:root{font:16px/1.5 system-ui;color:#24364a;background:#f3f6fb}*{box-sizing:border-box}body{margin:0}header{padding:18px 22px;background:#245db5;color:white}header span{display:block;font-size:13px}main{max-width:740px;margin:auto;padding:18px}section,.student{background:white;border:1px solid #dce3ed;border-radius:14px;padding:18px;margin-bottom:16px}h1{font-size:23px;margin:8px 0}h2{font-size:18px}label{display:block;margin:12px 0}input,select,button{width:100%;min-height:46px;border-radius:9px;border:1px solid #b7c7d9;padding:10px;font:inherit}input[type=checkbox]{width:24px;min-height:24px;vertical-align:middle}button{background:#245db5;color:white;font-weight:600;margin:8px 0;cursor:pointer}button:disabled{opacity:.5}.soft{background:#eef3fa;color:#264b78}.bar{display:flex;align-items:center;gap:12px}.bar button{width:auto;margin-left:auto}small{color:#566b83}#notice{padding:12px;border-radius:8px;background:#e1edff}#events>div{padding:10px;border-top:1px solid #dce3ed}#events button{width:auto;padding:6px 12px;font-size:13px}p{color:#4b6077}[hidden]{display:none!important}