    * {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: linear-gradient(135deg, #1a1f25, #242c37);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    position: relative;
    overflow: hidden;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

/* Enhanced background animation */
body::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 10%, rgba(100, 181, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 90% 90%, rgba(25, 118, 210, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, rgba(30, 136, 229, 0.05) 0%, transparent 70%);
    animation: backgroundPulse 15s ease-in-out infinite;
    z-index: 0;
}

@keyframes backgroundPulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

        .page-container {
            width: 100%;
            max-width: 440px;
            position: relative;
            z-index: 1;
        }

        .auth-container {
            background: rgba(30, 40, 54, 0.95);
            backdrop-filter: blur(20px);
            width: 100%;
            padding: 2.8rem;
            border-radius: 24px;
            box-shadow: 
                0 20px 40px rgba(0, 0, 0, 0.3),
                0 0 0 1px rgba(255, 255, 255, 0.1),
                0 0 0 3px rgba(100, 181, 246, 0.1);
            position: relative;
            overflow: hidden;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }

        .auth-container:hover {
            transform: translateY(-5px);
            box-shadow: 
                0 25px 50px rgba(0, 0, 0, 0.35),
                0 0 0 1px rgba(255, 255, 255, 0.15),
                0 0 0 4px rgba(100, 181, 246, 0.15);
        }

        .auth-header {
            text-align: center;
            margin-bottom: 2.5rem;
            position: relative;
        }

        .auth-header::after {
            content: '';
            position: absolute;
            bottom: -1rem;
            left: 50%;
            transform: translateX(-50%);
            width: 50px;
            height: 3px;
            background: linear-gradient(90deg, #64b5f6, #1976d2);
            border-radius: 2px;
        }

        .auth-header h2 {
            color: #fff;
            font-size: 2.2rem;
            font-weight: 700;
            margin-bottom: 0.7rem;
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, #fff, #e3f2fd);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .auth-header p {
            color: #90a4ae;
            font-size: 1rem;
            line-height: 1.5;
        }

        .alert {
            padding: 1rem;
            border-radius: 12px;
            margin-bottom: 1.5rem;
            display: flex;
            align-items: center;
            font-size: 0.95rem;
        }

        .alert-danger {
            background: rgba(244, 67, 54, 0.1);
            color: #f44336;
            border: 1px solid rgba(244, 67, 54, 0.2);
        }

        .alert i {
            margin-right: 0.75rem;
            font-size: 1.2rem;
        }

        .auth-form {
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .form-group label {
            color: #e3f2fd;
            font-size: 0.95rem;
            font-weight: 500;
        }

        .input-group {
            position: relative;
            display: flex;
            align-items: center;
        }

        .input-group i {
            position: absolute;
            left: 1rem;
            color: #64b5f6;
            font-size: 1.1rem;
        }

        .input-group input {
            width: 100%;
            padding: 1rem 1rem 1rem 3rem;
            background: rgba(30, 40, 54, 0.7);
            border: 1px solid rgba(100, 181, 246, 0.2);
            border-radius: 12px;
            color: #fff;
            font-size: 1rem;
            transition: all 0.3s ease;
        }

        .input-group input:focus {
            outline: none;
            border-color: #64b5f6;
            box-shadow: 0 0 0 3px rgba(100, 181, 246, 0.2);
        }

        .input-group input.error {
            border-color: #f44336;
            box-shadow: 0 0 0 3px rgba(244, 67, 54, 0.2);
        }

        .checkbox-container {
            display: flex;
            align-items: center;
            gap: 0.5rem;
            color: #90a4ae;
            font-size: 0.9rem;
            cursor: pointer;
        }

        .checkbox-container input {
            display: none;
        }

        .checkmark {
            width: 18px;
            height: 18px;
            background: rgba(30, 40, 54, 0.7);
            border: 1px solid rgba(100, 181, 246, 0.2);
            border-radius: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
            transition: all 0.3s ease;
        }

        .checkbox-container input:checked + .checkmark {
            background: #64b5f6;
            border-color: #64b5f6;
        }

        .checkbox-container input:checked + .checkmark::after {
            content: '\f00c';
            font-family: 'Font Awesome 5 Free';
            font-weight: 900;
            color: #fff;
            font-size: 0.8rem;
        }

        .forgot-password {
            color: #64b5f6;
            text-decoration: none;
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }

        .forgot-password:hover {
            color: #90caf9;
            text-decoration: underline;
        }

        .submit-btn {
            background: linear-gradient(135deg, #64b5f6, #1976d2);
            color: #fff;
            border: none;
            border-radius: 12px;
            padding: 1rem;
            font-size: 1rem;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
        }

        .submit-btn:hover {
            background: linear-gradient(135deg, #90caf9, #2196f3);
            transform: translateY(-2px);
            box-shadow: 0 5px 15px rgba(33, 150, 243, 0.3);
        }

        .submit-btn:active {
            transform: translateY(0);
        }

        .auth-footer {
            margin-top: 2rem;
            text-align: center;
            color: #90a4ae;
            font-size: 0.95rem;
        }

        .auth-footer a {
            color: #64b5f6;
            text-decoration: none;
            font-weight: 500;
            transition: color 0.3s ease;
        }

        .auth-footer a:hover {
            color: #90caf9;
            text-decoration: underline;
        }

        @media (max-width: 480px) {
            .auth-container {
                padding: 2rem;
            }

            .auth-header h2 {
                font-size: 1.8rem;
            }
        }