/* Base Navigation Styles */
.nav {
    height: var(--header-height);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-weight: var(--font-semi);
}

.nav-logo {
    color: var(--second-color);
}

.nav-menu {}

.nav-list {}

.nav-item {
    margin-bottom: var(--mb4);
}

.nav-link {
    position: relative;
    color: #ffffff;
    transition: color 0.3s ease-in-out;
}

.nav-link:hover {
    position: relative;
}

.nav-link::after {
    position: absolute;
    content: '';
    width: 0;
    height: 0.18rem;
    left: 0;
    top: 1.25rem;
    background-color: var(--first-color);
    transition: width 0.3s ease-in-out, left 0.3s ease-in-out;
}

.nav-link:hover::after,
.active::after {
    width: 100%;
    left: 0;
}

/* Animation for active link */
.nav-link.active {
    color: var(--first-color);
}

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

/* Mobile menu button */
.nav-toggle {
    color: var(--second-color);
    font-size: 1.5rem;
    cursor: pointer;
}

/* =========================================
   LARGE SCREENS - Slide underline animation
   ========================================= */
@media screen and (min-width: 769px) {
    .nav-list {
        display: flex;
        padding-top: 0;
    }

    .nav-item {
        margin-left: var(--mb6);
        margin-bottom: 0;
    }

    .nav-toggle {
        display: none;
    }

    .nav-link {
        color: var(--second-color);
    }
}

/* =========================================
   SMALL/MOBILE SCREENS - Collapse and fade animation
   ========================================= */
@media screen and (max-width: 768px) {

    .nav-overlay {
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        background: rgba(0, 0, 0, 0.4);
        backdrop-filter: blur(3px);
        opacity: 0;
        visibility: hidden;
        transition: opacity 0.5s ease-in-out, visibility 0.5s ease-in-out;
        z-index: 9;
    }

    .show-overlay {
        opacity: 1;
        visibility: visible;
    }

    .nav-menu {
        position: fixed;
        top: var(--header-height);
        right: -100%;
        width: 33%;
        height: 100%;
        padding: 2rem 1rem;
        background-color: var(--second-color);
        transition: right 0.5s ease-in-out, opacity 0.5s ease-in-out, visibility 0.5s ease-in-out, transform 0.5s ease-in-out;
        box-shadow: -2px 0 5px rgba(0, 0, 0, 0.2);
        opacity: 0;
        visibility: hidden;
        transform: translateX(20px) scale(0.95);
        z-index: 10;
    }

    .show {
        right: 0;
        opacity: 1;
        visibility: visible;
        transform: translateX(0) scale(1);
    }

    .nav-link {
        opacity: 0;
        transform: translateY(-10px);
        transition: opacity 0.3s ease-in-out, transform 0.3s ease-in-out;
    }

    .show .nav-link {
        opacity: 1;
        transform: translateY(0);
    }
}