:root{--navy:#061b24;--teal:#0e5a68;--blue:#124a70;--accent:#8fb8c7;--paper:#fff;--bg:#eaf0f2;--line:#d5e1e5;--muted:#627781}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--navy);font-family:Tahoma,Arial,sans-serif}.app{min-height:100vh;display:grid;grid-template-columns:285px minmax(0,1fr)}button,input,select,textarea{font:inherit}.sidebar{background:var(--navy);color:#fff;padding:24px;display:flex;flex-direction:column;gap:20px}.brand{display:flex;align-items:center;gap:12px}.brand img{width:52px;height:52px;object-fit:contain;background:#fff;border-radius:10px;padding:5px}.brand b,.brand small{display:block}.brand small{margin-top:3px;color:var(--accent)}nav{display:grid;gap:8px}nav button,.sidebar-actions button{width:100%;border:1px solid #294650;border-radius:9px;background:transparent;color:#fff;padding:11px 12px;text-align:right;cursor:pointer}nav button[aria-current=true]{background:var(--teal);border-color:var(--accent)}.sidebar-actions{display:grid;gap:8px;margin-top:auto}main{min-width:0}.topbar{display:flex;align-items:center;justify-content:space-between;padding:22px 28px}.topbar h1{margin:0;font-size:24px}.topbar p{margin:5px 0 0;color:var(--muted)}.workspace{display:grid;grid-template-columns:minmax(320px,430px) minmax(600px,800px);justify-content:center;gap:24px;padding:0 24px 30px}.panel{background:#fff;border-radius:16px;padding:22px;box-shadow:0 8px 30px #061b2414}#documentForm{display:grid;gap:12px}label{display:grid;gap:6px;color:#3b555f;font-size:12px;font-weight:bold}input,select,textarea{width:100%;border:1px solid #b7cbd2;border-radius:8px;background:#fff;padding:10px;color:var(--navy)}textarea{min-height:78px;resize:vertical}input:focus,textarea:focus,select:focus{outline:3px solid #8fb8c755;border-color:var(--teal)}.export{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-top:18px}.export .secondary{grid-column:1/-1}button{border-radius:8px;padding:10px 13px;border:0;cursor:pointer}.primary{background:var(--teal);color:#fff}.secondary{background:#dce9ed;color:var(--navy)}button:disabled{opacity:.55;cursor:not-allowed}.error{padding:10px;margin-bottom:12px;background:#fff0eb;border-right:4px solid #b64727;color:#8c2f18;font-size:12px}.preview{background:#fff;min-height:1123px;box-shadow:0 12px 40px #061b2425}.doc-head{background:var(--navy);color:#fff;padding:28px 38px;display:flex;justify-content:space-between}.doc-head img{width:72px;height:72px;object-fit:contain;background:#fff;border-radius:8px;padding:5px}.doc-head h2{margin:10px 0 0;font-size:25px}.doc-head small{color:var(--accent)}.doc-meta{display:grid;grid-template-columns:1fr 1fr;background:#f1f5f7;padding:16px 38px}.doc-meta b{display:block;font-size:11px;color:var(--teal)}.doc-body{padding:28px 38px;line-height:1.85}.doc-body h3{font-size:17px;color:var(--blue);border-bottom:1px solid var(--line);padding-bottom:7px}.doc-row{display:grid;grid-template-columns:170px 1fr;gap:15px;border-bottom:1px solid var(--line);padding:8px 0}.doc-row b{color:var(--muted)}.doc-sign{border-top:1px solid var(--line);margin-top:28px;padding-top:16px;min-height:105px}.doc-sign img{display:block;max-width:130px;max-height:55px;object-fit:contain}.doc-footer{background:var(--navy);color:var(--accent);padding:12px 38px;font-size:11px}.history{margin-top:24px;border-top:1px solid var(--line);padding-top:16px}.history h2{font-size:16px}.history-item{border:1px solid var(--line);border-radius:8px;padding:10px;margin-top:8px;font-size:12px}.history-item button{padding:5px 8px;margin-top:6px;margin-left:5px;background:#e5eff2}dialog{border:0;border-radius:14px;padding:0;width:min(470px,90vw);box-shadow:0 20px 70px #0005}dialog::backdrop{background:#061b2499}dialog form{padding:20px;display:grid;gap:12px}.dialog-head{display:flex;justify-content:space-between;align-items:center}.dialog-head h2{margin:0}.dialog-head button{font-size:25px;background:transparent}.dialog-head+label{margin-top:5px}#toast{position:fixed;left:22px;bottom:22px;background:var(--navy);color:#fff;padding:11px 16px;border-radius:9px;opacity:0;pointer-events:none;transition:.2s}#toast.show{opacity:1}@media(max-width:1050px){.app{display:block}.sidebar{padding:15px}.brand{margin-bottom:5px}nav{grid-template-columns:repeat(3,1fr)}.sidebar-actions{grid-template-columns:repeat(3,1fr)}.workspace{grid-template-columns:1fr}.preview{min-height:auto}.topbar{padding:18px}}@media(max-width:620px){nav,.sidebar-actions{grid-template-columns:1fr 1fr}.workspace{padding:0 10px 20px}.topbar{align-items:flex-start;gap:12px}.topbar h1{font-size:20px}.preview{overflow:auto}.doc-head,.doc-meta,.doc-body,.doc-footer{padding-inline:22px}.export{grid-template-columns:1fr}}