:root {
    --primary-color: #3498db;
    --background-color: #ecf0f1;
    --input-background-color: #ffffff;
    --input-border-color: #bdc3c7;
    --error-color: #e74c3c;
}

body {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: var(--background-color);
    font-family: 'Karla', sans-serif;
}

.login-container {
    display: flex;
    width: 400px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.left-panel {
    flex: 1;
    background: url('https://example.com/background-image.jpg') no-repeat center center;
    background-size: cover;
}

.right-panel {
    flex: 1;
    padding: 40px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

#logo {
    width: 80px;
    height: 80px;
    object-fit: cover;
    margin-bottom: 20px;
}

h1 {
    margin: 0 0 20px;
    color: var(--primary-color);
    font-size: 1.5em;
    font-weight: normal;
}

.login-form {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.input-label {
    display: flex;
    align-items: center;
    width: 100%;
    margin-bottom: 20px;
}

.input-label .icon {
    margin-right: 10px;
    font-size: 1.2em;
    color: #bdc3c7;
}

.login-form input {
    flex: 1;
    padding: 12px;
    border: 1px solid var(--input-border-color);
    border-radius: 5px;
    background-color: var(--input-background-color);
    font-size: 1em;
    color: #2c3e50;
    transition: border-color 0.3s;
}

.login-form input:focus {
    border-color: var(--primary-color);
    outline: none;
}

.login-form button {
    width: 100%;
    padding: 12px;
    border: none;
    border-radius: 5px;
    background-color: #000;
    color: #fff;
    font-size: 1em;
    cursor: pointer;
    transition: background-color 0.3s;
}

.login-form button:hover {
    background-color: #333;
}

.forgot-password {
    margin-top: 10px;
    color: #7f8c8d;
    font-size: 0.9em;
    text-decoration: none;
}

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

.social-login {
    text-align: center;
    margin: 20px 0;
}

.social-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
}

.social-buttons button {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    font-size: 1.2em;
    cursor: pointer;
}

.social-buttons .google {
    background-color: #db4437;
    color: #fff;
}

.social-buttons .facebook {
    background-color: #3b5998;
    color: #fff;
}

.social-buttons .twitter {
    background-color: #1da1f2;
    color: #fff;
}

.signup-link {
    text-align: center;
    margin-top: 20px;
    font-size: 0.9em;
    color: #7f8c8d;
}

.signup-link a {
    color: var(--primary-color);
    text-decoration: none;
}

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

.error-message {
    color: var(--error-color);
    font-size: 0.9em;
    margin-bottom: 10px;
    display: none;
}

footer {
    position: fixed;
    bottom: 0;
    right: 0;
    text-align: right;
    width: 100%;
    font-size: 0.8em;
    color: #7f8c8d;
    padding: 10px;
    background-color: var(--background-color);
}

footer p {
    margin: 0;
}