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

body, html {
    height: 100%;
    font-family: 'Poppins', sans-serif;
}

/* Gambar latar belakang penuh */
.bg-img {
    background-image: url('../assets/img/gedung.png');
    background-size: cover;
    background-position: center;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.content {
    background: rgba(255, 255, 255, 0.9);
    padding: 40px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

h2 {
    margin-bottom: 30px;
    color: #333;
}

.input-box {
    position: relative;
    margin-bottom: 30px;
}

.input-box input {
    width: 100%;
    padding: 10px;
    font-size: 16px;
    border: none;
    border-bottom: 2px solid #333;
    outline: none;
    background: none;
    color: #333;
    transition: 0.3s ease;
}

.input-box label {
    position: absolute;
    top: 0;
    left: 0;
    font-size: 16px;
    padding: 10px 0;
    color: #333;
    pointer-events: none;
    transition: 0.5s ease;
}

.input-box input:focus ~ label,
.input-box input:valid ~ label {
    top: -20px;
    left: 0;
    color: #9b59b6;
    font-size: 12px;
}

.btn {
    width: 100%;
    padding: 10px;
    background: #FF4500;
    border: none;
    color: white;
    font-size: 16px;
    cursor: pointer;
    border-radius: 5px;
    transition: background 0.3s ease;
}

.btn:hover {
    background: #FFA500;
}

/* Responsif untuk layar kecil */
@media screen and (max-width: 768px) {
    .content {
        padding: 20px;
    }
}