/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  /* Color Palette - Teal primary with warm neutrals */
  --color-background: #fcfcfc;
  --color-foreground: #1a1a1a;
  --color-card: #ffffff;
  --color-card-foreground: #1a1a1a;
  --color-primary: #14b8a6;
  --color-primary-foreground: #ffffff;
  --color-secondary: #f5f5f5;
  --color-secondary-foreground: #1a1a1a;
  --color-muted: #f8f8f8;
  --color-muted-foreground: #737373;
  --color-accent: #f59e0b;
  --color-accent-foreground: #ffffff;
  --color-border: #e5e5e5;
  --color-input: #e5e5e5;
  --color-ring: #14b8a6;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Border Radius */
  --radius: 0.75rem;
  --radius-sm: 0.5rem;
  --radius-lg: 1rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
}

html {
  overflow-x: hidden;
  width: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background-color: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

a {
    text-decoration: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  width: 100%;
  box-sizing: border-box;
}

/* Header */
.header {
  background-color: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  position: sticky;
  top: 0;
  z-index: 100;
}

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

.logo {
  max-width: 100%;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
}

.nav {
  display: flex;
  gap: var(--spacing-md);
}

.nav-link {
  text-decoration: none;
  color: var(--color-muted-foreground);
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.nav-link:hover {
  color: var(--color-foreground);
  background-color: var(--color-muted);
}

.nav-link.active {
  color: var(--color-primary);
  background-color: var(--color-secondary);
}

/* Main Content */
.main {
  padding: var(--spacing-2xl) 0;
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  box-sizing: border-box;
}

/* Hero Section */
.hero {
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

.hero-title {
  font-size: 2.5rem;
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--color-foreground);
}

.hero-description {
  font-size: 1.125rem;
  color: var(--color-muted-foreground);
  max-width: 600px;
  margin: 0 auto;
}

/* Card Component */
.card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

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

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
}

.card-content {
  padding: var(--spacing-lg);
}

/* Calculator Grid */
.calculator-section {
  margin-bottom: var(--spacing-2xl);
}

.calculator-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow-x: hidden;
}

@media (min-width: 1024px) {
  .calculator-grid {
    grid-template-columns: 2fr 1fr;
  }
}

.calculator-main {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.calculator-sidebar {
  width: 100%;
  max-width: 100%;
  min-width: 0;
  box-sizing: border-box;
}

.calculator-sidebar .sticky {
  position: sticky;
  top: 6rem;
}

/* Search Input */
.search-wrapper {
  position: relative;
  margin-bottom: var(--spacing-md);
}

.search-icon {
  position: absolute;
  left: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-muted-foreground);
}

.search-input {
  width: 100%;
  padding: 0.625rem 0.75rem 0.625rem 2.5rem;
  border: 1px solid var(--color-input);
  border-radius: var(--radius);
  font-size: 0.875rem;
  background-color: var(--color-card);
  transition: all 0.2s;
}

.search-input:focus {
  outline: none;
  border-color: var(--color-ring);
  box-shadow: 0 0 0 3px rgba(20, 184, 166, 0.1);
}

/* Alphabet Filter */
.alphabet-filter {
  display: flex;
  flex-wrap: wrap;
  gap: 0.25rem;
  margin-bottom: var(--spacing-md);
}

.alphabet-btn {
  width: 2rem;
  height: 2rem;
  padding: 0;
  border: 1px solid var(--color-border);
  background-color: var(--color-card);
  color: var(--color-foreground);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.alphabet-btn:hover {
  background-color: var(--color-muted);
}

.alphabet-btn.active {
  background-color: var(--color-primary);
  color: var(--color-primary-foreground);
  border-color: var(--color-primary);
}

/* Food List */
.food-list {
  max-height: 24rem;
  overflow-y: auto;
  overflow-x: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--spacing-md);
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
}

.food-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: var(--spacing-sm);
  border-radius: var(--radius-sm);
  transition: background-color 0.2s;
}

.food-item:hover {
  background-color: var(--color-muted);
}

.food-checkbox {
  width: 1rem;
  height: 1rem;
  cursor: pointer;
  accent-color: var(--color-primary);
}

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

.food-name {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.food-details {
  font-size: 0.75rem;
  color: var(--color-muted-foreground);
}

.quantity-input {
  width: 4rem;
  height: 2rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--color-input);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  text-align: center;
}

.loading-text,
.empty-text {
  text-align: center;
  padding: var(--spacing-xl) 0;
  color: var(--color-muted-foreground);
  font-size: 0.875rem;
}

/* Selected Foods */
.selected-foods-list {
  max-height: 16rem;
  overflow-y: auto;
  margin-bottom: var(--spacing-md);
}

.selected-food-item {
  display: flex;
  align-items: start;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm);
  background-color: var(--color-muted);
  border-radius: var(--radius-sm);
  margin-bottom: var(--spacing-sm);
}

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

.selected-food-name {
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.selected-food-details {
  font-size: 0.75rem;
  color: var(--color-muted-foreground);
}

.remove-btn {
  width: 1.5rem;
  height: 1.5rem;
  padding: 0;
  border: none;
  background: transparent;
  color: var(--color-muted-foreground);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
}

.remove-btn:hover {
  background-color: var(--color-secondary);
  color: var(--color-foreground);
}

/* Total Section */
.total-section {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.total-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.total-label {
  font-size: 0.875rem;
  font-weight: 500;
}

.total-badge {
  background-color: var(--color-primary);
  color: var(--color-primary-foreground);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius);
  font-size: 1.125rem;
  font-weight: 600;
}

/* Buttons */
.btn-primary {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  background-color: var(--color-primary);
  color: var(--color-primary-foreground);
  border: none;
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary:hover {
  background-color: #0d9488;
}

.btn-outline {
  display: inline-block;
  padding: 0.625rem 1.25rem;
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
  border-radius: var(--radius);
  font-size: 0.875rem;
  font-weight: 500;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
}

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

.btn-ghost {
  padding: 0.5rem 0.75rem;
  background-color: transparent;
  color: var(--color-muted-foreground);
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-ghost:hover {
  background-color: var(--color-muted);
  color: var(--color-foreground);
}

.btn-sm {
  font-size: 0.75rem;
  padding: 0.375rem 0.625rem;
}

/* Featured Post */
.featured-post {
  margin-bottom: var(--spacing-2xl);
}

.featured-card {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0d9488 100%);
  border: none;
  color: white;
}

.featured-content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  padding: var(--spacing-xl);
}

@media (min-width: 768px) {
  .featured-content {
    grid-template-columns: 1fr 1fr;
    align-items: center;
  }
}

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

.featured-badge {
  display: inline-block;
  width: fit-content;
  padding: 0.25rem 0.75rem;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.featured-title {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.2;
}

.featured-description {
  font-size: 1rem;
  opacity: 0.9;
  line-height: 1.6;
}

.featured-image {
  border-radius: var(--radius);
  overflow: hidden;
}

.featured-image img {
  width: 100%;
  height: auto;
  display: block;
}

/* Blog Section */
.blog-preview {
  margin-bottom: var(--spacing-2xl);
}

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

.section-title {
  font-size: 1.875rem;
  font-weight: 700;
}

.blog-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
}

@media (min-width: 768px) {
  .blog-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .blog-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.blog-card {
  background-color: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all 0.2s;
  cursor: pointer;
}

.blog-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.blog-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.blog-content {
  padding: var(--spacing-lg);
}

.blog-category {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  background-color: var(--color-secondary);
  color: var(--color-primary);
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
}

.blog-title {
  font-size: 1.125rem;
  color: #333;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
  line-height: 1.4;
}

.blog-excerpt {
  font-size: 0.875rem;
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

/* Blog card links */
.blog-card a {
  text-decoration: none;
  color: inherit;
  display: block;
}

.blog-card a:hover .blog-title {
  color: var(--color-primary);
}

/* Footer */
.footer {
  background-color: var(--color-card);
  border-top: 1px solid var(--color-border);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-2xl);
}

.footer-text {
  text-align: center;
  color: var(--color-muted-foreground);
  font-size: 0.875rem;
}

/* Responsive Typography */
@media (max-width: 768px) {
  .hero-title {
    font-size: 2rem;
  }

  .featured-title {
    font-size: 1.5rem;
  }

  .section-title {
    font-size: 1.5rem;
  }
}

/* Scrollbar Styling */
.food-list::-webkit-scrollbar,
.selected-foods-list::-webkit-scrollbar {
  width: 8px;
}

.food-list::-webkit-scrollbar-track,
.selected-foods-list::-webkit-scrollbar-track {
  background: var(--color-muted);
  border-radius: var(--radius);
}

.food-list::-webkit-scrollbar-thumb,
.selected-foods-list::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius);
}

.food-list::-webkit-scrollbar-thumb:hover,
.selected-foods-list::-webkit-scrollbar-thumb:hover {
  background: var(--color-muted-foreground);
}