.bmbra-menu-shell {
    width: 100%;
    max-width: 1200px;
    margin: 28px auto;
    box-sizing: border-box;
    color: #101828;
}

.bmbra-menu-title {
    margin: 0 0 22px;
    text-align: center;
    color: #101828;
    font-size: clamp(27px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.12;
    letter-spacing: -0.035em;
}

.bmbra-menu-shell ul {
    list-style: none !important;
}

.bmbra-menu-grid,
.bmbra-submenu-grid {
    margin: 0;
    padding: 0;
}

.bmbra-menu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 14px;
}

.bmbra-menu-item {
    min-width: 0;
    margin: 0;
    padding: 0;
}

.bmbra-menu-button {
    position: relative;
    isolation: isolate;
    display: flex;
    width: 100%;
    min-height: 66px;
    box-sizing: border-box;
    align-items: center;
    gap: 11px;
    overflow: hidden;
    padding: 12px 14px;
    border: 2px solid rgba(255, 255, 255, 0.28);
    border-radius: 16px;
    background: linear-gradient(135deg, var(--bmbra-a), var(--bmbra-b));
    box-shadow: 0 10px 24px rgba(16, 24, 40, 0.17);
    color: #fff !important;
    font-size: 15px;
    font-weight: 750;
    line-height: 1.25;
    text-decoration: none !important;
    transform: translateY(0) scale(1);
    transition: transform 180ms ease, box-shadow 180ms ease, background 240ms ease, border-color 180ms ease;
}

.bmbra-menu-button::before {
    content: "";
    position: absolute;
    z-index: -1;
    inset: 0;
    background: linear-gradient(135deg, var(--bmbra-ha), var(--bmbra-hb));
    opacity: 0;
    transition: opacity 240ms ease;
}

.bmbra-menu-button::after {
    content: "";
    position: absolute;
    top: -80%;
    left: -35%;
    width: 32%;
    height: 260%;
    background: rgba(255, 255, 255, 0.28);
    transform: rotate(24deg) translateX(-240%);
    transition: transform 420ms ease;
}

.bmbra-menu-button:hover,
.bmbra-menu-button:focus-visible {
    color: #fff !important;
    border-color: rgba(255, 255, 255, 0.68);
    box-shadow: 0 16px 30px rgba(16, 24, 40, 0.28);
    transform: translateY(-4px) scale(1.015);
}

.bmbra-menu-button:hover::before,
.bmbra-menu-button:focus-visible::before {
    opacity: 1;
}

.bmbra-menu-button:hover::after,
.bmbra-menu-button:focus-visible::after {
    transform: rotate(24deg) translateX(540%);
}

.bmbra-menu-button:focus-visible {
    outline: 3px solid #101828;
    outline-offset: 3px;
}

.bmbra-menu-item.is-current > .bmbra-menu-button {
    border-color: #fff;
    box-shadow: 0 0 0 3px #101828, 0 14px 28px rgba(16, 24, 40, 0.25);
}

.bmbra-menu-number {
    display: inline-grid;
    flex: 0 0 35px;
    width: 35px;
    height: 35px;
    place-items: center;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 11px;
    background: rgba(255, 255, 255, 0.18);
    color: #fff;
    font-size: 12px;
    font-weight: 850;
    letter-spacing: 0.04em;
    backdrop-filter: blur(4px);
}

.bmbra-menu-label {
    min-width: 0;
    flex: 1 1 auto;
    overflow-wrap: anywhere;
}

.bmbra-menu-arrow {
    flex: 0 0 auto;
    font-size: 19px;
    line-height: 1;
    opacity: 0.82;
    transform: translateX(0);
    transition: transform 180ms ease, opacity 180ms ease;
}

.bmbra-menu-button:hover .bmbra-menu-arrow,
.bmbra-menu-button:focus-visible .bmbra-menu-arrow {
    opacity: 1;
    transform: translateX(4px);
}

.bmbra-submenu-grid {
    display: grid;
    gap: 9px;
    margin: 11px 0 0 12px;
    padding: 11px 0 2px 13px;
    border-left: 3px solid #d0d5dd;
}

.bmbra-submenu-grid .bmbra-menu-button {
    min-height: 54px;
    border-radius: 13px;
    font-size: 14px;
}

.bmbra-submenu-grid .bmbra-menu-number {
    flex-basis: 30px;
    width: 30px;
    height: 30px;
    border-radius: 9px;
    font-size: 11px;
}

.bmbra-menu-notice {
    margin: 20px 0;
    padding: 14px 16px;
    border: 1px solid #f79009;
    border-radius: 12px;
    background: #fffaeb;
    color: #93370d;
    font-weight: 650;
}

@media (max-width: 700px) {
    .bmbra-menu-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
    }

    .bmbra-menu-button {
        min-height: 59px;
        padding: 10px 11px;
        border-radius: 13px;
        font-size: 13px;
    }

    .bmbra-menu-number {
        flex-basis: 30px;
        width: 30px;
        height: 30px;
        border-radius: 9px;
        font-size: 11px;
    }

    .bmbra-menu-arrow {
        font-size: 16px;
    }
}

@media (max-width: 420px) {
    .bmbra-menu-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bmbra-menu-button,
    .bmbra-menu-button::before,
    .bmbra-menu-button::after,
    .bmbra-menu-arrow {
        transition: none;
    }
}