.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: grid;
  grid-template-columns: 44px 190px minmax(220px, 720px) minmax(220px, 1fr);
  gap: 16px;
  align-items: center;
  padding: 14px 24px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg) 92%, transparent);
  backdrop-filter: blur(14px);
}

.shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: calc(100vh - 65px);
}

.sidebar {
  padding: 18px 12px;
  border-right: 1px solid var(--line);
}

.content {
  width: min(1680px, 100%);
  margin: 0 auto;
  padding: 28px 24px 48px;
}

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

.notes-grid {
  display: block;
}

body[data-view-mode="grid"] .notes-grid {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.masonry-column {
  display: grid;
  flex: 1 1 0;
  min-width: 0;
  gap: 14px;
}

body[data-view-mode="list"] .content {
  width: min(820px, 100%);
}

body[data-view-mode="list"] .notes-grid {
  display: block;
}

.drawer-overlay {
  display: none;
}

@media (max-width: 760px) {
  .topbar {
    grid-template-columns: 40px minmax(0, 1fr) auto;
    gap: 4px;
    padding: 8px 10px 10px;
  }

  .search {
    grid-column: 1 / -1;
    grid-row: 2;
    min-height: 44px;
  }

  .shell {
    display: block;
    min-height: calc(100vh - 105px);
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    z-index: 20;
    display: block;
    width: min(82vw, 304px);
    padding: 12px 10px 24px;
    overflow-y: auto;
    border-right: 1px solid var(--line);
    background: var(--surface);
    box-shadow: 16px 0 34px rgb(0 0 0 / 22%);
    transform: translateX(-104%);
    transition: transform 180ms ease;
  }

  body.drawer-open .sidebar {
    transform: translateX(0);
  }

  .drawer-overlay {
    position: fixed;
    inset: 0;
    z-index: 19;
    display: block;
    border: 0;
    background: rgb(0 0 0 / 28%);
  }

  .drawer-overlay[hidden] {
    display: none;
  }

  .content {
    padding: 14px 10px 32px;
  }

  body[data-view-mode="list"] .notes-grid {
    display: block;
  }

  body[data-view-mode="grid"] .notes-grid {
    gap: 10px;
  }

  .masonry-column {
    gap: 10px;
  }
}

@media (max-width: 420px) {
  .topbar {
    grid-template-columns: 38px minmax(0, 1fr) auto;
    padding-inline: 8px;
  }
}