:root{
  --halo: radial-gradient(at 20% 30%, color-mix(in srgb, var(--accent) 70%, transparent) 0, transparent 50%),
          radial-gradient(at 80% 20%, color-mix(in srgb, var(--accent-2) 70%, transparent) 0, transparent 50%),
          radial-gradient(at 50% 80%, color-mix(in srgb, var(--accent) 45%, var(--accent-2)) 0, transparent 50%);
}

body{
  background:
    var(--halo),
    var(--bg);
  background-attachment: fixed;
  background-size: 160% 160%, 160% 160%, 160% 160%, auto;
  background-position: 0% 0%, 100% 0%, 50% 100%, center;
  animation: auroraDrift 32s ease-in-out infinite alternate;
}

@keyframes auroraDrift{
  0%   { background-position: 0% 0%, 100% 0%, 50% 100%, center; }
  50%  { background-position: 10% 12%, 88% 14%, 44% 86%, center; }
  100% { background-position: 4% 6%, 96% 4%, 56% 94%, center; }
}

/* subtle grain over everything */
body::after{
  content:"";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .05;
  mix-blend-mode: overlay;
  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");
}

.section, .hero{
  position: relative;
  background: transparent;
}

.hero{
  background:
    radial-gradient(at 30% 20%, color-mix(in srgb, var(--accent) 35%, transparent) 0, transparent 55%),
    radial-gradient(at 75% 75%, color-mix(in srgb, var(--accent-2) 32%, transparent) 0, transparent 55%);
  border-radius: calc(var(--radius) * 1.4);
  border: 1px solid var(--line);
}

.hero-title{
  font-weight: 800;
  letter-spacing: -0.01em;
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 60%, var(--text) 120%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section h2, .article h2{
  font-weight: 700;
  letter-spacing: 0.005em;
}

/* Panels with hairline edge + slow drifting mesh sheen */
.card, .feature, .faq-item, .article, .table{
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--accent) 6%, transparent), transparent 40%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background-size: 200% 200%;
  background-position: 0% 0%;
  transition: transform .35s ease, box-shadow .35s ease, border-color .35s ease, background-position 6s ease;
  box-shadow: 0 1px 0 color-mix(in srgb, var(--text) 8%, transparent) inset,
              0 18px 40px -30px rgba(0,0,0,.8);
}

.card:hover, .feature:hover{
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  background-position: 100% 100%;
  box-shadow: 0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent),
              0 28px 60px -32px color-mix(in srgb, var(--accent) 55%, black);
}

.feature .icon{
  color: var(--on-accent);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: calc(var(--radius) * .7);
  border: 1px solid color-mix(in srgb, var(--accent-2) 50%, var(--line));
  box-shadow: 0 10px 24px -12px color-mix(in srgb, var(--accent) 70%, transparent);
}

.badge{
  background: color-mix(in srgb, var(--accent) 14%, var(--panel-2));
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  color: var(--text);
  border-radius: 999px;
}

.btn-primary{
  color: var(--on-accent);
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  border: 1px solid transparent;
  border-radius: 999px;
  background-size: 180% 180%;
  background-position: 0% 50%;
  transition: background-position .5s ease, transform .2s ease, box-shadow .3s ease;
  box-shadow: 0 14px 34px -16px color-mix(in srgb, var(--accent) 75%, transparent);
}
.btn-primary:hover{
  background-position: 100% 50%;
  transform: translateY(-2px);
  box-shadow: 0 20px 44px -18px color-mix(in srgb, var(--accent-2) 75%, transparent);
}

.btn-ghost{
  border: 1px solid color-mix(in srgb, var(--accent-2) 45%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent-2) 8%, transparent);
  transition: border-color .3s ease, background .3s ease, transform .2s ease;
}
.btn-ghost:hover{
  border-color: var(--accent-2);
  background: color-mix(in srgb, var(--accent-2) 16%, transparent);
  transform: translateY(-2px);
}

.fact{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}
.fact b{
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* Catalog tiles */
.tab{
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  transition: border-color .3s ease, color .3s ease, background .3s ease;
}
.tab.active{
  color: var(--on-accent);
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

.tile{
  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) 55%, var(--line));
  box-shadow: 0 26px 56px -30px color-mix(in srgb, var(--accent) 60%, black);
}
.tile.noimg{
  background:
    radial-gradient(at 30% 25%, color-mix(in srgb, var(--accent) 30%, transparent) 0, transparent 60%),
    radial-gradient(at 75% 80%, color-mix(in srgb, var(--accent-2) 28%, transparent) 0, transparent 60%),
    var(--panel);
}
.tile .nm{ color: var(--text); font-weight: 600; }
.tile .gp{
  color: var(--on-accent);
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  border-radius: 999px;
}

.faq-item{ transition: border-color .3s ease, box-shadow .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; }

.site-header{
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  backdrop-filter: blur(12px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

a{ transition: color .25s ease; }
.article a{ color: var(--accent-2); }
.article a:hover{ color: var(--accent); }

.table th{
  background: color-mix(in srgb, var(--accent) 12%, var(--panel-2));
  color: var(--text);
  border-bottom: 1px solid var(--line);
}
.table td{ border-bottom: 1px solid var(--line); }