.study-board{width:min(600px,92vw);max-height:82dvh;overflow:auto;padding:22px;border:1px solid #92703c;border-radius:16px;background:#211a14;color:#f3e6cf}.study-board::backdrop{background:#0009}.study-board>div:first-child{display:flex;justify-content:space-between;align-items:center}.study-board h2{font-size:20px}.study-board button{background:#362b20;color:#f3e6cf;border:1px solid #987443;border-radius:8px;padding:8px 13px;margin:4px}.study-board table{width:100%;border-collapse:collapse}.study-board td{padding:12px 5px;border-bottom:1px solid #78604455}.study-board td:last-child{text-align:right;white-space:nowrap}.study-board small{display:block;color:#c0ae90;line-height:1.6;margin-top:16px}