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(width<=768px){.container,.card{padding:16px}.meta-grid{grid-template-columns:1fr;gap:4px}table th,table td{padding:8px 6px}.split-view{flex-direction:column}.split-left,.split-right{flex:auto;min-width:0;max-width:100%;position:static}.viewer-body{min-height:200px;max-height:60vh}}.login-overlay{background:var(--bg);z-index:999;justify-content:center;align-items:center;display:flex;position:fixed;inset:0}.login-box{background:var(--card);border-radius:var(--radius);width:360px;max-width:90vw;box-shadow:var(--shadow);text-align:center;padding:40px}.login-box h1{margin-bottom:24px;font-size:20px}.login-box input{border:1px solid var(--border);border-radius:var(--radius);text-align:center;outline:none;width:100%;padding:12px;font-size:16px}.login-box input:focus{border-color:var(--pri)}.login-box button{border-radius:var(--radius);background:var(--pri);color:#fff;cursor:pointer;border:none;width:100%;margin-top:16px;padding:12px;font-size:16px}.login-box button:hover:not(:disabled){background:var(--pri-h)}.login-err{color:var(--danger);margin-top:12px;font-size:14px}