:root {
  color-scheme: dark;
}

body {
  background:
    radial-gradient(circle at 50% -10%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 55%),
    radial-gradient(circle at 85% 8%, color-mix(in srgb, var(--accent-2) 16%, transparent), transparent 50%),
    var(--bg);
  background-attachment: fixed;
}

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

.section + .section {
  border-top: 1px solid color-mix(in srgb, var(--line) 60%, transparent);
}

/* ---------- Hero aurora ---------- */
.hero {
  position: relative;
  background:
    radial-gradient(70% 55% at 22% 0%, color-mix(in srgb, var(--accent) 38%, transparent), transparent 60%),
    radial-gradient(60% 50% at 88% 18%, color-mix(in srgb, var(--accent-2) 30%, transparent), transparent 62%),
    radial-gradient(90% 70% at 50% 120%, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
    var(--panel);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) * 1.4);
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  inset: -2px;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: inset 0 1px 0 color-mix(in srgb, var(--accent) 35%, transparent);
}

.hero-title {
  font-weight: 700;
  letter-spacing: -0.02em;
  background: linear-gradient(110deg, var(--text) 30%, var(--accent) 65%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub { color: var(--prose); }

h2, h3 {
  font-weight: 600;
  letter-spacing: -0.01em;
}
h2 { font-style: italic; }

.badge {
  background: color-mix(in srgb, var(--accent) 14%, var(--panel));
  border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line));
  color: var(--text);
  border-radius: 999px;
  box-shadow: 0 0 18px -6px color-mix(in srgb, var(--accent) 60%, transparent);
}

/* ---------- Cards & features ---------- */
.card, .feature, .faq-item {
  background: linear-gradient(180deg, color-mix(in srgb, var(--panel) 92%, var(--accent) 8%), var(--panel-2));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover, .feature:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--line));
  box-shadow: 0 18px 40px -22px color-mix(in srgb, var(--accent) 80%, transparent);
}

.feature .icon {
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  border-radius: calc(var(--radius) * 0.7);
  box-shadow: 0 0 22px -8px color-mix(in srgb, var(--accent) 70%, transparent);
}

/* ---------- Buttons ---------- */
.btn {
  border-radius: 999px;
  transition: transform .2s ease, box-shadow .25s ease, filter .25s ease;
}
.btn-primary {
  background: linear-gradient(120deg, var(--accent), color-mix(in srgb, var(--accent) 55%, var(--accent-2)));
  color: var(--on-accent);
  border: 1px solid color-mix(in srgb, var(--accent) 70%, var(--line));
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 30px -4px color-mix(in srgb, var(--accent) 85%, transparent);
}
.btn-ghost {
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line));
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--accent);
  box-shadow: 0 0 22px -8px color-mix(in srgb, var(--accent-2) 75%, transparent);
}

/* ---------- Tabs & tiles ---------- */
.tab {
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--panel);
  transition: all .2s ease;
}
.tab.active {
  background: color-mix(in srgb, var(--accent) 20%, var(--panel));
  border-color: var(--accent);
  color: var(--text);
}

.tile {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--panel-2);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.tile:hover {
  transform: translateY(-3px) scale(1.01);
  border-color: var(--accent);
  box-shadow: 0 16px 36px -20px color-mix(in srgb, var(--accent) 85%, transparent);
}
.tile.noimg {
  background:
    radial-gradient(120% 100% at 0% 0%, color-mix(in srgb, var(--accent) 22%, transparent), transparent 60%),
    var(--panel-2);
}
.tile .gp { color: var(--accent-2); letter-spacing: .04em; text-transform: uppercase; }
.tile .nm { color: var(--text); font-weight: 600; }

/* ---------- FAQ & table ---------- */
.faq-q { color: var(--text); font-weight: 600; }
.faq-a { color: var(--prose); }
.faq-item:hover { border-color: color-mix(in srgb, var(--accent) 45%, var(--line)); }

.table {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.table th {
  background: color-mix(in srgb, var(--accent) 16%, var(--panel));
  color: var(--text);
}
.table tr:hover td { background: color-mix(in srgb, var(--accent) 8%, transparent); }

.fact {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--panel) 90%, var(--accent) 10%);
}
.fact b { color: var(--accent); }

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