:root {
  --color-dark: #0f172a;
  --color-mid: #475569;
  --color-light: #f8fafc;
  --color-accent: #fb923c;
  --color-accent-dark: #ea580c;
  --color-card: rgba(15, 23, 42, 0.05);
  --max-width: 1100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-dark);
  background: var(--color-light);
}

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

a:hover,
a:focus {
  text-decoration: underline;
}

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

.site-header {
  background: radial-gradient(120% 120% at 10% 0%, rgba(251, 146, 60, 0.25) 0%, transparent 55%),
    linear-gradient(160deg, #0f172a 0%, #1e293b 70%, #334155 100%);
  color: #f8fafc;
  padding: 24px 20px 80px;
}

.top-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto 48px;
}

.brand {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.05em;
  color: #f1f5f9;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  font-weight: 500;
  color: #e2e8f0;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a:focus {
  color: white;
  text-decoration: none;
}

.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  background: transparent;
  border: 1px solid rgba(226, 232, 240, 0.4);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
}

.menu-bar {
  display: block;
  width: 24px;
  height: 2px;
  background: #e2e8f0;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.hero {
  display: grid;
  gap: 48px;
  max-width: var(--max-width);
  margin: 0 auto;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  line-height: 1.1;
  margin-bottom: 20px;
}

.hero .eyebrow {
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(248, 250, 252, 0.8);
}

.hero .lead {
  color: rgba(248, 250, 252, 0.85);
  max-width: 560px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn.primary {
  background: var(--color-accent);
  color: #0f172a;
  box-shadow: 0 15px 35px rgba(251, 146, 60, 0.35);
}

.btn.primary:hover,
.btn.primary:focus {
  background: var(--color-accent-dark);
  text-decoration: none;
  transform: translateY(-2px);
}

.btn.ghost {
  border: 1px solid rgba(248, 250, 252, 0.5);
  color: rgba(248, 250, 252, 0.9);
  background: rgba(15, 23, 42, 0.2);
}

.btn.ghost:hover,
.btn.ghost:focus {
  border-color: rgba(248, 250, 252, 0.8);
  text-decoration: none;
}

.hero-card {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(148, 163, 184, 0.25);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(12px);
  max-width: 360px;
  justify-self: end;
}

.hero-card__title {
  font-weight: 600;
  margin-bottom: 16px;
  color: #f8fafc;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.9rem;
}

.hero-card__list {
  margin: 0;
  padding-left: 20px;
  color: rgba(226, 232, 240, 0.9);
}

main {
  padding: 0 20px 80px;
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 72px 0;
  color: var(--color-dark);
}

.section.accent {
  background: white;
  border-radius: 32px;
  padding: 72px 40px;
  box-shadow: 0 30px 60px -35px rgba(15, 23, 42, 0.35);
}

.section-header {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-eyebrow {
  display: inline-block;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-size: 0.85rem;
  color: var(--color-accent-dark);
  font-weight: 600;
  margin-bottom: 12px;
}

.section h2 {
  font-size: clamp(2rem, 3.2vw, 2.6rem);
  line-height: 1.2;
  margin-bottom: 16px;
}

.card-grid {
  display: grid;
  gap: 28px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.card {
  background: white;
  border-radius: 20px;
  padding: 28px;
  border: 1px solid rgba(15, 23, 42, 0.05);
  box-shadow: 0 18px 30px -20px rgba(15, 23, 42, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 25px 65px -35px rgba(15, 23, 42, 0.4);
}

.section-content.narrow {
  max-width: 860px;
  margin: 0 auto;
}

.split {
  display: grid;
  gap: 32px;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

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

.feature-list li {
  position: relative;
  padding-left: 28px;
  color: var(--color-mid);
  font-weight: 500;
}

.feature-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--color-accent);
  box-shadow: 0 0 0 4px rgba(251, 146, 60, 0.25);
}

.contact-card {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  background: white;
  padding: 32px;
  border-radius: 24px;
  box-shadow: 0 25px 80px -45px rgba(15, 23, 42, 0.4);
}

.contact-info h3 {
  margin-top: 0;
  margin-bottom: 8px;
}

.contact-link {
  font-weight: 600;
  color: var(--color-accent-dark);
}

.contact-link:hover,
.contact-link:focus {
  color: var(--color-accent);
  text-decoration: none;
}

.contact-cta {
  align-self: center;
  text-align: center;
}

.contact-highlight {
  font-weight: 600;
  margin-bottom: 16px;
}

.site-footer {
  text-align: center;
  padding: 40px 20px 60px;
  color: var(--color-mid);
  background: transparent;
}

@media (max-width: 900px) {
  .hero {
    justify-items: start;
  }

  .hero-card {
    justify-self: stretch;
  }
}

@media (max-width: 768px) {
  .top-nav {
    position: relative;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 60px;
    right: 0;
    left: 0;
    flex-direction: column;
    background: rgba(15, 23, 42, 0.95);
    padding: 28px;
    gap: 20px;
    border-radius: 16px;
    border: 1px solid rgba(148, 163, 184, 0.3);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  body.js-nav-ready .nav-links {
    opacity: 0;
    pointer-events: none;
    transform: translateY(-10px);
  }

  body.js-nav-ready .nav-links.is-open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
  }

  .hero {
    margin-top: 40px;
  }
}

@media (max-width: 600px) {
  .site-header {
    padding-bottom: 64px;
  }

  .hero-card {
    padding: 20px;
  }

  .card {
    padding: 24px;
  }

  .contact-card {
    padding: 24px;
  }
}