:root{
  --glass-blur: blur(14px) saturate(1.4);
}

body{
  background:
    radial-gradient(900px 600px at 12% -8%, rgba(79,224,168,0.10), transparent 60%),
    radial-gradient(800px 520px at 92% 0%, rgba(170,240,209,0.08), transparent 55%),
    linear-gradient(160deg, var(--bg), var(--panel-2));
  background-attachment: fixed;
}

.section:nth-of-type(even){
  background:
    radial-gradient(700px 420px at 85% 20%, rgba(79,224,168,0.06), transparent 60%);
}

/* ---------- Hero ---------- */
.hero{
  position: relative;
  background:
    radial-gradient(620px 360px at 22% 12%, rgba(79,224,168,0.16), transparent 62%),
    radial-gradient(520px 320px at 80% 80%, rgba(170,240,209,0.10), transparent 60%);
  border: 1px solid var(--line);
  border-radius: calc(var(--radius) + 8px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}
.hero-title{
  font-weight: 800;
  letter-spacing: -0.01em;
  background: linear-gradient(120deg, var(--text), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub{ color: var(--prose); }

.fact{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 6px 24px rgba(0,0,0,0.30);
}
.fact b{ color: var(--accent); }

/* ---------- Frosted glass panels ---------- */
.card,.feature,.faq-item,.tile,.fact{
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.card,.feature,.faq-item{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 22px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
}
.card:hover,.feature:hover{
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 14px 40px rgba(0,0,0,0.42);
}

.feature .icon{
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 16px;
  background: linear-gradient(150deg, rgba(79,224,168,0.16), rgba(170,240,209,0.04));
  box-shadow: inset 0 0 0 1px rgba(170,240,209,0.08);
}

/* ---------- Header ---------- */
.site-header{
  background: var(--panel);
  border-bottom: 1px solid var(--line);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}

/* ---------- Buttons ---------- */
.btn{ transition: transform .2s ease, box-shadow .2s ease, filter .2s ease; border-radius: 14px; }
.btn-primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent);
  border: 1px solid transparent;
  box-shadow: 0 6px 20px rgba(0,0,0,0.30);
}
.btn-primary:hover{
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(79,224,168,0.40), 0 0 18px rgba(79,224,168,0.35);
}
.btn-ghost{
  background: var(--panel);
  border: 1px solid var(--line);
  color: var(--text);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); }

/* ---------- Badges ---------- */
.badge{
  background: linear-gradient(135deg, rgba(79,224,168,0.18), rgba(170,240,209,0.06));
  border: 1px solid var(--line);
  color: var(--accent);
  border-radius: 999px;
}

/* ---------- Tabs ---------- */
.tab{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text-2);
  transition: all .2s ease;
}
.tab:hover{ color: var(--accent); border-color: var(--accent); }
.tab.active{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent);
  border-color: transparent;
}

/* ---------- Catalog tiles ---------- */
.tile{
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 18px;
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  box-shadow: 0 8px 28px rgba(0,0,0,0.32);
  overflow: hidden;
}
.tile:hover{
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 14px 38px rgba(79,224,168,0.28);
}
.tile .gp{ color: var(--accent); }
.tile .nm{ color: var(--text); font-weight: 600; }
.tile.noimg{
  background:
    radial-gradient(420px 260px at 50% -10%, rgba(79,224,168,0.18), transparent 60%),
    var(--panel);
}

/* ---------- FAQ ---------- */
.faq-q{ font-weight: 600; color: var(--text); }
.faq-q:hover{ color: var(--accent); }
.faq-a{ color: var(--prose); }

/* ---------- Article ---------- */
.article h2{
  font-weight: 700;
  letter-spacing: -0.005em;
  color: var(--text);
}
.article h2::after{
  content:"";
  display:block;
  width: 56px;
  height: 3px;
  margin-top: .4rem;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}
.table{
  border: 1px solid var(--line);
  border-radius: 14px;
  overflow: hidden;
}
.table th{
  background: linear-gradient(135deg, rgba(79,224,168,0.14), rgba(170,240,209,0.04));
  color: var(--text);
}
.table td{ border-color: var(--line); color: var(--prose); }