/* Step 7 lake comparison (docs/plan/data_use.md): the selection bar and
   the comparison view. The table always scrolls inside its own explicit
   region — page-level horizontal overflow is a guarded regression. */

/* display:flex would defeat the hidden attribute's UA default. */
.comparison-bar[hidden] {
  display: none;
}

.comparison-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin: 0.4rem 0.6rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border-color, #d6dce5);
  border-radius: 6px;
  background: var(--surface-alt, #f0f4f9);
}

.comparison-bar__summary {
  margin: 0;
  font-size: 0.8rem;
  font-weight: 600;
}

.comparison-bar__lakes {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.comparison-bar__lake {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--border-color, #d6dce5);
  border-radius: 4px;
  background: var(--surface, #ffffff);
  font-size: 0.75rem;
}

.comparison-bar__remove,
.comparison-bar__clear {
  padding: 0.35rem 0.5rem;
  /* 44 px primary touch floor, matching the app convention. */
  min-height: 2.75rem;
  border: 1px solid var(--border-color, #d6dce5);
  border-radius: 4px;
  background: transparent;
  color: var(--text, #1f2a37);
  font-size: 0.72rem;
  cursor: pointer;
}

.comparison-bar__actions {
  display: flex;
  gap: 0.4rem;
  margin-left: auto;
}

.comparison-bar__open {
  padding: 0.45rem 0.8rem;
  min-height: 2.75rem;
  border: 1px solid var(--accent, #145ca8);
  border-radius: 4px;
  background: var(--accent, #145ca8);
  color: var(--accent-contrast, #ffffff);
  font-size: 0.8rem;
  cursor: pointer;
}

.comparison-bar__open:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

/* Entry-point toggle rendered in result cards, popups, and the sheet. */
.comparison-toggle {
  display: inline-block;
  margin: 0.3rem 0.4rem 0.3rem 0;
  padding: 0.5rem 0.7rem;
  min-height: 2.75rem;
  border: 1px solid var(--accent, #145ca8);
  border-radius: 4px;
  background: transparent;
  color: var(--accent, #145ca8);
  font-size: 0.8rem;
  cursor: pointer;
}

.comparison-toggle:disabled {
  border-color: var(--border-color, #d6dce5);
  color: var(--text-muted, #52616b);
  cursor: not-allowed;
}

.comparison-view {
  position: fixed;
  inset: 3vh 3vw;
  z-index: 1200;
  display: flex;
  flex-direction: column;
  border: 1px solid var(--border-color, #d6dce5);
  border-radius: 8px;
  background: var(--surface, #ffffff);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.comparison-view[hidden] {
  display: none;
}

.comparison-view__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.6rem 0.9rem;
  border-bottom: 1px solid var(--border-color, #d6dce5);
}

.comparison-view__title {
  margin: 0;
  font-size: 1.05rem;
}

.comparison-view__close {
  padding: 0.3rem 0.7rem;
  min-height: 2.75rem;
  min-width: 2.75rem;
  border: 1px solid var(--border-color, #d6dce5);
  border-radius: 4px;
  background: transparent;
  color: var(--text, #1f2a37);
  font-size: 1.1rem;
  cursor: pointer;
}

/* The explicit scroll region: wide tables scroll HERE, never the page.
   Focusable so keyboard users can scroll columns with the arrow keys. */
.comparison-view__scroll {
  flex: 1;
  overflow: auto;
  padding: 0.6rem 0.9rem;
}

.comparison-view__scroll:focus-visible {
  outline: 2px solid var(--accent, #145ca8);
  outline-offset: -2px;
}

.comparison-table {
  border-collapse: collapse;
  min-width: 100%;
  font-size: 0.8rem;
}

.comparison-table__caption {
  margin-bottom: 0.4rem;
  caption-side: top;
  text-align: left;
  font-size: 0.72rem;
  color: var(--text-muted, #52616b);
}

.comparison-table th,
.comparison-table td {
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--border-color, #d6dce5);
  text-align: left;
  vertical-align: top;
  min-width: 9rem;
}

.comparison-table thead th {
  background: var(--surface-alt, #f0f4f9);
}

/* Row headers stay visible while the columns scroll sideways. */
.comparison-table tbody th {
  position: sticky;
  left: 0;
  background: var(--surface-alt, #f0f4f9);
  font-weight: 600;
}

.comparison-table__lake-name {
  display: block;
  margin-bottom: 0.25rem;
}

.comparison-table__details {
  padding: 0.35rem 0.5rem;
  min-height: 2.75rem;
  border: 1px solid var(--accent, #145ca8);
  border-radius: 4px;
  background: transparent;
  color: var(--accent, #145ca8);
  font-size: 0.72rem;
  cursor: pointer;
}

/* Dense per-cell row-to-detail jump: secondary control, 32 px floor. */
.comparison-cell__jump {
  display: block;
  margin-top: 0.3rem;
  padding: 0.2rem 0.55rem;
  min-height: 2rem;
  border: 1px solid var(--accent, #145ca8);
  border-radius: 0.6rem;
  background: none;
  color: var(--accent, #145ca8);
  font-size: 0.72rem;
  cursor: pointer;
}

.comparison-cell__jump:hover,
.comparison-cell__jump:focus-visible {
  background: var(--accent, #145ca8);
  color: var(--accent-contrast, #ffffff);
}

.comparison-cell--missing {
  color: var(--text-muted, #52616b);
  font-style: italic;
}

.comparison-cell--loading {
  color: var(--text-muted, #52616b);
}

.comparison-cell--failed {
  font-style: italic;
}

@media (max-width: 480px) {
  .comparison-view {
    inset: 0;
    border-radius: 0;
  }

  .comparison-bar__actions {
    margin-left: 0;
  }
}