/* ============================================================
   ChampionsCup Admin — CSS principal
   Diseño: sidebar fijo oscuro + contenido claro
   Fuente: sistema (rápida, sin dependencias externas)
   ============================================================ */

/* --- Reset mínimo ----------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

/* --- Variables -------------------------------------------- */
:root {
  --sidebar-w:        240px;
  --sidebar-bg:       #0f1923;
  --sidebar-hover:    #1a2a3a;
  --sidebar-active:   #1e3a5f;
  --sidebar-border:   rgba(255,255,255,.06);
  --sidebar-text:     #a8b8c8;
  --sidebar-text-hi:  #ffffff;
  --accent:           #2a7fff;
  --accent-hover:     #1a6fee;
  --accent-light:     #e8f1ff;

  --body-bg:          #f0f2f5;
  --card-bg:          #ffffff;
  --card-border:      #e2e6ea;
  --card-radius:      10px;
  --card-shadow:      0 1px 4px rgba(0,0,0,.07);

  --text-primary:     #1a2332;
  --text-secondary:   #5a6a7a;
  --text-muted:       #9aa8b5;

  --success:  #22c55e; --success-bg: #f0fdf4; --success-text: #15803d;
  --warning:  #f59e0b; --warning-bg: #fffbeb; --warning-text: #92400e;
  --danger:   #ef4444; --danger-bg:  #fef2f2; --danger-text:  #991b1b;
  --info:     #3b82f6; --info-bg:    #eff6ff; --info-text:    #1d4ed8;

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SFMono-Regular', Consolas, 'Liberation Mono', monospace;
  --transition: .18s ease;
}

/* --- Base ------------------------------------------------- */
html, body { height: 100%; margin: 0; padding: 0; }
body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--text-primary);
  background: var(--body-bg);
  line-height: 1.5;
}

/* ============================================================
   LAYOUT SHELL
   ============================================================ */
.admin-shell {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar ---------------------------------------------- */
.sidebar {
  width: var(--sidebar-w);
  min-height: 100vh;
  background: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; left: 0; bottom: 0;
  z-index: 100;
  transition: transform var(--transition);
}

.sidebar-logo {
  padding: 20px 12px 16px 20px;
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex: 1;
  min-width: 0;
}
.sidebar-toggle-inline {
  background: transparent;
  border: none;
  color: var(--sidebar-text);
  cursor: pointer;
  padding: 6px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .15s, color .15s;
  flex-shrink: 0;
}
.sidebar-toggle-inline:hover { background: rgba(255,255,255,.08); color: var(--sidebar-text-hi); }
.sidebar-toggle-inline .chev-closed { display: none; }
body.sidebar-collapsed .sidebar-toggle-inline .chev-open { display: none; }
body.sidebar-collapsed .sidebar-toggle-inline .chev-closed { display: inline-flex; }

.sidebar-logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 6px;
  background: #fff;
  padding: 3px;
}
.sidebar-logo-text {
  font-size: 13px;
  font-weight: 600;
  color: var(--sidebar-text-hi);
  letter-spacing: .02em;
  line-height: 1.2;
}
.sidebar-logo-sub {
  font-size: 10px;
  color: var(--sidebar-text);
  font-weight: 400;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}
.sidebar-nav::-webkit-scrollbar { width: 4px; }
.sidebar-nav::-webkit-scrollbar-track { background: transparent; }
.sidebar-nav::-webkit-scrollbar-thumb { background: rgba(255,255,255,.1); border-radius: 2px; }

.nav-section-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--sidebar-text);
  padding: 14px 20px 4px;
  opacity: .6;
}
.nav-collapse-toggle {
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  user-select: none;
  transition: opacity .15s;
}
.nav-collapse-toggle:hover { opacity: 1; }
.nav-chevron {
  transition: transform .2s ease;
  flex-shrink: 0;
}
.nav-collapse-toggle.collapsed .nav-chevron {
  transform: rotate(-90deg);
}
.nav-section-items {
  overflow: hidden;
  max-height: 500px;
  transition: max-height .25s ease, opacity .2s ease;
  opacity: 1;
}
.nav-section-items.collapsed {
  max-height: 0;
  opacity: 0;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 20px;
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  border-left: 3px solid transparent;
  transition: background var(--transition), color var(--transition), border-color var(--transition);
  cursor: pointer;
  background: none;
  border-top: none;
  border-right: none;
  border-bottom: none;
  width: 100%;
  text-align: left;
}
.nav-item svg { width: 16px; height: 16px; opacity: .7; flex-shrink: 0; }
.nav-item:hover {
  background: var(--sidebar-hover);
  color: var(--sidebar-text-hi);
}
.nav-item:hover svg { opacity: 1; }
.nav-item.active {
  background: var(--sidebar-active);
  color: var(--sidebar-text-hi);
  border-left-color: var(--accent);
}
.nav-item.active svg { opacity: 1; }

.nav-badge {
  margin-left: auto;
  background: var(--accent);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 1px 6px;
  border-radius: 999px;
  min-width: 18px;
  text-align: center;
}
.nav-badge.danger { background: var(--danger); }

.sidebar-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.sidebar-avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  flex-shrink: 0;
}
.sidebar-user-name {
  font-size: 12px;
  font-weight: 500;
  color: var(--sidebar-text-hi);
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.sidebar-user-role {
  font-size: 10px;
  color: var(--sidebar-text);
  margin-top: 1px;
}
.sidebar-logout {
  color: var(--sidebar-text);
  text-decoration: none;
  font-size: 12px;
  padding: 4px;
  border-radius: 4px;
  transition: color var(--transition);
}
.sidebar-logout:hover { color: var(--danger); }

/* --- Contenido principal ---------------------------------- */
.main-content {
  margin-left: var(--sidebar-w);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.topbar {
  height: 56px;
  background: var(--card-bg);
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 16px;
  position: sticky;
  top: 0;
  z-index: 50;
}
.topbar-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-primary);
  flex: 1;
}
.topbar-breadcrumb {
  font-size: 12px;
  color: var(--text-muted);
}
.topbar-breadcrumb a { color: var(--text-secondary); text-decoration: none; }
.topbar-breadcrumb a:hover { color: var(--accent); }

.page-body {
  padding: 24px 28px;
  flex: 1;
}

.sidebar-toggle-mobile {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
  color: var(--text-secondary);
  border-radius: 4px;
}
.sidebar-toggle-mobile:hover { background: #f1f5f9; }

/* Sidebar colapsada (desktop): queda una tira estrecha con solo el toggle */
body.sidebar-collapsed .sidebar { width: 56px; }
body.sidebar-collapsed .main-content { margin-left: 56px; }
body.sidebar-collapsed .sidebar-logo { padding: 14px 6px; justify-content: center; }
body.sidebar-collapsed .sidebar-logo-link,
body.sidebar-collapsed .sidebar-nav,
body.sidebar-collapsed .sidebar-footer { display: none; }

/* ============================================================
   COMPONENTES
   ============================================================ */

/* Tarjetas ------------------------------------------------- */
.card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  box-shadow: var(--card-shadow);
}
.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
  gap: 10px;
}
.card-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
  flex: 1;
}
.card-body { padding: 20px; }
.card-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--card-border);
  background: #fafbfc;
  border-radius: 0 0 var(--card-radius) var(--card-radius);
}

/* KPI / Stat cards ----------------------------------------- */
.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}
.stat-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--card-radius);
  padding: 18px 20px;
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.stat-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.stat-icon svg { width: 20px; height: 20px; }
.stat-icon.blue   { background: var(--info-bg);    color: var(--info); }
.stat-icon.green  { background: var(--success-bg); color: var(--success-text); }
.stat-icon.orange { background: var(--warning-bg); color: var(--warning-text); }
.stat-icon.red    { background: var(--danger-bg);  color: var(--danger-text); }
.stat-body { flex: 1; }
.stat-value {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 12px;
  color: var(--text-secondary);
}
.stat-sub {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Tablas --------------------------------------------------- */
.table-wrap { overflow-x: auto; }
table.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}
.admin-table thead th {
  background: #f8f9fa;
  padding: 10px 14px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--card-border);
  white-space: nowrap;
}
.admin-table tbody td {
  padding: 11px 14px;
  border-bottom: 1px solid #f0f2f5;
  color: var(--text-primary);
  vertical-align: middle;
}
.admin-table tbody tr:last-child td { border-bottom: none; }
.admin-table tbody tr:hover td { background: #f8fbff; }

/* Badges --------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  white-space: nowrap;
}
.badge-success { background: var(--success-bg); color: var(--success-text); }
.badge-warning { background: var(--warning-bg); color: var(--warning-text); }
.badge-danger  { background: var(--danger-bg);  color: var(--danger-text);  }
.badge-info    { background: var(--info-bg);    color: var(--info-text);    }
.badge-neutral { background: #f0f2f5;           color: var(--text-secondary); }

/* Botones -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 7px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: all var(--transition);
  line-height: 1;
  white-space: nowrap;
}
.btn svg { width: 14px; height: 14px; }
.btn-primary   { background: var(--accent);  color: #fff; border-color: var(--accent); }
.btn-primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); }
.btn-secondary { background: #fff; color: var(--text-primary); border-color: var(--card-border); }
.btn-secondary:hover { background: #f8f9fa; }
.btn-success   { background: var(--success); color: #fff; border-color: var(--success); }
.btn-danger    { background: var(--danger);  color: #fff; border-color: var(--danger); }
.btn-warning   { background: var(--warning); color: #fff; border-color: var(--warning); }
.btn-sm        { padding: 5px 10px; font-size: 12px; }
.btn-icon      { padding: 7px; border-radius: 6px; background: #f0f2f5; border-color: #f0f2f5; color: var(--text-secondary); }
.btn-icon:hover { background: var(--card-border); color: var(--text-primary); }

/* Formularios ---------------------------------------------- */
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 5px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.form-control {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--card-border);
  border-radius: 7px;
  font-size: 13px;
  color: var(--text-primary);
  background: #fff;
  transition: border-color var(--transition), box-shadow var(--transition);
  font-family: var(--font);
}
.form-control:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(42,127,255,.12);
}
.form-control::placeholder { color: var(--text-muted); }
select.form-control { cursor: pointer; }

/* Progress bar --------------------------------------------- */
.progress {
  height: 8px;
  background: #e9ecef;
  border-radius: 4px;
  overflow: hidden;
}
.progress-bar {
  height: 100%;
  border-radius: 4px;
  transition: width .5s ease;
}
.progress-bar.green  { background: var(--success); }
.progress-bar.orange { background: var(--warning); }
.progress-bar.red    { background: var(--danger); }
.progress-bar.blue   { background: var(--accent); }

/* Toggle switch -------------------------------------------- */
.toggle { position: relative; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
.toggle input { position: absolute; opacity: 0; width: 0; height: 0; }
.toggle-track {
  width: 36px; height: 20px;
  background: #cdd2d8;
  border-radius: 10px;
  transition: background var(--transition);
  position: relative;
}
.toggle-thumb {
  position: absolute;
  top: 2px; left: 2px;
  width: 16px; height: 16px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
  box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.toggle input:checked + .toggle-track { background: var(--accent); }
.toggle input:checked + .toggle-track .toggle-thumb { transform: translateX(16px); }

/* Alertas -------------------------------------------------- */
.alert {
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 16px;
}
.alert svg { width: 16px; height: 16px; flex-shrink: 0; margin-top: 1px; }
.alert-warning { background: var(--warning-bg); color: var(--warning-text); border: 1px solid #fde68a; }
.alert-danger  { background: var(--danger-bg);  color: var(--danger-text);  border: 1px solid #fecaca; }
.alert-success { background: var(--success-bg); color: var(--success-text); border: 1px solid #bbf7d0; }
.alert-info    { background: var(--info-bg);    color: var(--info-text);    border: 1px solid #bfdbfe; }

/* Tabs ----------------------------------------------------- */
.tabs { display: flex; border-bottom: 2px solid var(--card-border); margin-bottom: 20px; gap: 0; }
.tab-btn {
  padding: 10px 18px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
}
.tab-btn:hover { color: var(--text-primary); }
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-pane { display: none; }
.tab-pane.active { display: block; }

/* Modales -------------------------------------------------- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.45);
  z-index: 900;
  display: none;
  align-items: center;
  justify-content: center;
}
.modal-backdrop.open { display: flex; }
.modal {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 20px 60px rgba(0,0,0,.2);
  width: 90%;
  max-width: 640px;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}
.modal-header {
  padding: 18px 22px;
  border-bottom: 1px solid var(--card-border);
  display: flex;
  align-items: center;
}
.modal-title { font-size: 15px; font-weight: 600; flex: 1; }
.modal-close { background: none; border: none; cursor: pointer; color: var(--text-muted); padding: 4px; border-radius: 4px; }
.modal-close:hover { color: var(--danger); background: var(--danger-bg); }
.modal-body { padding: 22px; overflow-y: auto; }
.modal-footer { padding: 14px 22px; border-top: 1px solid var(--card-border); display: flex; justify-content: flex-end; gap: 10px; }

/* Utilities ------------------------------------------------ */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.flex   { display: flex; }
.flex-between { display: flex; align-items: center; justify-content: space-between; }
.flex-center  { display: flex; align-items: center; }
.gap-8  { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mb-0  { margin-bottom: 0; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.text-muted    { color: var(--text-muted); }
.text-secondary { color: var(--text-secondary); }
.text-small    { font-size: 12px; }
.text-right    { text-align: right; }
.text-center   { text-align: center; }
.fw-600        { font-weight: 600; }
.w-100         { width: 100%; }

/* Spinner -------------------------------------------------- */
.spinner {
  width: 20px; height: 20px;
  border: 2px solid var(--card-border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Separador de sección ------------------------------------- */
.section-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}
.section-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
}

/* Toast de notificaciones ---------------------------------- */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  background: var(--text-primary);
  color: #fff;
  padding: 12px 16px;
  border-radius: 8px;
  font-size: 13px;
  box-shadow: 0 4px 16px rgba(0,0,0,.15);
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 260px;
  animation: slideUp .2s ease;
}
.toast.success { background: var(--success-text); }
.toast.error   { background: var(--danger-text); }
@keyframes slideUp { from { transform: translateY(16px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }
  .sidebar.open {
    transform: translateX(0);
  }
  .main-content {
    margin-left: 0;
  }
  .sidebar-toggle-mobile { display: inline-flex; }
  body.sidebar-collapsed .sidebar { width: var(--sidebar-w); }
  body.sidebar-collapsed .main-content { margin-left: 0; }
  body.sidebar-collapsed .sidebar-logo-link,
  body.sidebar-collapsed .sidebar-nav,
  body.sidebar-collapsed .sidebar-footer { display: flex; }
  .grid-2 { grid-template-columns: 1fr; }
  .grid-3 { grid-template-columns: 1fr 1fr; }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .grid-3 { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr; }
  .page-body { padding: 16px; }
}

/* Temporada selector (sidebar) */
.temporada-selector-wrap {
  display: flex; flex-wrap: wrap; gap: 6px;
  padding: 4px 12px 12px;
}
.temporada-chip {
  display: inline-block; padding: 4px 12px;
  border-radius: 6px; font-size: 12px; font-weight: 600;
  text-decoration: none; cursor: pointer;
  border: 1px solid transparent; transition: all .15s;
}
.temporada-chip.current { background: #dcfce7; color: #15803d; border-color: #bbf7d0; }
.temporada-chip.past    { background: #f1f5f9; color: #64748b; border-color: #e2e8f0; }
.temporada-chip.active.current { background: #15803d; color: #fff; border-color: #15803d; }
.temporada-chip.active.past    { background: #dc2626; color: #fff; border-color: #dc2626; }
.temporada-chip:hover { opacity: .85; }

/* Temporada badge (topbar) */
.topbar-temporada-badge {
  display: inline-block; padding: 2px 10px;
  border-radius: 999px; font-size: 11px; font-weight: 700;
  letter-spacing: .3px;
}
.topbar-temporada-badge.current { background: #15803d; color: #fff; }
.topbar-temporada-badge.past    { background: #dc2626; color: #fff; animation: tempPulse 2s ease-in-out infinite; }
@keyframes tempPulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: .7; }
}

/* Filtros de estado torneos */
.filtro-estado {
  background: #f1f5f9; border: 1px solid #e2e8f0; font-size: 12px; font-weight: 600;
  padding: 4px 12px; border-radius: 6px; cursor: pointer; transition: all .15s;
}
.filtro-estado:hover { background: #e2e8f0; }
.filtro-estado.active { background: #1e293b; color: #fff !important; border-color: #1e293b; }

/* Readonly banner */
.readonly-banner {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 16px; margin-bottom: 16px;
  background: #fef3c7; color: #92400e;
  border: 1px solid #fbbf24; border-radius: 8px;
  font-size: 13px; font-weight: 500;
}
.readonly-banner svg { flex-shrink: 0; color: #b45309; }
.readonly-banner-link {
  margin-left: auto; white-space: nowrap;
  color: #15803d; font-weight: 600; text-decoration: underline;
}

/* Temporada readonly: ocultar/deshabilitar controles de edición */
.temporada-readonly .btn-danger,
.temporada-readonly .btn-warning,
.temporada-readonly .btn-success,
.temporada-readonly [data-modal-open],
.temporada-readonly .btn-editar,
.temporada-readonly .btn-eliminar,
.temporada-readonly .btn-crear,
.temporada-readonly .action-btn-danger,
.temporada-readonly .action-btn-warning,
.temporada-readonly .action-btn-edit {
  opacity: .35; pointer-events: none; cursor: not-allowed;
}
.temporada-readonly form:not(.readonly-allow) button[type="submit"],
.temporada-readonly form:not(.readonly-allow) input[type="submit"] {
  opacity: .35; pointer-events: none; cursor: not-allowed;
}

/* Mini spinner para botones */
.spinner-sm {
  display: inline-block; width: 13px; height: 13px;
  border: 2px solid #ccc; border-top-color: #333;
  border-radius: 50%; animation: spinSm .6s linear infinite;
}
@keyframes spinSm { to { transform: rotate(360deg); } }