:root{
  --radius: 18px;
  --soft: rgba(17, 24, 39, 0.06);
  --soft2: rgba(17, 24, 39, 0.10);

  --bg: #f5f7fb;            /* fondo general (clarito, no blanco) */
  --card: rgba(255,255,255,0.78);
  --border: rgba(15, 23, 42, 0.10);
  --text: #0f172a;
  --muted: #64748b;

  --sidebar-bg: #ffffff;
  --sidebar-border: rgba(15, 23, 42, 0.08);

  --primary: #2563eb;
  --primary-soft: rgba(37, 99, 235, 0.12);
}

* { box-sizing: border-box; }

.bg-app{
  background:
    radial-gradient(900px 500px at 20% 10%, rgba(59,130,246,0.10), transparent 60%),
    radial-gradient(900px 500px at 80% 0%, rgba(16,185,129,0.08), transparent 55%),
    radial-gradient(900px 500px at 40% 90%, rgba(99,102,241,0.10), transparent 55%),
    var(--bg);
  color: var(--text);
}

.card-app{
  border-radius: var(--radius);
  box-shadow: 0 10px 35px rgba(15, 23, 42, 0.08);
  background: var(--card);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}

.form-control, .btn{
  border-radius: 14px;
}

.form-control:focus{
  box-shadow: 0 0 0 .25rem rgba(59, 130, 246, 0.18);
}

.brand-mark{
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: rgba(255,255,255,0.65);
  border: 1px solid rgba(15, 23, 42, 0.08);
  display:flex;
  align-items:center;
  justify-content:center;
  backdrop-filter: blur(8px);
}

.brand-dot{
  width: 18px;
  height: 18px;
  border-radius: 999px;
  background: linear-gradient(145deg, rgba(59,130,246,1), rgba(99,102,241,1));
  box-shadow: 0 10px 18px rgba(59,130,246,0.25);
}

.alert{
  border-radius: 14px;
}

/* ===== Layout / Sidebar ===== */

.app-shell{
  min-height: 100vh;
  display: flex;
}

.sidebar{
  width: 280px;
  background: var(--sidebar-bg);
  border-right: 1px solid var(--sidebar-border);
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  transform: translateX(-100%);
  transition: transform .18s ease;
  z-index: 1040;
  display: flex;
  flex-direction: column;
}

.sidebar.open{
  transform: translateX(0);
}

.sidebar-header{
  padding: 16px 16px 12px 16px;
  border-bottom: 1px solid var(--sidebar-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.sidebar-brand{
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-brand .brand-mini{
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: rgba(37, 99, 235, 0.10);
  border: 1px solid rgba(37, 99, 235, 0.18);
  display:flex;
  align-items:center;
  justify-content:center;
}

.sidebar-brand .brand-mini i{
  color: var(--primary);
  font-size: 18px;
}

.sidebar-title{
  line-height: 1.1;
}
.sidebar-title .name{
  font-weight: 700;
  letter-spacing: .2px;
}
.sidebar-title .sub{
  font-size: 12px;
  color: var(--muted);
}

.sidebar-nav{
  padding: 12px;
  overflow: auto;
  flex: 1;
}

.nav-item{
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background .12s ease, border-color .12s ease, transform .06s ease;
}

.nav-item i{
  font-size: 18px;
  color: #334155;
}

.nav-item:hover{
  background: rgba(15, 23, 42, 0.04);
  transform: translateY(-1px);
}

.nav-item.active{
  background: var(--primary-soft);
  border-color: rgba(37, 99, 235, 0.20);
}

.nav-item.active i{
  color: var(--primary);
}

.sidebar-footer{
  padding: 12px;
  border-top: 1px solid var(--sidebar-border);
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.user-pill{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.03);
  border: 1px solid rgba(15, 23, 42, 0.06);
}

.user-pill .who{
  min-width: 0;
}
.user-pill .who .u{
  font-weight: 600;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.user-pill .who .r{
  font-size: 12px;
  color: var(--muted);
}

.app-main{
  flex: 1;
  width: 100%;
  padding-left: 0; /* en desktop lo movemos con media query */
}

.topbar{
  position: sticky;
  top: 0;
  z-index: 1030;
  backdrop-filter: blur(10px);
  background: rgba(255,255,255,0.70);
  border-bottom: 1px solid var(--border);
}

.topbar .btn{
  border-radius: 14px;
}

.overlay{
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.32);
  z-index: 1035;
  opacity: 0;
  pointer-events: none;
  transition: opacity .15s ease;
}

.overlay.show{
  opacity: 1;
  pointer-events: auto;
}

/* Desktop: sidebar siempre disponible si el usuario lo deja abierto */
@media (min-width: 992px){
  .sidebar{
    transform: translateX(0);
    position: fixed;
  }

  .app-main{
    padding-left: 280px;
  }

  /* Si el usuario colapsa en desktop */
  .sidebar.collapsed{
    transform: translateX(-100%);
  }
  .sidebar.collapsed ~ .app-main{
    padding-left: 0;
  }
}

/* Pequeños detalles de carga */
.skeleton{
  background: linear-gradient(90deg, rgba(15,23,42,0.05), rgba(15,23,42,0.10), rgba(15,23,42,0.05));
  background-size: 200% 100%;
  animation: sk 1.2s ease-in-out infinite;
  border-radius: 12px;
}
@keyframes sk{
  0%{ background-position: 200% 0; }
  100%{ background-position: -200% 0; }
}
/* =========================
   Permisos de menú por rol (SIN JS, SIN parpadeo)
   Default: usuario (más restrictivo)
   Roles: usuario / admin / superadmin
   ========================= */

/* Default (sin data-role todavía) => como usuario */
.nav-item[data-page="empresas.html"],
.nav-item[data-page="usuarios.html"],
.nav-item[data-page="parametros.html"],
.nav-item[data-page="estadisticas.html"]{
  display: none !important;
}

/* Admin: ve todo menos Empresas */
html[data-role="admin"] .nav-item[data-page="usuarios.html"],
html[data-role="admin"] .nav-item[data-page="parametros.html"],
html[data-role="admin"] .nav-item[data-page="estadisticas.html"]{
  display: flex !important;
}
html[data-role="admin"] .nav-item[data-page="empresas.html"]{
  display: none !important;
}

/* Superadmin: ve TODO */
html[data-role="superadmin"] .nav-item[data-page="empresas.html"],
html[data-role="superadmin"] .nav-item[data-page="usuarios.html"],
html[data-role="superadmin"] .nav-item[data-page="parametros.html"],
html[data-role="superadmin"] .nav-item[data-page="estadisticas.html"]{
  display: flex !important;
}
/* ===== FIX: Modal siempre arriba (evita pantalla gris bloqueando clicks) ===== */
.modal-backdrop{
  z-index: 2000 !important;
}
.modal{
  z-index: 2010 !important;
}

/* Tu overlay del sidebar nunca debe tapar modales */
.overlay{
  z-index: 1500 !important;
}
.sidebar{
  z-index: 1600 !important;
}