.card-nav-container {
    position: fixed;
    top: 2em;
    left: 50%;
    transform: translateX(-50%);
    width: auto;
    max-width: 95%;
    /* Above in-page chrome (e.g. project side-nav z-index: 1000), below overlay menu / modals */
    z-index: 1100;
    box-sizing: border-box;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

.card-nav {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2.5rem;
    background-color: #0a0a0a;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.card-nav-hamburger {
    display: none;
    background: rgba(0, 0, 0, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #fff;
    width: 44px;
    height: 44px;
    border-radius: 12px;
    padding: 0;
    cursor: pointer;
    place-items: center;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(8px);
}

.card-nav-hamburger svg {
    width: 22px;
    height: 22px;
    stroke: currentColor;
    stroke-width: 2.2;
    fill: none;
    stroke-linecap: round;
}

.card-nav-overlay {
    position: fixed;
    inset: 0;
    z-index: 5000;
    display: none;
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(6px);
    padding: 1.5rem;
}

.card-nav-overlay.open {
    display: grid;
    place-items: center;
}

.card-nav-overlay-panel {
    width: min(520px, 100%);
    background: rgba(0, 0, 0, 0.72);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    padding: 1.25rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
}

.card-nav-overlay-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    list-style: none;
    margin: 0;
    padding: 0;
    text-align: center;
}

.card-nav-overlay a {
    color: #fff;
    text-decoration: none;
    font-family: 'Outfit', sans-serif;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 1.05rem;
    padding: 0.55rem 0.8rem;
    border-radius: 12px;
    display: block;
    overflow-wrap: normal;
    hyphens: none;
}

.card-nav-overlay a:hover {
    background: rgba(255, 255, 255, 0.08);
}

.card-nav-overlay-group {
    margin-top: 0.35rem;
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.card-nav-overlay-group a {
    font-weight: 500;
    text-transform: none;
    letter-spacing: 0.2px;
    font-size: 0.98rem;
    opacity: 0.9;
}

.card-nav-links {
    display: flex;
    align-items: center;
    gap: 4rem;
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-item {
    position: relative;
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-item:not(:last-child)::after {
    content: '|';
    color: rgba(255, 255, 255, 0.2);
    margin-left: 2rem;
    position: absolute;
    right: -2rem;
    font-weight: 300;
}

.nav-link {
    font-family: 'Outfit', sans-serif;
    font-size: 1.1rem;
    font-weight: 500;
    color: #e0e0e0;
    text-decoration: none;
    transition: color 0.3s ease;
    white-space: nowrap;
    position: relative;
    padding-bottom: 4px;
    cursor: pointer;
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 0;
    background-color: #4289b2;
    transition: width 0.3s ease;
}

.nav-link:hover {
    color: #fff;
}

.nav-item:hover>.nav-link::after,
.nav-link:hover::after {
    width: 100%;
}

.nav-link.active {
    color: #fff;
    font-weight: 600;
}

.nav-link.active::after {
    width: 100%;
}

.dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    background-color: #0a0a0a;
    padding: 1rem;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    min-width: 200px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    pointer-events: none;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.nav-item:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(15px);
    pointer-events: auto;
}

.dropdown-menu::before {
    content: '';
    position: absolute;
    top: -20px;
    left: 0;
    width: 100%;
    height: 20px;
}

.dropdown-link {
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    color: var(--text-color);
    text-decoration: none;
    padding: 0.5rem 0.8rem;
    transition: color 0.2s ease;
    white-space: nowrap;
    display: block;
    position: relative;
}

.dropdown-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 1px;
    bottom: 4px;
    /* Adjust based on padding */
    left: 0.8rem;
    background-color: #4289b2;
    transition: width 0.3s ease;
}

.dropdown-link:hover {
    background-color: transparent;
    color: #fff;
    transform: translateX(5px);
}

.dropdown-link:hover::after {
    width: calc(100% - 1.6rem);
}

@media (max-width: 768px) {
    .card-nav-container {
        width: auto;
        top: max(1rem, env(safe-area-inset-top, 0px));
        left: auto;
        right: max(1rem, env(safe-area-inset-right, 0px));
        transform: none;
        max-width: none;
        padding: 0;
    }

    .card-nav {
        padding: 0;
        background: transparent;
        border: none;
        box-shadow: none;
    }

    .card-nav-links {
        display: none;
    }

    .card-nav-hamburger {
        display: grid;
    }

    /* Prevent text overflow on small screens */
    .nav-link,
    .dropdown-link {
        white-space: normal;
        overflow-wrap: normal;
        word-break: normal;
        hyphens: none;
        text-align: center;
    }

    .dropdown-menu {
        position: static;
        transform: none;
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        min-width: 0;
        width: 100%;
        margin-top: 0.6rem;
        padding: 0.75rem;
        display: none;
    }

    .nav-item.is-open .dropdown-menu {
        display: flex;
    }
}

@media (max-width: 480px) {
    .card-nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.8rem;
    }

    .card-nav {
        border-radius: 1rem;
        padding: 0.8rem;
    }
}