:root {
  --accent: #00FF9D;
  --cyan: #00BFFF;
  --dark: #0A0A0A;
  --glass-bg: rgba(10,10,10,0.7);
  --glass-border: rgba(255,255,255,0.12);
  --text-primary: #F0F0F0;
  --text-muted: #9CA3AF;
  --transition: 0.4s cubic-bezier(0.4,0,0.2,1);
}


* { margin:0; padding:0; box-sizing:border-box; }
html { font-family: 'Inter', sans-serif; }

body {
  background: var(--dark);
  color: var(--text-primary);
  overflow-x: hidden;
}


/* Glass utility */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
}

/* Accent glow */
.glow { box-shadow: 0 0 24px rgba(0,255,157,0.35), 0 0 60px rgba(0,255,157,0.12); }
.glow-cyan { box-shadow: 0 0 24px rgba(0,191,255,0.35), 0 0 60px rgba(0,191,255,0.12); }

/* Gradient text */
.gradient-text {
  background: linear-gradient(135deg, var(--accent) 0%, var(--cyan) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Scrollbar */
::-webkit-scrollbar { width:6px; }
::-webkit-scrollbar-track { background: #111; }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius:3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan); }

/* Particle canvas */
#particles-canvas {
  position:absolute; top:0; left:0;
  width:100%; height:100%;
  pointer-events:none; z-index:1;
}

/* Navbar */
#navbar {
  position:fixed; top:0; left:0; right:0; z-index:100;
  transition: background var(--transition), box-shadow var(--transition);
}
#navbar.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}

/* Hamburger */
.hamburger span {
  display:block; width:24px; height:2px;
  background: var(--text-primary);
  border-radius:2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity:0; }
.hamburger.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* Mobile menu */
#mobile-menu {
  position:fixed; inset:0; z-index:99;
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  display:flex; flex-direction:column;
  align-items:center; justify-content:center; gap:2.5rem;
  transform: translateX(-100%);
  transition: transform 0.5s cubic-bezier(0.4,0,0.2,1);
}
#mobile-menu.open { transform: translateX(0); }
#mobile-menu a {
  font-size:2rem; font-weight:700; color:var(--text-primary);
  text-decoration:none; letter-spacing:0.04em;
  transition: color var(--transition);
}
#mobile-menu a:hover { color: var(--accent); }

/* Btn styles */
.btn-primary {
  display:inline-flex; align-items:center; gap:0.5rem;
  padding:0.8rem 2rem; border-radius:50px; font-weight:600;
  background: linear-gradient(135deg, var(--accent), var(--cyan));
  color:#000;
  border:none; cursor:pointer;
  transition: transform var(--transition), box-shadow var(--transition), filter var(--transition);
}
.btn-primary:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 0 32px rgba(0,255,157,0.5);
  filter: brightness(1.1);
}
.btn-glass {
  display:inline-flex; align-items:center; gap:0.5rem;
  padding:0.8rem 2rem; border-radius:50px; font-weight:600;
  background: rgba(255,255,255,0.08);
  color: var(--text-primary);
  border:1px solid rgba(255,255,255,0.2);
  cursor:pointer; backdrop-filter:blur(8px);
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition);
}
.btn-glass:hover {
  transform: translateY(-3px) scale(1.03);
  background: rgba(255,255,255,0.15);
  box-shadow: 0 0 24px rgba(0,255,157,0.2);
}

/* Cards */
.service-card {
  background: rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:20px;
  padding:2rem;
  transition: transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition);
  cursor:pointer; position:relative; overflow:hidden;
}
.service-card::before {
  content:''; position:absolute; inset:0;
  background: linear-gradient(135deg, rgba(0,255,157,0.06), rgba(0,191,255,0.06));
  opacity:0; transition: opacity var(--transition);
}
.service-card:hover { transform: translateY(-8px) scale(1.02); border-color: rgba(0,255,157,0.3); box-shadow: 0 20px 60px rgba(0,255,157,0.12); }
.service-card:hover::before { opacity:1; }

/* Portfolio card */
.portfolio-card {
  border-radius: 24px; overflow: hidden; position: relative; cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), border var(--transition);
  border: 1px solid rgba(255,255,255,0.05);
  background: #000;
}
.portfolio-card:hover { 
  transform: translateY(-8px); 
  box-shadow: 0 30px 60px rgba(0,0,0,0.5), 0 0 40px rgba(0,255,157,0.15);
  border: 1px solid rgba(255,255,255,0.15);
}
.portfolio-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.4) 40%, transparent 100%);
  transition: background var(--transition);
}
.portfolio-card:hover .portfolio-overlay { 
  background: linear-gradient(to top, rgba(0,0,0,0.95) 0%, rgba(0,0,0,0.7) 60%, rgba(0,0,0,0.3) 100%);
}

/* Skills bar */
.skill-bar-fill {
  height:6px; border-radius:10px;
  background: linear-gradient(90deg, var(--accent), var(--cyan));
  width:0%; transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
  box-shadow: 0 0 12px rgba(0,255,157,0.4);
}

/* Process step */
.process-step-item { position:relative; }

/* Testimonial carousel */
.testimonials-track { display:flex; gap:1.5rem; transition: transform 0.6s cubic-bezier(0.4,0,0.2,1); }

/* Modal */
#portfolio-modal {
  position:fixed; inset:0; z-index:200;
  background: rgba(0,0,0,0.9);
  backdrop-filter: blur(20px);
  display:none; align-items:center; justify-content:center;
  padding:1rem;
}
#portfolio-modal.open { display:flex; }

/* Scroll indicator */
.scroll-indicator {
  width:28px; height:48px; border:2px solid rgba(255,255,255,0.3);
  border-radius:14px; position:relative;
}
.scroll-indicator::after {
  content:''; position:absolute; top:6px; left:50%; transform:translateX(-50%);
  width:4px; height:8px; background: var(--accent);
  border-radius:2px; animation: scrollDot 1.8s infinite;
}
@keyframes scrollDot {
  0%,100% { top:6px; opacity:1; }
  50% { top:22px; opacity:0.3; }
}

/* Kinetic typing cursor */
.typing-cursor {
  display:inline-block; width:3px; height:1.1em;
  background: var(--accent); vertical-align:middle;
  animation: blink 0.9s infinite;
  margin-left:4px; border-radius:2px; position:relative; top:-2px;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

/* Stars */
.stars span { color: #FBBF24; }

/* Form */
.form-input {
  width:100%; padding:0.85rem 1.2rem; border-radius:12px;
  background: rgba(255,255,255,0.06); border:1px solid rgba(255,255,255,0.12);
  color: var(--text-primary); font-family:inherit; font-size:0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline:none;
}
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(0,255,157,0.15); }
.form-input::placeholder { color: var(--text-muted); }
select.form-input option { background: #121212; color: #fff; }

/* Section heading underline */
.section-tag {
  display:inline-block; padding:0.3rem 1rem; border-radius:50px;
  background: rgba(0,255,157,0.1); border:1px solid rgba(0,255,157,0.25);
  color: var(--accent); font-size:0.8rem; font-weight:600; letter-spacing:0.1em;
  text-transform:uppercase; margin-bottom:1rem;
}

/* Animations — reduce-motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration:0.01ms!important; transition-duration:0.01ms!important; }
}

/* Toggle switch */
.toggle-track {
  width:48px; height:26px; border-radius:13px;
  background: rgba(255,255,255,0.12); position:relative;
  cursor:pointer; transition: background var(--transition); border:1px solid rgba(255,255,255,0.2);
}
.toggle-thumb {
  position:absolute; top:3px; left:3px;
  width:20px; height:20px; border-radius:50%;
  background: var(--accent); transition: transform var(--transition);
}


/* Nav link hover */
.nav-link {
  position:relative; font-weight:500;
  transition: color var(--transition);
}
.nav-link::after {
  content:''; position:absolute; bottom:-4px; left:0;
  width:0; height:2px; background:var(--accent);
  transition: width var(--transition); border-radius:1px;
}
.nav-link:hover { color: var(--accent); }
.nav-link:hover::after { width:100%; }

/* Hero grid bg */
.hero-grid {
  background-image:
    linear-gradient(rgba(0,255,157,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,255,157,0.04) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* Glow orbs */
.orb {
  position:absolute; border-radius:50%;
  filter: blur(120px); pointer-events:none; z-index:0;
}
.orb-1 { width:600px; height:600px; background:rgba(0,255,157,0.12); top:-200px; right:-200px; }
.orb-2 { width:500px; height:500px; background:rgba(0,191,255,0.10); bottom:-200px; left:-150px; }