/* ===== NutriFlow - Material 3 Expressive Design System ===== */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ===== M3 Expressive Color Tokens ===== */
:root {
  /* Primary - Vibrant Teal for energy and health */
  --md-primary: #00BFA5;
  --md-primary-container: #004D40;
  --md-on-primary: #003731;
  --md-on-primary-container: #A7FFEB;

  /* Secondary - Warm Purple for accents */
  --md-secondary: #CE93D8;
  --md-secondary-container: #4A148C;
  --md-on-secondary: #1B0030;
  --md-on-secondary-container: #F3E5F5;

  /* Tertiary - Energetic Orange for highlights */
  --md-tertiary: #FFAB40;
  --md-tertiary-container: #E65100;
  --md-on-tertiary: #2D1600;
  --md-on-tertiary-container: #FFE0B2;

  /* Error - Soft Red */
  --md-error: #FF8A80;
  --md-error-container: #93000A;
  --md-on-error: #690005;
  --md-on-error-container: #FFDAD6;

  /* Surface colors - Rich dark theme */
  --md-surface: #1C1B1F;
  --md-surface-dim: #141316;
  --md-surface-bright: #3B383E;
  --md-surface-container-lowest: #0F0D13;
  --md-surface-container-low: #1C1B1F;
  --md-surface-container: #211F26;
  --md-surface-container-high: #2B2930;
  --md-surface-container-highest: #36343B;

  /* On Surface */
  --md-on-surface: #E6E0E9;
  --md-on-surface-variant: #CAC4D0;
  --md-outline: #938F99;
  --md-outline-variant: #49454F;

  /* Success State */
  --md-success: #69F0AE;
  --md-success-container: #00C853;

  /* Macro colors - Expressive palette */
  --color-calories: #00E5FF;
  --color-protein: #E040FB;
  --color-carbs: #FFAB40;
  --color-fat: #FF4081;
  --color-sodium: #FF6E40;
  --color-fiber: #69F0AE;
  --color-sugar: #EA80FC;

  /* Typography */
  --font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Shape - M3 Expressive uses larger corner radii */
  --shape-xs: 8px;
  --shape-sm: 12px;
  --shape-md: 16px;
  --shape-lg: 24px;
  --shape-xl: 28px;
  --shape-full: 9999px;

  /* Elevation */
  --elevation-1: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);
  --elevation-2: 0 3px 6px rgba(0, 0, 0, 0.15), 0 2px 4px rgba(0, 0, 0, 0.12);
  --elevation-3: 0 10px 20px rgba(0, 0, 0, 0.15), 0 3px 6px rgba(0, 0, 0, 0.10);
  --elevation-4: 0 15px 25px rgba(0, 0, 0, 0.15), 0 5px 10px rgba(0, 0, 0, 0.05);

  /* Motion - Expressive easing */
  --motion-standard: cubic-bezier(0.2, 0, 0, 1);
  --motion-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --motion-duration-short: 150ms;
  --motion-duration-medium: 300ms;
  --motion-duration-long: 500ms;
}

/* ===== High Contrast Light Theme ===== */
[data-theme="light"] {
  /* Primary */
  --md-primary: #006B5E;
  --md-primary-container: #A7FFEB;
  --md-on-primary: #FFFFFF;
  --md-on-primary-container: #00201C;

  /* Secondary */
  --md-secondary: #6B4C76;
  --md-secondary-container: #F3E5F5;
  --md-on-secondary: #FFFFFF;
  --md-on-secondary-container: #25132E;

  /* Tertiary */
  --md-tertiary: #8B5000;
  --md-tertiary-container: #FFE0B2;
  --md-on-tertiary: #FFFFFF;
  --md-on-tertiary-container: #2D1600;

  /* Error */
  --md-error: #BA1A1A;
  --md-error-container: #FFDAD6;
  --md-on-error: #FFFFFF;
  --md-on-error-container: #410002;

  /* Surface - High contrast light */
  --md-surface: #FFFBFF;
  --md-surface-dim: #DED8E0;
  --md-surface-bright: #FFFBFF;
  --md-surface-container-lowest: #FFFFFF;
  --md-surface-container-low: #F8F2FA;
  --md-surface-container: #F2ECF4;
  --md-surface-container-high: #ECE6EE;
  --md-surface-container-highest: #E6E0E8;

  /* On Surface */
  --md-on-surface: #1C1B1F;
  --md-on-surface-variant: #49454F;
  --md-outline: #7A757F;
  --md-outline-variant: #CBC4CF;

  /* Success */
  --md-success: #006D40;
  --md-success-container: #98F7BB;

  /* Macro colors - Darker for light theme */
  --color-calories: #006B8F;
  --color-protein: #7B1FA2;
  --color-carbs: #E65100;
  --color-fat: #C2185B;
  --color-sodium: #D84315;
  --color-fiber: #2E7D32;
  --color-sugar: #8E24AA;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-family);
  background: var(--md-surface-dim);
  color: var(--md-on-surface);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start;
  padding: 20px;
  line-height: 1.5;
}

/* ===== Mobile Container (Pixel 10 Pro Simulator) ===== */
.phone-container {
  width: 100%;
  max-width: 412px;
  min-height: 915px;
  background: var(--md-surface);
  border-radius: 28px;
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.5),
    0 12px 24px rgba(0, 0, 0, 0.3),
    0 0 0 1px rgba(255, 255, 255, 0.05),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
  overflow: hidden;
  position: relative;
  display: flex;
  flex-direction: column;
  /* Thin uniform bezels simulation */
  border: 3px solid #1a1a1a;
}

/* Hole-punch Camera (Pixel 10 Pro style) */
.phone-container::before {
  content: '';
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 12px;
  height: 12px;
  background: #000;
  border-radius: var(--shape-full);
  z-index: 100;
  box-shadow:
    0 0 0 2px #1a1a1a,
    inset 0 0 4px rgba(0, 0, 0, 0.8);
}

/* ===== M3 Typography Scale ===== */
.display-large {
  font-size: 3.5rem;
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.25px;
}

.display-medium {
  font-size: 2.8rem;
  font-weight: 400;
  line-height: 1.15;
}

.headline-large {
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.25;
}

.headline-medium {
  font-size: 1.75rem;
  font-weight: 600;
  line-height: 1.3;
}

.title-large {
  font-size: 1.375rem;
  font-weight: 600;
  line-height: 1.4;
}

.title-medium {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.5;
  letter-spacing: 0.15px;
}

.body-large {
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  letter-spacing: 0.5px;
}

.body-medium {
  font-size: 0.875rem;
  font-weight: 400;
  line-height: 1.43;
  letter-spacing: 0.25px;
}

.label-large {
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.43;
  letter-spacing: 0.1px;
}

.label-medium {
  font-size: 0.75rem;
  font-weight: 500;
  line-height: 1.33;
  letter-spacing: 0.5px;
}

/* ===== M3 Sticky Header ===== */
.sticky-header {
  position: sticky;
  top: 0;
  background: linear-gradient(180deg, var(--md-surface) 0%, var(--md-surface) 90%, transparent 100%);
  padding: 52px 24px 20px;
  z-index: 50;
}

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

.header-greeting {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  margin-bottom: 4px;
  font-weight: 500;
}

.header-title {
  font-size: 1.75rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--md-primary) 0%, var(--color-calories) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.calories-chip {
  background: var(--md-surface-container-high);
  border-radius: var(--shape-full);
  padding: 12px 20px;
  text-align: center;
  border: 1px solid var(--md-outline-variant);
}

.calories-value {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--md-primary);
  line-height: 1;
}

.calories-label {
  font-size: 0.625rem;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-top: 2px;
}

/* ===== M3 Date Navigation ===== */
.date-nav {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 16px;
  padding: 12px 20px;
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  margin: 0 24px 24px;
}

.date-nav button {
  background: var(--md-surface-container-high);
  border: none;
  color: var(--md-on-surface);
  width: 44px;
  height: 44px;
  border-radius: var(--shape-full);
  font-size: 1.25rem;
  cursor: pointer;
  transition: all var(--motion-duration-short) var(--motion-standard);
  display: flex;
  align-items: center;
  justify-content: center;
}

.date-nav button:hover {
  background: var(--md-primary);
  color: var(--md-on-primary);
  transform: scale(1.05);
}

.date-nav button:active {
  transform: scale(0.95);
}

.date-display {
  font-weight: 600;
  font-size: 1rem;
  min-width: 100px;
  text-align: center;
  color: var(--md-on-surface);
}

.today-btn {
  background: var(--md-primary) !important;
  color: var(--md-on-primary) !important;
  font-size: 0.75rem !important;
  font-weight: 600;
  padding: 0 16px !important;
  width: auto !important;
}

.today-btn:hover {
  background: var(--md-primary-container) !important;
  color: var(--md-on-primary-container) !important;
}

/* ===== M3 Progress Rings ===== */
.progress-section {
  display: flex;
  justify-content: space-around;
  padding: 16px 24px 24px;
  gap: 12px;
}

.progress-ring-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  flex: 1;
}

.progress-ring {
  position: relative;
  width: 88px;
  height: 88px;
  border-radius: var(--shape-full);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-surface-container);
  transition: transform var(--motion-duration-medium) var(--motion-emphasized);
}

.progress-ring:hover {
  transform: scale(1.05);
}

.progress-ring::before {
  content: '';
  position: absolute;
  inset: 5px;
  border-radius: var(--shape-full);
  background: var(--md-surface);
}

.progress-ring-inner {
  position: relative;
  z-index: 1;
  text-align: center;
}

.progress-ring-value {
  font-size: 1.25rem;
  font-weight: 700;
  line-height: 1.2;
}

.progress-ring-unit {
  font-size: 0.625rem;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  font-weight: 500;
}

.progress-ring-label {
  font-size: 0.6875rem;
  color: var(--md-on-surface-variant);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Ring colors - Expressive gradients */
.ring-calories {
  background: conic-gradient(var(--color-calories) var(--progress, 0%), var(--md-surface-container-high) 0%);
}

.ring-protein {
  background: conic-gradient(var(--color-protein) var(--progress, 0%), var(--md-surface-container-high) 0%);
}

.ring-carbs {
  background: conic-gradient(var(--color-carbs) var(--progress, 0%), var(--md-surface-container-high) 0%);
}

.ring-fat {
  background: conic-gradient(var(--color-fat) var(--progress, 0%), var(--md-surface-container-high) 0%);
}

/* ===== Content Area ===== */
.content {
  flex: 1;
  padding: 0 24px 120px;
  overflow-y: auto;
}

/* ===== M3 Meal Section ===== */
.meal-section {
  margin-bottom: 28px;
}

.meal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.meal-title {
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--md-on-surface);
}

.meal-title-icon {
  font-size: 1.375rem;
}

.meal-calories {
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
  font-weight: 500;
}

/* ===== M3 Food Cards ===== */
.food-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  margin-bottom: 10px;
  transition: all var(--motion-duration-short) var(--motion-standard);
  cursor: pointer;
  border: 1px solid transparent;
}

.food-card:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-outline-variant);
  transform: translateY(-2px);
  box-shadow: var(--elevation-2);
}

.food-icon {
  font-size: 2rem;
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--md-surface-container-highest);
  border-radius: var(--shape-md);
  flex-shrink: 0;
}

.food-info {
  flex: 1;
  min-width: 0;
}

.food-name {
  font-weight: 600;
  font-size: 0.9375rem;
  margin-bottom: 4px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--md-on-surface);
}

.verified-badge {
  color: var(--md-success);
  font-size: 0.875rem;
}

.food-meta {
  display: flex;
  gap: 14px;
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
}

.food-calories {
  font-weight: 700;
  color: var(--md-primary);
  font-size: 0.9375rem;
  white-space: nowrap;
}

.food-delete {
  background: none;
  border: none;
  color: var(--md-outline);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 10px;
  border-radius: var(--shape-full);
  transition: all var(--motion-duration-short) var(--motion-standard);
  display: flex;
  align-items: center;
  justify-content: center;
}

.food-delete:hover {
  color: var(--md-error);
  background: var(--md-error-container);
}

/* ===== M3 Empty State ===== */
.empty-state {
  text-align: center;
  padding: 36px 24px;
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  border: 2px dashed var(--md-outline-variant);
}

.empty-state-icon {
  font-size: 2.75rem;
  margin-bottom: 14px;
  opacity: 0.6;
}

.empty-state-text {
  color: var(--md-on-surface-variant);
  font-size: 0.9375rem;
  margin-bottom: 18px;
}

.copy-yesterday-btn {
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface);
  padding: 14px 28px;
  border-radius: var(--shape-full);
  font-size: 0.875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--motion-duration-short) var(--motion-standard);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.copy-yesterday-btn:hover {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border-color: var(--md-primary);
  transform: scale(1.02);
}

/* ===== M3 Extended FAB ===== */
.fab-container {
  position: fixed;
  bottom: 100px;
  right: calc(50% - 185px);
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
  z-index: 100;
}

.fab {
  width: 64px;
  height: 64px;
  border-radius: var(--shape-lg);
  background: var(--md-primary);
  border: none;
  color: var(--md-on-primary);
  font-size: 1.75rem;
  font-weight: 300;
  cursor: pointer;
  box-shadow: var(--elevation-3);
  transition: all var(--motion-duration-medium) var(--motion-emphasized);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
}

.fab:hover {
  transform: scale(1.05);
  box-shadow: var(--elevation-4);
}

.fab:active {
  transform: scale(0.95);
}

.fab.expanded {
  transform: rotate(45deg);
}

/* FAB Menu */
.fab-menu {
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  transform: translateY(20px) scale(0.8);
  pointer-events: none;
  transition: all var(--motion-duration-medium) var(--motion-emphasized);
}

.fab-menu.open {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}

.fab-menu-item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--md-surface-container-highest);
  padding: 14px 20px;
  border-radius: var(--shape-full);
  box-shadow: var(--elevation-2);
  cursor: pointer;
  text-decoration: none;
  color: var(--md-on-surface);
  transition: all var(--motion-duration-short) var(--motion-standard);
  white-space: nowrap;
}

.fab-menu-item:hover {
  background: var(--md-primary);
  color: var(--md-on-primary);
  transform: translateX(-8px);
}

.fab-menu-item-icon {
  font-size: 1.25rem;
}

.fab-menu-item-label {
  font-size: 0.875rem;
  font-weight: 600;
}

/* ===== M3 Bottom Navigation ===== */
.bottom-nav {
  position: fixed;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 412px;
  background: var(--md-surface-container);
  border-top: 1px solid var(--md-outline-variant);
  display: flex;
  justify-content: space-around;
  padding: 8px 20px 28px;
  z-index: 90;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-decoration: none;
  color: var(--md-on-surface-variant);
  font-size: 0.6875rem;
  font-weight: 500;
  transition: all var(--motion-duration-short) var(--motion-standard);
  padding: 8px 20px;
  border-radius: var(--shape-lg);
}

.nav-item:hover {
  color: var(--md-on-surface);
}

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

.nav-item.active .nav-item-icon {
  background: var(--md-primary-container);
  border-radius: var(--shape-full);
  padding: 4px 20px;
}

.nav-item-icon {
  font-size: 1.5rem;
  transition: all var(--motion-duration-short) var(--motion-standard);
}

/* ===== M3 Search Page ===== */
.search-header {
  padding: 52px 24px 20px;
  background: var(--md-surface);
}

.back-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: none;
  color: var(--md-primary);
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  padding: 8px 0;
  margin-bottom: 16px;
  transition: all var(--motion-duration-short) var(--motion-standard);
  text-decoration: none;
}

.back-button:hover {
  transform: translateX(-4px);
}

.search-box {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--md-surface-container-high);
  border-radius: var(--shape-full);
  padding: 16px 20px;
  border: 2px solid transparent;
  transition: all var(--motion-duration-short) var(--motion-standard);
}

.search-box:focus-within {
  border-color: var(--md-primary);
  box-shadow: 0 0 0 4px rgba(0, 191, 165, 0.15);
}

.search-icon {
  color: var(--md-on-surface-variant);
  font-size: 1.25rem;
}

.search-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--md-on-surface);
  font-size: 1rem;
  font-family: inherit;
  outline: none;
}

.search-input::placeholder {
  color: var(--md-outline);
}

.search-clear {
  background: none;
  border: none;
  color: var(--md-outline);
  font-size: 1.25rem;
  cursor: pointer;
  padding: 4px;
  display: none;
}

.search-clear.visible {
  display: block;
}

/* ===== Search Results ===== */
.search-results {
  padding: 20px 0;
}

.results-category {
  margin-bottom: 28px;
}

.results-category-title {
  font-size: 0.6875rem;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 14px;
  padding-left: 4px;
  font-weight: 600;
}

.search-result-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 16px;
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  margin-bottom: 8px;
  cursor: pointer;
  transition: all var(--motion-duration-short) var(--motion-standard);
  border: 1px solid transparent;
}

.search-result-item:hover {
  background: var(--md-surface-container-high);
  border-color: var(--md-primary);
  transform: scale(1.01);
}

.search-result-item:active {
  transform: scale(0.99);
}

.result-add-btn {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border: none;
  width: 40px;
  height: 40px;
  border-radius: var(--shape-full);
  font-size: 1.375rem;
  cursor: pointer;
  transition: all var(--motion-duration-short) var(--motion-standard);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.result-add-btn:hover {
  transform: scale(1.1);
  box-shadow: var(--elevation-2);
}

/* ===== M3 Form Inputs ===== */
.form-section {
  padding: 24px;
}

.form-group {
  margin-bottom: 24px;
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--md-on-surface-variant);
  margin-bottom: 10px;
  letter-spacing: 0.5px;
}

.form-input {
  width: 100%;
  padding: 16px 18px;
  background: var(--md-surface-container);
  border: 2px solid var(--md-outline-variant);
  border-radius: var(--shape-md);
  color: var(--md-on-surface);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--motion-duration-short) var(--motion-standard);
}

.form-input:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 4px rgba(0, 191, 165, 0.15);
}

.form-input.error {
  border-color: var(--md-error);
  box-shadow: 0 0 0 4px rgba(255, 138, 128, 0.15);
}

.form-warning {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
  padding: 14px;
  background: rgba(255, 138, 128, 0.1);
  border-radius: var(--shape-sm);
  color: var(--md-error);
  font-size: 0.8125rem;
  border-left: 3px solid var(--md-error);
}

.form-warning-icon {
  font-size: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.btn-primary {
  width: 100%;
  padding: 18px;
  background: var(--md-primary);
  border: none;
  border-radius: var(--shape-full);
  color: var(--md-on-primary);
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--motion-duration-short) var(--motion-standard);
  margin-top: 16px;
  letter-spacing: 0.5px;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-3);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-primary:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ===== M3 Settings Page ===== */
.settings-section {
  padding: 24px;
}

.settings-card {
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  padding: 24px;
  margin-bottom: 16px;
}

.settings-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--md-on-surface);
}

.settings-card-desc {
  font-size: 0.8125rem;
  color: var(--md-on-surface-variant);
  margin-bottom: 18px;
  line-height: 1.5;
}

.settings-input-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.settings-input {
  flex: 1;
  padding: 14px 18px;
  background: var(--md-surface-container-high);
  border: 2px solid var(--md-outline-variant);
  border-radius: var(--shape-md);
  color: var(--md-on-surface);
  font-size: 1.125rem;
  font-weight: 700;
  font-family: inherit;
  text-align: center;
  transition: all var(--motion-duration-short) var(--motion-standard);
}

.settings-input:focus {
  outline: none;
  border-color: var(--md-primary);
}

.settings-unit {
  color: var(--md-on-surface-variant);
  font-weight: 600;
}

.export-btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 20px 28px;
  background: linear-gradient(135deg, var(--md-secondary) 0%, var(--color-protein) 100%);
  border: none;
  border-radius: var(--shape-full);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--motion-duration-short) var(--motion-standard);
  letter-spacing: 0.5px;
}

.export-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--elevation-3);
}

.export-btn-icon {
  font-size: 1.5rem;
}

/* ===== M3 Nutrient Progress Bars ===== */
.nutrient-card {
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  padding: 20px;
  margin-bottom: 14px;
}

.nutrient-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}

.nutrient-name {
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--md-on-surface);
}

.nutrient-values {
  text-align: right;
}

.nutrient-current {
  font-size: 1.125rem;
  font-weight: 700;
}

.nutrient-goal {
  font-size: 0.75rem;
  color: var(--md-on-surface-variant);
}

.progress-bar {
  height: 10px;
  background: var(--md-surface-container-highest);
  border-radius: var(--shape-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  border-radius: var(--shape-full);
  transition: width var(--motion-duration-long) var(--motion-emphasized);
}

.progress-bar-fill.green {
  background: linear-gradient(90deg, #00C853, var(--md-success));
}

.progress-bar-fill.purple {
  background: linear-gradient(90deg, var(--md-secondary-container), var(--md-secondary));
}

.progress-bar-fill.orange {
  background: linear-gradient(90deg, #E65100, var(--md-tertiary));
}

.progress-bar-fill.red {
  background: linear-gradient(90deg, var(--md-error-container), var(--md-error));
}

.progress-bar-fill.warning {
  background: linear-gradient(90deg, var(--md-error-container), var(--md-error));
  animation: pulse-warning 1.5s infinite;
}

@keyframes pulse-warning {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.6;
  }
}

/* ===== M3 Toast Notifications ===== */
.toast-container {
  position: fixed;
  bottom: 110px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.toast {
  background: var(--md-surface-container-highest);
  border: 1px solid var(--md-outline-variant);
  border-radius: var(--shape-lg);
  padding: 16px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
  box-shadow: var(--elevation-3);
  pointer-events: auto;
  animation: toast-in var(--motion-duration-medium) var(--motion-emphasized);
  min-width: 300px;
}

.toast.toast-out {
  animation: toast-out var(--motion-duration-medium) var(--motion-emphasized) forwards;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }

  to {
    opacity: 0;
    transform: translateY(20px) scale(0.9);
  }
}

.toast-icon {
  font-size: 1.375rem;
}

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

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

.toast-message {
  flex: 1;
  font-size: 0.9375rem;
  font-weight: 500;
}

.toast-action {
  background: none;
  border: none;
  color: var(--md-primary);
  font-weight: 700;
  font-size: 0.875rem;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: var(--shape-sm);
  transition: all var(--motion-duration-short) var(--motion-standard);
}

.toast-action:hover {
  background: rgba(0, 191, 165, 0.15);
}

/* ===== Page Titles ===== */
.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--md-on-surface);
}

.page-subtitle {
  color: var(--md-on-surface-variant);
  font-size: 0.9375rem;
  margin-bottom: 24px;
}

/* ===== Meal/Date Selector ===== */
.meal-date-selector {
  background: var(--md-surface-container);
  border-radius: var(--shape-lg);
  padding: 18px;
  margin-bottom: 18px;
}

.selector-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.selector-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.selector-label {
  font-size: 0.6875rem;
  color: var(--md-on-surface-variant);
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 600;
}

.selector-dropdown {
  padding: 14px 16px;
  background: var(--md-surface-container-high);
  border: 2px solid var(--md-outline-variant);
  border-radius: var(--shape-md);
  color: var(--md-on-surface);
  font-size: 0.9375rem;
  font-family: inherit;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--motion-duration-short) var(--motion-standard);
  appearance: none;
  -webkit-appearance: none;
}

.selector-dropdown:focus {
  outline: none;
  border-color: var(--md-primary);
  box-shadow: 0 0 0 4px rgba(0, 191, 165, 0.15);
}

select.selector-dropdown {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23CAC4D0' d='M6 8L2 4h8z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}

input[type="date"].selector-dropdown {
  color-scheme: dark;
}

input[type="date"].selector-dropdown::-webkit-calendar-picker-indicator {
  filter: invert(0.8);
  cursor: pointer;
}

/* ===== Quick Add Modal ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--motion-duration-medium) var(--motion-standard);
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal {
  background: var(--md-surface-container);
  border-radius: var(--shape-xl);
  padding: 28px;
  width: 90%;
  max-width: 360px;
  transform: scale(0.9) translateY(20px);
  transition: transform var(--motion-duration-medium) var(--motion-emphasized);
}

.modal-overlay.open .modal {
  transform: scale(1) translateY(0);
}

.modal-title {
  font-size: 1.375rem;
  font-weight: 700;
  margin-bottom: 8px;
  text-align: center;
}

.modal-subtitle {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  text-align: center;
  margin-bottom: 24px;
}

.quick-add-input {
  width: 100%;
  padding: 20px;
  background: var(--md-surface-container-high);
  border: 2px solid var(--md-outline-variant);
  border-radius: var(--shape-lg);
  color: var(--md-on-surface);
  font-size: 2rem;
  font-weight: 700;
  font-family: inherit;
  text-align: center;
  margin-bottom: 12px;
  transition: all var(--motion-duration-short) var(--motion-standard);
}

.quick-add-input:focus {
  outline: none;
  border-color: var(--md-primary);
}

.quick-add-unit {
  text-align: center;
  color: var(--md-on-surface-variant);
  font-size: 0.875rem;
  margin-bottom: 24px;
}

.modal-actions {
  display: flex;
  gap: 12px;
}

.modal-btn {
  flex: 1;
  padding: 16px;
  border-radius: var(--shape-full);
  font-size: 0.9375rem;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--motion-duration-short) var(--motion-standard);
}

.modal-btn-secondary {
  background: var(--md-surface-container-high);
  border: 1px solid var(--md-outline-variant);
  color: var(--md-on-surface);
}

.modal-btn-secondary:hover {
  background: var(--md-surface-container-highest);
}

.modal-btn-primary {
  background: var(--md-primary);
  border: none;
  color: var(--md-on-primary);
}

.modal-btn-primary:hover {
  box-shadow: var(--elevation-2);
}

/* ===== Tooltips ===== */
.tooltip-trigger {
  position: relative;
  cursor: help;
  border-bottom: 1px dotted var(--md-outline);
}

.tooltip-trigger::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  background: var(--md-surface-container-highest);
  color: var(--md-on-surface);
  padding: 10px 14px;
  border-radius: var(--shape-sm);
  font-size: 0.75rem;
  font-weight: 500;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: all var(--motion-duration-short) var(--motion-standard);
  box-shadow: var(--elevation-2);
  z-index: 100;
  max-width: 200px;
  white-space: normal;
  text-align: center;
}

.tooltip-trigger:hover::after {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
  body {
    padding: 0;
  }

  .phone-container {
    border-radius: 0;
    max-width: 100%;
    box-shadow: none;
  }

  .phone-container::before {
    display: none;
  }

  .fab-container {
    right: 24px;
  }

  .bottom-nav {
    max-width: 100%;
  }
}

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

.text-primary {
  color: var(--md-primary);
}

.text-error {
  color: var(--md-error);
}

.text-warning {
  color: var(--md-tertiary);
}

.text-success {
  color: var(--md-success);
}

.mt-auto {
  margin-top: auto;
}

.mb-0 {
  margin-bottom: 0;
}

/* ===== Responsive (Real Mobile) ===== */
@media (max-width: 480px) {
  body {
    padding: 0;
  }

  .phone-container {
    border-radius: 0;
    max-width: 100%;
    min-height: 100vh;
    box-shadow: none;
    border: none;
  }

  .phone-container::before {
    display: none;
  }

  .fab-container {
    right: 24px;
  }

  .bottom-nav {
    max-width: 100%;
    border-radius: 0;
  }
}

/* ===== Barcode Scanner Button ===== */
.scan-btn {
  background: var(--md-primary);
  color: var(--md-on-primary);
  border: none;
  width: 48px;
  height: 48px;
  border-radius: var(--shape-md);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--motion-duration-short) var(--motion-standard);
  flex-shrink: 0;
}

.scan-btn:hover {
  transform: scale(1.05);
  box-shadow: var(--elevation-2);
}

.scan-btn:active {
  transform: scale(0.95);
}

/* ===== Theme Toggle Switch ===== */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
}

.theme-toggle-label {
  display: flex;
  align-items: center;
  gap: 12px;
}

.theme-toggle-icon {
  font-size: 1.5rem;
}

.toggle-switch {
  position: relative;
  width: 56px;
  height: 32px;
  background: var(--md-surface-container-highest);
  border-radius: var(--shape-full);
  cursor: pointer;
  transition: all var(--motion-duration-medium) var(--motion-standard);
  border: 2px solid var(--md-outline-variant);
}

.toggle-switch.active {
  background: var(--md-primary);
  border-color: var(--md-primary);
}

.toggle-switch::after {
  content: '';
  position: absolute;
  top: 4px;
  left: 4px;
  width: 20px;
  height: 20px;
  background: var(--md-on-surface);
  border-radius: var(--shape-full);
  transition: all var(--motion-duration-medium) var(--motion-emphasized);
}

.toggle-switch.active::after {
  left: 28px;
  background: var(--md-on-primary);
}

/* ===== PDF Preview Modal ===== */
.pdf-preview-modal {
  background: var(--md-surface-container);
  border-radius: var(--shape-xl);
  width: 90%;
  max-width: 380px;
  max-height: 80vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pdf-preview-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 24px;
  border-bottom: 1px solid var(--md-outline-variant);
}

.pdf-preview-title {
  font-size: 1.25rem;
  font-weight: 700;
}

.pdf-preview-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--md-on-surface-variant);
  cursor: pointer;
  padding: 4px;
}

.pdf-preview-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  background: var(--md-surface-container-low);
}

.pdf-preview-page {
  background: #fff;
  color: #1a1a1a;
  padding: 24px;
  border-radius: var(--shape-md);
  box-shadow: var(--elevation-2);
  font-size: 0.75rem;
  line-height: 1.6;
}

.pdf-preview-page h1 {
  font-size: 1rem;
  margin-bottom: 8px;
  color: #006b5e;
}

.pdf-preview-page h2 {
  font-size: 0.875rem;
  margin: 12px 0 6px;
  color: #333;
}

.pdf-preview-table {
  width: 100%;
  border-collapse: collapse;
  margin: 8px 0;
}

.pdf-preview-table th,
.pdf-preview-table td {
  padding: 6px 8px;
  text-align: left;
  border-bottom: 1px solid #e0e0e0;
}

.pdf-preview-table th {
  background: #f5f5f5;
  font-weight: 600;
}

.pdf-preview-footer {
  padding: 16px 24px;
  border-top: 1px solid var(--md-outline-variant);
  display: flex;
  gap: 12px;
}

/* ===== Smart Input Controls ===== */
.serving-controls {
  display: flex;
  gap: 12px;
  align-items: flex-end;
}

.serving-amount {
  flex: 1;
}

.serving-unit {
  flex: 1.5;
}

.amount-slider-container {
  margin-top: 8px;
}

.amount-slider {
  width: 100%;
  height: 6px;
  -webkit-appearance: none;
  appearance: none;
  background: var(--md-surface-container-highest);
  border-radius: var(--shape-full);
  outline: none;
}

.amount-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 24px;
  height: 24px;
  background: var(--md-primary);
  border-radius: var(--shape-full);
  cursor: pointer;
  box-shadow: var(--elevation-2);
  transition: transform var(--motion-duration-short) var(--motion-standard);
}

.amount-slider::-webkit-slider-thumb:hover {
  transform: scale(1.1);
}

.amount-slider::-moz-range-thumb {
  width: 24px;
  height: 24px;
  background: var(--md-primary);
  border-radius: var(--shape-full);
  cursor: pointer;
  border: none;
}

.amount-display {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--md-primary);
  margin-top: 8px;
}

/* ===== Swipe to Delete ===== */
.food-card {
  position: relative;
  overflow: hidden;
  touch-action: pan-y;
  user-select: none;
}

.food-card-content {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px;
  background: var(--md-surface-container);
  position: relative;
  z-index: 1;
  transition: transform var(--motion-duration-short) var(--motion-standard);
}

.food-card.swiping .food-card-content {
  transition: none;
}

.food-card-delete-bg {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100px;
  background: var(--md-error);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.5rem;
}

/* ===== Pull to Refresh ===== */
.pull-to-refresh {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-100%);
  transition: transform var(--motion-duration-medium) var(--motion-standard);
  z-index: 10;
}

.pull-to-refresh.visible {
  transform: translateY(0);
}

.pull-to-refresh-icon {
  font-size: 2rem;
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.pull-to-refresh-text {
  font-size: 0.875rem;
  color: var(--md-on-surface-variant);
  margin-left: 12px;
}

/* ===== Scan Modal ===== */
.scan-modal-content {
  background: var(--md-surface-container);
  border-radius: var(--shape-xl);
  width: 90%;
  max-width: 360px;
  padding: 32px 24px;
  text-align: center;
}

.scan-viewfinder {
  width: 200px;
  height: 200px;
  margin: 0 auto 24px;
  border: 3px solid var(--md-primary);
  border-radius: var(--shape-lg);
  position: relative;
  background: #000;
  overflow: hidden;
}

.scan-viewfinder::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--md-primary);
  animation: scan-line 2s ease-in-out infinite;
}

@keyframes scan-line {

  0%,
  100% {
    top: 10%;
  }

  50% {
    top: 90%;
  }
}

.scan-viewfinder-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  font-size: 4rem;
  opacity: 0.3;
}

.scan-instructions {
  color: var(--md-on-surface-variant);
  font-size: 0.9375rem;
  margin-bottom: 24px;
}

/* Light theme adjustments for scrollbar */
[data-theme="light"] .phone-container {
  border-color: #e0e0e0;
  box-shadow:
    0 25px 50px rgba(0, 0, 0, 0.15),
    0 12px 24px rgba(0, 0, 0, 0.1),
    0 0 0 1px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .phone-container::before {
  background: #333;
}