:root{
  --glow-pink: color-mix(in srgb, var(--accent) 40%, transparent);
  --glow-aqua: color-mix(in srgb, var(--accent-2) 40%, transparent);
}

/* ===== Aurora Mesh background ===== */
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) 45%, var(--accent-2)) 0, transparent 50%),
    var(--bg);
  background-attachment: fixed;
  background-size: 200% 200%, 200% 200%, 200% 200%, auto;
  animation: meshDrift 24s ease-in-out infinite alternate;
}
@keyframes meshDrift{
  0%{background-position: 0% 0%, 100% 0%, 50% 100%, 0 0;}
  100%{background-position: 30% 20%, 70% 30%, 40% 70%, 0 0;}
}

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

/* ===== Headings ===== */
.hero-title,.section h2,.article h2{
  letter-spacing:-0.01em;
  font-weight:700;
}
.hero-title{
  background:linear-gradient(100deg, var(--accent) 0%, var(--accent-2) 55%, var(--accent) 100%);
  -webkit-background-clip:text; background-clip:text;
  -webkit-text-fill-color:transparent;
}

/* ===== Panels: cards / features / faq ===== */
.card,.feature,.faq-item,.article,.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,.faq-item{
  animation:panelDrift 18s ease-in-out infinite alternate;
}
@keyframes panelDrift{0%{background-position:0% 0%;}100%{background-position:100% 100%;}}

.card:hover,.feature:hover{
  transform:translateY(-5px);
  border-color:color-mix(in srgb, var(--accent) 50%, var(--line));
  box-shadow:0 14px 40px -16px var(--glow-pink), 0 0 0 1px var(--glow-aqua) inset;
}

/* feature icon */
.feature .icon{
  color:var(--on-accent);
  background:linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius:calc(var(--radius) * .7);
  box-shadow:0 8px 24px -10px var(--glow-pink);
}

/* ===== Buttons ===== */
.btn{
  border-radius:999px;
  transition:transform .25s ease, box-shadow .3s ease, filter .3s ease;
}
.btn-primary{
  background:linear-gradient(110deg, var(--accent), var(--accent-2));
  color:var(--on-accent);
  border:none;
  box-shadow:0 10px 30px -10px var(--glow-pink);
}
.btn-primary:hover{ transform:translateY(-2px); filter:brightness(1.06); box-shadow:0 16px 40px -12px var(--glow-aqua); }
.btn-ghost{
  border:1px solid var(--line);
  background:color-mix(in srgb, var(--panel) 70%, transparent);
}
.btn-ghost:hover{ border-color:var(--accent-2); color:var(--text); }

/* ===== Badges & facts ===== */
.badge{
  border:1px solid var(--line);
  background:color-mix(in srgb, var(--accent) 12%, var(--panel));
  border-radius:999px;
}
.fact{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.fact b{
  background:linear-gradient(120deg, var(--accent), var(--accent-2));
  -webkit-background-clip:text; background-clip:text; -webkit-text-fill-color:transparent;
}

/* ===== Tabs ===== */
.tab{
  border:1px solid var(--line);
  border-radius:999px;
  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;
}

/* ===== Catalog tiles ===== */
.tile{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:var(--panel-2);
  overflow:hidden;
  transition:transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.tile:hover{
  transform:translateY(-4px) scale(1.01);
  border-color:var(--accent);
  box-shadow:0 16px 44px -18px var(--glow-aqua);
}
.tile .nm{ color:var(--text); }
.tile .gp{ color:var(--accent-2); }
.tile.noimg{
  background:
    radial-gradient(at 30% 25%, var(--glow-pink) 0, transparent 60%),
    radial-gradient(at 75% 80%, var(--glow-aqua) 0, transparent 60%),
    var(--panel);
}

/* ===== Header glass ===== */
.site-header{
  background:color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}

/* ===== Hero accent glow ===== */
.hero{ position:relative; }
.hero::after{
  content:""; position:absolute; inset:0; z-index:-1; pointer-events:none;
  background:radial-gradient(60% 60% at 50% 0%, var(--glow-pink) 0, transparent 70%);
}

/* ===== FAQ ===== */
.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); }

/* links inside prose */
.article a{ color:var(--accent-2); text-decoration:underline; text-underline-offset:3px; }
.article a:hover{ color:var(--accent); }