:root {
  --glass: rgba(20,32,27,0.55);
}

body {
  background:
    radial-gradient(900px 600px at 85% -5%, rgba(79,224,168,0.10), transparent 60%),
    radial-gradient(700px 500px at 10% 110%, rgba(170,240,209,0.07), transparent 55%),
    linear-gradient(160deg, var(--bg), var(--panel-2));
  background-attachment: fixed;
}

.section:nth-of-type(even) {
  background:
    radial-gradient(600px 400px at 100% 0%, rgba(79,224,168,0.06), transparent 60%);
}

/* ===== Headings ===== */
.hero-title,
.article h2,
.section > .center h2 {
  font-weight: 700;
  letter-spacing: -0.01em;
}

.hero-title {
  background: linear-gradient(120deg, var(--text), var(--accent) 70%, var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.badge {
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px) saturate(1.4);
  backdrop-filter: blur(10px) saturate(1.4);
  border: 1px solid rgba(170,240,209,0.25);
  color: var(--accent);
  border-radius: 999px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ===== Frosted glass panels ===== */
.site-header {
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--line);
}

.card,
.feature,
.faq-item,
.fact,
.table {
  background: var(--glass);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  backdrop-filter: blur(14px) saturate(1.4);
  border: 1px solid rgba(170,240,209,0.25);
  border-radius: 22px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.35);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.card:hover,
.feature:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
  box-shadow: 0 14px 44px rgba(0,0,0,0.45), 0 0 24px rgba(79,224,168,0.18);
}

.fact {
  position: relative;
  overflow: hidden;
}

.fact b {
  color: var(--accent);
}

/* ===== Feature icons ===== */
.feature .icon {
  color: var(--accent);
  background: linear-gradient(150deg, rgba(79,224,168,0.18), rgba(79,224,168,0.04));
  border: 1px solid rgba(170,240,209,0.25);
  border-radius: 16px;
  box-shadow: inset 0 0 12px rgba(79,224,168,0.12);
}

/* ===== Buttons ===== */
.btn {
  border-radius: 14px;
  transition: transform .2s ease, box-shadow .25s ease, background .25s ease;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: var(--on-accent);
  border: none;
  box-shadow: 0 6px 20px rgba(79,224,168,0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(79,224,168,0.45), 0 0 18px rgba(79,224,168,0.35);
}

.btn-ghost {
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  color: var(--text);
}

.btn-ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== Tabs ===== */
.tab {
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: all .2s ease;
}

.tab.active,
.tab:hover {
  border-color: var(--accent);
  color: var(--accent);
  box-shadow: 0 0 16px rgba(79,224,168,0.2);
}

/* ===== Catalog tiles ===== */
.tile {
  border: 1px solid rgba(170,240,209,0.25);
  border-radius: 18px;
  box-shadow: 0 8px 28px rgba(0,0,0,0.35);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.tile:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
  box-shadow: 0 16px 40px rgba(0,0,0,0.5), 0 0 22px rgba(79,224,168,0.22);
}

.tile.noimg {
  background: linear-gradient(150deg, var(--panel), var(--panel-2));
}

.tile .gp { color: var(--accent); }
.tile .nm { color: var(--text); font-weight: 600; }

/* ===== FAQ ===== */
.faq-item {
  border-radius: 18px;
}

.faq-q {
  color: var(--text);
  font-weight: 600;
}

.faq-item:hover {
  border-color: var(--accent);
}

/* ===== Table ===== */
.table th {
  background: rgba(79,224,168,0.10);
  color: var(--accent);
}

.table td,
.table th {
  border-color: var(--line);
}