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

:root {
  --green: #1BDB74;
  --green-dark: #14b85e;
  --black: #000;
  --white: #fff;
  --gray-50: #f5f5f7;
  --gray-100: #e8e8ed;
  --gray-400: #86868b;
  --gray-700: #1d1d1f;
  --font: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--gray-700);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }
.green { color: var(--green); }

/* ===== NAV ===== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0,0,0,0.08);
}
.nav-inner {
  max-width: 1100px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px; height: 48px;
}
.nav-logo {
  font-size: 20px; font-weight: 700; color: var(--gray-700);
  letter-spacing: -0.5px;
}
.nav-links {
  display: flex; gap: 32px;
}
.nav-links a {
  font-size: 13px; color: var(--gray-700);
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--green); }
.nav-cta {
  font-size: 13px; font-weight: 500;
  background: var(--green); color: #fff;
  padding: 7px 16px; border-radius: 20px;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--green-dark); }

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: 120px 24px 80px;
  background: linear-gradient(180deg, #fff 0%, #f5f5f7 100%);
}
.hero-badge {
  display: inline-block;
  font-size: 13px; font-weight: 500;
  color: var(--gray-400);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.hero-title {
  font-size: clamp(52px, 8vw, 96px);
  font-weight: 700;
  letter-spacing: -2px;
  line-height: 1.05;
  color: var(--gray-700);
  margin-bottom: 24px;
}
.hero-sub {
  font-size: clamp(18px, 2.5vw, 24px);
  color: var(--gray-400);
  line-height: 1.6;
  max-width: 520px;
  margin-bottom: 40px;
}
.hero-btns {
  display: flex; gap: 16px; justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 80px;
}
.btn-primary {
  background: var(--green); color: #fff;
  font-size: 17px; font-weight: 600;
  padding: 16px 32px; border-radius: 30px;
  transition: background 0.2s, transform 0.15s;
}
.btn-primary:hover { background: var(--green-dark); transform: scale(1.02); }
.btn-ghost {
  background: transparent; color: var(--gray-700);
  font-size: 17px; font-weight: 500;
  padding: 16px 32px; border-radius: 30px;
  border: 1.5px solid var(--gray-100);
  transition: border-color 0.2s, transform 0.15s;
}
.btn-ghost:hover { border-color: var(--green); color: var(--green); }

/* ===== PHONE MOCKUPS ===== */
.hero-mockups {
  display: flex; align-items: flex-end; justify-content: center;
  gap: 20px; margin-top: 0;
}
.hero-mockup { perspective: 1200px; }
.mockup-left .phone-frame  { transform: rotateY(12deg) rotateX(2deg) scale(0.88); }
.mockup-center .phone-frame { transform: rotateX(3deg); }
.mockup-right .phone-frame  { transform: rotateY(-12deg) rotateX(2deg) scale(0.88); }
.mockup-left, .mockup-right { opacity: 0.82; }

.phone-frame {
  width: 220px; height: 460px;
  background: #1a1a1a;
  border-radius: 38px;
  padding: 12px;
  box-shadow: 0 50px 100px rgba(0,0,0,0.28), 0 0 0 1px rgba(255,255,255,0.08) inset;
  transition: transform 0.4s ease;
}
.phone-frame:hover { transform: rotateX(0deg) rotateY(0deg) scale(1) !important; opacity: 1 !important; }
.phone-screen {
  width: 100%; height: 100%;
  background: #fff;
  border-radius: 28px;
  overflow: hidden;
}
.app-preview {
  padding: 14px 12px;
  display: flex; flex-direction: column; gap: 8px;
  height: 100%; overflow: hidden;
}

/* App UI elements */
.app-topbar {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 4px;
}
.app-greeting { font-size: 13px; font-weight: 700; color: #111827; }
.app-avatar { font-size: 18px; }
.app-back { font-size: 10px; color: var(--green); }
.app-pagetitle { font-size: 11px; font-weight: 700; color: #111827; }

/* Calorie bar */
.app-calorie-bar {
  background: linear-gradient(135deg, #f0fdf4, #dcfce7);
  border-radius: 12px; padding: 10px 12px;
  border: 1px solid #bbf7d0;
}
.calorie-info { display: flex; align-items: baseline; gap: 4px; margin-bottom: 6px; }
.calorie-num { font-size: 18px; font-weight: 800; color: var(--green); }
.calorie-label { font-size: 9px; color: #6b7280; }
.calorie-progress {
  height: 4px; background: #d1fae5; border-radius: 4px; margin-bottom: 4px;
}
.calorie-fill { height: 100%; background: var(--green); border-radius: 4px; }
.calorie-remain { font-size: 9px; color: #6b7280; }

.app-section-title { font-size: 11px; font-weight: 700; color: #111827; margin-top: 2px; }

.recipe-card {
  display: flex; align-items: center; gap: 8px;
  background: #f9fafb; border-radius: 10px; padding: 8px 10px;
  border: 1px solid #f0f0f0;
}
.recipe-emoji { font-size: 22px; }
.recipe-info { flex: 1; }
.recipe-name { font-size: 10px; font-weight: 600; color: #111827; }
.recipe-meta { font-size: 8px; color: #9ca3af; margin-top: 1px; }
.recipe-heart { font-size: 12px; }

.ai-btn {
  background: var(--green); color: #fff;
  text-align: center; border-radius: 16px;
  padding: 8px; font-size: 10px; font-weight: 600;
  margin-top: 2px;
}

/* Recipe detail screen */
.recipe-hero-emoji { font-size: 44px; text-align: center; margin: 4px 0; }
.recipe-big-name { font-size: 12px; font-weight: 700; color: #111827; text-align: center; margin-bottom: 6px; }
.recipe-tags { display: flex; gap: 4px; flex-wrap: wrap; justify-content: center; margin-bottom: 8px; }
.tag {
  font-size: 8px; font-weight: 600;
  background: #f0fdf4; color: var(--green);
  border: 1px solid #bbf7d0; border-radius: 8px; padding: 2px 7px;
}
.nutrition-row {
  display: flex; gap: 4px; justify-content: space-between;
  background: #f9fafb; border-radius: 10px; padding: 8px 6px;
  margin-bottom: 8px;
}
.nutrition-item { text-align: center; flex: 1; }
.n-val { font-size: 11px; font-weight: 700; color: #111827; }
.n-lbl { font-size: 7px; color: #9ca3af; }
.ingredient-list { display: flex; flex-direction: column; gap: 4px; }
.ingredient-item {
  font-size: 9px; color: #374151;
  background: #f9fafb; border-radius: 6px; padding: 5px 8px;
}

/* AI customize screen */
.ai-label { font-size: 9px; font-weight: 700; color: #6b7280; margin-top: 4px; margin-bottom: 3px; }
.chip-row { display: flex; gap: 4px; flex-wrap: wrap; }
.chip {
  font-size: 9px; padding: 3px 8px; border-radius: 10px;
  background: #f3f4f6; color: #6b7280; border: 1px solid #e5e7eb;
}
.chip-active { background: #f0fdf4; color: var(--green); border-color: #bbf7d0; font-weight: 600; }
.chip-premium {
  background: #fefce8; color: #d97706;
  border-color: #fde68a; font-weight: 600;
}
.ai-input-mock {
  font-size: 9px; color: #9ca3af;
  background: #f9fafb; border: 1px solid #e5e7eb;
  border-radius: 8px; padding: 6px 8px; margin-top: 4px;
}
.ai-generate-btn {
  margin-top: 6px;
  background: linear-gradient(135deg, var(--green), #0ea672);
  color: #fff; text-align: center;
  border-radius: 14px; padding: 9px;
  font-size: 10px; font-weight: 700;
}

/* ===== SECTIONS COMMON ===== */
.section-inner {
  max-width: 1100px; margin: 0 auto; padding: 0 24px;
}
.section-eyebrow {
  font-size: 13px; font-weight: 600;
  color: var(--green); letter-spacing: 0.08em;
  text-transform: uppercase; margin-bottom: 12px;
}
.section-title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700; letter-spacing: -1px;
  line-height: 1.1; color: var(--gray-700);
  margin-bottom: 48px;
}

/* ===== FEATURES ===== */
.features {
  padding: 120px 0;
  background: var(--white);
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.feature-card {
  background: var(--gray-50);
  border-radius: 20px; padding: 36px 32px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.08);
}
.feature-icon { font-size: 36px; margin-bottom: 16px; }
.feature-card h3 {
  font-size: 20px; font-weight: 700;
  color: var(--gray-700); margin-bottom: 10px;
}
.feature-card p {
  font-size: 15px; color: var(--gray-400); line-height: 1.6;
}

/* ===== PRICING ===== */
.pricing {
  padding: 120px 0;
  background: var(--gray-50);
}
.pricing-grid {
  display: flex; gap: 24px; justify-content: center; flex-wrap: wrap;
}
.plan-card {
  background: #fff; border-radius: 24px; padding: 40px 36px;
  width: 320px; border: 1.5px solid var(--gray-100);
  position: relative; transition: transform 0.2s, box-shadow 0.2s;
}
.plan-card:hover { transform: translateY(-4px); box-shadow: 0 20px 50px rgba(0,0,0,0.08); }
.plan-featured {
  border-color: var(--green);
  box-shadow: 0 0 0 1px var(--green), 0 20px 50px rgba(27,219,116,0.15);
}
.plan-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--green); color: #fff;
  font-size: 12px; font-weight: 700;
  padding: 5px 14px; border-radius: 20px; white-space: nowrap;
}
.plan-name { font-size: 20px; font-weight: 700; color: var(--gray-700); margin-bottom: 12px; }
.plan-price { font-size: 48px; font-weight: 700; color: var(--gray-700); letter-spacing: -1px; }
.plan-period { font-size: 14px; color: var(--gray-400); margin-bottom: 28px; }
.plan-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 32px; }
.plan-features li { font-size: 15px; color: var(--gray-700); }
.btn-plan-primary {
  display: block; text-align: center;
  background: var(--green); color: #fff;
  font-size: 16px; font-weight: 600;
  padding: 14px; border-radius: 14px;
  transition: background 0.2s;
}
.btn-plan-primary:hover { background: var(--green-dark); }
.btn-plan-ghost {
  display: block; text-align: center;
  background: transparent; color: var(--gray-700);
  font-size: 16px; font-weight: 600;
  padding: 14px; border-radius: 14px;
  border: 1.5px solid var(--gray-100);
  transition: border-color 0.2s;
}
.btn-plan-ghost:hover { border-color: var(--green); color: var(--green); }

/* ===== ABOUT ===== */
.about { padding: 120px 0; background: var(--white); }
.about-inner {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.presented-by {
  font-size: 12px; font-weight: 500;
  color: var(--gray-400); letter-spacing: 0.06em;
  text-transform: uppercase; margin-bottom: 24px;
  margin-top: -36px;
}
.about-desc {
  font-size: 17px; color: var(--gray-400); line-height: 1.7; margin-bottom: 20px;
}
.about-stats {
  display: grid; grid-template-columns: 1fr 1fr; gap: 32px;
}
.stat {
  background: var(--gray-50); border-radius: 20px; padding: 32px 24px;
  text-align: center;
}
.stat-num {
  font-size: 40px; font-weight: 700; color: var(--green);
  letter-spacing: -1px; margin-bottom: 6px;
}
.stat-label { font-size: 13px; color: var(--gray-400); }

/* ===== PRIVACY ===== */
.privacy-section { padding: 120px 0; background: var(--gray-50); }
.legal-content {
  background: #fff; border-radius: 20px; padding: 40px 40px;
  border: 1px solid var(--gray-100); margin-bottom: 24px;
}
.legal-content h3 {
  font-size: 18px; font-weight: 700; color: var(--gray-700);
  margin-bottom: 8px; margin-top: 28px;
}
.legal-content h3:first-child { margin-top: 0; }
.legal-content p {
  font-size: 15px; color: var(--gray-400); line-height: 1.7;
}
.legal-content a { color: var(--green); }

/* ===== DOWNLOAD ===== */
.download {
  padding: 160px 0;
  background: linear-gradient(135deg, #111827 0%, #1a2a1a 100%);
}
.download-inner { text-align: center; }
.download-title {
  font-size: clamp(36px, 6vw, 64px);
  font-weight: 700; letter-spacing: -1.5px;
  color: #fff; line-height: 1.1; margin-bottom: 20px;
}
.download-sub { font-size: 18px; color: rgba(255,255,255,0.5); margin-bottom: 48px; }
.download-btns { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.btn-store {
  display: flex; align-items: center; gap: 12px;
  background: rgba(255,255,255,0.08); color: #fff;
  border: 1.5px solid rgba(255,255,255,0.15);
  border-radius: 16px; padding: 14px 24px;
  font-size: 15px; transition: background 0.2s, border-color 0.2s;
}
.btn-store:hover { background: rgba(27,219,116,0.15); border-color: var(--green); }
.store-icon { font-size: 28px; }
.btn-store small { font-size: 11px; opacity: 0.6; display: block; }
.btn-store strong { font-size: 16px; }

/* ===== FOOTER ===== */
.footer {
  background: #000; padding: 40px 0;
}
.footer-inner {
  max-width: 1100px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px;
}
.footer-brand .nav-logo { color: #fff; }
.footer-brand p { font-size: 12px; color: rgba(255,255,255,0.4); margin-top: 2px; }
.footer-links { display: flex; gap: 24px; }
.footer-links a { font-size: 13px; color: rgba(255,255,255,0.5); transition: color 0.2s; }
.footer-links a:hover { color: var(--green); }
.footer-copy { font-size: 12px; color: rgba(255,255,255,0.3); width: 100%; text-align: center; }

/* ===== SWIPE DOTS ===== */
.swipe-dots {
  display: none;
  justify-content: center; gap: 8px;
  margin-top: 20px;
}
.dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gray-100); transition: background 0.3s, transform 0.3s;
  cursor: pointer;
}
.dot-active { background: var(--green); transform: scale(1.3); }

/* ===== SCROLL ANIMATIONS ===== */
.fade-up {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ===== RESPONSIVE — Tablet ===== */
@media (max-width: 900px) {
  .hero-mockups { gap: 12px; }
  .phone-frame { width: 180px; height: 380px; }
  .about-inner { grid-template-columns: 1fr; gap: 48px; }
}

/* ===== RESPONSIVE — Mobile (single merged block) ===== */
@media (max-width: 640px) {
  /* Nav */
  .nav-links { display: none; }
  .nav-cta { font-size: 12px; padding: 6px 14px; }

  /* Hero */
  .hero { padding: 100px 20px 60px; }
  .hero-title { font-size: 48px; letter-spacing: -1.5px; }
  .hero-sub { font-size: 17px; }
  .hero-btns { flex-direction: column; align-items: center; gap: 12px; margin-bottom: 48px; }
  .btn-primary, .btn-ghost { width: 100%; max-width: 280px; text-align: center; font-size: 16px; padding: 14px 24px; }

  /* ---- Swipe carousel ---- */
  .swipe-dots { display: flex; }

  /* Carousel wrapper — JS sets position:relative + overflow:hidden via JS */
  .hero-mockups {
    gap: 0;
    /* JS controls layout; touch-action allows vertical page scroll */
    touch-action: pan-y;
    align-items: flex-start;
  }

  /* All phone frames same size, no 3-D tilt */
  .phone-frame {
    transform: none !important;
    width: 240px !important;
    height: 490px !important;
  }

  /* Sections */
  .section-inner { padding: 0 16px; }
  .section-title { font-size: 28px; margin-bottom: 32px; }
  .features { padding: 80px 0; }
  .features-grid { grid-template-columns: 1fr; gap: 16px; }
  .feature-card { padding: 28px 24px; }

  /* Pricing */
  .pricing { padding: 80px 0; }
  .pricing-grid { flex-direction: column; align-items: center; }
  .plan-card { width: 100%; max-width: 340px; padding: 32px 24px; }

  /* About */
  .about { padding: 80px 0; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .about-stats { grid-template-columns: 1fr 1fr; gap: 16px; }
  .stat { padding: 24px 16px; }
  .stat-num { font-size: 32px; }
  .presented-by { margin-top: -28px; }

  /* Privacy */
  .privacy-section { padding: 80px 0; }
  .legal-content { padding: 24px 20px; }

  /* Download */
  .download { padding: 100px 0; }
  .download-btns { flex-direction: column; align-items: center; }
  .btn-store { width: 100%; max-width: 260px; justify-content: center; }

  /* Footer */
  .footer-inner { flex-direction: column; text-align: center; gap: 20px; }
  .footer-links { justify-content: center; flex-wrap: wrap; gap: 16px; }
  .footer-copy { margin-top: 8px; }
}

/* Very small screens */
@media (max-width: 380px) {
  .hero-title { font-size: 40px; }
  .phone-frame { width: 210px !important; height: 430px !important; }
}