:root{--bg: #f6f7f9;--surface: #ffffff;--text: #1c2430;--muted: #5d6877;--border: #dde2e8;--accent: #c8102e;--link: #0b5cad;font-family:Hiragino Sans,Noto Sans JP,Yu Gothic UI,system-ui,sans-serif;line-height:1.7;color:var(--text);background:var(--bg)}@media(prefers-color-scheme:dark){:root{--bg: #12161c;--surface: #1b212a;--text: #e6eaf0;--muted: #9aa5b4;--border: #2d3644;--accent: #ff5a70;--link: #7db8f5}}*{box-sizing:border-box}body{margin:0}a{color:var(--link)}h1{font-size:1.6rem;margin:0 0 .75rem}h2{font-size:1.15rem;margin:0}.layout{min-height:100vh;display:flex;flex-direction:column}.site-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;padding:.75rem 1rem;background:var(--surface);border-bottom:3px solid var(--accent)}.site-title{font-weight:700;font-size:1.2rem;color:var(--text);text-decoration:none}.site-header nav{display:flex;gap:1rem}.site-header nav a{color:var(--text);text-decoration:none;padding:.25rem 0}.site-header nav a.active{border-bottom:2px solid var(--accent)}.site-main{flex:1;width:100%;max-width:880px;margin:0 auto;padding:1.5rem 1rem 3rem}.site-main>h2{margin:2rem 0 .75rem}.site-footer{padding:1rem;text-align:center;color:var(--muted);font-size:.85rem}.muted{color:var(--muted)}.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:1rem;margin-top:1.5rem}.card{display:block;padding:1rem 1.25rem;background:var(--surface);border:1px solid var(--border);border-radius:8px;color:var(--text);text-decoration:none}.card:hover,.card:focus-visible{border-color:var(--accent)}.card p{margin:.25rem 0 0}.card-head{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem .75rem}.card-head h1{margin:0}.tournament-list{list-style:none;margin:0;padding:0;display:grid;gap:.75rem}.badge{display:inline-block;padding:.05rem .6rem;border:1px solid var(--border);border-radius:999px;font-size:.8rem;white-space:nowrap;color:var(--muted)}.badge-recruiting,.badge-ongoing{border-color:var(--accent);color:var(--accent);font-weight:700}.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:.75rem;margin:1rem 0 0}.facts dt{color:var(--muted);font-size:.8rem}.facts dd{margin:0;font-weight:700}.table-scroll{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:8px}table{width:100%;border-collapse:collapse;font-variant-numeric:tabular-nums}th,td{padding:.6rem .9rem;text-align:right;white-space:nowrap;border-bottom:1px solid var(--border)}th:first-child{text-align:left}thead th{font-size:.8rem;color:var(--muted)}tbody th{font-weight:400}tbody tr:last-child th,tbody tr:last-child td{border-bottom:none}.sub-name{display:block;font-size:.8rem}.button{display:inline-block;padding:.5rem 1.25rem;background:var(--accent);color:#fff;border:none;border-radius:6px;font:inherit;font-weight:700;text-decoration:none;cursor:pointer}.button:disabled{opacity:.5;cursor:default}.button-secondary{background:transparent;color:var(--text);border:1px solid var(--border)}.link-button{background:none;border:none;padding:.25rem 0;font:inherit;color:var(--text);cursor:pointer}