:root {
    --bg-primary: #0a0e17;
    --bg-secondary: #111827;
    --bg-tertiary: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-cyan: #06b6d4;
    --accent-emerald: #10b981;
    --accent-amber: #f59e0b;
    --accent-red: #ef4444;
    --accent-purple: #a855f7;
    --border-subtle: rgba(148, 163, 184, 0.12);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
}

.header h1 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 1.2rem;
    white-space: nowrap;
}

.upload-area {
    display: flex;
    align-items: center;
    gap: 12px;
    flex: 1;
}

.upload-btn {
    background: var(--bg-tertiary);
    border: 1px dashed var(--text-muted);
    border-radius: 8px;
    padding: 8px 16px;
    color: var(--text-secondary);
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
    white-space: nowrap;
}

.upload-btn:hover, .upload-btn.drag-over {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.file-info {
    color: var(--text-muted);
    font-size: 0.8rem;
    font-family: 'JetBrains Mono', monospace;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.main-area {
    display: flex;
    flex: 1;
    overflow: hidden;
}

.controls-panel {
    width: 220px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-subtle);
    padding: 16px;
    flex-shrink: 0;
    overflow-y: auto;
}

.controls-panel h2 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 12px;
}

.layer-toggle {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 0;
}

.layer-toggle input[type="checkbox"] {
    appearance: none;
    width: 16px;
    height: 16px;
    border: 2px solid var(--text-muted);
    border-radius: 3px;
    cursor: pointer;
    flex-shrink: 0;
    position: relative;
}

.layer-toggle input[type="checkbox"]:checked {
    border-color: var(--accent-cyan);
    background: var(--accent-cyan);
}

.layer-toggle input[type="checkbox"]:checked::after {
    content: '\2713';
    position: absolute;
    top: -1px;
    left: 2px;
    font-size: 11px;
    color: var(--bg-primary);
    font-weight: 700;
}

.layer-color {
    width: 12px;
    height: 12px;
    border-radius: 2px;
    flex-shrink: 0;
}

.layer-label {
    font-size: 0.82rem;
    color: var(--text-secondary);
    cursor: pointer;
    user-select: none;
}

.layer-count {
    font-size: 0.7rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    margin-left: auto;
}

.controls-section {
    margin-bottom: 20px;
}

.controls-section:last-child {
    margin-bottom: 0;
}

.map-info {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    line-height: 1.8;
}

.map-info span {
    color: var(--text-secondary);
}

.canvas-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

canvas {
    display: block;
    width: 100%;
    height: 100%;
    cursor: grab;
}

canvas:active {
    cursor: grabbing;
}

.status-bar {
    position: absolute;
    bottom: 12px;
    right: 12px;
    background: rgba(17, 24, 39, 0.9);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 6px 12px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.72rem;
    color: var(--text-muted);
    display: flex;
    gap: 16px;
    pointer-events: none;
}

.status-bar span { color: var(--text-secondary); }

.empty-state {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    color: var(--text-muted);
}

.empty-state svg {
    width: 64px;
    height: 64px;
    margin-bottom: 16px;
    opacity: 0.4;
}

.empty-state p {
    font-size: 0.9rem;
    margin-bottom: 4px;
}

.empty-state .hint {
    font-size: 0.78rem;
    font-family: 'JetBrains Mono', monospace;
}

.search-box {
    display: flex;
    gap: 4px;
}

.search-box input {
    flex: 1;
    min-width: 0;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 5px 8px;
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.78rem;
    outline: none;
    transition: border-color 0.2s;
}

.search-box input:focus {
    border-color: var(--accent-cyan);
}

.search-box button {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 4px;
    padding: 5px 10px;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
    white-space: nowrap;
}

.search-box button:hover {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.search-result {
    font-size: 0.72rem;
    font-family: 'JetBrains Mono', monospace;
    margin-top: 6px;
    min-height: 1.2em;
}

.search-result.found {
    color: var(--accent-emerald);
}

.search-result.not-found {
    color: var(--accent-red);
}

.fit-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-subtle);
    border-radius: 6px;
    padding: 6px 12px;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    cursor: pointer;
    transition: border-color 0.2s, color 0.2s;
    width: 100%;
    margin-top: 8px;
}

.fit-btn:hover {
    border-color: var(--accent-cyan);
    color: var(--text-primary);
}

.props-panel {
    flex: 0 0 480px;
    min-width: 480px;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.props-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-subtle);
}

.props-header h2 {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.props-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 4px;
    line-height: 1;
}

.props-close:hover {
    color: var(--text-primary);
}

.props-body {
    flex: 1;
    overflow-y: auto;
    padding: 12px 16px;
}

.props-hint {
    color: var(--text-muted);
    font-size: 0.78rem;
    line-height: 1.5;
}

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

.props-table tr {
    border-bottom: 1px solid var(--border-subtle);
}

.props-table td {
    padding: 6px 0;
    font-size: 0.75rem;
    vertical-align: top;
}

.props-table .prop-key {
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
    padding-right: 12px;
    white-space: nowrap;
    width: 1%;
}

.props-table .prop-val {
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
    word-break: break-all;
}

.props-table .prop-val.nested {
    padding-left: 8px;
}

.props-table .prop-val.nested span {
    display: block;
    color: var(--text-muted);
    font-size: 0.7rem;
}

.props-element-title {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.82rem;
    color: var(--accent-cyan);
    margin-bottom: 12px;
}