.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 270px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  gap: 28px;
  padding: 28px 22px;
  background: var(--color-sidebar);
  border-right: 1px solid var(--color-border);
}

.sidebar__brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.sidebar__brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--color-primary);
  color: #fff;
  font-weight: 800;
}

.sidebar__brand strong {
  display: block;
  font-size: 1.05rem;
}

.sidebar__brand small {
  color: var(--color-text-muted);
}

.sidebar__nav {
  display: grid;
  gap: 8px;
}

.sidebar__link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 12px;
  color: var(--color-text-muted);
  font-weight: 600;
  transition: background-color 0.2s ease, color 0.2s ease;
}

.sidebar__link:hover,
.sidebar__link.is-active {
  background: var(--color-primary-soft);
  color: var(--color-primary);
}

.sidebar__footer {
  margin-top: auto;
  padding: 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.sidebar__footer p,
.sidebar__footer span {
  color: var(--color-text-muted);
}

.sidebar__footer strong {
  display: block;
  margin: 8px 0 6px;
  font-size: 1.1rem;
}

.content-shell {
  min-width: 0;
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px var(--container-padding);
  background: rgba(255, 255, 255, 0.92);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(12px);
}

.navbar__title {
  font-size: 1.7rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.navbar__subtitle {
  margin-top: 6px;
  color: var(--color-text-muted);
}

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

.profile-chip {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: 999px;
  background: var(--color-surface);
}

.profile-chip__avatar {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: #dbe5ff;
  color: var(--color-primary);
  font-weight: 800;
}

.profile-chip__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  font-size: 0.85rem;
}

.profile-chip__meta span,
.profile-chip__caret {
  color: var(--color-text-muted);
}

.main-content {
  padding: var(--container-padding);
}

.page {
  display: grid;
  gap: 24px;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.section-block,
.table-card,
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.section-block {
  padding: 22px;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 18px;
}

.section-heading h2 {
  font-size: 1.2rem;
  font-weight: 800;
}

.section-heading p {
  margin-top: 4px;
  color: var(--color-text-muted);
}

@media (max-width: 1024px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .navbar,
  .section-heading {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  :root {
    --container-padding: 16px;
  }

  .sidebar {
    padding: 18px 16px;
  }

  .sidebar__footer {
    display: none;
  }

  .sidebar__nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .sidebar__link {
    justify-content: center;
    text-align: center;
    padding: 10px;
  }

  .sidebar__link span:first-child {
    display: none;
  }

  .profile-chip__meta,
  .profile-chip__caret {
    display: none;
  }
}
/* ==========================
   MOBILE RESPONSIVE
========================== */

@media (max-width: 768px) {
  .app-shell {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    height: auto;
    display: flex;
    overflow-x: auto;
  }

  .content-shell {
    width: 100%;
    padding: 12px;
  }

  .main-content {
    padding: 12px;
  }

  .navbar {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
  }
}