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

:root {
  --bg: #0f0c29;
  --bg-card: #1a1740;
  --accent-blue: #4facfe;
  --accent-yellow: #ffd200;
  --text: #ffffff;
  --text-muted: #9b9bc4;
  --radius: 16px;
  --max-width: 1100px;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* NAV */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 2rem;
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 12, 41, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(79, 172, 254, 0.1);
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent-blue);
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

/* HERO */
.hero {
  text-align: center;
  padding: 6rem 2rem 4rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: rgba(79, 172, 254, 0.12);
  border: 1px solid rgba(79, 172, 254, 0.3);
  color: var(--accent-blue);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.35rem 1rem;
  border-radius: 999px;
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.25rem;
  background: linear-gradient(135deg, #ffffff 0%, #4facfe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 560px;
  margin: 0 auto 2.5rem;
}

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

.btn-primary {
  background: linear-gradient(135deg, #4facfe, #00f2fe);
  color: #0f0c29;
  font-weight: 700;
  padding: 0.75rem 2rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.95rem;
  transition: transform 0.2s, box-shadow 0.2s;
  box-shadow: 0 4px 20px rgba(79, 172, 254, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(79, 172, 254, 0.5);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  font-weight: 600;
  padding: 0.75rem 2rem;
  border-radius: 999px;
  text-decoration: none;
  font-size: 0.95rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: border-color 0.2s, background 0.2s;
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.05);
}

/* HERO IMAGE */
.hero-image {
  max-width: 860px;
  margin: 3rem auto 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid rgba(79, 172, 254, 0.15);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.5);
}

.hero-image img {
  width: 100%;
  display: block;
}

/* FEATURES */
.features {
  padding: 6rem 2rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.section-label {
  text-align: center;
  color: var(--accent-blue);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.75rem;
}

.section-title {
  text-align: center;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.section-sub {
  text-align: center;
  color: var(--text-muted);
  max-width: 500px;
  margin: 0 auto 3.5rem;
  font-size: 1rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid rgba(79, 172, 254, 0.1);
  border-radius: var(--radius);
  padding: 2rem;
  transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
  border-color: rgba(79, 172, 254, 0.3);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 1rem;
}

.feature-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* STATS */
.stats {
  background: linear-gradient(135deg, rgba(79, 172, 254, 0.08), rgba(0, 242, 254, 0.04));
  border-top: 1px solid rgba(79, 172, 254, 0.1);
  border-bottom: 1px solid rgba(79, 172, 254, 0.1);
  padding: 4rem 2rem;
}

.stats-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  text-align: center;
}

.stat-value {
  font-size: 2.8rem;
  font-weight: 800;
  background: linear-gradient(135deg, #ffd200, #f7971e);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 0.4rem;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* CTA */
.cta {
  padding: 7rem 2rem;
  text-align: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

.cta h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 1rem;
}

.cta p {
  color: var(--text-muted);
  margin-bottom: 2.5rem;
  font-size: 1rem;
}

/* FOOTER */
footer {
  border-top: 1px solid rgba(255, 255, 255, 0.07);
  padding: 2rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

footer span {
  color: var(--accent-blue);
}

/* RESPONSIVE */
@media (max-width: 640px) {
  nav {
    padding: 1rem;
  }
  .nav-links {
    gap: 1rem;
  }
  .hero {
    padding: 4rem 1.25rem 3rem;
  }
}