/* Reset & Base */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body { font-family: 'Inter', -apple-system, sans-serif; color: #1a1a2e; line-height: 1.6; background: #fff; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; }
.container { max-width: 1120px; margin: 0 auto; padding: 0 24px; }

/* Nav */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 100; background: rgba(255,255,255,0.95); backdrop-filter: blur(12px); border-bottom: 1px solid #eee; }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { font-size: 1.5rem; font-weight: 800; color: #1a1a2e; }
.logo span { color: #4f46e5; }
.nav-links { display: flex; align-items: center; gap: 32px; }
.nav-links a { font-size: 0.938rem; font-weight: 500; color: #555; transition: color 0.2s; }
.nav-links a:hover { color: #4f46e5; }
.mobile-toggle { display: none; background: none; border: none; cursor: pointer; padding: 4px; flex-direction: column; gap: 5px; }
.mobile-toggle span { display: block; width: 24px; height: 2px; background: #1a1a2e; border-radius: 2px; transition: 0.3s; }
.mobile-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.mobile-toggle.active span:nth-child(2) { opacity: 0; }
.mobile-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; font-weight: 600; border-radius: 8px; transition: all 0.2s; cursor: pointer; border: none; font-family: inherit; }
.btn-sm { padding: 8px 20px; font-size: 0.875rem; background: #4f46e5; color: #fff; }
.btn-sm:hover { background: #4338ca; }
.btn-lg { padding: 14px 32px; font-size: 1rem; background: #4f46e5; color: #fff; }
.btn-lg:hover { background: #4338ca; transform: translateY(-1px); box-shadow: 0 4px 12px rgba(79,70,229,0.35); }
.btn-outline { background: transparent; color: #4f46e5; border: 2px solid #4f46e5; }
.btn-outline:hover { background: #4f46e5; color: #fff; }
.btn-full { width: 100%; }

/* Hero */
.hero { padding: 160px 0 100px; background: linear-gradient(180deg, #f8f7ff 0%, #fff 100%); }
.hero-content { max-width: 720px; margin: 0 auto; text-align: center; }
.badge { display: inline-block; padding: 6px 16px; font-size: 0.813rem; font-weight: 600; color: #4f46e5; background: #ede9fe; border-radius: 100px; margin-bottom: 24px; }
.hero h1 { font-size: 3.5rem; font-weight: 800; line-height: 1.1; letter-spacing: -0.03em; margin-bottom: 20px; color: #1a1a2e; }
.hero-sub { font-size: 1.25rem; color: #555; line-height: 1.7; margin-bottom: 36px; }
.hero-actions { display: flex; gap: 16px; justify-content: center; margin-bottom: 56px; }
.hero-proof { display: flex; align-items: center; justify-content: center; gap: 32px; }
.proof-item { text-align: center; }
.proof-item strong { display: block; font-size: 1.5rem; font-weight: 800; color: #4f46e5; }
.proof-item span { font-size: 0.813rem; color: #888; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; }
.proof-divider { width: 1px; height: 40px; background: #ddd; }

/* Features */
.features { padding: 100px 0; }
.section-header { text-align: center; max-width: 600px; margin: 0 auto 64px; }
.section-header h2 { font-size: 2.25rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-header p { font-size: 1.125rem; color: #666; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature-card { padding: 32px; border-radius: 12px; border: 1px solid #eee; transition: all 0.2s; }
.feature-card:hover { border-color: #c7d2fe; box-shadow: 0 8px 24px rgba(79,70,229,0.08); transform: translateY(-2px); }
.feature-icon { width: 52px; height: 52px; border-radius: 10px; background: #ede9fe; color: #4f46e5; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; }
.feature-card h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 8px; }
.feature-card p { font-size: 0.938rem; color: #666; line-height: 1.6; }

/* How it Works */
.how-it-works { padding: 100px 0; background: #f8f7ff; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; max-width: 960px; margin: 0 auto; }
.step { text-align: center; }
.step-num { width: 48px; height: 48px; border-radius: 50%; background: #4f46e5; color: #fff; font-size: 1.25rem; font-weight: 700; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; }
.step h3 { font-size: 1.125rem; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 0.938rem; color: #666; }

/* Pricing */
.pricing { padding: 100px 0; }
.pricing-card { max-width: 480px; margin: 0 auto; border: 2px solid #4f46e5; border-radius: 16px; padding: 48px 40px; text-align: center; position: relative; }
.pricing-badge { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: #4f46e5; color: #fff; padding: 4px 20px; border-radius: 100px; font-size: 0.813rem; font-weight: 600; }
.pricing-amount { margin: 16px 0 8px; }
.currency { font-size: 1.5rem; font-weight: 700; vertical-align: top; line-height: 2; }
.price { font-size: 4rem; font-weight: 800; letter-spacing: -0.03em; }
.period { font-size: 1.125rem; color: #888; font-weight: 500; }
.pricing-desc { color: #666; margin-bottom: 32px; }
.pricing-features { text-align: left; margin-bottom: 32px; }
.pricing-features li { padding: 8px 0; font-size: 0.938rem; color: #444; padding-left: 28px; position: relative; }
.pricing-features li::before { content: "\2713"; position: absolute; left: 0; color: #4f46e5; font-weight: 700; }
.pricing-note { margin-top: 12px; font-size: 0.813rem; color: #888; }

/* FAQ */
.faq { padding: 100px 0; background: #fafafa; }
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { border-bottom: 1px solid #e5e5e5; }
.faq-item summary { padding: 20px 0; font-size: 1.063rem; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; }
.faq-item summary::after { content: "+"; font-size: 1.5rem; color: #4f46e5; font-weight: 300; transition: transform 0.2s; }
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p { padding: 0 0 20px; font-size: 0.938rem; color: #666; line-height: 1.7; }

/* Contact */
.contact { padding: 100px 0; }
.contact-inner { max-width: 640px; margin: 0 auto; }
.contact-text { text-align: center; margin-bottom: 40px; }
.contact-text h2 { font-size: 2.25rem; font-weight: 800; margin-bottom: 12px; }
.contact-text p { font-size: 1.125rem; color: #666; }
.contact-form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-form input, .contact-form textarea { padding: 14px 16px; border: 1px solid #ddd; border-radius: 8px; font-size: 0.938rem; font-family: inherit; transition: border-color 0.2s; outline: none; }
.contact-form input:focus, .contact-form textarea:focus { border-color: #4f46e5; box-shadow: 0 0 0 3px rgba(79,70,229,0.1); }
.contact-form textarea { resize: vertical; }

/* Footer */
.footer { padding: 64px 0 32px; background: #1a1a2e; color: #ccc; }
.footer-inner { display: flex; justify-content: space-between; gap: 40px; margin-bottom: 48px; }
.footer-brand { max-width: 280px; }
.footer-brand .logo { color: #fff; margin-bottom: 12px; display: inline-block; }
.footer-brand p { font-size: 0.875rem; color: #999; }
.footer-links { display: flex; gap: 64px; }
.footer-col h4 { font-size: 0.875rem; font-weight: 600; color: #fff; margin-bottom: 16px; text-transform: uppercase; letter-spacing: 0.05em; }
.footer-col a { display: block; font-size: 0.875rem; color: #999; margin-bottom: 10px; transition: color 0.2s; }
.footer-col a:hover { color: #c7d2fe; }
.footer-bottom { border-top: 1px solid #2a2a3e; padding-top: 24px; }
.footer-bottom p { font-size: 0.813rem; color: #666; }

/* Mobile */
@media (max-width: 768px) {
  .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 24px; gap: 20px; border-bottom: 1px solid #eee; box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
  .nav-links.open { display: flex; }
  .mobile-toggle { display: flex; }
  .hero { padding: 120px 0 72px; }
  .hero h1 { font-size: 2.25rem; }
  .hero-sub { font-size: 1.063rem; }
  .hero-actions { flex-direction: column; align-items: center; }
  .hero-proof { flex-direction: column; gap: 16px; }
  .proof-divider { width: 40px; height: 1px; }
  .features-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; }
  .footer-links { flex-direction: column; gap: 32px; }
}