/* Header Base Styles */
#nav-main {
    padding: 0.75rem 1rem;
    background: rgba(255, 255, 255, 0.95) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    box-shadow: 0 2px 15px rgba(0, 0, 0, 0.04);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: sticky;
    top: 0;
    z-index: 1000;
    transition: all 0.3s ease;
}

.nav-main {
    background-color: #ffffff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    z-index: 9990;
}

/* Brand Logo */
#nav-main .navbar-brand {
    padding: 0.5rem;
    margin-right: 1.5rem;
}

#nav-main .navbar-brand img {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    /* height: 40px; */
    width: 10vw;
}

#nav-main .navbar-brand:hover img {
    transform: scale(1.05);
}

/* Navigation Items */
#nav-main .nav-item.fs-5 {
    margin: 0 0.15rem;
    position: relative;
    font-size: 1.1rem !important
}

#nav-main .nav-item.fs-5 .nav-link {
    color: #2d3436 !important;
    padding: 0.6rem 1rem !important;
    border-radius: 0.8rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    white-space: nowrap;
    position: relative;
    overflow: hidden;
}

#nav-main .nav-item.fs-5 .nav-link i {
    margin-right: 0.5rem;
    font-size: 1rem;
    transition: transform 0.3s ease;
    position: relative;
    z-index: 1;
}

/* Hover Effects */
#nav-main .nav-item.fs-5 .nav-link:hover {
    color: #0d6efd !important;
    background: rgba(13, 110, 253, 0.08);
    transform: translateY(-1px);
}

#nav-main .nav-item.fs-5 .nav-link:hover i {
    transform: scale(1.1);
}

/* Active State */
#nav-main .nav-item.fs-5 .nav-link.active {
    color: #0d6efd !important;
    background: rgba(13, 110, 253, 0.1);
    font-weight: 500;
    box-shadow: 0 2px 8px rgba(13, 110, 253, 0.15);
}

/* Desktop User Profile */
#nav-main .user-profile {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.2rem;
    border-radius: 1rem;
    background: linear-gradient(145deg, #f8f9fa, #ffffff);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

#nav-main .user-profile:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
}

#nav-main .user-profile i {
    font-size: 1.4rem;
    color: #0d6efd;
}

#nav-main .user-profile h2.blue {
    margin: 0;
    font-size: 1.1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 150px;
}

/* Mobile Styles */
#nav-main .navbar-toggler {
    padding: 0.5rem;
    border-radius: 0.8rem;
    transition: all 0.3s ease;
    border: none;
    position: relative;
    z-index: 1030;
}

#nav-main .navbar-toggler:focus {
    box-shadow: none;
    background: rgba(13, 110, 253, 0.1);
}

#nav-main .navbar-toggler i {
    font-size: 1.8rem;
    color: #2d3436;
    transition: transform 0.3s ease;
}

#nav-main .navbar-toggler[aria-expanded="true"] i {
    transform: rotate(90deg);
}

/* Mobile Navigation */
@media (max-width: 991.98px) {
    #nav-main {
        padding: 0.5rem 1rem;
    }

    .nav-main {
        position: sticky;
        top: 0;
        width: 100%;
        z-index: 9990;
        background-color: #ffffff;
        box-shadow: 0 2px 4px rgba(0,0,0,0.1);
    }

    #nav-main .navbar-brand img {
        /* height: 35px; */
        width: 15vw !important;
    }

    #nav-main .navbar-collapse {
        background: #ffffff;
        padding: 1rem;
        border-radius: 1rem;
        margin-top: 1rem;
        box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
        max-height: calc(100vh - 80px);
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
    }

    #nav-main .nav-item.fs-5 {
        margin: 0.35rem 0;
    }

    #nav-main .nav-item.fs-5 .nav-link {
        padding: 0.8rem 1rem !important;
        font-size: 1rem;
    }

    #nav-main .nav-item.fs-5 .nav-link:hover {
        transform: translateX(5px);
    }

    #nav-main .user-profile h2.blue {
        font-size: 1rem;
        max-width: 120px;
    }

    .nav-main {
        position: relative;
        z-index: 9990;
    }

    .nav-main .dropdown-menu {
        position: absolute !important;
        z-index: 9995;
        box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    }

    .nav-main .nav-item.dropdown {
        position: static;
    }

    .nav-main .dropdown-menu {
        margin-top: 0;
        border-radius: 0 0 8px 8px;
        border-top: none;
        width: 100%;
        padding: 0.5rem 0;
        background-color: #fff;
    }

    .nav-main .dropdown-item {
        padding: 0.75rem 1.5rem;
    }
}

/* Small Mobile Devices */
@media (max-width: 575.98px) {
    #nav-main {
        padding: 0.4rem 0.75rem;
    }

    #nav-main .navbar-brand img {
        /* height: 30px; */
        width: 25vw !important;
    }

    #nav-main .nav-item.fs-5 .nav-link {
        font-size: 0.95rem;
        padding: 0.7rem 0.875rem !important;
    }

    #nav-main .user-profile {
        padding: 0.5rem 0.875rem;
    }

    #nav-main .user-profile h2.blue {
        font-size: 0.9rem;
        max-width: 100px;
    }
}

/* Landscape Mode */
@media screen and (orientation: landscape) and (max-height: 576px) {
    #nav-main .navbar-collapse {
        max-height: 80vh;
        overflow-y: auto;
    }

    #nav-main .nav-item.fs-5 {
        margin: 0.25rem 0;
    }

    #nav-main .nav-item.fs-5 .nav-link {
        padding: 0.6rem 0.875rem !important;
    }
}

/* Animation for Menu */
@media (min-width: 992px) {
    #nav-main .navbar-nav {
        animation: navSlideDown 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
}

@keyframes navSlideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    #nav-main .nav-item.fs-5 .nav-link {
        padding: 0.8rem 1.2rem !important;
    }

    #nav-main .navbar-toggler {
        padding: 0.8rem;
    }

    #nav-main .user-profile {
        padding: 0.8rem 1.2rem;
    }
}

/* Smooth Scroll Behavior */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}