:root{--bg:#f4efe6;--card:#fffaf2;--ink:#2c241c;--accent:#72512d;--line:#cdb795}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:Tahoma,Arial,sans-serif;line-height:1.8}header{background:#34291f;color:#fff;padding:18px;text-align:center}nav a{display:inline-block;margin:4px;padding:8px 12px;background:#fff;color:#2c241c;border-radius:8px;text-decoration:none}main{max-width:1050px;margin:auto;padding:20px}.card{background:var(--card);border:1px solid #d7c2a2;border-radius:14px;padding:20px;margin:15px auto;max-width:1050px}label{display:block;font-weight:bold;margin:10px 0}input,select,textarea{display:block;width:100%;max-width:700px;padding:10px;font:inherit;border:1px solid #8d775c;border-radius:7px;background:#fff}button{font:inherit;padding:9px 14px;border:2px solid var(--accent);border-radius:8px;background:#fff;cursor:pointer;margin:4px}.ok,.error,.notice{padding:12px;margin:12px 0;border-right:5px solid}.ok{background:#eef8ef;border-color:#3f704d}.error{background:#fff0ee;border-color:#9a403a}.notice{background:#fff4df;border-color:#9b6c32}table{width:100%;border-collapse:collapse}th,td{border:1px solid var(--line);padding:8px;text-align:right}.certificate{position:relative;background:#fff;width:min(1120px,100%);aspect-ratio:1.414/1;margin:auto;overflow:hidden}.certificate>img{position:absolute;inset:0;width:100%;height:100%}.certitem{position:absolute;transform:translate(-50%,-50%);font-weight:bold;white-space:nowrap}.actions{display:flex;gap:5px;flex-wrap:wrap}@media print{body>*:not(main),main>*:not(.certificate){display:none}.certificate{width:100%;}}