:root {
  --primary:    #1a3a5c;
  --primary-lt: #2563eb;
  --accent:     #f59e0b;
  --success:    #16a34a;
  --danger:     #dc2626;
  --warning:    #d97706;
  --bg:         #f1f5f9;
  --surface:    #ffffff;
  --border:     #e2e8f0;
  --text:       #1e293b;
  --text-muted: #64748b;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body { font-family: 'Segoe UI', sans-serif; background: var(--bg); color: var(--text); display: flex; min-height: 100vh; }

/* ── Sidebar ── */
.sidebar {
  width: 220px; min-height: 100vh; background: var(--primary);
  display: flex; flex-direction: column; position: fixed; top: 0; left: 0; z-index: 200;
  transition: transform 0.3s;
}
.sidebar-brand { padding: 18px 16px; border-bottom: 1px solid rgba(255,255,255,.1); }
.sidebar-brand .logo-text  { color: #fff; font-size: 15px; font-weight: 700; display: block; }
.sidebar-brand .logo-accent { color: var(--accent); }
.sidebar-brand .logo-sub   { color: rgba(255,255,255,.5); font-size: 11px; }
.nav { flex: 1; padding: 12px 0; }
.nav-link {
  display: flex; align-items: center; gap: 10px; padding: 10px 16px;
  color: rgba(255,255,255,.75); text-decoration: none; font-size: 14px;
  border-left: 3px solid transparent; transition: all .2s;
}
.nav-link:hover, .nav-link.active { color: #fff; background: rgba(255,255,255,.08); border-left-color: var(--accent); }
.nav-link svg { width: 18px; height: 18px; flex-shrink: 0; }
.nav-section { padding: 14px 16px 4px; font-size: 10px; color: rgba(255,255,255,.35); text-transform: uppercase; letter-spacing: .8px; }
.sidebar-footer { padding: 12px 16px; border-top: 1px solid rgba(255,255,255,.1); }
.sidebar-footer .user-name { color: rgba(255,255,255,.8); font-size: 13px; }

/* ── Main ── */
.main { margin-left: 220px; flex: 1; display: flex; flex-direction: column; min-height: 100vh; }
.topbar {
  background: var(--surface); border-bottom: 1px solid var(--border);
  padding: 0 24px; height: 56px; display: flex; align-items: center; gap: 12px; position: sticky; top: 0; z-index: 100;
}
.topbar h1 { font-size: 17px; font-weight: 600; flex: 1; }
.hamburger { display: none; background: none; border: none; cursor: pointer; color: var(--text); }
.content { padding: 24px; flex: 1; }

/* ── Cards ── */
.cards-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 24px; }
.card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 10px;
  padding: 18px; display: flex; flex-direction: column; gap: 6px;
}
.card-label { font-size: 12px; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }
.card-value { font-size: 22px; font-weight: 700; color: var(--primary); }
.card-value.success { color: var(--success); }
.card-value.accent  { color: var(--accent); }
.card-value.danger  { color: var(--danger); }
.card-sub { font-size: 12px; color: var(--text-muted); }
.card.neto { border-left: 4px solid var(--success); }
.card.devengado { border-left: 4px solid var(--primary); }
.card.deduccion { border-left: 4px solid var(--danger); }
.card.aportes { border-left: 4px solid var(--accent); }

/* ── Panel / Surface ── */
.panel { background: var(--surface); border: 1px solid var(--border); border-radius: 10px; padding: 20px; margin-bottom: 20px; }
.panel-title { font-size: 15px; font-weight: 600; color: var(--primary); margin-bottom: 16px; display: flex; align-items: center; gap: 8px; }

/* ── Tablas ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 13px; }
thead th { background: var(--primary); color: #fff; padding: 10px 12px; font-weight: 600; text-align: left; white-space: nowrap; }
tbody tr:hover { background: #f8fafc; }
tbody td { padding: 9px 12px; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
.td-actions { display: flex; gap: 6px; align-items: center; flex-wrap: nowrap; }

/* ── Botones ── */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 8px 16px; border-radius: 6px; border: none; cursor: pointer; font-size: 13px; font-weight: 500; text-decoration: none; transition: all .2s; white-space: nowrap; }
.btn-primary   { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-lt); }
.btn-success   { background: var(--success); color: #fff; }
.btn-success:hover { opacity: .85; }
.btn-danger    { background: var(--danger); color: #fff; }
.btn-danger:hover { opacity: .85; }
.btn-secondary { background: var(--border); color: var(--text); }
.btn-secondary:hover { background: #cbd5e1; }
.btn-outline   { background: transparent; border: 1px solid var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: #fff; }
.btn-sm { padding: 5px 10px; font-size: 12px; }
.btn-lg { padding: 11px 22px; font-size: 14px; }
.btn:disabled { opacity: .5; cursor: not-allowed; }

/* ── Formularios ── */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; font-weight: 500; margin-bottom: 5px; color: var(--text); }
.form-control {
  width: 100%; padding: 9px 12px; border: 1px solid var(--border); border-radius: 6px;
  font-size: 13px; color: var(--text); background: var(--surface); outline: none; transition: border .2s;
}
.form-control:focus { border-color: var(--primary-lt); box-shadow: 0 0 0 2px rgba(37,99,235,.15); }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 16px; }

/* ── Badges ── */
.badge { display: inline-block; padding: 2px 8px; border-radius: 99px; font-size: 11px; font-weight: 600; }
.badge-success { background: #dcfce7; color: var(--success); }
.badge-danger  { background: #fee2e2; color: var(--danger); }
.badge-warning { background: #fef3c7; color: var(--warning); }
.badge-info    { background: #dbeafe; color: #1d4ed8; }

/* ── Upload zone ── */
.upload-zone {
  border: 2px dashed var(--border); border-radius: 10px; padding: 40px; text-align: center;
  cursor: pointer; transition: all .2s; background: #f8fafc;
}
.upload-zone:hover, .upload-zone.drag-over { border-color: var(--primary); background: #eff6ff; }
.upload-zone svg { width: 40px; height: 40px; color: var(--text-muted); margin-bottom: 10px; }
.upload-zone p  { color: var(--text-muted); font-size: 14px; }
.upload-zone strong { color: var(--primary); }

/* ── Steps ── */
.steps { display: flex; align-items: center; gap: 0; margin-bottom: 24px; flex-wrap: wrap; }
.step { display: flex; align-items: center; gap: 8px; flex: 1; }
.step-num { width: 28px; height: 28px; border-radius: 50%; background: var(--border); color: var(--text-muted); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 700; flex-shrink: 0; }
.step.active .step-num { background: var(--primary); color: #fff; }
.step.done   .step-num { background: var(--success); color: #fff; }
.step-label { font-size: 12px; color: var(--text-muted); }
.step.active .step-label { color: var(--primary); font-weight: 600; }
.step-line { flex: 1; height: 1px; background: var(--border); margin: 0 8px; min-width: 20px; }

/* ── Alertas ── */
.alert { padding: 12px 16px; border-radius: 8px; font-size: 13px; margin-bottom: 16px; display: flex; align-items: flex-start; gap: 10px; }
.alert-info    { background: #dbeafe; border: 1px solid #bfdbfe; color: #1e40af; }
.alert-success { background: #dcfce7; border: 1px solid #bbf7d0; color: #166534; }
.alert-warning { background: #fef3c7; border: 1px solid #fde68a; color: #92400e; }
.alert-danger  { background: #fee2e2; border: 1px solid #fecaca; color: #991b1b; }

/* ── Modal ── */
.modal-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5);
  z-index: 500; align-items: center; justify-content: center;
}
.modal-overlay.open { display: flex; }
.modal {
  background: var(--surface); border-radius: 12px; padding: 24px;
  width: 90%; max-width: 560px; max-height: 90vh; overflow-y: auto;
  box-shadow: 0 20px 60px rgba(0,0,0,.3);
}
.modal-title { font-size: 16px; font-weight: 700; color: var(--primary); margin-bottom: 20px; display: flex; justify-content: space-between; align-items: center; }
.modal-close { background: none; border: none; cursor: pointer; color: var(--text-muted); font-size: 20px; line-height: 1; }

/* ── Login ── */
.login-body { background: linear-gradient(135deg, var(--primary) 0%, #0f2540 100%); min-height: 100vh; display: flex; align-items: center; justify-content: center; }
.login-card { background: #fff; border-radius: 12px; padding: 36px; width: 340px; box-shadow: 0 8px 32px rgba(0,0,0,.25); }
.login-logo  { text-align: center; margin-bottom: 24px; }
.login-logo .brand { font-size: 20px; font-weight: 800; color: var(--primary); }
.login-logo .app   { font-size: 13px; color: var(--text-muted); margin-top: 2px; }

/* ── Responsive ── */
@media (max-width: 768px) {
  .sidebar { transform: translateX(-100%); }
  .sidebar.open { transform: translateX(0); }
  .main { margin-left: 0; }
  .hamburger { display: flex; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .cards-row { grid-template-columns: 1fr 1fr; }
}
.sidebar-overlay {
  display: none; position: fixed; inset: 0; background: rgba(0,0,0,.4); z-index: 150;
}
.sidebar-overlay.open { display: block; }

/* ── Utilidades ── */
.text-right  { text-align: right; }
.text-center { text-align: center; }
.text-muted  { color: var(--text-muted); }
.fw-bold     { font-weight: 700; }
.mt-0 { margin-top: 0; } .mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; }
.mb-0 { margin-bottom: 0; }
.d-flex { display: flex; } .align-center { align-items: center; } .gap-8 { gap: 8px; } .gap-12 { gap: 12px; }
.flex-1 { flex: 1; }
.hidden { display: none !important; }
.spinner { display: inline-block; width: 18px; height: 18px; border: 2px solid rgba(255,255,255,.3); border-top-color: #fff; border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.cop { font-variant-numeric: tabular-nums; }
.arl-1 { color: #16a34a; } .arl-2 { color: #65a30d; } .arl-3 { color: #d97706; } .arl-4 { color: #ea580c; } .arl-5 { color: #dc2626; }