/* ── Reset & Base ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --brand: #2563EB;
  --brand-dark: #1D4ED8;
  --brand-light: #DBEAFE;
  --text: #111827;
  --text-secondary: #6B7280;
  --text-muted: #9CA3AF;
  --bg: #FFFFFF;
  --bg-alt: #F9FAFB;
  --border: #E5E7EB;
  --success: #059669;
  --success-bg: #ECFDF5;
  --success-border: #A7F3D0;
  --error: #DC2626;
  --error-bg: #FEF2F2;
  --error-border: #FECACA;
  --radius: 8px;
  --max-width: 1120px;
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

img { max-width: 100%; display: block; }

/* ── Layout ── */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

/* ── Header ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--brand);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.nav-links { display: flex; align-items: center; gap: 32px; list-style: none; }
.nav-links a { color: var(--text-secondary); font-size: 0.9375rem; font-weight: 500; text-decoration: none; }
.nav-links a:hover { color: var(--text); text-decoration: none; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, transform 0.1s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { background: var(--brand-dark); }

.btn-secondary { background: var(--bg-alt); color: var(--text); border: 1px solid var(--border); }
.btn-secondary:hover { background: #F3F4F6; }

.btn-sm { padding: 8px 16px; font-size: 0.875rem; }

/* Mobile menu */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--text);
}

.mobile-menu {
  display: none;
  padding: 16px 24px 24px;
  background: var(--bg);
  border-bottom: 1px solid var(--border);
}

.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block;
  padding: 12px 0;
  color: var(--text-secondary);
  font-size: 1rem;
  font-weight: 500;
  border-bottom: 1px solid var(--border);
  text-decoration: none;
}
.mobile-menu a:last-child { border-bottom: none; }
.mobile-menu .btn { margin-top: 16px; width: 100%; }

/* ── Hero ── */
.hero {
  padding: 80px 0 64px;
  text-align: center;
}

.hero h1 {
  font-size: 3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text);
  max-width: 640px;
  margin: 0 auto 20px;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto 32px;
  line-height: 1.6;
}

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

/* ── Section shared ── */
.section { padding: 80px 0; }
.section-alt { background: var(--bg-alt); }

.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}
.section-header p {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
}

/* ── Features ── */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 32px 24px;
}

.feature-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  background: var(--brand-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg { width: 28px; height: 28px; color: var(--brand); }

.feature-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Steps ── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  counter-reset: step;
}

.step-card { text-align: center; counter-increment: step; }

.step-number {
  width: 48px;
  height: 48px;
  margin: 0 auto 16px;
  background: var(--brand);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  font-weight: 700;
}

.step-card h3 {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 8px;
}

.step-card p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ── Pricing ── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: start;
}

.pricing-card {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 32px 28px;
  position: relative;
  background: var(--bg);
}

.pricing-card.popular {
  border-color: var(--brand);
  box-shadow: 0 0 0 1px var(--brand), 0 8px 24px rgba(37,99,235,0.12);
}

.pricing-badge {
  position: absolute;
  top: -13px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--brand);
  color: #fff;
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 4px 16px;
  border-radius: 20px;
}

.pricing-card h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.pricing-price {
  margin-bottom: 24px;
}

.pricing-price .amount {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.pricing-price .period {
  font-size: 1rem;
  color: var(--text-muted);
}

.pricing-features {
  list-style: none;
  margin-bottom: 28px;
}

.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 6px 0;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.pricing-features li.disabled {
  color: var(--text-muted);
}

.pricing-features .check {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: var(--success);
}

.pricing-features .cross {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  color: var(--text-muted);
}

.pricing-card .btn { width: 100%; }

.pricing-note {
  text-align: center;
  margin-top: 32px;
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-links { display: flex; gap: 24px; list-style: none; }
.footer-links a { color: var(--text-muted); font-size: 0.875rem; }
.footer-links a:hover { color: var(--text-secondary); }

.footer-copy { font-size: 0.875rem; color: var(--text-muted); }

/* ── Confirmation Overlay ── */
.confirm-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 20px;
  display: flex;
  justify-content: center;
  animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

.confirm-card {
  background: var(--bg);
  border-radius: 12px;
  padding: 32px 40px;
  max-width: 480px;
  width: 100%;
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  text-align: center;
  position: relative;
}

.confirm-card.success { border: 2px solid var(--success); }
.confirm-card.error { border: 2px solid var(--error); }

.confirm-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  padding: 4px 8px;
}
.confirm-close:hover { color: var(--text); }

.confirm-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
}

.confirm-icon.success { background: var(--success-bg); color: var(--success); }
.confirm-icon.error { background: var(--error-bg); color: var(--error); }

.confirm-card h2 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.confirm-card p {
  font-size: 1rem;
  color: var(--text-secondary);
  margin-bottom: 8px;
  line-height: 1.5;
}

.confirm-card .note {
  font-size: 0.875rem;
  color: var(--text-muted);
}

/* ── Legal pages ── */
.legal {
  padding: 48px 0 80px;
  max-width: 720px;
  margin: 0 auto;
}

.legal h1 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.legal .updated {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 40px;
}

.legal h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 32px;
  margin-bottom: 12px;
}

.legal h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-top: 20px;
  margin-bottom: 8px;
}

.legal p, .legal li {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 12px;
}

.legal ul, .legal ol {
  padding-left: 24px;
  margin-bottom: 16px;
}

.legal li { margin-bottom: 8px; }

.legal a { color: var(--brand); }

/* ── Responsive ── */
@media (max-width: 768px) {
  .nav-links, .header-cta-desktop { display: none; }
  .mobile-toggle { display: block; }

  .hero { padding: 48px 0 40px; }
  .hero h1 { font-size: 2rem; }
  .hero p { font-size: 1.0625rem; }

  .section { padding: 48px 0; }

  .features-grid,
  .steps-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .pricing-card.popular { order: -1; }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links { justify-content: center; }

  .legal { padding: 32px 24px 64px; }
  .legal h1 { font-size: 1.5rem; }
}

@media (min-width: 769px) {
  .mobile-toggle, .mobile-menu { display: none !important; }
}