:root{color:#17202a;font-synthesis:none;text-rendering:optimizelegibility;background:#f6f7f9;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button,input,select{font:inherit}button{cursor:pointer}button:disabled{cursor:not-allowed;opacity:.65}.app-shell{min-height:100vh;padding:32px}.workspace{width:min(1120px,100%);margin:0 auto}.masthead{justify-content:space-between;align-items:end;gap:20px;margin-bottom:24px;display:flex}.eyebrow{color:#35605a;letter-spacing:0;text-transform:uppercase;margin:0 0 6px;font-size:.78rem;font-weight:700}h1,h2{letter-spacing:0;margin:0}h1{font-size:2.2rem;line-height:1.1}h2{font-size:1.25rem}.limit{color:#45525f;white-space:nowrap;background:#fff;border:1px solid #d6dde4;border-radius:999px;padding:8px 12px}.tool-layout{grid-template-columns:260px minmax(0,1fr);align-items:start;gap:20px;display:grid}.operation-list,.tool-panel{background:#fff;border:1px solid #dfe5eb;border-radius:8px;box-shadow:0 12px 32px #17202a0f}.operation-list{gap:4px;padding:8px;display:grid}.operation-button{color:#2f3d4a;text-align:left;background:0 0;border:0;border-radius:6px;grid-template-columns:22px minmax(0,1fr);align-items:center;gap:10px;width:100%;padding:11px 12px;display:grid}.operation-button:hover{background:#f0f4f7}.operation-button.active{color:#123d34;background:#e7f4ef;font-weight:700}.tool-panel{padding:24px}.panel-heading{color:#17202a;align-items:center;gap:10px;margin-bottom:18px;display:flex}.panel-note{color:#5a6773;margin:-8px 0 18px;font-size:.9rem;line-height:1.4}.drop-zone{color:#394956;background:#fbfcfd;border:2px dashed #b9c5cf;border-radius:8px;place-items:center;gap:10px;width:100%;min-height:180px;display:grid}.drop-zone:hover,.drop-zone.dragging{background:#eef8f5;border-color:#2c7a68}.visually-hidden{clip:rect(0, 0, 0, 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}.file-list{gap:8px;margin-top:16px;display:grid}.file-row{background:#fff;border:1px solid #e2e8ee;border-radius:6px;grid-template-columns:22px minmax(0,1fr) auto auto;align-items:center;gap:10px;padding:10px 12px;display:grid}.file-remove{color:#5e6b76;background:#fff;border:1px solid #d9e0e7;border-radius:6px;justify-content:center;align-items:center;width:28px;height:28px;display:inline-flex}.file-remove:hover{color:#c0322b;background:#fff5f4;border-color:#c0322b}.file-row span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.file-row small{color:#5e6b76}.preview-panel{background:#f8fafb;border:1px solid #dfe5eb;border-radius:8px;margin-top:18px;padding:16px}.preview-heading{justify-content:space-between;align-items:start;gap:14px;margin-bottom:14px;display:flex}.preview-heading h3{letter-spacing:0;margin:0 0 4px;font-size:1rem}.preview-heading p{color:#5a6773;margin:0;font-size:.9rem}.preview-error{color:#8a2518;background:#fff1ef;border:1px solid #f1b5ad;border-radius:6px;padding:10px 12px}.preview-grid{grid-template-columns:repeat(auto-fill,minmax(132px,1fr));gap:14px;max-height:520px;padding:2px;display:grid;overflow:auto}.file-preview-grid{grid-template-columns:repeat(auto-fill,minmax(170px,1fr))}.preview-page{color:#263541;text-align:left;background:#fff;border:1px solid #d5dde5;border-radius:8px;gap:9px;width:100%;padding:10px;display:grid}.preview-page:disabled{cursor:default;opacity:1}.preview-page:not(:disabled):hover{border-color:#2c7a68;box-shadow:0 8px 18px #246b5c1f}.preview-page.selected{background:#e7f4ef;border-color:#246b5c;box-shadow:inset 0 0 0 2px #246b5c}.thumbnail-frame{aspect-ratio:3/4;background:#eef2f5;border:1px solid #e0e6ec;border-radius:5px;place-items:center;width:100%;display:grid;overflow:hidden}.thumbnail-frame img{object-fit:contain;background:#fff;width:100%;height:100%;display:block}.thumbnail-caption{grid-template-columns:18px minmax(0,1fr);align-items:center;gap:6px;min-height:20px;font-size:.86rem;font-weight:700;display:grid}.thumbnail-caption span{text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.field{color:#283744;gap:7px;margin-top:16px;font-weight:700;display:grid}.field input,.field select{color:#17202a;background:#fff;border:1px solid #cbd5df;border-radius:6px;width:100%;padding:11px 12px}.field input:focus,.field select:focus{border-color:#2c7a68;outline:3px solid #2c7a6833}.error-message{color:#8a2518;background:#fff1ef;border:1px solid #f1b5ad;border-radius:6px;margin-top:16px;padding:11px 12px}.actions{justify-content:flex-end;gap:10px;margin-top:20px;display:flex}.primary-button,.secondary-button{border:1px solid #0000;border-radius:6px;justify-content:center;align-items:center;gap:8px;padding:11px 15px;font-weight:700;display:inline-flex}.primary-button{color:#fff;background:#246b5c}.primary-button:hover:not(:disabled){background:#1c564a}.secondary-button{color:#2e3b47;background:#fff;border-color:#cfd8e1}.secondary-button:hover:not(:disabled){background:#f2f5f8}.spin{animation:.8s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}@media (width<=780px){.app-shell{padding:18px}.masthead{flex-direction:column;align-items:start}.tool-layout{grid-template-columns:1fr}.operation-list{grid-template-columns:repeat(2,minmax(0,1fr))}.preview-grid,.file-preview-grid{grid-template-columns:repeat(2,minmax(0,1fr));max-height:440px}.actions{flex-direction:column-reverse}.primary-button,.secondary-button{width:100%}}
