/* Root variabel tema */
:root {
    --primary-color: #4CAF50; /* Warna utama */
    --secondary-color: #2196F3; /* Warna sekunder */
    --text-color: #333; /* Warna teks utama */
    --bg-light: #f7f7f7; /* Warna latar terang */
    --bg-dark: #333; /* Warna latar gelap */
}

/* Reset dasar */
body {
    font-family: Arial, sans-serif;
    background-color: var(--bg-light);
    color: var(--text-color);
    display: flex;
    height: 100vh;
    margin: 0;
}

/* Layout utama */
.layout {
    display: flex;
    width: 100%;
    height: 100%;
}

/* Sidebar */
.sidebar {
    width: 250px;
    min-width: 250px;
    max-width: 250px;
    background: var(--bg-dark);
    color: white;
    padding: 15px;
    box-shadow: 2px 0 5px rgba(0, 0, 0, 0.1);
    flex-shrink: 0;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    scrollbar-gutter: stable;
}

.sidebar a {
    display: block;
    color: #fff;
    padding: 10px 15px;
    text-decoration: none;
    margin-bottom: 10px;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.sidebar a:hover,
.sidebar a:focus {
    background-color: var(--secondary-color);
    outline: none;
}

/* Konten Utama */
.content {
    padding: 20px;
    background-color: #fff;
    overflow-y: auto;
    flex-grow: 1;
    border-radius: 8px;
    box-shadow: inset 0 0 5px rgba(0, 0, 0, 0.1);
}

/* Heading utama */
.content h1 {
    font-size: 24px;
    color: var(--primary-color);
    margin-bottom: 20px;
}

/* Teks dalam konten */
.content p {
    font-size: 16px;
    line-height: 1.6;
}

/* Responsif untuk layar kecil */
@media screen and (max-width: 768px) {
    .layout {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        box-shadow: none;
        margin-bottom: 15px;
    }

    .content {
        margin-left: 0;
        padding: 15px;
    }
}

/* Aturan cetak */
@media print {
    .sidebar {
        display: block; /* Sidebar tetap terlihat saat cetak */
    }

    .content {
        margin-left: 250px; /* Atur margin agar tidak bertumpuk */
    }

    button,
    a[href] {
        display: none; /* Sembunyikan tombol saat cetak */
    }
}

/* Elemen Tagihan */
.tagihan-container {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    gap: 10px;
}

.total-tagihan,
.jumlah-invoice {
    flex: 1;
    padding: 20px;
    text-align: center;
    border-radius: 5px;
    color: white;
}

.total-tagihan {
    background: var(--primary-color);
}

.jumlah-invoice {
    background: var(--secondary-color);
}

/* Formulir */
form {
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.form-group {
    margin-bottom: 20px;
}

input[type="text"], input[type="datetime-local"], input[type="number"], select {
    width: 100%;
    padding: 10px;
    border: 1px solid #ccc;
    border-radius: 5px;
    box-sizing: border-box;
}

button {
    background: linear-gradient(45deg, var(--primary-color), #45a049);
    color: white;
    padding: 10px 20px;
    border: none;
    cursor: pointer;
    border-radius: 5px;
    transition: background 0.3s ease;
}

button:hover {
    background: linear-gradient(45deg, #45a049, var(--primary-color));
}

.success {
    color: green;
    margin-bottom: 20px;
}

.checkbox-group {
    display: flex;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.checkbox-group label {
    flex: 1 1 50%;
    display: flex;
    align-items: center;
    margin-bottom: 5px;
}

.checkbox-group input {
    margin-right: 10px;
}

/* Custom Item */
.custom-item {
    display: flex;
    gap: 10px;
    margin-bottom: 5px;
}

.custom-item input {
    flex: 1;
}

.custom-item button {
    background: red;
    color: white;
    border: none;
    padding: 5px;
    cursor: pointer;
}