:root {
    --bg: #05070f;
    --ink: #dbe4f4;
    --ink-dim: #94a3bd;
    --ink-faint: #64718c;
    --azure: #7db2ff;
    --periwinkle: #b7c8ff;

    --pane: rgba(7, 11, 22, 0.72);
    --edge: rgba(140, 175, 255, 0.16);
    --edge-hot: rgba(140, 175, 255, 0.42);

    --mono: 'Fira Code', ui-monospace, Consolas, monospace;
    --sans: 'Inter', ui-sans-serif, system-ui, sans-serif;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font: 16px/1.7 var(--sans);

    background-image:
        radial-gradient(120% 80% at 50% -10%, rgba(45, 90, 190, .22), transparent 60%),
        radial-gradient(80% 60% at 50% 110%, rgba(30, 70, 160, .18), transparent 60%);
    background-attachment: fixed;
}

.wrap {
    max-width: 720px;
    margin: 0 auto;
    padding: 40px 24px 72px;
}

.back {
    font: 500 12px/1 var(--mono);
    letter-spacing: .12em;
    text-transform: uppercase;
    color: var(--ink-faint);
    text-decoration: none;
}
.back:hover { color: var(--azure); }

h1 {
    margin: 22px 0 10px;
    font: 500 42px/1.1 var(--sans);
    letter-spacing: -.02em;
}

.lede {
    margin: 0;
    max-width: 34em;
    font-size: 18px;
    color: var(--ink-dim);
}

.hero {
    margin: 40px 0 8px;
    text-align: center;
}

#clock {
    width: 300px;
    height: 300px;
    max-width: 82vw;

    background: #fff;
    border-radius: 10px;
    padding: 14px;
    box-shadow: 0 18px 50px -14px rgba(0, 0, 0, .7);
    image-rendering: pixelated;
}

figcaption {
    margin-top: 14px;
    font: 500 11px/1.4 var(--mono);
    letter-spacing: .14em;
    text-transform: uppercase;
}

.dim { color: var(--ink-faint); }

.stage {
    display: grid;
    grid-template-columns: 88px 1fr;
    gap: 28px;
    padding: 40px 0;
    border-top: 1px solid var(--edge);
}
.stage:first-of-type { margin-top: 40px; }

.stage__mark {
    display: flex;
    flex-direction: column;
    gap: 6px;
    position: sticky;
    top: 28px;
    align-self: start;
    font: 500 11px/1.3 var(--mono);
    letter-spacing: .12em;
    text-transform: uppercase;
}
.stage__mark .n { font-size: 22px; color: var(--azure); letter-spacing: 0; }
.stage__mark .k { color: var(--ink-faint); }

.stage__body h2 {
    margin: 0 0 14px;
    font: 500 24px/1.3 var(--sans);
    letter-spacing: -.01em;
}
.stage__body p { margin: 0 0 16px; max-width: 36em; }
.stage__body p:last-child { margin-bottom: 0; }

a { color: var(--periwinkle); }
a:hover { color: var(--azure); }

.cta {
    display: inline-block;
    margin-right: 10px;
    padding: 9px 15px;
    border: 1px solid var(--edge-hot);
    border-radius: 6px;
    background: var(--pane);
    font: 500 14px/1 var(--sans);
    text-decoration: none;
}
.cta:hover { border-color: var(--azure); }

.shot {
    margin: 22px 0 18px;
    max-width: 36em;
}

.shot img {
    display: block;
    max-width: 100%;
    max-height: 540px;
    width: auto;
    border: 1px solid var(--edge);
    border-radius: 8px;
    background: #04060d;
}

.shot figcaption {
    margin-top: 10px;
    font: 400 12px/1.6 var(--mono);
    color: var(--ink-faint);
    text-transform: none;
    letter-spacing: 0;
    text-align: left;
}

.todo {
    padding: 10px 13px;
    border-left: 2px solid #ffb340;
    background: rgba(255, 179, 64, .07);
    color: #ffc978;
    font: 400 13px/1.6 var(--mono);
}

.foot {
    margin-top: 48px;
    padding-top: 22px;
    border-top: 1px solid var(--edge);
    font-size: 14px;
    color: var(--ink-faint);
}

@media (max-width: 640px) {
    h1 { font-size: 34px; }
    .stage { grid-template-columns: 1fr; gap: 12px; padding: 32px 0; }
    .stage__mark { position: static; flex-direction: row; gap: 12px; align-items: baseline; }
    .stage__mark .n { font-size: 16px; }
}