:root {
  --primary: #10b981;
  --primary-light: #34d399;
  --primary-dark: #059669;
  --primary-surface: #ecfdf5;
  --calorie: #f59e0b;
  --protein: #3b82f6;
  --carbs: #f97316;
  --fat: #a855f7;
  --bg: #fafafa;
  --bg-card: #ffffff;
  --text: #171717;
  --text-secondary: #525252;
  --text-muted: #737373;
  --border: #e5e5e5;
  --shadow: 0 4px 24px rgba(16, 185, 129, 0.08);
  --radius: 16px;
  --max-width: 960px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary: #34d399;
    --primary-light: #6ee7b7;
    --primary-dark: #10b981;
    --primary-surface: #1f2e2a;
    --bg: #0a0a0a;
    --bg-card: #1c1c1e;
    --text: #f5f5f5;
    --text-secondary: #c4c4c8;
    --text-muted: #aeaeb2;
    --border: #3a3a3c;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.35);
  }
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* Nav */
.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 85%, transparent);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-nav .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
}

.brand:hover { text-decoration: none; }

.brand img {
  width: 36px;
  height: 36px;
  border-radius: 9px;
}

.nav-links {
  display: flex;
  gap: 8px;
  list-style: none;
  flex-wrap: wrap;
}

.nav-links a {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: background 0.2s, color 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  background: var(--primary-surface);
  color: var(--primary);
  text-decoration: none;
}

/* Hero */
.hero {
  padding: 72px 0 56px;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, color-mix(in srgb, var(--primary) 18%, transparent), transparent),
    var(--bg);
  text-align: center;
}

.hero-icon {
  width: 96px;
  height: 96px;
  border-radius: 22px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.hero h1 span {
  background: linear-gradient(135deg, var(--primary-light), var(--primary-dark));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero .tagline {
  font-size: 1.2rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 32px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  margin-bottom: 36px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
}

.cta-row {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}

.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary-light), var(--primary));
  color: #fff;
  box-shadow: 0 8px 24px color-mix(in srgb, var(--primary) 35%, transparent);
}

.btn-secondary {
  background: var(--bg-card);
  color: var(--text);
  border: 1px solid var(--border);
}

/* Sections */
section { padding: 56px 0; }

.section-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  text-align: center;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  margin-bottom: 40px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow);
  transition: border-color 0.2s;
}

.feature-card:hover { border-color: color-mix(in srgb, var(--primary) 40%, var(--border)); }

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 16px;
}

.feature-icon.green { background: color-mix(in srgb, var(--primary) 15%, transparent); }
.feature-icon.amber { background: color-mix(in srgb, var(--calorie) 15%, transparent); }
.feature-icon.blue { background: color-mix(in srgb, var(--protein) 15%, transparent); }
.feature-icon.orange { background: color-mix(in srgb, var(--carbs) 15%, transparent); }
.feature-icon.purple { background: color-mix(in srgb, var(--fat) 15%, transparent); }

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 650;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Stats strip */
.stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 48px;
}

.stat {
  text-align: center;
  padding: 20px;
  background: var(--bg-card);
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

.stat .num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
}

.stat .label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* Content pages */
.page-header {
  padding: 48px 0 32px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
}

.page-header p {
  color: var(--text-muted);
  font-size: 1.05rem;
}

.legal-section {
  margin-bottom: 36px;
}

.legal-section h2 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}

.legal-section p, .legal-section li {
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.legal-section ul {
  padding-left: 1.25rem;
  margin-bottom: 12px;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 16px;
}

.faq-item h3 {
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 8px;
}

.faq-item p { color: var(--text-secondary); font-size: 0.95rem; }

.contact-card {
  background: var(--primary-surface);
  border: 1px solid color-mix(in srgb, var(--primary) 25%, var(--border));
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  margin-top: 40px;
}

.contact-card h3 { margin-bottom: 8px; }

.contact-card p { color: var(--text-secondary); margin-bottom: 16px; }

.lang-toggle {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-bottom: 32px;
}

.lang-toggle button {
  padding: 8px 20px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
}

.lang-toggle button.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

[lang-content] { display: none; }
[lang-content].active { display: block; }

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
  margin-top: 56px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.footer-links {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer-links a { color: var(--text-secondary); font-weight: 500; }

@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero { padding: 48px 0 40px; }
}