:root{ color-scheme: dark; }

body{
  background:
    radial-gradient(900px 520px at 82% -8%, color-mix(in oklab, var(--accent) 14%, transparent), transparent 60%),
    radial-gradient(760px 480px at -6% 110%, color-mix(in oklab, var(--accent-2) 12%, transparent), transparent 62%),
    linear-gradient(180deg, var(--bg), var(--bg));
  background-attachment: fixed;
}

.section:nth-of-type(even){
  background:
    linear-gradient(180deg, color-mix(in oklab, var(--panel) 30%, transparent), transparent 70%);
}

.hero{
  background:
    radial-gradient(680px 360px at 16% 8%, color-mix(in oklab, var(--accent) 16%, transparent), transparent 64%),
    linear-gradient(165deg, color-mix(in oklab, var(--panel) 70%, var(--bg)), var(--bg));
  border-bottom: 1px solid var(--line);
  position: relative;
}
.hero::after{
  content:"";
  position:absolute; inset:0;
  background-image:
    linear-gradient(color-mix(in oklab, var(--line) 60%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--line) 60%, transparent) 1px, transparent 1px);
  background-size: 44px 44px;
  -webkit-mask-image: radial-gradient(520px 300px at 78% 20%, #000 0%, transparent 72%);
          mask-image: radial-gradient(520px 300px at 78% 20%, #000 0%, transparent 72%);
  opacity:.5; pointer-events:none;
}

.hero-title{
  font-weight: 700;
  letter-spacing: -0.018em;
  background: linear-gradient(180deg, var(--text), color-mix(in oklab, var(--accent-2) 55%, var(--text)));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub{ color: var(--prose); }

h2{ font-weight: 700; letter-spacing: -0.012em; }
h2::before{
  content:""; display:inline-block;
  width:.62em; height:.18em; margin-right:.5em; vertical-align:.18em;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.site-header{
  background: color-mix(in oklab, var(--bg) 78%, transparent);
  backdrop-filter: blur(10px) saturate(120%);
  border-bottom: 1px solid var(--line);
}

.badge{
  background: color-mix(in oklab, var(--accent) 12%, var(--panel));
  border: 1px solid color-mix(in oklab, var(--accent) 38%, var(--line));
  color: color-mix(in oklab, var(--accent-2) 70%, var(--text));
  border-radius: 999px;
}

.card, .feature, .faq-item{
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 40px -26px rgba(0,0,0,.6);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.card{ position: relative; overflow: hidden; }
.card::before{
  content:""; position:absolute; left:0; right:0; top:0; height:2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  opacity:0; transition: opacity .22s ease;
}
.card:hover, .feature:hover{
  transform: translateY(-3px);
  border-color: color-mix(in oklab, var(--accent) 40%, var(--line));
  box-shadow: 0 22px 54px -28px rgba(0,0,0,.7);
}
.card:hover::before{ opacity:1; }

.feature .icon{
  color: var(--accent);
  background: radial-gradient(120% 120% at 30% 20%, color-mix(in oklab, var(--accent) 22%, var(--panel)), var(--panel));
  border: 1px solid color-mix(in oklab, var(--accent) 34%, var(--line));
  border-radius: 14px;
  box-shadow: inset 0 0 0 1px color-mix(in oklab, var(--accent) 14%, transparent);
}

.tile{
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 40px -26px rgba(0,0,0,.6);
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease;
}
.tile:hover{
  transform: translateY(-3px);
  border-color: color-mix(in oklab, var(--accent) 46%, var(--line));
  box-shadow: 0 22px 54px -26px rgba(0,0,0,.7);
}
.tile .nm{ color: var(--text); font-weight: 600; }
.tile .gp{ color: var(--accent-2); }
.tile.noimg{
  background:
    radial-gradient(140% 120% at 80% 0%, color-mix(in oklab, var(--accent) 14%, transparent), transparent 60%),
    linear-gradient(180deg, var(--panel-2), var(--panel));
}

.btn{ border-radius: 12px; transition: transform .16s ease, box-shadow .2s ease, background .2s ease; }
.btn-primary{
  background: linear-gradient(180deg, color-mix(in oklab, var(--accent) 92%, white), var(--accent));
  color: var(--on-accent);
  border: 1px solid color-mix(in oklab, var(--accent) 60%, var(--line));
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--accent) 40%, transparent), 0 16px 34px -20px color-mix(in oklab, var(--accent) 70%, transparent);
}
.btn-primary:hover{ transform: translateY(-2px); box-shadow: 0 0 0 1px color-mix(in oklab, var(--accent) 55%, transparent), 0 22px 44px -20px color-mix(in oklab, var(--accent) 80%, transparent); }
.btn-ghost{
  background: color-mix(in oklab, var(--panel) 60%, transparent);
  border: 1px solid var(--line);
  color: var(--text);
}
.btn-ghost:hover{ border-color: color-mix(in oklab, var(--accent) 44%, var(--line)); color: var(--accent-2); }

.fact{
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 14px 40px -26px rgba(0,0,0,.6);
}
.fact b{ color: var(--accent); }

.tab{
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in oklab, var(--panel) 60%, transparent);
  transition: color .18s ease, border-color .18s ease, background .18s ease;
}
.tab:hover{ border-color: color-mix(in oklab, var(--accent) 40%, var(--line)); color: var(--accent-2); }
.tab.active{
  background: linear-gradient(180deg, color-mix(in oklab, var(--accent) 18%, var(--panel)), var(--panel));
  border-color: color-mix(in oklab, var(--accent) 50%, var(--line));
  color: var(--text);
  box-shadow: 0 0 0 1px color-mix(in oklab, var(--accent) 36%, transparent);
}

.article a{ color: var(--accent-2); text-underline-offset: 3px; }
.article a:hover{ color: var(--accent); }

.table{ border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.table th{
  background: color-mix(in oklab, var(--accent) 12%, var(--panel));
  color: var(--text);
  border-bottom: 1px solid color-mix(in oklab, var(--accent) 28%, var(--line));
}
.table td{ border-bottom: 1px solid var(--line); }
.table tr:nth-child(even) td{ background: color-mix(in oklab, var(--panel-2) 50%, transparent); }

.faq-item{ overflow: hidden; }
.faq-q{ color: var(--text); font-weight: 600; }
.faq-q::after{ color: var(--accent); }
.faq-item:hover{ border-color: color-mix(in oklab, var(--accent) 34%, var(--line)); }
.faq-a{ color: var(--prose); }

.site-footer{ border-top: 1px solid var(--line); background: linear-gradient(180deg, transparent, color-mix(in oklab, var(--panel) 30%, transparent)); }

a:focus-visible, .btn:focus-visible, .tab:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}