:root {
    --win98-gray: #c0c0c0;
    --win98-dark-gray: #808080;
    --win98-light-gray: #dfdfdf;
    --win98-navy: #000080;
    --win98-black: #000000;
    --win98-white: #ffffff;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'MS Sans Serif', 'Segoe UI', Tahoma, sans-serif;
    font-size: 12px;
}

body {
    background-color: #008080;
    padding: 20px;
    height: 100vh;
    overflow: hidden;
}

.window {
    background-color: var(--win98-gray);
    border: 2px solid;
    border-top-color: var(--win98-light-gray);
    border-left-color: var(--win98-light-gray);
    border-right-color: var(--win98-black);
    border-bottom-color: var(--win98-black);
    box-shadow: 1px 1px 0 0 var(--win98-dark-gray) inset, -1px -1px 0 0 var(--win98-dark-gray) inset;
    width: 100%;
    height: calc(100vh - 40px);
    display: flex;
    flex-direction: column;
}

.title-bar {
    background-color: var(--win98-navy);
    color: var(--win98-white);
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 2px 4px;
}

.title-bar-text {
    font-weight: bold;
}

.title-bar-controls {
    display: flex;
}

.title-bar-controls button {
    width: 16px;
    height: 14px;
    margin-left: 2px;
    border: 1px solid var(--win98-dark-gray);
    background-color: var(--win98-gray);
    position: relative;
}

.window-body {
    padding: 8px;
    flex: 1;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.app-container {
    display: flex;
    height: 100%;
    position: relative;
    overflow: hidden;
    flex-direction: row;
    min-height: 400px;
    flex: 1;
}

@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .viewer-container {
        margin-right: 0;
        margin-bottom: 8px;
        min-height: 300px;
        flex: 2;
    }
    
    .accessories-panel {
        height: 300px;
        min-height: 300px;
        flex: 1;
        max-width: 100%;
    }
}

.viewer-container {
    flex: 3;
    border: 2px solid;
    border-top-color: var(--win98-black);
    border-left-color: var(--win98-black);
    border-right-color: var(--win98-light-gray);
    border-bottom-color: var(--win98-light-gray);
    background-color: var(--win98-white);
    margin-right: 8px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 400px;
    position: relative;
}

#scene-container {
    flex: 1;
    background-color: #f0f0f0;
    position: relative;
    min-height: 300px;
}

.control-panel {
    display: flex;
    justify-content: space-between;
    padding: 5px;
    border-top: 1px solid var(--win98-dark-gray);
    flex-wrap: wrap;
    min-height: 40px;
    position: relative;
    z-index: 5;
    overflow-x: auto;
    gap: 5px;
    flex-shrink: 0;
    background-color: var(--win98-gray);
}

.left-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    align-items: center;
    justify-content: flex-start;
}

.transform-controls {
    display: flex;
    align-items: center;
    margin-left: auto;
}

.accessories-panel {
    flex: 1;
    border: 2px solid;
    border-top-color: var(--win98-black);
    border-left-color: var(--win98-black);
    border-right-color: var(--win98-light-gray);
    border-bottom-color: var(--win98-light-gray);
    background-color: var(--win98-white);
    display: flex;
    flex-direction: column;
    min-width: 250px;
    max-width: 400px;
}

.panel-title {
    background-color: var(--win98-navy);
    color: var(--win98-white);
    padding: 2px 4px;
    font-weight: bold;
}

.tabs {
    display: flex;
    border-bottom: 1px solid var(--win98-dark-gray);
    flex-wrap: wrap;
}

.tab {
    padding: 4px 8px;
    border: 1px solid var(--win98-dark-gray);
    border-bottom: none;
    margin-right: 2px;
    margin-bottom: -1px;
    background-color: var(--win98-gray);
    cursor: pointer;
    white-space: nowrap;
}

.tab.active {
    background-color: var(--win98-light-gray);
    border-bottom: 1px solid var(--win98-light-gray);
}

.items-container {
    padding: 8px;
    overflow-y: auto;
    flex: 1;
    min-height: 200px;
}

.items-list {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 8px;
    width: 100%;
}

.item {
    padding: 8px;
    border: 1px solid var(--win98-dark-gray);
    background-color: var(--win98-light-gray);
    cursor: pointer;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.item:hover {
    background-color: var(--win98-gray);
}

.item-preview {
    width: 100%;
    height: 60px;
    border: 1px solid var(--win98-black);
    margin-bottom: 4px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    background-color: var(--win98-light-gray);
}

.item-name {
    text-align: center;
    font-size: 11px;
}

.status-bar {
    display: flex;
    padding: 2px 4px;
    border-top: 1px solid var(--win98-dark-gray);
    position: relative;
    z-index: 5;
}

.status-bar-field {
    margin-right: 16px;
}

button {
    padding: 4px 8px;
    border: 2px solid;
    border-top-color: var(--win98-light-gray);
    border-left-color: var(--win98-light-gray);
    border-right-color: var(--win98-black);
    border-bottom-color: var(--win98-black);
    background-color: var(--win98-gray);
    cursor: pointer;
}

button:active {
    border-top-color: var(--win98-black);
    border-left-color: var(--win98-black);
    border-right-color: var(--win98-light-gray);
    border-bottom-color: var(--win98-light-gray);
}

.hidden {
    display: none !important;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 200;
}

.modal .window {
    width: auto;
    height: auto;
    min-width: 300px;
    max-width: 90%;
}

.modal .window-body {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 16px;
    overflow: auto;
}

#snapshot-image {
    max-width: 100%;
    max-height: 400px;
    border: 1px solid var(--win98-black);
    margin-bottom: 16px;
}

.button-group {
    display: flex;
    justify-content: space-between;
    width: 100%;
    max-width: 200px;
}

.transform-mode-title {
    margin-right: 8px;
    font-weight: bold;
}

.transform-mode-buttons {
    display: flex;
}

.transform-mode-buttons button {
    margin-right: 4px;
}

.transform-mode-buttons button.active {
    background-color: var(--win98-navy);
    color: var(--win98-white);
}

.bone-transform-panel {
    position: absolute;
    bottom: 45px;
    left: 8px;
    background-color: var(--win98-gray);
    border: 2px solid;
    border-top-color: var(--win98-light-gray);
    border-left-color: var(--win98-light-gray);
    border-right-color: var(--win98-black);
    border-bottom-color: var(--win98-black);
    padding: 8px;
    width: 250px;
    z-index: 10;
    max-width: 90%;
}

@media (max-width: 600px) {
    .bone-transform-panel {
        width: 200px;
    }
}

.bone-info {
    background-color: var(--win98-navy);
    color: var(--win98-white);
    padding: 2px 4px;
    margin-bottom: 8px;
    font-weight: bold;
}

.bone-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.bone-control {
    display: flex;
    align-items: center;
}

.bone-control label {
    width: 20px;
    font-weight: bold;
}

.bone-control input[type="range"] {
    flex: 1;
    margin: 0 8px;
    height: 20px;
    -webkit-appearance: none;
    background-color: var(--win98-white);
    border: 2px solid;
    border-top-color: var(--win98-black);
    border-left-color: var(--win98-black);
    border-right-color: var(--win98-light-gray);
    border-bottom-color: var(--win98-light-gray);
}

.bone-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 20px;
    background-color: var(--win98-gray);
    border: 1px solid var(--win98-black);
}

.bone-control span {
    width: 40px;
    text-align: right;
}

#reset-bone {
    margin-top: 8px;
    align-self: center;
}

.accessory-transform-panel {
    position: absolute;
    top: 8px;
    right: 8px;
    background-color: var(--win98-gray);
    border: 2px solid;
    border-top-color: var(--win98-light-gray);
    border-left-color: var(--win98-light-gray);
    border-right-color: var(--win98-black);
    border-bottom-color: var(--win98-black);
    padding: 8px;
    width: 250px;
    z-index: 10;
    max-width: 90%;
}

@media (max-width: 600px) {
    .accessory-transform-panel {
        width: 200px;
    }
}

.accessory-info {
    background-color: var(--win98-navy);
    color: var(--win98-white);
    padding: 2px 4px;
    margin-bottom: 8px;
    font-weight: bold;
}

.accessory-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.accessory-control {
    display: flex;
    align-items: center;
}

.accessory-control label {
    width: 60px;
    font-weight: bold;
}

.accessory-control input[type="range"] {
    flex: 1;
    margin: 0 8px;
    height: 20px;
    -webkit-appearance: none;
    background-color: var(--win98-white);
    border: 2px solid;
    border-top-color: var(--win98-black);
    border-left-color: var(--win98-black);
    border-right-color: var(--win98-light-gray);
    border-bottom-color: var(--win98-light-gray);
}

.accessory-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 20px;
    background-color: var(--win98-gray);
    border: 1px solid var(--win98-black);
}

.accessory-control span {
    width: 40px;
    text-align: right;
}

#reset-accessory, #remove-accessory {
    margin-top: 4px;
}

.transform-controls .axis {
    transition: all 0.2s ease-in-out;
}

.transform-controls .axis:hover {
    transform: scale(1.2);
}

.help-panel {
    position: absolute;
    top: 10px;
    left: 10px;
    width: 280px;
    background-color: var(--win98-gray);
    border: 2px solid;
    border-top-color: var(--win98-light-gray);
    border-left-color: var(--win98-light-gray);
    border-right-color: var(--win98-black);
    border-bottom-color: var(--win98-black);
    box-shadow: 1px 1px 0 0 var(--win98-dark-gray) inset, -1px -1px 0 0 var(--win98-dark-gray) inset;
    z-index: 20;
    font-size: 11px;
    opacity: 0.9;
    transition: all 0.3s ease;
    max-width: 90%;
}

@media (max-width: 600px) {
    .help-panel {
        width: 220px;
    }
}

.help-panel.collapsed .help-content {
    display: none;
}

.help-panel.collapsed {
    width: auto;
}

.help-title {
    background-color: var(--win98-navy);
    color: var(--win98-white);
    padding: 2px 4px;
    font-weight: bold;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.help-title button {
    width: 16px;
    height: 16px;
    line-height: 12px;
    padding: 0;
    font-weight: bold;
    margin-left: 4px;
}

.help-content {
    padding: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.help-content h3 {
    margin: 4px 0;
    font-size: 11px;
    border-bottom: 1px solid var(--win98-dark-gray);
    padding-bottom: 2px;
}

.help-content ul {
    margin: 0 0 8px 0;
    padding-left: 20px;
}

.help-content li {
    margin-bottom: 2px;
}

.loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: #008080;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    transition: opacity 0.5s ease;
}

.loading-window {
    width: 300px;
    max-width: 90%;
    background-color: var(--win98-gray);
    border: 2px solid;
    border-top-color: var(--win98-light-gray);
    border-left-color: var(--win98-light-gray);
    border-right-color: var(--win98-black);
    border-bottom-color: var(--win98-black);
    box-shadow: 1px 1px 0 0 var(--win98-dark-gray) inset, -1px -1px 0 0 var(--win98-dark-gray) inset;
}

.loading-content {
    padding: 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.loader-container {
    margin-bottom: 16px;
    text-align: center;
}

.hourglass {
    width: 32px;
    height: 32px;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.loading-progress-container {
    width: 100%;
    height: 20px;
    background-color: var(--win98-white);
    border: 2px solid;
    border-top-color: var(--win98-black);
    border-left-color: var(--win98-black);
    border-right-color: var(--win98-light-gray);
    border-bottom-color: var(--win98-light-gray);
    margin-bottom: 8px;
}

.loading-progress-bar {
    height: 100%;
    width: 0%;
    background-color: var(--win98-navy);
    transition: width 0.3s ease;
}

.loading-text {
    text-align: center;
    width: 100%;
}

.bg-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    border: 1px solid var(--win98-dark-gray);
    background-color: var(--win98-light-gray);
    cursor: pointer;
    padding: 8px;
    margin-bottom: 8px;
    position: relative;
    width: 100%;
}

.bg-item:hover {
    background-color: var(--win98-gray);
}

.bg-preview {
    width: 100%;
    height: 60px;
    border: 1px solid var(--win98-black);
    margin-bottom: 4px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.bg-name {
    text-align: center;
    font-size: 11px;
}

.bg-item.active {
    border: 2px solid var(--win98-navy);
    background-color: var(--win98-light-gray);
    padding: 7px;
}

.bg-item[data-bg="color"] {
    position: relative;
    margin-bottom: 8px;
}

.custom-color-preview {
    background-color: rgb(100, 149, 237); /* Default color - cornflowerblue */
}

.color-picker-container {
    width: 100%;
    padding: 8px;
    border: 1px solid var(--win98-dark-gray);
    background-color: var(--win98-gray);
    margin-top: 8px;
}

.color-controls {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.color-control {
    display: flex;
    align-items: center;
}

.color-control label {
    width: 20px;
    font-weight: bold;
}

.color-control input[type="range"] {
    flex: 1;
    margin: 0 8px;
    height: 20px;
    -webkit-appearance: none;
    background-color: var(--win98-white);
    border: 2px solid;
    border-top-color: var(--win98-black);
    border-left-color: var(--win98-black);
    border-right-color: var(--win98-light-gray);
    border-bottom-color: var(--win98-light-gray);
}

.color-control input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 20px;
    background-color: var(--win98-gray);
    border: 1px solid var(--win98-black);
}

.color-control span {
    width: 40px;
    text-align: right;
}

#apply-color {
    margin-top: 5px;
    align-self: center;
}

.bg-item[data-bg="custom-upload"] .bg-preview {
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: #f0f0f0;
    border: 1px dashed #808080;
    cursor: pointer;
    transition: all 0.2s ease;
}

.bg-item[data-bg="custom-upload"]:hover .bg-preview {
    background-color: #e0e0e0;
}

.bg-item[data-bg="custom-upload"] span {
    font-size: 24px;
    color: #808080;
}

.control-panel button {
    white-space: nowrap;
    flex: 0 0 auto;
    margin-bottom: 3px;
}