/* === NAVBAR BASE === */
.custom-navbar {
    background: linear-gradient(135deg, #007bff, #6610f2);
    border-bottom: 2px solid rgba(255, 255, 255, 0.2);
    transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar-brand, .nav-link {
    color: #fff !important;
    transition: color 0.3s ease;
}

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

.navbar-toggler-icon {
    filter: brightness(0) invert(1);
}

.navbar.scrolled {
    background: linear-gradient(135deg, #0062cc, #5a0ee3);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.3);
}

/* === DARK MODE === */
body.dark-mode {
    background-color: #121212;
    color: #e5e5e5;
}

    body.dark-mode .custom-navbar {
        background: linear-gradient(135deg, #222, #000);
        border-bottom: 2px solid rgba(255, 255, 255, 0.1);
    }

    body.dark-mode .navbar-brand,
    body.dark-mode .nav-link {
        color: #e5e5e5 !important;
    }

        body.dark-mode .nav-link:hover::after {
            background-color: #fff;
        }

/* Theme toggle button */
#themeToggle {
    width: 36px;
    height: 36px;
    border: none;
    background: rgba(255, 255, 255, 0.2);
    color: #fff;
    transition: all 0.3s ease;
}

    #themeToggle:hover {
        background: rgba(255, 255, 255, 0.4);
    }

/* Dark mode button style */
body.dark-mode #themeToggle {
    background: rgba(255, 255, 255, 0.1);
    color: #f8f9fa;
}

    body.dark-mode #themeToggle:hover {
        background: rgba(255, 255, 255, 0.2);
    }
.navbar {
    box-shadow: 0 2px 6px rgba(0,0,0,0.2);
    position: sticky;
    top: 0;
    z-index: 1030; /* ensure it’s above other content */
}
.navbar {
    padding-top: 0.25rem;
    padding-bottom: 0.25rem;
}