:root {
    --bg-dark: #1e1e1e;
    --bg-panel: #252526;
    --bg-sidebar: #333333;
    --accent: #007acc;
    --text-color: #d4d4d4;
    --border-color: #444;
    --gold: #ffd700;
}

body {
    margin: 0; padding: 0;
    font-family: 'Segoe UI', sans-serif;
    background: var(--bg-dark);
    color: var(--text-color);
    display: flex; flex-direction: column;
    height: 100vh; overflow: hidden;
}

#top-bar {
    background: var(--bg-panel); padding: 10px 20px;
    display: flex; align-items: center; gap: 20px;
    border-bottom: 1px solid var(--border-color);
}

.main-actions { display: flex; gap: 10px; }
.logo { font-weight: bold; font-size: 18px; color: #fff; }
.pro-badge { color: var(--gold); font-size: 10px; border: 1px solid var(--gold); padding: 2px 5px; border-radius: 3px; }

#main { display: flex; flex: 1; overflow: hidden; }

#editor-container { flex: 1; display: flex; flex-direction: column; min-width: 300px; }
textarea {
    flex: 1; background: var(--bg-dark); color: #9cdcfe;
    font-family: 'Consolas', monospace; padding: 15px;
    border: none; resize: none; font-size: 14px; outline: none;
    line-height: 1.6; border-right: 1px solid var(--border-color);
}

#viewer-container { flex: 2; background: #000; position: relative; }
canvas { width: 100%; height: 100%; cursor: crosshair; }

#right-panels {
    width: 240px; background: var(--bg-sidebar);
    display: flex; flex-direction: column;
    border-left: 1px solid var(--border-color);
}

.panel-section {
    padding: 15px; border-bottom: 1px solid var(--border-color);
    display: flex; flex-direction: column;
}

#tools-panel { border-bottom: none; flex: 1; }

h4 { margin-top: 0; color: #888; text-transform: uppercase; font-size: 11px; letter-spacing: 1px; margin-bottom: 15px; }

.tools-grid {
    display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
}

.layer-item {
    background: #444; margin-bottom: 10px; padding: 12px;
    border-radius: 4px; font-size: 12px; border-left: 4px solid var(--accent);
}

button {
    background: var(--accent); color: white; border: none;
    padding: 8px 12px; border-radius: 3px; cursor: pointer; font-size: 12px;
}
button.secondary { background: #555; }
button:hover { filter: brightness(1.2); }
.btn-success { background: #28a745; }
.add-btn { background: transparent; border: 1px dashed #666; color: #aaa; margin-top: 5px; }