:root{font-family:system-ui,sans-serif;color:#172033;background:#f5f7fb}*{box-sizing:border-box}body{margin:0}header{display:flex;gap:20px;align-items:center;flex-wrap:wrap;padding:14px 24px;background:#172033;color:#fff}header nav{display:flex;gap:12px;flex-wrap:wrap}header a{color:#fff;text-decoration:none}.switch{margin-left:auto;display:flex;gap:6px}.container{max-width:1200px;margin:24px auto;padding:0 18px}.narrow{max-width:720px}.card{background:#fff;padding:18px;border-radius:12px;box-shadow:0 4px 18px #0001;margin-bottom:18px}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:14px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px}.cards .card strong{font-size:2rem}label{display:flex;flex-direction:column;gap:6px;margin-bottom:12px}input,select,textarea,button{padding:10px;border:1px solid #cbd3df;border-radius:8px;font:inherit}button{background:#2458d6;color:white;border:0;cursor:pointer}table{width:100%;border-collapse:collapse;background:white}th,td{padding:10px;border-bottom:1px solid #e5e9f0;text-align:left}.alert{padding:12px;border-radius:8px;margin-bottom:14px}.error{background:#ffe5e5;color:#8b1e1e}.success{background:#e3f7e8;color:#155f2a}fieldset{border:1px solid #d6dce6;border-radius:8px}