* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html, body {
    height: 100%;
    width: 100%;
}

body {
    background-color: #f5f5f5;
    color: #333333;
    font-family: Verdana, Geneva, sans-serif;
    font-size: 12px;
    line-height: 1.5;
    overflow-x: hidden;
}

/* Header */
.header-top {
    background-color: #ffffff;
    border-bottom: 1px solid #cccccc;
    padding: 20px 0;
    margin-bottom: 20px;
}

.header-content {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
}

.site-title {
    font-size: 28px;
    font-weight: bold;
    margin-bottom: 5px;
    letter-spacing: 2px;
}

.site-tagline {
    font-size: 11px;
    color: #666666;
    font-style: italic;
}

/* Main Wrapper */
.wrapper {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 20px;
    display: flex;
    gap: 30px;
    margin-bottom: 40px;
}

/* Main Content */
.main-content {
    flex: 1;
    min-width: 0;
}

.section {
    background-color: #ffffff;
    border: 1px solid #dddddd;
    padding: 20px;
    margin-bottom: 30px;
    display: none;
}

.section.active {
    display: block;
}

.section h2 {
    font-size: 18px;
    font-weight: bold;
    margin-bottom: 5px;
    text-transform: lowercase;
    border-bottom: 1px solid #eeeeee;
    padding-bottom: 10px;
}

.section-meta {
    font-size: 11px;
    color: #999999;
    margin-bottom: 15px;
}

.divider {
    height: 1px;
    background-color: #eeeeee;
    margin: 15px 0;
}

/* Products */
.products-list {
    margin: 20px 0;
}

.content-grid {
    margin: 20px 0;
}

.product-item,
.content-item {
    padding: 15px 0;
    border-bottom: 1px solid #f0f0f0;
}

.product-item:last-child,
.content-item:last-child {
    border-bottom: none;
}

.product-images {
    display: flex;
    gap: 15px;
    margin: 12px 0;
    flex-wrap: wrap;
}

.product-image {
    width: calc(50% - 8px);
    max-width: 200px;
    height: auto;
    border: 1px solid #e0e0e0;
    background-color: #fafafa;
    object-fit: contain;
}

@media (max-width: 768px) {
    .product-image {
        width: 100%;
        max-width: 100%;
    }
}

/*  */
.event-poster {
    margin: 12px 0;
}

.event-image {
    width: 100%;
    height: auto;
    border: 1px solid #e0e0e0;
    background-color: #fafafa;
    object-fit: contain;
}

.event-image-poster {
    max-width: 420px;
}

.event-info-section {
    margin-top: 10px;
}

.event-info-grid {
    display: flex;
    flex-direction: column;
    gap: 20px;
    margin-top: 15px;
}

.event-image-info {
    max-width: 100%;
}

@media (max-width: 768px) {
    .event-image-poster {
        max-width: 100%;
    }
}

.product-item h3,
.item-title {
    font-size: 13px;
    font-weight: bold;
    margin-bottom: 5px;
    text-transform: none;
}

.product-desc,
.item-description {
    font-size: 11px;
    color: #666666;
    margin-bottom: 8px;
}

.product-price,
.item-meta {
    font-size: 12px;
    font-weight: bold;
    color: #000000;
}

.item-serial {
    font-size: 10px;
    color: #666666;
    font-style: italic;
    margin: 5px 0 0 0;
    letter-spacing: 1px;
}

.hidden {
    display: none !important;
}

#selectedSerial {
    background-color: #f9f9f9;
    border: 1px solid #eeeeee;
    padding: 10px;
    margin: 15px 0;
    border-radius: 3px;
}

.serial-display {
    font-size: 12px;
    color: #333333;
    margin: 0;
}

.serial-display strong {
    color: #000000;
    font-weight: bold;
    font-family: monospace;
    letter-spacing: 2px;
}

/* Form */
.form-title {
    font-size: 14px;
    font-weight: bold;
    margin: 20px 0 15px 0;
    text-transform: lowercase;
}

.subsection-title {
    font-size: 13px;
    font-weight: bold;
    margin: 20px 0 15px 0;
    text-transform: lowercase;
    border-bottom: 1px solid #eeeeee;
    padding-bottom: 8px;
}

.purchase-form {
    margin: 20px 0;
}

.form-group {
    margin-bottom: 15px;
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 11px;
    font-weight: bold;
    margin-bottom: 5px;
    text-transform: lowercase;
    color: #333333;
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: Verdana, Geneva, sans-serif;
    font-size: 12px;
    padding: 8px;
    border: 1px solid #cccccc;
    background-color: #ffffff;
    color: #333333;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #666666;
    background-color: #fafafa;
}

.submit-btn {
    background-color: #ffffff;
    color: #333333;
    border: 1px solid #cccccc;
    padding: 10px 20px;
    font-size: 12px;
    cursor: pointer;
    text-transform: lowercase;
    font-weight: bold;
    transition: all 0.2s ease;
    margin-top: 10px;
}

.submit-btn:hover {
    background-color: #f0f0f0;
    border-color: #999999;
}

.submit-btn:active {
    transform: scale(0.98);
}

.submit-btn:disabled {
    background-color: #f9f9f9;
    color: #999999;
    border-color: #dddddd;
    cursor: not-allowed;
    opacity: 0.6;
}

.form-message {
    margin-top: 15px;
    padding: 10px;
    font-size: 11px;
    border-left: 3px solid #cccccc;
    display: none;
}

.form-message:not(:empty) {
    display: block;
}

.form-message.success {
    border-left-color: #009900;
    background-color: #f0fff0;
    color: #006600;
}

.form-message.error {
    border-left-color: #cc0000;
    background-color: #fff0f0;
    color: #990000;
}

/* Add to Cart Section */
.add-to-cart-section {
    background-color: #fafafa;
    border: 1px solid #eeeeee;
    padding: 15px;
    margin: 15px 0;
    border-radius: 3px;
}

.add-btn {
    background-color: #ffffff;
    color: #333333;
    border: 1px solid #cccccc;
    padding: 10px 20px;
    font-size: 12px;
    cursor: pointer;
    text-transform: lowercase;
    font-weight: bold;
    transition: all 0.2s ease;
}

.add-btn:hover {
    background-color: #f0f0f0;
    border-color: #999999;
}

.add-btn:active {
    transform: scale(0.98);
}

/* Product Image Preview */
.product-image-preview {
    margin: 15px 0;
    text-align: center;
    padding: 10px;
    background-color: #fafafa;
    border: 1px solid #eeeeee;
    border-radius: 3px;
}

.preview-image {
    max-width: 300px;
    max-height: 300px;
    width: auto;
    height: auto;
}

/* Shopping Cart Display */
.cart-section {
    background-color: #fafafa;
    border: 1px solid #eeeeee;
    padding: 15px;
    margin: 20px 0;
    border-radius: 3px;
}

.cart-title {
    font-size: 13px;
    font-weight: bold;
    margin: 0 0 15px 0;
    text-transform: lowercase;
    border-bottom: 1px solid #eeeeee;
    padding-bottom: 8px;
}

.cart-items {
    margin-bottom: 15px;
}

.cart-item {
    display: flex;
    gap: 15px;
    background-color: #ffffff;
    border: 1px solid #dddddd;
    padding: 12px;
    margin-bottom: 10px;
    border-radius: 3px;
    align-items: flex-start;
}

.cart-item-image {
    flex-shrink: 0;
    width: 80px;
    height: 80px;
    overflow: hidden;
    border: 1px solid #eeeeee;
    border-radius: 2px;
    background-color: #f9f9f9;
}

.cart-item-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cart-item-details {
    flex-grow: 1;
    font-size: 11px;
}

.cart-item-name {
    font-weight: bold;
    color: #333333;
    margin: 0 0 3px 0;
    font-size: 12px;
}

.cart-item-serial {
    color: #666666;
    font-style: italic;
    margin: 0 0 3px 0;
}

.cart-item-specs {
    color: #666666;
    margin: 0 0 5px 0;
}

.cart-item-price {
    font-weight: bold;
    color: #000000;
    margin: 0;
}

.remove-btn {
    background-color: #ffffff;
    color: #cc0000;
    border: 1px solid #dddddd;
    padding: 6px 12px;
    font-size: 10px;
    cursor: pointer;
    text-transform: lowercase;
    font-weight: bold;
    transition: all 0.2s ease;
    flex-shrink: 0;
    height: fit-content;
}

.remove-btn:hover {
    background-color: #fff0f0;
    border-color: #cc0000;
}

.cart-summary {
    background-color: #ffffff;
    border: 1px solid #dddddd;
    padding: 12px;
    text-align: right;
    border-radius: 3px;
}

.cart-total {
    margin: 0;
    font-size: 13px;
    font-weight: bold;
    color: #333333;
}

.cart-total strong {
    color: #000000;
    font-size: 14px;
}

/* Coming Soon / Placeholder */
.placeholder-text {
    font-size: 11px;
    color: #999999;
    font-style: italic;
    padding: 20px;
    text-align: center;
}

.coming-soon {
    font-size: 11px;
    color: #999999;
    font-style: italic;
    padding: 20px;
    text-align: center;
}

/* Sidebar */
.sidebar {
    width: 220px;
    flex-shrink: 0;
}

.sidebar-box {
    background-color: #ffffff;
    border: 1px solid #dddddd;
    padding: 15px;
    margin-bottom: 20px;
    font-size: 11px;
}

.sidebar-box h3 {
    font-size: 12px;
    font-weight: bold;
    margin-bottom: 10px;
    text-transform: lowercase;
    border-bottom: 1px solid #eeeeee;
    padding-bottom: 8px;
}

.sidebar-box p {
    line-height: 1.6;
    color: #666666;
}

/* Sidebar Navigation */
.sidebar-nav {
    list-style: none;
    margin: 0;
    padding: 0;
}

.sidebar-nav li {
    margin: 0;
    padding: 0;
}

.nav-link {
    display: block;
    padding: 8px 0;
    color: #0066cc;
    text-decoration: none;
    font-size: 11px;
    border-bottom: 1px solid #f0f0f0;
}

.nav-link:hover {
    color: #003399;
    background-color: #f9f9f9;
    padding-left: 5px;
    padding-right: 5px;
    text-decoration: underline;
}

.nav-link.active {
    color: #333333;
    font-weight: bold;
    text-decoration: none;
}

/* Info List */
.info-list {
    list-style: none;
    margin: 0;
    padding: 0;
}

.info-list li {
    padding: 5px 0;
    font-size: 10px;
    color: #999999;
}

/* Modal */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    cursor: pointer;
}

.modal-content {
    position: relative;
    background-color: #ffffff;
    border: 1px solid #999999;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
    z-index: 1001;
}

.modal-header {
    background-color: #f0f0f0;
    border-bottom: 1px solid #dddddd;
    padding: 15px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 16px;
    font-weight: bold;
    margin: 0;
    text-transform: lowercase;
}

.close-btn {
    background-color: transparent;
    border: none;
    color: #666666;
    font-size: 12px;
    cursor: pointer;
    font-weight: bold;
    padding: 5px 10px;
    transition: color 0.2s ease;
}

.close-btn:hover {
    color: #000000;
}

.modal-body {
    padding: 20px;
    font-size: 11px;
    line-height: 1.6;
    color: #333333;
}

/* Responsive Design */
@media (max-width: 768px) {
    .wrapper {
        flex-direction: column;
        gap: 20px;
        padding: 0 15px;
    }

    .sidebar {
        width: 100%;
        order: -1;
    }

    .site-title {
        font-size: 22px;
    }

    .section h2 {
        font-size: 16px;
    }

    .form-group {
        flex-direction: column;
    }

    .modal-content {
        max-width: 90%;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 11px;
    }

    .header-content {
        padding: 0 10px;
    }

    .site-title {
        font-size: 18px;
        letter-spacing: 1px;
    }

    .site-tagline {
        font-size: 10px;
    }

    .wrapper {
        padding: 0 10px;
        gap: 15px;
    }

    .section {
        padding: 15px;
        margin-bottom: 20px;
    }

    .section h2 {
        font-size: 14px;
    }

    .sidebar-box {
        padding: 12px;
        margin-bottom: 15px;
    }

    .product-item {
        padding: 12px 0;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 6px;
        font-size: 11px;
    }

    .submit-btn {
        padding: 8px 15px;
        font-size: 11px;
    }
}