:root {
  --bg: #02030a;
  --panel: rgba(8, 14, 30, 0.58);
  --brd: rgba(80, 130, 200, 0.22);
  --brd-hot: rgba(56, 224, 255, 0.55);
  --ink: #cfe3ff;
  --muted: #7e9fd0;
  --faint: #56739f;
  --cyan: #38e0ff;
  --violet: #7b5cff;
  --good: #38ffa6;
  --amber: #ffcc4d;
  --radius: 16px;
  --maxw: 1140px;
  --head: 'Orbitron', system-ui, sans-serif;
  --body: 'Rajdhani', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--body);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

#galaxy { position: fixed; inset: 0; z-index: 0; display: block; }
.nebula {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(50vw 50vw at 12% -5%, rgba(56,224,255,0.11), transparent 60%),
    radial-gradient(46vw 46vw at 94% 8%, rgba(123,92,255,0.13), transparent 60%),
    radial-gradient(55vw 55vw at 50% 110%, rgba(56,255,166,0.06), transparent 60%);
  mix-blend-mode: screen;
}
.scan {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: .32;
  background: repeating-linear-gradient(0deg, rgba(56,224,255,0.035) 0 1px, transparent 1px 3px);
}
.vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  box-shadow: inset 0 0 220px 36px rgba(0,0,0,0.88);
}

.wrap { position: relative; z-index: 2; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(12px);
  background: linear-gradient(180deg, rgba(2,3,10,0.88), rgba(2,3,10,0.4));
  border-bottom: 1px solid var(--brd);
}
nav .row { display: flex; align-items: center; justify-content: space-between; height: 60px; gap: 16px; }
.brand {
  display: flex; align-items: center; gap: 11px;
  font-family: var(--head); font-weight: 900; letter-spacing: 2px; font-size: 16px;
  color: var(--ink); text-decoration: none;
}
.brand .core {
  width: 14px; height: 14px; border-radius: 50%;
  background: radial-gradient(circle at 32% 30%, #d6fbff, var(--cyan) 45%, var(--violet));
  box-shadow: 0 0 14px var(--cyan), 0 0 34px rgba(123,92,255,.6);
  animation: corepulse 3s ease-in-out infinite;
}
@keyframes corepulse { 0%,100%{ transform: scale(1); } 50%{ transform: scale(1.16); } }
.nav-links { display: flex; gap: 20px; align-items: center; flex-wrap: wrap; justify-content: flex-end; }
.nav-links a {
  color: var(--muted); text-decoration: none; font-weight: 600; font-size: 14px;
  letter-spacing: .4px; text-transform: uppercase; transition: color .2s, text-shadow .2s;
}
.nav-links a:hover { color: var(--cyan); text-shadow: 0 0 12px rgba(56,224,255,.55); }
.nav-cta {
  color: var(--ink) !important; border: 1px solid var(--brd-hot);
  padding: 7px 14px; border-radius: 999px;
  box-shadow: 0 0 18px rgba(56,224,255,.16) inset;
}
@media (max-width: 720px) { .nav-links a:not(.nav-cta) { display: none; } }

header.hero { padding: 88px 0 64px; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 9px;
  font-family: var(--head); font-size: 11px; letter-spacing: 2.5px; text-transform: uppercase;
  color: var(--cyan); border: 1px solid var(--brd); background: var(--panel);
  backdrop-filter: blur(6px); padding: 7px 16px; border-radius: 999px; margin-bottom: 26px;
}
.eyebrow .pip {
  width: 7px; height: 7px; border-radius: 50%; background: var(--good);
  box-shadow: 0 0 0 0 rgba(56,255,166,.55); animation: ping 2.2s infinite;
}
@keyframes ping {
  0% { box-shadow: 0 0 0 0 rgba(56,255,166,.55); }
  70% { box-shadow: 0 0 0 10px rgba(56,255,166,0); }
  100% { box-shadow: 0 0 0 0 rgba(56,255,166,0); }
}
h1 {
  font-family: var(--head); font-weight: 900;
  font-size: clamp(30px, 5.8vw, 58px); line-height: 1.06; letter-spacing: -0.5px;
  margin: 0 0 22px; text-shadow: 0 0 36px rgba(56,224,255,.22);
}
h1 .grad {
  background: linear-gradient(100deg, var(--cyan), #aef3ff 42%, var(--violet) 92%);
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.lede { max-width: 740px; margin: 0 auto 12px; font-size: clamp(17px, 2.3vw, 21px); }
.sub { max-width: 640px; margin: 0 auto 32px; color: var(--muted); font-size: 16px; }

.cta-row { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 24px; border-radius: 12px;
  font-family: var(--head); font-weight: 700; font-size: 13px;
  letter-spacing: 1px; text-transform: uppercase; text-decoration: none;
  transition: transform .15s, box-shadow .25s, border-color .2s, background .2s;
  border: 1px solid transparent;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  color: #021018;
  background: linear-gradient(100deg, var(--cyan), var(--violet));
  box-shadow: 0 0 28px rgba(56,224,255,.38), 0 8px 28px rgba(123,92,255,.28);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(56,224,255,.58), 0 10px 36px rgba(123,92,255,.4);
}
.btn-ghost {
  color: var(--ink); background: var(--panel); border-color: var(--brd-hot);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  transform: translateY(-2px); background: rgba(56,224,255,.08);
  box-shadow: 0 0 22px rgba(56,224,255,.22);
}

.hero-meta {
  margin-top: 30px; display: flex; gap: 22px; justify-content: center; flex-wrap: wrap;
  font-family: var(--head); font-size: 11px; letter-spacing: 1.4px;
  text-transform: uppercase; color: var(--faint);
}
.hero-meta b { color: var(--cyan); font-weight: 700; }

section { padding: 58px 0; position: relative; z-index: 2; }
.sec-head { text-align: center; max-width: 720px; margin: 0 auto 40px; }
.kicker {
  font-family: var(--head); font-size: 11px; letter-spacing: 3px;
  text-transform: uppercase; color: var(--violet);
}
.sec-head h2 {
  font-family: var(--head); font-weight: 700;
  font-size: clamp(22px, 3.6vw, 36px); margin: 10px 0; letter-spacing: 0;
}
.sec-head p { color: var(--muted); margin: 0; font-size: 17px; }

.pillars {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 14px;
}
.pillar {
  background: var(--panel); backdrop-filter: blur(8px);
  border: 1px solid var(--brd); border-radius: var(--radius); padding: 22px 20px;
}
.pillar .ic { font-size: 28px; margin-bottom: 8px; filter: drop-shadow(0 0 10px rgba(56,224,255,.45)); }
.pillar h3 {
  font-family: var(--head); margin: 0 0 8px; font-size: 15px; letter-spacing: .4px;
}
.pillar p { margin: 0; font-size: 15px; color: var(--muted); }

.flow {
  display: grid; grid-template-columns: 1fr auto 1fr auto 1fr; gap: 12px; align-items: stretch;
}
.flow-node {
  background: var(--panel); backdrop-filter: blur(8px);
  border: 1px solid var(--brd); border-radius: var(--radius);
  padding: 22px 18px; text-align: center;
}
.flow-node .ic { font-size: 28px; }
.flow-node h3 { font-family: var(--head); margin: 10px 0 6px; font-size: 15px; }
.flow-node p { margin: 0; font-size: 14px; color: var(--muted); }
.flow-arrow { align-self: center; color: var(--cyan); font-size: 22px; text-shadow: 0 0 12px var(--cyan); }
@media (max-width: 820px) {
  .flow { grid-template-columns: 1fr; }
  .flow-arrow { transform: rotate(90deg); text-align: center; }
}

.track { margin-bottom: 36px; }
.track-head {
  display: flex; align-items: baseline; gap: 12px; margin-bottom: 14px;
  padding-bottom: 10px; border-bottom: 1px solid var(--brd);
}
.track-head h3 {
  font-family: var(--head); margin: 0; font-size: 17px; letter-spacing: .5px;
}
.track-head span { color: var(--faint); font-size: 14px; text-transform: uppercase; letter-spacing: 1px; }

.grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 14px; }
.course-card {
  position: relative; background: var(--panel); backdrop-filter: blur(8px);
  border: 1px solid var(--brd); border-radius: var(--radius); padding: 22px;
  display: flex; flex-direction: column; gap: 10px;
  transition: transform .18s, border-color .18s, box-shadow .22s;
}
.course-card:hover {
  transform: translateY(-3px); border-color: var(--brd-hot);
  box-shadow: 0 0 28px rgba(56,224,255,.12);
}
.course-card .top { display: flex; align-items: flex-start; gap: 12px; }
.course-card .ic { font-size: 26px; line-height: 1; flex-shrink: 0; }
.course-card h4 {
  font-family: var(--head); margin: 0; font-size: 15px; line-height: 1.35; letter-spacing: .3px;
}
.course-card h4 a { color: var(--ink); text-decoration: none; }
.course-card h4 a:hover { color: var(--cyan); }
.tagline { margin: 0; font-size: 15px; color: var(--muted); flex: 1; }
.meta {
  display: flex; flex-wrap: wrap; gap: 8px;
  font-family: var(--head); font-size: 10px; letter-spacing: 1px; text-transform: uppercase;
}
.chip {
  border: 1px solid var(--brd); border-radius: 999px; padding: 4px 10px; color: var(--faint);
}
.chip.hot { color: var(--good); border-color: rgba(56,255,166,.35); }
.links { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 4px; }
.links a {
  color: var(--cyan); text-decoration: none; font-weight: 600; font-size: 14px;
}
.links a:hover { text-shadow: 0 0 10px rgba(56,224,255,.5); }

.filters { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-bottom: 28px; }
.filter-btn {
  font-family: var(--head); font-size: 11px; letter-spacing: 1px; text-transform: uppercase;
  padding: 8px 16px; border-radius: 999px; cursor: pointer;
  border: 1px solid var(--brd); background: transparent; color: var(--muted);
  transition: border-color .2s, color .2s, background .2s;
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--brd-hot); color: var(--cyan); background: rgba(56,224,255,.08);
}

.final {
  text-align: center; background: var(--panel); border: 1px solid var(--brd);
  border-radius: calc(var(--radius) + 4px); padding: 42px 28px;
  backdrop-filter: blur(10px);
}
.final h2 { font-family: var(--head); margin: 0 0 12px; font-size: clamp(22px, 3vw, 32px); }
.final p { color: var(--muted); max-width: 560px; margin: 0 auto 24px; }

footer {
  position: relative; z-index: 2; padding: 36px 0 48px;
  border-top: 1px solid var(--brd); text-align: center;
  font-family: var(--head); font-size: 11px; letter-spacing: 1.2px;
  text-transform: uppercase; color: var(--faint);
}
.foot-links { display: flex; flex-wrap: wrap; gap: 18px; justify-content: center; margin-bottom: 14px; }
.foot-links a { color: var(--muted); text-decoration: none; }
.foot-links a:hover { color: var(--cyan); }
footer .plain { font-family: var(--body); text-transform: none; letter-spacing: 0; font-size: 15px; }