:root{--bg:#0f1115;--card:#1a1d24;--accent:#7c5cff;--text:#f2f2f5;--muted:#9a9aa5}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif}main{max-width:900px;margin:0 auto;padding:32px 16px 80px}h1{font-size:28px;margin-bottom:4px}p.subtitle{color:var(--muted);margin-top:0;margin-bottom:28px}.card{background:var(--card);border-radius:16px;padding:24px;margin-bottom:24px}.upload-box{border:2px dashed #3a3d47;border-radius:12px;padding:32px;text-align:center;cursor:pointer}.upload-box img{max-width:240px;max-height:240px;border-radius:8px}.style-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(140px,1fr));grid-gap:12px;gap:12px;margin-top:12px}.style-card{border:2px solid #2c2f38;border-radius:12px;padding:12px;text-align:center;cursor:pointer;background:#14161c}.style-card.selected{border-color:var(--accent);background:#201a3a}.style-card .emoji{font-size:32px;display:block;margin-bottom:8px}button.primary{background:var(--accent);color:#fff;border:none;padding:14px 28px;border-radius:999px;font-size:16px;font-weight:600;cursor:pointer;margin-top:8px}button.primary:disabled{opacity:.5;cursor:not-allowed}.result-img{max-width:100%;border-radius:12px;margin-top:16px}.error-box{background:#3a1a1a;color:#ffb3b3;padding:12px 16px;border-radius:8px;margin-top:16px}a.download-btn{display:inline-block;margin-top:12px;color:var(--accent);text-decoration:none;font-weight:600}