.auth-page {
  display: grid;
  min-height: 100vh;
  grid-template-columns: 34% 66%;
  overflow: hidden;
  border: 1px solid var(--color-border-strong);
  background: #070707;
}

.auth-brand {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: var(--space-12);
  padding: var(--space-16) var(--space-10);
  border-right: 1px solid var(--color-border-strong);
  background:
    linear-gradient(rgba(7, 7, 7, 0.94), rgba(7, 7, 7, 0.94)),
    url("/src/shared/assets/mockup-derived/auth-banquet.png") center / cover;
}

.auth-panel {
  display: grid;
  place-items: center;
  padding: var(--space-12);
  background:
    linear-gradient(90deg, rgba(7, 7, 7, 0.38), rgba(7, 7, 7, 0.88)),
    url("/src/shared/assets/mockup-derived/auth-banquet.png") center / cover;
}

.auth-copy {
  max-width: 520px;
  text-align: center;
}

.auth-card {
  width: min(100%, 620px);
}

.app-shell {
  display: grid;
  min-height: 100vh;
  grid-template-columns: var(--sidebar-width) minmax(0, 1fr);
}

.sidebar {
  position: fixed;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 30;
  display: flex;
  width: var(--sidebar-width);
  height: 100dvh;
  flex-direction: column;
  gap: var(--space-6);
  padding: 24px 18px 20px;
  border-right: 1px solid rgba(255, 255, 255, 0.09);
  background: #0b0d0d;
}

.sidebar-footer {
  margin-top: auto;
  display: grid;
  gap: var(--space-5);
  padding: 0 8px;
}

.main {
  grid-column: 2;
  min-width: 0;
  background:
    radial-gradient(circle at 90% 8%, rgba(214, 173, 88, 0.08), transparent 26%),
    linear-gradient(135deg, #0b0d0d 0%, #151818 48%, #090a0a 100%);
}

.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  min-height: var(--header-height);
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: 0 var(--space-8);
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  background: rgba(10, 12, 12, 0.88);
}

.workspace {
  width: min(100%, 1536px);
  margin: 0 auto;
  padding: var(--space-8);
}

.workspace.flush {
  width: 100%;
  padding: 0;
}

.page-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-6);
}

.page-heading__copy {
  display: grid;
  gap: var(--space-1);
}

.page-heading__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-3);
}

.dashboard-grid,
.page-grid,
.event-workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: var(--space-5);
}

.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-4);
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stack-sm {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.split-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.section-spacing {
  margin-top: var(--space-5);
}

@media (max-width: 1180px) {
  .dashboard-grid,
  .page-grid,
  .event-workspace {
    grid-template-columns: 1fr;
  }

  .metrics-grid,
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .auth-page,
  .app-shell {
    grid-template-columns: 1fr;
    padding: 0 0 78px;
  }

  .main {
    grid-column: auto;
  }

  .auth-brand {
    padding: var(--space-8);
  }

  .auth-panel {
    padding: var(--space-6);
  }

  .sidebar {
    position: fixed;
    top: auto;
    right: 0;
    bottom: 0;
    left: 0;
    height: auto;
    width: auto;
    display: block;
    padding: 8px 10px max(8px, env(safe-area-inset-bottom));
    border-width: 1px 0 0;
    border-radius: 0;
    background: rgba(8, 10, 11, 0.97);
    backdrop-filter: blur(18px);
  }

  .sidebar > .brand-mark,
  .sidebar-footer,
  .nav-label,
  .sidebar-context {
    display: none;
  }

  .nav,
  .nav-group {
    width: 100%;
  }

  .nav-group {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 6px;
  }

  .nav-link {
    display: flex;
    min-height: 58px;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    padding: 6px;
    font-family: var(--font-body);
    font-size: 11px;
  }

  .nav-icon .icon {
    width: 21px;
    height: 21px;
  }

  .app-header {
    position: sticky;
    min-height: 62px;
    flex-direction: row;
    padding: 10px var(--space-4);
    backdrop-filter: blur(18px);
  }

  .app-search {
    width: min(100%, 420px);
  }

  .header-meta .user-chip > span:last-child {
    display: none;
  }

  .page-heading {
    flex-direction: column;
  }

  .page-heading__actions {
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .workspace {
    padding: var(--space-4);
  }

  .metrics-grid,
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .nav-link {
    min-height: 52px;
    font-size: 10px;
    white-space: nowrap;
  }

  .nav-link .nav-icon {
    display: none;
  }
}