/* v3 — design system para la nueva UI multi-tenant
   Compartido entre /login, /app, /settings, /admin/* */

:root {
  --bg:#f4f6fb;
  --panel:#ffffff;
  --ink:#1f2937;
  --muted:#6b7280;
  --line:#e5e7eb;
  --line-strong:#d1d5db;
  --brand:#2563eb;
  --brand-d:#1e40af;
  --brand-soft:#dbeafe;
  --green:#16a34a; --green-bg:#dcfce7;
  --amber:#d97706; --amber-bg:#fef3c7;
  --red:#dc2626;   --red-bg:#fee2e2;
  --slate-bg:#eef2f7;
  --sidebar:#0f1f3d;
  --sidebar-hover:rgba(255,255,255,.06);
  --sidebar-active:rgba(37,99,235,.18);
  --radius:12px;
  --radius-sm:8px;
  --shadow:0 1px 3px rgba(16,24,40,.08);
  --shadow-lg:0 10px 24px rgba(16,24,40,.12);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0;height:100%}
body{background:var(--bg);color:var(--ink);font-family:var(--font);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}

/* ── Shell ─────────────────────────────────────────── */
.shell{display:grid;grid-template-columns:240px 1fr;min-height:100vh}
.sidebar{background:var(--sidebar);color:#cbd5e1;padding:16px 0;display:flex;flex-direction:column;gap:6px;position:sticky;top:0;height:100vh;overflow-y:auto}
.sidebar h1{font-size:14px;font-weight:600;color:#fff;padding:0 18px 14px;margin:0 0 6px;border-bottom:1px solid rgba(255,255,255,.08);letter-spacing:.3px}
.sidebar h1 .icon{margin-right:8px}
.sidebar .group-label{padding:14px 18px 4px;font-size:11px;text-transform:uppercase;color:#64748b;letter-spacing:.7px}
.sidebar .nav-item{display:flex;align-items:center;gap:10px;padding:9px 18px;color:#cbd5e1;cursor:pointer;border-left:3px solid transparent;transition:background .12s ease,color .12s ease}
.sidebar .nav-item:hover{background:var(--sidebar-hover);color:#fff;text-decoration:none}
.sidebar .nav-item.active{background:var(--sidebar-active);color:#fff;border-left-color:var(--brand)}
.sidebar .nav-item .icon{width:18px;text-align:center;font-size:14px}
.sidebar .nav-item .badge{margin-left:auto;background:rgba(255,255,255,.08);padding:2px 8px;border-radius:999px;font-size:11px;color:#94a3b8}
.sidebar .nav-item.active .badge{background:var(--brand);color:#fff}
.sidebar .spacer{flex:1}
.sidebar .user-row{padding:10px 18px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;color:#94a3b8}
.sidebar .user-row .name{color:#fff;font-weight:500;font-size:13px;margin-bottom:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.sidebar .user-row a{color:#94a3b8;font-size:12px}

.main{display:flex;flex-direction:column;min-height:100vh}
.topbar{display:flex;align-items:center;gap:10px;padding:12px 24px;background:#fff;border-bottom:1px solid var(--line);min-height:58px}
.topbar .title{font-weight:600;font-size:15px}
.topbar .grow{flex:1}
.topbar input.search{flex:1;max-width:420px;padding:8px 12px;border:1px solid var(--line);border-radius:var(--radius-sm);outline:none;font-size:13px;transition:border-color .12s}
.topbar input.search:focus{border-color:var(--brand)}
.content{padding:24px;flex:1}

/* ── Buttons ───────────────────────────────────────── */
.btn{display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-sm);border:1px solid var(--line-strong);background:#fff;color:var(--ink);font-size:13px;cursor:pointer;font-family:inherit;transition:all .12s ease;text-decoration:none}
.btn:hover{background:var(--slate-bg);text-decoration:none}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-d);border-color:var(--brand-d)}
.btn.danger{background:#fff;border-color:var(--red);color:var(--red)}
.btn.danger:hover{background:var(--red-bg)}
.btn.ghost{border-color:transparent;background:transparent}
.btn.ghost:hover{background:var(--slate-bg)}
.btn.sm{padding:4px 10px;font-size:12px}

/* ── Cards/Panels ──────────────────────────────────── */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.card .card-head{padding:14px 18px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:8px}
.card .card-head h2{margin:0;font-size:15px;font-weight:600}
.card .card-body{padding:18px}

/* ── Tabs ──────────────────────────────────────────── */
.tabs{display:flex;gap:2px;border-bottom:1px solid var(--line);margin-bottom:20px}
.tabs .tab{padding:10px 16px;border:none;background:transparent;cursor:pointer;font-size:14px;color:var(--muted);border-bottom:2px solid transparent;font-family:inherit;transition:all .12s ease}
.tabs .tab:hover{color:var(--ink)}
.tabs .tab.active{color:var(--brand);border-bottom-color:var(--brand);font-weight:600}

/* ── Tables ────────────────────────────────────────── */
.table{width:100%;border-collapse:collapse;font-size:13px;background:#fff}
.table th,.table td{padding:10px 14px;text-align:left;border-bottom:1px solid var(--line);vertical-align:middle}
.table th{background:var(--slate-bg);font-weight:600;color:var(--muted);font-size:12px;text-transform:uppercase;letter-spacing:.3px}
.table tr:hover td{background:#fafbfd}
.table .right{text-align:right}
.table .actions{display:flex;gap:6px;justify-content:flex-end}

/* ── Forms ─────────────────────────────────────────── */
.form-row{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.form-row label{font-size:12px;font-weight:600;color:var(--muted);text-transform:uppercase;letter-spacing:.3px}
.form-row input,.form-row select,.form-row textarea{padding:8px 12px;border:1px solid var(--line-strong);border-radius:var(--radius-sm);font-size:14px;font-family:inherit;background:#fff;color:var(--ink);outline:none;transition:border-color .12s}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(37,99,235,.1)}
.form-row .hint{font-size:12px;color:var(--muted)}
.form-row.inline{flex-direction:row;align-items:center;gap:10px}
.form-row.inline label{margin:0;text-transform:none;font-weight:normal;font-size:13px;color:var(--ink)}
.form-row.inline input[type=checkbox]{width:18px;height:18px;cursor:pointer}

/* ── Badges/Pills ──────────────────────────────────── */
.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:600;text-transform:uppercase;letter-spacing:.3px}
.badge.pendiente{background:var(--amber-bg);color:var(--amber)}
.badge.autorizado{background:var(--green-bg);color:var(--green)}
.badge.rechazado{background:var(--red-bg);color:var(--red)}
.badge.borrador{background:var(--slate-bg);color:var(--muted)}
.badge.no_comprobante{background:var(--slate-bg);color:var(--muted)}
.badge.sin_empresa{background:#fff7ed;color:#c2410c}
.badge.admin{background:var(--brand-soft);color:var(--brand-d)}
.badge.inactive{background:var(--slate-bg);color:var(--muted)}

/* ── Modal ─────────────────────────────────────────── */
.modal-backdrop{position:fixed;inset:0;background:rgba(15,23,42,.55);display:flex;align-items:center;justify-content:center;z-index:1000;padding:20px}
.modal{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);max-width:520px;width:100%;max-height:90vh;overflow-y:auto}
.modal .modal-head{padding:16px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center}
.modal .modal-head h3{margin:0;font-size:16px;font-weight:600;flex:1}
.modal .modal-head .close{background:transparent;border:0;font-size:20px;cursor:pointer;color:var(--muted)}
.modal .modal-body{padding:20px}
.modal .modal-foot{padding:14px 20px;border-top:1px solid var(--line);display:flex;justify-content:flex-end;gap:8px}

/* ── Toast ─────────────────────────────────────────── */
.toast{position:fixed;bottom:24px;right:24px;background:var(--ink);color:#fff;padding:12px 18px;border-radius:var(--radius-sm);box-shadow:var(--shadow-lg);font-size:13px;z-index:2000;animation:slideUp .2s ease}
.toast.ok{background:var(--green)}
.toast.err{background:var(--red)}
@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:none;opacity:1}}

/* ── Empty state ───────────────────────────────────── */
.empty{padding:60px 20px;text-align:center;color:var(--muted)}
.empty .icon{font-size:40px;margin-bottom:10px;opacity:.6}
.empty h3{margin:0 0 6px;color:var(--ink);font-weight:600}

/* ── Login page (sin shell) ────────────────────────── */
.login-page{display:flex;align-items:center;justify-content:center;min-height:100vh;background:linear-gradient(135deg,#f4f6fb 0%,#e0e7ff 100%);padding:20px}
.login-box{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);width:100%;max-width:380px;padding:32px}
.login-box h1{margin:0 0 6px;font-size:22px;font-weight:600}
.login-box .subtitle{color:var(--muted);font-size:13px;margin-bottom:24px}
.login-box .err{background:var(--red-bg);color:var(--red);padding:10px 12px;border-radius:var(--radius-sm);margin-bottom:14px;font-size:13px}

/* ── Utility ───────────────────────────────────────── */
.muted{color:var(--muted)}
.row{display:flex;gap:10px;align-items:center}
.gap-md{gap:14px}
.mb-0{margin-bottom:0}.mb-1{margin-bottom:6px}.mb-2{margin-bottom:12px}.mb-3{margin-bottom:18px}
.mt-2{margin-top:12px}.mt-3{margin-top:18px}
.flex-wrap{flex-wrap:wrap}
.grow{flex:1}
.checkbox-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:6px 16px;max-height:520px;overflow-y:auto;padding:12px;border:1px solid var(--line);border-radius:var(--radius-sm)}
.checkbox-list label{display:flex;align-items:center;gap:8px;font-size:13px;padding:4px 6px;cursor:pointer;border-radius:4px}
.checkbox-list label:hover{background:var(--slate-bg)}

/* Selects compactos para tablas (rol, etc.) */
.role-select{padding:5px 28px 5px 10px;border:1px solid var(--line-strong);border-radius:6px;font-size:13px;background:#fff;font-family:inherit;cursor:pointer}
.role-select:focus{border-color:var(--brand);outline:none}

/* Switch (estilo toggle para activo/inactivo) */
.switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;font-size:13px}
.switch input{appearance:none;width:34px;height:20px;background:#cbd5e1;border-radius:999px;position:relative;transition:background .15s ease;cursor:pointer;margin:0}
.switch input::after{content:'';position:absolute;width:16px;height:16px;border-radius:50%;background:#fff;top:2px;left:2px;transition:transform .15s ease;box-shadow:0 1px 3px rgba(0,0,0,.2)}
.switch input:checked{background:var(--green)}
.switch input:checked::after{transform:translateX(14px)}