/* Import Font */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;600;700&display=swap');

/* --- GLOBAL & THEME --- */
:root {
  --teal-neon: #2dd4bf;
  --teal-dark: #0d9488;
  --bg-dark: #020617; /* Very dark slate */
}

body {
  font-family: 'Space Grotesk', sans-serif;
  background-color: var(--bg-dark);
  color: #e2e8f0;
  overflow-x: hidden;
  margin: 0;
}

/* --- BACKGROUND ANIMATION (Cyber Grid & Glowing Orbs) --- */
body::before {
  content: "";
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 50% 50%, rgba(13, 148, 136, 0.15), transparent 40%),
    radial-gradient(circle at 80% 20%, rgba(20, 184, 166, 0.1), transparent 30%);
  z-index: -2;
  animation: rotateGradient 30s linear infinite;
}

@keyframes rotateGradient {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* --- CANVAS PARTICLE (Rendered by JS) --- */
#tech-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none; /* Agar tidak mengganggu klik tombol */
  opacity: 0.6;
}

/* --- NEON & GLASSMORPHISM EFFECTS --- */
.glass-panel {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(45, 212, 191, 0.15);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-panel:hover {
  border-color: rgba(45, 212, 191, 0.6);
  box-shadow: 0 0 25px rgba(20, 184, 166, 0.3), inset 0 0 10px rgba(45, 212, 191, 0.1);
  transform: translateY(-5px);
}

/* Teks Neon Bercahaya */
.text-glow {
  color: var(--teal-neon);
  text-shadow: 0 0 10px rgba(45, 212, 191, 0.5), 0 0 20px rgba(45, 212, 191, 0.3);
}

/* Navigasi Aktif dengan Garis Neon Bergerak */
.nav-link {
  position: relative;
  text-decoration: none;
  padding-bottom: 5px;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: 0;
  left: 0;
  background-color: var(--teal-neon);
  box-shadow: 0 0 10px var(--teal-neon);
  transition: width 0.3s ease-in-out;
}

.nav-link:hover::after, .nav-link.active::after {
  width: 100%;
}

/* Efek Tombol Pulse (Denyut) */
.btn-neon {
  position: relative;
  overflow: hidden;
}

.btn-neon::before {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: linear-gradient(45deg, transparent, rgba(45, 212, 191, 0.3), transparent);
  transform: rotate(45deg);
  animation: lightSweep 3s infinite;
}

@keyframes lightSweep {
  0% { left: -150%; }
  100% { left: 150%; }
}