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

:root {
  --bg: #0a0b0f;
  --bg2: #0f1117;
  --bg3: #13151d;
  --card: #151820;
  --border: #1e2233;
  --neon: #00f0ff;
  --neon2: #7b2fff;
  --neon3: #ff3d7f;
  --text: #e8eaf2;
  --muted: #6b7299;
  --green: #00ff88;
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: 'Rajdhani', sans-serif;
  font-size: 17px;
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,240,255,0.013) 2px,
    rgba(0,240,255,0.013) 4px
  );
  pointer-events: none;
  z-index: 9999;
}

.grid-bg {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,240,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,240,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── NAV ── */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 40px;
  height: 64px;
  background: rgba(10,11,15,0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-family: 'Orbitron', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--neon);
  text-shadow: 0 0 12px var(--neon);
  text-transform: uppercase;
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-links a:hover,
.nav-links a.active { color: var(--neon); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 4px;
  font-family: 'Orbitron', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s;
  border: none;
}

.btn-primary {
  background: var(--neon);
  color: #000;
  box-shadow: 0 0 20px rgba(0,240,255,0.4), 0 0 40px rgba(0,240,255,0.15);
}
.btn-primary:hover {
  box-shadow: 0 0 30px rgba(0,240,255,0.7), 0 0 60px rgba(0,240,255,0.3);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  border-color: var(--neon);
  color: var(--neon);
  transform: translateY(-2px);
}

.btn-group { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── SECTION COMMONS ── */
section {
  position: relative;
  z-index: 1;
  padding: 100px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.section-label {
  font-family: 'Orbitron', sans-serif;
  font-size: 10px;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--neon);
  margin-bottom: 12px;
}

.section-title {
  font-family: 'Orbitron', sans-serif;
  font-size: clamp(24px, 4vw, 40px);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-sub {
  color: var(--muted);
  font-size: 16px;
  max-width: 480px;
  margin-bottom: 56px;
}

.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
  position: relative;
  z-index: 1;
}

/* ── TAGS ── */
.feature-tag {
  display: inline-block;
  margin-top: 14px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.tag-cyan   { background: rgba(0,240,255,0.1);   color: var(--neon);  border: 1px solid rgba(0,240,255,0.25); }
.tag-purple { background: rgba(123,47,255,0.1);  color: #a86fff;      border: 1px solid rgba(123,47,255,0.3); }
.tag-pink   { background: rgba(255,61,127,0.1);  color: #ff6fa0;      border: 1px solid rgba(255,61,127,0.3); }
.tag-green  { background: rgba(0,255,136,0.1);   color: var(--green); border: 1px solid rgba(0,255,136,0.25); }

/* ── FOOTER ── */
footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 32px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo  { font-family: 'Orbitron', sans-serif; font-size: 12px; color: var(--neon); letter-spacing: 2px; }
.footer-copy  { font-size: 13px; color: var(--muted); }
.footer-links { display: flex; gap: 24px; }
.footer-links a { color: var(--muted); text-decoration: none; font-size: 13px; transition: color 0.2s; }
.footer-links a:hover { color: var(--neon); }

/* ── ANIMATIONS ── */
.fade-in { opacity: 0; transform: translateY(24px); animation: fadeIn 0.7s forwards; }
@keyframes fadeIn { to { opacity: 1; transform: translateY(0); } }
.fade-in-1 { animation-delay: 0.1s; }
.fade-in-2 { animation-delay: 0.25s; }
.fade-in-3 { animation-delay: 0.4s; }
.fade-in-4 { animation-delay: 0.55s; }
.fade-in-5 { animation-delay: 0.7s; }

/* ── MOBILE ── */
@media (max-width: 600px) {
  nav { padding: 0 20px; }
  .nav-links { gap: 16px; }
  footer { padding: 24px 20px; flex-direction: column; text-align: center; }
  .footer-links { justify-content: center; }
}