*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #0b0b0c;
  --bg-soft: #111113;
  --surface: rgba(28, 28, 30, 0.78);
  --surface-strong: #17171a;
  --text: #f5f5f7;
  --muted: #a1a1a6;
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.12);
  --accent: #0a84ff;
  --accent-soft: rgba(10, 132, 255, 0.16);
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.34);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --container: 1120px;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top center, rgba(10, 132, 255, 0.14), transparent 26%),
    linear-gradient(180deg, #0b0b0c 0%, #101013 100%);
}

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

button {
  font: inherit;
}

.nav {
  position: sticky;
  top: 0;
  z-index: 30;
  padding: 12px 12px 0;
  backdrop-filter: blur(18px);
}

.nav-inner {
  max-width: var(--container);
  margin: 0 auto;
  min-height: 64px;
  padding: 12px 14px;
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(15, 15, 18, 0.7);
  box-shadow: var(--shadow);
}

.logo {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.03em;
  white-space: nowrap;
}

.desktop-nav,
.desktop-cta {
  display: none;
}

.menu-toggle {
  width: 44px;
  height: 44px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.02);
  color: var(--text);
  cursor: pointer;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  margin: 0 auto;
  background: var(--text);
  border-radius: 999px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.menu-open .menu-toggle span:first-child {
  transform: translateY(4px) rotate(45deg);
}

.menu-open .menu-toggle span:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

.mobile-menu {
  max-width: var(--container);
  margin: 8px auto 0;
  padding: 0 6px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.28s ease;
}

.menu-open .mobile-menu {
  max-height: 320px;
}

.mobile-menu__links {
  display: grid;
  gap: 10px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(15, 15, 18, 0.92);
  box-shadow: var(--shadow);
}

.mobile-menu__links a {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid transparent;
}

.mobile-menu__links a:hover {
  border-color: var(--line);
}

.mobile-menu__cta {
  margin-top: 4px;
}

.hero,
.section,
.contact {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 16px;
  padding-right: 16px;
}

.hero {
  padding-top: 72px;
  padding-bottom: 48px;
  text-align: center;
}

.hero-badge,
.section-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  padding: 0 14px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.hero h1,
.section h2,
.contact h2 {
  margin: 18px 0 0;
  letter-spacing: -0.05em;
  line-height: 0.95;
  font-weight: 800;
}

.hero h1 {
  font-size: clamp(38px, 10vw, 76px);
}

.hero h1 span {
  color: #8e8e93;
}

.hero p,
.card p,
.contact p {
  margin: 18px auto 0;
  max-width: 720px;
  color: var(--muted);
  font-size: clamp(15px, 4vw, 19px);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 26px;
  align-items: stretch;
}

.btn-primary,
.btn-secondary {
  display: inline-flex;
  min-height: 52px;
  align-items: center;
  justify-content: center;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 600;
  transition: transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 12px 24px rgba(10, 132, 255, 0.28);
}

.btn-secondary {
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
}

.btn-primary:hover,
.btn-secondary:hover {
  transform: translateY(-1px);
}

.section {
  padding-top: 28px;
  padding-bottom: 20px;
}

.section-head {
  text-align: center;
  margin-bottom: 18px;
}

.section h2,
.contact h2 {
  font-size: clamp(30px, 8vw, 56px);
}

.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 18px;
}

.card {
  padding: 22px 18px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02)),
    var(--surface);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0;
  font-size: clamp(22px, 6vw, 30px);
  line-height: 1.05;
  letter-spacing: -0.04em;
}

.card p {
  margin: 10px 0 0;
  font-size: 15px;
}

.contact {
  padding-top: 34px;
  padding-bottom: 42px;
}

.contact-shell {
  padding: 24px 18px;
  border-radius: 30px;
  background:
    radial-gradient(circle at top center, rgba(10, 132, 255, 0.12), transparent 34%),
    linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.02)),
    var(--surface-strong);
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  text-align: center;
}

.contact-list {
  display: grid;
  gap: 10px;
  margin-top: 22px;
}

.contact-list a {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line);
  font-size: 15px;
  overflow-wrap: anywhere;
}

.contact-actions {
  margin-top: 18px;
}

@media (min-width: 640px) {
  .hero {
    padding-top: 88px;
    padding-bottom: 56px;
  }

  .hero-actions {
    flex-direction: row;
    justify-content: center;
    align-items: center;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    min-width: 200px;
  }

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

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

  .contact-actions {
    justify-content: center;
  }
}

@media (min-width: 920px) {
  .nav {
    padding: 16px 16px 0;
  }

  .nav-inner {
    grid-template-columns: auto 1fr auto;
    padding: 12px 18px;
  }

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

  .desktop-nav {
    display: flex;
    justify-content: center;
    gap: 28px;
    color: var(--muted);
    font-size: 14px;
  }

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

  .desktop-cta {
    display: inline-flex;
  }

  .hero,
  .section,
  .contact {
    padding-left: 20px;
    padding-right: 20px;
  }

  .hero {
    padding-top: 110px;
    padding-bottom: 74px;
  }

  .cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
  }

  .contact-shell {
    padding: 42px 28px;
  }

  .contact-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 380px) {
  .logo {
    font-size: 15px;
  }

  .hero {
    padding-top: 58px;
  }

  .hero h1 {
    letter-spacing: -0.06em;
  }

  .btn-primary,
  .btn-secondary {
    min-height: 50px;
    padding: 0 18px;
  }

  .card,
  .contact-shell {
    padding-left: 16px;
    padding-right: 16px;
  }
}