body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', Arial, sans-serif;
    background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: #333;
}
.main-container {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 900px;
    padding: 2em;
}
.landing-text {
    max-width: 400px;
    margin-right: 3em;
    text-align: left;
}
.landing-text h1 {
    font-family: inherit;
    color: #007BFF;
    font-size: 2.5em;
    margin-bottom: 0.5em;
    border-bottom: none;
    padding-bottom: 0;
}
.landing-text p {
    line-height: 1.6;
    color: #6a6a6a;
}
.login-box {
    background: #fff;
    padding: 3em;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
    width: 300px;
    text-align: center;
}
.login-box h2 {
    font-family: inherit;
    color: #007BFF;
    border-bottom: 2px solid #e0e0e0;
    padding-bottom: 0.5em;
    margin-top: 0;
    margin-bottom: 1.5em;
}
.login-box input[type="text"], 
.login-box input[type="password"],
.login-box input[type="number"] { /* Tambahan untuk input captcha */
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-sizing: border-box;
    font-family: inherit;
}
.login-box button {
    width: 100%;
    padding: 10px;
    background-color: #007BFF;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-family: inherit;
    transition: background-color 0.3s ease;
}
.login-box button:hover {
    background-color: #0056b3;
}
.login-box .error {
    color: #f44336;
    margin-top: 1em;
}
.login-box .extra-links {
    margin-top: 2em;
    font-size: 0.9em;
}
.login-box .extra-links a {
    color: #007BFF;
    text-decoration: none;
    font-weight: bold;
    display: block;
    margin-top: 1em;
    padding: 10px;
    border: 1px solid #007BFF;
    border-radius: 4px;
    transition: all 0.3s ease;
}
.login-box .extra-links a:hover {
    background-color: #007BFF;
    color: white;
}
.login-box .extra-links p {
    margin-bottom: 0;
}

/* --- Gaya Baru untuk Captcha --- */

.captcha-container {
    margin-bottom: 20px;
}

.captcha-container p {
    font-size: 1.1em;
    color: #555;
    margin-bottom: 10px;
}

.captcha-question {
    font-weight: bold;
    color: #007BFF;
    font-size: 1.2em;
}

/* --- Responsive --- */

@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
        padding: 1em;
    }
    .landing-text {
        margin-right: 0;
        margin-bottom: 2em;
        text-align: center;
    }
    .landing-text h1 {
        font-size: 2em;
    }
    .landing-text p {
        font-size: 0.9em;
    }
    .login-box {
        width: 90%;
    }
}