*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

:root {
  --bg-1: #0a0f1c;
  --bg-2: #131a2c;
  --accent: #8affb4;
  --accent-soft: #8affb466;
  --text: #ffffff;
  --muted: #a8b0c2;
  --card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg-1);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(600px 400px at 80% 10%, rgba(138, 255, 180, 0.10), transparent 60%),
    radial-gradient(500px 500px at 10% 90%, rgba(138, 255, 180, 0.08), transparent 60%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-2) 100%);
}

.container {
  position: relative;
  z-index: 1;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

header {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 0;
}

.logo {
  font-weight: 900;
  font-size: 22px;
  letter-spacing: 4px;
  color: var(--text);
  text-decoration: none;
}
.logo span { color: var(--accent); }

.menu-btn {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--card);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s ease;
}
.menu-btn:hover { background: rgba(255,255,255,0.08); }
.menu-btn span {
  display: block;
  width: 18px;
  height: 2px;
  background: #fff;
  position: relative;
}
.menu-btn span::before,
.menu-btn span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 18px;
  height: 2px;
  background: #fff;
}
.menu-btn span::before { top: -6px; }
.menu-btn span::after  { top: 6px; }

.hero {
  min-height: calc(100vh - 100px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 0 80px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 100px;
  background: var(--card);
  border: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 32px;
}
.badge .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px var(--accent);
  animation: pulse 1.8s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

h1 {
  font-size: clamp(36px, 6.5vw, 80px);
  font-weight: 800;
  line-height: 1.05;
  margin: 0 0 28px;
  letter-spacing: -0.02em;
  max-width: 1000px;
}
h1 .accent {
  color: var(--accent);
  text-shadow: 0 0 40px var(--accent-soft);
}

.subtitle {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--muted);
  max-width: 620px;
  line-height: 1.5;
  margin: 0 0 44px;
}

.cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 18px 44px;
  background: var(--accent);
  color: #0a0f1c;
  font-weight: 700;
  font-size: 17px;
  border-radius: 100px;
  text-decoration: none;
  box-shadow: 0 0 50px var(--accent-soft), 0 10px 30px rgba(138, 255, 180, 0.2);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
  border: none;
}
.cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 70px var(--accent-soft), 0 14px 40px rgba(138, 255, 180, 0.35);
}
.cta:active { transform: translateY(0); }
.cta svg { width: 18px; height: 18px; }

.features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 80px;
  width: 100%;
  max-width: 980px;
}

.feature {
  padding: 28px 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  text-align: left;
  transition: all 0.25s ease;
}
.feature:hover {
  border-color: var(--accent-soft);
  transform: translateY(-4px);
}
.feature .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}
.feature h3 {
  font-size: 18px;
  margin: 0 0 8px;
  font-weight: 600;
}
.feature p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.5;
  margin: 0;
}

footer {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 32px 0;
  color: var(--muted);
  font-size: 13px;
  border-top: 1px solid var(--border);
  margin-top: 40px;
}

@media (max-width: 720px) {
  .features { grid-template-columns: 1fr; }
  .hero { padding: 30px 0 60px; }
}