:root {
  --bg: #0b0f19;
  --bg-dark: #0f1629;
  --text: #f5f7fa;
  --muted: #9aa4b2;
  --accent: #4f8cff;
  --gradient: linear-gradient(90deg, #4f8cff, #7b5cff);
}

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

body {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
}

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

.narrow {
  max-width: 700px;
}

.center {
  text-align: center;
}

.nav {
  position: fixed;
  width: 100%;
  top: 0;
  backdrop-filter: blur(12px);
  background: rgba(11, 15, 25, 0.7);
  border-bottom: 1px solid rgba(255,255,255,0.05);
  z-index: 100;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

.nav a {
  color: var(--muted);
  text-decoration: none;
  margin-left: 30px;
  transition: 0.3s;
}

.nav a:hover {
  color: white;
}

.hero {
  padding: 180px 0 120px;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1.2;
}

@media(min-width:768px){
  .hero h1 {
    font-size: 4rem;
  }
}

.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero p {
  margin-top: 25px;
  color: var(--muted);
  font-size: 1.2rem;
}

.hero-buttons {
  margin-top: 40px;
}

.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: 12px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
}

.btn.large {
  padding: 18px 36px;
  font-size: 1.1rem;
}

.btn.primary {
  background: var(--gradient);
  color: white;
}

.btn.primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(79,140,255,0.3);
}

.section {
  padding: 120px 0;
}

.section.dark {
  background: var(--bg-dark);
}

.section-title {
  font-size: 2rem;
  margin-bottom: 60px;
  text-align: center;
}

.cards {
  display: grid;
  gap: 30px;
}

@media(min-width:768px){
  .cards {
    grid-template-columns: repeat(3,1fr);
  }
}

.card {
  background: rgba(255,255,255,0.03);
  padding: 40px;
  border-radius: 20px;
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255,255,255,0.05);
  transition: 0.3s;
}

.card:hover {
  transform: translateY(-8px);
  background: rgba(255,255,255,0.05);
}

.card h3 {
  margin-bottom: 15px;
}

.card p {
  color: var(--muted);
}

footer {
  padding: 40px;
  text-align: center;
  font-size: 14px;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,0.05);
}

/* Animations */

.fade-up {
  opacity: 0;
  transform: translateY(40px);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
  transition: 0.8s ease;
}

.delay-1 { transition-delay: 0.2s; }
.delay-2 { transition-delay: 0.4s; }

.reveal {
  opacity: 0;
  transform: translateY(60px);
  transition: 0.8s ease;
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* Cursor Glow */

.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(79,140,255,0.15), transparent 60%);
  pointer-events: none;
  transform: translate(-50%, -50%);
  z-index: 0;
}