body {
  background-color: var(--bg);
  background-image:
    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%);
  background-attachment: fixed;
  background-size: 180% 180%;
  animation: auroraDrift 28s ease-in-out infinite alternate;
}

@keyframes auroraDrift {
  0%   { background-position: 0% 0%, 100% 0%, 50% 100%; }
  100% { background-position: 30% 20%, 70% 30%, 40% 70%; }
}

.section::before,
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: .035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
.hero { position: relative; overflow: hidden; }

.hero-title {
  font-weight: 800;
  letter-spacing: -0.01em;
  background: linear-gradient(110deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub { color: var(--text-2); }

h2, h3 { font-weight: 700; letter-spacing: -0.005em; }

.card,
.feature {
  background-color: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-size: 200% 200%;
  background-position: 0% 0%;
  transition: transform .35s ease, border-color .35s ease, box-shadow .35s ease, background-position 8s ease;
  box-shadow: 0 1px 0 color-mix(in srgb, var(--accent-2) 12%, transparent) inset;
}
.card:hover,
.feature:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  background-image: linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, var(--panel)), color-mix(in srgb, var(--accent-2) 10%, var(--panel)));
  background-position: 100% 100%;
  box-shadow: 0 18px 40px -18px color-mix(in srgb, var(--accent) 45%, transparent);
}

.feature .icon {
  color: var(--on-accent);
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 8px 22px -10px color-mix(in srgb, var(--accent) 60%, transparent);
}

.badge {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-2) 14%, var(--panel));
  color: var(--text);
}

.btn {
  border-radius: 999px;
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
}
.btn-primary {
  border: none;
  color: var(--on-accent);
  background: linear-gradient(110deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 30px -12px color-mix(in srgb, var(--accent) 65%, transparent);
}
.btn-primary:hover { transform: translateY(-2px); filter: brightness(1.06); }
.btn-ghost {
  border: 1px solid color-mix(in srgb, var(--accent-2) 50%, var(--line));
  color: var(--text);
  background: transparent;
}
.btn-ghost:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent-2) 12%, transparent);
}

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

.tab {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  transition: all .25s ease;
}
.tab:hover { border-color: color-mix(in srgb, var(--accent) 50%, var(--line)); }
.tab.active {
  color: var(--on-accent);
  border-color: transparent;
  background: linear-gradient(110deg, var(--accent), var(--accent-2));
}

.tile {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-2);
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.tile:hover {
  transform: translateY(-4px) scale(1.01);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: 0 20px 44px -20px color-mix(in srgb, var(--accent) 50%, transparent);
}
.tile.noimg {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 22%, var(--panel)), color-mix(in srgb, var(--accent-2) 22%, var(--panel)));
}
.tile .gp { color: var(--text-2); }
.tile .nm { color: var(--text); font-weight: 600; }

.site-header {
  background: color-mix(in srgb, var(--panel) 82%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
}

.faq-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: border-color .3s ease;
}
.faq-item:hover { border-color: color-mix(in srgb, var(--accent-2) 45%, var(--line)); }
.faq-q { color: var(--text); font-weight: 600; }
.faq-a { color: var(--prose); }

.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);
}
.table td { border-top: 1px solid var(--line); color: var(--prose); }

.article p, .article li { color: var(--prose); }
.article a { color: var(--accent-2); }
.article a:hover { color: var(--accent); }

.section-title,
.hero-title { position: relative; }

.site-footer { border-top: 1px solid var(--line); }