* {
  box-sizing: border-box;
}

:root {
  --bg: #0f1117;
  --bg-soft: #141823;
  --panel: #171d29;
  --panel-soft: #1d2433;
  --text: #ffffff;
  --muted: #aeb7c2;
  --primary: #00d2ff;
  --primary-soft: rgba(0, 210, 255, 0.14);
  --border: rgba(255, 255, 255, 0.09);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.32);
}

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(0, 210, 255, 0.16), transparent 34rem),
    radial-gradient(circle at top right, rgba(123, 92, 255, 0.12), transparent 30rem),
    var(--bg);
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

a {
  color: inherit;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(15, 17, 23, 0.86);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(14px);
  z-index: 10;
}

.brand {
  font-weight: 900;
  letter-spacing: 0.08em;
  text-decoration: none;
}

.site-nav {
  display: flex;
  gap: 1.4rem;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

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

.language-switcher {
  display: flex;
  gap: 0.4rem;
}

.language-switcher button {
  background: transparent;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 0.35rem 0.6rem;
  border-radius: 999px;
  cursor: pointer;
}

.language-switcher button.active {
  color: var(--bg);
  background: var(--primary);
  border-color: var(--primary);
}

.section {
  padding: 7rem 2rem;
}

.hero {
  min-height: 100vh;
  display: grid;
  place-content: center;
  text-align: center;
  padding-top: 9rem;
}

.hero-content,
.section-inner {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.78rem;
  font-weight: 800;
}

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

h1 {
  font-size: clamp(3.4rem, 9vw, 8rem);
  line-height: 0.95;
  margin-bottom: 1.4rem;
  letter-spacing: 0.08em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1.05;
  max-width: 850px;
  margin-bottom: 1.2rem;
}

h3 {
  font-size: 1.18rem;
  margin-bottom: 0.75rem;
}

p {
  font-size: 1.08rem;
  line-height: 1.7;
  color: var(--muted);
}

.hero-subtitle {
  max-width: 760px;
  margin: 0 auto 2rem;
  font-size: clamp(1.2rem, 2vw, 1.55rem);
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 1.2rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  border: 1px solid var(--border);
}

.button.primary {
  background: var(--primary);
  color: var(--bg);
  border-color: var(--primary);
}

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

.cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.card,
.values-list > div,
.roadmap-list li {
  background: linear-gradient(180deg, var(--panel), var(--panel-soft));
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 1.35rem;
  box-shadow: var(--shadow);
}

.card p,
.values-list p {
  font-size: 0.98rem;
  margin-bottom: 0;
}

.values-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.roadmap-list {
  display: grid;
  gap: 0.85rem;
  padding-left: 1.2rem;
  margin-top: 2rem;
  color: var(--muted);
}

.roadmap-list li {
  padding-left: 1.2rem;
}

.contact-section {
  padding-bottom: 5rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem;
  text-align: center;
  background: rgba(15, 17, 23, 0.7);
}

.site-footer p {
  margin: 0;
  font-size: 0.95rem;
}

@media (max-width: 900px) {
  .cards,
  .values-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-nav {
    gap: 0.85rem;
  }
}

@media (max-width: 760px) {
  .site-header {
    height: auto;
    min-height: 76px;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 1rem;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: center;
    flex-wrap: wrap;
  }

  .section {
    padding: 5.5rem 1rem;
  }

  .hero {
    padding-top: 12rem;
  }

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

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
}

.brand img {
  width: 56px;
  height: 56px;
  border-radius: 14px;
}