/* ============================================================
   ERP ALQUILER — CSS Principal
   Diseño profesional, minimalista, modo claro/oscuro
   ============================================================ */

/* ── VARIABLES ──────────────────────────────────────────── */
:root {
  /* Colores modo claro */
  --color-bg:          #F0F4F9;
  --color-surface:     #FFFFFF;
  --color-surface-2:   #F8FAFC;
  --color-border:      #E2E8F0;
  --color-border-2:    #CBD5E1;

  /* Brand */
  --color-primary:     #1B4F8A;
  --color-primary-h:   #2563A8;
  --color-primary-l:   #EFF6FF;
  --color-accent:      #F5A623;
  --color-accent-h:    #D48A10;

  /* Texto */
  --color-text:        #0F1729;
  --color-text-2:      #334155;
  --color-text-3:      #64748B;
  --color-text-inv:    #FFFFFF;

  /* Estado */
  --color-success:     #16A34A;
  --color-success-bg:  #DCFCE7;
  --color-warning:     #D97706;
  --color-warning-bg:  #FEF3C7;
  --color-danger:      #DC2626;
  --color-danger-bg:   #FEE2E2;
  --color-info:        #0891B2;
  --color-info-bg:     #E0F2FE;

  /* Sidebar */
  --sidebar-bg:        #0A1628;
  --sidebar-w:         240px;
  --sidebar-w-col:     64px;
  --sidebar-text:      rgba(255,255,255,0.7);
  --sidebar-text-act:  #FFFFFF;
  --sidebar-item-act:  #1B4F8A;
  --sidebar-border:    rgba(255,255,255,0.07);

  /* Layout */
  --topbar-h:          60px;
  --radius-sm:         6px;
  --radius-md:         10px;
  --radius-lg:         14px;
  --shadow-sm:         0 1px 3px rgba(0,0,0,0.08);
  --shadow-md:         0 4px 16px rgba(0,0,0,0.10);
  --shadow-lg:         0 10px 40px rgba(0,0,0,0.14);

  /* Tipografía */
  --font-sans:         'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:         'JetBrains Mono', 'Fira Code', monospace;

  /* Transiciones */
  --transition:        0.2s ease;
  --transition-slow:   0.35s ease;
}

/* Modo oscuro */
[data-theme="dark"] {
  --color-bg:          #0D1117;
  --color-surface:     #161B22;
  --color-surface-2:   #1C2330;
  --color-border:      #21262D;
  --color-border-2:    #30363D;
  --color-text:        #E6EDF3;
  --color-text-2:      #B1BAC4;
  --color-text-3:      #768390;
  --sidebar-bg:        #0D1117;
  --sidebar-border:    #21262D;
  --color-primary-l:   #0D2044;
  --shadow-sm:         0 1px 3px rgba(0,0,0,0.3);
  --shadow-md:         0 4px 16px rgba(0,0,0,0.4);
}

/* ── RESET ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-primary-h); }
img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ── LAYOUT PRINCIPAL ───────────────────────────────────── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

/* ── SIDEBAR ────────────────────────────────────────────── */
.sidebar {
  width: var(--sidebar-w);
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 200;
  transition: width var(--transition-slow);
  overflow: hidden;
}
.sidebar.collapsed {
  width: var(--sidebar-w-col);
}

/* Logo */
.sidebar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  height: var(--topbar-h);
  border-bottom: 1px solid var(--sidebar-border);
  text-decoration: none;
  flex-shrink: 0;
}
.sidebar-logo-mark {
  width: 36px; height: 36px;
  background: var(--color-accent);
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  font-weight: 900; font-size: 14px;
  color: var(--sidebar-bg);
  flex-shrink: 0;
}
.sidebar-logo-text {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--transition);
}
.sidebar-logo-text small {
  display: block;
  font-size: 10px;
  font-weight: 400;
  color: rgba(255,255,255,0.4);
  letter-spacing: 0.5px;
}
.sidebar.collapsed .sidebar-logo-text { opacity: 0; pointer-events: none; }

/* Nav */
.sidebar-nav { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 8px 0; }
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 2px; }

.nav-section {
  padding: 16px 16px 4px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.25);
  white-space: nowrap;
  overflow: hidden;
  transition: opacity var(--transition);
}
.sidebar.collapsed .nav-section { opacity: 0; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  margin: 1px 8px;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 13.5px;
  font-weight: 500;
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
  cursor: pointer;
}
.nav-item:hover {
  background: rgba(255,255,255,0.06);
  color: var(--sidebar-text-act);
}
.nav-item.active {
  background: var(--sidebar-item-act);
  color: var(--sidebar-text-act);
}
.nav-item svg {
  width: 17px; height: 17px;
  flex-shrink: 0;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}
.nav-item-text {
  transition: opacity var(--transition);
  overflow: hidden;
}
.sidebar.collapsed .nav-item-text { opacity: 0; }

/* Badge en nav */
.nav-badge {
  margin-left: auto;
  background: var(--color-danger);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 20px;
  min-width: 18px;
  text-align: center;
  transition: opacity var(--transition);
}
.sidebar.collapsed .nav-badge { opacity: 0; }

/* Tooltip en collapsed */
.sidebar.collapsed .nav-item:hover::after {
  content: attr(data-tooltip);
  position: absolute;
  left: calc(var(--sidebar-w-col) - 4px);
  top: 50%;
  transform: translateY(-50%);
  background: #1e293b;
  color: #fff;
  font-size: 12px;
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  white-space: nowrap;
  z-index: 300;
  box-shadow: var(--shadow-md);
  pointer-events: none;
}

/* Footer sidebar */
.sidebar-footer {
  border-top: 1px solid var(--sidebar-border);
  padding: 12px;
}
.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: background var(--transition);
}
.sidebar-user:hover { background: rgba(255,255,255,0.06); }
.user-avatar {
  width: 34px; height: 34px;
  background: var(--color-primary);
  border-radius: 50%;
  display: grid; place-items: center;
  font-weight: 700; font-size: 13px;
  color: #fff; flex-shrink: 0;
}
.user-info { flex: 1; min-width: 0; overflow: hidden; transition: opacity var(--transition); }
.sidebar.collapsed .user-info { opacity: 0; }
.user-name { color: #fff; font-size: 12px; font-weight: 600; truncate: ellipsis; white-space: nowrap; overflow: hidden; }
.user-role { color: rgba(255,255,255,0.4); font-size: 11px; }

/* ── TOPBAR ─────────────────────────────────────────────── */
.topbar {
  position: fixed;
  top: 0;
  left: var(--sidebar-w);
  right: 0;
  height: var(--topbar-h);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 24px;
  gap: 16px;
  z-index: 100;
  transition: left var(--transition-slow);
}
.sidebar.collapsed ~ .main-wrapper .topbar {
  left: var(--sidebar-w-col);
}

.topbar-toggle {
  width: 36px; height: 36px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  color: var(--color-text-3);
  transition: all var(--transition);
}
.topbar-toggle:hover {
  background: var(--color-bg);
  color: var(--color-text);
}
.topbar-toggle svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }

.topbar-breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--color-text-3);
  flex: 1;
}
.topbar-breadcrumb a { color: var(--color-text-3); }
.topbar-breadcrumb a:hover { color: var(--color-primary); }
.topbar-breadcrumb .sep { opacity: 0.4; }
.topbar-breadcrumb .current { color: var(--color-text); font-weight: 600; }

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

/* Botón tema */
.btn-theme {
  width: 36px; height: 36px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  color: var(--color-text-3);
  transition: all var(--transition);
}
.btn-theme:hover { background: var(--color-bg); color: var(--color-text); }
.btn-theme svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }

/* Notificaciones */
.topbar-notif {
  position: relative;
}
.btn-notif {
  width: 36px; height: 36px;
  background: transparent;
  border: none;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
  color: var(--color-text-3);
  transition: all var(--transition);
}
.btn-notif:hover { background: var(--color-bg); color: var(--color-text); }
.btn-notif svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 2; }
.notif-count {
  position: absolute;
  top: 2px; right: 2px;
  background: var(--color-danger);
  color: #fff;
  font-size: 9px; font-weight: 700;
  width: 16px; height: 16px;
  border-radius: 50%;
  display: grid; place-items: center;
  border: 2px solid var(--color-surface);
}

/* ── MAIN CONTENT ───────────────────────────────────────── */
.main-wrapper {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  transition: margin-left var(--transition-slow);
}
.sidebar.collapsed ~ .main-wrapper {
  margin-left: var(--sidebar-w-col);
}
.page-content {
  margin-top: var(--topbar-h);
  padding: 24px;
  flex: 1;
}

/* ── PAGE HEADER ────────────────────────────────────────── */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 24px;
  gap: 16px;
  flex-wrap: wrap;
}
.page-header-left h1 {
  font-size: 22px;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.5px;
  line-height: 1.2;
}
.page-header-left p {
  font-size: 13px;
  color: var(--color-text-3);
  margin-top: 3px;
}
.page-header-right {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* ── KPI CARDS ──────────────────────────────────────────── */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.kpi-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: box-shadow var(--transition), transform var(--transition);
}
.kpi-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}
.kpi-icon {
  width: 42px; height: 42px;
  border-radius: var(--radius-sm);
  display: grid; place-items: center;
}
.kpi-icon svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.8; }
.kpi-label { font-size: 12px; color: var(--color-text-3); font-weight: 500; }
.kpi-value { font-size: 28px; font-weight: 900; color: var(--color-text); line-height: 1; letter-spacing: -1px; }
.kpi-sub { font-size: 11px; color: var(--color-text-3); }

/* KPI colores */
.kpi-blue   .kpi-icon { background: var(--color-primary-l); color: var(--color-primary); }
.kpi-green  .kpi-icon { background: var(--color-success-bg); color: var(--color-success); }
.kpi-amber  .kpi-icon { background: var(--color-warning-bg); color: var(--color-warning); }
.kpi-red    .kpi-icon { background: var(--color-danger-bg);  color: var(--color-danger); }
.kpi-cyan   .kpi-icon { background: var(--color-info-bg);    color: var(--color-info); }

/* ── CARDS ──────────────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.card-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: 8px;
}
.card-title svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 2; color: var(--color-primary); }
.card-body { padding: 20px; }
.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--color-border);
  background: var(--color-surface-2);
}

/* ── TABLAS ─────────────────────────────────────────────── */
.table-wrapper { overflow-x: auto; }
table.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13.5px;
}
.data-table thead tr {
  background: var(--color-surface-2);
  border-bottom: 1px solid var(--color-border);
}
.data-table th {
  padding: 10px 14px;
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-3);
  letter-spacing: 0.5px;
  text-transform: uppercase;
  white-space: nowrap;
}
.data-table td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  vertical-align: middle;
}
.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover td { background: var(--color-surface-2); }
.data-table .cell-mono { font-family: var(--font-mono); font-size: 12px; }
.data-table .cell-right { text-align: right; }
.data-table .cell-center { text-align: center; }

/* ── BADGES / ESTADO ────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-success { background: var(--color-success-bg); color: var(--color-success); }
.badge-warning { background: var(--color-warning-bg); color: var(--color-warning); }
.badge-danger  { background: var(--color-danger-bg);  color: var(--color-danger); }
.badge-info    { background: var(--color-info-bg);    color: var(--color-info); }
.badge-neutral { background: var(--color-surface-2);  color: var(--color-text-3); border: 1px solid var(--color-border); }
.badge-primary { background: var(--color-primary-l);  color: var(--color-primary); }
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }

/* ── BOTONES ────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: all var(--transition);
  white-space: nowrap;
  line-height: 1;
}
.btn svg {
  width: 15px; height: 15px;
  stroke: currentColor; fill: none;
  stroke-width: 2;
  flex-shrink: 0;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-h); color: #fff; }
.btn-accent { background: var(--color-accent); color: #0A1628; }
.btn-accent:hover { background: var(--color-accent-h); }
.btn-success { background: var(--color-success); color: #fff; }
.btn-success:hover { background: #15803d; color: #fff; }
.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; color: #fff; }
.btn-outline { background: transparent; color: var(--color-text-2); border: 1px solid var(--color-border-2); }
.btn-outline:hover { background: var(--color-bg); color: var(--color-text); }
.btn-ghost { background: transparent; color: var(--color-text-3); }
.btn-ghost:hover { background: var(--color-bg); color: var(--color-text); }

.btn-sm { padding: 6px 11px; font-size: 12px; }
.btn-lg { padding: 12px 22px; font-size: 15px; }
.btn-icon { padding: 7px; border-radius: var(--radius-sm); }
.btn-block { width: 100%; justify-content: center; }

/* ── FORMULARIOS ────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 18px; }
.form-grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 18px; }
.col-full { grid-column: 1 / -1; }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-label {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-text-2);
}
.form-label .required { color: var(--color-danger); margin-left: 3px; }

.form-control {
  padding: 9px 12px;
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-sm);
  font-size: 14px;
  color: var(--color-text);
  background: var(--color-surface);
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-control:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27,79,138,0.1);
}
.form-control::placeholder { color: var(--color-text-3); }
textarea.form-control { resize: vertical; min-height: 90px; }
select.form-control { cursor: pointer; }
.form-control.is-invalid { border-color: var(--color-danger); }
.form-control.is-valid { border-color: var(--color-success); }
.form-hint { font-size: 11.5px; color: var(--color-text-3); }
.form-error { font-size: 11.5px; color: var(--color-danger); }

.form-section {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  color: var(--color-primary);
  padding-bottom: 10px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 16px;
  margin-top: 8px;
}

/* ── ALERTAS ────────────────────────────────────────────── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
}
.alert svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 1px; stroke: currentColor; fill: none; stroke-width: 2; }
.alert-success { background: var(--color-success-bg); color: #15803d; border: 1px solid #bbf7d0; }
.alert-warning { background: var(--color-warning-bg); color: #92400e; border: 1px solid #fde68a; }
.alert-danger  { background: var(--color-danger-bg);  color: #b91c1c; border: 1px solid #fecaca; }
.alert-info    { background: var(--color-info-bg);    color: #0c4a6e; border: 1px solid #bae6fd; }

/* ── TOAST NOTIFICATIONS ────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 14px 18px;
  min-width: 280px;
  max-width: 380px;
  box-shadow: var(--shadow-lg);
  pointer-events: all;
  animation: toastIn 0.3s ease;
  font-size: 13px;
}
.toast.removing { animation: toastOut 0.3s ease forwards; }
.toast-icon { width: 20px; height: 20px; flex-shrink: 0; }
.toast-msg { flex: 1; color: var(--color-text); }
.toast-close { background: none; border: none; color: var(--color-text-3); font-size: 16px; padding: 0 4px; }
.toast-success .toast-icon { color: var(--color-success); }
.toast-error   .toast-icon { color: var(--color-danger); }
.toast-warning .toast-icon { color: var(--color-warning); }
.toast-info    .toast-icon { color: var(--color-info); }
.toast-success { border-left: 3px solid var(--color-success); }
.toast-error   { border-left: 3px solid var(--color-danger); }
.toast-warning { border-left: 3px solid var(--color-warning); }
.toast-info    { border-left: 3px solid var(--color-info); }

@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}
@keyframes toastOut {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(20px); }
}

/* ── MODAL ──────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 500;
  display: grid;
  place-items: center;
  padding: 20px;
  backdrop-filter: blur(2px);
}
.modal-overlay.hidden { display: none; }
.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 540px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-lg);
  animation: modalIn 0.25s ease;
}
.modal-lg { max-width: 780px; }
.modal-xl { max-width: 1000px; }
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  border-bottom: 1px solid var(--color-border);
}
.modal-title { font-size: 16px; font-weight: 700; color: var(--color-text); }
.modal-close { background: none; border: none; color: var(--color-text-3); font-size: 20px; padding: 4px; border-radius: var(--radius-sm); transition: all var(--transition); }
.modal-close:hover { background: var(--color-bg); color: var(--color-text); }
.modal-body { padding: 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--color-border); display: flex; justify-content: flex-end; gap: 10px; }

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(-10px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

/* ── PAGINACIÓN ─────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 12px 20px;
  border-top: 1px solid var(--color-border);
}
.pagination-info { font-size: 12px; color: var(--color-text-3); margin-right: auto; }
.page-btn {
  min-width: 32px; height: 32px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-2);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}
.page-btn:hover { background: var(--color-bg); color: var(--color-text); }
.page-btn.active { background: var(--color-primary); color: #fff; border-color: var(--color-primary); }
.page-btn:disabled { opacity: 0.4; cursor: not-allowed; }

/* ── SKELETON LOADING ───────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, var(--color-surface-2) 50%, var(--color-border) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

/* ── BÚSQUEDA ───────────────────────────────────────────── */
.search-box {
  position: relative;
  display: inline-flex;
  align-items: center;
}
.search-box svg {
  position: absolute;
  left: 10px;
  width: 15px; height: 15px;
  stroke: var(--color-text-3);
  fill: none; stroke-width: 2;
  pointer-events: none;
}
.search-box input {
  padding: 8px 12px 8px 34px;
  border: 1px solid var(--color-border-2);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  font-size: 13px;
  width: 240px;
  transition: all var(--transition);
}
.search-box input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(27,79,138,0.1);
  width: 280px;
}

/* ── DÍAS RESTANTES ─────────────────────────────────────── */
.dias-ok   { color: var(--color-success); font-weight: 700; }
.dias-warn { color: var(--color-warning); font-weight: 700; }
.dias-venc { color: var(--color-danger);  font-weight: 700; }

/* ── DROPDOWN ───────────────────────────────────────────── */
.dropdown { position: relative; }
.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  right: 0;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  min-width: 180px;
  z-index: 300;
  overflow: hidden;
  animation: dropIn 0.15s ease;
}
.dropdown-menu.hidden { display: none; }
@keyframes dropIn {
  from { opacity: 0; transform: translateY(-6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.dropdown-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  font-size: 13px;
  color: var(--color-text-2);
  cursor: pointer;
  transition: background var(--transition);
  text-decoration: none;
  border: none;
  background: none;
  width: 100%;
}
.dropdown-item:hover { background: var(--color-bg); color: var(--color-text); }
.dropdown-item svg { width: 15px; height: 15px; stroke: currentColor; fill: none; stroke-width: 2; }
.dropdown-divider { border-top: 1px solid var(--color-border); margin: 4px 0; }

/* ── UTILIDADES ─────────────────────────────────────────── */
.text-muted  { color: var(--color-text-3); }
.text-sm     { font-size: 12px; }
.text-xs     { font-size: 11px; }
.font-bold   { font-weight: 700; }
.font-mono   { font-family: var(--font-mono); }
.mt-1 { margin-top:  4px; }
.mt-2 { margin-top:  8px; }
.mt-3 { margin-top: 12px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.hidden { display: none !important; }

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 1024px) {
  :root { --sidebar-w: 220px; }
}

@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
    width: var(--sidebar-w) !important;
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-wrapper {
    margin-left: 0 !important;
  }
  .topbar {
    left: 0 !important;
  }
  .page-content {
    padding: 16px;
  }
  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .form-grid-2, .form-grid-3 {
    grid-template-columns: 1fr;
  }
  .page-header {
    flex-direction: column;
  }

  /* Overlay móvil */
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 199;
  }
  .sidebar-overlay.show { display: block; }
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
  .topbar-breadcrumb { display: none; }
}