:root{--bg: #0e0e12;--bg-card: #18181f;--bg-input: #23232c;--border: #2c2c38;--fg: #f4f4f5;--fg-muted: #a0a0aa;--primary: #6366f1;--primary-hover: #4f46e5;--success: #10b981}*{box-sizing:border-box}body{margin:0;font-family:Inter,-apple-system,system-ui,sans-serif;background:var(--bg);color:var(--fg)}.shell{display:grid;grid-template-columns:360px 1fr;height:100vh}.config-panel{background:var(--bg-card);border-right:1px solid var(--border);overflow-y:auto;padding:1.5rem}.preview-panel{display:flex;flex-direction:column;background:var(--bg)}.preview-toolbar{display:flex;justify-content:space-between;align-items:center;padding:.75rem 1.5rem;border-bottom:1px solid var(--border)}.viewport-toggle button{background:var(--bg-input);border:1px solid var(--border);color:var(--fg-muted);padding:.35rem .75rem;cursor:pointer;border-radius:6px;margin-right:.25rem}.viewport-toggle button.active{background:var(--primary);color:#fff;border-color:var(--primary)}.preview-frame{flex:1;display:grid;place-items:center;background:#1a1a22;padding:2rem;overflow:auto}.preview-frame iframe{background:#fff;border:0;border-radius:12px;box-shadow:0 8px 32px #0006;transition:width .3s,height .3s}h1,h2,h3{margin:0 0 .5rem}.section{margin-bottom:2rem}.section-label{font-size:.75rem;text-transform:uppercase;color:var(--fg-muted);margin-bottom:.5rem;letter-spacing:.05em}.preset-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:.5rem}.preset-card{background:var(--bg-input);border:2px solid transparent;border-radius:8px;padding:.75rem;cursor:pointer;text-align:center;font-size:.85rem;color:var(--fg)}.preset-card.active{border-color:var(--primary)}.palette-grid{display:grid;grid-template-columns:1fr 1fr;gap:.5rem}.palette-card{background:var(--bg-input);border:2px solid transparent;border-radius:8px;padding:.65rem;cursor:pointer}.palette-card.active{border-color:var(--primary)}.palette-swatches{display:flex;gap:4px;margin-bottom:.35rem}.palette-swatches span{width:18px;height:18px;border-radius:4px}.palette-name{color:var(--fg-muted);font-size:.75rem}.input,.textarea{width:100%;background:var(--bg-input);border:1px solid var(--border);color:var(--fg);padding:.55rem .75rem;border-radius:6px;font-family:inherit;font-size:.9rem}.modulo-row{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0;border-bottom:1px solid var(--border)}.modulo-row .meta{font-size:.8rem;color:var(--fg-muted)}.modulo-row input[type=checkbox]{margin-right:.5rem}.summary{background:var(--bg-input);padding:1rem;border-radius:8px;margin-top:1.5rem}.summary .total{font-size:2rem;font-weight:700;color:var(--primary)}.btn{background:var(--primary);color:#fff;padding:.85rem 1.5rem;border:none;border-radius:8px;font-weight:600;width:100%;cursor:pointer;margin-top:1rem}.btn:hover{background:var(--primary-hover)}