:root{
  --grain: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
}

body{
  background:
    radial-gradient(at 20% 30%, color-mix(in srgb, var(--accent) 55%, transparent) 0, transparent 50%),
    radial-gradient(at 80% 20%, color-mix(in srgb, var(--accent-2) 55%, transparent) 0, transparent 50%),
    radial-gradient(at 50% 80%, color-mix(in srgb, var(--accent) 40%, var(--accent-2)) 0, transparent 50%),
    var(--bg);
  background-attachment: fixed;
}
body::before{
  content:"";
  position:fixed; inset:0;
  background-image: var(--grain);
  pointer-events:none; z-index:0;
}

.hero{
  background:
    radial-gradient(at 15% 25%, color-mix(in srgb, var(--accent) 45%, transparent) 0, transparent 55%),
    radial-gradient(at 85% 15%, color-mix(in srgb, var(--accent-2) 50%, transparent) 0, transparent 55%),
    radial-gradient(at 60% 90%, color-mix(in srgb, var(--accent) 35%, var(--accent-2)) 0, transparent 60%);
  background-size: 180% 180%;
  background-position: 0% 0%;
  animation: aurora-drift 26s ease-in-out infinite alternate;
  border-radius: calc(var(--radius) * 1.4);
  border:1px solid var(--line);
}
@keyframes aurora-drift{
  0%{ background-position: 0% 0%; }
  100%{ background-position: 100% 100%; }
}

.hero-title,
.article h2{
  letter-spacing:-0.01em;
  font-weight:700;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.badge{
  background: color-mix(in srgb, var(--accent) 16%, var(--panel));
  border:1px solid var(--line);
  color:var(--text);
  border-radius:999px;
}

.card,.feature,.faq-item{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  background-size:200% 200%;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.card::before,.feature::before{
  content:"";
  position:absolute; inset:0;
  border-radius:inherit;
  padding:1px;
  background:linear-gradient(135deg, color-mix(in srgb, var(--accent) 60%, transparent), transparent 40%, color-mix(in srgb, var(--accent-2) 60%, transparent));
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor; mask-composite:exclude;
  opacity:0; transition:opacity .35s ease;
  pointer-events:none;
}
.card:hover,.feature:hover{
  transform:translateY(-4px);
  border-color:transparent;
  box-shadow:0 18px 50px -20px color-mix(in srgb, var(--accent) 50%, transparent),
             0 0 0 1px color-mix(in srgb, var(--accent-2) 25%, transparent);
}
.card:hover::before,.feature:hover::before{ opacity:1; }

.feature .icon{
  color:var(--on-accent);
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius:calc(var(--radius) * 0.7);
  box-shadow:0 8px 24px -10px color-mix(in srgb, var(--accent) 70%, transparent);
}

.btn-primary{
  background:linear-gradient(110deg, var(--accent), var(--accent-2));
  color:var(--on-accent);
  border:none;
  border-radius:999px;
  box-shadow:0 10px 30px -12px color-mix(in srgb, var(--accent) 80%, transparent);
  transition:transform .25s ease, box-shadow .25s ease, filter .25s ease;
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:saturate(1.15) brightness(1.05);
  box-shadow:0 16px 40px -12px color-mix(in srgb, var(--accent-2) 80%, transparent);
}
.btn-ghost{
  background:color-mix(in srgb, var(--panel) 70%, transparent);
  border:1px solid var(--line);
  color:var(--text);
  border-radius:999px;
  transition:border-color .25s ease, color .25s ease, background .25s ease;
}
.btn-ghost:hover{
  border-color:color-mix(in srgb, var(--accent-2) 60%, var(--line));
  color:var(--accent-2);
}

.tab{
  border-radius:999px;
  border:1px solid var(--line);
  background:var(--panel);
  transition:all .25s ease;
}
.tab.active{
  background:linear-gradient(110deg, var(--accent), var(--accent-2));
  color:var(--on-accent);
  border-color:transparent;
}

.tile{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--panel-2);
  overflow:hidden;
  transition:transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}
.tile:hover{
  transform:translateY(-4px) scale(1.01);
  border-color:color-mix(in srgb, var(--accent) 45%, var(--line));
  box-shadow:0 20px 50px -22px color-mix(in srgb, var(--accent) 60%, transparent);
}
.tile.noimg{
  background:
    radial-gradient(at 30% 20%, color-mix(in srgb, var(--accent) 30%, transparent) 0, transparent 55%),
    radial-gradient(at 75% 85%, color-mix(in srgb, var(--accent-2) 30%, transparent) 0, transparent 55%),
    var(--panel);
}
.tile .gp{ color:var(--text-2); }
.tile .nm{ color:var(--text); font-weight:600; }

.faq-item{ overflow:hidden; }
.faq-item:hover{ border-color:color-mix(in srgb, var(--accent-2) 40%, var(--line)); }
.faq-q{ color:var(--text); font-weight:600; }

.site-header{
  background:color-mix(in srgb, var(--panel) 78%, transparent);
  backdrop-filter:blur(12px) saturate(1.2);
  border-bottom:1px solid var(--line);
}

.table{ border:1px solid var(--line); border-radius:var(--radius); overflow:hidden; }
.table th{ background:color-mix(in srgb, var(--accent) 14%, var(--panel)); color:var(--text); }

.fact{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:color-mix(in srgb, var(--panel) 85%, transparent);
}
.fact b{
  background:linear-gradient(110deg, var(--accent), var(--accent-2));
  -webkit-background-clip:text; background-clip:text; color:transparent;
}