/* ===== COLOR SYSTEM ===== */
:root {
  --bg-primary: #0B0D10;
  --bg-secondary: #16181D;
  --text-primary: #E8EAED;
  --text-secondary: #A1A5AC;
  --accent: #3BC7FF;
  --accent-soft: rgba(59, 199, 255, 0.15);
  --border: #2A2D33;
}

/* ===== GLOBAL ===== */
body {
  margin: 0;
  font-family: 'Inter', sans-serif;
  background: radial-gradient(circle at top left, #11131A 0, #05070B 50%, #05060A 100%);
  color: var(--text-primary);
  line-height: 1.6;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* ===== HEADER ===== */
.header {
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  height: 40px;
}

.nav a {
  margin-left: 24px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s ease;
}

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

/* ===== HERO ===== */
.hero {
  padding: 120px 0;
  text-align: center;
}

.hero h1 {
  font-size: 64px;
  font-weight: 700;
  margin-bottom: 20px;
  background: linear-gradient(90deg, #3BC7FF, #6A7CFF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  font-size: 20px;
  color: var(--text-secondary);
  max-width: 700px;
  margin: 0 auto 40px;
}

.cta-btn {
  background: var(--accent);
  color: #000;
  padding: 16px 32px;
  border-radius: 8px;
  font-size: 18px;
  font-weight: 600;
  text-decoration: none;
  transition: background 0.2s ease;
}

.cta-btn:hover {
  background: #5bd3ff;
}

/* ===== FEATURES ===== */
.features {
  padding: 100px 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
}

.feature-card {
  background: var(--bg-secondary);
  padding: 32px;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: 0.2s ease;
}

.feature-card:hover {
  border-color: var(--accent);
  box-shadow: 0 0 20px var(--accent-soft);
}

.feature-card h3 {
  font-size: 24px;
  margin-bottom: 12px;
  color: var(--accent);
}

.feature-card p {
  color: var(--text-secondary);
  font-size: 16px;
}

/* ===== FOOTER ===== */
.footer {
  padding: 60px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
}