:root {
  --primary-50: #f0fdf4;
  --primary-100: #dcfce7;
  --primary-500: #22c55e;
  --primary-600: #16a34a;
  --primary-700: #15803d;
  --primary-800: #166534;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-300: #cbd5e1;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-900: #0f172a;
  --shadow-lg: 0 10px 20px rgba(15, 23, 42, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--gray-900);
  background: #fff;
}

a {
  color: inherit;
  text-decoration: none;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 255, 255, 0.95);
  border-bottom: 1px solid var(--gray-200);
  backdrop-filter: blur(12px);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 20px;
}

.logo-badge {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-600);
  color: #fff;
  border-radius: 10px;
  font-weight: 700;
}

.nav-links {
  display: flex;
  gap: 18px;
  align-items: center;
}

.nav-links a {
  color: var(--gray-700);
  font-weight: 600;
  font-size: 14px;
}

.nav-cta {
  padding: 10px 16px;
  border-radius: 10px;
  background: var(--primary-600);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
}

.mobile-menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.mobile-menu-toggle span {
  width: 24px;
  height: 3px;
  background: var(--gray-700);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-toggle.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.hero {
  background: linear-gradient(135deg, var(--primary-50), #fff);
  padding: 80px 0 40px;
  text-align: center;
}

.hero h1 {
  font-size: 48px;
  margin-bottom: 16px;
}

.hero p {
  font-size: 18px;
  color: var(--gray-600);
  max-width: 760px;
  margin: 0 auto 28px;
}

.hero-tags {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  color: var(--gray-600);
}

.section {
  padding: 60px 0;
}

.section-title {
  text-align: center;
  margin-bottom: 32px;
}

.section-title h2 {
  font-size: 32px;
  margin: 0 0 10px;
}

.section-title p {
  color: var(--gray-600);
  margin: 0;
}

.search-box {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 18px;
  border: 2px solid var(--gray-200);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  background: #fff;
}

.search-box input {
  border: none;
  outline: none;
  width: 100%;
  font-size: 16px;
}

.recent-searches {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  color: var(--gray-600);
  font-size: 13px;
}

.recent-searches button {
  border: none;
  background: var(--gray-100);
  padding: 6px 12px;
  border-radius: 999px;
  cursor: pointer;
}

.results-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin: 24px 0 16px;
}

.results-grid,
.popular-grid,
.blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.card {
  border: 2px solid var(--gray-200);
  border-radius: 16px;
  padding: 16px;
  background: #fff;
}

.card h3 {
  margin: 0 0 6px;
  font-size: 18px;
}

.card .badge {
  display: inline-flex;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--gray-100);
  color: var(--gray-700);
  font-size: 12px;
  font-weight: 600;
}

.card .net-carbs {
  margin: 12px 0;
  padding: 12px;
  border-radius: 12px;
  border: 2px solid #bbf7d0;
  background: #f0fdf4;
  color: #166534;
}

.card .net-carbs.medium {
  border-color: #fde68a;
  background: #fffbeb;
  color: #b45309;
}

.card .net-carbs.high {
  border-color: #fdba74;
  background: #fff7ed;
  color: #c2410c;
}

.card .grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.stat {
  background: var(--gray-100);
  padding: 10px;
  border-radius: 10px;
  font-size: 13px;
  color: var(--gray-700);
}

.stat strong {
  display: block;
  font-size: 16px;
  color: var(--gray-900);
}

.serving-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 10px;
}

.serving-row input {
  width: 70px;
  padding: 6px 8px;
  border: 1px solid var(--gray-300);
  border-radius: 8px;
}

.cta-banner {
  background: linear-gradient(135deg, var(--primary-600), var(--primary-800));
  color: #fff;
  padding: 26px;
  border-radius: 18px;
  text-align: center;
}

.footer {
  background: var(--gray-50);
  border-top: 1px solid var(--gray-200);
  padding: 40px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 24px;
}

.footer h4 {
  margin: 0 0 12px;
}

.footer a {
  display: block;
  color: var(--gray-600);
  margin-bottom: 8px;
  font-size: 14px;
}

.notice {
  padding: 10px 12px;
  border-radius: 10px;
  background: #eff6ff;
  color: #1e40af;
  font-size: 13px;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.4);
  display: none;
  align-items: center;
  justify-content: center;
  z-index: 40;
}

.modal-content {
  background: #fff;
  padding: 20px;
  border-radius: 16px;
  width: 100%;
  max-width: 520px;
}

.modal-content h3 {
  margin-top: 0;
}

.modal-content input,
.modal-content textarea {
  width: 100%;
  padding: 10px 12px;
  margin-bottom: 10px;
  border-radius: 10px;
  border: 1px solid var(--gray-300);
}

.modal-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

.btn {
  border: none;
  border-radius: 10px;
  padding: 10px 16px;
  font-weight: 600;
  cursor: pointer;
}

.btn-primary {
  background: var(--primary-600);
  color: #fff;
}

.btn-secondary {
  background: var(--gray-100);
  color: var(--gray-700);
}

/* Modern form styles for request-feature page */
form input[type="text"],
form input[type="email"],
form select,
form textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  font-family: inherit;
  font-size: 15px;
  transition: all 0.2s ease;
  background: #fff;
  color: var(--gray-900);
}

form select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 16 16'%3E%3Cpath fill='%23475569' d='M4.427 6.427l3.396 3.396a.25.25 0 00.354 0l3.396-3.396A.25.25 0 0011.396 6H4.604a.25.25 0 00-.177.427z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

form input[type="text"]:focus,
form input[type="email"]:focus,
form select:focus,
form textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.1);
}

form input[type="text"]::placeholder,
form input[type="email"]::placeholder,
form textarea::placeholder {
  color: #94a3b8;
}

form textarea {
  resize: vertical;
  min-height: 100px;
  font-family: inherit;
}

form label {
  display: block;
  margin-bottom: 6px;
  margin-top: 16px;
  font-weight: 600;
  font-size: 14px;
  color: var(--gray-700);
}

form label:first-of-type {
  margin-top: 0;
}

.tracker-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.tracker-form input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--gray-200);
  border-radius: 10px;
  background: #fff;
  font-size: 14px;
  color: var(--gray-900);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.tracker-form .form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 10px;
}

.tracker-form .form-actions {
  display: flex;
  gap: 10px;
  justify-content: flex-start;
}

.tracker-form input:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}

.tracker-form input::placeholder {
  color: #94a3b8;
}

.tracker-form .btn {
  padding: 8px 14px;
  font-size: 14px;
}

.page-hero {
  padding: 50px 0 30px;
  background: var(--gray-50);
  border-bottom: 1px solid var(--gray-200);
}

.page-hero h1 {
  margin: 0 0 10px;
}

.article-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.article-card {
  border: 2px solid var(--gray-200);
  border-radius: 16px;
  padding: 16px;
  background: #fff;
}

.article-card h3 {
  margin: 6px 0 10px;
}

.small {
  font-size: 13px;
  color: var(--gray-600);
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: flex;
  }
  
  .nav-links {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--gray-200);
    flex-direction: column;
    gap: 0;
    padding: 12px 0;
    box-shadow: 0 8px 16px rgba(0,0,0,0.1);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-links a {
    padding: 14px 20px;
    width: 100%;
    border-bottom: 1px solid var(--gray-100);
  }
  
  .nav-links a:last-child {
    border-bottom: none;
  }
  
  .nav-cta {
    margin: 8px auto;
    text-align: center;
    width: calc(100% - 60px);
    max-width: 280px;
  }
  
  .hero h1 {
    font-size: 32px;
  }
  
  .hero p {
    font-size: 16px;
  }
  
  .hero-tags {
    font-size: 14px;
  }
  
  .section {
    padding: 40px 0;
  }
  
  .section-title h2 {
    font-size: 26px;
  }
  
  .results-grid,
  .popular-grid {
    grid-template-columns: 1fr;
  }
  
  .blog-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  
  .card h3 {
    font-size: 18px;
  }
}

@media (max-width: 900px) {
  .hero h1 {
    font-size: 36px;
  }
}

/* Scroll to top button */
.scroll-to-top {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-500);
  color: white;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all 0.3s ease;
  z-index: 100;
}

.scroll-to-top:hover {
  background: var(--primary-600);
  transform: translateY(0) scale(1.05);
}

.scroll-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

@media (max-width: 768px) {
  .scroll-to-top {
    bottom: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
  }
}