.drop-zone{border:2px dashed var(--border);border-radius:12px;padding:2.5rem;text-align:center;cursor:pointer;transition:all .2s;background:var(--bg-secondary);margin-bottom:1rem}.drop-zone:hover,.drop-zone.drag-over{border-color:var(--accent);background:var(--accent-dim)}input[type="file"]{display:none}.file-info{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1rem;margin-bottom:1rem}.info-item{background:var(--bg-secondary);padding:1rem;border-radius:8px;border:1px solid var(--border)}.info-item label{display:block;font-size:.75rem;color:var(--text-secondary);text-transform:uppercase;letter-spacing:.5px;margin-bottom:.25rem}.info-item value{display:block;font-family:'Consolas','Monaco',monospace;font-size:.95rem;color:var(--accent);word-break:break-word}.hex-controls{display:flex;gap:1rem;align-items:center;flex-wrap:wrap;margin-bottom:1rem}.hex-dump{background:var(--bg-secondary);border:1px solid var(--border);border-radius:8px;padding:1rem;font-family:'Consolas','Monaco',monospace;font-size:.85rem;line-height:1.6;overflow-x:auto;white-space:pre;max-height:500px;overflow-y:auto}.hex-line{display:flex;gap:1rem}.hex-offset{color:var(--text-secondary);min-width:7ch;user-select:none}.hex-bytes{color:var(--text-primary);min-width:39ch}.hex-ascii{color:var(--accent)}.hex-nonprint{color:var(--text-secondary)}.entropy-bar{height:8px;background:var(--bg-primary);border-radius:4px;margin-top:.5rem;overflow:hidden}.entropy-fill{height:100%;border-radius:4px;transition:width .5s ease}.entropy-low{background:var(--success)}.entropy-med{background:var(--warning)}.entropy-high{background:var(--error)}.alert-info{background:rgba(0,212,170,0.1);border:1px solid var(--accent);color:var(--accent);padding:1rem;border-radius:8px;margin-bottom:1rem;font-size:.9rem}@media(max-width:768px){.hex-line{flex-direction:column;gap:.25rem}.hex-bytes{min-width:auto}}