:root {
    --bg: #212B37;
    --panel: #1F4048;
    --text: #e2e8f0;
    --muted: #94a3b8;
    --brand: #328800;
    --radius: 16px
}

html,
body {
    margin: 0;
    height: 100%
}

body {
    font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, Helvetica Neue, Arial;
    line-height: 1.6;
    background: linear-gradient(180deg, #0b1023, #0f172a);
    color: var(--text)
}

.wrap {
    max-width: 900px;
    margin: 0 auto;
    padding: 28px 18px
}

header {
    position: sticky;
    top: 0;
    background: rgba(15, 23, 42, .8);
    backdrop-filter: blur(6px);
    border-bottom: 1px solid rgba(255, 255, 255, .08)
}

h1,
h2,
h3 {
    line-height: 1.25
}

h1 {
    font-size: clamp(24px, 4vw, 36px)
}

h2 {
    font-size: clamp(18px, 2.6vw, 24px);
    margin-top: 24px
}

.card {
    background: rgba(255, 255, 255, .04);
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: var(--radius);
    padding: 18px
}

a {
    color: var(--brand)
}

small,
.muted {
    color: var(--muted)
}

footer {
    margin: 40px 0 10px;
    color: var(--muted);
    text-align: center
}

ul {
    padding-left: 18px
}

.toc {
    display: block;
    padding: 12px;
    border-radius: 12px;
    background: rgba(255, 255, 255, .03);
    border: 1px solid rgba(255, 255, 255, .06)
}

.toc a {
    display: inline-block;
    margin: 4px 10px 4px 0
}

.badge {
    display: inline-block;
    background: rgba(34, 238, 61, 0.16);
    border: 1px solid rgba(34, 238, 61, 0.289);
    color: #d7eef1;
    border-radius: 999px;
    padding: 4px 10px;
    font-weight: 700
}