/* VARIABEL WARNA (Tema: Nuansa Ungu-Pink) */
:root {
    /* Palet Warna Baru Anda */
    --primary-color: #9B5DE0;    /* Ungu Utama (Tombol, Header) */
    --primary-dark: #4E56C0;     /* Ungu Gelap (Hover, Sidebar) */
    --secondary-color: #D78FEE;  /* Pink Aksen (Border, Highlight) */
    --accent-light: #FDCFFA;     /* Pink Pucat (Background Alert/Badge) */
    
    /* Warna Dasar (Netral) */
    --bg-color: #F8F5FA;         /* Background Halaman (Agak ungu sangat muda biar bersih) */
    --text-color: #1F2937;       /* Teks Gelap (Tetap abu tua agar mudah dibaca) */
    --white: #FFFFFF;
    
    /* Status Colors (Tetap standar agar user paham artinya) */
    --danger: #EF4444;           /* Merah untuk Error */
    --success: #10B981;          /* Hijau untuk Sukses */
    --warning: #F59E0B;          /* Kuning untuk Peringatan */
}

/* RESET & UMUM */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

/* UTILITY CLASSES */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.card {
    background: var(--white);
    border-radius: 12px; /* Lebih membulat agar lebih manis */
    box-shadow: 0 4px 6px rgba(155, 93, 224, 0.1); /* Shadow ungu tipis */
    padding: 25px;
    margin-bottom: 25px;
    border: 1px solid rgba(215, 143, 238, 0.2); /* Border pink tipis */
}

.btn {
    display: inline-block;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark)); /* Gradient Ungu */
    color: var(--white);
    box-shadow: 0 4px 6px rgba(78, 86, 192, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--primary-color));
    transform: translateY(-2px);
    box-shadow: 0 6px 8px rgba(78, 86, 192, 0.4);
}

.btn-secondary {
    background-color: var(--white);
    border: 1px solid #ddd;
    color: var(--text-color);
}

.btn-secondary:hover {
    background-color: #f3f4f6;
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.alert {
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
}
.alert-success { background-color: #D1FAE5; color: #065F46; border-left: 5px solid #10B981; }
.alert-danger { background-color: #FEE2E2; color: #991B1B; border-left: 5px solid #EF4444; }
.alert-warning { background-color: #FEF3C7; color: #92400E; border-left: 5px solid #F59E0B; }
.alert-info { background-color: #E0E7FF; color: #3730A3; border-left: 5px solid #6366F1; }

/* HEADER & NAVBAR */
.main-header {
    background: linear-gradient(to right, var(--primary-dark), var(--primary-color));
    color: var(--white);
    padding: 1rem 0;
    box-shadow: 0 4px 10px rgba(155, 93, 224, 0.2);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 { font-size: 1.5rem; font-weight: 700; letter-spacing: 0.5px; }
.logo span { font-size: 0.8rem; opacity: 0.9; display: block; font-weight: normal; }

.nav-menu a {
    color: var(--white);
    margin-left: 20px;
    font-weight: 500;
    transition: opacity 0.2s;
}

.nav-menu a:hover { opacity: 0.8; }

/* FORM STYLES */
.form-group { margin-bottom: 20px; }
.form-label { display: block; margin-bottom: 8px; font-weight: 600; color: #4B5563; }
.form-control {
    width: 100%;
    padding: 12px;
    border: 1px solid #E5E7EB;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s;
}
.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(155, 93, 224, 0.2);
}

/* DASHBOARD GRID */
.dashboard-grid {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 30px;
    margin-top: 30px;
}

.sidebar {
    background: var(--white);
    padding: 25px;
    border-radius: 12px;
    height: fit-content;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    border-top: 5px solid var(--primary-color);
}

.sidebar nav a {
    display: block;
    padding: 12px 15px;
    color: #4B5563;
    border-radius: 8px;
    margin-bottom: 5px;
    font-weight: 500;
    transition: all 0.2s;
}

.sidebar nav a:hover, .sidebar nav a.active {
    background-color: var(--accent-light); /* Pink Pucat */
    color: var(--primary-dark); /* Ungu Gelap */
    font-weight: bold;
}

/* Statistik Dashboard */
.stat-card {
    background: white;
    padding: 25px;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    text-align: center;
    border-bottom: 4px solid var(--secondary-color); /* Pink border bawah */
    transition: transform 0.2s;
}
.stat-card:hover { transform: translateY(-5px); }
.stat-number { font-size: 2.5rem; font-weight: 800; color: var(--primary-color); margin-bottom: 5px; }

/* TABLE STYLES */
.table-responsive {
    overflow-x: auto;
    border-radius: 10px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}
table {
    width: 100%;
    border-collapse: collapse;
    background: white;
}
th {
    background-color: var(--primary-color); /* Ungu */
    color: white;
    padding: 15px;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}
td {
    padding: 15px;
    border-bottom: 1px solid #f3f4f6;
    color: #374151;
}
tr:hover { background-color: #FDF4FF; } /* Hover baris jadi pink sangat muda */

/* BADGES */
.badge { padding: 4px 10px; border-radius: 20px; font-size: 0.75rem; font-weight: bold; display: inline-block; }
.badge-success { background: #D1FAE5; color: #065F46; }
.badge-warning { background: #FEF3C7; color: #92400E; }
.badge-purple { background: var(--accent-light); color: var(--primary-dark); border: 1px solid var(--secondary-color); }
.badge-blue { background: #DBEAFE; color: #1E40AF; }

/* RESPONSIVE */
@media (max-width: 768px) {
    .dashboard-grid { grid-template-columns: 1fr; }
    .sidebar { margin-bottom: 20px; }
    .nav-container { flex-direction: column; text-align: center; }
    .nav-menu { margin-top: 15px; }
    .nav-menu a { margin: 0 10px; }
}