::before {
  content: '📅';
  font-size: 14px;
}

/* Main Content */
.main-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-lg) 0;
  padding-bottom: calc(var(--tabbar-height) + var(--spacing-lg));
}

/* Auth View */
.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
}

.auth-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-2xl);
  width: 100%;
  max-width: 400px;
}

.logo {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.logo-icon {
  font-size: 48px;
  display: block;
  margin-bottom: var(--spacing-sm);
}

.logo h1 {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-xs);
}

.logo p {
  font-size: var(--font-size-sm);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.auth-form h2 {
  text-align: center;
  margin-bottom: var(--spacing-sm);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.form-group label {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.auth-switch {
  text-align: center;
  font-size: var(--font-size-sm);
}

.error-message {
  background: var(--fat-bg);
  color: var(--fat);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius);
  font-size: var(--font-size-sm);
  margin-top: var(--spacing-md);
}

/* Calorie Ring */
.calorie-ring-card {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
  text-align: center;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border-light);
}

.calorie-ring-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at center, var(--primary-bg) 0%, transparent 60%);
  z-index: 0;
  pointer-events: none;
  opacity: 0.5;
}

.calorie-ring {
  position: relative;
  width: 220px;
  height: 220px;
  margin: 0 auto var(--spacing-xl);
  z-index: 1;
}

.ring-svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
  filter: drop-shadow(0 0 10px rgba(16, 185, 129, 0.15));
}

.ring-bg {
  stroke: var(--surface-secondary);
}

.ring-progress {
  stroke: var(--primary);
  stroke-linecap: round;
  stroke-dasharray: 251.2;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset var(--transition-slow);
}

.ring-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.ring-value {
  font-size: 48px;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
  letter-spacing: -0.05em;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.ring-label {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.15em;
  margin-top: 4px;
}

.calorie-stats {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-2xl);
  position: relative;
  z-index: 1;
  margin-top: calc(-1 * var(--spacing-md));
}

.stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-value {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--text);
}

.stat-label {
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--border);
}

/* Macros Section */
.macros-section {
  margin-bottom: var(--spacing-xl);
}

.macros-section h3 {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
}

.macros-grid {
  display: grid;
  gap: var(--spacing-md);
}

.macro-card {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--spacing-md) var(--spacing-lg);
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.macro-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

.macro-title {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.macro-icon {
  font-size: var(--font-size-lg);
}

.macro-name {
  font-weight: 700;
  font-size: var(--font-size-sm);
  letter-spacing: -0.01em;
}

.macro-card.protein .macro-name { color: var(--protein); }
.macro-card.carbs .macro-name { color: var(--carbs); }
.macro-card.fat .macro-name { color: var(--fat); }

.macro-values {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-secondary);
}

.macro-progress {
  width: 100%;
}

.progress-bar {
  height: 10px;
  background: var(--surface-secondary);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width var(--transition-slow);
  width: 0;
  position: relative;
}

.progress-fill::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0) 100%);
  animation: shimmer 3s infinite;
}

@keyframes shimmer {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

.progress-fill.protein { 
  background: linear-gradient(90deg, var(--protein), #60a5fa);
  box-shadow: 0 0 10px rgba(59, 130, 246, 0.2);
}
.progress-fill.carbs { 
  background: linear-gradient(90deg, var(--carbs), #fbbf24);
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.2);
}
.progress-fill.fat { 
  background: linear-gradient(90deg, var(--fat), #f87171);
  box-shadow: 0 0 10px rgba(239, 68, 68, 0.2);
}

/* Quick Add Section */
.quick-add-section {
  margin-bottom: var(--spacing-lg);
}

/* Food Logs List */
.food-logs-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.meal-section {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  animation: fadeIn 0.5s var(--transition-cubic) both;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.meal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
}

.meal-name {
  font-weight: 700;
  font-size: var(--font-size-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  letter-spacing: -0.02em;
}

.meal-calories {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--text-muted);
  background: var(--surface-secondary);
  padding: 4px 10px;
  border-radius: var(--radius-full);
}

.food-log-item {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: var(--spacing-md);
  display: flex;
  gap: var(--spacing-md);
  position: relative;
  border: 1px solid var(--border-light);
  transition: all var(--transition-fast);
}

.food-log-item:hover {
  border-color: var(--primary-light);
  transform: scale(1.01);
  box-shadow: var(--shadow-sm);
}

.food-log-item .delete-btn {
  position: absolute;
  top: var(--spacing-sm);
  right: var(--spacing-sm);
  padding: 6px;
  color: var(--text-muted);
  background: var(--bg-hover);
  border-radius: var(--radius-sm);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.food-log-item:hover .delete-btn {
  opacity: 1;
}

.food-log-item .delete-btn:hover {
  color: var(--fat);
  background: var(--fat-bg);
}

.food-log-image {
  width: 64px;
  height: 64px;
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--surface-secondary);
  flex-shrink: 0;
}

.food-log-details {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.food-log-name {
  font-weight: 600;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text);
}

.food-log-brand {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  margin-bottom: 4px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.food-log-macros {
  display: flex;
  gap: var(--spacing-md);
  font-size: var(--font-size-xs);
  font-weight: 600;
  color: var(--text-secondary);
}

.food-log-macros span {
  display: flex;
  align-items: center;
  gap: 2px;
}

/* FAB */
.fab {
  position: fixed;
  bottom: calc(var(--tabbar-height) + var(--spacing-2xl));
  right: var(--spacing-lg);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: var(--primary);
  color: var(--text-inverse);
  font-size: var(--font-size-2xl);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 16px var(--primary-glow);
  z-index: 900;
  transition: all var(--transition);
}

.fab:hover {
  transform: scale(1.1) translateY(-4px);
  background: var(--primary-dark);
  box-shadow: 0 12px 24px var(--primary-glow);
}

/* Profile View */
.profile-header {
  background: var(--bg-card);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  display: flex;
  align-items: center;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.avatar {
  width: 80px;
  height: 80px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  font-weight: 800;
  flex-shrink: 0;
  box-shadow: 0 4px 12px var(--primary-glow);
}

.profile-info h2 {
  font-size: var(--font-size-2xl);
  margin-bottom: 2px;
}

.profile-info p {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-muted);
}

.profile-form {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.profile-form h3 {
  margin-bottom: var(--spacing-md);
}

.goals-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.danger-zone {
  padding: var(--spacing-lg);
}

/* Bottom Navigation */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: var(--max-width);
  height: var(--tabbar-height);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-around;
  z-index: 1000;
  padding-bottom: env(safe-area-inset-bottom);
}

.nav-item {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 4px;
  color: var(--text-muted);
  height: 100%;
  position: relative;
  transition: all var(--transition-fast);
}

.nav-item.active {
  color: var(--primary);
}

.nav-icon {
  font-size: 22px;
  transition: transform var(--transition-fast);
}

.nav-item.active .nav-icon {
  transform: translateY(-2px);
}

.nav-label {
  font-size: 11px;
  font-weight: 600;
}

/* Nav Add Button - Centered & Integrated */
.nav-item-add {
  flex: 1.2;
}

.add-icon-bg {
  width: 52px;
  height: 52px;
  background: var(--primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  box-shadow: 0 4px 12px var(--primary-glow);
  border: 4px solid var(--surface);
  margin-top: -32px;
  transition: transform var(--transition-fast);
}

.nav-item-add:active .add-icon-bg {
  transform: scale(0.9);
}

.nav-item-add .nav-icon {
  font-size: 24px;
  color: white;
}

/* Modal */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.modal-sheet {
  position: relative;
  width: 100%;
  max-width: var(--max-width);
  max-height: 90vh;
  background: var(--bg-card);
  border-radius: var(--radius-xl) var(--radius-xl) 0 0;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.4s var(--transition-cubic);
  border-top: 1px solid var(--glass-border);
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

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

.modal-header h2 {
  font-size: var(--font-size-xl);
  font-weight: 800;
}

.btn-close {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  background: var(--bg-hover);
  transition: all var(--transition-fast);
}

.btn-close:hover {
  background: var(--bg-pressed);
  color: var(--text);
  transform: scale(1.1);
}

.modal-content {
  flex: 1;
  overflow-y: auto;
  padding: var(--spacing-xl);
  scrollbar-width: none;
}

/* Search Box */
.search-box {
  margin-bottom: var(--spacing-lg);
  position: relative;
}

.search-box input {
  padding: var(--spacing-md);
  padding-left: calc(var(--spacing-md) + 24px);
  font-size: var(--font-size);
  background: var(--bg-hover);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.search-box input:focus {
  background: var(--bg-card);
  border-color: var(--primary);
  box-shadow: 0 0 0 4px var(--primary-glow);
}

.search-box::after {
  content: '🔍';
  position: absolute;
  left: var(--spacing-md);
  top: 50%;
  transform: translateY(-50%);
  font-size: 16px;
  opacity: 0.5;
}

/* UK Search Banner */
.uk-search-banner {
  background: linear-gradient(135deg, var(--primary-bg), var(--secondary-bg));
  padding: var(--spacing-md);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  border: 1px solid var(--primary-light);
  opacity: 0.9;
}

.uk-banner-icon {
  font-size: 24px;
}

.uk-banner-text p {
  font-size: var(--font-size-xs);
  font-weight: 700;
  color: var(--primary-dark);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin: 0;
}

.uk-banner-text small {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Search Results */
.search-results {
  max-height: 400px;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  padding-right: 4px;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-result-item:hover {
  border-color: var(--primary-light);
  background: var(--bg-hover);
  transform: scale(1.02);
  box-shadow: var(--shadow-sm);
}

.search-result-image {
  width: 56px;
  height: 56px;
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--surface-secondary);
  flex-shrink: 0;
}

.search-result-details {
  flex: 1;
  min-width: 0;
}

.search-result-name {
  font-weight: 700;
  font-size: var(--font-size);
  color: var(--text);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.search-result-brand {
  font-size: var(--font-size-xs);
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.search-result-calories {
  font-size: var(--font-size-sm);
  color: var(--primary-dark);
  font-weight: 700;
}

/* Loading & Error States */
.loading-state,
.error-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
  gap: var(--spacing-md);
}

.error-icon {
  font-size: var(--font-size-3xl);
}

/* Empty State */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  text-align: center;
  gap: var(--spacing-sm);
}

.empty-icon {
  font-size: 48px;
  opacity: 0.5;
}

.empty-state h3 {
  color: var(--text-secondary);
}

.empty-state p {
  font-size: var(--font-size-sm);
}

/* Food Log Modal */
.food-info {
  display: flex;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.food-image {
  width: 80px;
  height: 80px;
  border-radius: var(--radius);
  object-fit: cover;
  background: var(--border);
  flex-shrink: 0;
}

.food-details h3 {
  margin-bottom: var(--spacing-xs);
}

.food-details p {
  font-size: var(--font-size-sm);
}

.servings-control {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.servings-control input {
  flex: 1;
  text-align: center;
  padding: var(--spacing-sm);
}

.servings-control button {
  width: 40px;
  height: 40px;
  padding: 0;
}

#food-log-form small {
  display: block;
  margin-top: var(--spacing-xs);
}

.macro-preview {
  background: var(--bg-hover);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.macro-row {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-xs) 0;
  font-size: var(--font-size-sm);
}

.macro-row span:first-child {
  color: var(--text-secondary);
}

/* Toast */
.toast {
  position: fixed;
  bottom: calc(var(--tabbar-height) + var(--spacing-lg));
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--text);
  color: var(--text-inverse);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-lg);
  z-index: 300;
  transition: transform var(--transition);
  white-space: nowrap;
}

.toast.visible {
  transform: translateX(-50%) translateY(0);
}

/* Responsive */
/* Bottom Nav Add Button */
.nav-item-add {
  flex: 1.2;
  position: relative;
}

.add-icon-bg {
  width: 50px;
  height: 50px;
  background: var(--primary);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  margin-top: -30px;
  box-shadow: 0 4px 10px rgba(22, 163, 74, 0.4);
  border: 4px solid var(--bg-card);
  transition: transform var(--transition-fast);
}

.nav-item-add:active .add-icon-bg {
  transform: scale(0.9);
}

/* Add Options Modal */
.add-options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-md) 0;
}

.add-option-btn {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-xl);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.add-option-btn:hover {
  background: var(--primary-bg);
  border-color: var(--primary);
}

.option-icon {
  font-size: 40px;
}

.option-label {
  font-weight: 600;
  color: var(--text);
}

/* Progress View Styles */
.chart-container {
  height: 250px;
  margin-top: var(--spacing-lg);
}

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

.chart-period {
  display: flex;
  gap: var(--spacing-xs);
}

.btn-chip {
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  background: var(--bg-hover);
  color: var(--text-secondary);
  font-weight: 500;
}

.btn-chip.active {
  background: var(--primary);
  color: white;
}

.macro-averages {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.macro-avg-item {
  display: grid;
  grid-template-columns: 80px 1fr 60px;
  align-items: center;
  gap: var(--spacing-md);
}

.macro-avg-item .label {
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.avg-bar-bg {
  height: 10px;
  background: var(--border-light);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.avg-bar {
  height: 100%;
  border-radius: var(--radius-full);
  width: 0;
  transition: width 1s ease-out;
}

.macro-avg-item .value {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-align: right;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: var(--spacing-xl) 0 var(--spacing-md);
}

.weight-logs-list {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.weight-log-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-fast);
}

.weight-log-item:hover {
  transform: translateX(4px);
  border-color: var(--primary-light);
}

.weight-log-date {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
}

.weight-log-value {
  font-weight: 700;
  font-size: var(--font-size);
}

.weight-log-diff {
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  margin-left: var(--spacing-sm);
  text-transform: uppercase;
}

.weight-log-diff.down { background: var(--primary-bg); color: var(--primary-dark); }
.weight-log-diff.up { background: var(--fat-bg); color: var(--fat); }

/* Stats Grid in Profile */
.stats-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

/* Form Row */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

.calc-section {
  margin-bottom: var(--spacing-xl);
}

/* Responsive */
@media (min-width: 601px) {
  .bottom-nav {
    max-width: var(--max-width);
    left: 50%;
    transform: translateX(-50%);
  }

  .modal-sheet {
    border-radius: var(--radius-xl);
    margin-bottom: var(--spacing-lg);
  }
}

.search-result-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-xs);
}

.uk-badge, .verified-badge, .type-badge {
  font-size: 10px;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  white-space: nowrap;
}

.uk-badge {
  background: var(--bg-hover);
  color: var(--text-secondary);
}

.verified-badge {
  background: var(--primary-bg);
  color: var(--primary);
  border: 1px solid var(--primary-light);
}

.badge-group {
  display: flex;
  gap: 6px;
  align-items: center;
}

.type-badge {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-secondary);
  border: 1px solid var(--border-color);
  backdrop-filter: blur(4px);
}

.type-badge.cook-at-home {
  background: rgba(34, 197, 94, 0.1);
  color: #22c55e;
  border-color: rgba(34, 197, 94, 0.2);
}

.type-badge.takeaway {
  background: rgba(245, 158, 11, 0.1);
  color: #f59e0b;
  border-color: rgba(245, 158, 11, 0.2);
}

/* ===================== */
/* Global Action Modal   */
/* ===================== */
.action-modal-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(4px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.action-modal-overlay.active {
  opacity: 1;
  visibility: visible;
}
.action-modal {
  background: var(--bg-card);
  width: 100%;
  max-width: 360px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: var(--spacing-xl);
  transform: scale(0.9);
  transition: transform var(--transition);
  text-align: center;
}
.action-modal-overlay.active .action-modal {
  transform: scale(1);
}
.modal-icon { font-size: 44px; margin-bottom: var(--spacing-md); display: block; }
.modal-title { font-size: var(--font-size-xl); font-weight: 700; margin-bottom: var(--spacing-sm); color: var(--text); }
.modal-body { color: var(--text-secondary); margin-bottom: var(--spacing-xl); line-height: 1.6; }
.modal-actions { display: flex; gap: var(--spacing-md); justify-content: center; }

/* ======================== */
/* Global Loading Overlay   */
/* ======================== */
.loading-overlay {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(8px);
  z-index: 3000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition);
}
.loading-overlay.active { opacity: 1; visibility: visible; }
.loading-spinner {
  width: 48px; height: 48px;
  border: 4px solid var(--primary-bg);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.loading-text { font-weight: 600; color: var(--primary-dark); font-size: var(--font-size-sm); letter-spacing: 0.08em; text-transform: uppercase; }

/* ===================== */
/* Barcode Icon Styling  */
/* ===================== */
.search-box {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon-barcode {
  position: absolute;
  right: var(--spacing-md);
  color: var(--text-secondary);
  width: 20px;
  height: 20px;
  opacity: 0.6;
  pointer-events: none;
  transition: all var(--transition);
}

#food-search-input {
  padding-right: 48px;
}

.search-box:focus-within .search-icon-barcode {
  color: var(--primary);
  opacity: 1;
}