.menu {
    position: sticky;
    top: 0;
    z-index: 20;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 16px 24px;
    background: rgba(248, 251, 255, 0.82);
    border-bottom: 1px solid rgba(116, 138, 166, 0.18);
    backdrop-filter: blur(18px);
}

.menu a {
    padding: 9px 12px;
    border-radius: 999px;
    color: #314562;
    font-size: 0.95rem;
    font-weight: 600;
}

.menu a:hover {
    background: rgba(42, 109, 246, 0.1);
    color: #1948b6;
}

.menu a.is-active {
    background: linear-gradient(135deg, #2a6df6, #1948b6);
    color: #fff;
    box-shadow: 0 12px 24px rgba(42, 109, 246, 0.24);
}

.alert-banner {
    background: #fff9db;
    border-bottom: 1px solid #ffe08a;
    padding: 10px 24px;
}

.modal-shell {
    position: fixed;
    inset: 0;
    background: rgba(9, 17, 31, 0.48);
}

.modal-window {
    width: min(480px, calc(100vw - 32px));
    margin: 10vh auto;
    background: #fff;
    padding: 24px;
    border-radius: 22px;
}