:root{font-family:system-ui,sans-serif;color:#0f172a;background:#f8fafc;line-height:1.5}*{box-sizing:border-box}[hidden]{display:none!important}main{max-width:1000px;margin:30px auto;padding:0 20px}header,header>div,.actions{display:flex;align-items:center;gap:14px}header{justify-content:space-between}h1{font-size:24px}.mark{background:#0f172a;color:white;padding:10px;border-radius:10px;font-weight:800}section{background:white;border:1px solid #e2e8f0;border-radius:16px;padding:24px;margin:20px 0}form{display:grid;gap:15px;max-width:520px}label{display:grid;gap:6px;font-weight:600}input,select,button{font:inherit;border:1px solid #cbd5e1;padding:10px 12px;border-radius:9px}button{background:#0f172a;color:white;cursor:pointer}button:disabled{opacity:.5;cursor:wait}summary{cursor:pointer;padding:12px 0}#status{white-space:pre-wrap;padding:12px;border-radius:9px;background:#e2e8f0}#status.error{background:#fee2e2;color:#991b1b}.table-wrap{overflow:auto;margin:20px 0}table{width:100%;border-collapse:collapse;min-width:650px}td,th{text-align:left;padding:12px;border-bottom:1px solid #e2e8f0}.actions{flex-wrap:wrap}details form{margin:12px 0}