/* Estructura principal: barra lateral + área de trabajo. */
.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 10;
  display: flex;
  width: var(--sidebar-width);
  flex-direction: column;
  padding: 28px 20px 22px;
  color: #ffffff;
  background: linear-gradient(165deg, #3f4dcc 0%, #28338f 100%);
}

.workspace {
  grid-column: 2;
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 8;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 92px;
  padding: 18px clamp(22px, 4vw, 56px);
  border-bottom: 1px solid var(--color-border);
  background: color-mix(in srgb, var(--color-background) 92%, transparent);
  backdrop-filter: blur(12px);
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.main-content {
  width: min(100%, calc(var(--content-width) + 112px));
  margin-inline: auto;
  padding: 38px clamp(22px, 4vw, 56px) 64px;
}

.content-section {
  display: grid;
  gap: 24px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 18px;
}

.section-heading h2,
.section-heading p {
  margin-bottom: 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}