:root {
  --bsc-sidebar-bg: #1e2530;
  --bsc-sidebar-fg: #c9d1d9;
  --bsc-sidebar-fg-active: #ffffff;
  --bsc-accent: #2563eb;
  --bsc-bg: #f4f6f9;
  --bsc-sidebar-width: 260px;
  --bsc-sidebar-width-collapsed: 72px;
}

body {
  background-color: var(--bsc-bg);
  font-size: 0.925rem;
}

/* ---------- Sidebar ---------- */
.bsc-sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--bsc-sidebar-width);
  background-color: var(--bsc-sidebar-bg);
  color: var(--bsc-sidebar-fg);
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 0.2s ease, width 0.2s ease;
  z-index: 1040;
}

.bsc-sidebar.show {
  transform: translateX(0);
}

.bsc-sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1030;
}

.bsc-sidebar-backdrop.show {
  display: block;
}

.bsc-sidebar .brand {
  color: #fff;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.bsc-sidebar .nav-heading {
  text-transform: uppercase;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  color: #8b96a5;
  padding: 0.9rem 1.25rem 0.3rem;
}

.bsc-sidebar .nav-link {
  color: var(--bsc-sidebar-fg);
  padding: 0.55rem 1.25rem;
  border-left: 3px solid transparent;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.9rem;
}

.bsc-sidebar .nav-link i {
  font-size: 1.05rem;
  width: 1.2rem;
  text-align: center;
}

.bsc-sidebar .nav-link:hover {
  color: var(--bsc-sidebar-fg-active);
  background-color: rgba(255, 255, 255, 0.05);
}

.bsc-sidebar .nav-link.active {
  color: var(--bsc-sidebar-fg-active);
  background-color: rgba(37, 99, 235, 0.18);
  border-left-color: var(--bsc-accent);
  font-weight: 500;
}

.bsc-sidebar .nav-group > .nav-link {
  cursor: pointer;
}

.bsc-sidebar .nav-group .bi-chevron-down {
  margin-left: auto;
  transition: transform 0.15s ease;
  font-size: 0.75rem;
}

.bsc-sidebar .nav-group.open .bi-chevron-down {
  transform: rotate(180deg);
}

.bsc-sidebar .nav-subitems {
  display: none;
}

.bsc-sidebar .nav-group.open .nav-subitems {
  display: block;
}

.bsc-sidebar .nav-subitems .nav-link {
  padding-left: 2.6rem;
  font-size: 0.85rem;
}

/* ---------- Main area ---------- */
.bsc-main {
  min-height: 100vh;
  transition: margin-left 0.2s ease;
}

/* ---------- Sidebar collapsed (icon-only + tooltips) - desktop only.
   The class can be present at any viewport (restored from localStorage before
   the page paints), but it must have zero visual effect below the lg breakpoint -
   the mobile sidebar is always a full overlay with labels. ---------- */
@media (min-width: 992px) {
  .bsc-sidebar {
    /* "none", no "translateX(0)": cualquier transform (incluso identidad) convierte
       a este elemento en el contenedor de sus descendientes position:fixed (el
       flyout de grupos colapsados), rompiendo su posicionamiento respecto al viewport. */
    transform: none;
  }

  .bsc-main {
    margin-left: var(--bsc-sidebar-width);
  }

  .bsc-sidebar.collapsed ~ .bsc-main {
    margin-left: var(--bsc-sidebar-width-collapsed);
  }

  .bsc-sidebar.collapsed {
    width: var(--bsc-sidebar-width-collapsed);
  }

  .bsc-sidebar.collapsed .nav-label,
  .bsc-sidebar.collapsed .nav-heading,
  .bsc-sidebar.collapsed .nav-group > .nav-link .bi-chevron-down {
    display: none;
  }

  .bsc-sidebar.collapsed .brand {
    justify-content: center;
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }

  .bsc-sidebar.collapsed .nav-link {
    justify-content: center;
    padding-left: 0;
    padding-right: 0;
  }

  .bsc-sidebar.collapsed .nav-link i {
    margin: 0;
  }

  .bsc-sidebar.collapsed .nav-group {
    position: relative;
  }

  .bsc-sidebar.collapsed .nav-group:hover > .nav-link {
    color: var(--bsc-sidebar-fg-active);
    background-color: rgba(255, 255, 255, 0.05);
  }

  /* Collapsed mode ignores the click-driven .open state and shows the
     submenu as a hover flyout instead. */
  .bsc-sidebar.collapsed .nav-group.open .nav-subitems {
    display: none;
  }

  /* Posicionado via JS (initCollapsedFlyouts en app.js) con position:fixed,
     para no quedar recortado por el overflow-y:auto del sidebar. */
  .bsc-sidebar.collapsed .nav-group .nav-subitems.flyout-active {
    display: block;
    position: fixed;
    z-index: 1045;
    min-width: 220px;
    background-color: var(--bsc-sidebar-bg);
    box-shadow: 6px 0 16px rgba(0, 0, 0, 0.3);
    border-radius: 0 0.5rem 0.5rem 0;
    padding: 0.5rem 0;
  }

  .bsc-sidebar.collapsed .nav-group .nav-subitems .nav-link {
    justify-content: flex-start;
    padding: 0.55rem 1.1rem;
  }

  .bsc-sidebar.collapsed .nav-group .nav-subitems .nav-label {
    display: inline;
  }
}

.bsc-topbar {
  background-color: #fff;
  border-bottom: 1px solid #e5e9f0;
  padding: 0.6rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  position: sticky;
  top: 0;
  z-index: 1020;
}

.bsc-content {
  padding: 1.5rem;
}

.bsc-page-title {
  font-weight: 600;
  font-size: 1.35rem;
  margin-bottom: 1rem;
}

/* ---------- Widgets ---------- */
.bsc-kpi-card {
  border: 1px solid #e5e9f0;
  border-radius: 0.6rem;
  background: #fff;
  padding: 1rem 1.25rem;
}

.bsc-kpi-value {
  font-size: 1.7rem;
  font-weight: 700;
  line-height: 1.1;
}

.bsc-kpi-label {
  color: #6b7280;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.card {
  border: 1px solid #e5e9f0;
  border-radius: 0.6rem;
}

.badge-prioridad,
.badge-estado {
  font-weight: 500;
}

/* ---------- Gantt-lite ---------- */
.bsc-gantt-row {
  display: flex;
  align-items: center;
  margin-bottom: 0.5rem;
}

.bsc-gantt-label {
  width: 220px;
  flex-shrink: 0;
  font-size: 0.82rem;
  padding-right: 0.75rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.bsc-gantt-track {
  position: relative;
  flex: 1 1 auto;
  height: 1.4rem;
  background-color: #eef1f5;
  border-radius: 0.3rem;
}

.bsc-gantt-bar {
  position: absolute;
  top: 0;
  bottom: 0;
  border-radius: 0.3rem;
  background-color: var(--bsc-accent);
  overflow: hidden;
}

.bsc-gantt-bar .fill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  background-color: rgba(255, 255, 255, 0.35);
}

.bsc-gantt-bar.vencida {
  background-color: #dc3545;
}

.login-shell {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1e2530, #2563eb);
}

.login-card {
  width: 100%;
  max-width: 380px;
  border: none;
  border-radius: 0.75rem;
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.25);
}