:root {
  --bg: #f8fafc;
  --surface: #ffffff;
  --border: #e2e8f0;
  --border-light: #f1f5f9;
  --text: #0f172a;
  --text-secondary: #64748b;
  --text-muted: #94a3b8;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --primary-light: #dbeafe;
  --success: #059669;
  --warning: #d97706;
  --danger: #dc2626;
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* ========== NAV ========== */
#nav { background: var(--surface); border-bottom: 1px solid var(--border); position: sticky; top: 0; z-index: 100; }
.nav-inner { max-width: 1200px; margin: 0 auto; padding: 14px 24px; display: flex; align-items: center; justify-content: space-between; }
.logo { font-size: 18px; font-weight: 700; color: var(--primary); text-decoration: none; display: flex; align-items: center; gap: 8px; letter-spacing: -0.02em; }
.logo-icon { width: 32px; height: 32px; background: var(--primary); color: #fff; border-radius: 8px; display: flex; align-items: center; justify-content: center; font-size: 16px; }
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-links a { color: var(--text-secondary); text-decoration: none; font-size: 14px; font-weight: 500; padding: 8px 14px; border-radius: var(--radius-sm); transition: all 0.15s; }
.nav-links a:hover { color: var(--text); background: var(--border-light); }

/* ========== BOUTONS ========== */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 10px 18px; border-radius: var(--radius-sm); font-size: 14px; font-weight: 600; cursor: pointer; border: 1px solid transparent; transition: all 0.15s ease; text-decoration: none; white-space: nowrap; line-height: 1; background: none; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: var(--shadow-sm); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-outline { background: var(--surface); color: var(--text-secondary); border-color: var(--border); }
.btn-outline:hover { border-color: var(--text-muted); color: var(--text); background: var(--bg); }
.btn-lg { padding: 14px 28px; font-size: 15px; border-radius: var(--radius); }
.btn-block { width: 100%; }

/* ========== HERO ========== */
.hero { background: linear-gradient(180deg, #fff 0%, var(--bg) 100%); padding: 80px 20px 60px; text-align: center; }
.container { max-width: 1100px; margin: 0 auto; }
.hero-badge { display: inline-block; background: var(--primary-light); color: var(--primary-dark); padding: 6px 14px; border-radius: 20px; font-size: 13px; font-weight: 600; margin-bottom: 20px; }
.hero h1 { font-size: 52px; font-weight: 800; line-height: 1.1; color: var(--text); margin-bottom: 16px; letter-spacing: -0.02em; }
.hero-sub { font-size: 18px; color: var(--text-secondary); max-width: 560px; margin: 0 auto 28px; }
.hero-cta { margin-bottom: 16px; }
.hero-note { font-size: 13px; color: var(--text-muted); }
.hero-stats { display: flex; justify-content: center; gap: 48px; margin-top: 48px; flex-wrap: wrap; }
.stat { text-align: center; }
.stat strong { display: block; font-size: 32px; font-weight: 700; color: var(--text); }
.stat span { font-size: 13px; color: var(--text-secondary); }

/* ========== TRUST ========== */
.trust { background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); padding: 32px 20px; text-align: center; }
.trust-label { font-size: 13px; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 16px; }
.trust-logos { display: flex; justify-content: center; gap: 32px; flex-wrap: wrap; }
.trust-logos span { font-size: 16px; font-weight: 600; color: var(--text-secondary); opacity: 0.6; }

/* ========== SECTIONS ========== */
.section { padding: 80px 20px; }
.section-alt { background: var(--surface); }
.section h2 { font-size: 36px; font-weight: 700; text-align: center; margin-bottom: 12px; color: var(--text); }
.section-sub { text-align: center; color: var(--text-secondary); font-size: 16px; margin-bottom: 48px; }

/* ========== STEPS ========== */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.step { text-align: center; }
.step-num { width: 56px; height: 56px; border-radius: 50%; background: var(--primary-light); color: var(--primary); font-size: 22px; font-weight: 700; display: flex; align-items: center; justify-content: center; margin: 0 auto 16px; }
.step h3 { font-size: 18px; font-weight: 600; margin-bottom: 8px; }
.step p { font-size: 14px; color: var(--text-secondary); }

/* ========== FEATURES ========== */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.feature { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); transition: all 0.15s; }
.feature:hover { box-shadow: var(--shadow-md); transform: translateY(-2px); }
.feature-icon { font-size: 32px; margin-bottom: 12px; }
.feature h3 { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.feature p { font-size: 14px; color: var(--text-secondary); }

/* ========== PRICING ========== */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; align-items: start; }
.plan { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 32px; position: relative; }
.plan-popular { border-color: var(--primary); box-shadow: 0 4px 20px rgba(37,99,235,0.1); transform: scale(1.03); }
.plan-badge { position: absolute; top: -10px; left: 50%; transform: translateX(-50%); background: var(--primary); color: #fff; font-size: 11px; font-weight: 600; padding: 4px 12px; border-radius: 20px; text-transform: uppercase; letter-spacing: 0.05em; }
.plan h3 { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.plan-price { font-size: 40px; font-weight: 800; color: var(--text); margin: 16px 0 24px; }
.plan-price span { font-size: 16px; font-weight: 500; color: var(--text-secondary); }
.plan ul { list-style: none; margin-bottom: 24px; }
.plan ul li { font-size: 14px; color: var(--text-secondary); padding: 8px 0; display: flex; align-items: center; gap: 8px; }

/* ========== TESTIMONIALS ========== */
.testimonials { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.testimonial { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; box-shadow: var(--shadow-sm); }
.testimonial p { font-size: 15px; color: var(--text); font-style: italic; margin-bottom: 16px; line-height: 1.6; }
.testimonial-author { font-size: 13px; color: var(--text-secondary); }
.testimonial-author strong { color: var(--text); }

/* ========== FAQ ========== */
.faq-list { max-width: 720px; margin: 0 auto; }
.faq-item { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin-bottom: 12px; }
.faq-item h4 { font-size: 16px; font-weight: 600; margin-bottom: 8px; color: var(--text); }
.faq-item p { font-size: 14px; color: var(--text-secondary); }

/* ========== CTA ========== */
.cta-section { background: linear-gradient(135deg, var(--primary-light), #eff6ff); text-align: center; }
.cta-section h2 { margin-bottom: 12px; }

/* ========== FOOTER ========== */
.footer { background: var(--text); color: #94a3b8; padding: 60px 24px 24px; }
.footer-inner { max-width: 1100px; margin: 0 auto; display: grid; grid-template-columns: 1.5fr 2fr; gap: 48px; margin-bottom: 40px; }
.footer-brand .logo { color: #fff; margin-bottom: 12px; }
.footer-brand p { font-size: 14px; line-height: 1.6; }
.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.footer-col h4 { color: #fff; font-size: 14px; font-weight: 600; margin-bottom: 16px; }
.footer-col a { display: block; color: #94a3b8; text-decoration: none; font-size: 14px; padding: 4px 0; transition: color 0.15s; }
.footer-col a:hover { color: #fff; }
.footer-bottom { max-width: 1100px; margin: 0 auto; border-top: 1px solid #334155; padding-top: 24px; text-align: center; font-size: 13px; }

/* ========== RESPONSIVE ========== */
@media (max-width: 768px) {
  .hero h1 { font-size: 36px; }
  .steps, .features, .pricing, .testimonials { grid-template-columns: 1fr; }
  .plan-popular { transform: none; }
  .hero-stats { gap: 24px; }
  .nav-links a:not(.btn) { display: none; }
  .footer-inner { grid-template-columns: 1fr; }
  .footer-links { grid-template-columns: 1fr; }
}