:root{
  font-family:ui-rounded,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  color:#17392d;background:#0d513b;
  --felt:#0d513b;--ivory:#fffdf4;--ivory-deep:#f4eedc;--jade:#087454;
  --jade-dark:#075c44;--red:#b63a32;--ink:#17392d;--muted:#66766f
}
*{box-sizing:border-box}
body{margin:0;min-height:100vh;background-color:var(--felt);background-image:radial-gradient(circle at 20% 15%,#ffffff0a 0 1px,transparent 1.5px),radial-gradient(circle at 75% 70%,#0000000b 0 1px,transparent 1.5px),linear-gradient(135deg,#ffffff05,transparent 45%,#00000008);background-size:17px 17px,23px 23px,100% 100%}
.card{position:relative;max-width:620px;margin:auto;min-height:100vh;padding:28px 20px 42px;overflow:hidden;background:var(--ivory);box-shadow:inset 0 0 0 1px #e4ddc8}
.card:after{content:"";position:absolute;inset:auto 0 0;height:7px;background:repeating-linear-gradient(90deg,var(--jade) 0 24px,var(--red) 24px 30px,var(--ivory-deep) 30px 48px)}
h1{display:flex;align-items:center;gap:11px;font-size:1.6rem;margin:0 0 20px;letter-spacing:-.02em}
h1:before{content:"中";display:grid;place-items:center;width:39px;height:45px;flex:0 0 auto;border:1px solid #ddd3bb;border-bottom:4px solid #c9bea3;border-radius:7px;color:var(--red);background:#fffef8;box-shadow:0 2px 5px #17392d20;font-family:Georgia,"Times New Roman",serif;font-size:1.45rem;font-weight:800}
h2{margin-top:26px;letter-spacing:-.015em}
.date{font-size:1.45rem;font-weight:780;color:var(--ink)}
.count{font-size:3.2rem;font-weight:880;line-height:1;margin:28px 0 5px;color:var(--jade-dark)}
.muted{color:var(--muted)}.status{font-size:1.15rem;margin:8px 0}
.button,button{display:block;width:100%;min-height:56px;border:0;border-bottom:3px solid #054b37;border-radius:12px;padding:14px 18px 12px;background:var(--jade);color:#fff;font-size:1.05rem;font-weight:760;text-align:center;text-decoration:none;cursor:pointer;margin:14px 0;box-shadow:0 3px 8px #0b46331c}
button:hover{background:var(--jade-dark)}
button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #d8a83c;outline-offset:2px}
.secondary{background:#e7eee7;color:var(--jade-dark);border-bottom-color:#c8d7cc;box-shadow:none}.secondary:hover{background:#dae7dd}.danger{background:var(--red);border-bottom-color:#842822}
input,select{width:100%;min-height:48px;font:inherit;padding:13px 14px;border:1px solid #b8c6bc;border-bottom:3px solid #d5cdb9;border-radius:9px;margin:6px 0 14px;background:#fffefa;color:var(--ink)}
label{font-weight:680}
.players{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:9px;list-style:none;padding:0;border:0}
.players li{min-width:0;padding:12px 13px;border:1px solid #ded7c5;border-bottom:3px solid #ccc2a9;border-radius:9px;background:#fffef8;box-shadow:0 2px 4px #17392d0c;overflow-wrap:anywhere}
.players li:before{content:"●";color:var(--red);font-size:.58em;margin-right:8px;vertical-align:2px}.players li.muted{grid-column:1/-1}.players form{margin-top:8px}.players button{min-height:42px;margin:5px 0 0}
.notice{padding:13px 14px;border:1px solid #e0d2a8;border-left:5px solid #c79330;border-radius:9px;background:#f8efd6;margin:15px 0}.notice.ok{border-color:#b8d8c8;border-left-color:var(--jade);background:#e3f1e9}
.grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.grid .button{margin:2px 0}.small{font-size:.88rem}
details{margin-top:24px;border-top:1px solid #d8d1bf;padding-top:16px}summary{font-weight:730;cursor:pointer;color:var(--jade-dark)}
table{width:100%;border-collapse:collapse}td,th{text-align:left;padding:9px 3px;border-bottom:1px solid #ddd5c2}th{color:var(--jade-dark)}
@media(max-width:380px){.players{grid-template-columns:1fr}}
@media(min-width:700px){body{padding:1px 0 32px}.card{min-height:auto;margin:32px auto;border-radius:18px;box-shadow:0 12px 38px #032a1f66,inset 0 0 0 1px #e4ddc8;padding:38px}}