/* Scrollbars */
    ::-webkit-scrollbar {
        width: 8px;
        height: 8px;
    }
    ::-webkit-scrollbar-track {
        background: #f0f0f0;
    }
    ::-webkit-scrollbar-thumb {
        background-color: var(--bs-primary-dark);
        border-radius: 10px;
    }
    ::-webkit-scrollbar-thumb:hover {
        background-color: var(--bs-primary);
    }

/* ============================= */
/* Headings                      */
/* ============================= */
h1, h2, h3, h4, h5, h6 {
    color: var(--bs-dark);
    font-weight: 700;
    margin-bottom: 1rem;
    padding-bottom: .3rem;
    border-bottom: 2px solid var(--bs-primary);
}

/* Individual heading sizes & border colors */
h1 { font-size: 2rem; border-color: var(--bs-primary-dark); }
h2 { font-size: 1.75rem; border-color: var(--bs-primary); }
h3 { font-size: 1.5rem; border-color: var(--bs-secondary); }
h4 { font-size: 1.25rem; border-color: var(--bs-success); }
h5 { font-size: 1.1rem; border-color: var(--bs-danger); }
h6 { font-size: 1rem; border-color: var(--bs-info); }

/* Gradient headings */
h1.gradient { background: linear-gradient(90deg, var(--bs-primary-dark), var(--bs-primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
h2.gradient { background: linear-gradient(90deg, var(--bs-primary), var(--bs-primary-dark)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
h3.gradient { background: linear-gradient(90deg, var(--bs-secondary), var(--bs-warning)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
h4.gradient { background: linear-gradient(90deg, var(--bs-success), #388E3C); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
h5.gradient { background: linear-gradient(90deg, var(--bs-danger), #D32F2F); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
h6.gradient { background: linear-gradient(90deg, var(--bs-info), #0097A7); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

/* Responsive headings */
@media (max-width: 768px) {
    h1 { font-size: 1.5rem; }
    h2 { font-size: 1.25rem; }
    h3 { font-size: 1.1rem; }
    h4 { font-size: 1rem; }
    h5 { font-size: .95rem; }
    h6 { font-size: .9rem; }
    h1,h2,h3,h4,h5,h6 { padding: 0.3rem 0.6rem; }
}

/* ============================= */
/* Forms                         */
/* ============================= */
.form-control, .form-select, textarea {
    border-radius: .5rem !important;
    border: 1px solid #BBDEFB !important;
    padding: .5rem .75rem;
    transition: all .3s ease;
    background-color: #fff;
    color: var(--bs-body-color);
}

.form-control:focus, .form-select:focus, textarea:focus {
    border-color: var(--bs-primary) !important;
    box-shadow: 0 0 0 .25rem rgba(30,136,229,.25) !important;
}

.form-label { font-weight: 600; color: var(--bs-body-color); }
.form-text { font-size: .85rem; color: var(--bs-muted); }

/* Validation states */
.is-valid {
    border-color: #4CAF50 !important;
    box-shadow: 0 0 0 .25rem rgba(76,175,80,.25) !important;
}
.is-invalid {
    border-color: #F44336 !important;
    box-shadow: 0 0 0 .25rem rgba(244,67,54,.25) !important;
}

/* Form-check & Switch */
.form-check-input { border-radius: .25em; transition: all .3s ease; }
.form-check-input:checked { background-color: var(--bs-primary); border-color: var(--bs-primary); }
.form-switch .form-check-input { border-radius: 2em; }

/* Additional missing classes */
/* Floating labels support */
.form-floating > .form-control,
.form-floating > .form-select {
    height: calc(3.5rem + 2px);
    padding: 1rem .75rem .25rem .75rem;
}

.form-floating > label {
    padding: 1rem .75rem .25rem .75rem;
    pointer-events: none;
    transition: all .2s ease-in-out;
}

/* Custom file input */
.form-control-file {
    display: block;
    width: 100%;
}

/* Input group */
.input-group > .form-control,
.input-group > .form-select {
    border-radius: .5rem;
}


    /* ============================= */
    /* Alerts                        */
    /* ============================= */
    .alert {
        border-radius: .5rem;
        padding: 1rem 1.25rem;
        font-size: .95rem;
        transition: all .3s ease;
    }
    .alert-primary   { background-color: rgba(30,136,229,.1); color: var(--bs-primary); border: 1px solid rgba(30,136,229,.3);}
    .alert-secondary { background-color: rgba(255,183,77,.1); color: var(--bs-secondary); border: 1px solid rgba(255,183,77,.3);}
    .alert-success   { background-color: rgba(76,175,80,.1); color: var(--bs-success); border: 1px solid rgba(76,175,80,.3);}
    .alert-danger    { background-color: rgba(244,67,54,.1); color: var(--bs-danger); border: 1px solid rgba(244,67,54,.3);}
    .alert-warning   { background-color: rgba(255,183,77,.1); color: var(--bs-warning); border: 1px solid rgba(255,183,77,.3);}
    .alert-info      { background-color: rgba(0,188,212,.1); color: var(--bs-info); border: 1px solid rgba(0,188,212,.3); }

    /* ============================= */
    /* Badges                        */
    /* ============================= */
    .badge {
        font-weight: 600;
        border-radius: .5rem;
        padding: .35em .65em;
        transition: all .3s ease;
    }

    /* Standard colors */
    .badge-primary   { background-color: var(--bs-primary);   color: var(--bs-light); }
    .badge-secondary { background-color: var(--bs-secondary); color: var(--bs-body-color); }
    .badge-success   { background-color: var(--bs-success);   color: var(--bs-light); }
    .badge-danger    { background-color: var(--bs-danger);    color: var(--bs-light); }
    .badge-warning   { background-color: var(--bs-warning);   color: var(--bs-body-color); }
    .badge-info      { background-color: var(--bs-info);      color: var(--bs-light); }

    /* Missing variants */
    .badge-light     { background-color: var(--bs-light);     color: #212529; }
    .badge-dark      { background-color: var(--bs-dark);      color: #fff; }

    /* Optional hover effect */
    .badge:hover {
        opacity: 0.85;
        transform: translateY(-1px);
    }
    /* ============================= */
    /* Gradient Badges               */
    /* ============================= */
    .badge-gradient-primary {
        background: linear-gradient(45deg, var(--bs-primary), var(--bs-primary-dark));
        color: #fff;
    }
    .badge-gradient-secondary {
        background: linear-gradient(45deg, var(--bs-secondary), #6c757d);
        color: #fff;
    }
    .badge-gradient-success {
        background: linear-gradient(45deg, var(--bs-success), #198754);
        color: #fff;
    }
    .badge-gradient-danger {
        background: linear-gradient(45deg, var(--bs-danger), #dc3545);
        color: #fff;
    }
    .badge-gradient-warning {
        background: linear-gradient(45deg, var(--bs-warning), #ffc107);
        color: #212529;
    }
    .badge-gradient-info {
        background: linear-gradient(45deg, var(--bs-info), #0dcaf0);
        color: #fff;
    }
    .badge-gradient-light {
        background: linear-gradient(45deg, #f8f9fa, #e9ecef);
        color: #212529;
    }
    .badge-gradient-dark {
        background: linear-gradient(45deg, #212529, #343a40);
        color: #fff;
    }

    /* Optional subtle hover effect */
    .badge-gradient-primary:hover,
    .badge-gradient-secondary:hover,
    .badge-gradient-success:hover,
    .badge-gradient-danger:hover,
    .badge-gradient-warning:hover,
    .badge-gradient-info:hover,
    .badge-gradient-light:hover,
    .badge-gradient-dark:hover {
        opacity: 0.85;
        transform: translateY(-1px);
        transition: all 0.3s ease;
    }


    /* ============================= */
    /* Tables                        */
    /* ============================= */
    .table {
        border-radius: .75rem;
        overflow: hidden;
        background-color: #fff;
        box-shadow: 0 .25rem .75rem rgba(0,0,0,.05);
    }
    .table th {
        background-color: var(--bs-primary);
        color: var(--bs-light);
        font-weight: 600;
    }
    .table td { color: var(--bs-body-color); vertical-align: middle; }
    .table-hover tbody tr:hover { background-color: rgba(30,136,229,.05); }

    @media (max-width: 768px) {
        .table-responsive { overflow-x: auto; }
    }

    /* ============================= */
    /* Pagination                    */
    /* ============================= */
    .pagination .page-item .page-link {
        border-radius: .5rem;
        color: var(--bs-primary);
        border: 1px solid #BBDEFB;
        transition: all .3s ease;
        padding: .5rem .75rem;
    }

    .pagination .page-item.active .page-link {
        background-color: var(--bs-primary);
        border-color: var(--bs-primary);
        color: var(--bs-light);
    }

    .pagination .page-item .page-link:hover {
        background-color: var(--bs-primary-dark);
        color: var(--bs-light);
        border-color: var(--bs-primary-dark);
    }

    /* Disabled state */
    .pagination .page-item.disabled .page-link {
        background-color: #e9ecef;
        color: #6c757d;
        border-color: #dee2e6;
        cursor: not-allowed;
    }

    /* Focus state */
    .pagination .page-item .page-link:focus {
        box-shadow: 0 0 0 0.25rem rgba(13,110,253,.25);
        outline: none;
    }

    /* Rounded pill pagination */
    .pagination .page-item .page-link.rounded-pill {
        border-radius: 50rem;
    }

 
    /* ============================= */
    /* Buttons                       */
    /* ============================= */
    .btn {
        transition: all .3s ease;
        border-radius: .5rem;
    }
    .btn-primary   { background-color: var(--bs-primary);   border-color: var(--bs-primary);   color: var(--bs-light); }
    .btn-secondary { background-color: var(--bs-secondary); border-color: var(--bs-secondary); color: var(--bs-body-color); }
    .btn-success   { background-color: var(--bs-success);   border-color: var(--bs-success);   color: var(--bs-light); }
    .btn-danger    { background-color: var(--bs-danger);    border-color: var(--bs-danger);    color: var(--bs-light); }
    .btn-warning   { background-color: var(--bs-warning);   border-color: var(--bs-warning);   color: var(--bs-body-color); }
    .btn-info      { background-color: var(--bs-info);      border-color: var(--bs-info);      color: var(--bs-light); }

    .btn-primary:hover   { background-color: var(--bs-primary-dark); transform: translateY(-2px); }
    .btn-secondary:hover { background-color: #FFA726;                 transform: translateY(-2px); }
    .btn-success:hover   { background-color: #388E3C;                 transform: translateY(-2px); }
    .btn-danger:hover    { background-color: #D32F2F;                 transform: translateY(-2px); }
    .btn-warning:hover   { background-color: #FFA726;                 transform: translateY(-2px); }
    .btn-info:hover      { background-color: #0097A7;                 transform: translateY(-2px); }

    /* Outline Variants */
    .btn-outline-primary   { border: 1px solid var(--bs-primary);   color: var(--bs-primary); }
    .btn-outline-secondary { border: 1px solid var(--bs-secondary); color: var(--bs-secondary); }
    .btn-outline-success   { border: 1px solid var(--bs-success);   color: var(--bs-success); }
    .btn-outline-danger    { border: 1px solid var(--bs-danger);    color: var(--bs-danger); }
    .btn-outline-warning   { border: 1px solid var(--bs-warning);   color: var(--bs-warning); }
    .btn-outline-info      { border: 1px solid var(--bs-info);      color: var(--bs-info); }
    /* Gradient button */
    .btn-gradient {
        background: linear-gradient(45deg, var(--bs-primary), var(--bs-primary-dark));
        border: none;
        color: #fff;
        transition: 0.3s;
    }
    .btn-gradient:hover {
        background: linear-gradient(45deg, var(--bs-primary-dark), var(--bs-primary));
        transform: translateY(-2px);
    }/* Gradient Button Variants */
    .btn-gradient-primary {
        background: linear-gradient(45deg, var(--bs-primary), var(--bs-primary-dark));
        border: none;
        color: #fff;
    }
    .btn-gradient-primary:hover {
        background: linear-gradient(45deg, var(--bs-primary-dark), var(--bs-primary));
        transform: translateY(-2px);
    }

    .btn-gradient-secondary {
        background: linear-gradient(45deg, var(--bs-secondary), #6c757d);
        border: none;
        color: #fff;
    }
    .btn-gradient-secondary:hover {
        background: linear-gradient(45deg, #6c757d, var(--bs-secondary));
        transform: translateY(-2px);
    }

    .btn-gradient-success {
        background: linear-gradient(45deg, var(--bs-success), #198754);
        border: none;
        color: #fff;
    }
    .btn-gradient-success:hover {
        background: linear-gradient(45deg, #198754, var(--bs-success));
        transform: translateY(-2px);
    }

    .btn-gradient-danger {
        background: linear-gradient(45deg, var(--bs-danger), #dc3545);
        border: none;
        color: #fff;
    }
    .btn-gradient-danger:hover {
        background: linear-gradient(45deg, #dc3545, var(--bs-danger));
        transform: translateY(-2px);
    }

    .btn-gradient-warning {
        background: linear-gradient(45deg, var(--bs-warning), #ffc107);
        border: none;
        color: #212529;
    }
    .btn-gradient-warning:hover {
        background: linear-gradient(45deg, #ffc107, var(--bs-warning));
        transform: translateY(-2px);
    }

    .btn-gradient-info {
        background: linear-gradient(45deg, var(--bs-info), #0dcaf0);
        border: none;
        color: #fff;
    }
    .btn-gradient-info:hover {
        background: linear-gradient(45deg, #0dcaf0, var(--bs-info));
        transform: translateY(-2px);
    }
    /* Gradient Button Light */
    .btn-gradient-light {
        background: linear-gradient(45deg, #f8f9fa, #e9ecef);
        border: none;
        color: #212529;
    }
    .btn-gradient-light:hover {
        background: linear-gradient(45deg, #e9ecef, #f8f9fa);
        transform: translateY(-2px);
    }

    /* Gradient Button Dark */
    .btn-gradient-dark {
        background: linear-gradient(45deg, #212529, #343a40);
        border: none;
        color: #fff;
    }
    .btn-gradient-dark:hover {
        background: linear-gradient(45deg, #343a40, #212529);
        transform: translateY(-2px);
    }

    /* ============================= */
    /* Header & Navbar               */
    /* ============================= */
    .header-glass {
        backdrop-filter: blur(6px) saturate(180%);
        -webkit-backdrop-filter: blur(6px) saturate(180%);
        background-color: var(--bs-primary-light, rgba(255,255,255,0.05)); /* Auto-theme primary-light */
        border-bottom: 1px solid rgba(255,255,255,0.2);
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        transition: background-color 0.3s ease, color 0.3s ease;
    }
    .header-glass h4 { font-weight: 700; font-size: 1.4rem; }
    .header-glass p  { font-size: .9rem; color: #E3F2FD; }
    /* Dark Mode Header */
    body.dark-mode .header-glass {
        background-color: var(--bs-primary-dark, rgba(20,20,30,0.5));
        border-color: rgba(255,255,255,0.15);
    }

/* =================== Glass / Profile Dropdown =================== */
/* Glass card example */
.glass-card {
    backdrop-filter: blur(12px) saturate(180%);
    -webkit-backdrop-filter: blur(12px) saturate(180%);
    background-color: rgba(255,255,255,0.35);
    border-radius: var(--radius-md);
    border: 1px solid rgba(255,255,255,0.2);
    padding:1rem;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Dropdown glass */
.dropdown-menu-glass {
    backdrop-filter: blur(12px) saturate(180%);
    background-color: rgba(255,255,255,0.4);
    border: 1px solid rgba(255,255,255,0.2);
    transition: background-color 0.3s ease, color 0.3s ease;
}

.dropdown-menu-glass,
.profile-dropdown {
    position: absolute; /* position relative to parent dropdown */
    z-index: 1050; /* Always on top (Bootstrap default for dropdown is 1000) */
    backdrop-filter: blur(15px);
    background: var(--glass-bg, rgba(255,255,255,0.05));
    border: 1px solid var(--glass-border, rgba(255,255,255,0.2));
    border-radius: 0.6rem;
    transition: all var(--transition-speed, 0.3s) ease;
}

/* Dropdown item hover */
.dropdown-menu-glass .dropdown-item,
.profile-dropdown .dropdown-item {
    color: var(--bs-body-color, #000);
    transition: background-color var(--transition-speed,0.3s), color var(--transition-speed,0.3s);
}

.dropdown-menu-glass .dropdown-item:hover,
.profile-dropdown .dropdown-item:hover {
    background: var(--gradient-hover, linear-gradient(90deg,#6a11cb,#2575fc));
    color: var(--gradient-hover-text, #fff);
}

/* =================== Navbar =================== */
.navbar {
    background-color: var(--bs-primary-dark) !important;
    z-index: 1040; /* lower than dropdowns */
}

.navbar .nav-link,
.navbar .navbar-brand {
    color: var(--bs-light, #fff) !important;
    font-weight: 500;
    position: relative;
}

/* Nav-link hover underline */
.navbar .nav-link::after {
    content: '';
    display: block;
    width: 0;
    height: 2px;
    background: var(--bs-secondary, #ff4081);
    transition: width .3s;
    position: absolute;
    bottom: 0;
    left: 0;
}

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

.navbar .nav-link:hover {
    color: var(--bs-secondary, #ff4081) !important;
}

/* =================== Dropdown Menus =================== */
.navbar .dropdown-menu {
    border-radius: 0.5rem;
    border: none;
    background: var(--dropdown-bg, var(--bs-light, #fff));
    box-shadow: 0 .75rem 1.25rem rgba(0,0,0,0.1);
    z-index: 1050; /* always above navbar */
}

/* =================== Submenu =================== */
.dropdown-submenu {
    position: relative;
}

.dropdown-submenu > .dropdown-menu {
    top: 0;
    left: 100%;
    margin-top: -1px;
    display: none;
    z-index: 1060; /* above normal dropdown */
}

.dropdown-submenu:hover > .dropdown-menu {
    display: block;
    padding-left: 16px;
}

/* Arrow icons for submenu */
.dropdown-submenu > a::after {
    content: "→";
    float: right;
    color: var(--bs-gray-600, #6c757d);
    transition: transform 0.2s, color 0.2s;
}

.dropdown-submenu:hover > a::after {
    content: "↓";
    color: var(--bs-secondary, #ff4081);
}

/* =================== Dropdown Items =================== */
.navbar .dropdown-item {
    color: var(--bs-body-color, #000);
    transition: background-color .3s, color .3s;
}

.navbar .dropdown-item:hover {
    background-color: var(--bs-primary, #1565c0);
    color: var(--bs-light, #fff);
}

/* =================== Nav-link Hover =================== */
.navbar-nav .nav-link:hover {
    background: rgba(255,255,255,0.1);
    border-radius: 0.5rem;
    transition: all var(--transition-speed, 0.3s) ease;
}



    /* ============================= */
    /* Cards                         */
    /* ============================= */
    .card {
        border-radius: .75rem;
        box-shadow: 0 .25rem .75rem rgba(0,0,0,.05);
        transition: transform .3s, box-shadow .3s;
    }
    .card:hover {
        transform: translateY(-4px);
        box-shadow: 0 .5rem 1rem rgba(0,0,0,.1);
    }

    /* ============================= */
    /* Footer                        */
    /* ============================= */
    footer {
        background: linear-gradient(90deg, var(--bs-primary-dark), var(--bs-primary));
        color: var(--bs-light);
        padding: 3rem 1rem;
        font-size: .95rem;
    }
    footer h3 { color: var(--bs-secondary); margin-bottom: 1rem; }
    footer a {
        color: #BBDEFB;
        text-decoration: none;
        transition: color .3s;
    }
    footer a:hover { color: var(--bs-light); }

    .footer-content {
        display: flex;
        flex-wrap: wrap;
        justify-content: space-between;
        gap: 1rem;
    }
    .footer-section { flex: 1 1 300px; }

    @media (max-width: 768px) {
        header h4 { font-size: 1.2rem; }
        header p  { font-size: .8rem; }
        .navbar .nav-link { font-size: .9rem; }
        .footer-content { flex-direction: column; text-align: center; }
        footer .footer-section { flex: 1 1 100%; margin-bottom: 1rem; }
    }

    /* ============================= */
    /* Custom Classes                */
    /* ============================= */
    /* ================== Notices ================== */
    .notice-marquee {
        height: auto;
        max-height: 50px;
        overflow: hidden;
        position: relative;
        background: rgba(255,255,255,0.7);
        backdrop-filter: blur(12px);
        border: 1px solid rgba(0,0,0,0.05);
        box-shadow: 0 6px 15px rgba(0,0,0,0.08);
    }

    .notice-list {
        display: flex;
        flex-direction: column;
        animation: scrollNotices 12s linear infinite;
    }

    .notice-item {
        padding: 10px 16px;
    }

    .notice-item a {
        color: #333;
        font-weight: 500;
        text-decoration: none;
        transition: color 0.3s ease;
    }

    .notice-item a:hover {
        color: var(--bs-primary);
    }

    /* Hover background effect */
    .hover-bg:hover {
        background: rgba(0,123,255,0.05);
    }

    /* Marquee animation */
    @keyframes scrollNotices {
        0%   { transform: translateY(100%); }
        100% { transform: translateY(-100%); }
    }


    .course-card {
        background: #ffffff;
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    .course-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(0,0,0,0.25);
    }

    #studentImageSlider .card {
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }
    #studentImageSlider .card:hover {
        transform: translateY(-5px);
        box-shadow: 0 8px 20px rgba(0,0,0,0.25);
    }

    .stat {
        width: 150px;
        transition: all 0.3s ease;
        background: #fff;
        border-radius: .5rem;
        box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        padding: 1rem;
    }
    .stat:hover {
        transform: translateY(-5px);
        box-shadow: 0 6px 15px rgba(0,0,0,0.15);
    }
    .stat-icon { font-size: 28px; color: var(--bs-primary); }

    #homeSlider img, #studentImageSlider img {
        transition: transform 0.5s ease, box-shadow 0.5s ease;
    }
    #homeSlider img:hover, #studentImageSlider img:hover {
        transform: scale(1.03);
        box-shadow: 0 8px 20px rgba(0,0,0,0.25);
    }

    /* ============================= */
    /* Utility Helpers (Bootstrap 5) */
    /* ============================= */
    /* ================= Primary ================= */
    .text-primary       { color: var(--bs-primary) !important; }
    .text-primary-light { color: var(--bs-primary-light) !important; }
    .text-primary-dark  { color: var(--bs-primary-dark) !important; }

    /* ================= Secondary ================= */
    .text-secondary       { color: var(--bs-secondary) !important; }
    .text-secondary-light { color: var(--bs-secondary-light) !important; }
    .text-secondary-dark  { color: var(--bs-secondary-dark) !important; }

    /* ================= Success ================= */
    .text-success       { color: var(--bs-success) !important; }
    .text-success-light { color: var(--bs-success-light) !important; }
    .text-success-dark  { color: var(--bs-success-dark) !important; }

    /* ================= Info ================= */
    .text-info       { color: var(--bs-info) !important; }
    .text-info-light { color: var(--bs-info-light) !important; }
    .text-info-dark  { color: var(--bs-info-dark) !important; }

    /* ================= Warning ================= */
    .text-warning       { color: var(--bs-warning) !important; }
    .text-warning-light { color: var(--bs-warning-light) !important; }
    .text-warning-dark  { color: var(--bs-warning-dark) !important; }

    /* ================= Danger ================= */
    .text-danger       { color: var(--bs-danger) !important; }
    .text-danger-light { color: var(--bs-danger-light) !important; }
    .text-danger-dark  { color: var(--bs-danger-dark) !important; }

    /* ================= Grayscale ================= */
    .text-muted   { color: var(--bs-muted) !important; }
    .text-dark    { color: var(--bs-dark) !important; }
    .text-light   { color: var(--bs-light) !important; }
    .text-body    { color: var(--bs-body-color) !important; }

    .bg-primary   { background-color: var(--bs-primary) !important; }
    .bg-secondary { background-color: var(--bs-secondary) !important; }
    .bg-success   { background-color: var(--bs-success) !important; }
    .bg-danger    { background-color: var(--bs-danger) !important; }
    .bg-warning   { background-color: var(--bs-warning) !important; }
    .bg-info      { background-color: var(--bs-info) !important; }
    .bg-light     { background-color: var(--bs-light) !important; }
    .bg-dark      { background-color: var(--bs-dark) !important; }
    .bg-gradient-primary   { background: linear-gradient(90deg, #0d6efd, #6610f2) !important; color: #fff; }
    .bg-gradient-secondary { background: linear-gradient(90deg, #6c757d, #495057) !important; color: #fff; }
    .bg-gradient-success   { background: linear-gradient(90deg, #198754, #20c997) !important; color: #fff; }
    .bg-gradient-danger    { background: linear-gradient(90deg, #dc3545, #fd7e14) !important; color: #fff; }
    .bg-gradient-warning   { background: linear-gradient(90deg, #ffc107, #ffcd39) !important; color: #212529; }
    .bg-gradient-info      { background: linear-gradient(90deg, #0dcaf0, #0dcaf0) !important; color: #fff; }
    .bg-gradient-light     { background: linear-gradient(90deg, #f8f9fa, #e9ecef) !important; color: #212529; }
    .bg-gradient-dark      { background: linear-gradient(90deg, #212529, #343a40) !important; color: #fff; }


    .shadow-sm { box-shadow: 0 .125rem .25rem rgba(0,0,0,.075) !important; }
    .shadow    { box-shadow: 0 .5rem 1rem rgba(0,0,0,.15) !important; }
    .shadow-lg { box-shadow: 0 1rem 3rem rgba(0,0,0,.175) !important; }

    .rounded   { border-radius: .25rem !important; }
    .rounded-sm{ border-radius: .2rem !important; }
    .rounded-lg{ border-radius: .75rem !important; }
    .rounded-circle { border-radius: 50% !important; }



/* ===================== Glass Header & Navbar ===================== */
.header-glass, .navbar-glass {
    backdrop-filter: blur(8px) saturate(180%);
    -webkit-backdrop-filter: blur(8px) saturate(180%);
    background-color: var(--bs-primary-light, rgba(255,255,255,0.05));
    border-bottom: 1px solid rgba(255,255,255,0.2);
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Glass dropdowns */
.dropdown-menu-glass {
    backdrop-filter: blur(10px) saturate(180%);
    -webkit-backdrop-filter: blur(10px) saturate(180%);
    background-color: var(--bs-primary-light, rgba(255,255,255,0.05));
    border: 1px solid rgba(255,255,255,0.2);
    transition: background-color 0.3s ease;
}

/* Navbar links */
.navbar-glass .nav-link {
    color: var(--bs-primary-dark-text, #fff);
}

/* Toggle button (optional, without dark mode functionality) */
#darkModeToggle {
    background-color: var(--bs-primary-light);
    color: var(--bs-primary-light-text);
    border: none;
    transition: all 0.3s ease;
}


/* =================== Notification Menu =================== */
.notification-menu {
    width: 360px;
    max-height: 480px;
    border-radius: 16px;
    overflow: hidden;
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bs-background, #0f0f15);
    box-shadow: 0 12px 30px rgba(0,0,0,0.4);
    padding: 0;
    transition: all var(--transition-speed, 0.3s) ease;
}

/* Header */
.notification-header {
    font-weight: 600;
    font-size: 1rem;
    padding: 0.75rem;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    background: linear-gradient(90deg,
        var(--bs-primary-dark, #4f46e5),
        var(--bs-primary, #0d6efd));
    color: var(--bs-primary-text, #fff);
    text-align: center;
    transition: background-color 0.3s ease;
}

/* Scrollable body */
.notification-body {
    max-height: 400px;
    overflow-y: auto;
    padding: 0.75rem;
    background-color: var(--bs-surface, #13131c);
}

/* Notification item */
.notification-item {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 0.8rem 1rem;
    cursor: pointer;
    border-radius: 12px;
    margin: 0.5rem 0;
    background: linear-gradient(145deg,
        var(--bs-gray-900, #1a1a28),
        var(--bs-gray-950, #0d0d17));
    box-shadow: 0 4px 15px rgba(0,0,0,0.3);
    transition: transform 0.2s ease, background 0.2s ease;
    position: relative;
}
.notification-item:hover {
    background: var(--gradient-hover,
        linear-gradient(145deg,#4f46e5,#0d6efd));
    transform: translateX(2px);
    box-shadow: 0 8px 25px rgba(0,0,0,0.5);
}

.notification-item img {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--bs-primary, #4f46e5);
}

/* Content */
.notification-content {
    flex: 1;
    font-size: 0.95rem;
    line-height: 1.4;
    color: var(--bs-text-primary, #e5e5e5);
}
.notification-time {
    font-size: 0.75rem;
    color: var(--bs-text-secondary, #a1a1a1);
    display: block;
    margin-top: 0.3rem;
}

/* Unread highlight */
.notification-unread {
    box-shadow: 0 0 8px 2px var(--bs-primary, rgba(79,70,229,0.6));
}
.notification-unread::after {
    content: '';
    position: absolute;
    top: 12px;
    right: 12px;
    width: 10px;
    height: 10px;
    background: var(--bs-primary, #4f46e5);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--bs-primary, #4f46e5);
}

/* Empty / loading state */
.notification-body .text-muted {
    padding: 2rem 0;
    text-align: center;
    font-size: 0.9rem;
    color: var(--bs-text-secondary, #888);
}

/* ===== Mobile Responsive ===== */
@media (max-width: 576px) {
  .notification-menu {
    width: 90vw;          /* প্রায় পুরো স্ক্রিন */
    max-width: 360px;     /* বড় স্ক্রিনে সীমা */
    max-height: 90vh;     /* স্ক্রিন উচ্চতার 90% */
    border-radius: 12px;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    margin: 0 auto;
  }
  .notification-body {
    max-height: calc(90vh - 3rem); /* হেডার বাদ দিয়ে বডির জন্য জায়গা */
    padding: 0.5rem;
  }
  .notification-item {
    padding: 0.6rem 0.8rem;
    gap: 0.5rem;
  }
  .notification-item img {
    width: 38px;
    height: 38px;
  }
  .notification-content {
    font-size: 0.9rem;
  }
  .notification-time {
    font-size: 0.7rem;
  }
}