/* Premium Dark Theme for Sevgi.ai */
:root{
  --bg: #0b0d12;
  --panel: #121520;
  --muted: #9aa4b2;
  --text: #e6eaf2;
  --brand: #8b5cf6;
  --brand-2: #22d3ee;
  --ring: #3b82f6;
  --ok: #10b981;
  --err: #ef4444;
  --shadow: 0 10px 30px rgba(0,0,0,.35);
  --radius: 16px;
}
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  color:var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, rgba(139,92,246,.15), transparent 60%),
              radial-gradient(900px 500px at 90% 10%, rgba(34,211,238,.12), transparent 60%),
              var(--bg);
  font: 16px/1.6 system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Arial, "Apple Color Emoji","Segoe UI Emoji";
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:var(--brand-2); text-decoration:none}
a:hover{text-decoration:underline}
.container{max-width:1200px; margin:0 auto; padding:24px}
.header{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
}
.brand{display:flex; align-items:center; gap:10px; color:var(--text); font-weight:700}
.header nav{display:flex; gap:18px; align-items:center}
.header nav a{opacity:.9}
.header nav a[aria-current="page"]{color:var(--text); opacity:1}
.btn{
  display:inline-flex; align-items:center; justify-content:center;
  background:linear-gradient(120deg, var(--brand), var(--brand-2));
  color:#0b0d12; font-weight:700; padding:10px 16px; border-radius:999px; box-shadow:var(--shadow);
  border:none; outline:none; cursor:pointer;
}
.btn.ghost{background:transparent; color:var(--text); border:1px solid rgba(255,255,255,.15)}
.btn:hover{filter:saturate(1.1)}
.skip{position:absolute; left:-9999px}
.skip:focus{left:16px; top:8px; background:#fff; color:#000; padding:6px 10px; border-radius:6px; z-index:999}

.hero{display:grid; grid-template-columns: 1.1fr .9fr; gap:32px; align-items:center; padding:40px 0}
.hero-copy h1{font-size: clamp(32px, 4vw, 56px); line-height:1.05; margin:0 0 12px}
.accent{background: linear-gradient(90deg, var(--brand), var(--brand-2)); -webkit-background-clip:text; background-clip:text; color:transparent}
.hero-copy p{color:var(--muted); margin:0 0 16px}
.cta-row{display:flex; gap:12px; flex-wrap:wrap}
.hero-art img{display:block; width:100%; height:auto; border-radius:var(--radius); box-shadow:var(--shadow); background:#0e1220}

.grid{display:grid; gap:16px; grid-template-columns: repeat(3, minmax(0,1fr)); margin: 12px 0 32px}
.card{
  background:linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius);
  padding:18px; box-shadow:var(--shadow);
}
.card h3{margin:0 0 6px}
.card p{color:var(--muted); margin:0 0 10px}
.more{display:inline-flex; align-items:center; gap:6px; font-weight:700}

.newsletter{
  margin: 28px 0 32px; padding:22px;
  background:linear-gradient(180deg, rgba(139,92,246,.12), rgba(34,211,238,.08));
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);
}
.form{display:flex; gap:10px; flex-wrap:wrap}
.form input{
  flex:1 1 280px; padding:12px 14px; border-radius:12px; border:1px solid rgba(255,255,255,.15);
  background:rgba(5,8,16,.6); color:var(--text); outline:none;
}
.form input:focus{box-shadow:0 0 0 3px rgba(59,130,246,.35); border-color: var(--ring)}
.footer{color:var(--muted); border-top:1px solid rgba(255,255,255,.08); margin-top:32px}
.prose h1, .prose h2{letter-spacing:.2px}
.prose p{color:var(--text)}
.prose ul{color:var(--muted)}

.sr-only{position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); border:0}
@media (max-width: 900px){
  .hero{grid-template-columns:1fr; gap:20px}
  .grid{grid-template-columns:1fr; gap:12px}
}

/* === Premium Upgrades === */
.glass{backdrop-filter:saturate(160%) blur(10px); background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03)); border:1px solid rgba(255,255,255,.10)}
.gradient-border{position:relative}
.gradient-border:before{content:""; position:absolute; inset:0; padding:1px; border-radius:var(--radius);
  background:linear-gradient(120deg, var(--brand), var(--brand-2)); -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude; pointer-events:none}
.card{transition:transform .35s ease, box-shadow .35s ease}
.card:hover{transform:translateY(-6px); box-shadow:0 18px 40px rgba(0,0,0,.45)}
.meta{display:flex; gap:8px; align-items:center; flex-wrap:wrap; margin-top:8px}
.chip{display:inline-flex; align-items:center; gap:6px; font-size:12px; padding:4px 8px; border-radius:999px; border:1px solid rgba(255,255,255,.14); background:rgba(10,14,24,.6)}
.icon{width:14px; height:14px; display:inline-block}
.reveal{opacity:0; transform:translateY(8px); transition:opacity .6s ease, transform .6s ease}
.reveal.show{opacity:1; transform:none}
@media (prefers-reduced-motion: reduce){
  .card, .reveal{transition:none}
}
.footer .social{display:flex; gap:10px; margin-top:10px}
.footer .social a{opacity:.8}
.footer .social a:hover{opacity:1}