:root {
  --ink: #13202f;
  --muted: #627083;
  --line: #dce3ea;
  --paper: #ffffff;
  --soft: #f6f8fa;
  --brand: #13466a;
  --brand-dark: #0f2f49;
  --accent: #2f8f7b;
  --gold: #d6a84e;
  --shadow: 0 18px 48px rgba(20, 36, 54, .10);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, Arial, sans-serif;
  color: var(--ink);
  background: var(--paper);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px clamp(20px, 5vw, 72px);
  background: rgba(255, 255, 255, .94);
  border-bottom: 1px solid rgba(220, 227, 234, .84);
  backdrop-filter: blur(16px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 750;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  color: #fff;
  background: var(--brand-dark);
  border-radius: 8px;
}

.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
}

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

.header-cta,
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 18px;
  border-radius: 8px;
  font-weight: 650;
  font-size: 14px;
}

.header-cta,
.btn.primary {
  color: #fff;
  background: var(--brand-dark);
  box-shadow: 0 12px 28px rgba(15, 47, 73, .22);
}

.btn.secondary {
  color: var(--brand-dark);
  background: #fff;
  border: 1px solid var(--line);
}

.hero {
  display: flex;
  align-items: center;
  min-height: calc(100vh - 70px);
  padding: clamp(52px, 8vw, 96px) clamp(20px, 5vw, 72px);
  background:
    linear-gradient(90deg, rgba(7, 18, 31, .92) 0%, rgba(8, 22, 35, .78) 43%, rgba(8, 22, 35, .32) 72%, rgba(8, 22, 35, .14) 100%),
    url("assets/hero-car.png") center right / cover no-repeat;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 750;
  letter-spacing: .09em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 690px;
  margin-bottom: 20px;
  font-size: clamp(34px, 4.2vw, 56px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 16px;
  font-size: clamp(26px, 3vw, 40px);
  line-height: 1.15;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 18px;
  line-height: 1.25;
}

p {
  color: var(--muted);
  line-height: 1.66;
}

.hero .eyebrow {
  color: #b9d2e3;
}

.hero h1,
.hero .hero-text {
  color: #fff;
}

.hero-text {
  max-width: 640px;
  margin-bottom: 28px;
  font-size: 17px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 28px;
}

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

.proof-row span {
  display: inline-flex;
  min-height: 36px;
  align-items: center;
  padding: 0 12px;
  color: #e8f2f8;
  background: rgba(255, 255, 255, .10);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 650;
}

.cost-grid ul {
  margin: 0;
  padding-left: 18px;
}

.section {
  padding: clamp(56px, 7vw, 88px) clamp(20px, 5vw, 72px);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(320px, 1.1fr);
  gap: 40px;
  align-items: start;
  margin-bottom: 30px;
}

.section-heading.compact {
  display: block;
  max-width: 780px;
}

.intro-grid,
.module-grid,
.cost-grid {
  display: grid;
  gap: 16px;
}

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

.intro-grid article,
.module-grid article,
.cost-grid article {
  padding: 24px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.intro {
  background: #fff;
}

.modules,
.timeline {
  background: var(--soft);
}

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

.module-grid span {
  display: inline-flex;
  margin-bottom: 14px;
  color: var(--accent);
  font-weight: 750;
}

.investment {
  background: #101c2b;
}

.investment h2,
.investment h3 {
  color: #fff;
}

.investment p,
.investment li {
  color: #c7d2df;
}

.price-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 330px;
  gap: 26px;
  align-items: center;
  margin-bottom: 20px;
  padding: 30px;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 8px;
}

.price-panel p {
  max-width: 760px;
}

.price-box {
  padding: 26px;
  background: #fff;
  border-radius: 8px;
  text-align: center;
}

.price-box span,
.price-box small {
  display: block;
  color: var(--muted);
  font-weight: 700;
}

.price-box strong {
  display: block;
  margin: 8px 0;
  color: var(--brand-dark);
  font-size: clamp(30px, 3.2vw, 40px);
  line-height: 1;
}

.cost-grid {
  grid-template-columns: repeat(4, 1fr);
}

.cost-grid article {
  background: rgba(255, 255, 255, .07);
  border-color: rgba(255, 255, 255, .12);
}

.cost-grid li {
  margin-bottom: 10px;
}

.support-price {
  margin-bottom: 10px;
  color: var(--gold) !important;
  font-size: 20px;
  font-weight: 800;
  line-height: 1.25;
}

.timeline-list {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 14px;
}

.timeline-list article {
  min-height: 230px;
  padding: 22px;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
}

.timeline-list span {
  display: block;
  margin-bottom: 18px;
  color: var(--brand);
  font-size: 13px;
  font-weight: 750;
}

@media (max-width: 1080px) {
  .section-heading,
  .price-panel {
    grid-template-columns: 1fr;
  }

  .intro-grid,
  .module-grid,
  .cost-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .timeline-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 760px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav {
    width: 100%;
    overflow-x: auto;
    padding-bottom: 4px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    background:
      linear-gradient(90deg, rgba(7, 18, 31, .92) 0%, rgba(8, 22, 35, .82) 100%),
      url("assets/hero-car.png") center / cover no-repeat;
  }

  .intro-grid,
  .module-grid,
  .cost-grid,
  .timeline-list {
    grid-template-columns: 1fr;
  }

  .price-panel {
    padding: 24px;
  }
}