body {
  margin: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #0f172a;
  color: #f8fafc;
}

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  transition: 0.3s;
  background: transparent;
}

.site-header.scrolled {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.35);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  height: 64px;
  padding: 0 24px;

  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 18px;
  font-weight: 800;
  text-decoration: none;
  background: linear-gradient(90deg, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  color: transparent;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-menu button {
  padding: 8px 16px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: #94a3b8;
  font-size: 14px;
  cursor: pointer;
  transition: 0.2s;
}

.nav-menu button:hover {
  color: #f8fafc;
  background: rgba(255, 255, 255, 0.08);
}

.mobile-menu-button {
  display: none;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: #f8fafc;
  font-size: 24px;
  cursor: pointer;
}

.mobile-menu-button:hover {
  background: rgba(255, 255, 255, 0.08);
}

.mobile-menu-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: none;
}

.mobile-menu-overlay.open {
  display: block;
}

.mobile-menu-bg {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.82);
  backdrop-filter: blur(16px);
}

.mobile-menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 256px;
  box-sizing: border-box;

  background: rgba(30, 41, 59, 0.98);
  border-left: 1px solid rgba(255, 255, 255, 0.08);
  padding: 24px;

  transform: translateX(100%);
  transition: 0.25s ease;
}

.mobile-menu-overlay.open .mobile-menu-panel {
  transform: translateX(0);
}

.mobile-menu-close-wrap {
  display: flex;
  justify-content: flex-end;
  margin-bottom: 32px;
}

.mobile-menu-close {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: #f8fafc;
  font-size: 28px;
  cursor: pointer;
}

.mobile-menu-close:hover {
  background: rgba(255, 255, 255, 0.08);
}

.mobile-menu-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mobile-menu-links button {
  width: 100%;
  padding: 12px 16px;
  border: none;
  border-radius: 10px;
  background: transparent;
  color: #94a3b8;
  text-align: left;
  font-size: 15px;
  cursor: pointer;
  transition: 0.2s;
}

.mobile-menu-links button:hover {
  color: #f8fafc;
  background: rgba(255, 255, 255, 0.08);
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .mobile-menu-button {
    display: block;
  }
}

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  text-align: center;
  padding: 0 24px;
}

.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 40px 40px;
  opacity: 0.4;
}

.noise {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(59,130,246,0.18), transparent 55%);
}

.content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  animation: fadeUp 0.9s ease-out;
}

.badge {
  display: inline-block;
  padding: 8px 16px;
  border-radius: 999px;
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.35);
  color: #93c5fd;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
}

h1 {
  font-size: clamp(48px, 8vw, 96px);
  margin: 0 0 16px;
  font-weight: 800;
  letter-spacing: -0.04em;
  background: linear-gradient(90deg, #f8fafc, #60a5fa, #a78bfa);
  -webkit-background-clip: text;
  color: transparent;
}

.english-name {
  font-family: monospace;
  font-size: clamp(20px, 3vw, 28px);
  color: #94a3b8;
  margin-bottom: 48px;
}

.buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.button {
  display: inline-block;
  padding: 16px 28px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.25s;
}

.button.primary {
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  color: white;
}

.button.secondary {
  border: 1px solid rgba(255,255,255,0.25);
  color: #f8fafc;
}

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

.arrow {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  color: #94a3b8;
  font-size: 28px;
  animation: bounce 2s infinite;
}

.section {
  min-height: 100vh;
  padding: 96px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.section h2 {
  font-size: 40px;
  margin-bottom: 24px;
}

.section p {
  color: #cbd5e1;
  font-size: 18px;
  line-height: 1.8;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes bounce {
  0%, 100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 10px);
  }
}