:root{
  --bg:#f4f6fb;--surface:#ffffff;--surface-2:#f1f4f9;--border:#e2e6ef;--text:#1c2333;--muted:#6b7385;
  --primary:#f59e0b;--primary-dark:#d97706;--primary-soft:rgba(245,158,11,.12);
  --danger:#dc2626;--danger-soft:rgba(220,38,38,.1);
  --success:#16a34a;--success-soft:rgba(22,163,74,.1);
  --radius:14px;--radius-sm:9px;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 10px 28px rgba(15,23,42,.07);
}
*{box-sizing:border-box}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
.nav-link{display:inline-flex;align-items:center;gap:6px;padding:9px 12px;border-radius:var(--radius-sm);color:var(--primary);font-weight:700;font-size:13.5px}
.nav-link:hover{background:var(--primary-soft);text-decoration:none}
h1,h2,h3{margin:0 0 4px;font-weight:700;letter-spacing:-.01em}
p{margin:0}
.muted{color:var(--muted);font-size:13px}
.hidden{display:none!important}

/* ---- inputs / buttons ---- */
input,select,textarea{font-family:inherit;font-size:14px;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid var(--border);background:var(--surface-2);color:var(--text);width:100%;transition:border-color .15s,box-shadow .15s}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-soft)}
input[type=checkbox]{width:auto}
button{cursor:pointer;font-family:inherit;font-size:14px;font-weight:700;padding:10px 16px;border-radius:var(--radius-sm);border:0;background:var(--primary);color:#1a1204;transition:background .15s,transform .05s}
button:hover{background:var(--primary-dark)}
button:active{transform:translateY(1px)}
button.secondary{background:var(--surface-2);color:var(--text);border:1px solid var(--border);font-weight:600}
button.secondary:hover{background:var(--border)}
button.danger{background:var(--danger-soft);color:var(--danger);font-weight:600}
button.danger:hover{background:var(--danger);color:#fff}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:12px;font-weight:600;color:var(--muted)}
.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:12px;align-items:end}
.btn-row{display:flex;gap:8px;align-items:center;flex-wrap:wrap}

/* ---- topbar / layout ---- */
.topbar{display:flex;align-items:center;gap:14px;padding:14px 24px;border-bottom:1px solid var(--border);background:var(--surface);flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;white-space:nowrap}
.brand img{height:32px;width:auto;display:block}
.topbar-actions{margin-left:auto;display:flex;align-items:center;gap:14px;flex-wrap:wrap}
.status-pill{font-size:12.5px;font-weight:600;color:var(--text);background:var(--surface-2);border:1px solid var(--border);padding:5px 12px;border-radius:999px;min-height:14px}
main{max-width:1200px;margin:0 auto;padding:22px 20px 60px}

/* ---- app shell (sidebar layout) ---- */
.app{display:flex;min-height:100vh}
.sidebar{width:220px;flex:none;background:var(--surface);border-right:1px solid var(--border);display:flex;flex-direction:column;padding:16px 10px;position:sticky;top:0;height:100vh}
.sidebar .brand{padding:8px 10px 18px}
nav{display:flex;flex-direction:column;gap:2px;flex:1}
.navbtn{display:flex;align-items:center;gap:10px;background:transparent;color:var(--muted);text-align:left;padding:10px 12px;font-weight:600;border-radius:var(--radius-sm);font-size:13.5px;width:100%}
.navbtn:hover{background:var(--surface-2);color:var(--text)}
.navbtn.active{background:var(--primary-soft);color:var(--primary)}
.main-area{flex:1;min-width:0}
.pane-header{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;margin-bottom:16px}
.pane-header h3{margin:0}

/* ---- modals ---- */
.modal-overlay{position:fixed;inset:0;background:rgba(4,7,14,.6);display:flex;align-items:center;justify-content:center;padding:20px;z-index:100}
.modal{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);width:100%;max-width:520px;max-height:90vh;overflow-y:auto;box-shadow:var(--shadow);padding:22px}
.modal-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px}
.modal-header h2,.modal-header h3{font-size:16px;margin:0}
.modal-close{background:transparent;color:var(--muted);padding:6px 10px;border-radius:999px;font-size:15px;line-height:1}
.modal-close:hover{background:var(--surface-2);color:var(--text)}

/* ---- checkbox multi-select picker ---- */
.item-picker{border:1px solid var(--border);border-radius:var(--radius-sm);max-height:180px;overflow-y:auto;padding:6px;background:var(--surface-2)}
.item-picker .empty{display:block;padding:12px;text-align:center;color:var(--muted);font-size:13px}
.pick-row{display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:var(--radius-sm);font-size:13.5px}
.pick-row:hover{background:var(--border)}
.pick-row input[type=checkbox]{flex:none}

@media (max-width:900px){
  .app{flex-direction:column}
  .sidebar{width:100%;height:auto;position:relative;flex-direction:row;flex-wrap:wrap;padding:10px}
  .sidebar .brand{padding:6px 10px;width:100%}
  nav{flex-direction:row;flex-wrap:wrap}
}

/* ---- cards ---- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:20px 22px;margin-bottom:18px;box-shadow:var(--shadow)}
.card h3{font-size:15px;margin-bottom:14px}
.card .grid{margin-bottom:0}

/* ---- tables ---- */
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius-sm);margin-top:14px}
table{width:100%;border-collapse:collapse;font-size:13.5px}
th{text-align:left;padding:10px 12px;background:var(--surface-2);color:var(--muted);font-weight:600;font-size:11.5px;text-transform:uppercase;letter-spacing:.03em;white-space:nowrap}
td{padding:10px 12px;border-top:1px solid var(--border);vertical-align:middle}
tbody tr:hover td{background:var(--surface-2)}
td img{max-width:120px;border-radius:6px;display:block}

/* ---- badges ---- */
.badge{display:inline-block;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;white-space:nowrap}
.badge-green{background:var(--success-soft);color:var(--success)}
.badge-red{background:var(--danger-soft);color:var(--danger)}
.badge-amber{background:var(--primary-soft);color:var(--primary)}
.badge-slate{background:rgba(139,150,173,.16);color:var(--muted)}

/* ---- auth screen (login) ---- */
.auth-screen{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:24px;background:
  radial-gradient(circle at 15% 15%, var(--primary-soft), transparent 45%),
  radial-gradient(circle at 85% 85%, var(--primary-soft), transparent 45%), var(--bg)}
.auth-card{position:relative;overflow:hidden;width:100%;max-width:380px;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:40px 32px 32px}
.auth-card::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:linear-gradient(90deg,var(--primary),var(--primary-dark))}
.auth-header{text-align:center;margin-bottom:24px}
.auth-logo{height:56px;width:auto;max-width:220px;margin:0 auto 16px;display:block;background:#fff;padding:8px 12px;border-radius:10px}
.auth-card h1{font-size:21px}
.auth-card .muted{display:block;margin-top:4px}
.auth-card form{display:flex;flex-direction:column;gap:12px;margin-top:24px}
.err{color:var(--danger);font-size:13px;min-height:16px;text-align:center}

/* ---- review page ---- */
.rev-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.item{border-bottom:1px solid var(--border);padding:10px 4px;cursor:pointer;border-radius:var(--radius-sm)}
.item:hover{background:var(--surface-2)}
.item.active{background:var(--primary-soft)}
canvas{max-width:100%;border:2px solid var(--primary);border-radius:var(--radius-sm);cursor:crosshair;background:var(--surface-2)}
@media (max-width:800px){.rev-grid{grid-template-columns:1fr}}

@media (max-width:640px){
  main{padding:14px}
  .card{padding:16px}
  .topbar{padding:12px 16px}
  .auth-card{padding:28px 22px}
}