* {
  box-sizing: border-box;
}

:root {
  --navy: #0D1B2A;
  --blue: #1B3A6D;
  --orange: #F5A623;
  --gray: #6B7280;
  --light: #F4F6F8;
  --white: #FFFFFF;
  --dark: #08111d;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--navy);
  background: var(--white);
  line-height: 1.6;
}

.container {
  width: min(1160px, 92%);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(13, 27, 42, 0.96);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.nav {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand img {
  height: 58px;
  width: auto;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
}

.nav-links a {
  color: var(--white);
  text-decoration: none;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: .4px;
}

.menu-btn {
  display: none;
  background: none;
  border: 0;
  color: white;
  font-size: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--orange);
  color: var(--navy);
  border: 2px solid var(--orange);
  border-radius: 2px;
  padding: 14px 24px;
  font-weight: 800;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: .6px;
  transition: all .2s ease;
  cursor: pointer;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(0,0,0,.18);
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,.7);
}

.btn-small {
  padding: 9px 16px;
  color: var(--navy) !important;
}

.hero {
  min-height: 720px;
  position: relative;
  display: flex;
  align-items: center;
  color: var(--white);
  background:
    linear-gradient(105deg, rgba(8,17,29,.98), rgba(13,27,42,.88) 48%, rgba(13,27,42,.55)),
    radial-gradient(circle at 70% 45%, rgba(245,166,35,.18), transparent 30%),
    url('assets/prime-chain-logo.png');
  background-size: cover;
  background-position: center;
}

.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 50px;
  align-items: center;
}

.eyebrow,
.section-label {
  display: inline-block;
  color: var(--orange);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 1.8px;
  font-size: 13px;
  margin-bottom: 14px;
}

.hero h1 {
  font-size: clamp(46px, 7vw, 86px);
  line-height: .95;
  margin: 0 0 24px;
  max-width: 760px;
  letter-spacing: -2px;
}

.hero p {
  font-size: 20px;
  max-width: 680px;
  color: rgba(255,255,255,.82);
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 34px;
}

.hero-card {
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.18);
  border-left: 5px solid var(--orange);
  backdrop-filter: blur(10px);
  padding: 34px;
  box-shadow: 0 28px 70px rgba(0,0,0,.25);
}

.hero-card h3 {
  margin-top: 0;
  font-size: 28px;
}

.hero-card ul {
  padding-left: 18px;
  color: rgba(255,255,255,.86);
}

.section {
  padding: 94px 0;
}

.two-col {
  display: grid;
  grid-template-columns: .9fr 1.1fr;
  gap: 60px;
  align-items: start;
}

h2 {
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.05;
  margin: 0 0 20px;
  letter-spacing: -1.2px;
}

.intro p,
.advantage p,
.contact p {
  font-size: 19px;
  color: #425066;
}

.dark {
  background: var(--navy);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.dark::after {
  content: "";
  position: absolute;
  right: -150px;
  top: -150px;
  width: 420px;
  height: 420px;
  background: var(--orange);
  opacity: .08;
  transform: rotate(20deg);
}

.cards {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
  margin-top: 38px;
}

.card {
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.12);
  padding: 30px;
  min-height: 250px;
}

.card .icon {
  color: var(--orange);
  font-weight: 900;
  font-size: 30px;
  margin-bottom: 25px;
}

.card h3 {
  font-size: 22px;
  margin: 0 0 12px;
}

.card p {
  color: rgba(255,255,255,.75);
  margin: 0;
}

.industries {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 36px;
}

.industries div {
  background: var(--light);
  border-bottom: 4px solid var(--orange);
  padding: 30px 18px;
  text-align: center;
  font-weight: 800;
}

.advantage {
  background:
    linear-gradient(105deg, rgba(244,246,248,.98), rgba(244,246,248,.92)),
    radial-gradient(circle at bottom right, rgba(245,166,35,.22), transparent 35%);
}

.benefits {
  display: grid;
  gap: 16px;
}

.benefits div {
  display: flex;
  gap: 20px;
  align-items: center;
  background: white;
  padding: 22px;
  border-left: 5px solid var(--orange);
  box-shadow: 0 18px 35px rgba(13,27,42,.08);
}

.benefits strong {
  color: var(--orange);
  font-size: 28px;
}

.benefits span {
  font-weight: 800;
  font-size: 18px;
}

.cta {
  background: var(--navy);
  color: white;
  padding: 70px 0;
}

.cta-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  border-left: 6px solid var(--orange);
  padding-left: 34px;
}

.cta h2 {
  max-width: 720px;
  margin-bottom: 10px;
}

.cta p {
  margin: 0;
  color: rgba(255,255,255,.75);
}

.contact-grid {
  display: grid;
  grid-template-columns: .8fr 1fr;
  gap: 60px;
}

.contact-info {
  margin-top: 30px;
  padding: 24px;
  background: var(--light);
  border-left: 5px solid var(--orange);
}

.form {
  background: var(--navy);
  padding: 34px;
  color: white;
  display: grid;
  gap: 16px;
}

.form label {
  display: grid;
  gap: 8px;
  font-weight: 700;
}

.form input,
.form select,
.form textarea {
  width: 100%;
  border: 1px solid rgba(255,255,255,.2);
  background: rgba(255,255,255,.08);
  color: white;
  padding: 13px 14px;
  font: inherit;
}

.form option {
  color: var(--navy);
}

.form textarea {
  resize: vertical;
}

.footer {
  background: #06101c;
  color: white;
  padding: 45px 0;
}

.footer-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.footer img {
  width: 260px;
  max-width: 100%;
}

.footer p {
  color: rgba(255,255,255,.72);
  margin-bottom: 0;
}

@media (max-width: 900px) {
  .menu-btn {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 82px;
    left: 0;
    right: 0;
    background: var(--navy);
    display: none;
    flex-direction: column;
    align-items: flex-start;
    padding: 24px 4%;
  }

  .menu-open .nav-links {
    display: flex;
  }

  .hero-grid,
  .two-col,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 110px 0 70px;
  }

  .cards {
    grid-template-columns: 1fr;
  }

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

  .cta-box,
  .footer-grid {
    flex-direction: column;
    align-items: flex-start;
  }
}