@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;600;800&display=swap');

:root {
  --bg-deep: #020617;
  --bg-dark: #0f172a;
  --primary: #3b82f6;
  --secondary: #22d3ee;
  --accent: #818cf8;
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --glass: rgba(15, 23, 42, 0.7);
  --glass-border: rgba(255, 255, 255, 0.1);
  --glow: 0 0 20px rgba(59, 130, 246, 0.5);
}

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

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Background Stars */
#star-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: radial-gradient(circle at center, #0f172a 0%, #020617 100%);
  overflow: hidden;
}

.star {
  position: absolute;
  background: white;
  border-radius: 50%;
  opacity: 0.5;
  animation: move-star linear infinite;
}

@keyframes move-star {
  from { transform: translateY(0); }
  to { transform: translateY(-100vh); }
}

/* Layout */
header {
  position: fixed;
  top: 0;
  width: 100%;
  padding: 1.5rem 10%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  backdrop-filter: blur(10px);
  background: rgba(2, 6, 23, 0.8);
  border-bottom: 1px solid var(--glass-border);
  z-index: 1000;
}

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(to right, var(--primary), var(--secondary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

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

nav a {
  text-decoration: none;
  color: var(--text-secondary);
  font-weight: 500;
  transition: 0.3s;
}

nav a:hover, nav a.active {
  color: var(--secondary);
  text-shadow: 0 0 10px var(--secondary);
}

/* Hero Section */
.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  padding: 0 1rem;
}

.hero h1 {
  font-size: clamp(2.5rem, 8vw, 5rem);
  font-weight: 800;
  margin-bottom: 1rem;
  animation: fade-up 1s ease-out;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin-bottom: 2rem;
  animation: fade-up 1.2s ease-out;
}

.gradient-text {
  background: linear-gradient(to right, var(--primary), var(--secondary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Buttons */
.btn {
  padding: 0.8rem 2rem;
  border-radius: 50px;
  text-decoration: none;
  font-weight: 600;
  transition: 0.3s;
  border: none;
  cursor: pointer;
  display: inline-block;
}

.btn-primary {
  background: var(--primary);
  color: white;
  box-shadow: var(--glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  background: var(--secondary);
  box-shadow: 0 0 30px rgba(34, 211, 238, 0.6);
}

/* Glass Cards */
.glass-card {
  background: var(--glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 2rem;
  transition: 0.3s;
}

.glass-card:hover {
  border-color: var(--primary);
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
}

/* Sections */
section {
  padding: 100px 10%;
  min-height: 100vh;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
}

.section-title span {
  display: block;
  font-size: 1rem;
  text-transform: uppercase;
  color: var(--primary);
  letter-spacing: 4px;
}

/* Skills Grid */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 2rem;
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.skill-item svg {
  width: 60px;
  height: 60px;
  filter: drop-shadow(0 0 5px rgba(255, 255, 255, 0.2));
  transition: 0.3s;
}

.skill-item:hover svg {
  transform: scale(1.1) rotate(5deg);
  filter: drop-shadow(0 0 15px var(--secondary));
}

/* Animations */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: 1s all ease;
}

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

/* Responsive */
@media (max-width: 768px) {
  header { padding: 1rem 5%; }
  nav ul { display: none; } /* Mobile menu simplified for now */
  section { padding: 80px 5%; }
}