:root {
  --bg: #0d1117;
  --bg-soft: #111827;
  --card: #161b22;
  --text: #f4f7fb;
  --muted: #9ca3af;
  --line: rgba(255, 255, 255, 0.12);
  --accent: #1f6feb;
  --accent-soft: rgba(31, 111, 235, 0.16);
  --radius: 22px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(31, 111, 235, 0.25), transparent 35%),
    linear-gradient(135deg, #0d1117 0%, #111827 100%);
  color: var(--text);
  line-height: 1.6;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(16px);
  background: rgba(13, 17, 23, 0.78);
  border-bottom: 1px solid var(--line);
}

.navbar {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 170px;
}

.brand-logo {
  display: block;
  width: 190px;
  max-height: 58px;
  object-fit: contain;
}

.hero-logo {
  display: block;
  width: 100%;
  max-width: 340px;
  margin-bottom: 24px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
  margin: 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

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

.nav-button {
  padding: 10px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--text);
}

.nav-toggle {
  display: none;
  border: 1px solid var(--line);
  background: transparent;
  color: var(--text);
  border-radius: 12px;
  padding: 8px 12px;
  font-size: 1.1rem;
}

.hero {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  min-height: calc(100vh - 76px);
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  align-items: center;
  gap: 48px;
  padding: 80px 0;
}

.eyebrow {
  margin: 0 0 12px;
  color: #7dd3fc;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.78rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  line-height: 1.1;
  margin-top: 0;
}

h1 {
  font-size: clamp(3.2rem, 10vw, 7.5rem);
  margin-bottom: 22px;
  letter-spacing: -0.08em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.04em;
  margin-bottom: 24px;
}

h3 {
  font-size: 1.25rem;
}

.hero-subtitle {
  max-width: 680px;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  margin-bottom: 34px;
}

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

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  border: 1px solid var(--line);
}

.button.primary {
  background: var(--accent);
  color: white;
  border-color: transparent;
}

.button.secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.hero-card,
.card,
.project-item,
.contact,
.legal-card {
  background: rgba(22, 27, 34, 0.82);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card {
  padding: 28px;
}

.hero-card ul {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
}

.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: 80px 0;
}

.section-heading {
  max-width: 740px;
  margin-bottom: 32px;
}

.grid {
  display: grid;
  gap: 22px;
}

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

.card {
  padding: 26px;
}

.card p,
.project-item p,
.split p,
.contact p,
.legal-card p,
.legal-card li {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 48px;
  align-items: start;
}

.project-list {
  display: grid;
  gap: 16px;
}

.project-item {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  padding: 22px;
}

.project-item span {
  color: var(--accent);
  font-weight: 900;
  font-size: 1.4rem;
}

.contact {
  text-align: center;
  padding: 56px 28px;
  margin-bottom: 80px;
}

.contact p {
  max-width: 620px;
  margin: 0 auto 28px;
}

.legal-page {
  width: min(920px, calc(100% - 32px));
  margin: 0 auto;
  padding: 72px 0 96px;
}

.legal-card {
  padding: clamp(26px, 5vw, 52px);
}

.legal-card h1 {
  font-size: clamp(2.4rem, 6vw, 4.6rem);
  letter-spacing: -0.06em;
}

.legal-card h2 {
  font-size: clamp(1.4rem, 3vw, 2rem);
  margin-top: 42px;
}

.legal-card a {
  color: #7dd3fc;
}

.notice {
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid var(--line);
  background: var(--accent-soft);
  color: var(--text);
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 28px 16px;
  color: var(--muted);
  display: flex;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
}

.site-footer p {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  margin: 0;
}

.site-footer a {
  color: var(--text);
}

@media (max-width: 980px) {
  .nav-links {
    gap: 14px;
    font-size: 0.9rem;
  }

  .brand-logo {
    width: 160px;
  }
}

@media (max-width: 860px) {
  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 76px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 14px;
    background: rgba(13, 17, 23, 0.96);
    border: 1px solid var(--line);
    border-radius: 18px;
  }

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

  .nav-links a {
    display: block;
    padding: 12px;
  }

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

  .hero {
    min-height: auto;
    padding-top: 56px;
  }

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

@media (max-width: 560px) {
  .cards {
    grid-template-columns: 1fr;
  }

  .project-item {
    grid-template-columns: 1fr;
  }

  .site-footer {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .site-footer p {
    justify-content: center;
  }
}