:root{
  --bg:#f3f2ef;--surface:#fff;--ink:#161616;--muted:#6a6a68;
  --accent:#141414;--yellow:#f5c518;--yellow-d:#d9ad06;--yellow-soft:#fdf4cf;--yellow-border:#eedd97;
  --line:#e6e4df;--good:#2f9e58;--warn:#8a6a00;--danger:#b34b3b;
  --shadow:0 1px 3px rgba(20,20,20,.06),0 8px 24px rgba(20,20,20,.05);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
}
*{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);line-height:1.5;font-size:16px;-webkit-text-size-adjust:100%}
a{color:var(--ink)}
.wrap{max-width:960px;margin:0 auto;padding:0 14px 60px}

/* top bar */
.topnav{position:sticky;top:0;z-index:40;background:#141414;color:#fff;display:flex;align-items:center;gap:10px;padding:10px 14px;flex-wrap:wrap}
.topnav .logo{height:30px}
.topnav b{font-size:15px;margin-right:6px}
.topnav a{color:#e9e9e6;text-decoration:none;padding:8px 12px;border-radius:9px;font-size:14px;min-height:40px;display:inline-flex;align-items:center}
.topnav a:hover{background:#2a2a2a}
.topnav a.active{background:var(--yellow);color:#141414;font-weight:700}
.topnav .navbtn{color:#e9e9e6;background:none;border:0;font-family:inherit;font-size:14px;padding:8px 12px;border-radius:9px;min-height:40px;cursor:pointer}
.topnav .navbtn:hover{background:#2a2a2a}
.topnav .sp{flex:1}
.topnav .who{color:#bdbdba;font-size:13px}
.topnav .who b{color:var(--yellow)}

h1{font-size:22px;margin:20px 0 12px}
h2{font-size:17px;margin:18px 0 8px;border-left:4px solid var(--yellow);padding-left:10px}
.muted{color:var(--muted)}.small{font-size:13px}
.hint{color:var(--muted);font-size:13px;margin:4px 0 12px}

.card{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:16px;margin:12px 0;box-shadow:var(--shadow)}
label{display:block;font-size:12px;color:var(--muted);font-weight:600;margin:8px 0 3px}
input,select,textarea{width:100%;padding:11px 12px;border:1px solid var(--line);border-radius:10px;font-size:16px;font-family:inherit;background:#fff;color:var(--ink)}
input:focus,textarea:focus,select:focus{outline:2px solid var(--yellow-soft);border-color:var(--yellow-d)}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.row3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:10px}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--accent);color:#fff;border:0;border-radius:10px;
  padding:11px 16px;font-size:14px;font-weight:600;font-family:inherit;cursor:pointer;min-height:44px;text-decoration:none}
.btn:hover{filter:brightness(1.15)}
.btn.y{background:var(--yellow);color:#141414}
.btn.sec{background:#fff;color:var(--ink);border:1px solid var(--line)}
.btn.danger{background:#fff;color:var(--danger);border:1px solid #e6c9c4}
.btn.sm{padding:7px 11px;min-height:36px;font-size:13px}

.table{width:100%;border-collapse:collapse;font-size:14px;background:#fff;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.table th,.table td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.table th{background:#faf9f5;font-size:12px;text-transform:uppercase;letter-spacing:.03em;color:var(--muted)}
.table tr:last-child td{border-bottom:0}
.table .n{text-align:right;white-space:nowrap;font-variant-numeric:tabular-nums}
.table-wrap{overflow-x:auto}

.tag{display:inline-block;background:var(--yellow-soft);border:1px solid var(--yellow-border);color:#4a4a2a;border-radius:999px;padding:3px 10px;font-size:12px}
.tag.admin{background:#141414;color:var(--yellow);border-color:#141414}
.tag.off{background:#f0efe9;color:#999;border-color:var(--line)}

.flash{background:var(--yellow-soft);border:1px solid var(--yellow-border);border-radius:10px;padding:10px 14px;margin:10px 0;font-size:14px}
.err{background:#fdecea;border:1px solid #f2c6c0;color:#a03027;border-radius:10px;padding:10px 14px;margin:10px 0}

details.box{background:#fff;border:1px solid var(--line);border-radius:12px;margin:10px 0}
details.box>summary{cursor:pointer;padding:12px 14px;font-weight:600;list-style:none}
details.box>summary::-webkit-details-marker{display:none}
details.box>summary::before{content:"＋ ";color:var(--yellow-d)}
details.box[open]>summary::before{content:"– "}
.box-body{padding:2px 14px 14px}

.gallery{display:grid;grid-template-columns:repeat(auto-fill,minmax(120px,1fr));gap:8px}
.gallery a{position:relative;display:block}
.gallery img{width:100%;height:120px;object-fit:cover;border-radius:10px;border:1px solid var(--line);background:#eee}
.gallery form{position:absolute;top:4px;right:4px}
.gallery .del{background:rgba(20,20,20,.72);color:#fff;border:0;border-radius:8px;width:28px;height:28px;cursor:pointer;font-size:14px}
.up{border:2px dashed var(--yellow-border);border-radius:12px;padding:14px;text-align:center;background:#fffdf3;margin:8px 0}

@media (max-width:560px){
  .row2,.row3{grid-template-columns:1fr}
  .topnav{flex-wrap:nowrap;overflow-x:auto;gap:2px;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  .topnav::-webkit-scrollbar{display:none}
  .topnav b,.topnav .who,.topnav .sp{display:none}
  .topnav .logo{flex:0 0 auto}
  .topnav a,.topnav .navbtn{padding:9px 11px;white-space:nowrap;flex:0 0 auto}
  h1{font-size:20px}
}