@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700&family=Noto+Sans+SC:wght@400;500;700&display=swap');

:root{
  --bg-0:#05080f;
  --bg-1:#0b1224;
  --bg-2:#0c1b30;
  --glass:rgba(10,16,28,0.62);
  --card:rgba(255,255,255,0.045);
  --stroke:rgba(255,255,255,0.1);
  --text:#eaf1ff;
  --muted:rgba(235,241,255,0.68);
  --accent:#86e7ff;
  --accent-2:#ffe28a;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:"Manrope","Noto Sans SC","Segoe UI",sans-serif;
  background:radial-gradient(1100px 560px at 12% 8%,rgba(83,110,255,0.2),transparent 70%),
    radial-gradient(900px 560px at 86% 12%,rgba(50,220,255,0.18),transparent 60%),
    linear-gradient(180deg,var(--bg-1) 0%, var(--bg-0) 45%, #05070b 100%);
  background-repeat:no-repeat;
  background-size:100% 100vh;
  background-position:center top;
  background-attachment:fixed;
  color:var(--text);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
  position:relative;
}

body::before{
  content:"";
  position:fixed;
  inset:-10%;
  background:radial-gradient(circle at 20% 20%,rgba(255,255,255,0.03),transparent 35%),
    radial-gradient(circle at 80% 30%,rgba(255,255,255,0.03),transparent 30%),
    radial-gradient(circle at 60% 80%,rgba(255,255,255,0.025),transparent 40%);
  background-repeat:no-repeat;
  background-size:cover;
  background-position:center;
  pointer-events:none;
  z-index:-1;
}

body::after{
  content:"";
  position:fixed;
  inset:0;
  background:linear-gradient(180deg,rgba(0,0,0,0.35),transparent 40%,rgba(0,0,0,0.55));
  background-repeat:no-repeat;
  background-size:cover;
  background-position:center;
  pointer-events:none;
  z-index:-1;
}

#ambient-glow{display:none}

#starfield{
  position:fixed;
  inset:0;
  width:100%;
  height:100%;
  z-index:-3;
  display:block;
}

#glowfield{
  position:absolute;
  top:0;
  left:0;
  width:100%;
  height:100%;
  pointer-events:none;
  z-index:-2;
  display:block;
  opacity:0.7;
}

.site-header{
  position:sticky;
  top:0;
  z-index:10;
  backdrop-filter:blur(14px);
  background:linear-gradient(180deg,rgba(5,8,15,0.9),rgba(5,8,15,0.5));
  border-bottom:1px solid rgba(255,255,255,0.06);
}

.hero,
.page-hero,
.section,
.site-footer{
  position:relative;
  z-index:2;
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 28px;
}

.logo{
  font-weight:600;
  text-decoration:none;
  color:var(--text);
  letter-spacing:0.2em;
  text-transform:uppercase;
  font-size:0.82rem;
}

.nav-links{display:flex;align-items:center}

.nav-links a{
  color:var(--muted);
  text-decoration:none;
  margin-left:20px;
  font-weight:500;
  font-size:0.95rem;
  transition:color 0.2s ease;
}

.nav-links a:hover{color:var(--accent)}

.nav-link.is-active{
  color:var(--text);
}

.hero,
.page-hero{
  min-height:70vh;
  display:flex;
  align-items:center;
  justify-content:center;
  padding:80px 20px 40px;
}

.page-hero{min-height:50vh}

.hero-inner,
.page-hero-inner{
  text-align:center;
  max-width:960px;
}

.eyebrow{
  text-transform:uppercase;
  letter-spacing:0.35em;
  font-size:0.75rem;
  color:var(--muted);
  margin:0 0 14px;
}

.hero h1,
.page-hero h1{
  font-size:3.1rem;
  margin:0 0 16px;
  line-height:1.15;
}

.lead{
  color:var(--muted);
  margin:0 auto 26px;
  font-size:1.08rem;
  max-width:720px;
}

.hero-actions{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:30px;
}

.cta,
.ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 20px;
  border-radius:999px;
  text-decoration:none;
  font-weight:600;
}

.cta{
  background:linear-gradient(120deg,var(--accent),#63f0ff 55%,var(--accent-2));
  color:#0a111d;
}

.ghost{
  border:1px solid var(--stroke);
  color:var(--text);
  background:rgba(255,255,255,0.02);
}

.stats{
  display:flex;
  justify-content:center;
  gap:28px;
  flex-wrap:wrap;
}

.stat{
  display:flex;
  flex-direction:column;
  gap:6px;
  padding:12px 18px;
  background:var(--glass);
  border:1px solid var(--stroke);
  border-radius:14px;
  min-width:150px;
}

.stat-num{
  font-size:1.4rem;
  font-weight:700;
}

.stat-label{color:var(--muted);font-size:0.9rem}

.section{
  padding:90px 20px;
  position:relative;
}

.section-actions{
  margin-top:24px;
  display:flex;
  justify-content:flex-start;
}

.container{
  max-width:1100px;
  margin:0 auto;
}

.split{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:20px;
}

.panel{
  padding:24px;
  background:var(--glass);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:20px;
  box-shadow:0 18px 40px rgba(0,0,0,0.35);
}

.panel h2,.panel h3{margin-top:0}

.panel-highlight{
  background:linear-gradient(140deg,rgba(134,231,255,0.18),rgba(5,8,15,0.8));
}

.link{
  color:var(--accent);
  text-decoration:none;
  font-weight:600;
}

.focus-list{
  margin:0;
  padding-left:18px;
  color:var(--muted);
  line-height:1.8;
}

.section-head{
  max-width:680px;
  margin-bottom:28px;
}

.muted{color:var(--muted)}

.cards{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
  gap:20px;
}

.card{
  background:var(--card);
  border:1px solid var(--stroke);
  border-radius:18px;
  padding:22px;
  min-height:160px;
}

.card h3{margin:0 0 10px;font-size:1.1rem}

.tag{
  display:inline-flex;
  margin-top:12px;
  padding:4px 10px;
  border-radius:999px;
  background:rgba(134,231,255,0.12);
  color:var(--accent);
  font-size:0.75rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
}

.project-grid,
.timeline,
.topic-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
  gap:18px;
}

.project,
.timeline-card,
.topic-card{
  border:1px solid var(--stroke);
  background:linear-gradient(140deg,rgba(255,255,255,0.05),rgba(5,8,15,0.65));
  border-radius:20px;
  padding:24px;
}

.project .meta{
  display:flex;
  gap:12px;
  color:var(--muted);
  font-size:0.85rem;
  margin-top:12px;
}

.pill{
  display:inline-flex;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(255,255,255,0.08);
  color:var(--muted);
  font-size:0.72rem;
  letter-spacing:0.1em;
  text-transform:uppercase;
}

.cta-row{
  margin-top:28px;
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}

.site-footer{
  padding:26px 0 40px;
  text-align:center;
  color:var(--muted);
  font-size:0.9rem;
}

.scroll-item{
  opacity:0;
  transform:translateY(26px);
  transition:opacity 0.8s ease, transform 0.8s ease;
  transition-delay:var(--delay,0ms);
}

.scroll-item.is-visible{
  opacity:1;
  transform:translateY(0);
}

@media (max-width:720px){
  .nav{padding:14px 18px}
  .nav-links a{margin-left:12px}
  .hero h1,
  .page-hero h1{font-size:2.2rem}
  .hero{min-height:62vh}
  .page-hero{min-height:40vh}
  .stats{gap:16px}
  .stat{min-width:130px}
}

@media (prefers-reduced-motion:reduce){
  .scroll-item{opacity:1;transform:none;transition:none}
}