:root { --bg: #0f0f0f; --card: #1e1e1e; --primary: #7000ff; --text: #ffffff; }
body { font-family: 'Inter', sans-serif; background: var(--bg); color: var(--text); margin: 0; }
.center-flex { display: flex; justify-content: center; align-items: center; height: 100vh; }
.glass-card { background: var(--card); padding: 40px; border-radius: 20px; text-align: center; box-shadow: 0 10px 30px rgba(0,0,0,0.5); }
input { display: block; width: 100%; margin: 15px 0; padding: 12px; border-radius: 8px; border: 1px solid #333; background: #111; color: white; box-sizing: border-box; }
button { padding: 12px 25px; border-radius: 8px; border: none; cursor: pointer; background: var(--primary); color: white; font-weight: bold; transition: 0.3s; }
button:hover { opacity: 0.8; transform: scale(1.05); }

/* Editor Layout */
#editor-sidebar { width: 280px; background: #111; border-right: 1px solid #333; padding: 20px; z-index: 100; }
.tool-btn { width: 100%; margin-bottom: 10px; background: #333; }
.save-btn { width: 100%; background: #00c853; margin-top: 20px; }
.exit-btn { width: 100%; background: #ff1744; margin-top: 10px; }
select { width: 100%; padding: 10px; background: #222; color: white; border: 1px solid #444; border-radius: 5px; }
canvas { flex-grow: 1; outline: none; }