:root{--bg:#f7f8fa;--surface:#ffffff;--sidebar:#16181d;--sidebar-hover:#23262e;--border:#e4e7ec;--text:#1a1d23;--text-dim:#6b7280;--text-inv:#e8eaed;--accent:#3b82f6;--green:#10b981;--red:#ef4444;--amber:#f59e0b;--radius:10px;--font:"IBM Plex Sans",-apple-system,sans-serif;--mono:"IBM Plex Mono",monospace}*{box-sizing:border-box;margin:0;padding:0}body{font-family:var(--font);background:var(--bg);color:var(--text)}.admin-shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}.sidebar{background:var(--sidebar);color:var(--text-inv);padding:20px 14px;display:flex;flex-direction:column;gap:4px}.sidebar__brand{font-weight:700;font-size:18px;padding:8px 10px 20px;letter-spacing:-.02em}.sidebar__item{padding:9px 12px;border-radius:8px;cursor:pointer;font-size:14px;color:#9ca3af;text-decoration:none;transition:all .12s;display:flex;align-items:center;gap:9px}.sidebar__item:hover{background:var(--sidebar-hover);color:#fff}.sidebar__item--active{background:var(--accent);color:#fff}.sidebar__spacer{flex:1}.topbar{display:flex;align-items:center;justify-content:space-between;padding:14px 28px;background:var(--surface);border-bottom:1px solid var(--border)}.project-switch{display:flex;gap:6px;background:var(--bg);padding:4px;border-radius:9px}.project-switch button{border:none;background:transparent;padding:7px 16px;border-radius:6px;cursor:pointer;font-size:13px;font-weight:600;color:var(--text-dim)}.project-switch button[data-active=true]{background:var(--surface);color:var(--text);box-shadow:0 1px 3px rgba(0,0,0,.08)}.content{padding:28px}.page-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:22px}.page-head h1{font-size:22px;font-weight:700;letter-spacing:-.02em}.btn{border:1px solid var(--border);background:var(--surface);padding:8px 16px;border-radius:8px;cursor:pointer;font-size:13px;font-weight:600;transition:all .12s;color:var(--text)}.btn:hover{border-color:#c4c9d4}.btn--primary{background:var(--accent);color:#fff;border-color:var(--accent)}.btn--primary:hover{filter:brightness(1.06)}.btn--danger{color:var(--red);border-color:#fecaca}.btn--sm{padding:5px 11px;font-size:12px}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:16px}.set-card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:18px;cursor:pointer;transition:all .14s}.set-card:hover{border-color:var(--accent);transform:translateY(-1px);box-shadow:0 4px 16px rgba(0,0,0,.06)}.set-card__code{font-family:var(--mono);font-size:12px;color:var(--text-dim)}.set-card__name{font-size:17px;font-weight:600;margin:6px 0 12px}.set-card__meta{display:flex;justify-content:space-between;align-items:center}.badge{font-size:11px;font-weight:600;padding:3px 9px;border-radius:20px}.badge--on{background:#d1fae5;color:#065f46}.badge--off{background:#fee2e2;color:#991b1b}.offer-row{display:grid;grid-template-columns:48px 1fr auto;gap:14px;align-items:center;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:12px 16px;margin-bottom:10px}.offer-row--deleted{opacity:.5}.offer-row__logo{width:48px;height:48px;object-fit:contain;border-radius:8px;background:var(--bg)}.offer-row__title{font-weight:600;font-size:14px}.offer-row__sub{font-size:12px;color:var(--text-dim);margin-top:2px}.offer-row__actions{display:flex;gap:6px}.modal-overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);display:grid;place-items:center;z-index:50}.modal{background:var(--surface);border-radius:14px;padding:26px;width:480px;max-height:90vh;overflow-y:auto}.modal h2{font-size:18px;margin-bottom:18px}.field{margin-bottom:14px}.field label{display:block;font-size:12px;font-weight:600;color:var(--text-dim);margin-bottom:5px}.field input{width:100%;padding:9px 12px;border:1px solid var(--border);border-radius:8px;font-size:14px;font-family:var(--font)}.field input:focus{outline:none;border-color:var(--accent)}.modal-actions{display:flex;gap:8px;justify-content:flex-end;margin-top:20px}.login-wrap{min-height:100vh;display:grid;place-items:center;background:var(--sidebar)}.login-box{background:var(--surface);padding:36px;border-radius:16px;width:360px}.login-box h1{font-size:20px;margin-bottom:6px}.login-box p{font-size:13px;color:var(--text-dim);margin-bottom:24px}.error-text{color:var(--red);font-size:13px;margin-top:10px}.empty{text-align:center;padding:60px;color:var(--text-dim)}