/* GENEL */
body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f4f7f8;
}

/* Wrapper */
.portal-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

/* Portal Box */
.portal-box {
    background: #fff;
    padding: 40px 30px;
    border-radius: 12px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
    text-align: center;
}

/* Başlık */
.portal-box h1 {
    margin-bottom: 10px;
    font-size: 26px;
    color: #333;
}

/* Alt yazı */
.portal-box .subtitle {
    font-size: 14px;
    color: #666;
    margin-bottom: 20px;
}

/* Input */
.portal-box input[type="text"],
.portal-box input[type="password"] {
    width: 100%;
    padding: 12px;
    margin-bottom: 15px;
    border: 1px solid #ccc;
    border-radius: 8px;
    font-size: 14px;
}

/* Button */
.portal-box button {
    width: 100%;
    padding: 12px;
    border: none;
    background: #3498db;
    color: #fff;
    font-size: 16px;
    border-radius: 8px;
    cursor: pointer;
    transition: background 0.3s;
}

.portal-box button:hover {
    background: #2980b9;
}

/* Hata mesajı */
.error-box {
    background: #ffe6e6;
    color: #cc0000;
    padding: 10px;
    border-radius: 8px;
    margin-bottom: 15px;
    font-size: 14px;
}