:root{
  --bg:#f4f6fb;
  --surface:#ffffff;
  --border:#e4e8f0;
  --text:#1a2230;
  --muted:#6b7688;
  --primary:#0b5cff;
  --primary-600:#0a4fdb;
  --danger:#d64545;
  --success:#1f9d63;
  --warn:#c9800a;
  --radius:12px;
  --shadow:0 1px 2px rgba(16,24,40,.05), 0 8px 24px rgba(16,24,40,.06);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;height:100%}
body{background:var(--bg);color:var(--text);font-size:15px;line-height:1.5}
.hidden{display:none !important}

/* ---------- Marca ---------- */
.brand{display:flex;align-items:center;gap:10px}
.brand--center{justify-content:center;margin-bottom:4px}
.brand-mark{
  width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:var(--primary);color:#fff;font-weight:800;font-size:18px;
}
.brand-name{font-weight:700;font-size:20px;letter-spacing:.5px}

/* ---------- Auth ---------- */
.auth-wrap{min-height:100%;display:grid;place-items:center;padding:24px}
.auth-card{
  width:100%;max-width:400px;background:var(--surface);border:1px solid var(--border);
  border-radius:16px;box-shadow:var(--shadow);padding:28px;
}
.auth-sub{text-align:center;color:var(--muted);margin:6px 0 20px}
.tabs{display:flex;background:var(--bg);border-radius:10px;padding:4px;margin-bottom:20px}
.tab{
  flex:1;border:0;background:transparent;padding:9px;border-radius:8px;cursor:pointer;
  font-weight:600;color:var(--muted);font-size:14px;
}
.tab.is-active{background:var(--surface);color:var(--text);box-shadow:var(--shadow)}

/* ---------- Formularios ---------- */
.form{display:flex;flex-direction:column;gap:14px}
.form--card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:22px;max-width:560px}
label{display:flex;flex-direction:column;gap:6px;font-size:13px;font-weight:600;color:var(--muted)}
input,textarea{
  font:inherit;color:var(--text);background:var(--surface);
  border:1px solid var(--border);border-radius:9px;padding:10px 12px;width:100%;
}
input:focus,textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,92,255,.12)}
input[type=file]{padding:8px;background:var(--bg)}
.hint{color:var(--muted);font-weight:500;font-size:12px}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-error{color:var(--danger);font-size:13px;margin:0;min-height:1px}
.info-box{background:#eef3ff;border:1px solid #d5e2ff;color:#274690;padding:12px;border-radius:9px;margin:0;font-size:14px}

/* ---------- Botones ---------- */
.btn{border:1px solid transparent;border-radius:9px;padding:10px 16px;font:inherit;font-weight:600;
  cursor:pointer;transition:.15s;background:var(--bg);color:var(--text)}
.btn:hover{filter:brightness(.98)}
.btn:disabled{opacity:.6;cursor:not-allowed}
.btn--primary{background:var(--primary);color:#fff}
.btn--primary:hover{background:var(--primary-600)}
.btn--ghost{background:transparent;border-color:var(--border);color:var(--text)}
.btn--block{width:100%}
.btn--sm{padding:7px 12px;font-size:13px}

/* ---------- App shell ---------- */
.topbar{display:flex;align-items:center;gap:14px;background:var(--surface);
  border-bottom:1px solid var(--border);padding:12px 20px;position:sticky;top:0;z-index:20}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.user-mail{color:var(--muted);font-size:14px}
.icon-btn{border:0;background:transparent;font-size:22px;cursor:pointer;line-height:1}
.only-mobile{display:none}

.layout{display:flex;min-height:calc(100vh - 57px)}
.sidebar{width:230px;background:var(--surface);border-right:1px solid var(--border);padding:18px 12px;flex-shrink:0}
.nav-group{font-size:11px;text-transform:uppercase;letter-spacing:.8px;color:var(--muted);
  margin:16px 10px 8px;font-weight:700}
.nav-group:first-child{margin-top:0}
.nav-item{display:flex;align-items:center;gap:8px;width:100%;text-align:left;border:0;background:transparent;
  padding:10px 12px;border-radius:9px;cursor:pointer;font:inherit;font-weight:600;color:var(--text);margin-bottom:2px}
.nav-item:hover:not(.is-disabled){background:var(--bg)}
.nav-item.is-active{background:#eef3ff;color:var(--primary)}
.nav-item.is-disabled{color:var(--muted);cursor:default}
.soon{margin-left:auto;font-size:10px;background:var(--bg);color:var(--muted);padding:2px 7px;border-radius:20px;font-weight:700;text-transform:uppercase}

.content{flex:1;padding:26px;max-width:1000px}
.view-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.view-head h1{font-size:22px;margin:0}

/* ---------- Cards de inventario ---------- */
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:14px}
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:16px;display:flex;flex-direction:column;gap:10px}
.card-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
.card-title{font-weight:700;font-size:16px}
.card-sub{color:var(--muted);font-size:13px}
.card-row{font-size:13px;display:flex;gap:6px}
.card-row b{color:var(--muted);font-weight:600;min-width:52px}
.card-foot{display:flex;justify-content:space-between;align-items:center;margin-top:4px;border-top:1px solid var(--border);padding-top:10px}

.badge{font-size:11px;font-weight:700;padding:3px 9px;border-radius:20px;white-space:nowrap}
.badge--disp{background:#e6f6ee;color:var(--success)}
.badge--bloq{background:#fdecec;color:var(--danger)}
.badge--rev{background:#fdf3e3;color:var(--warn)}

.empty{color:var(--muted);text-align:center;padding:40px;border:1px dashed var(--border);border-radius:var(--radius)}

/* ---------- Toast ---------- */
.toast{position:fixed;bottom:22px;left:50%;transform:translateX(-50%) translateY(20px);
  background:#1a2230;color:#fff;padding:12px 18px;border-radius:10px;font-size:14px;
  opacity:0;pointer-events:none;transition:.25s;z-index:50;max-width:90vw}
.toast.show{opacity:1;transform:translateX(-50%) translateY(0)}
.toast.error{background:var(--danger)}
.toast.success{background:var(--success)}

/* ---------- Responsive ---------- */
@media (max-width:760px){
  .only-mobile{display:block}
  .grid-2{grid-template-columns:1fr}
  .sidebar{position:fixed;inset:57px auto 0 0;height:calc(100vh - 57px);z-index:30;transform:translateX(-100%);transition:.2s;box-shadow:var(--shadow)}
  .sidebar.open{transform:translateX(0)}
  .content{padding:18px}
}

/* ---------- Transferencias ---------- */
.subhead{font-size:18px;margin:0}
.badge--info{background:#eef3ff;color:var(--primary)}
select{font:inherit;color:var(--text);background:var(--surface);border:1px solid var(--border);
  border-radius:9px;padding:10px 12px;width:100%}
select:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(11,92,255,.12)}
.inline-code{display:flex;gap:8px;align-items:center}
.inline-code input{max-width:130px;padding:7px 10px}

/* ---------- Panel admin ---------- */
.stats{display:grid;grid-template-columns:repeat(auto-fill,minmax(155px,1fr));gap:14px;margin-bottom:24px}
.stat{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:16px}
.stat-num{font-size:26px;font-weight:800;line-height:1}
.stat-lbl{color:var(--muted);font-size:13px;margin-top:6px}
.panel{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:20px}
.panel h2{font-size:16px;margin:0 0 14px}
.bars{display:flex;flex-direction:column;gap:8px}
.bar-row{display:grid;grid-template-columns:66px 1fr 42px;gap:10px;align-items:center;font-size:13px}
.bar-track{background:var(--bg);border-radius:6px;height:14px;overflow:hidden}
.bar-fill{background:var(--primary);height:100%;min-width:2px}
.bar-val{text-align:right;color:var(--muted)}
.tbl-wrap{overflow-x:auto;background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
table.tbl{width:100%;border-collapse:collapse;font-size:14px}
table.tbl th,table.tbl td{text-align:left;padding:11px 12px;border-bottom:1px solid var(--border);white-space:nowrap}
table.tbl th{color:var(--muted);font-size:11px;text-transform:uppercase;letter-spacing:.6px}
table.tbl tr:last-child td{border-bottom:0}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;margin-right:6px}
.dot--on{background:var(--success)}.dot--off{background:var(--danger)}
.filters{display:flex;gap:10px;align-items:center;margin-bottom:14px;flex-wrap:wrap}
.filters input,.filters select{max-width:280px;margin:0}
.link{color:var(--primary);text-decoration:none;font-weight:600}
.link:hover{text-decoration:underline}