:root {
  --edu-brand: #820ad1;
  --edu-brand-dark: #5e0797;
  --edu-white: #ffffff;
  --edu-gray-light: #f4f2f7;
  --edu-gray-dark: #4a4a4a;
  --edu-black-soft: #1e1b23;
}

body {
  background-color: var(--edu-gray-light);
}

/* ---------- Login ---------- */
.edu-login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, var(--edu-brand) 0%, var(--edu-brand-dark) 100%);
}

.edu-login-card {
  width: 100%;
  max-width: 380px;
  background: var(--edu-white);
  border-radius: 16px;
  padding: 40px 32px;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.25);
}

.edu-login-brand {
  text-align: center;
  margin-bottom: 24px;
}

.edu-login-brand .edu-logo-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: linear-gradient(145deg, var(--edu-brand), var(--edu-brand-dark));
  color: #fff;
  font-size: 26px;
  margin-bottom: 12px;
}

.edu-login-brand h1 {
  font-size: 20px;
  font-weight: 800;
  color: var(--edu-black-soft);
  margin: 0;
}

.edu-login-brand p {
  color: #8a8a8a;
  font-size: 13px;
  margin: 4px 0 0;
}

.btn-edu-primary {
  background-color: var(--edu-brand);
  border-color: var(--edu-brand);
  color: #fff;
  font-weight: 600;
}

.btn-edu-primary:hover,
.btn-edu-primary:focus {
  background-color: var(--edu-brand-dark);
  border-color: var(--edu-brand-dark);
  color: #fff;
}

/* ---------- Layout AdminLTE con marca EDU360 ---------- */
.app-header,
.main-header {
  background-color: var(--edu-white) !important;
  border-bottom: 1px solid #e9e6ee;
}

.app-sidebar,
.main-sidebar {
  background-color: var(--edu-black-soft) !important;
}

.sidebar-brand {
  background-color: var(--edu-brand);
}

.nav-sidebar > .nav-item > .nav-link.active {
  background-color: var(--edu-brand) !important;
}

/* ---------- KPI cards ---------- */
.edu-kpi-card {
  border-radius: 12px;
  border: none;
  box-shadow: 0 2px 10px rgba(30, 27, 35, 0.06);
  overflow: hidden;
}

.edu-kpi-card .edu-kpi-icon {
  width: 46px;
  height: 46px;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: #fff;
  background: var(--edu-brand);
}

.edu-kpi-card .edu-kpi-label {
  font-size: 12.5px;
  color: #8a8a8a;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.edu-kpi-card .edu-kpi-value {
  font-size: 22px;
  font-weight: 800;
  color: var(--edu-black-soft);
}

.edu-card {
  border-radius: 12px;
  border: none;
  box-shadow: 0 2px 10px rgba(30, 27, 35, 0.06);
}

.edu-card .card-header {
  background: transparent;
  border-bottom: 1px solid #eee;
  font-weight: 700;
  color: var(--edu-black-soft);
}

.edu-live-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #2ecc71;
  margin-right: 6px;
  box-shadow: 0 0 0 rgba(46, 204, 113, 0.5);
  animation: edu-pulse 2s infinite;
}

@keyframes edu-pulse {
  0% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0.5); }
  70% { box-shadow: 0 0 0 8px rgba(46, 204, 113, 0); }
  100% { box-shadow: 0 0 0 0 rgba(46, 204, 113, 0); }
}