:root {
    --bg: #f3f0e8;
    --paper: #fffdf7;
    --ink: #191919;
    --muted: #666;
    --line: #222;
    --accent: #0b5fff;
    --warn: #b00020;
    --ok: #147a3f;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--ink);
    background:
        linear-gradient(90deg, rgba(0, 0, 0, .035) 1px, transparent 1px),
        linear-gradient(rgba(0, 0, 0, .035) 1px, transparent 1px),
        var(--bg);
    background-size: 24px 24px;
    line-height: 1.45;
}

a {
    color: var(--accent);
    font-weight: bold;
}

.page {
    max-width: 1080px;
    margin: 24px auto;
    padding: 0 16px 40px;
}

header {
    background: var(--paper);
    border: 3px solid var(--line);
    box-shadow: 8px 8px 0 var(--line);
    padding: 28px;
    margin-bottom: 28px;
    position: relative;
}

.datacenter-code {
    display: inline-block;
    border: 2px solid var(--line);
    padding: 6px 10px;
    background: #ffe66b;
    font-family: "Courier New", monospace;
    font-weight: bold;
    margin-bottom: 14px;
}

h1 {
    font-size: clamp(2.4rem, 8vw, 5.3rem);
    line-height: .9;
    margin: 0 0 12px;
    letter-spacing: -3px;
}

.image {
    max-width: 100%;
}

.tagline {
    max-width: 800px;
    font-size: 1.25rem;
    margin: 0;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr .8fr;
    gap: 22px;
    align-items: stretch;
}

.card {
    background: var(--paper);
    border: 3px solid var(--line);
    box-shadow: 6px 6px 0 var(--line);
    padding: 20px;
    margin-bottom: 22px;
}

.card h2 {
    margin: 0 0 12px;
    font-size: 1.6rem;
    border-bottom: 2px solid var(--line);
    padding-bottom: 8px;
}

.status {
    font-size: 1.2rem;
    font-weight: bold;
}

.status .light {
    display: inline-block;
    width: 14px;
    height: 14px;
    background: var(--ok);
    border: 2px solid var(--line);
    border-radius: 50%;
    margin-right: 8px;
    vertical-align: -1px;
    box-shadow: 0 0 18px rgba(20, 122, 63, .7);
}

.fineprint {
    color: var(--muted);
    font-size: .94rem;
}

.placeholder {
    min-height: 230px;
    border: 3px dashed var(--line);
    background:
        repeating-linear-gradient(45deg,
            #fffdf7,
            #fffdf7 12px,
            #eeeeee 12px,
            #eeeeee 24px);
    display: grid;
    place-items: center;
    text-align: center;
    padding: 18px;
    color: var(--muted);
    font-family: "Courier New", monospace;
}

.features {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

ul {
    padding-left: 22px;
    margin: 0;
}

li {
    margin: 8px 0;
}

.big-number {
    font-size: 3.2rem;
    font-weight: 900;
    line-height: 1;
    letter-spacing: -2px;
}

.metric-row {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 18px;
    text-align: center;
}

.metric {
    border: 2px solid var(--line);
    padding: 14px;
    background: #fff;
}

.customers {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 18px;
}

.customer {
    border: 2px solid var(--line);
    padding: 16px;
    background: #fff;
}

.customer strong {
    display: block;
    margin-bottom: 6px;
}

.emergency {
    background: #ffe1e1;
    border-color: var(--warn);
    box-shadow: 6px 6px 0 var(--warn);
}

.plan-table {
    width: 100%;
    border-collapse: collapse;
    background: #fff;
}

.plan-table th,
.plan-table td {
    border: 2px solid var(--line);
    padding: 10px;
    text-align: left;
    vertical-align: top;
}

.plan-table th {
    background: #e7ecff;
}

.blink {
    animation: blink 1.2s steps(1, start) infinite;
    color: var(--warn);
    font-weight: bold;
}

@keyframes blink {
    50% {
        opacity: 0;
    }
}

footer {
    margin-top: 28px;
    text-align: center;
    color: var(--muted);
    font-size: .95rem;
}

@media (max-width: 840px) {

    .hero-grid,
    .features,
    .metric-row,
    .customers {
        grid-template-columns: 1fr;
    }

    header {
        box-shadow: 5px 5px 0 var(--line);
    }

    .card {
        box-shadow: 4px 4px 0 var(--line);
    }
}