/* ====== CSS VARIABLES DEFAULT (Tema 1: Light & Fresh Green) ====== */
:root {
    --primary-color: #2E7D32;          /* Hijau tua untuk tombol & header */
    --secondary-color: #90EE91;        /* Hijau terang (accent) */
    --accent-color: #CAEEC2;           /* Hijau pastel (pendukung) */
    --bg-color: #F5F5F5;               /* Background utama */
    --surface-color: #FFFFFF;          /* Kartu / permukaan */
    --text-color: #1B1B1B;             /* Teks utama */
    --text-muted: #6B6B6B;             /* Teks sekunder */
    --border-color: #D9D9D9;           /* Border */
    --border-radius: 8px;
    --font-family: 'Arial', sans-serif;
}

/* Tema 1 (jika class .theme-midnight digunakan) */
.theme-midnight {
    --primary-color: #2E7D32;
    --secondary-color: #90EE91;
    --accent-color: #CAEEC2;
    --bg-color: #F5F5F5;
    --surface-color: #FFFFFF;
    --text-color: #1B1B1B;
    --text-muted: #6B6B6B;
    --border-color: #D9D9D9;
}

/* Tema 2: Deep Teal & Soft Sage */
.theme-deep-teal {
    --primary-color: #152D35;
    --secondary-color: #D4ECDD;
    --accent-color: #D4ECDD;
    --bg-color: #E5F0E9;
    --surface-color: #FFFFFF;
    --text-color: #1A2A32;
    --text-muted: #5F6F6A;
    --border-color: #C2D6CC;
}

/* Tema 3: Ultra Purple & Seafoam */
.theme-ultra-purple {
    --primary-color: #6D28D9;
    --secondary-color: #98E8DE;
    --accent-color: #98E8DE;
    --bg-color: #F3F0FF;
    --surface-color: #FFFFFF;
    --text-color: #1E1B2E;
    --text-muted: #6B6B7B;
    --border-color: #D6C6F0;
}

/* Tema 4: Cosmic Navy & Pastel Violet */
.theme-cosmic-navy {
    --primary-color: #0C134F;
    --secondary-color: #D4ADFC;
    --accent-color: #D4ADFC;
    --bg-color: #E8E1F5;
    --surface-color: #FFFFFF;
    --text-color: #1C1A2E;
    --text-muted: #6A5F8A;
    --border-color: #B9A8D8;
}

/* ====== GAYA GLOBAL ====== */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-family);
    line-height: 1.6;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Container full width (tanpa max-width) */
.container {
    width: 100%;
    padding: 20px;
}

.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    margin-bottom: 20px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-secondary {
    background-color: var(--secondary-color);
    color: var(--text-color);
    padding: 10px 15px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: background-color 0.3s;
    text-decoration: none;
    display: inline-block;
}

.btn-danger {
    background-color: #dc3545;
    color: #fff;
    padding: 10px 15px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

label {
    display: block;
    margin-bottom: 5px;
    color: var(--text-muted);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
input[type="date"],
select,
textarea {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--surface-color);
    color: var(--text-color);
    font-family: var(--font-family);
}

input[type="color"] {
    width: 50px;
    height: 50px;
    border: none;
    border-radius: var(--border-radius);
    cursor: pointer;
    padding: 0;
    background: none;
}

input[type="radio"] {
    margin-right: 5px;
}

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

/* ====== TABEL ====== */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

.table th,
.table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.table th {
    background-color: var(--primary-color);
    color: #fff;
    font-weight: bold;
}

.table tr:hover {
    background-color: var(--bg-color);
}

/* ====== ALERT ====== */
.alert {
    padding: 15px;
    margin-bottom: 20px;
    border-radius: var(--border-radius);
    border: 1px solid transparent;
}

.alert-success {
    background-color: #d4edda;
    color: #155724;
    border-color: #c3e6cb;
}

.alert-danger {
    background-color: #f8d7da;
    color: #721c24;
    border-color: #f5c6cb;
}

.alert-info {
    background-color: #d1ecf1;
    color: #0c5460;
    border-color: #bee5eb;
}

/* ====== NAVIGASI ====== */
.navbar {
    background-color: var(--surface-color);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 20px;
    margin-bottom: 20px;
}

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

.navbar-brand {
    font-size: 1.2em;
    font-weight: bold;
    color: var(--primary-color);
    text-decoration: none;
}

.navbar-menu {
    display: flex;
    gap: 15px;
    align-items: center;
    flex-wrap: wrap;
}

.navbar-menu a {
    color: var(--text-color);
    text-decoration: none;
    padding: 5px 10px;
    border-radius: var(--border-radius);
    transition: background-color 0.3s;
}

.navbar-menu a:hover {
    background-color: var(--primary-color);
    color: #fff;
}

/* ====== GRID SYSTEM SEDERHANA ====== */
.row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -15px;
}

.col-md-4 {
    width: 33.3333%;
    padding: 0 15px;
    box-sizing: border-box;
    margin-bottom: 20px;
}

/* ====== TEMA PREVIEW ====== */
.theme-option {
    display: flex;
    align-items: center;
    margin-bottom: 10px;
}

.theme-option .theme-preview {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    margin-right: 10px;
    display: inline-block;
}

/* ====== RESPONSIVE ====== */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .navbar .container {
        flex-direction: column;
        align-items: flex-start;
    }

    .navbar-menu {
        flex-direction: column;
        width: 100%;
        margin-top: 10px;
    }

    .navbar-menu a {
        padding: 8px 0;
        border-bottom: 1px solid var(--border-color);
    }

    .col-md-4 {
        width: 100%;
    }
}