body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    color: #000000;
    background-color: #FFFFFF;
    line-height: 1.6;
}

header {
    background-color: #000000;
    color: #FFFFFF;
    padding: 20px 10px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2em;
    font-weight: bold;
    margin-left: 10px;
}

nav {
    margin-right: 10px;
}

nav a {
    color: #FFFFFF;
    margin: 0 15px;
    text-decoration: none;
    font-weight: bold;
    padding: 5px 10px;
    transition: all 0.3s ease;
}

nav a:hover {
    background-color: #FFFFFF;
    color: #000000;
    border-radius: 5px;
    text-decoration: none;
}

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    margin-right: 10px;
}

.hamburger div {
    width: 25px;
    height: 3px;
    background-color: #FFFFFF;
    margin: 3px 0;
    transition: 0.3s;
}

.sidebar {
    display: none;
    /* Sembunyikan sidebar pada desktop */
    position: fixed;
    top: 0;
    right: -100%;
    width: 250px;
    height: 100%;
    background-color: #000000;
    color: #FFFFFF;
    padding: 20px;
    transition: right 0.3s ease;
    z-index: 1000;
}

.sidebar.active {
    right: 0;
}

.sidebar a {
    display: block;
    color: #FFFFFF;
    text-decoration: none;
    padding: 10px 0;
    font-weight: bold;
}

.sidebar a:hover {
    background-color: #FFFFFF;
    color: #000000;
    border-radius: 5px;
    padding-left: 10px;
}

.close-btn {
    position: absolute;
    top: 10px;
    right: 10px;
    font-size: 1.5em;
    cursor: pointer;
    color: #FFFFFF;
}

/* Modal Login - Improved Styling */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    /* Lebih gelap untuk kontras */
    justify-content: center;
    align-items: center;
    animation: fadeIn 0.3s ease-in-out;
    /* Animasi fade in */
}

.modal-content {
    background-color: #FFFFFF;
    padding: 30px;
    border-radius: 10px;
    /* Border radius lebih besar */
    width: 90%;
    max-width: 400px;
    /* Max width untuk responsivitas */
    text-align: center;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    /* Shadow untuk depth */
    position: relative;
    animation: slideIn 0.3s ease-in-out;
    /* Animasi slide in */
}

.modal-content h2 {
    margin-bottom: 20px;
    color: #000000;
    font-size: 1.5em;
}

.modal-content input {
    width: 100%;
    padding: 12px;
    margin: 10px 0;
    border: 1px solid #CCCCCC;
    border-radius: 5px;
    font-size: 1em;
    box-sizing: border-box;
    /* Pastikan padding tidak menambah lebar */
}

.modal-content input:focus {
    outline: none;
    border-color: #000000;
    /* Highlight border saat focus */
    box-shadow: 0 0 5px rgba(0, 0, 0, 0.2);
}

.modal-content button {
    background-color: #000000;
    color: #FFFFFF;
    padding: 12px 20px;
    border: none;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1em;
    width: 100%;
    margin-top: 10px;
    transition: background-color 0.3s ease;
}

.modal-content button:hover {
    background-color: #333333;
}

.close {
    color: #aaa;
    position: absolute;
    top: 10px;
    right: 15px;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

.close:hover {
    color: #000;
}

#errorMessage {
    color: #ff0000;
    margin-bottom: 10px;
    font-weight: bold;
}

/* Animasi */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.hero {
    padding: 100px 20px;
    text-align: center;
    background-color: #F5F5F5;
}

.hero h1 {
    font-size: 3em;
    margin-bottom: 20px;
}

.hero p {
    font-size: 1.2em;
    margin-bottom: 30px;
}

.btn {
    background-color: #000000;
    color: #FFFFFF;
    padding: 15px 30px;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
}

.btn:hover {
    background-color: #333333;
}

section {
    padding: 60px 20px;
    text-align: center;
}

.features {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
}

.feature {
    width: 30%;
    margin: 20px;
    padding: 20px;
    border: 1px solid #CCCCCC;
    border-radius: 5px;
}

footer {
    background-color: #000000;
    color: #FFFFFF;
    text-align: center;
    padding: 20px;
}

@media (max-width: 768px) {
    .features {
        flex-direction: column;
        align-items: center;
        /* Center features pada mobile */
    }

    .feature {
        width: 100%;
        max-width: 400px;
        /* Batasi lebar untuk center */
    }

    header {
        flex-direction: row;
        /* Pastikan logo dan hamburger sejajar */
        justify-content: space-between;
    }

    .logo {
        margin-left: 0;
        margin-bottom: 0;
    }

    nav {
        display: none;
        /* Sembunyikan nav desktop pada mobile */
    }

    .hamburger {
        display: flex;
    }

    .sidebar {
        display: block;
        /* Tampilkan sidebar pada mobile */
    }
}