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

body {

    font-family: Arial, sans-serif;

    min-height: 100vh;

    background-image: url("../images/apartment.jpg");

    background-size: cover;

    background-position: center;
}

.overlay {

    min-height: 100vh;

    background: rgba(0, 0, 0, 0.55);

    display: flex;

    justify-content: center;

    align-items: center;

    padding: 20px;
}

.card {

    width: 100%;

    max-width: 420px;

    background: white;

    border-radius: 25px;

    padding: 30px;

    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
}

h1 {

    text-align: center;

    color: #f59e0b;

    margin-bottom: 8px;
}

.subtitle {

    text-align: center;

    color: #666;

    margin-bottom: 25px;
}

input {

    width: 100%;

    padding: 14px;

    border: 1px solid #ddd;

    border-radius: 12px;

    margin-bottom: 15px;

    font-size: 15px;
}

button {

    width: 100%;

    padding: 14px;

    border: none;

    border-radius: 12px;

    background: #f59e0b;

    color: white;

    font-size: 16px;

    cursor: pointer;
}

button:hover {

    opacity: 0.9;
}

.alert {

    background: #ffe4e4;

    color: #c0392b;

    padding: 12px;

    border-radius: 10px;

    margin-bottom: 15px;
}

.login-link {

    margin-top: 20px;

    text-align: center;
}

.login-link a {

    color: #f59e0b;

    text-decoration: none;
}