/* WebLoom - IDE-like dark theme */
/* Color palette from Antigravity IDE */

:root {
    --bg-lighter: #1f1f1f;
    --bg-dark: #181818;
    --border-color: #2b2b2b;
    --code-highlight: #3c3c3c;
    --code-block: #242626;
    --scrollbar-active: #464646;
    --scrollbar-inactive: #434343;
    --text-primary: #cccccc;
    --text-secondary: #808080;
    --text-muted: #666666;
    --accent-blue: #0078ca;
    --accent-blue-dim: #005a9e;

    /* Additional UI colors */
    --error-red: #f14c4c;
    --success-green: #4ec9b0;
    --warning-yellow: #cca700;

    /* Model colors for text attribution */
    --color-human: #cccccc;
    --color-model-1: #4fc3f7;
    /* cyan */
    --color-model-2: #ce93d8;
    /* purple */
    --color-model-3: #81c784;
    /* green */
    --color-model-4: #ffb74d;
    /* orange */
    --color-model-5: #f06292;
    /* pink */
}

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

html,
body {
    height: 100%;
    overflow: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 13px;
    background-color: var(--bg-dark);
    color: var(--text-primary);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--bg-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--scrollbar-inactive);
    border-radius: 0;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--scrollbar-active);
}

::-webkit-scrollbar-corner {
    background: var(--bg-dark);
}

* {
    scrollbar-width: thin;
    scrollbar-color: var(--scrollbar-inactive) var(--bg-dark);
}

/* ============================================
   LAYOUT
   ============================================ */

.app-container {
    display: flex;
    height: calc(100vh - 32px);
    /* Leave room for bottom bar */
    width: 100vw;
    position: relative;
}

/* ============================================
   SIDEBAR
   ============================================ */

.sidebar {
    width: 240px;
    min-width: 240px;
    background-color: var(--bg-dark);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: width 0.15s ease, min-width 0.15s ease;
}

.sidebar.collapsed {
    width: 0;
    min-width: 0;
}

/* When sidebar is collapsed, make room for the expand button in left panel */
.sidebar.collapsed~.main-content .panel:first-child .panel-header {
    padding-left: 36px;
}

.sidebar-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 12px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-dark);
    height: 32px;
}

.sidebar-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
}

.sidebar-toggle {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 2px 4px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
}

.sidebar-expand-btn {
    position: absolute;
    left: 4px;
    top: 4px;
    width: 24px;
    height: 24px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    font-size: 16px;
}

.sidebar-expand-btn:hover {
    color: var(--text-primary);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    border-right: 1px solid var(--border-color);
}

.sidebar-divider {
    height: 1px;
    background: var(--border-color);
    margin: 12px 0;
}

/* ============================================
   CONTROLS
   ============================================ */

.control-group {
    margin-bottom: 12px;
}

.control-group label {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 4px;
    font-weight: 500;
}

.control-group input[type="text"],
.control-group input[type="password"],
.control-group input[type="number"],
.control-group textarea {
    width: 100%;
    padding: 4px 8px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 12px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s ease;
}

.control-group input:focus,
.control-group textarea:focus {
    border-color: var(--accent-blue);
}

.control-group textarea {
    resize: vertical;
    min-height: 40px;
}

.control-group input[type="number"] {
    -moz-appearance: textfield;
}

.control-group input[type="number"]::-webkit-outer-spin-button,
.control-group input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

.value-input {
    width: 50px !important;
    text-align: right;
    padding: 2px 4px !important;
    font-size: 11px !important;
    background: transparent !important;
    border: 1px solid transparent !important;
    color: var(--accent-blue) !important;
}

.value-input:hover {
    background: var(--code-highlight) !important;
}

.value-input:focus {
    background: var(--bg-dark) !important;
    border-color: var(--accent-blue) !important;
}

/* Range sliders */
.control-group input[type="range"] {
    width: 100%;
    height: 4px;
    -webkit-appearance: none;
    background: var(--border-color);
    outline: none;
    margin-top: 4px;
}

.control-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 12px;
    height: 12px;
    background: var(--accent-blue);
    cursor: pointer;
    border-radius: 50%;
}

.control-group input[type="range"]::-moz-range-thumb {
    width: 12px;
    height: 12px;
    background: var(--accent-blue);
    cursor: pointer;
    border: none;
    border-radius: 50%;
}

/* Checkboxes */
.checkbox-label {
    display: flex !important;
    align-items: center;
    gap: 8px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 14px;
    height: 14px;
    margin: 0;
    cursor: pointer;
    accent-color: var(--accent-blue);
}

/* Help text */
.help-text {
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 4px;
    line-height: 1.4;
}

.detected-text {
    font-size: 10px;
    color: var(--text-secondary);
    margin-top: 4px;
}

.detected-text span {
    color: var(--accent-blue);
}

/* Buttons */
.btn-small {
    padding: 4px 8px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s ease;
    margin-top: 6px;
    margin-right: 4px;
}

.btn-small:hover {
    background: var(--code-highlight);
    border-color: var(--accent-blue);
}

/* Import/Export side-by-side buttons */
.import-export-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
}

.btn-half {
    flex: 1 1 50%;
    padding: 4px 8px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s ease;
    margin: 0;
}

.btn-half:first-of-type {
    border-right: none;
}

.btn-half:hover {
    background: var(--code-highlight);
    border-color: var(--accent-blue);
    position: relative;
    z-index: 1;
}

.btn-half:first-of-type:hover {
    border-right: 1px solid var(--accent-blue);
}

.btn-icon {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.btn-icon:hover {
    color: var(--text-primary);
}

/* Model Legend */
.model-legend {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 11px;
    color: var(--text-secondary);
}

.legend-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.legend-dot.color-human { background: var(--text-primary); }
.legend-dot.color-1 { background: var(--color-model-1); }
.legend-dot.color-2 { background: var(--color-model-2); }
.legend-dot.color-3 { background: var(--color-model-3); }
.legend-dot.color-4 { background: var(--color-model-4); }
.legend-dot.color-5 { background: var(--color-model-5); }

.legend-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.legend-empty {
    font-size: 11px;
    color: var(--text-muted);
    font-style: italic;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main-content {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
}

.panel {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background-color: var(--bg-dark);
}

.tree-panel,
.editor-panel {
    flex: 1;
    min-width: 200px;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 12px;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-dark);
    height: 32px;
}

.panel-header.drag-over {
    background-color: var(--bg-lighter);
}

.panel-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-secondary);
    padding: 8px 20px;
    border: 1px solid var(--border-color);
    border-bottom: none;
    background: var(--bg-lighter);
    margin-bottom: -1px;
    align-self: stretch;
    display: flex;
    align-items: center;
    cursor: grab;
    transition: background 0.15s ease, transform 0.15s ease;
}

.panel-title:active {
    cursor: grabbing;
}

.panel-title.dragging {
    opacity: 0.5;
    background: var(--accent-blue);
    color: var(--text-primary);
}

.panel-title.drag-over {
    background: var(--code-highlight);
    border-color: var(--accent-blue);
}

.panel-actions {
    display: flex;
    gap: 4px;
}

.panel-content {
    flex: 1;
    overflow: hidden;
    position: relative;
}


/* Panel resizer */
.panel-resizer {
    width: 4px;
    background: transparent;
    cursor: ew-resize;
    position: relative;
    z-index: 10;
}

.panel-resizer::after {
    content: '';
    position: absolute;
    left: 0;
    top: 31px;
    bottom: 0;
    width: 100%;
    background: transparent;
    transition: background 0.15s ease;
}

.panel-resizer:hover::after {
    background: var(--accent-blue);
}

/* ============================================
   TREE CANVAS
   ============================================ */

#tree-canvas {
    display: block;
    width: 100%;
    height: 100%;
    background: var(--bg-lighter);
    cursor: grab;
}

#tree-canvas.dragging {
    cursor: grabbing;
}

/* Tree nodes - VSCode-like sharp corners */
.tree-node {
    cursor: pointer;
    pointer-events: all;
}

.tree-node .node-bg {
    fill: var(--bg-lighter);
    stroke-width: 1px;
    transition: fill 0.1s ease, stroke-width 0.1s ease;
}

.tree-node:hover .node-bg {
    fill: var(--code-highlight);
}

.tree-node.selected .node-bg {
    stroke-width: 2px;
}

.tree-node.loading .node-bg {
    stroke: var(--warning-yellow) !important;
    stroke-dasharray: 4 2;
}

.tree-node.error .node-bg {
    stroke: var(--error-red) !important;
}

.node-text {
    font-size: 12px;
    fill: var(--text-primary);
    font-family: 'Inter', sans-serif;
    pointer-events: none;
    user-select: none;
}

/* Edges */
.tree-edge {
    stroke: var(--border-color);
    stroke-width: 1px;
    fill: none;
    opacity: 0.6;
}

.tree-edge.on-path {
    stroke: var(--accent-blue-dim);
    stroke-width: 1.5px;
    opacity: 1;
}

/* Plus button - round, transparent until hover */
.plus-group {
    cursor: pointer;
    pointer-events: all;
}

.plus-button {
    fill: transparent;
    stroke: none;
    rx: 10;
    ry: 10;
    transition: fill 0.1s ease;
}

.plus-group:hover .plus-button {
    fill: var(--code-highlight);
}

.plus-symbol {
    font-size: 16px;
    color: var(--text-muted);
    pointer-events: none;
}

.plus-group:hover .plus-symbol {
    color: var(--text-primary);
}

/* Hover buttons */
.hover-buttons {
    pointer-events: all;
}

.hover-btn {
    cursor: pointer;
}

.hover-btn-bg {
    fill: var(--bg-lighter);
    stroke: var(--border-color);
    stroke-width: 1px;
}

.hover-btn:hover .hover-btn-bg {
    fill: var(--code-highlight);
    stroke: var(--accent-blue);
}

.hover-btn.delete:hover .hover-btn-bg {
    stroke: var(--error-red);
}

.hover-btn-icon {
    font-size: 10px;
    color: var(--text-secondary);
}

.hover-btn:hover .hover-btn-icon {
    color: var(--text-primary);
}

.hover-btn.delete:hover .hover-btn-icon {
    color: var(--error-red);
}

/* ============================================
   EDITOR
   ============================================ */

.editor-container {
    height: 100%;
    overflow: hidden;
    display: flex;
    justify-content: center;
}

.editor {
    width: 100%;
    max-width: 800px;
    height: 100%;
    padding: 20px 24px;
    background: var(--bg-dark);
    color: var(--text-primary);
    font-size: 15px;
    line-height: 1.6;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    overflow-y: auto;
    outline: none;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.editor:empty:before {
    content: attr(placeholder);
    color: var(--text-muted);
}

/* Text spans for model attribution */
.editor .text-human {
    color: var(--color-human);
}

.editor .text-model-1 {
    color: var(--color-model-1);
}

.editor .text-model-2 {
    color: var(--color-model-2);
}

.editor .text-model-3 {
    color: var(--color-model-3);
}

.editor .text-model-4 {
    color: var(--color-model-4);
}

.editor .text-model-5 {
    color: var(--color-model-5);
}

/* Editor Bottom Bar */
.editor-bottom-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-dark);
}

.editor-bar-spacer {
    flex: 1;
}

/* ============================================
   BOTTOM BAR
   ============================================ */

.bottom-bar {
    height: 32px;
    background-color: var(--bg-dark);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.bottom-left,
.bottom-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.bottom-center {
    display: flex;
    align-items: center;
    gap: 12px;
}

.footer-link {
    font-size: 11px;
    color: var(--text-muted);
    text-decoration: none;
}

.footer-link:hover {
    color: var(--accent-blue);
}

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

.stat {
    font-size: 11px;
    color: var(--text-secondary);
}

/* Ghost icon button (always round, background on hover) */
.btn-icon-ghost {
    width: 28px;
    height: 28px;
    background: transparent;
    border: none;
    border-radius: 50%;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: background 0.15s ease, color 0.15s ease;
}

.btn-icon-ghost:hover {
    background: var(--code-highlight);
    color: var(--text-primary);
}

.btn-action {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 4px 12px;
    background: var(--accent-blue);
    border: none;
    color: white;
    font-size: 12px;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.15s ease;
}

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

.btn-action.btn-cancel {
    background: var(--error-red);
}

.btn-action.btn-cancel:hover {
    background: #d43c3c;
}

.btn-icon-round {
    width: 28px;
    height: 28px;
    background: var(--bg-dark);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    transition: all 0.15s ease;
}

.btn-icon-round:hover {
    background: var(--code-highlight);
    border-radius: 50%;
    border-color: var(--accent-blue);
    color: var(--text-primary);
}

/* ============================================
   TOAST
   ============================================ */

.toast-container {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 1000;
}

.toast {
    background: var(--bg-lighter);
    border: 1px solid var(--error-red);
    max-width: 400px;
    opacity: 0;
    transform: translateX(100%);
    transition: opacity 0.2s ease, transform 0.2s ease;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateX(0);
    pointer-events: all;
}

.toast-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-dark);
}

.toast-header i {
    color: var(--error-red);
}

.toast-header strong {
    flex: 1;
    font-size: 12px;
    font-weight: 600;
}

.toast-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 18px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

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

.toast-body {
    padding: 12px;
    font-size: 12px;
    line-height: 1.5;
    color: var(--text-secondary);
}

/* ============================================
   INFO BUTTON & POPUP
   ============================================ */

.info-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0;
    margin-left: 6px;
    font-size: 12px;
    vertical-align: middle;
}

.info-btn:hover {
    color: var(--text-primary);
}

.popup-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
}

.popup-overlay.show {
    display: flex;
}

.popup {
    background: var(--bg-lighter);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    max-width: 500px;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
}

.popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 500;
}

.popup-close {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 20px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
}

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

.popup-body {
    padding: 16px;
    overflow-y: auto;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
}

.popup-body h4 {
    color: var(--text-primary);
    margin: 16px 0 8px 0;
    font-size: 13px;
    font-weight: 600;
}

.popup-body h4:first-child {
    margin-top: 8px;
}

.popup-body p {
    margin: 8px 0;
}

.popup-body code {
    display: block;
    background: var(--code-block);
    padding: 6px 10px;
    margin: 4px 0;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 12px;
    color: var(--color-model-1);
    border-radius: 2px;
}

.popup-body a {
    color: var(--accent-blue);
    text-decoration: none;
}

.popup-body a:hover {
    text-decoration: underline;
}

/* ============================================
   UTILITIES
   ============================================ */

.hidden {
    display: none !important;
}