:root {
  --bg: #0a0a0a;
  --bg-light: #141414;
  --text: #f0f0f0;
  --text-muted: #999;
  --accent: #6c63ff;
  --accent-hover: #5a52e0;
  --card-bg: rgba(255, 255, 255, 0.05);
  --card-border: rgba(255, 255, 255, 0.08);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Navbar */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1rem 0;
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: background 0.3s ease;
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

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

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 600;
  transition: color 0.2s ease;
}

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

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem;
  background: radial-gradient(ellipse at 50% 50%, rgba(108, 99, 255, 0.08) 0%, transparent 70%);
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.tagline {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  color: var(--text-muted);
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  background: var(--accent);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  border-radius: 8px;
  transition: background 0.2s ease, transform 0.2s ease;
}

.btn:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
}

/* About */
.about {
  padding: 6rem 0;
  text-align: center;
}

.about h2 {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 1.5rem;
  letter-spacing: -0.02em;
}

.about p {
  max-width: 650px;
  margin: 0 auto;
  color: var(--text-muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

/* Services */
.services {
  padding: 4rem 0 6rem;
}

.services h2 {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 3rem;
  letter-spacing: -0.02em;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 12px;
  padding: 2rem;
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(108, 99, 255, 0.3);
}

.card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

/* Footer */
footer {
  padding: 4rem 0;
  text-align: center;
  border-top: 1px solid var(--card-border);
}

footer h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

footer p {
  color: var(--text-muted);
  font-size: 1rem;
}

footer a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

.copyright {
  margin-top: 2rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Fade-in animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 600px) {
  .nav-links {
    gap: 1.25rem;
  }

  .nav-links a {
    font-size: 0.8rem;
  }

  .logo {
    font-size: 1.1rem;
  }

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