:root {
  --bg-page: #f5f7fb;
  --bg-elevated: #ffffff;
  --bg-muted: #ebf1fd;
  --text-primary: #112240;
  --text-secondary: #445b78;
  --accent: #2563eb;
  --accent-soft: rgba(37, 99, 235, 0.08);
  --shadow-soft: 0 20px 45px rgba(15, 23, 42, 0.08);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --max-width: 1120px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.6;
}

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

a:hover {
  color: var(--accent);
}

header {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, #0f172a, #1d4ed8 55%, #38bdf8 100%);
  color: #f8fbff;
}

header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(255, 255, 255, 0.28), transparent 45%),
              radial-gradient(circle at 80% 10%, rgba(59, 130, 246, 0.35), transparent 50%);
  pointer-events: none;
}

nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 24px 24px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 1;
}

.logo {
  font-weight: 600;
  font-size: 1.05rem;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}

.logo svg {
  width: 28px;
  height: 28px;
  color: #a5d8ff;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 1.8rem;
  margin: 0;
  padding: 0;
  font-size: 0.98rem;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(15, 23, 42, 0.15);
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  color: #f8fbff;
  font-weight: 500;
  transition: background 0.2s ease;
}

.nav-cta:hover {
  background: rgba(15, 23, 42, 0.28);
}

.hero {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 96px 24px 110px;
  display: grid;
  gap: 60px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.hero h1 {
  font-size: clamp(2.6rem, 3.4vw + 1.8rem, 3.9rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}

.hero p {
  font-size: 1.08rem;
  color: rgba(248, 251, 255, 0.88);
  max-width: 540px;
}

.hero-actions {
  margin-top: 2.2rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.button {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.button-primary {
  background: #f8fbff;
  color: #0f172a;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.18);
}

.button-primary:hover {
  transform: translateY(-1px);
}

.button-secondary {
  background: rgba(15, 23, 42, 0.25);
  color: #f8fbff;
}

.hero-card {
  background: rgba(15, 23, 42, 0.6);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.16);
  backdrop-filter: blur(14px);
  display: grid;
  gap: 20px;
}

.hero-card h2 {
  margin: 0;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: rgba(148, 177, 255, 0.9);
}

.hero-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.hero-card li {
  padding: 14px;
  border-radius: var(--radius-md);
  background: rgba(15, 23, 42, 0.38);
  border: 1px solid rgba(148, 163, 184, 0.16);
  font-size: 0.98rem;
}

main section {
  margin: 0 auto;
  max-width: var(--max-width);
  padding: 96px 24px;
}

.section-header {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  max-width: 700px;
}

.section-kicker {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
}

.section-title {
  font-size: clamp(1.9rem, 2.1vw + 1.6rem, 3rem);
  letter-spacing: -0.02em;
  margin: 0;
}

.section-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin: 0;
}

.feature-grid {
  margin-top: 54px;
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: var(--shadow-soft);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--accent-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.card h3 {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 600;
}

.card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.98rem;
}

.feature-list {
  display: grid;
  gap: 18px;
  margin-top: 40px;
}

.feature-item {
  display: grid;
  gap: 10px;
}

.feature-item strong {
  font-size: 1.05rem;
  font-weight: 600;
}

.detail-grid {
  margin-top: 54px;
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
}

.detail-grid .card {
  position: relative;
  overflow: hidden;
}

.detail-grid .card::after {
  content: '';
  position: absolute;
  inset: auto 24px 24px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.08), transparent 70%);
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  background: var(--bg-muted);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.9rem;
}

.timeline {
  margin-top: 54px;
  display: grid;
  gap: 20px;
}

.timeline-step {
  display: grid;
  gap: 10px;
  background: var(--bg-elevated);
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: var(--shadow-soft);
}

.timeline-step h4 {
  margin: 0;
  font-size: 1.05rem;
}

.testimonial {
  margin-top: 54px;
  background: var(--bg-elevated);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid rgba(15, 23, 42, 0.08);
  box-shadow: var(--shadow-soft);
  display: grid;
  gap: 18px;
}

.testimonial p {
  margin: 0;
  font-size: 1.05rem;
  color: var(--text-secondary);
}

.cta-section {
  margin: 0;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.92), rgba(37, 99, 235, 0.92));
  color: #f8fbff;
  padding: 96px 24px;
}

.cta-container {
  max-width: var(--max-width);
  margin: 0 auto;
  background: rgba(15, 23, 42, 0.65);
  border-radius: var(--radius-lg);
  padding: 56px;
  border: 1px solid rgba(148, 163, 184, 0.18);
  display: grid;
  gap: 24px;
  justify-items: start;
}

.cta-container h2 {
  margin: 0;
  font-size: clamp(2rem, 2.2vw + 1.8rem, 3rem);
  letter-spacing: -0.03em;
}

.cta-container p {
  margin: 0;
  color: rgba(248, 251, 255, 0.8);
  font-size: 1.05rem;
  max-width: 640px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

footer {
  padding: 40px 24px 60px;
  background: #0f172a;
  color: rgba(248, 251, 255, 0.72);
}

footer .footer-content {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  gap: 18px;
}

footer a {
  color: rgba(248, 251, 255, 0.72);
}

footer a:hover {
  color: #f8fbff;
}

@media (max-width: 720px) {
  nav {
    flex-direction: column;
    gap: 1.2rem;
    align-items: flex-start;
  }

  nav ul {
    flex-wrap: wrap;
  }

  .hero {
    padding-top: 72px;
    padding-bottom: 88px;
  }

  .cta-container {
    padding: 40px 32px;
  }
}