:root {
  --on-accent: #0F0F1A;
}

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: 200% 200%;
  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%; }
}

/* subtle grain overlay */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.05;
  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");
}

.container, .hero, main { position: relative; z-index: 1; }

/* Headings — confident gradient ink */
.hero-title, .article h2 {
  font-weight: 800;
  letter-spacing: -0.01em;
}
.hero-title {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Glassy panels with drifting mesh edge */
.card, .feature, .faq-item, .tile, .hero, .table {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-size: 180% 180%;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease;
}

.card, .feature {
  box-shadow: 0 1px 0 color-mix(in srgb, var(--accent) 20%, transparent) inset,
              0 18px 40px -24px color-mix(in srgb, var(--accent) 50%, transparent);
  animation: panelDrift 22s ease-in-out infinite alternate;
}
@keyframes panelDrift {
  0% { background-position: 0% 50%; }
  100% { background-position: 100% 50%; }
}

.card:hover, .feature:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent-2) 55%, var(--line));
  box-shadow: 0 24px 60px -28px color-mix(in srgb, var(--accent-2) 60%, transparent);
}

/* Feature icons — aurora chip */
.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 10px 24px -12px color-mix(in srgb, var(--accent) 70%, transparent);
}

/* CTAs — pink / aqua */
.btn-primary {
  color: var(--on-accent);
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  border: none;
  box-shadow: 0 12px 30px -14px color-mix(in srgb, var(--accent) 75%, transparent);
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
}
.btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.08);
  box-shadow: 0 18px 44px -16px color-mix(in srgb, var(--accent-2) 75%, transparent);
}
.btn-ghost {
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 70%, transparent);
  transition: border-color .25s ease, background .25s ease;
}
.btn-ghost:hover {
  border-color: var(--accent-2);
  background: color-mix(in srgb, var(--accent-2) 12%, var(--panel));
}

/* Badges */
.badge {
  background: color-mix(in srgb, var(--accent) 16%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  color: var(--text);
  border-radius: 999px;
}

/* Facts */
.fact b { color: var(--accent-2); }

/* Tabs */
.tab { border: 1px solid var(--line); border-radius: 999px; transition: all .25s ease; }
.tab.active {
  color: var(--on-accent);
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

/* Tiles */
.tile { overflow: hidden; }
.tile:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: 0 20px 48px -26px color-mix(in srgb, var(--accent) 60%, transparent);
}
.tile.noimg {
  background:
    radial-gradient(at 30% 20%, color-mix(in srgb, var(--accent) 45%, transparent), transparent 60%),
    var(--panel);
}
.tile .gp { color: var(--accent-2); }
.tile .nm { color: var(--text); }

/* FAQ */
.faq-item { transition: border-color .3s ease, box-shadow .3s ease; }
.faq-item:hover { border-color: color-mix(in srgb, var(--accent-2) 50%, var(--line)); }
.faq-q { color: var(--text); font-weight: 600; }
.faq-a { color: var(--prose); }

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

/* Links in prose */
.article a { color: var(--accent-2); text-decoration-color: color-mix(in srgb, var(--accent-2) 50%, transparent); }
.article a:hover { color: var(--accent); }

/* Table accents */
.table th { color: var(--text); border-bottom: 1px solid var(--line); }
.table td { border-bottom: 1px solid color-mix(in srgb, var(--line) 70%, transparent); }