.nav-solutions {
    position: relative;
}

.nav-demo-mobile {
    display: none !important;
}

.nav-solutions summary {
    display: flex;
    min-height: 44px;
    align-items: center;
    gap: 8px;
    color: var(--soft, var(--ink-soft));
    font-size: .86rem;
    font-weight: 750;
    list-style: none;
    cursor: pointer;
}

.nav-solutions summary::-webkit-details-marker { display: none; }
.nav-solutions summary::marker { content: ""; }
.nav-solutions summary::after {
    width: 7px;
    height: 7px;
    margin-top: -4px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    content: "";
    transform: rotate(45deg);
    transition: transform .2s ease, margin .2s ease;
}
.nav-solutions[open] summary { color: var(--deep, var(--ink-deep)); }
.nav-solutions[open] summary::after { margin-top: 4px; transform: rotate(225deg); }

.solutions-mega {
    position: fixed;
    z-index: 120;
    top: 86px;
    left: 50%;
    display: grid;
    width: min(calc(100vw - 40px), 980px);
    grid-template-columns: 1.15fr 1.15fr .9fr;
    gap: 12px;
    border: 1px solid var(--line);
    border-radius: 24px;
    padding: 14px;
    background: rgba(255, 255, 255, .99);
    box-shadow: 0 28px 70px rgba(6, 28, 41, .19);
    transform: translateX(-50%);
}

.solution-group {
    border-radius: 16px;
    padding: 20px;
    background: var(--cream);
}

.solution-group > strong {
    display: block;
    margin-bottom: 11px;
    color: var(--deep, var(--ink-deep));
    font-size: .68rem;
    font-weight: 850;
    letter-spacing: .08em;
    text-transform: uppercase;
}

.solution-group a {
    display: block;
    margin: 0;
    border-radius: 9px;
    padding: 8px 10px;
    color: var(--soft, var(--ink-soft));
    font-size: .76rem;
    font-weight: 700;
    line-height: 1.35;
    text-decoration: none;
}

.solution-group a:hover,
.solution-group a:focus-visible {
    background: #fff;
    color: var(--deep, var(--ink-deep));
    outline: none;
}

@media (max-width: 900px) {
    .main-nav,
    .nav {
        max-height: calc(100dvh - 76px);
        overflow-y: auto;
        overscroll-behavior: contain;
    }
    .nav-solutions summary { min-height: 52px; border-bottom: 1px solid var(--line); padding: 12px 4px; font-size: .88rem; }
    .solutions-mega {
        position: static;
        width: auto;
        grid-template-columns: 1fr;
        gap: 8px;
        border: 0;
        border-radius: 0;
        padding: 8px 0 14px;
        background: transparent;
        box-shadow: none;
        transform: none;
    }
    .solution-group { padding: 14px; }
    .solution-group > strong { margin-bottom: 6px; }
    .solution-group a { min-height: 42px; padding: 10px; }
    .main-nav .nav-demo-mobile {
        display: flex !important;
        min-height: 48px;
        align-items: center;
        justify-content: center;
        margin-top: 12px;
        border-radius: 999px;
        padding: 12px 18px;
        background: var(--lime);
        color: var(--deep, var(--ink-deep));
        font-weight: 800;
    }
}

@media (prefers-reduced-motion: reduce) {
    .nav-solutions summary::after { transition: none; }
}