/* LearnSibs Landing Page */
:root {
  --bg: #f8f6ff;
  --primary: #6c3aff;
  --primary-light: #ede8ff;
  --accent: #ff6b35;
  --text: #1a1a2e;
  --text-muted: #6b7280;
  --white: #ffffff;
  --border: #e5e0ff;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo-link {
  display: flex;
  align-items: center;
}

.logo-img {
  height: 40px;
  width: auto;
}

.hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 24px 60px;
  text-align: center;
}

.hero-eyebrow {
  display: inline-block;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
  color: var(--text);
}

.hero h1 em {
  font-style: normal;
  color: var(--primary);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 540px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 24px;
  border-radius: 10px;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: all 0.15s;
}

.btn-primary {
  background: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background: #5a2de0;
  transform: translateY(-1px);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* How it works */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 60px 24px;
}

.section-label {
  text-align: center;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.section-title {
  text-align: center;
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 48px;
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
}

.step {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--primary-light);
  color: var(--primary);
  font-weight: 700;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 0.9rem;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Pricing */
.pricing {
  background: var(--white);
  border-radius: 24px;
  padding: 48px 24px;
  max-width: 900px;
  margin: 0 auto;
  border: 1px solid var(--border);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 36px;
}

.plan {
  border: 2px solid var(--border);
  border-radius: 16px;
  padding: 28px 24px;
  text-align: center;
  position: relative;
  transition: all 0.2s;
}

.plan:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
}

.plan.popular {
  border-color: var(--primary);
  background: var(--primary-light);
}

.plan-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: white;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 999px;
  white-space: nowrap;
}

.plan-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.plan-size {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.plan-price {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1;
}

.plan-period {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 400;
}

.plan-features {
  list-style: none;
  margin: 20px 0 0;
  text-align: left;
}

.plan-features li {
  font-size: 0.85rem;
  color: var(--text-muted);
  padding: 4px 0;
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.plan-features li::before {
  content: '✓';
  color: var(--primary);
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
}

/* Features */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.feature {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 24px;
}

.feature h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature p {
  font-size: 0.88rem;
  color: var(--text-muted);
}

/* CTA */
.cta-section {
  text-align: center;
  padding: 80px 24px;
  background: var(--primary);
  color: var(--white);
}

.cta-section h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta-section p {
  color: rgba(255,255,255,0.75);
  max-width: 480px;
  margin: 0 auto 32px;
}

.btn-white {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
}

.btn-white:hover {
  background: #f0eeff;
  transform: translateY(-1px);
}

/* FAQ */
.faq-list {
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 20px 24px;
}

.faq-q {
  font-weight: 700;
  font-size: 0.95rem;
  margin-bottom: 8px;
}

.faq-a {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* Footer */
footer {
  background: var(--white);
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
  font-size: 0.82rem;
  color: var(--text-muted);
}

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

/* Responsive */
@media (max-width: 640px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .hero { padding: 48px 20px 40px; }
  .section { padding: 40px 20px; }
}