:root {
  --deep-purple: #26215C;
  --purple: #534AB7;
  --mid-purple: #3C3489;
  --soft-purple: #7F77DD;
  --lavender: #AFA9EC;
  --lilac: #CECBF6;
  --surface: #EEEDFE;
  --white: #ffffff;
  --max: 1200px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--deep-purple);
  line-height: 1.6;
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  font-weight: 400;
}

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

a { text-decoration: none; color: inherit; }

h1, h2, h3 { font-weight: 500; line-height: 1.2; color: var(--deep-purple); }

.overline {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--lavender);
  margin-bottom: 14px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 500;
  font-size: 15px;
  padding: 10px 20px;
  border-radius: 10px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn-sm { padding: 8px 16px; font-size: 14px; }
.btn-primary { background: var(--purple); color: var(--surface); }
.btn-primary:hover { background: var(--mid-purple); }
.btn-ghost { background: transparent; color: var(--purple); border-color: var(--purple); }
.btn-ghost:hover { background: var(--surface); }
.btn-light { background: var(--surface); color: var(--purple); }
.btn-light:hover { background: var(--white); }

/* Logo */
.logo { width: 28px; height: 26px; display: block; }
.logo-lg { width: 64px; height: 60px; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--white);
  border-bottom: 0.5px solid var(--lilac);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.brand { display: flex; align-items: center; gap: 10px; }
.brand-name {
  font-size: 19px;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--deep-purple);
}
.nav { display: flex; gap: 28px; }
.nav a { color: var(--soft-purple); font-weight: 500; font-size: 15px; }
.nav a:hover { color: var(--purple); }

.header-actions { display: flex; align-items: center; gap: 16px; }
.lang-switch {
  display: inline-flex;
  border: 1.5px solid var(--lilac);
  border-radius: 9999px;
  overflow: hidden;
}
.lang-btn {
  background: transparent;
  color: var(--soft-purple);
  border: none;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  cursor: pointer;
  transition: background .15s ease, color .15s ease;
}
.lang-btn:hover { color: var(--purple); }
.lang-btn.active { background: var(--purple); color: var(--surface); }

/* Hero */
.hero {
  background: var(--surface);
  padding: 88px 0 80px;
  text-align: center;
}
.hero h1 {
  font-size: clamp(32px, 5vw, 48px);
  letter-spacing: -0.03em;
}
.hero h1 .accent { color: var(--purple); }
.tagline {
  font-size: 15px;
  color: var(--soft-purple);
  letter-spacing: 0.01em;
  margin-top: 16px;
}
.hero-sub {
  max-width: 620px;
  margin: 12px auto 0;
  font-size: 16px;
  color: var(--soft-purple);
}
.hero-cta { display: flex; gap: 14px; justify-content: center; margin-top: 32px; flex-wrap: wrap; }
.hero-stats {
  display: flex;
  gap: 40px;
  justify-content: center;
  margin-top: 64px;
  flex-wrap: wrap;
}
.stat { display: flex; flex-direction: column; max-width: 220px; }
.stat strong { font-size: 16px; font-weight: 500; color: var(--purple); }
.stat span { font-size: 14px; color: var(--soft-purple); }

/* Sections */
.section { padding: 64px 0; }
.section-alt { background: var(--surface); }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section-head h2 { font-size: clamp(26px, 3.5vw, 32px); letter-spacing: -0.02em; }
.section-head p { color: var(--soft-purple); font-size: 16px; margin-top: 12px; }

/* Feature grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.card {
  background: var(--white);
  border: 0.5px solid var(--lilac);
  border-radius: 16px;
  padding: 24px;
}
.card-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: var(--surface);
  border-radius: 12px;
  color: var(--purple);
  margin-bottom: 16px;
}
.card-icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 18px; letter-spacing: -0.01em; margin-bottom: 8px; }
.card p { color: var(--soft-purple); font-size: 15px; }

/* Steps */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.step {
  background: var(--white);
  border: 0.5px solid var(--lilac);
  border-radius: 16px;
  padding: 24px;
}
.step-num {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 40px; height: 40px;
  background: var(--purple);
  color: var(--surface);
  border-radius: 9999px;
  font-weight: 500;
  margin-bottom: 16px;
}
.step h3 { font-size: 18px; margin-bottom: 8px; }
.step p { color: var(--soft-purple); font-size: 15px; }

/* Security */
.security-inner { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: center; }
.security-text h2 { font-size: clamp(26px, 3.5vw, 32px); letter-spacing: -0.02em; }
.security-text p { color: var(--soft-purple); font-size: 16px; margin: 14px 0 24px; }
.checklist { list-style: none; display: grid; gap: 12px; }
.checklist li {
  position: relative;
  padding-left: 28px;
  color: var(--deep-purple);
  font-size: 15px;
}
.checklist li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--purple);
  font-weight: 500;
}
.security-card {
  background: var(--deep-purple);
  color: var(--surface);
  border-radius: 24px;
  padding: 48px;
  text-align: center;
}
.security-card .logo-lg { margin: 0 auto 16px; }
.security-card p { font-size: 16px; color: var(--lavender); }

/* CTA */
.cta {
  background: var(--deep-purple);
  color: var(--surface);
  text-align: center;
  padding: 72px 0;
}
.cta h2 { color: var(--surface); font-size: clamp(26px, 4vw, 32px); }
.cta p { font-size: 16px; color: var(--lavender); margin: 12px 0 28px; }

/* Footer */
.site-footer { background: var(--deep-purple); padding: 36px 0; border-top: 0.5px solid var(--mid-purple); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 16px; }
.footer-brand-name { color: var(--surface); }
.footer-copy { color: var(--lavender); font-size: 14px; }

/* Responsive */
@media (max-width: 900px) {
  .grid, .steps { grid-template-columns: 1fr 1fr; }
  .security-inner { grid-template-columns: 1fr; }
  .nav { display: none; }
}
@media (max-width: 600px) {
  .grid, .steps { grid-template-columns: 1fr; }
  .hero { padding: 56px 0; }
  .section { padding: 40px 0; }
}