:root{--bg:#0a0b10;--panel:#13141a;--border:rgba(255,255,255,.08);--text:#e8eaf2;--muted:rgba(232,234,240,.5);--accent:#7c3aed;--green:#22c55e;--rose:#ef4444;--teal:#06d6a0;--gold:#f5c842}
*{box-sizing:border-box;margin:0;padding:0}
body{font-family:'Inter',sans-serif;background:var(--bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column}
a{text-decoration:none;color:inherit}
.header{padding:16px 24px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:12px}
.header h1{font-size:1.1rem;font-weight:700;color:white;flex:1}
.wrap{max-width:1100px;margin:0 auto;padding:24px;width:100%;display:grid;grid-template-columns:1fr 320px;gap:20px}
@media(max-width:800px){.wrap{grid-template-columns:1fr}}
.preview-area{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:16px;text-align:center}
.preview-area canvas{max-width:100%;border:1px solid var(--border);border-radius:8px}
.sidebar{display:flex;flex-direction:column;gap:12px}
.sidebar-section{background:var(--panel);border:1px solid var(--border);border-radius:12px;padding:14px}
.sidebar-section h3,.sidebar-section h2{font-size:.85rem;font-weight:700;margin-bottom:10px}
.form-group{margin-bottom:10px}
.form-group label{display:block;font-size:.78rem;color:var(--muted);margin-bottom:4px}
.form-group input,.form-group select,.form-group textarea{width:100%;background:var(--panel);border:1px solid var(--border);color:var(--text);padding:8px;border-radius:6px;font-size:.85rem}
.form-group textarea{min-height:60px;resize:vertical}
.btn{padding:10px 18px;border-radius:8px;border:none;font-weight:700;font-size:.85rem;cursor:pointer;transition:all .15s}
.btn-primary{background:var(--accent);color:white}
.btn-primary:hover{filter:brightness(1.15)}
.btn-secondary{background:rgba(255,255,255,.06);color:var(--text);border:1px solid var(--border)}
.toast{position:fixed;bottom:28px;left:50%;transform:translateX(-50%);background:var(--panel);border:1px solid var(--accent);color:var(--accent);padding:6px 16px;border-radius:8px;font-size:.78rem;opacity:0;transition:opacity .3s;pointer-events:none;z-index:900}