:root {
    --sky-primary: #2563eb;
    --sky-accent: #14b8a6;
    --sky-cyan: #38bdf8;
    --sky-ink: #0f172a;
    --sky-muted: #64748b;
    --sky-line: rgba(148, 163, 184, 0.22);
}
.sky-logo {
    width: 50px;
    height: 50px;
    margin: 0 auto 22px;
    border-radius: 18px;
    display: grid;
    place-items: center;
    color: #fff;
    background: linear-gradient(135deg, var(--sky-primary), var(--sky-cyan), var(--sky-accent));
    animation: breathe 3s ease-in-out infinite;
}

.sky-logo svg {
    width: 25px;
    height: 25px;
}

.sky-brand {
    margin: 0 0 12px;
    color: var(--sky-primary);
    font-size: 10.5px;
    font-weight: 800;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.sky-card {
    width: min(100%, 370px);
    padding: 40px 30px 26px;
    border-radius: 30px;
    background: rgba(255, 255, 255, 0.86);
    border: 1px solid rgba(226, 232, 240, 0.9);
    box-shadow: 0 24px 70px rgba(15, 23, 42, 0.08);
    text-align: center;
    position: relative;
    z-index: 2;
    animation: cardIn 0.55s ease both;
}

@media (max-width: 520px) {
    .sky-card {
        width: min(100%, 360px);
        padding: 36px 22px 24px;
        border-radius: 28px;
    }
}