:root {
    --bg: #1e1e2e;
    --panel: #252537;
    --text: #cdd6f4;
    --accent: #ad8957;
    --border: #313244;
    --success: #a6e3a1;
    --danger: #fa3a3d;
    --warning: #f9e2af;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    overflow: hidden;
    user-select: none;
}

/* Canvas Container */
#viewport {
    width: 100%;
    height: 100%;
    overflow: hidden;
    cursor: grab;
    position: relative;
    background-image: radial-gradient(var(--border) 1px, transparent 1px);
    background-size: 20px 20px;
}
#viewport.panning { cursor: grabbing; }

/* The World */
#world {
    position: absolute;
    top: 0; left: 0;
    transform-origin: 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
    padding: 100px;
    /* width handled by JS */
    pointer-events: none;
}

/* SVG Item Wrapper */
.svg-card {
    pointer-events: auto;
    cursor: crosshair;
    background: rgba(255, 255, 255, 0.02);
    padding: 5px;
    border-radius: 8px;
    transition: border-color 0.2s, background 0.2s;
    width: 200px;
    height: 200px;
    flex: 0 0 200px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    position: relative;
}
.svg-card.selected {
    border-color: var(--accent);
    background: rgba(173, 137, 87, 0.1);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

/* Action Icons */
.card-action {
    position: absolute;
    width: 30px;
    height: 30px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
    box-shadow: 0 2px 5px rgba(0,0,0,0.5);
    z-index: 10;
    transition: all 0.2s;
}

.save-icon { top: -10px; right: -10px; opacity: 0; pointer-events: none; transform: scale(0.5); }
.svg-card.dirty .save-icon { opacity: 1; pointer-events: auto; transform: scale(1); }
.svg-card.dirty .save-icon:hover { background: var(--success); border-color: var(--success); color: #1e1e2e; }

.fix-icon { top: -10px; left: -10px; color: var(--warning); font-weight: bold; }
.fix-icon:hover { background: var(--warning); border-color: var(--warning); color: #1e1e2e; }

.svg-card svg { max-width: 100%; max-height: calc(100% - 20px); display: block; }
.svg-card .filename { display: none; margin-top: 5px; font-size: 10px; opacity: 0.5; max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex-shrink: 0; }
body.show-filenames .svg-card .filename { display: block; }

/* Palette */
#palette-panel {
    position: fixed; top: 20px; left: 20px;
    background: var(--panel); padding: 15px; border-radius: 12px;
    border: 1px solid var(--border); box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    z-index: 100; width: 220px;
}
.palette-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-top: 10px; margin-bottom: 15px;
}
.color-swatch {
    aspect-ratio: 1; border-radius: 4px; cursor: pointer; border: 2px solid transparent; position: relative;
    transition: transform 0.1s;
}
.color-swatch:hover { transform: scale(1.05); }
.color-swatch.active { border-color: white; transform: scale(1.1); }
.color-swatch:hover::after {
    content: attr(data-name); position: absolute; bottom: 105%; left: 50%; transform: translateX(-50%);
    background: black; color: white; padding: 2px 5px; font-size: 10px;
    border-radius: 3px; pointer-events: none; white-space: nowrap; z-index: 20;
}
.key-number {
    position: absolute; top: 2px; left: 2px; font-size: 9px; font-weight: bold;
    color: rgba(255,255,255,0.8); text-shadow: 0 1px 2px rgba(0,0,0,0.8); pointer-events: none;
}

/* Tools & Inputs */
.tools {
    display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
    border-top: 1px solid var(--border); padding-top: 10px;
}
.input-group { grid-column: span 2; display: flex; align-items: center; gap: 5px; margin-bottom: 5px; }
.input-group label { font-size: 11px; opacity: 0.7; }

.ar-input {
    flex: 1; background: rgba(0,0,0,0.2); border: 1px solid var(--border);
    color: var(--text); padding: 4px 8px; border-radius: 4px; font-size: 12px;
    text-align: center;
}

button.tool-btn {
    background: rgba(255,255,255,0.05); border: 1px solid transparent; color: var(--text);
    padding: 8px; border-radius: 4px; cursor: pointer; font-size: 12px;
    display: flex; align-items: center; justify-content: center; gap: 5px; transition: all 0.2s;
}
button.tool-btn:hover { background: rgba(255,255,255,0.1); }
button.tool-btn.primary { background: var(--success); color: #1e1e2e; font-weight: bold; grid-column: span 2; }
button.tool-btn.primary:hover { background: #8cd688; }
button.tool-btn.active { background: var(--danger); color: white; border-color: var(--danger); }

/* Modal */
.modal-overlay {
    position: fixed; top: 0; left: 0; width: 100%; height: 100%;
    background: rgba(0,0,0,0.7); display: flex; align-items: center; justify-content: center;
    z-index: 1000; opacity: 0; pointer-events: none; transition: opacity 0.2s;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal {
    background: var(--panel); border: 1px solid var(--border); padding: 20px;
    border-radius: 12px; width: 400px; max-width: 90%;
    box-shadow: 0 20px 50px rgba(0,0,0,0.5);
}
.modal h2 { margin-top: 0; color: var(--text); font-size: 1.2rem; }
.modal textarea {
    width: 100%; height: 150px; background: rgba(0,0,0,0.3); border: 1px solid var(--border);
    color: var(--text); padding: 10px; border-radius: 4px; font-family: monospace; resize: vertical;
}

/* Palette Editor UI */
.palette-editor-ui {
    background: rgba(0,0,0,0.2);
    border-radius: 8px;
    padding: 10px;
    border: 1px solid var(--border);
}

.palette-list {
    max-height: 200px;
    overflow-y: auto;
    margin-bottom: 10px;
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.palette-row {
    display: flex;
    align-items: center;
    gap: 10px;
    background: rgba(255,255,255,0.05);
    padding: 5px 10px;
    border-radius: 4px;
}

.color-preview {
    width: 20px; height: 20px;
    border-radius: 4px;
    border: 1px solid rgba(255,255,255,0.2);
}

.color-name {
    flex: 1;
    font-weight: bold;
    font-size: 13px;
}

.color-hex {
    font-family: monospace;
    font-size: 12px;
    opacity: 0.7;
}

.palette-add-row {
    display: flex;
    gap: 5px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}

.input-sm {
    flex: 1;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 5px 8px;
    border-radius: 4px;
    font-size: 13px;
}

.input-color {
    width: 40px;
    height: 30px;
    padding: 0;
    border: none;
    background: none;
    cursor: pointer;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text);
    cursor: pointer;
    opacity: 0.6;
    padding: 2px 5px;
    border-radius: 4px;
}
.icon-btn:hover { opacity: 1; background: rgba(255,255,255,0.1); }
.delete-btn { color: var(--danger); font-size: 16px; line-height: 1; }

.palette-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 5px;
}

/* Status Bar */
#status-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--panel);
    border-top: 1px solid var(--border);
    padding: 4px 10px;
    font-size: 11px;
    color: var(--text);
    z-index: 50;
    opacity: 0.9;
    display: flex;
    align-items: center;
    justify-content: space-between;
    box-shadow: 0 -2px 10px rgba(0,0,0,0.1);
}

/* Modes */
body.mode-delete svg { cursor: crosshair; }
body.mode-delete svg path:hover, body.mode-delete svg rect:hover, 
body.mode-delete svg circle:hover, body.mode-delete svg ellipse:hover, body.mode-delete svg polygon:hover {
    stroke: var(--danger); cursor: crosshair; opacity: 0.5;
}

/* Normal Mode Hover Highlight */
body:not(.mode-delete):not(.mode-pan) .svg-card svg :is(path, rect, circle, ellipse, polygon, polyline, line):hover {
    stroke: var(--accent);
    stroke-width: 1px;
    vector-effect: non-scaling-stroke;
    opacity: 0.8;
    cursor: crosshair;
}

body.mode-pan { cursor: grab; }
body.mode-pan #viewport { cursor: grab; }
body.mode-pan.panning, body.mode-pan.panning #viewport { cursor: grabbing; }
body.mode-pan .svg-card { pointer-events: none; }

#backend-indicator { font-size: 10px; text-align: center; margin-top: 10px; opacity: 0.4; }