:root {
    color-scheme: dark;
    --background: #081222;
    --surface: #101f34;
    --text: #f2f6fc;
    --muted: #a8b7cb;
    --accent: #5bd6ed;
    --border: #263c55;
}
* { box-sizing: border-box; }
body {
    margin: 0;
    min-height: 100vh;
    min-height: 100svh;
    display: grid;
    place-items: center;
    padding: 24px;
    background: radial-gradient(ellipse at 15% 10%, #143451 0, transparent 55%),
                radial-gradient(ellipse at 90% 90%, #16244a 0, transparent 50%), var(--background);
    color: var(--text);
    font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}
.card {
    width: min(100%, 720px);
    padding: clamp(32px, 7vw, 76px) clamp(24px, 6vw, 64px);
    border: 1px solid var(--border);
    border-radius: 28px;
    background: linear-gradient(145deg, #15283be8, #0d182be8);
    box-shadow: 0 32px 100px #00000040;
    text-align: center;
}
.symbol {
    width: 60px;
    margin: 0 auto 32px;
    display: grid;
    gap: 7px;
}
.symbol span {
    display: block;
    height: 13px;
    border: 1px solid #5bd6ed66;
    background: #5bd6ed0d;
    border-radius: 4px;
    position: relative;
}
.symbol span::before {
    content: "";
    position: absolute;
    width: 4px;
    height: 4px;
    left: 7px;
    top: 3px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 8px 0 var(--accent);
}
h1 {
    margin: 0 0 18px;
    font-size: clamp(28px, 5.5vw, 46px);
    line-height: 1.15;
    letter-spacing: -0.04em;
    font-weight: 650;
    text-wrap: balance;
}
p { margin: 0; color: var(--muted); font-size: clamp(14px, 2.8vw, 17px); line-height: 1.8; }
strong { color: var(--text); font-weight: 500; white-space: nowrap; }
@media (max-width: 380px) {
    body { padding: 16px; }
    .card { border-radius: 22px; }
    strong { display: block; }
}