/* Animated gradient background */
    .quiz-hero {
        min-height: 100vh;
        background: linear-gradient(-45deg, #1a1a2e, #16213e, #0f3460, #533483);
        background-size: 400% 400%;
        animation: gradientShift 15s ease infinite;
    }

    @keyframes gradientShift {
        0% { background-position: 0% 50%; }
        50% { background-position: 100% 50%; }
        100% { background-position: 0% 50%; }
    }

    /* Glowing title */
    .quiz-title {
        font-size: 4rem;
        font-weight: 800;
        text-transform: uppercase;
        letter-spacing: 0.2em;
        text-shadow: 0 0 10px rgba(255, 193, 7, 0.8),
                     0 0 20px rgba(255, 193, 7, 0.6),
                     0 0 30px rgba(255, 193, 7, 0.4);
        color: #ffc107;
        animation: glow 2s ease-in-out infinite alternate;
    }

    @keyframes glow {
        from { text-shadow: 0 0 10px rgba(255, 193, 7, 0.8), 0 0 20px rgba(255, 193, 7, 0.6); }
        to { text-shadow: 0 0 20px rgba(255, 193, 7, 1), 0 0 30px rgba(255, 193, 7, 0.8), 0 0 40px rgba(255, 193, 7, 0.6); }
    }

    @media (max-width: 768px) {
        .quiz-title { font-size: 2.5rem; letter-spacing: 0.1em; }
    }

    /* Translucent login card */
    .login-card {
        background: rgba(255, 255, 255, 0.1);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 20px;
        box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
        transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

    .login-card:hover {
        transform: translateY(-5px);
        box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
    }

    /* Feature list styling */
    .feature-item {
        display: flex;
        align-items: center;
        padding: 1rem;
        margin-bottom: 0.75rem;
        background: rgba(255, 255, 255, 0.05);
        border-radius: 12px;
        border-left: 4px solid #ffc107;
        transition: all 0.3s ease;
    }

    .feature-item:hover {
        background: rgba(255, 255, 255, 0.1);
        transform: translateX(10px);
    }

    .feature-icon {
        width: 50px;
        height: 50px;
        display: flex;
        align-items: center;
        justify-content: center;
        background: linear-gradient(135deg, #ffc107, #ff9800);
        border-radius: 12px;
        margin-right: 1rem;
        flex-shrink: 0;
    }

    .feature-icon i {
        color: #1a1a2e;
        font-size: 1.25rem;
    }

    /* Stats cards */
    .stat-card {
        background: rgba(255, 255, 255, 0.08);
        backdrop-filter: blur(10px);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 16px;
        padding: 1.5rem;
        text-align: center;
        transition: all 0.3s ease;
    }

    .stat-card:hover {
        background: rgba(255, 255, 255, 0.12);
        transform: scale(1.05);
    }

    .stat-value {
        font-size: 2.5rem;
        font-weight: 700;
        color: #ffc107;
    }

    .stat-label {
        color: rgba(255, 255, 255, 0.7);
        font-size: 0.875rem;
        text-transform: uppercase;
        letter-spacing: 0.1em;
    }

    /* Login form inputs */
    .login-card .form-control {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        color: #fff;
        border-radius: 10px;
    }

    .login-card .form-control:focus {
        background: rgba(255, 255, 255, 0.15);
        border-color: #ffc107;
        box-shadow: 0 0 0 0.2rem rgba(255, 193, 7, 0.25);
        color: #fff;
    }

    .login-card .form-control::placeholder {
        color: rgba(255, 255, 255, 0.5);
    }

    .login-card .form-label {
        color: rgba(255, 255, 255, 0.8);
    }

    .login-card .btn-primary {
        background: linear-gradient(135deg, #ffc107, #ff9800);
        border: none;
        border-radius: 10px;
        padding: 0.75rem 2rem;
        font-weight: 600;
        text-transform: uppercase;
        letter-spacing: 0.05em;
        color: #1a1a2e;
        transition: all 0.3s ease;
    }

    .login-card .btn-primary:hover {
        transform: translateY(-2px);
        box-shadow: 0 5px 20px rgba(255, 193, 7, 0.4);
    }

    /* Floating particles effect (optional decorative) */
    .floating-icon {
        position: absolute;
        opacity: 0.1;
        animation: float 6s ease-in-out infinite;
    }

    @keyframes float {
        0%, 100% { transform: translateY(0px) rotate(0deg); }
        50% { transform: translateY(-20px) rotate(10deg); }
    }