:root{
  --bg:#f6f5f2;--panel:#fff;--ink:#1d1c1a;--sub:#57544e;--muted:#9b988f;--line:#ecebe6;--line-2:#f3f2ee;
  --accent:#b23a30;--accent-d:#8f2c24;--soft:#fbf2f0;--ok:#2f8a5f;--bar:56px;--side:236px;--listw:330px;--rad:14px;
}
*{box-sizing:border-box}html,body{margin:0}
body{font-family:'Pretendard Variable',Pretendard,-apple-system,'Apple SD Gothic Neo',sans-serif;color:var(--ink);background:var(--bg);
  line-height:1.5;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;letter-spacing:-.01em}
a{color:inherit;text-decoration:none}
.appbar{position:sticky;top:0;height:var(--bar);display:flex;align-items:center;gap:12px;padding:0 16px;
  background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(12px);border-bottom:1px solid var(--line);z-index:30}
.appbar-brand{font-weight:800;font-size:17px;color:var(--accent);letter-spacing:-.02em}
.icon-btn{display:none;align-items:center;justify-content:center;width:38px;height:38px;border:1px solid var(--line);border-radius:10px;background:var(--panel);color:var(--ink);cursor:pointer}
.back{display:none;font-size:15px;color:var(--sub);font-weight:600;padding:6px 4px}
.layout{display:grid;grid-template-columns:var(--side) var(--listw) 1fr;align-items:start}

/* sidebar */
.sidebar{position:sticky;top:var(--bar);height:calc(100vh - var(--bar));overflow:auto;padding:18px 12px;border-right:1px solid var(--line);background:var(--panel)}
.brand{display:none}
.nav-cap{font-size:11px;font-weight:700;letter-spacing:.08em;color:var(--muted);padding:4px 12px 10px}
.nav-item{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:10px 12px;border-radius:10px;font-size:14.5px;font-weight:500;color:var(--sub);transition:background .15s,color .15s;position:relative}
.nav-item:hover{background:var(--line-2);color:var(--ink)}
.nav-item.active{background:var(--soft);color:var(--accent);font-weight:700}
.nav-item.active::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:3px;background:var(--accent)}
.nav-cnt{font-size:12px;color:var(--muted);font-weight:600;font-variant-numeric:tabular-nums}
.nav-item.active .nav-cnt{color:var(--accent)}

/* list */
.list{position:sticky;top:var(--bar);height:calc(100vh - var(--bar));overflow:auto;border-right:1px solid var(--line);background:var(--panel)}
.list-head{position:sticky;top:0;display:flex;align-items:center;justify-content:space-between;padding:16px 18px 12px;background:linear-gradient(var(--panel),var(--panel) 70%,transparent);font-size:13px;font-weight:700;color:var(--sub);z-index:2}
.list-cnt{font-size:12px;color:var(--muted);background:var(--line-2);padding:2px 9px;border-radius:999px}
.rows{padding:0 8px 20px}
.grp{display:flex;align-items:center;justify-content:space-between;padding:14px 10px 6px;font-size:12px;font-weight:800;color:var(--accent-d);letter-spacing:.02em}
.grp-cnt{font-size:11px;font-weight:600;color:var(--muted)}
.row{display:block;padding:12px;border-radius:12px;margin-bottom:2px;transition:background .12s}
.row:hover{background:var(--line-2)}
.row.active{background:var(--soft)}
.row-title{font-size:14.5px;font-weight:600;color:var(--ink);line-height:1.35}
.row.active .row-title{color:var(--accent)}
.row-foot{display:flex;align-items:center;gap:8px;margin-top:6px}
.row-price{font-size:15px;font-weight:800;color:var(--accent);letter-spacing:-.01em}
.row-dl{font-size:12px;color:var(--sub);background:var(--line-2);padding:2px 8px;border-radius:999px;font-weight:600}

/* detail */
.detail{padding:28px 34px 60px;max-width:780px}
.d-head{margin-bottom:6px}
.d-crumb{font-size:12.5px;color:var(--muted);font-weight:600;display:flex;gap:6px;align-items:center}
.d-title{font-size:26px;font-weight:800;letter-spacing:-.025em;margin:8px 0 0;line-height:1.25}
.sep{color:var(--line)}
.buybar{position:sticky;top:var(--bar);z-index:20;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  background:rgba(255,255,255,.93);backdrop-filter:saturate(180%) blur(10px);border:1px solid var(--line);border-radius:16px;
  padding:14px 18px;margin:14px 0 20px;box-shadow:0 8px 26px rgba(30,24,20,.07)}
.bb-label{font-size:12px;font-weight:700;color:var(--muted)}
.bb-dl{color:var(--accent-d)}
.bb-prices{display:flex;align-items:baseline;gap:9px;margin-top:3px}
.bb-reg{font-size:14px;color:var(--muted);text-decoration:line-through}
.bb-now{font-size:30px;font-weight:800;color:var(--accent);letter-spacing:-.025em;line-height:1.05}
.bb-actions{display:flex;gap:8px;flex-shrink:0}
.btn{text-align:center;padding:13px 22px;border-radius:12px;font-weight:700;font-size:15px;border:1px solid var(--line);background:var(--panel);color:var(--ink);transition:transform .08s,box-shadow .15s,background .15s;white-space:nowrap}
.btn:hover{box-shadow:0 4px 14px rgba(0,0,0,.08)}
.btn:active{transform:translateY(1px)}
.btn.primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 6px 18px rgba(178,58,48,.24)}
.btn.primary:hover{background:var(--accent-d)}
.gallery{display:flex;flex-direction:column;gap:0;margin:10px -34px 0}
.shot,.gallery img{width:100%;height:auto;display:block;background:#eee}
.empty{color:var(--muted);padding:60px 10px;font-size:15px}
.empty-sm{color:var(--muted);padding:24px 12px;font-size:13px}
.scrim{display:none}

@media(max-width:980px){
  .icon-btn{display:inline-flex}
  .layout{display:block}
  .sidebar{position:fixed;top:0;left:-300px;width:280px;height:100vh;padding-top:18px;transition:left .22s cubic-bezier(.4,0,.2,1);z-index:40;box-shadow:14px 0 40px rgba(0,0,0,.12)}
  .brand{display:block;padding:4px 12px 14px;font-weight:800;font-size:18px;color:var(--accent)}
  body.drawer .sidebar{left:0}
  body.drawer .scrim{display:block;position:fixed;inset:0;background:rgba(20,18,16,.4);z-index:35}
  .list,.detail{position:static;height:auto;border:none;max-width:none}
  .detail{padding:18px 16px 40px}
  .gallery{margin:10px -16px 0}
  .d-title{font-size:22px}
  body.mode-detail .list{display:none}
  body.mode-detail .back{display:inline-block}
  body.mode-list .detail{display:none}
  .buybar{margin:12px 0 16px;padding:12px 14px}
  .bb-now{font-size:26px}
  .bb-actions{width:100%}
  .bb-actions .btn{flex:1;padding:13px 10px}
}