main{flex-direction:column;flex:1;display:flex;gap:16px;padding:16px;overflow-y:auto}.card{flex:1;display:flex;flex-direction:column;gap:16px;min-width:0;background:var(--bg2);border:1px solid var(--border);border-radius:12px;padding:20px}.card-header{display:flex;align-items:center;justify-content:space-between;font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.card-label{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.control-group{display:flex;flex-direction:column;gap:8px}.control-group label{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}.control-group input,.control-group select{background:var(--bg3);border:1px solid var(--border);color:#fff;padding:10px 12px;border-radius:var(--r);font-size:14px;outline:none;transition:border-color .2s}.control-group input:focus,.control-group select:focus{border-color:var(--accent)}.control-group select{cursor:pointer;appearance:auto}textarea{background:var(--bg3);border:1px solid var(--border);color:#fff;padding:14px;border-radius:var(--r);outline:none;font-family:JetBrains Mono,monospace;font-size:13px;resize:vertical;min-height:180px;transition:border-color .2s,box-shadow .2s;line-height:1.5}textarea:focus{border-color:var(--accent);box-shadow:0 0 8px #00a8ff40}textarea[readonly]{color:var(--accent)}.section-label{font-size:11px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-top:8px}.hex-dump{background:var(--bg3);border:1px solid var(--border);border-radius:var(--r);padding:14px;font-family:JetBrains Mono,monospace;font-size:12px;color:var(--muted);word-break:break-all;line-height:1.6;max-height:200px;overflow-y:auto;white-space:pre-wrap}#derFile{background:var(--bg3);border:1px solid var(--border);border-radius:var(--r);padding:8px;color:#fff;font-size:13px;cursor:pointer}.hidden{display:none}@media(max-width:768px){main{flex-direction:column;overflow-y:auto}.card{flex:none}}