:root{
  --bg:#f1f5f9; --panel:#ffffff; --ink:#1f2937; --muted:#6b7280;
  --primary:#2563eb; --primary-dark:#1d4ed8; --border:#e5e7eb;
  --danger:#dc2626; --ok:#16a34a; --warn:#d97706;
  --radius:12px; --shadow:0 1px 3px rgba(0,0,0,.08);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  background:var(--bg);color:var(--ink);line-height:1.5}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
code{background:#eef2ff;padding:.05em .35em;border-radius:4px;font-size:.85em;color:#3730a3}
h1,h2,h3{margin:.2em 0}

/* ---------- Layout ---------- */
.layout{display:flex;min-height:100vh}
.sidebar{width:230px;background:#0f172a;color:#cbd5e1;padding:1rem;flex-shrink:0;
  position:sticky;top:0;height:100vh;overflow:auto}
.brand{font-weight:700;color:#fff;font-size:1.05rem;margin-bottom:1.25rem;line-height:1.3}
.nav-link{display:block;color:#cbd5e1;padding:.6rem .75rem;border-radius:8px;margin-bottom:.15rem}
.nav-link:hover{background:#1e293b;text-decoration:none;color:#fff}
.nav-link.active{background:var(--primary);color:#fff}
.main{flex:1;display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;gap:1rem;background:var(--panel);
  padding:.85rem 1.25rem;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5}
.page-title{font-size:1.15rem;margin:0;flex:1}
.user-menu{display:flex;align-items:center;gap:.75rem}
.user-name{color:var(--muted);font-size:.85rem}
.content{padding:1.25rem;max-width:1200px;width:100%}
.menu-toggle{display:none;background:none;border:none;font-size:1.4rem;cursor:pointer;color:var(--ink)}

/* ---------- Cards ---------- */
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:1.1rem;margin-bottom:1.1rem}
.card-header{display:flex;align-items:center;justify-content:space-between;gap:1rem;margin-bottom:.75rem}
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;margin-bottom:1.1rem}
.stat{display:flex;flex-direction:column;gap:.25rem}
.stat-label{color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.03em}
.stat-value{font-size:1.6rem;font-weight:700}
.stat.warn .stat-value{color:var(--warn)}
.stat.ok .stat-value{color:var(--ok)}

/* ---------- Tables ---------- */
.table-wrap{overflow-x:auto}
.table{width:100%;border-collapse:collapse;font-size:.92rem}
.table th,.table td{padding:.6rem .7rem;text-align:left;border-bottom:1px solid var(--border);white-space:nowrap}
.table th{color:var(--muted);font-weight:600;font-size:.78rem;text-transform:uppercase;letter-spacing:.02em}
.table tbody tr:hover{background:#f8fafc}
.right{text-align:right}
.muted{color:var(--muted)}
.actions{display:flex;gap:.35rem;justify-content:flex-end}

/* ---------- Badges ---------- */
.badge{display:inline-block;padding:.15rem .55rem;border-radius:999px;font-size:.75rem;font-weight:600}
.badge-pendiente{background:#fef3c7;color:#92400e}
.badge-pagado{background:#dcfce7;color:#166534}
.badge-vencido{background:#fee2e2;color:#991b1b}
.badge-cancelado{background:#e5e7eb;color:#374151}

/* ---------- Forms ---------- */
.field{display:flex;flex-direction:column;gap:.3rem;margin-bottom:.9rem}
.field>span{font-size:.85rem;color:var(--muted);font-weight:600}
.field input,.field select,.field textarea{
  padding:.6rem .7rem;border:1px solid var(--border);border-radius:8px;font:inherit;background:#fff;width:100%}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:2px solid var(--primary);outline-offset:1px;border-color:var(--primary)}
.field.checkbox{flex-direction:row;align-items:center;gap:.5rem}
.field.checkbox input{width:auto}
.grid-2{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}
.grid-3{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0 1rem}
.grid-form{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem;align-items:start}
.form-card{max-width:760px}
.form-actions{display:flex;gap:.6rem;justify-content:flex-end;margin-top:.5rem}
.perm-group{border:1px solid var(--border);border-radius:8px;padding:.75rem 1rem;margin-bottom:.9rem}
.perm-group legend{font-weight:600;padding:0 .4rem;color:var(--primary)}

/* ---------- Buttons ---------- */
.btn{display:inline-block;padding:.55rem .95rem;border-radius:8px;border:1px solid var(--border);
  background:#fff;color:var(--ink);cursor:pointer;font:inherit;font-weight:600;line-height:1;
  text-decoration:none;transition:background .15s,border-color .15s}
.btn:hover{background:#f1f5f9;text-decoration:none}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark)}
.btn-danger{background:#fff;border-color:#fecaca;color:var(--danger)}
.btn-danger:hover{background:#fef2f2}
.btn-ghost{background:transparent;border-color:transparent}
.btn-sm{padding:.35rem .6rem;font-size:.82rem}
.btn-block{width:100%;text-align:center;margin-top:.5rem}
.btn-file{cursor:pointer}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.inline{display:inline}

/* ---------- Toolbar / filters ---------- */
.toolbar{display:flex;gap:.75rem;flex-wrap:wrap;align-items:center;justify-content:space-between;margin-bottom:1rem}
.filters,.search-form{display:flex;gap:.5rem;flex-wrap:wrap;align-items:center}
.filters input,.filters select,.search-form input{padding:.5rem .6rem;border:1px solid var(--border);border-radius:8px;font:inherit}

/* ---------- Alerts ---------- */
.alert{padding:.75rem 1rem;border-radius:8px;margin-bottom:1rem;font-size:.92rem}
.alert-success{background:#dcfce7;color:#166534;border:1px solid #bbf7d0}
.alert-error{background:#fee2e2;color:#991b1b;border:1px solid #fecaca}
.alert-info{background:#dbeafe;color:#1e40af;border:1px solid #bfdbfe}

/* ---------- Auth ---------- */
.auth-body{display:flex;align-items:center;justify-content:center;min-height:100vh;background:#0f172a;padding:1rem}
.auth-card{background:#fff;border-radius:var(--radius);padding:2rem;width:100%;max-width:380px;box-shadow:0 10px 40px rgba(0,0,0,.3)}
.auth-title{text-align:center;font-size:1.15rem;margin-bottom:1.25rem;color:var(--primary)}
.auth-form .field{margin-bottom:1rem}

/* ---------- Detail / show ---------- */
.detail{display:grid;grid-template-columns:140px 1fr;gap:.4rem 1rem;margin:0}
.detail dt{color:var(--muted);font-weight:600}
.detail dd{margin:0}
.doc-image{max-width:100%;border-radius:8px;border:1px solid var(--border)}
.ocr-raw{margin-top:1rem}
.ocr-raw pre{white-space:pre-wrap;background:#f8fafc;padding:.75rem;border-radius:8px;max-height:280px;overflow:auto;font-size:.82rem}
.notify-box{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--border)}
.notify-actions{display:flex;gap:.5rem;flex-wrap:wrap}

/* ---------- Camera ---------- */
.camera-area{background:#0f172a;border-radius:8px;overflow:hidden;margin-bottom:.75rem;min-height:60px}
.cam-video,.cam-preview{width:100%;display:block;max-height:420px;object-fit:contain;background:#0f172a}
.camera-controls{display:flex;gap:.5rem;flex-wrap:wrap;margin-bottom:.6rem}
.ocr-status{font-size:.88rem;margin-top:.5rem;min-height:1.2em}
.ocr-status.working{color:var(--warn)}
.ocr-status.done{color:var(--ok)}
.ocr-status.error{color:var(--danger)}

/* ---------- Responsive ---------- */
@media (max-width:860px){
  .grid-form{grid-template-columns:1fr}
}
@media (max-width:720px){
  .grid-2,.grid-3{grid-template-columns:1fr}
  .sidebar{position:fixed;left:0;top:0;transform:translateX(-100%);transition:transform .2s;z-index:20}
  .sidebar.open{transform:translateX(0)}
  .menu-toggle{display:block}
  .user-name{display:none}
}