:root {
    --primary-color: #4361ee;
    --primary-light: #4cc9f0;
    --secondary-color: #3f37c9;
    --success-color: #4ad66d;
    --danger-color: #f72585;
    --warning-color: #f8961e;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-color: #6c757d;
    --border-radius: 12px;
    --box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    font-family: 'Tajawal', sans-serif;
    background-color: #f5f7ff;
    color: var(--dark-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 20px;
    background-image: linear-gradient(135deg, #f5f7ff 0%, #e8ecff 100%);
}

.login-container {
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
}

.login-card {
    background-color: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    overflow: hidden;
    transition: var(--transition);
}

.login-header {
    padding: 30px;
    text-align: center;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
}

.login-header h1 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    font-weight: 700;
}

.login-header p {
    font-size: 1rem;
    opacity: 0.9;
}

.login-form {
    padding: 30px;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    padding: 15px;
    border-radius: var(--border-radius);
    margin-bottom: 20px;
    border: 1px solid #f5c6cb;
}

.alert-danger ul {
    padding-right: 20px;
}

.alert-danger li {
    margin-bottom: 5px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark-color);
}

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

.input-with-icon i {
    position: absolute;
    right: 15px;
    color: var(--gray-color);
    font-size: 1rem;
}

.input-with-icon input {
    width: 100%;
    padding: 15px 45px 15px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-family: 'Tajawal', sans-serif;
    font-size: 1rem;
    transition: var(--transition);
}

.input-with-icon input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(67, 97, 238, 0.2);
    outline: none;
}

.toggle-password {
    position: absolute;
    left: 15px;
    background: none;
    border: none;
    color: var(--gray-color);
    cursor: pointer;
    font-size: 1rem;
}

.forgot-password {
    text-align: left;
    margin-top: 8px;
}

.forgot-password a {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.forgot-password a:hover {
    text-decoration: underline;
}

.submit-btn {
    width: 100%;
    padding: 15px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-family: 'Tajawal', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin-top: 20px;
}

.submit-btn:hover {
    background: linear-gradient(135deg, var(--secondary-color), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(67, 97, 238, 0.3);
}

.loading-icon {
    display: none;
}

.register-link {
    text-align: center;
    margin-top: 20px;
    color: var(--gray-color);
}

.register-link a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.register-link a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .login-container {
        padding: 0 15px;
    }
    
    .login-header {
        padding: 20px;
    }
    
    .login-header h1 {
        font-size: 1.5rem;
    }
    
    .login-form {
        padding: 20px;
    }
    
    .input-with-icon input {
        padding: 12px 40px 12px 12px;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px;
    }
    
    .login-header h1 {
        font-size: 1.3rem;
    }
    
    .login-header p {
        font-size: 0.9rem;
    }
    
    .form-group label {
        font-size: 0.9rem;
    }
    
    .input-with-icon input {
        font-size: 0.9rem;
    }
    
    .submit-btn {
        padding: 12px;
        font-size: 0.9rem;
    }
}

/* Loading State */
.loading .btn-text {
    display: none;
}

.loading .loading-icon {
    display: block;
}