:root {
    --bg: #f5f7fb;
    --card: #ffffff;
    --ink: #1b2a4a;
    --muted: #5a6782;
    --line: #dce3ef;
    --accent: #2f4fd8;
    --accent-wash: #e3e9ff;
}
@media (prefers-color-scheme: dark) {
    :root {
        --bg: #0f1626;
        --card: #172136;
        --ink: #e6ecf7;
        --muted: #a3b0c8;
        --line: #26324c;
        --accent: #93a9ff;
        --accent-wash: #1d2850;
    }
}
* { box-sizing: border-box; }
html, body { height: 100%; }
body {
    margin: 0;
    display: grid;
    grid-template-rows: 1fr auto;
    place-items: center;
    padding: 24px 16px;
    background: var(--bg);
    color: var(--ink);
    font-family: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.5;
}
.card {
    width: min(100%, 520px);
    padding: 44px 32px 36px;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 18px;
    text-align: center;
    box-shadow: 0 10px 30px rgba(15, 22, 38, .06);
}
.mark { width: 56px; height: 56px; color: var(--accent); }
.domain {
    margin: 16px 0 6px;
    color: var(--accent);
    font-size: .8125rem;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
}
h1 { margin: 0 0 10px; font-size: clamp(1.6rem, 1.2rem + 1.8vw, 2.2rem); line-height: 1.2; }
.lead { margin: 0 0 28px; color: var(--muted); font-size: 1.0625rem; }
.bar { height: 6px; overflow: hidden; border-radius: 999px; background: var(--accent-wash); }
.bar span {
    display: block;
    width: 35%;
    height: 100%;
    border-radius: inherit;
    background: var(--accent);
    animation: slide 2.4s ease-in-out infinite;
}
@keyframes slide {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(300%); }
}
@media (prefers-reduced-motion: reduce) {
    .bar span { width: 60%; animation: none; }
}
footer { padding-top: 20px; color: var(--muted); font-size: .8125rem; }