:root {
  --primary: #6b809c;
  --primary-dark: #40536d;
  --primary-soft: #eef3f8;
  --text: #1c2430;
  --muted: #657386;
  --white: #ffffff;
  --border: #dce4ee;
  --shadow: 0 20px 50px rgba(42, 60, 85, 0.14);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

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

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

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

.container {
  width: min(1120px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  background: var(--primary);
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

.header-inner {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: relative;
}

.logo-wrap {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}

.logo {
  width: 310px;
  height: auto;
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--white);
  font-weight: 700;
  font-size: 15px;
}

.menu-toggle,
.menu-button {
  display: none;
}

.nav a {
  opacity: 0.9;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.nav a:hover {
  opacity: 1;
  transform: translateY(-2px);
}

.hero {
  padding: 95px 0;
  background: linear-gradient(135deg, var(--primary-soft), #ffffff 58%, #f7f9fc);
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 50px;
  align-items: center;
}

.eyebrow {
  color: var(--primary);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

h1,
h2,
h3 {
  line-height: 1.12;
  color: var(--text);
}

h1 {
  font-size: clamp(42px, 6vw, 72px);
  letter-spacing: -0.05em;
  max-width: 780px;
}

h2 {
  font-size: clamp(30px, 4vw, 46px);
  letter-spacing: -0.04em;
}

h3 {
  font-size: 23px;
  margin-bottom: 12px;
}

.hero-text {
  max-width: 650px;
  margin-top: 24px;
  color: var(--muted);
  font-size: 19px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 52px;
  padding: 0 24px;
  border-radius: 999px;
  font-weight: 800;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-3px);
}

.btn.primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 14px 30px rgba(107, 128, 156, 0.35);
}

.btn.secondary {
  background: var(--white);
  color: var(--primary-dark);
  border: 1px solid var(--border);
}

.hero-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 32px;
  padding: 34px;
  box-shadow: var(--shadow);
  position: relative;
}

.hero-card::before {
  content: "";
  position: absolute;
  width: 140px;
  height: 140px;
  border-radius: 50%;
  background: rgba(107, 128, 156, 0.16);
  right: -34px;
  top: -34px;
}

.hero-card span {
  display: block;
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 18px;
}

.market-list {
  display: grid;
  gap: 14px;
  position: relative;
}

.market-list strong,
.marketplace-box div {
  background: var(--primary-soft);
  color: var(--primary-dark);
  border: 1px solid var(--border);
  padding: 18px 20px;
  border-radius: 18px;
  font-size: 20px;
}

.section {
  padding: 90px 0;
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 28px;
  padding: 30px;
  background: var(--white);
  box-shadow: 0 12px 35px rgba(42, 60, 85, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}

.icon {
  width: 54px;
  height: 54px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: var(--white);
  font-size: 27px;
  margin-bottom: 22px;
}

.card p,
.split-section p,
.contact-card p {
  color: var(--muted);
}

.split-section {
  padding: 90px 0;
  background: var(--primary-soft);
}

.split-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.split-grid p {
  margin-top: 18px;
  font-size: 18px;
}

.marketplace-box {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.marketplace-box div {
  background: var(--white);
  font-weight: 800;
  text-align: center;
}

.contact-section {
  padding: 90px 0;
}

.contact-card {
  text-align: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  border-radius: 34px;
  padding: 58px 30px;
  box-shadow: var(--shadow);
}

.contact-card h2,
.contact-card .eyebrow,
.contact-card p {
  color: var(--white);
}

.contact-card p {
  opacity: 0.88;
  margin-top: 14px;
}

.contact-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 30px;
}

.contact-links a {
  background: var(--white);
  color: var(--primary-dark);
  padding: 15px 22px;
  border-radius: 999px;
  font-weight: 800;
}

.footer {
  padding: 26px 0;
  background: #17202d;
  color: rgba(255, 255, 255, 0.75);
  font-size: 14px;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

@media (max-width: 850px) {
  .container {
    width: min(100% - 32px, 1120px);
  }

  .header-inner {
    min-height: 82px;
    justify-content: center;
    padding: 12px 0;
  }

  .logo-wrap {
    margin: 0 auto;
  }

  .logo {
    width: 260px;
  }

  .menu-button {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 42px;
    height: 42px;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 12px;
    padding: 9px;
  }

  .menu-button span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--white);
    border-radius: 999px;
  }

  .nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 18px;
    box-shadow: var(--shadow);
    color: var(--primary-dark);
    text-align: center;
  }

  .nav a {
    padding: 14px;
    border-radius: 12px;
  }

  .nav a:hover {
    background: var(--primary-soft);
    transform: none;
  }

  .menu-toggle:checked ~ .nav {
    display: flex;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .hero {
    padding: 70px 0;
  }

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

  .hero-card {
    padding: 26px;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 24px, 1120px);
  }

  .header-inner {
    min-height: 76px;
  }

  .logo {
    width: 220px;
  }

  .menu-button {
    width: 38px;
    height: 38px;
    border-radius: 10px;
  }

  h1 {
    font-size: clamp(36px, 12vw, 48px);
  }

  .hero-actions,
  .contact-links,
  .marketplace-box {
    grid-template-columns: 1fr;
    display: grid;
  }

  .btn,
  .contact-links a {
    width: 100%;
  }
}

@media (max-width: 380px) {
  .logo {
    width: 190px;
  }
}