:root{
  --bg:#0b1020;
  --paper:#ffffff;
  --ink:#171923;
  --muted:#667085;
  --accent:#7c3aed;
  --accent2:#06b6d4;
  --line:#e6e8ef;
  --soft:#f4f0ff;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:Inter, Arial, sans-serif;
  background:#f7f7fb;
  color:var(--ink);
  line-height:1.65;
}
a{text-decoration:none;color:inherit}
header{
  color:white;
  background:
    radial-gradient(circle at 12% 18%, rgba(124,58,237,.45), transparent 30%),
    radial-gradient(circle at 85% 5%, rgba(6,182,212,.35), transparent 28%),
    linear-gradient(135deg,#070914,#111827 55%,#172554);
}
nav{
  padding:22px 7%;
  display:flex;
  justify-content:space-between;
  align-items:center;
}
.logo{font-size:22px;font-weight:950;letter-spacing:-.03em}
.logo span{color:#67e8f9}
.navlinks a{margin-left:20px;font-weight:800;color:#edf2ff}
.hero{
  padding:78px 7% 96px;
  max-width:1180px;
}
.badge{
  display:inline-block;
  padding:8px 13px;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.18);
  font-weight:900;
}
.hero h1{
  font-size:clamp(42px,7vw,82px);
  max-width:950px;
  line-height:1;
  letter-spacing:-.07em;
  margin:22px 0;
}
.hero p{
  color:#d9def5;
  font-size:21px;
  max-width:780px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.btn{
  display:inline-block;
  padding:13px 18px;
  border-radius:14px;
  font-weight:950;
}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:white}
.btn.secondary{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18)}
main{max-width:1280px;margin:auto;padding:56px 7%}
.featured{
  display:grid;
  grid-template-columns:1.2fr .8fr;
  gap:24px;
  margin-top:-100px;
  position:relative;
}
.featured-card{
  min-height:420px;
  border-radius:32px;
  overflow:hidden;
  position:relative;
  background:#111827;
  color:white;
  box-shadow:0 24px 60px rgba(15,23,42,.22);
}
.featured-card img{
  width:100%;
  height:100%;
  object-fit:cover;
  position:absolute;
  inset:0;
  opacity:.55;
}
.featured-content{
  position:absolute;
  inset:auto 0 0 0;
  padding:34px;
  background:linear-gradient(transparent,rgba(0,0,0,.85));
}
.featured-content h2{font-size:clamp(30px,4vw,52px);line-height:1.05;margin:12px 0}
.about-card{
  background:white;
  border:1px solid var(--line);
  border-radius:32px;
  padding:34px;
  box-shadow:0 20px 45px rgba(15,23,42,.08);
}
.about-card h2{font-size:34px;letter-spacing:-.04em;margin:0 0 10px}
.about-card p{color:var(--muted)}
.section-head{margin-top:70px}
.section-head h2{
  font-size:clamp(32px,4vw,54px);
  letter-spacing:-.05em;
  line-height:1.05;
  margin:0 0 10px;
}
.section-head p{color:var(--muted);font-size:18px;max-width:760px}
.controls{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin:28px 0 8px;
  align-items:center;
}
.search{
  flex:1;
  min-width:240px;
  border:1px solid var(--line);
  background:white;
  border-radius:16px;
  padding:13px 16px;
  font-size:16px;
}
.filter{
  border:1px solid var(--line);
  background:white;
  border-radius:999px;
  padding:10px 14px;
  font-weight:900;
  cursor:pointer;
}
.filter.active{
  background:var(--accent);
  color:white;
  border-color:var(--accent);
}
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(290px,1fr));
  gap:24px;
  margin-top:28px;
}
.post-card{
  background:white;
  border:1px solid var(--line);
  border-radius:28px;
  overflow:hidden;
  box-shadow:0 18px 42px rgba(15,23,42,.06);
}
.post-card:hover{transform:translateY(-4px);transition:.2s}
.post-card img{
  width:100%;
  height:190px;
  object-fit:cover;
  display:block;
}
.post-body{padding:24px}
.tag{
  display:inline-block;
  background:var(--soft);
  color:var(--accent);
  border-radius:999px;
  padding:5px 10px;
  font-weight:950;
  font-size:12px;
}
.post-card h3{font-size:24px;line-height:1.2;margin:14px 0 10px}
.post-card p{color:var(--muted)}
.read{display:inline-block;margin-top:12px;color:var(--accent);font-weight:950}
.newsletter{
  margin-top:74px;
  border-radius:34px;
  text-align:center;
  padding:54px 30px;
  color:white;
  background:linear-gradient(135deg,#111827,#4c1d95,#0891b2);
}
.newsletter p{color:#e8edff;max-width:700px;margin:0 auto 24px}
footer{
  text-align:center;
  padding:34px 7%;
  color:var(--muted);
  border-top:1px solid var(--line);
}
.article-header{padding-bottom:110px}
.article{
  max-width:920px;
  margin:-90px auto 70px;
  background:white;
  border:1px solid var(--line);
  border-radius:34px;
  overflow:hidden;
  box-shadow:0 26px 70px rgba(15,23,42,.16);
}
.article img{width:100%;height:390px;object-fit:cover}
.article-content{padding:clamp(28px,6vw,64px)}
.article h1{font-size:clamp(36px,5vw,62px);line-height:1.05;letter-spacing:-.055em;margin:14px 0}
.meta{color:var(--muted);font-weight:850}
.article p{font-size:18px;color:#3f4658;margin:22px 0}
.back{color:var(--accent);font-weight:950}
.hidden{display:none!important}
@media(max-width:860px){
  nav{align-items:flex-start;flex-direction:column;gap:14px}
  .navlinks a{margin-left:0;margin-right:14px}
  .featured{grid-template-columns:1fr;margin-top:-70px}
}