:root{
  --bg: #0b0d12;
  --bg2:#101524;
  --panel:#121a2e;
  --text:#e8ecf5;
  --muted:#b7c0d8;
  --line: rgba(255,255,255,.12);
  --accent:#7aa2ff;

  --radius: 16px;
  --shadow: 0 10px 35px rgba(0,0,0,.35);
  --container: 1100px;
  --font: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji","Segoe UI Emoji";
}

:root[data-theme="light"]{
  --bg:#ffffff;
  --bg2:#f5f7fb;
  --panel:#ffffff;
  --text:#121826;
  --muted:#4b5569;
  --line: rgba(18,24,38,.12);
  --accent:#2f6bff;
  --shadow: 0 12px 30px rgba(18,24,38,.12);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  background: radial-gradient(1200px 700px at 20% 0%, rgba(122,162,255,.18), transparent 60%),
              radial-gradient(900px 600px at 90% 10%, rgba(122,255,214,.10), transparent 55%),
              linear-gradient(180deg, var(--bg), var(--bg2));
}

a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:underline; text-underline-offset: 3px; }
.container{
  width:min(var(--container), calc(100% - 40px));
  margin:0 auto;
}

.skip-link{
  position:absolute; left:-9999px; top:auto;
  width:1px; height:1px; overflow:hidden;
}
.skip-link:focus{
  left:20px; top:16px; width:auto; height:auto;
  padding:10px 12px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--shadow);
  z-index:999;
}

.site-header{
  position:sticky; top:0;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 70%, transparent);
  border-bottom:1px solid var(--line);
  z-index: 50;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 0;
}

.brand{ display:flex; align-items:center; gap:12px; }
.brand-mark{
  width:42px; height:42px;
  display:grid; place-items:center;
  border-radius:14px;
  background: color-mix(in srgb, var(--accent) 20%, var(--panel));
  border:1px solid var(--line);
  font-weight:700;
}
.brand-name{ font-weight:700; letter-spacing:.2px; }
.brand-role{ font-size:13px; color:var(--muted); margin-top:2px; }

.nav{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  justify-content:flex-end;
}
.nav a{ font-size:14px; color:var(--muted); padding:8px 10px; border-radius:12px; }
.nav a:hover{ color:var(--text); text-decoration:none; background: color-mix(in srgb, var(--panel) 70%, transparent); }
.nav a.active{ color:var(--text); background: color-mix(in srgb, var(--accent) 18%, var(--panel)); border:1px solid var(--line); }
.theme-toggle{
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--text);
  border-radius:12px;
  padding:8px 10px;
  cursor:pointer;
}
.theme-toggle:hover{ filter: brightness(1.05); }

.hero{ padding:44px 0 24px; }
.hero-inner{
  display:grid;
  grid-template-columns: 1.25fr .95fr;
  gap:22px;
  align-items:start;
}
.hero h1{
  font-size: clamp(28px, 3.4vw, 44px);
  line-height:1.08;
  margin:0 0 14px;
}
.lead{
  font-size:16px;
  color:var(--muted);
  line-height:1.6;
  margin:0 0 18px;
}

.hero-cta{ display:flex; gap:10px; flex-wrap:wrap; margin: 16px 0 10px; }

.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:11px 14px;
  border-radius:14px;
  border:1px solid var(--line);
  background: var(--panel);
  font-weight:600;
  font-size:14px;
}
.button:hover{ text-decoration:none; filter:brightness(1.06); }
.button.primary{
  background: color-mix(in srgb, var(--accent) 24%, var(--panel));
  border-color: color-mix(in srgb, var(--accent) 42%, var(--line));
}
.button.ghost{ background: transparent; }

.meta{
  list-style:none;
  padding:0; margin:16px 0 0;
  display:grid;
  gap:8px;
}
.meta .k{ display:inline-block; min-width:70px; color:var(--muted); }
.meta .v a{ color: color-mix(in srgb, var(--accent) 70%, var(--text)); text-decoration:none; }
.meta .v a:hover{ text-decoration:underline; }

.card, .panel{
  background: var(--panel);
  border:1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card .card{ padding:16px; }
.card-title{ margin:0 0 10px; font-size:16px; }
.card-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:10px;
}
.card-link{
  display:block;
  padding:12px;
  border-radius:14px;
  border:1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
}
.card-link:hover{ text-decoration:none; filter:brightness(1.06); }
.card-link-title{ font-weight:700; }
.card-link-desc{ color:var(--muted); font-size:13px; margin-top:3px; }

.section{ padding:34px 0; }
.section.alt{
  background: color-mix(in srgb, var(--bg2) 72%, transparent);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section-head{ margin-bottom:16px; }
.section-head h2{ margin:0 0 6px; font-size:22px; }
.section-head p{ margin:0; color:var(--muted); line-height:1.55; }

.two-col{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:16px;
}
.panel{ padding:16px; }
.panel h3{ margin:0 0 8px; }
.muted{ color:var(--muted); }

.list{ margin:10px 0 0; padding-left:18px; color:var(--muted); }
.list a{ color:var(--text); }
.list li{ margin:7px 0; }

.cards{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap:14px;
}
.cards .card{ padding:16px; transition: transform .12s ease; }
.cards .card:hover{ transform: translateY(-2px); text-decoration:none; }
.cards h3{ margin:0 0 8px; }
.cards p{ margin:0; color:var(--muted); line-height:1.55; }

.page{
  padding:26px 0 44px;
}
.page-title{
  margin:0 0 6px;
  font-size:30px;
}
.page-subtitle{
  margin:0 0 18px;
  color:var(--muted);
  line-height:1.6;
}

.kicker{
  display:inline-block;
  padding:6px 10px;
  border:1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 10px;
}

.table{
  width: 100%;
  border-collapse: collapse;
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.table th, .table td{
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.table th{
  text-align: left;
  color: var(--muted);
  font-weight: 600;
}
.table tr:last-child td{ border-bottom: none; }

.site-footer{
  padding:18px 0 30px;
  color:var(--muted);
}
.footer-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  border-top:1px solid var(--line);
  padding-top:16px;
}
.footer-links{ display:flex; gap:14px; }
.footer-links a{ color:var(--muted); }
.footer-links a:hover{ color:var(--text); text-decoration:none; }

@media (max-width: 900px){
  .hero-inner{ grid-template-columns: 1fr; }
  .card-grid{ grid-template-columns: 1fr; }
  .two-col{ grid-template-columns: 1fr; }
  .cards{ grid-template-columns: 1fr; }
  .nav{ justify-content:flex-start; }
}