:root{
  --bg: #0b1020;
  --card: #111731;
  --muted: #92a4c8;
  --text: #e6eeff;
  --accent: #6aa6ff;
  --accent-2: #20e3b2;
  --ring: rgba(106,166,255,0.45);
  --shadow: 0 10px 30px rgba(0,0,0,0.35);
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font: 16px/1.6 system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background: radial-gradient(1200px 800px at 10% 10%, #09d3e7 0%, transparent 60%),
              radial-gradient(1000px 700px at 90% 0%, #0f1630 0%, transparent 60%),
              var(--bg);
  min-height: 100svh;
}

/* Page fade-in */
@keyframes fadeUp {
  from {opacity: 0; transform: translateY(12px);}
  to {opacity: 1; transform: translateY(0);}
}
.page{
  animation: fadeUp .45s ease both;
}

a{color: var(--accent); text-decoration: none; transition: color .25s ease, opacity .25s ease;}
a:hover{color: var(--accent-2)}

/* Header / Nav */
.site-header{
  position: sticky; top:0; z-index:50;
  backdrop-filter: blur(8px);
  background: rgba(12,16,34,0.6);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.navbar{
  max-width: 1100px; margin: 0 auto; padding: 14px 20px;
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
}
.brand{
  display:flex; align-items:center; gap:10px; font-weight:700; letter-spacing:.3px;
}
.brand-bubble{
  width:32px; height:32px; border-radius:10px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 16px var(--ring);
}
.nav-links{
  display:flex; gap: 18px; align-items:center; flex-wrap: wrap;
}
.nav-links a{
  position:relative; padding:8px 2px; color: var(--text); opacity:.9;
}
.nav-links a:hover{opacity:1}
.nav-links a::after{
  content:""; position:absolute; left:0; bottom:2px; height:2px; width:0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  transition: width .25s ease;
}
.nav-links a:hover::after{width:100%}
.nav-links a.current{ color: var(--accent-2); }
.nav-links a.current::after{width:100%}

/* Layout */
.container{max-width:1100px; margin:0 auto; padding: 24px 20px}
.grid{
  display:grid; gap:18px;
}
.grid-3{
  grid-template-columns: repeat(3, minmax(0, 1fr));
}
@media (max-width: 960px){
  .grid-3{grid-template-columns: 1fr 1fr;}
}
@media (max-width: 640px){
  .grid-3{grid-template-columns: 1fr;}
}

/* Card */
.card{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 18px;
  box-shadow: var(--shadow);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover{
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.12);
  box-shadow: 0 16px 40px rgba(0,0,0,0.45);
}
.card h3{margin:0 0 8px 0}
.card p{margin:0; color: var(--muted)}

/* Article/Page content */
.content{
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
  padding: 22px;
  box-shadow: var(--shadow);
}
.content h1, .content h2, .content h3{ margin-top: .8em }
.content img{ max-width:100%; border-radius: 10px; }
.meta{ color: var(--muted); font-size: .9rem; margin-bottom: 10px; }

/* Hero */
.hero{
  display:grid; gap:22px; align-items:center;
  grid-template-columns: 1.2fr .8fr;
}
@media (max-width: 960px){
  .hero{grid-template-columns: 1fr}
}
.kicker{color: var(--accent-2); font-weight:700; letter-spacing:.12em; text-transform:uppercase; font-size: 12px}
.hero h1{margin:.1em 0 .2em 0; font-size: clamp(28px, 4.2vw, 48px); line-height:1.15}
.hero p{color: var(--muted); margin: 0 0 8px 0}
.hero-blob{
  min-height: 240px; border-radius: 28px; 
  background:
    radial-gradient(120px 140px at 70% 30%, rgba(32,227,178,0.5), transparent 60%),
    radial-gradient(160px 200px at 30% 70%, rgba(106,166,255,0.45), transparent 60%),
    linear-gradient(180deg, #0f1834 0%, #0b1126 100%);
  border: 1px solid rgba(255,255,255,0.06);
  box-shadow: var(--shadow);
  position:relative; overflow:hidden;
}
/* flowing gradient accent */
.hero-blob::before{
  content:""; position:absolute; inset:-40%;
  background: conic-gradient(from 0deg, var(--accent), var(--accent-2), var(--accent), var(--accent-2));
  filter: blur(60px) saturate(120%) opacity(.18);
  animation: spin 12s linear infinite;
}
@keyframes spin{ to { transform: rotate(360deg);} }

/* Buttons */
.btn{
  display:inline-flex; align-items:center; gap:10px;
  padding: 10px 14px; border-radius: 12px;
  background: linear-gradient(135deg, rgba(106,166,255,0.18), rgba(32,227,178,0.18));
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--text);
  transition: transform .2s ease, background .25s ease, border-color .25s ease;
}
.btn:hover{
  transform: translateY(-2px);
  background: linear-gradient(135deg, rgba(106,166,255,0.28), rgba(32,227,178,0.28));
  border-color: rgba(255,255,255,0.22);
}

/* Footer */
.site-footer{
  border-top: 1px solid rgba(255,255,255,0.06);
  color: var(--muted);
  padding: 28px 20px; margin-top: 28px;
}

/* Accessibility: reduce motion */
@media (prefers-reduced-motion: reduce){
  .page{animation: none}
  .hero-blob::before{animation: none}
  *{scroll-behavior: auto !important}
}