:root {
    --bg: #0A0A0A;
    --panel: #1a1a1a;
    --panel-darker: #161616;
    --border: #333;
    --text: #e0e0e0;
    --text-muted: #999;
    --accent: #4A9EFF;
    --accent-hover: #6BB2FF;
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.4;
    overflow: hidden;
}

.container {
    display: flex;
    height: 100vh;
}

.left-sidebar {
    width: 320px;
    background: var(--panel);
    border-right: 1px solid var(--border);
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
}

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--panel-darker);
}

.sidebar-section {
    padding: 16px;
    border-bottom: 1px solid var(--border);
}

.sidebar-section h2 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.collapse-btn {
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    padding: 4px;
    border-radius: 4px;
    transition: background 0.2s ease;
}

.collapse-btn:hover {
    background: var(--border);
}

.sidebar-section .arrow {
    font-size: 12px;
    transition: transform 0.2s ease;
    transform: rotate(0deg); /* Default: pointing up when open */
    display: inline-block; /* Needed for transform to work */
    width: 12px;
    height: 12px;
    text-align: center;
}

.sidebar-section.collapsed .arrow {
    transform: rotate(180deg) !important; /* When collapsed: pointing down */
}

.sidebar-section.collapsed .section-content {
    display: none;
}

.file-controls {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.drop-zone {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border: 2px dashed var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: rgba(26, 26, 26, 0.9);
    backdrop-filter: blur(5px);
    z-index: 1000;
}

.drop-zone:hover {
    border-color: var(--accent);
    background: rgba(74, 158, 255, 0.1);
}

.drop-zone.dragover {
    border-color: var(--accent);
    background: rgba(74, 158, 255, 0.2);
}


.drop-zone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.drop-icon {
    font-size: 24px;
}

.drop-text {
    font-size: 14px;
    font-weight: 500;
}

.drop-subtext {
    font-size: 12px;
    color: var(--text-muted);
}

.status {
    padding: 8px 12px;
    background: var(--panel-darker);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 12px;
    text-align: center;
}

.load-file-btn {
    width: 100%;
    margin-top: 8px;
    font-size: 12px;
    padding: 10px 16px;
}

.file-info {
    padding: 12px;
    background: var(--panel-darker);
    border: 1px solid var(--border);
    border-radius: 6px;
    margin-bottom: 12px;
}

.info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 6px;
    font-size: 12px;
}

.info-row:last-child {
    margin-bottom: 0;
}

.info-label {
    color: var(--text-muted);
    font-weight: 500;
}

.info-value {
    color: var(--text);
    font-weight: 600;
    text-align: right;
    max-width: 60%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.control-group {
    margin-bottom: 16px;
}

.control-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-muted);
}

.control {
    width: 100%;
    padding: 8px 12px;
    background: var(--panel-darker);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 13px;
}

.control:focus {
    outline: none;
    border-color: var(--accent);
}

.btn {
    background: var(--accent);
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: background 0.2s ease;
}

.btn:hover {
    background: var(--accent-hover);
}

.btn.secondary {
    background: var(--panel-darker);
    border: 1px solid var(--border);
    color: var(--text);
}

.btn.secondary:hover {
    background: var(--border);
}

.size-input {
    width: 80px;
    display: inline-block;
    margin-right: 8px;
}

.fit-grid, .alignment-grid {
    display: grid;
    gap: 4px;
}

.fit-grid {
    grid-template-columns: repeat(3, 1fr);
}

.alignment-grid {
    grid-template-columns: repeat(3, 1fr);
    max-width: 120px;
}

.fit-btn, .alignment-btn {
    background: var(--panel-darker);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.fit-btn:hover, .alignment-btn:hover {
    background: var(--border);
}

.fit-btn.active, .alignment-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.button-grid {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.renderer-controls .button-grid {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 4px;
}

.renderer-controls .grid-btn {
    flex: 0 0 auto;
    width: auto;
    padding: 8px 12px;
}

.grid-btn {
    background: var(--panel-darker);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    text-align: left;
    transition: all 0.2s ease;
}

.grid-btn:hover {
    background: var(--border);
}

.grid-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}

.no-items {
    color: var(--text-muted);
    font-size: 12px;
    font-style: italic;
    padding: 8px 0;
}

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

.renderer-info {
    padding: 8px;
    background: var(--panel-darker);
    border-radius: 4px;
    border: 1px solid var(--border);
}

.renderer-status {
    font-size: 11px;
    color: var(--text-muted);
}

.canvas-area {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background: var(--panel-darker);
    overflow: hidden;
    min-height: 400px;
}

.rive-canvas {
    max-width: 100%;
    max-height: 100%;
    display: block;
    transition: all 0.2s ease;
}


.playback-overlay {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: block;
}

.playback-controls {
    display: flex;
    gap: 8px;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    padding: 12px 16px;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.playback-btn {
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 8px 12px;
    border-radius: 16px;
    font-size: 14px;
    transition: background 0.2s ease;
    min-width: 40px;
}

.playback-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.info-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.data-binding-item {
    margin-bottom: 16px;
    padding: 12px;
    background: var(--panel-darker);
    border: 1px solid var(--border);
    border-radius: 6px;
    position: relative;
}

.data-binding-item h4 {
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text);
}

.data-binding-control {
    margin-bottom: 8px;
}

.control-row {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 4px;
}

.binding-slider {
    flex: 1;
}

.binding-input {
    width: 80px;
    background: var(--panel-darker);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 6px 8px;
    border-radius: 4px;
    font-size: 14px;
}

.binding-input.hidden,
.binding-slider.hidden {
    display: none !important;
}

.toggle-input-btn {
    background: var(--panel-darker);
    border: 1px solid var(--border);
    color: var(--text);
    width: 32px;
    height: 32px;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s ease;
}

.toggle-input-btn:hover {
    background: var(--border);
}

.toggle-icon {
    font-size: 14px;
}

.data-binding-control input[type="range"] {
    margin-bottom: 4px;
}

.range-labels {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: #666;
    margin-top: 4px;
}

.text-input-container {
    display: flex;
    gap: 8px;
    align-items: center;
}

.apply-btn {
    background: var(--accent);
    border: none;
    color: white;
    padding: 6px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 11px;
}

input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    width: 100%;
    height: 6px;
    border-radius: 3px;
    background: var(--border);
    outline: none;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
}

input[type="range"]::-moz-range-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: none;
}

input[type="checkbox"] {
    appearance: none;
    width: 16px;
    height: 16px;
    border: 1px solid var(--border);
    border-radius: 3px;
    background: var(--panel-darker);
    cursor: pointer;
    position: relative;
}

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

input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 10px;
    font-weight: bold;
}

input[type="color"] {
    width: 36px;
    height: 36px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background: var(--panel-darker);
    cursor: pointer;
    padding: 2px;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 4px;
}

input[type="color"]::-webkit-color-swatch {
    border: none;
    border-radius: 4px;
}

.binding-settings-panel {
    position: fixed;
    z-index: 9999;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 12px;
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.binding-settings-panel::before {
    content: '';
    position: absolute;
    top: 20px;
    left: -6px;
    width: 0;
    height: 0;
    border-top: 6px solid transparent;
    border-bottom: 6px solid transparent;
    border-right: 6px solid var(--border);
}

.binding-settings-panel::after {
    content: '';
    position: absolute;
    top: 21px;
    left: -5px;
    width: 0;
    height: 0;
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-right: 5px solid var(--panel);
}

.binding-settings-panel.panel-left::before {
    left: auto;
    right: -6px;
    border-right: none;
    border-left: 6px solid var(--border);
}

.binding-settings-panel.panel-left::after {
    left: auto;
    right: -5px;
    border-right: none;
    border-left: 5px solid var(--panel);
}

.binding-settings-panel.hidden {
    display: none;
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 8px;
    font-size: 12px;
}

.settings-row:last-child {
    margin-bottom: 0;
}

.settings-label {
    color: var(--text);
    font-weight: 500;
}

.settings-switch {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 18px;
}

.settings-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--border);
    transition: .4s;
    border-radius: 18px;
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 12px;
    width: 12px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

input:checked + .switch-slider {
    background-color: var(--accent);
}

input:checked + .switch-slider:before {
    transform: translateX(16px);
}

.settings-input {
    width: 50px;
    padding: 4px 6px;
    background: var(--panel-darker);
    border: 1px solid var(--border);
    border-radius: 4px;
    color: var(--text);
    font-size: 11px;
}

.settings-input:focus {
    outline: none;
    border-color: var(--accent);
}

.range-inputs {
    display: flex;
    gap: 6px;
    align-items: center;
}

.range-separator {
    color: var(--text-muted);
    font-size: 11px;
}

.settings-button-container {
    position: relative;
    display: inline-block;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
    background: var(--panel-darker);
    margin-top: auto;
}

.footer-text {
    font-size: 11px;
    color: var(--text-muted);
    text-align: center;
}

.footer-text a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s ease;
}

.footer-text a:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}