.opening-dialog { border: 1px solid #c79c54; padding: 0; border-radius: 18px; width: min(460px,calc(100% - 32px)); max-height: calc(100dvh - 32px); background: #fff0ce; color: #493421; box-shadow: 0 24px 90px #0008; }
.opening-dialog::backdrop { background: #031c35b8; backdrop-filter: blur(4px); }
.opening-paper { position: relative; isolation: isolate; text-align: center; background: #fff0ce; color: #493421; border-radius: 16px; padding: 32px 22px; font-family: "Noto Sans KR","Malgun Gothic",sans-serif; line-height: 1.75; word-break: keep-all; }
.opening-paper::before { content:""; position:absolute; inset:0; background:url('./img/poster-map.png') center / cover; opacity:.2; z-index:-1; border-radius:inherit; }
.opening-paper h1,.opening-paper h2 { color:#704316; font-size:clamp(22.5px,5.5vw,29px); line-height:1.5; margin:8px 0 14px; font-weight:800; text-wrap:balance; text-shadow:none; }
.opening-kicker { font-size:14.5px; font-weight:700; color:#866132; margin:0; }
.opening-date { display:block; color:#754619; font-size:clamp(27px,7vw,35px); line-height:1.5; padding:18px 0; margin:18px 0; border-block:1px solid #b98c4d; font-weight:900; }
.opening-copy { font-size:17.5px; }
.opening-small { font-size:14.5px; color:#705a3f; margin:16px 0; }
.opening-confirm { display:block; width:100%; margin-top:24px; padding:13px 20px; border:1px solid #cc953f; border-radius:12px; background:linear-gradient(#fff0b8,#efb649 55%,#cc8b25); color:#352006; font:inherit; font-weight:800; cursor:pointer; }
.opening-confirm:focus-visible { outline:3px solid #0759a6; outline-offset:3px; }
.preview-notice { margin:0; padding:10px 16px; background:#ffedbc; color:#62421c; text-align:center; font-size:15.5px; font-weight:700; }
.opening-paper .btn { display:block; margin-top:24px; text-decoration:none; }