:root {
    --primary-color-start: #8e44ad;
    --primary-color-end: #9b59b6;
    --primary-gradient: linear-gradient(90deg, var(--primary-color-start), var(--primary-color-end));
    --text-color: #e0e0e0;
    --text-color-muted: #888;
    --background-color: #121212;
    --surface-color: #1e1e1e;
    --border-color: #2c2c2c;
}

body {
    font-family: 'Poppins', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--background-color);
    color: var(--text-color);
    line-height: 1.6;
}

a {
    color: var(--primary-color-end);
    text-decoration: none;
    transition: color 0.2s ease;
}

a:hover {
    color: #c39bd3;
}

.page-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

main .container {
    width: 100%;
}

/* === Header & Navigation === */
header {
    padding: 20px 0;
    border-bottom: 1px solid var(--border-color);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: #fff;
    text-decoration: none;
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 40px;
    margin: 0;
    padding: 0;
}

.nav-links a {
    color: var(--text-color);
    font-weight: 600;
    position: relative;
    padding-bottom: 5px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    background-color: var(--primary-color-end);
    transition: width 0.3s ease;
}

.nav-links a:hover::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-actions a {
    color: var(--text-color);
    position: relative;
}

.cart-icon .cart-count {
    position: absolute;
    top: -8px;
    right: -8px;
    background: var(--primary-gradient);
    color: white;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 0.7rem;
    font-weight: bold;
}

.user-auth-links {
    display: flex;
    align-items: center;
    gap: 10px;
}

.btn-secondary-outline {
    padding: 8px 18px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9em;
    border: 2px solid var(--border-color);
    transition: all 0.2s ease;
}

.btn-secondary-outline:hover {
    background-color: var(--surface-color);
}

.btn-primary-outline {
    padding: 8px 18px;
    border-radius: 20px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9em;
    background: var(--primary-gradient);
    color: white;
    border: none;
    transition: all 0.2s ease;
}

.btn-primary-outline:hover {
    filter: brightness(1.2);
}

.search-form {
    margin: 0;
}

.search-box {
    display: flex;
    align-items: center;
    border: 1px solid var(--border-color);
    border-radius: 50px;
    padding-left: 15px;
    background-color: var(--surface-color);
    transition: all 0.2s;
}

.search-box:focus-within {
    box-shadow: 0 0 0 2px rgba(142, 68, 173, 0.4);
    border-color: var(--primary-color-start);
}

.search-input {
    border: none;
    outline: none;
    background: transparent;
    padding: 8px 0;
    font-size: 0.9em;
    width: 180px;
    color: var(--text-color);
}

.search-button {
    background: none;
    border: none;
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color-muted);
    transition: color 0.2s ease;
}

.search-button svg {
    display: block;
}

.search-button:hover {
    color: var(--primary-color-end);
}

/* === Tombol Umum === */
.btn {
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--primary-gradient);
    color: white;
    padding: 12px 30px;
}

.btn-primary:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
}

/* === Hero Section, Section Titles, Product Grids, dll. === */
.section-title {
    font-size: 2rem;
    font-weight: 700;
    margin: 60px 0 40px 0;
    padding-bottom: 10px;
    border-bottom: 2px solid var(--primary-color-start);
}

.hero-section {
    display: flex;
    align-items: center;
    padding: 60px 0;
}

.hero-image {
    flex: 1;
    text-align: right;
}

.hero-image img {
    max-width: 100%;
    max-height: 450px;
    object-fit: contain;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px 30px;
}

.grid-item {
    text-align: center;
    display: flex;
    flex-direction: column;
}

.product-card-link {
    display: block;
    text-decoration: none;
}

.product-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 10px;
    transition: all 0.3s ease;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(142, 68, 173, 0.3);
}

.product-card img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.product-info-bottom {
    padding-top: 15px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.product-info-bottom h3 {
    margin: 0 0 5px 0;
    font-size: 1.1rem;
    flex-grow: 1;
}

.product-info-bottom h3 a {
    color: var(--text-color);
    transition: color 0.2s ease;
}

.product-info-bottom h3 a:hover {
    color: var(--primary-color-end);
}

.product-info-bottom .price {
    font-weight: 600;
    color: var(--primary-color-end);
    margin-bottom: 15px;
}

.add-to-cart-btn {
    display: block;
    width: 100%;
    box-sizing: border-box;
    background: var(--primary-gradient);
    color: white;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: filter 0.2s;
}

.add-to-cart-btn:hover {
    filter: brightness(1.2);
}

/* Penjelasan Ontologi */
.ontology-explanation-section {
    padding: 60px 0;
}

.ontology-explanation {
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
    background-color: var(--surface-color);
    border-radius: 20px;
}

.explanation-list {
    list-style: none;
    padding: 0;
    margin-top: 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    text-align: center;
}

.explanation-list li {
    padding: 20px;
    background-color: var(--background-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.explanation-list li strong {
    display: block;
    font-size: 1.1em;
    color: var(--text-color);
    margin-bottom: 8px;
}

.keywords-container {
    margin-top: 10px;
}

.keyword-badge {
    display: inline-block;
    background-color: var(--border-color);
    color: var(--text-color);
    padding: 4px 12px;
    border-radius: 15px;
    font-size: 0.9em;
    margin: 3px;
}

/* === PERBAIKAN: Styling Halaman Keranjang Belanja === */
.cart-container {
    max-width: 900px;
    margin: 40px auto;
}

.cart-table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 30px;
    font-size: 1rem;
}

.cart-table th,
.cart-table td {
    border-bottom: 1px solid var(--border-color);
    padding: 15px;
    text-align: center;
    vertical-align: middle;
}

.cart-table th {
    font-weight: 600;
    color: var(--text-color-muted);
    text-transform: uppercase;
    font-size: 0.9em;
}

.cart-table td:nth-child(2) {
    text-align: left;
}

.cart-item-image {
    width: 60px;
    height: 80px;
    object-fit: cover;
    border-radius: 8px;
    background-color: var(--surface-color);
}

.cart-item-info strong {
    font-weight: 600;
    display: block;
    color: #fff;
}

.cart-item-info small {
    font-weight: 400;
    color: var(--text-color-muted);
    font-size: 0.9em;
}

.quantity-control {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
}

.quantity-text {
    font-weight: 600;
    font-size: 1.1em;
    min-width: 20px;
    text-align: center;
}

.quantity-form {
    margin: 0;
    padding: 0;
    border: none;
    background: none;
}

.quantity-btn {
    width: 35px;
    height: 35px;
    padding: 0;
    font-size: 1.2em;
    line-height: 35px;
    text-align: center;
    border: 1px solid var(--border-color);
    background-color: var(--surface-color);
    color: var(--text-color);
    border-radius: 50%;
    cursor: pointer;
    transition: background-color 0.2s, color 0.2s;
}

.quantity-btn:hover {
    background-color: var(--primary-color-end);
    color: white;
    border-color: var(--primary-color-end);
}

.remove-btn {
    background: none;
    border: none;
    color: var(--primary-color-start);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    font-size: 0.9em;
}

.remove-btn:hover {
    text-decoration: underline;
}

.cart-summary {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    margin-top: 30px;
    border-top: 1px solid var(--border-color);
    padding-top: 30px;
}

.cart-summary h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
    margin-right: 20px;
    color: #fff;
}

.cart-summary h3 span {
    color: var(--primary-color-end);
}

.checkout-btn {
    width: auto;
    font-size: 1.1em;
    padding: 12px 30px;
}

/* Halaman Detail Game */
.product-detail-container {
    display: flex;
    gap: 40px;
    align-items: flex-start;
    margin: 40px 0;
}

.product-detail-image {
    flex: 1;
    position: sticky;
    top: 40px;
}

.product-detail-image img {
    width: 100%;
    border-radius: 12px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
}

.product-detail-info {
    flex: 1;
}

.product-detail-info h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 10px;
    line-height: 1.2;
    color: #fff;
}

.product-detail-info .price {
    font-size: 1.8rem;
    color: var(--primary-color-end);
    font-weight: 600;
    margin-bottom: 20px;
}

.product-specs {
    margin-top: 30px;
    margin-bottom: 30px;
    border-top: 1px solid var(--border-color);
    padding-top: 20px;
}

.product-specs h4 {
    margin-top: 0;
    margin-bottom: 15px;
    font-size: 1.2rem;
    color: var(--text-color-muted);
}

.product-specs ul {
    list-style: none;
    padding: 0;
}

.product-specs li {
    padding: 8px 0;
    display: flex;
    justify-content: space-between;
    border-bottom: 1px solid #222;
}

.product-specs li:last-child {
    border-bottom: none;
}

.product-specs li span {
    color: var(--text-color);
}

.product-detail-info .add-to-cart-btn {
    width: auto;
    padding: 14px 40px;
    font-size: 1.1em;
    border-radius: 50px;
    background: var(--primary-gradient);
}

.product-detail-info .add-to-cart-btn:hover {
    filter: brightness(1.2);
    transform: translateY(-2px);
}

.back-link {
    display: inline-block;
    margin-top: 20px;
}

.back-link a {
    color: var(--text-color-muted);
    font-weight: 600;
}

/* Styling Halaman Login & Register */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 60px 20px;
}

.auth-form-box {
    width: 100%;
    max-width: 480px;
    padding: 40px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.auth-form-box h2 {
    text-align: center;
    font-size: 2rem;
    font-weight: 700;
    margin-top: 0;
    margin-bottom: 10px;
    color: #fff;
}

.auth-form-box p {
    text-align: center;
    color: var(--text-color-muted);
    margin-bottom: 30px;
}

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

.form-label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    font-size: 0.9em;
    color: var(--text-color-muted);
}

.form-input {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 12px 15px;
    border: 1px solid #333;
    border-radius: 8px;
    font-size: 1rem;
    color: var(--text-color);
    background-color: var(--background-color);
    transition: border-color 0.2s, box-shadow 0.2s;
}

select.form-input {
    appearance: none;
    -webkit-appearance: none;
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-color-start);
    box-shadow: 0 0 0 3px rgba(142, 68, 173, 0.3);
}

.form-error {
    color: #e74c3c;
    font-size: 0.85em;
    margin-top: 5px;
    display: block;
}

.btn-full-width {
    width: 100%;
    padding: 14px;
    font-size: 1.1em;
    margin-top: 10px;
    border-radius: 8px;
}

.form-divider {
    border: none;
    border-top: 1px solid var(--border-color);
    margin: 30px 0;
}

.form-subtitle {
    font-size: 1.2rem;
    margin-bottom: 20px;
    text-align: center;
    font-weight: 600;
    color: var(--text-color-muted);
}

.auth-switch-link {
    text-align: center;
    margin-top: 25px;
}

.auth-switch-link a {
    font-weight: 600;
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 20px;
    margin-top: 60px;
    background-color: var(--surface-color);
    color: var(--text-color-muted);
}

.search-container {
    position: relative;
}

.search-suggestions-box {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    width: 300px;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.2);
    z-index: 1000;
    margin-top: 5px;
}

.search-suggestions-box ul {
    list-style: none;
    margin: 0;
    padding: 8px 0;
}

.search-suggestions-box li {
    padding: 10px 15px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.search-suggestions-box li:hover {
    background-color: var(--primary-color-start);
}

.suggestion-type {
    font-size: 0.8em;
    color: var(--text-color-muted);
    background-color: var(--border-color);
    padding: 2px 6px;
    border-radius: 4px;
}

.suggestion-value {
    font-weight: 600;
    color: var(--text-color);
}

/* === PENAMBAHAN: Style untuk Halaman Riwayat Transaksi === */
.history-container {
    max-width: 800px;
    margin: 40px auto;
}

.purchase-history-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.purchase-item {
    display: flex;
    gap: 20px;
    align-items: center;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    padding: 20px;
    border-radius: 12px;
}

.purchase-item-image img {
    width: 100px;
    height: 133px;
    object-fit: cover;
    border-radius: 8px;
}

.purchase-item-details {
    flex-grow: 1;
}

.purchase-date {
    font-size: 0.8em;
    color: var(--text-color-muted);
}

.purchase-product-name {
    margin: 5px 0;
    font-size: 1.2em;
    font-weight: 600;
    color: #fff;
}

.purchase-meta {
    margin: 2px 0;
    font-size: 0.9em;
}

.purchase-item-action .btn-secondary-outline {
    padding: 8px 18px;
    font-size: 0.9em;
}

.table-responsive {
    width: 100%;
    overflow-x: auto;
    /* Memungkinkan scroll horizontal di layar kecil */
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 40px;
    background-color: var(--surface-color);
}

.raw-data-table {
    width: 100%;
    border-collapse: collapse;
}

.raw-data-table th,
.raw-data-table td {
    padding: 12px 15px;
    border-bottom: 1px solid var(--border-color);
    text-align: left;
    white-space: nowrap;
    /* Mencegah teks turun baris */
}

.raw-data-table thead th {
    background-color: #2a2a2a;
    font-weight: 600;
    color: var(--text-color-muted);
}

.raw-data-table tbody tr:hover {
    background-color: #252525;
}