.tool-hero{text-align:center;max-width:680px;margin:0 auto;padding:3.5rem 1.5rem 2rem}.tool-hero h1{letter-spacing:-.03em;color:var(--text);margin-bottom:.6rem;font-family:Nunito,sans-serif;font-size:clamp(1.9rem,4.5vw,2.75rem);font-weight:900}.tool-hero p{color:var(--text-muted);font-size:.98rem;line-height:1.7}.workspace{max-width:960px;margin:0 auto;padding:0 1.5rem 1rem}#upload-area{text-align:center}.editor{gap:1.25rem;display:none}.editor.visible{grid-template-columns:1fr 340px;display:grid}.preview-pane{background:var(--card);border-radius:16px 18px 15px 17px/17px 15px 18px 16px;flex-direction:column;gap:.75rem;min-height:360px;padding:1.25rem;display:flex;box-shadow:0 2px 18px #1e293b12}.preview-pane canvas{object-fit:contain;border-radius:10px;width:100%;height:auto;max-height:460px;display:block}.preview-meta{color:var(--slate);letter-spacing:.03em;gap:1rem;font-family:JetBrains Mono,monospace;font-size:.7rem;display:flex}.preview-meta span{align-items:center;gap:4px;display:flex}.controls-pane{flex-direction:column;gap:1rem;display:flex}.ctrl-card{background:var(--card);border-radius:15px 17px 13px 16px/16px 14px 17px 15px;padding:1.4rem 1.35rem;box-shadow:0 2px 14px #1e293b0f}.ctrl-card h3{color:var(--text);margin-bottom:1rem;font-family:Nunito,sans-serif;font-size:.92rem;font-weight:800}.mode-toggle{background:#f1f5f9;border-radius:9px;margin-bottom:1.1rem;padding:3px;display:flex}.mode-toggle button{color:var(--slate);cursor:pointer;background:0 0;border:none;border-radius:7px;flex:1;padding:6px 10px;font-family:DM Sans,sans-serif;font-size:.82rem;font-weight:500;transition:background .18s,color .18s}.mode-toggle button.active{color:var(--text);background:#fff;box-shadow:0 1px 4px #1e293b1a}.dim-row{grid-template-columns:1fr auto 1fr;align-items:center;gap:.5rem;margin-bottom:.75rem;display:grid}.dim-input-wrap{flex-direction:column;gap:4px;display:flex}.dim-input-wrap label{color:var(--slate);letter-spacing:.05em;text-transform:uppercase;font-family:JetBrains Mono,monospace;font-size:.66rem}.dim-input-wrap input{border:1.5px solid var(--border);width:100%;color:var(--text);background:#f8fafc;border-radius:8px;outline:none;padding:8px 10px;font-family:DM Sans,sans-serif;font-size:.9rem;font-weight:500;transition:border-color .18s}.dim-input-wrap input:focus{border-color:var(--blue);background:#fff}.link-icon{border:1.5px solid var(--border);cursor:pointer;background:0 0;border-radius:7px;justify-content:center;align-items:center;width:28px;height:28px;margin-top:18px;transition:background .18s,border-color .18s;display:flex}.link-icon.locked{background:var(--blue);border-color:var(--blue)}.link-icon.locked svg path{stroke:#fff}.size-info{color:var(--slate);opacity:.7;margin-top:.25rem;font-family:JetBrains Mono,monospace;font-size:.7rem}.btn-download{background:var(--blue);color:#fff;cursor:pointer;border:none;border-radius:10px;justify-content:center;align-items:center;gap:8px;width:100%;padding:12px 22px;font-family:DM Sans,sans-serif;font-size:.9rem;font-weight:700;transition:background .18s,transform .18s,box-shadow .18s;display:flex;box-shadow:0 3px 12px #3b82f652}.btn-download:hover{background:var(--blue-dk);transform:translateY(-1px);box-shadow:0 5px 18px #3b82f661}.btn-download:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn-reset{border:1.5px solid var(--border);width:100%;color:var(--slate);cursor:pointer;background:0 0;border-radius:9px;padding:9px;font-family:DM Sans,sans-serif;font-size:.82rem;font-weight:500;transition:color .18s,border-color .18s}.btn-reset:hover{color:var(--text);border-color:var(--text)}.ad-row-300{justify-content:flex-end;max-width:880px;margin:0 auto;padding:0 1.5rem 4rem;display:flex}@media (width<=720px){.editor.visible{grid-template-columns:1fr}.controls-pane{order:-1}}