:root {
  --primary: #FF6B6B;
  --primary-dark: #E55A5A;
  --secondary: #4ECDC4;
  --accent: #FFE66D;
  --dark: #2C3E50;
  --light: #FFF8F0;
  --muted: #6C7A89;
  --border: #E8DFD4;
  --success: #27AE60;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Be Vietnam Pro', system-ui, -apple-system, sans-serif;
  background: var(--light);
  color: var(--dark);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

h1 { font-size: clamp(2rem, 4.5vw, 3.25rem); line-height: 1.15; margin-bottom: 20px; font-weight: 800; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); margin-bottom: 16px; text-align: center; font-weight: 800; }
h3 { font-size: 1.15rem; margin-bottom: 8px; font-weight: 700; }
.highlight { color: var(--primary); }
.sub { text-align: center; color: var(--muted); margin: 0 auto 32px; max-width: 680px; }

.eyebrow {
  display: block; text-align: center; text-transform: uppercase; letter-spacing: 0.08em;
  font-size: 0.8rem; font-weight: 800; color: var(--primary); margin-bottom: 10px;
}

.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
  cursor: pointer;
}
.btn-primary { background: var(--primary); color: white; box-shadow: 0 8px 24px rgba(255,107,107,0.35); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--dark); border-color: var(--border); }
.btn-ghost:hover { background: var(--border); }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; }

.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255, 248, 240, 0.9);
  backdrop-filter: blur(8px);
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; padding: 16px 24px; }
.logo { display: flex; align-items: center; gap: 12px; font-size: 1.2rem; font-weight: 800; color: var(--dark); text-decoration: none; }
.logo img { width: 40px; height: 40px; object-fit: contain; }
.logo span { color: var(--primary); }
.nav-links { display: flex; gap: 28px; align-items: center; }
.nav-links a { color: var(--dark); text-decoration: none; font-weight: 600; }
.nav-links a:not(.btn):hover { color: var(--primary); }
.nav-links .btn-primary { color: white; padding: 10px 22px; }

.hero {
  padding: 88px 0 96px;
  background: radial-gradient(circle at 20% 20%, #FFE5E5 0%, transparent 45%),
              radial-gradient(circle at 80% 0%, #E5FBF9 0%, transparent 40%),
              var(--light);
  text-align: center;
}
.hero-inner { max-width: 780px; margin: 0 auto; }
.hero-badge {
  display: inline-block; background: white; border: 2px solid var(--border);
  padding: 6px 18px; border-radius: 999px; font-size: 0.85rem; font-weight: 700;
  margin-bottom: 20px;
}
.hero-sub { font-size: 1.15rem; color: var(--muted); margin: 0 auto 32px; }
.hero-cta { display: flex; gap: 16px; justify-content: center; margin-bottom: 32px; flex-wrap: wrap; }
.hero-trust { display: flex; gap: 20px; justify-content: center; color: var(--muted); flex-wrap: wrap; font-size: 0.9rem; }

section { padding: 80px 0; }

.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 900px) { .grid-3 { grid-template-columns: 1fr 1fr; } }
@media (max-width: 600px) { .grid-3 { grid-template-columns: 1fr; } }

.card {
  background: white; padding: 28px; border-radius: 20px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
}
.card .emoji { font-size: 2.75rem; margin-bottom: 12px; }
.card p { color: var(--muted); margin-top: 6px; }
.card--pain { border-top: 4px solid var(--primary); }

.problem { background: white; }

.solution { background: var(--light); }
.world-track {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; margin-top: 32px;
}
@media (max-width: 900px) { .world-track { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .world-track { grid-template-columns: 1fr; } }
.world-card {
  background: white; padding: 24px 20px; border-radius: 20px; text-align: center;
  border: 2px solid var(--border); position: relative;
}
.world-card--free { border-color: var(--success); background: #f0fff4; }
.world-badge {
  width: 30px; height: 30px; border-radius: 50%; background: var(--dark); color: white;
  font-weight: 800; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 10px; font-size: 0.9rem;
}
.world-card--free .world-badge { background: var(--success); }
.world-emoji { font-size: 2.5rem; margin-bottom: 8px; }
.world-card p { color: var(--muted); font-size: 0.875rem; margin: 8px 0 14px; min-height: 60px; }
.tag {
  display: inline-block; background: var(--light); border: 1px solid var(--border);
  color: var(--muted); padding: 4px 12px; border-radius: 999px; font-size: 0.78rem; font-weight: 700;
}
.tag--free { background: var(--success); border-color: var(--success); color: white; }
.world-note { text-align: center; color: var(--muted); margin-top: 24px; font-size: 0.95rem; max-width: 700px; margin-left: auto; margin-right: auto; }

.how { background: white; }
.step { text-align: center; padding: 12px; }
.step-num {
  width: 48px; height: 48px; border-radius: 50%; background: var(--primary); color: white;
  font-weight: 800; font-size: 1.25rem; display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px;
}

.compare { background: var(--light); }
.table-wrap { overflow-x: auto; }
.compare table {
  width: 100%; border-collapse: collapse; background: white;
  border-radius: 16px; overflow: hidden; box-shadow: 0 8px 24px rgba(0,0,0,0.05);
  min-width: 480px;
}
.compare th, .compare td { padding: 16px 24px; text-align: left; border-bottom: 1px solid var(--border); }
.compare th { background: var(--dark); color: white; }
.compare tr.ours { background: #FFF5E5; }
.compare tr.ours td { font-weight: 700; color: var(--primary); }

.why { background: white; }

.pricing { background: var(--light); }
.promo-banner {
  max-width: 640px; margin: 0 auto 32px; text-align: center; background: var(--accent);
  color: #5c4a00; padding: 12px 20px; border-radius: 14px; font-weight: 700; font-size: 0.95rem;
}
.pricing .price-card {
  background: white; padding: 32px; border-radius: 24px;
  box-shadow: 0 4px 16px rgba(0,0,0,0.06);
  position: relative;
}
.pricing .price-card--recommended { border: 3px solid var(--primary); transform: scale(1.04); }
@media (max-width: 900px) { .pricing .price-card--recommended { transform: none; } }
.pricing .badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--primary); color: white; padding: 6px 20px;
  border-radius: 999px; font-size: 0.85rem; font-weight: 700; white-space: nowrap;
}
.pricing .price-old { color: var(--muted); text-decoration: line-through; font-size: 1.05rem; margin-top: 8px; }
.pricing .price { font-size: 2rem; font-weight: 800; color: var(--primary); margin: 2px 0 4px; }
.pricing .duration { color: var(--muted); font-size: 0.9rem; margin-bottom: 4px; }
.pricing ul { list-style: none; padding: 16px 0 0; }
.pricing li { padding: 6px 0; font-size: 0.92rem; }
.pricing li::before { content: '✓ '; color: var(--success); font-weight: 700; }
.pricing-note { text-align: center; color: var(--muted); margin-top: 28px; max-width: 680px; margin-left: auto; margin-right: auto; }

.faq { background: white; }
.faq details {
  background: var(--light); padding: 16px 24px; border-radius: 14px;
  margin-bottom: 12px; max-width: 780px; margin-left: auto; margin-right: auto;
}
.faq summary { cursor: pointer; font-weight: 700; padding: 8px 0; }
.faq p { padding: 8px 0 0; color: var(--muted); }

.cta {
  background: linear-gradient(135deg, var(--primary) 0%, #FFC371 100%);
  color: white; text-align: center;
}
.cta h2 { color: white; }
.cta p { margin-bottom: 32px; font-size: 1.1rem; opacity: 0.95; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta .btn-ghost { color: white; border-color: rgba(255,255,255,0.8); }
.cta .btn-ghost:hover { background: white; color: var(--dark); }

footer {
  background: var(--dark); color: white; padding: 40px 0; text-align: center;
}
footer p { margin: 8px 0; }
footer a { color: var(--accent); text-decoration: none; margin: 0 6px; }
footer a:hover { text-decoration: underline; }

@media (max-width: 768px) {
  .hero { padding: 56px 0; }
  .nav-links { gap: 12px; }
  .nav-links a:not(.btn) { display: none; }
  section { padding: 48px 0; }
}