/* File: /style.css (Revisi Final - Kode Bersih) */

:root {
    --warna-utama: #2c3e50;
    --warna-sekunder: #34495e;
    --warna-aksen: #1abc9c;
    --warna-aksen-hover: #16a085;
    --warna-teks: #333;
    --warna-teks-putih: #ecf0f1;
    --warna-latar: #f0f2f5;
    --warna-container: #ffffff;
    --warna-border: #dfe4ea;
    --warna-sukses: #155724;
    --warna-sukses-latar: #d4edda;
    --warna-bahaya: #721c24;
    --warna-bahaya-latar: #f8d7da;
    --warna-peringatan: #e67e22;
    --radius-border: 8px;
    --radius-border-kecil: 4px;
    --bayangan-halus: 0 5px 15px rgba(0, 0, 0, 0.07);
}

*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    background-color: var(--warna-latar);
    color: var(--warna-teks);
    line-height: 1.6;
}

.container {
    width: 95%;
    max-width: 1400px;
    margin: 20px auto;
    background-color: var(--warna-container);
    padding: 25px;
    box-shadow: var(--bayangan-halus);
    border-radius: var(--radius-border);
}

.header {
    background-color: var(--warna-utama);
    color: var(--warna-teks-putih);
    padding: 20px 30px;
    border-radius: var(--radius-border) var(--radius-border) 0 0;
}

.header h1 {
    margin: 0;
    font-size: 1.6em;
}

.nav {
    background-color: var(--warna-sekunder);
    padding: 0 30px;
    border-radius: 0 0 var(--radius-border) var(--radius-border);
    margin-bottom: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: row;
}

.nav-menu li {
    margin-right: 5px;
}

.nav-menu li a {
    text-decoration: none;
    color: var(--warna-teks-putih);
    padding: 15px 17px;
    border-radius: var(--radius-border-kecil);
    transition: background-color 0.3s ease;
    display: block;
    font-weight: 500;
    font-size: 0.95em;
}

.nav-menu li a:hover,
.nav-menu li a.active {
    background-color: var(--warna-aksen);
    color: #fff;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 10px;
}
.nav-toggle .burger {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--warna-teks-putih);
    margin: 5px 0;
    transition: all 0.3s ease-in-out;
}

.content {
    padding: 0;
}

.content h2 {
    border-bottom: 2px solid var(--warna-aksen);
    padding-bottom: 10px;
    color: var(--warna-utama);
}

.table-responsive-wrapper {
    width: 100%;
    overflow-x: auto;
    border: 1px solid var(--warna-border);
    border-radius: var(--radius-border-kecil);
    margin-top: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 0;
    font-size: 0.95em;
}

th, td {
    border: 1px solid var(--warna-border);
    padding: 12px 15px;
    text-align: left;
    vertical-align: top;
}

th {
    background-color: #f5f7fa;
    color: var(--warna-sekunder);
    font-weight: 600;
}

tr:nth-child(even) {
    background-color: #f9fbfd;
}

tr:hover {
    background-color: #f1f3f5;
}

.table-responsive-wrapper table {
    border: none;
    margin-top: 0;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 600;
    color: #555;
}

.form-group input[type="text"],
.form-group input[type="number"],
.form-group input[type="date"],
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid #ccc;
    border-radius: var(--radius-border-kecil);
    box-sizing: border-box; 
    background-color: #fff;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="number"]:focus,
.form-group input[type="date"]:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--warna-aksen);
    box-shadow: 0 0 0 3px rgba(26, 188, 156, 0.2);
}

.form-container {
    max-width: 600px;
    background: #fdfdfd;
    padding: 25px;
    border-radius: var(--radius-border-kecil);
    border: 1px solid #eee;
    margin-bottom: 20px;
}

.btn {
    padding: 12px 18px;
    border: none;
    border-radius: var(--radius-border-kecil);
    cursor: pointer;
    text-decoration: none;
    font-size: 0.95em;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: var(--warna-aksen);
    color: white;
}
.btn-primary:hover {
    background-color: var(--warna-aksen-hover);
    transform: translateY(-2px);
}

.btn-warning {
    background-color: var(--warna-peringatan);
    color: white;
    margin-right: 5px;
}
.btn-warning:hover {
    background-color: #d35400;
    transform: translateY(-2px);
}

.btn-danger {
    background-color: #e74c3c;
    color: white;
}
.btn-danger:hover {
    background-color: #c0392b;
    transform: translateY(-2px);
}

.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: var(--radius-border-kecil);
    border: 1px solid transparent;
}
.alert-success {
    background-color: var(--warna-sukses-latar);
    color: var(--warna-sukses);
    border-color: var(--warna-sukses);
}
.alert-danger {
    background-color: var(--warna-bahaya-latar);
    color: var(--warna-bahaya);
    border-color: var(--warna-bahaya);
}

.dashboard-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    margin: 25px 0;
}

.stat-card {
    background: var(--warna-container);
    border: 1px solid var(--warna-border);
    padding: 25px;
    border-radius: var(--radius-border);
    text-align: center;
    flex-grow: 1;
    flex-basis: 280px;
    box-sizing: border-box;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.03);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.07);
}
.stat-card h4 {
    margin: 0 0 10px 0;
    color: #555;
    font-weight: 500;
    font-size: 1em;
}
.stat-card .stat-number {
    margin: 0 0 5px 0;
    font-size: 2.2em;
    font-weight: 700;
    color: var(--warna-utama);
}
.stat-card .accent-green { color: var(--warna-aksen); }
.stat-card .accent-red { color: #e74c3c; }
.stat-card span { color: #777; font-size: 0.9em; }

.dashboard-divider {
    margin: 40px 0 30px 0;
    border: 0;
    border-top: 1px solid #eee;
}

.dashboard-reports {
    margin-top: 15px;
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}
.dashboard-reports .btn {
    flex-grow: 1;
    flex-basis: 250px;
    text-align: center;
    padding: 12px 15px;
    font-size: 1em;
}

@media (max-width: 768px) {
    
    .nav-toggle {
        display: block;
    }
    
    .nav-menu {
        display: none;
        flex-direction: column;
        width: 100%;
        position: absolute;
        top: 60px;
        left: 0;
        background-color: var(--warna-sekunder);
        z-index: 100;
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-menu li {
        margin: 0;
    }
    
    .nav-menu li a {
        padding: 15px 30px;
        border-bottom: 1px solid #4a627a;
    }
    
    .nav {
        flex-wrap: wrap;
        padding: 5px 20px;
    }

    .header h1 {
        font-size: 1.3em;
    }
    
    .container {
        width: 100%;
        margin: 0;
        padding: 15px;
        border-radius: 0;
        box-shadow: none;
    }
    
    .form-container {
        max-width: 100%;
        padding: 15px;
    }
    
    .content h2 {
        font-size: 1.4em;
    }

    .btn {
        width: 100%;
        box-sizing: border-box;
        text-align: center;
        margin-bottom: 10px;
    }
    .btn-warning, .btn-danger {
        margin-right: 0;
    }
    
    .dashboard-stats {
        flex-direction: column;
        gap: 15px;
    }

    .stat-card {
        width: 100%;
        flex-basis: auto;
    }

    .dashboard-reports {
        flex-direction: column;
        gap: 10px;
    }

    .dashboard-reports .btn {
        width: 100%;
        box-sizing: border-box;
    }
}