:root {
  --bg: #0f172a;
  --bg-alt: #111827;
  --accent: #2563eb;
  --accent-soft: #1d4ed8;
  --text: #f9fafb;
  --muted: #9ca3af;
  --card-bg: #020617;
  --border: #1f2937;
  --danger: #dc2626;
  --radius: 6px;
  --shadow-soft: 0 10px 30px rgba(0,0,0,0.35);
  --max-width: 1100px;
  --transition: 0.18s ease-out;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-sans);
  background: radial-gradient(circle at top, #1f2937 0, #020617 55%);
  color: var(--text);
}

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

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(12px);
  background: linear-gradient(to bottom, rgba(15,23,42,0.95), rgba(15,23,42,0.85));
  border-bottom: 1px solid rgba(148,163,184,0.15);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 0;
}

.logo span {
  font-weight: 700;
  letter-spacing: 0.04em;
  font-size: 18px;
}

.nav-links {
  display: none;
  gap: 18px;
  font-size: 14px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-actions .link {
  font-size: 14px;
  color: var(--muted);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition), color var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #f9fafb;
  box-shadow: 0 10px 25px rgba(37,99,235,0.45);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(37,99,235,0.6);
}

.btn-secondary {
  background: transparent;
  border: 1px solid rgba(148,163,184,0.4);
  color: var(--muted);
}

.btn-secondary:hover {
  border-color: rgba(148,163,184,0.8);
  color: #e5e7eb;
}

.btn-full {
  width: 100%;
}

/* Hero */

.hero {
  padding: 40px 0 40px;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.hero-copy h1 {
  font-size: 28px;
  line-height: 1.2;
  margin-bottom: 12px;
}

.hero-copy p {
  color: var(--muted);
  max-width: 480px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 18px 0 6px;
}

.hero-subtext {
  font-size: 13px;
  color: var(--muted);
}

.hero-visual {
  display: flex;
  justify-content: center;
}

.hero-card {
  background: radial-gradient(circle at top left, #1f2937 0, #020617 60%);
  border-radius: 14px;
  padding: 18px 16px;
  border: 1px solid rgba(148,163,184,0.25);
  box-shadow: var(--shadow-soft);
  max-width: 360px;
}

.hero-card h3 {
  margin-top: 0;
  margin-bottom: 6px;
  font-size: 16px;
}

.hero-card p {
  margin: 4px 0;
  font-size: 13px;
}

/* Sections */

.section {
  padding: 32px 0;
}

.section.alt {
  background: radial-gradient(circle at top, #020617 0, #020617 60%);
}

.section h2 {
  font-size: 22px;
  margin-bottom: 16px;
}

.section-intro {
  color: var(--muted);
  margin-bottom: 18px;
}

/* Features */

.feature-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.feature-item {
  background: rgba(15,23,42,0.9);
  border-radius: var(--radius);
  padding: 14px 14px 12px;
  border: 1px solid rgba(148,163,184,0.2);
}

.feature-item h3 {
  margin: 0 0 6px;
  font-size: 16px;
}

.feature-item p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

/* Steps */

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.step {
  background: rgba(15,23,42,0.9);
  border-radius: var(--radius);
  padding: 14px;
  border: 1px solid rgba(148,163,184,0.2);
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 22px;
  height: 22px;
  border-radius: 999px;
  background: rgba(37,99,235,0.15);
  color: #bfdbfe;
  font-size: 12px;
  margin-top: 2px;
}

.step h3 {
  margin: 0 0 4px;
  font-size: 15px;
}

.step p {
  margin: 0;
  font-size: 13px;
  color: var(--muted);
}

/* Pricing */

.pricing-card {
  max-width: 360px;
  margin: 0 auto;
  background: rgba(15,23,42,0.95);
  border-radius: 14px;
  padding: 18px 16px 16px;
  border: 1px solid rgba(37,99,235,0.5);
  box-shadow: var(--shadow-soft);
}

.pricing-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
}

.price {
  margin: 0 0 10px;
}

.price-amount {
  font-size: 26px;
  font-weight: 700;
}

.price-period {
  font-size: 13px;
  color: var(--muted);
  margin-left: 4px;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 14px;
  font-size: 13px;
  color: var(--muted);
}

.pricing-features li {
  margin-bottom: 4px;
}

.pricing-note {
  font-size: 12px;
  color: var(--muted);
  margin-top: 8px;
}

/* Footer */

.site-footer {
  border-top: 1px solid rgba(148,163,184,0.2);
  padding: 16px 0 18px;
  background: #020617;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 13px;
  color: var(--muted);
}

.footer-logo {
  font-weight: 600;
  color: #e5e7eb;
}

.footer-links {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
}

.footer-links a:hover {
  color: #e5e7eb;
}

/* Larger screens */

@media (min-width: 768px) {
  .nav-links {
    display: flex;
  }

  .hero-inner {
    flex-direction: row;
    align-items: center;
  }

  .hero-copy {
    flex: 1.2;
  }

  .hero-visual {
    flex: 1;
    justify-content: flex-end;
  }

  .feature-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .steps {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .footer-inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
  }
}