:root{
  --glow: 0 0 0 1px var(--line), 0 18px 50px -20px rgba(124,107,255,.55);
}

body{
  background:
    radial-gradient(1100px 620px at 78% -8%, color-mix(in oklab, var(--accent) 24%, transparent), transparent 60%),
    radial-gradient(900px 540px at 10% -4%, color-mix(in oklab, var(--accent-2) 18%, transparent), transparent 58%),
    var(--bg);
  background-attachment: fixed;
}

.section{ position: relative; }
.section::before{
  content:""; position:absolute; inset:0; pointer-events:none;
  background: radial-gradient(60% 40% at 50% 0%, color-mix(in oklab, var(--accent) 7%, transparent), transparent 70%);
}

/* ===== Hero aurora ===== */
.hero{ position: relative; overflow: hidden; }
.hero::before{
  content:""; position:absolute; inset:-30% -10% auto -10%; height:140%;
  pointer-events:none; z-index:0;
  background:
    radial-gradient(420px 280px at 22% 18%, color-mix(in oklab, var(--accent) 55%, transparent), transparent 70%),
    radial-gradient(460px 320px at 80% 8%, color-mix(in oklab, var(--accent-2) 45%, transparent), transparent 72%),
    radial-gradient(520px 360px at 60% 60%, color-mix(in oklab, var(--accent) 30%, transparent), transparent 75%);
  filter: saturate(1.2);
}
.hero > *{ position: relative; z-index:1; }

.hero-title{
  letter-spacing:-0.02em; font-weight:700;
  background: linear-gradient(100deg, var(--text), color-mix(in oklab, var(--accent) 70%, var(--text)));
  -webkit-background-clip:text; background-clip:text; color: transparent;
}

.fact{
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border:1px solid var(--line); border-radius: var(--radius);
  box-shadow: inset 0 1px 0 color-mix(in oklab, var(--accent) 16%, transparent);
}
.fact b{ color: var(--accent); }

/* ===== Header ===== */
.site-header{
  background: color-mix(in oklab, var(--panel) 78%, transparent);
  backdrop-filter: blur(12px) saturate(1.3);
  border-bottom:1px solid var(--line);
}

/* ===== Cards / features ===== */
.card,.feature,.faq-item{
  background: linear-gradient(180deg, var(--panel-2), var(--panel));
  border:1px solid var(--line); border-radius: var(--radius);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card{ position: relative; overflow: hidden; }
.card::after{
  content:""; position:absolute; inset:0 0 auto 0; height:1px;
  background: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);
  opacity:.5;
}
.card:hover,.feature:hover{
  transform: translateY(-4px);
  border-color: color-mix(in oklab, var(--accent) 50%, var(--line));
  box-shadow: var(--glow);
}

.feature .icon{
  color: var(--on-accent);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: calc(var(--radius) - 4px);
  box-shadow: 0 10px 28px -10px color-mix(in oklab, var(--accent) 80%, transparent);
}

/* ===== Buttons ===== */
.btn{ border-radius: calc(var(--radius) - 2px); transition: transform .2s ease, box-shadow .2s ease, filter .2s ease; }
.btn-primary{
  background: linear-gradient(135deg, var(--accent), color-mix(in oklab, var(--accent-2) 55%, var(--accent)));
  color: var(--on-accent); border:1px solid color-mix(in oklab, var(--accent) 60%, var(--line));
}
.btn-primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 0 0 1px var(--accent), 0 16px 40px -12px color-mix(in oklab, var(--accent) 85%, transparent);
  filter: brightness(1.06);
}
.btn-ghost{ border:1px solid var(--line); background: color-mix(in oklab, var(--panel) 60%, transparent); }
.btn-ghost:hover{ border-color: var(--accent); color: var(--text); }

/* ===== Badges / tabs ===== */
.badge{
  background: color-mix(in oklab, var(--accent) 16%, var(--panel));
  border:1px solid color-mix(in oklab, var(--accent) 40%, var(--line));
  color: color-mix(in oklab, var(--accent) 75%, var(--text));
}
.tab{ border:1px solid var(--line); border-radius: 999px; background: var(--panel); transition: all .2s ease; }
.tab:hover{ border-color: var(--accent); }
.tab.active{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent); border-color: transparent;
}

/* ===== Tiles ===== */
.tile{
  border:1px solid var(--line); border-radius: var(--radius); overflow: hidden;
  background: var(--panel); transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.tile:hover{
  transform: translateY(-4px);
  border-color: color-mix(in oklab, var(--accent) 55%, var(--line));
  box-shadow: var(--glow);
}
.tile .nm{ color: var(--text); font-weight:600; }
.tile .gp{ color: var(--accent); }
.tile.noimg{
  background:
    radial-gradient(120% 90% at 30% 0%, color-mix(in oklab, var(--accent) 22%, transparent), transparent 60%),
    linear-gradient(180deg, var(--panel-2), var(--panel));
}

/* ===== FAQ / article ===== */
.faq-item{ padding:0 2px; }
.faq-q{ color: var(--text); font-weight:600; }
.faq-q:hover{ color: var(--accent); }
.faq-item:hover{ border-color: color-mix(in oklab, var(--accent) 40%, var(--line)); }

.article h2{
  letter-spacing:-0.01em; font-weight:700;
  position: relative; padding-left:14px;
}
.article h2::before{
  content:""; position:absolute; left:0; top:.18em; bottom:.18em; width:4px; border-radius:4px;
  background: linear-gradient(180deg, var(--accent), var(--accent-2));
}
.table{ border:1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.table th{ background: color-mix(in oklab, var(--accent) 14%, var(--panel)); color: var(--text); }
.table tr:hover td{ background: color-mix(in oklab, var(--accent) 7%, transparent); }

.site-footer{ border-top:1px solid var(--line); background: color-mix(in oklab, var(--panel) 60%, var(--bg)); }