/**
 * Panel administrativo — reutiliza variables y estilos de la web pública (style.css)
 * Estructura: sidebar + topbar + contenido principal
 */
:root {
  --panel-sidebar-w: 260px;
  --panel-topbar-h: 64px;
  --panel-radius: var(--radius, 14px);
  --panel-radius-sm: var(--radius-sm, 10px);
}

/* Layout principal */
.panel {
  display: flex;
  min-height: 100vh;
  background: var(--color-surface);
}

.panel__sidebar {
  width: var(--panel-sidebar-w);
  min-width: var(--panel-sidebar-w);
  background: #fff;
  border-right: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 40;
  box-shadow: 4px 0 24px rgba(2, 74, 146, 0.06);
}

.panel__brand {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--color-text);
}
.panel__brand:hover { opacity: 0.9; }
.panel__brand-img {
  height: 40px;
  width: auto;
  border-radius: 10px;
  background: var(--color-primary);
  padding: 6px;
  display: block;
}

.panel__nav {
  flex: 1;
  padding: 16px 12px;
  overflow-y: auto;
}

.panel__nav-label {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-muted);
  padding: 12px 12px 8px;
  margin: 0;
}

.panel__nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: var(--panel-radius-sm);
  color: var(--color-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 14px;
  transition: background 0.2s, color 0.2s;
  margin-bottom: 2px;
}
.panel__nav a:hover {
  background: rgba(2, 74, 146, 0.08);
  color: var(--color-primary);
}
.panel__nav a.is-active {
  background: linear-gradient(135deg, rgba(2, 74, 146, 0.12), rgba(30, 64, 175, 0.08));
  color: var(--color-primary);
  border: 1px solid rgba(2, 74, 146, 0.2);
}

.panel__nav-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.85;
}

.panel__user {
  padding: 16px;
  border-top: 1px solid var(--color-border);
}
.panel__user-name {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 4px;
}
.panel__user-role {
  font-size: 12px;
  color: var(--color-muted);
  margin-bottom: 12px;
}
.panel__user .button,
.panel__user .button--ghost {
  width: 100%;
  justify-content: center;
  padding: 10px 16px;
  font-size: 14px;
}

.panel__sidebar-footer {
  padding: 12px 20px 16px;
  border-top: 1px solid var(--color-border);
}
.panel__copyright {
  font-size: 11px;
  color: var(--color-muted);
  opacity: 0.8;
  display: block;
  text-align: center;
}

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

.panel__topbar {
  height: var(--panel-topbar-h);
  min-height: var(--panel-topbar-h);
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 30;
  box-shadow: 0 2px 12px rgba(2, 74, 146, 0.06);
}

.panel__topbar-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.panel__topbar-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.panel__topbar-logo img {
  height: 36px;
  width: auto;
  border-radius: 10px;
  background: var(--color-primary);
  padding: 5px;
}
.panel__topbar-logo:hover { opacity: 0.9; }

.panel__page-title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
}

/* Avatar y menú de usuario */
.panel__avatar-wrap {
  position: relative;
}

.panel__avatar-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 12px;
  border-radius: var(--panel-radius-sm);
  border: 1px solid var(--color-border);
  background: #fff;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  transition: background 0.2s, border-color 0.2s;
}
.panel__avatar-btn:hover {
  background: var(--color-surface);
  border-color: rgba(2, 74, 146, 0.25);
}
.panel__avatar-btn.is-open {
  border-color: var(--color-primary);
  background: rgba(2, 74, 146, 0.06);
  box-shadow: 0 0 0 2px rgba(2, 74, 146, 0.1);
}

.panel__avatar-circle {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.panel__avatar-name {
  max-width: 140px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.panel__avatar-chevron {
  width: 16px;
  height: 16px;
  opacity: 0.7;
  transition: transform 0.2s;
}
.panel__avatar-btn.is-open .panel__avatar-chevron {
  transform: rotate(180deg);
}

.panel__avatar-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 220px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--panel-radius-sm);
  box-shadow: var(--shadow-md);
  padding: 8px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.2s, visibility 0.2s, transform 0.2s;
  z-index: 50;
}
.panel__avatar-wrap.is-open .panel__avatar-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.panel__avatar-dropdown a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 16px;
  color: var(--color-text);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
}
.panel__avatar-dropdown a:hover {
  background: rgba(2, 74, 146, 0.08);
  color: var(--color-primary);
}
.panel__avatar-dropdown a svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.85;
}
.panel__avatar-dropdown .divider {
  height: 1px;
  background: var(--color-border);
  margin: 6px 0;
}

.panel__topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.panel__topbar a {
  color: var(--color-muted);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
}
.panel__topbar a:hover { color: var(--color-primary); }

.panel__content {
  flex: 1;
  padding: 24px;
}

/* Cards del panel (misma estética que la web pública) */
.panel-card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98), rgba(248, 250, 252, 0.9));
  border: 1px solid var(--color-border);
  border-radius: var(--panel-radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s;
}
.panel-card:hover { box-shadow: var(--shadow-md); }

.panel-card__title {
  margin: 0 0 16px;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}

/* Stats / KPI cards */
.panel-stats {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 28px;
}
.panel-stat {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--panel-radius);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.2s;
}
.panel-stat:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
.panel-stat__value {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
  margin-bottom: 4px;
}
.panel-stat__label {
  font-size: 13px;
  color: var(--color-muted);
  font-weight: 500;
  margin-bottom: 12px;
}
.panel-stat__link {
  font-size: 13px;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
}
.panel-stat__link:hover { text-decoration: underline; }

/* Tablas */
.panel-table-wrap {
  overflow-x: auto;
  border-radius: var(--panel-radius-sm);
  border: 1px solid var(--color-border);
  background: #fff;
}
.panel-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.panel-table th,
.panel-table td {
  padding: 14px 16px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}
.panel-table th {
  background: rgba(2, 74, 146, 0.06);
  font-weight: 600;
  color: var(--color-text);
}
.panel-table tr:last-child td { border-bottom: none; }
.panel-table tr:hover td { background: rgba(248, 250, 252, 0.8); }
.panel-table a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
}
.panel-table a:hover { text-decoration: underline; }

/* Badges de estado */
.panel-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.panel-badge--active {
  background: rgba(34, 197, 94, 0.15);
  color: #15803d;
}
.panel-badge--pending {
  background: rgba(234, 179, 8, 0.15);
  color: #a16207;
}
.panel-badge--cancelled,
.panel-badge--failed {
  background: rgba(239, 68, 68, 0.12);
  color: #b91c1c;
}
.panel-badge--paid {
  background: rgba(2, 74, 146, 0.12);
  color: var(--color-primary);
}

/* Formularios del panel */
.panel-form .form-row { margin-bottom: 20px; }
.panel-form label {
  display: block;
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text);
  margin-bottom: 6px;
}
.panel-form input[type="text"],
.panel-form input[type="email"],
.panel-form input[type="password"],
.panel-form input[type="number"],
.panel-form select,
.panel-form textarea {
  width: 100%;
  max-width: 480px;
  padding: 12px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--panel-radius-sm);
  font-size: 14px;
  font-family: inherit;
  background: #fff;
  transition: border-color 0.2s;
}
.panel-form input:focus,
.panel-form select:focus,
.panel-form textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(2, 74, 146, 0.15);
}
.panel-form .helptext { font-size: 12px; color: var(--color-muted); margin-top: 4px; }
.panel-form .errorlist { color: #b91c1c; font-size: 13px; margin: 4px 0 0; padding: 0; list-style: none; }

.panel-form-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* Breadcrumb / barra de acciones */
.panel-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 20px;
}
.panel-breadcrumb {
  font-size: 14px;
  color: var(--color-muted);
}
.panel-breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}
.panel-breadcrumb a:hover { text-decoration: underline; }

/* Empty state */
.panel-empty {
  text-align: center;
  padding: 48px 24px;
  color: var(--color-muted);
  font-size: 15px;
}
.panel-empty .button { margin-top: 16px; }

/* Responsive: sidebar colapsable en móvil */
@media (max-width: 768px) {
  .panel__sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
  }
  .panel__sidebar.is-open { transform: translateX(0); }
  .panel__main { margin-left: 0; }
  .panel__content { padding: 16px; }
  .panel-stats { grid-template-columns: 1fr; }
}