:root {
    --bg-dark: #09090b;
    --bg-panel: #18181b;
    --bg-panel-hover: #27272a;
    --primary: #fafafa;
    --primary-hover: #e4e4e7;
    --primary-text: #09090b;
    --text-main: #f4f4f5;
    --text-muted: #a1a1aa;
    --border: #27272a;
    --success: #10b981;
    --error: #ef4444;
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
    font-weight: 400;
}

.app-container {
    display: flex;
    height: 100%;
}

.sidebar {
    width: 320px;
    background-color: var(--bg-panel);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
}

.sidebar-section {
    padding: 20px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}
.sidebar-section:last-child {
    flex-grow: 1;
    border-bottom: none;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

h2 {
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-muted);
    margin-bottom: 15px;
}

h3 {
    font-size: 16px;
    margin-bottom: 15px;
}

/* Controls */
select, input[type="text"] {
    width: 100%;
    padding: 10px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-main);
    border-radius: 4px;
    margin-bottom: 10px;
    outline: none;
}
select:focus, input[type="text"]:focus {
    border-color: var(--primary);
}

.create-gallery {
    display: flex;
    gap: 10px;
}
.create-gallery input {
    margin-bottom: 0;
}

button {
    cursor: pointer;
    border: none;
    padding: 10px 15px;
    border-radius: 4px;
    font-weight: 500;
    transition: all 0.2s;
}

button.btn-primary, #btnCreateGallery {
    background-color: var(--primary);
    color: var(--primary-text);
}
button.btn-primary:hover, #btnCreateGallery:hover {
    background-color: var(--primary-hover);
}
button:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-secondary {
    display: inline-block;
    padding: 10px 15px;
    background-color: var(--border);
    color: var(--text-main);
    border-radius: 4px;
    cursor: pointer;
    text-align: center;
    transition: background-color 0.2s;
    font-size: 13px;
}
.btn-secondary:hover {
    background-color: var(--bg-panel-hover);
}

/* Image Grid */
.image-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    overflow-y: auto;
}

.image-thumb {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    border-radius: 8px;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all 0.2s;
    background-color: var(--bg-panel);
}
.image-thumb:hover {
    transform: scale(1.02);
}
.image-thumb.selected {
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--bg-dark), 0 0 0 4px var(--primary);
}

/* Workspace */
.workspace {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.editor-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 30px;
    border-bottom: 1px solid var(--border);
    background-color: var(--bg-panel);
}
.editor-header h2 { margin: 0; }

.editor-content {
    display: flex;
    flex-grow: 1;
    overflow: hidden;
}

.canvas-container {
    flex-grow: 1;
    background-color: #000;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}
canvas {
    max-width: 100%;
    max-height: 100%;
    box-shadow: 0 4px 30px rgba(0,0,0,0.8);
    cursor: grab;
}
canvas:active {
    cursor: grabbing;
}

.controls-panel {
    width: 300px;
    background-color: var(--bg-panel);
    border-left: 1px solid var(--border);
    padding: 20px;
    overflow-y: auto;
}

.control-group {
    background-color: var(--bg-dark);
    padding: 15px;
    border-radius: 4px;
    margin-bottom: 20px;
    border: 1px solid var(--border);
}

.control-group label {
    display: block;
    margin-bottom: 15px;
    font-size: 13px;
    color: var(--text-muted);
}
input[type="range"] {
    width: 100%;
    margin-top: 8px;
    accent-color: var(--primary);
}

.overlay-selector {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
    align-items: center;
}
.overlay-selector select { margin-bottom: 0; flex-grow: 1;}

.position-info {
    font-size: 12px;
    color: var(--text-muted);
    text-align: center;
    background-color: var(--bg-panel);
    padding: 10px;
    border-radius: 4px;
    border: 1px solid var(--border);
}

/* Console */
.console-section {
    height: 150px;
    background-color: #000;
    border-top: 1px solid var(--border);
    padding: 15px;
    display: flex;
    flex-direction: column;
}
.console-section h3 {
    margin-bottom: 10px;
    font-size: 13px;
    color: var(--text-muted);
}
.console-log {
    flex-grow: 1;
    overflow-y: auto;
    font-family: monospace;
    font-size: 12px;
    line-height: 1.5;
}
.console-log div {
    border-bottom: 1px solid #1a1a1a;
    padding: 4px 0;
}
.log-success { color: var(--success); }
.log-error { color: var(--error); }
.log-info { color: #3b82f6; }

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-dark);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}
.modal-content {
    background-color: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: 8px;
    width: 450px;
    max-width: 90%;
    box-shadow: 0 10px 25px rgba(0,0,0,0.5);
    display: flex;
    flex-direction: column;
}
.modal-header {
    padding: 15px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.modal-header h3 { margin: 0; font-size: 16px; }
.close-modal {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
    padding: 0;
}
.close-modal:hover { color: var(--text-main); }
.modal-body {
    padding: 20px;
}
.gallery-tabs {
    display: flex;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
}
.tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    padding: 10px 20px;
    border-bottom: 2px solid transparent;
    border-radius: 0;
}
.tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.gallery-list {
    max-height: 300px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-dark);
}
.gallery-item {
    padding: 10px 15px;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: background-color 0.2s;
    font-size: 14px;
}
.gallery-item:last-child { border-bottom: none; }
.gallery-item:hover {
    background-color: var(--bg-panel-hover);
}
.gallery-item-path {
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 3px;
}

/* Explorer UI */
.explorer-toolbar {
    display: flex;
    gap: 10px;
    align-items: center;
    margin-bottom: 10px;
}
.explorer-toolbar button {
    padding: 5px 10px;
    background: var(--bg-panel-hover);
    border: 1px solid var(--border);
    color: var(--text-main);
    border-radius: 4px;
}
.explorer-toolbar button:disabled { opacity: 0.5; cursor: not-allowed; }
.breadcrumb {
    flex-grow: 1;
    font-size: 13px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    background: var(--bg-dark);
    padding: 6px 10px;
    border-radius: 4px;
    border: 1px solid var(--border);
}
#explorerSearch {
    width: 150px;
    margin-bottom: 0;
    padding: 6px 10px;
}
.explorer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
    height: 250px;
    overflow-y: auto;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    padding: 10px;
    border-radius: 4px;
    align-content: start;
}
.explorer-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 10px 5px;
    border-radius: 6px;
    cursor: pointer;
    border: 1px solid transparent;
    text-align: center;
    transition: all 0.1s;
    user-select: none;
}
.explorer-item:hover {
    background: var(--bg-panel-hover);
}
.explorer-item.selected {
    background: rgba(99, 102, 241, 0.2);
    border-color: var(--primary);
}
.explorer-icon {
    font-size: 32px;
    margin-bottom: 5px;
}
.explorer-label {
    font-size: 11px;
    word-break: break-word;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.explorer-pagination {
    display: flex;
    justify-content: center;
    gap: 5px;
    margin-top: 10px;
}
.explorer-pagination button {
    padding: 4px 8px;
    font-size: 12px;
    background: var(--bg-panel-hover);
    border: 1px solid var(--border);
    color: var(--text-main);
    cursor: pointer;
}
.explorer-pagination button.active {
    background: var(--primary);
    border-color: var(--primary);
}
.explorer-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--border);
}
.selected-info {
    font-size: 13px;
    color: var(--text-muted);
}
.selected-info strong {
    color: var(--text-main);
}

/* Responsive */
@media (max-width: 900px) {
    body {
        overflow-y: auto;
    }
    .app-container {
        flex-direction: column;
        height: auto;
        min-height: 100vh;
    }
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border);
        max-height: 400px;
    }
    .editor-content {
        flex-direction: column;
    }
    .canvas-container {
        min-height: 50vh;
    }
    .controls-panel {
        width: 100%;
        border-left: none;
        border-top: 1px solid var(--border);
    }
}