:root{--ink:#132238;--muted:#687386;--line:#dce2ea;--bg:#f4f7fb;--accent:#173d6b;--accent2:#24639d;--danger:#a62e2e}
*{box-sizing:border-box}body{margin:0;font-family:system-ui,-apple-system,"Segoe UI","Noto Sans JP",sans-serif;background:var(--bg);color:var(--ink)}a{color:var(--accent2);text-decoration:none}.container{max-width:1120px;margin:auto;padding:0 20px}header{background:white;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10}.nav{min-height:64px;display:flex;align-items:center;gap:18px}.brand{font-weight:800;letter-spacing:.04em;color:var(--ink);margin-right:auto}.nav form{margin:0}.nav button{background:none;border:0;color:var(--accent2);cursor:pointer;font:inherit}main{padding:28px 0 56px}h1{font-size:28px;margin:0 0 8px}h2{font-size:20px;margin:10px 0 16px}.muted{color:var(--muted)}.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px}.hero{background:linear-gradient(135deg,#fff,#eef4fb);border:1px solid var(--line);border-radius:18px;padding:28px;margin-bottom:22px}.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.row{display:grid;grid-template-columns:1fr 1fr;gap:16px}.profile-card{display:flex;gap:14px}.avatar{width:72px;height:72px;border-radius:14px;object-fit:cover;background:#e8edf4}.avatar.large{width:132px;height:132px}.avatar.wide{width:180px;height:120px}.pill{display:inline-block;font-size:12px;padding:4px 9px;border-radius:999px;background:#eaf1f8;color:#24496c;margin:0 4px 4px 0}.tags{margin:10px 0}.field{margin-bottom:14px}.field label{display:block;font-size:13px;font-weight:700;margin-bottom:6px}input,select,textarea{width:100%;padding:10px 12px;border:1px solid #cfd7e2;border-radius:10px;background:#fff;font:inherit}textarea{min-height:105px;resize:vertical}.check{display:flex;gap:8px;align-items:center}.check input{width:auto}.btn{display:inline-flex;align-items:center;justify-content:center;border:0;border-radius:10px;padding:10px 15px;background:var(--accent);color:#fff;font-weight:700;cursor:pointer}.btn.secondary{background:#fff;color:var(--accent);border:1px solid var(--line)}.btn.danger{background:var(--danger)}.actions{display:flex;gap:8px;flex-wrap:wrap}.split{justify-content:space-between;align-items:center;margin-bottom:16px}.searchbar{display:grid;grid-template-columns:2fr 1fr 1fr auto;gap:10px;margin-top:18px}.flash{padding:12px 14px;border-radius:10px;margin-bottom:14px;background:#eaf6ee;border:1px solid #bedec8}.flash.error{background:#fff0f0;border-color:#ecc4c4}.detail-head{display:flex;gap:24px}.detail-main{flex:1}.kv{display:grid;grid-template-columns:170px 1fr;border-top:1px solid var(--line)}.kv div{padding:10px 6px;border-bottom:1px solid var(--line)}.achievement{display:grid;grid-template-columns:180px 1fr;gap:16px;margin-bottom:16px}.achievement img{width:100%;max-height:140px;object-fit:cover;border-radius:12px}.section{margin-top:24px}.pre{white-space:pre-wrap}.login-wrap{max-width:420px;margin:60px auto}.login-card{background:white;border:1px solid var(--line);border-radius:18px;padding:28px}.narrow{max-width:620px;margin:auto}.medium{max-width:820px;margin:auto}.achievement-editor{border:1px solid var(--line);padding:14px;border-radius:12px;margin-bottom:12px;background:#fbfcfe}table{width:100%;border-collapse:collapse;background:#fff;border-radius:14px;overflow:hidden}th,td{padding:12px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{font-size:12px;color:var(--muted);background:#f8fafc}.admin-nav{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}.admin-nav a{background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 12px}.notice{background:#fff7d6;border:1px solid #e5d490;border-radius:12px;padding:14px}.stats strong{font-size:24px}code{word-break:break-all}
@media(max-width:800px){.grid,.row,.searchbar{grid-template-columns:1fr}.nav{flex-wrap:wrap;padding:12px 0}.detail-head,.achievement{display:block}.avatar.large{margin-bottom:15px}.kv{grid-template-columns:120px 1fr}}