:root{
  --glow-pink: color-mix(in srgb, var(--accent) 55%, transparent);
  --glow-aqua: color-mix(in srgb, var(--accent-2) 55%, transparent);
}

/* ---------- Aurora mesh backdrop ---------- */
body{
  background:
    radial-gradient(at 20% 30%, var(--glow-pink) 0, transparent 50%),
    radial-gradient(at 80% 20%, var(--glow-aqua) 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;
  background-size: 180% 180%, 180% 180%, 200% 200%, auto;
  animation: auroraDrift 28s ease-in-out infinite alternate;
}
@keyframes auroraDrift{
  0%{ background-position: 0% 0%, 100% 0%, 50% 100%, 0 0; }
  100%{ background-position: 30% 20%, 70% 30%, 40% 70%, 0 0; }
}

/* subtle grain over everything */
body::after{
  content:"";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: .06;
  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='0.85' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- Headings ---------- */
.hero-title,
.article h2,
.section > .center h2{
  letter-spacing: -0.01em;
  font-weight: 700;
}
.hero-title{
  background: linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 60%, var(--accent) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Site header / nav ---------- */
.site-header{
  background: color-mix(in srgb, var(--panel) 78%, transparent);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}

/* ---------- Hero ---------- */
.hero{
  position: relative;
  border-radius: calc(var(--radius) * 1.4);
  border: 1px solid var(--line);
  background:
    radial-gradient(at 15% 0%, var(--glow-pink) 0, transparent 55%),
    radial-gradient(at 90% 100%, var(--glow-aqua) 0, transparent 55%),
    var(--panel);
  box-shadow: 0 30px 80px -40px var(--glow-pink), inset 0 1px 0 color-mix(in srgb, #fff 8%, transparent);
}
.fact{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel-2) 70%, transparent);
}
.fact b{
  background: linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ---------- Cards / features ---------- */
.card,.feature,.faq-item{
  background:
    linear-gradient(180deg, color-mix(in srgb, #fff 4%, 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;
}
.card:hover,.feature:hover{
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 50%, var(--line));
  background-position: 100% 100%;
  box-shadow: 0 24px 60px -34px var(--glow-pink), 0 0 0 1px color-mix(in srgb, var(--accent-2) 30%, transparent);
}
.feature .icon{
  color: var(--on-accent);
  border-radius: calc(var(--radius) * 0.7);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 30px -12px var(--glow-aqua);
}

/* ---------- Catalog tiles ---------- */
.tile{
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.tile:hover{
  transform: translateY(-3px) scale(1.01);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: 0 22px 55px -30px var(--glow-aqua);
}
.tile.noimg{
  background:
    radial-gradient(at 30% 20%, var(--glow-pink) 0, transparent 60%),
    radial-gradient(at 80% 90%, var(--glow-aqua) 0, transparent 60%),
    var(--panel-2);
}
.tile .nm{ color: var(--text); font-weight: 600; }
.tile .gp{ color: var(--text-2); }

/* ---------- Buttons ---------- */
.btn-primary{
  color: var(--on-accent);
  border: none;
  background: linear-gradient(110deg, var(--accent), var(--accent-2));
  box-shadow: 0 14px 36px -16px var(--glow-pink);
  transition: transform .25s ease, box-shadow .25s ease, filter .25s ease;
}
.btn-primary:hover{
  transform: translateY(-2px);
  filter: brightness(1.06);
  box-shadow: 0 20px 46px -16px var(--glow-aqua);
}
.btn-ghost{
  border: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel-2) 60%, transparent);
  color: var(--text);
  transition: border-color .25s ease, background .25s ease;
}
.btn-ghost:hover{
  border-color: color-mix(in srgb, var(--accent-2) 60%, var(--line));
  background: color-mix(in srgb, var(--accent-2) 12%, var(--panel-2));
}

/* ---------- Badges / tabs ---------- */
.badge{
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 12%, var(--panel));
  color: var(--text);
}
.tab{
  border: 1px solid var(--line);
  border-radius: 999px;
  background: color-mix(in srgb, var(--panel-2) 60%, transparent);
  color: var(--text-2);
  transition: all .25s ease;
}
.tab.active,.tab:hover{
  color: var(--on-accent);
  border-color: transparent;
  background: linear-gradient(110deg, var(--accent), var(--accent-2));
}

/* ---------- Article / table / faq ---------- */
.article{ 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-2));
  color: var(--text);
}
.table td{ border-top: 1px solid var(--line); }
.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); }

/* ---------- Footer ---------- */
.site-footer{
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--panel) 80%, transparent);
}