/* Clear Cut Coverage — compare feature: strip, row action, comparison dialog.
 * Uses only the tokens from DESIGN.md §3. Generic classes (.btn, .tool, .icon, .dot)
 * come from site.css; scoped fallbacks for .icon and .dot are defined below so the
 * feature still renders if site.css is late. */

/* ---------- scoped fallbacks (never global) ---------- */
.compare-strip .icon,
.compare .icon,
.action--compare .icon {
  width: 18px; height: 18px; fill: none; stroke: currentColor;
  stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; flex: none;
}
.compare-strip .dot,
.compare .dot {
  display: inline-block; width: 8px; height: 8px; border-radius: 50%;
  background: var(--ink-3); flex: none;
}
.compare-strip .dot--liberal,      .compare .dot--liberal      { background: var(--liberal); }
.compare-strip .dot--neutral,      .compare .dot--neutral      { background: var(--neutral); }
.compare-strip .dot--conservative, .compare .dot--conservative { background: var(--conservative); }

.compare-vh {
  position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.compare-clip { position: fixed; left: -9999px; top: 0; width: 1px; height: 1px; opacity: 0; }
body.compare-lock { overflow: hidden; }

/* ---------- strip ---------- */
.compare-strip {
  padding: 18px 0 10px;
  border-bottom: 1px solid var(--rule);
}
.compare-strip__head {
  display: flex; flex-wrap: wrap; align-items: baseline; gap: 4px 14px;
  margin-bottom: 12px;
}
.compare-strip__head h2 {
  margin: 0;
  font-family: var(--font-serif); font-size: 1.25rem; font-weight: 500; line-height: 1.2;
  color: var(--ink); letter-spacing: -0.005em;
}
.compare-strip__head p {
  margin: 0;
  font-family: var(--font-sans); font-size: 0.75rem; font-weight: 500; color: var(--ink-3);
}
.compare-strip__list {
  list-style: none; margin: 0; padding: 0 0 6px;
  display: flex; gap: 12px;
  overflow-x: auto; overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory; scroll-padding-inline: 0;
  scrollbar-width: thin; scrollbar-color: var(--rule) transparent;
  -webkit-overflow-scrolling: touch;
}
.compare-item {
  flex: 0 0 300px; max-width: 80vw; display: flex; scroll-snap-align: start;
}
.compare-item__btn {
  display: flex; flex-direction: column; align-items: flex-start; gap: 8px;
  position: relative; width: 100%; min-height: 100%; margin: 0; padding: 12px 14px 11px;
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--rule); border-radius: var(--radius);
  font: inherit; text-align: left; cursor: pointer;
  transition: border-color .15s ease, background-color .15s ease;
}
.compare-item__btn:hover { border-color: var(--ink-3); background: var(--surface); }
.compare-item__btn:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }
.compare-item__leans { display: inline-flex; gap: 5px; align-items: center; height: 10px; }
.compare-item__title {
  display: -webkit-box; -webkit-box-orient: vertical; -webkit-line-clamp: 3; overflow: hidden;
  font-family: var(--font-serif); font-size: 1.0625rem; font-weight: 500; line-height: 1.3;
}
.compare-item__meta {
  margin-top: auto;
  font-family: var(--font-sans); font-size: 0.75rem; font-weight: 500; color: var(--ink-3);
}

/* ---------- row action (inside .story__actions) ---------- */
.action--compare {
  display: inline-flex; align-items: center; gap: 4px;
  width: auto; height: 28px; padding: 0 8px 0 6px; margin: 0;
  background: transparent; border: 0; border-radius: var(--radius);
  color: var(--ink-3); font-family: var(--font-sans); font-size: 0.75rem; font-weight: 500; line-height: 1;
  cursor: pointer; white-space: nowrap;
}
.action--compare .icon { width: 16px; height: 16px; }
.action--compare:hover { color: var(--ink); background: var(--surface-2); }
.action--compare:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; }

/* ---------- dialog ---------- */
.compare-overlay {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 24px;
  background: rgba(20, 18, 12, .55);
  animation: compare-fade .15s ease-out;
}
.compare-overlay[hidden] { display: none; }
@keyframes compare-fade { from { opacity: 0; } to { opacity: 1; } }
@media (prefers-reduced-motion: reduce) { .compare-overlay { animation: none; } }

.compare {
  display: flex; flex-direction: column;
  width: 100%; max-width: 1100px; max-height: calc(100vh - 48px); max-height: calc(100dvh - 48px);
  background: var(--surface); color: var(--ink);
  border: 1px solid var(--rule); border-radius: var(--radius);
  box-shadow: var(--shadow-pop);
  font-family: var(--font-sans);
}
.compare:focus { outline: none; }
.compare:focus-visible { outline: 2px solid var(--focus); outline-offset: -2px; }

.compare__head {
  position: relative; flex: none;
  padding: 20px 64px 16px 24px;
  border-bottom: 1px solid var(--rule);
}
.compare__eyebrow {
  margin: 0 0 6px;
  font-size: 0.75rem; font-weight: 500; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3);
}
.compare__title {
  margin: 0;
  font-family: var(--font-serif); font-size: 1.6rem; font-weight: 500; line-height: 1.2; letter-spacing: -0.005em;
  color: var(--ink);
}
.compare__meta { margin: 8px 0 0; font-size: 0.75rem; font-weight: 500; color: var(--ink-3); }
.compare__close { position: absolute; top: 16px; right: 16px; }

.compare__body { flex: 1 1 auto; overflow-y: auto; overscroll-behavior: contain; padding: 20px 24px 24px; }

.compare__status {
  margin: 0 0 16px;
  font-size: 0.875rem; color: var(--ink-3);
}
.compare__status.is-error { color: var(--negative); }
.compare__status[hidden] { display: none; }

.compare__columns {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 28px;
}
.compare__col { min-width: 0; }
.compare__col-title {
  margin: 0; padding: 8px 0 6px;
  border-top: 2px solid var(--ink); border-bottom: 1px solid var(--rule);
  font-size: 0.75rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--ink);
  display: flex; justify-content: space-between; align-items: baseline;
}
.compare__col[data-lean="liberal"]      .compare__col-title { color: var(--liberal);      border-top-color: var(--liberal); }
.compare__col[data-lean="neutral"]      .compare__col-title { color: var(--neutral);      border-top-color: var(--neutral); }
.compare__col[data-lean="conservative"] .compare__col-title { color: var(--conservative); border-top-color: var(--conservative); }
.compare__count { font-weight: 500; letter-spacing: 0; color: var(--ink-3); }

.compare__list { list-style: none; margin: 0; padding: 0; }
.compare__item { display: flex; flex-direction: column; gap: 4px; padding: 12px 0; border-top: 1px solid var(--rule); }
.compare__item:first-child { border-top: 0; }
.compare__source { font-size: 0.75rem; font-weight: 600; color: var(--ink-2); }
.compare__link {
  font-family: var(--font-serif); font-size: 1.0625rem; font-weight: 500; line-height: 1.3;
  color: var(--ink); text-decoration: none;
}
.compare__link:hover { text-decoration: underline; text-decoration-thickness: 1px; text-underline-offset: 3px; }
.compare__link:focus-visible { outline: 2px solid var(--focus); outline-offset: 2px; border-radius: 2px; }
.compare__item-meta { display: flex; align-items: center; gap: 10px; margin-top: 2px; font-size: 0.75rem; font-weight: 500; color: var(--ink-3); }
.compare__time { color: var(--ink-3); }

.compare .tone {
  display: inline-flex; align-items: center; gap: 5px;
  font-size: 0.75rem; font-weight: 500; text-transform: lowercase; color: var(--ink-3);
}
.compare .tone::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.compare .tone--positive { color: var(--positive); }
.compare .tone--negative { color: var(--negative); }
.compare .tone--neutral  { color: var(--ink-3); }

.compare__empty { margin: 14px 0 0; font-family: var(--font-serif); font-size: 1rem; color: var(--ink-3); }
.compare__empty[hidden] { display: none; }

/* neutral summary */
.compare__summary {
  margin-top: 24px; padding: 16px 18px 14px;
  border-left: 3px solid var(--ink); background: transparent;
}
.compare__summary[hidden] { display: none; }
.compare__summary-title {
  margin: 0 0 8px;
  font-size: 0.75rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--ink);
}
.compare__summary-body {
  font-family: var(--font-serif); font-size: 1.0625rem; line-height: 1.55; color: var(--ink-2); max-width: 68ch;
}
.compare__summary-body p { margin: 0 0 .75em; }
.compare__summary-body p:last-child { margin-bottom: 0; }
.compare__summary.is-loading { border-left-color: var(--rule); }
.compare__summary.is-loading .compare__summary-body { color: var(--ink-3); font-style: italic; }
.compare__summary.is-error { border-left-color: var(--negative); }
.compare__summary.is-error .compare__summary-body { color: var(--negative); font-family: var(--font-sans); font-size: 0.875rem; }
.compare__summary-meta { margin: 8px 0 0; font-size: 0.75rem; font-weight: 500; color: var(--ink-3); }
.compare__summary-meta:empty { display: none; }

/* footer */
.compare__foot {
  flex: none; display: flex; flex-wrap: wrap; gap: 10px; justify-content: flex-end;
  padding: 14px 24px;
  border-top: 1px solid var(--rule);
}
.compare__foot .btn { display: inline-flex; align-items: center; gap: 6px; }
.compare__foot .btn.is-done { color: var(--positive); border-color: var(--positive); }
.compare__foot .btn[disabled] { opacity: .6; cursor: default; }

/* ---------- responsive: sheet mode ---------- */
@media (max-width: 900px) {
  .compare__columns { grid-template-columns: 1fr; gap: 24px 0; }
}
@media (max-width: 768px) {
  .compare-item { flex-basis: 260px; }
  .compare-overlay { padding: 0; align-items: stretch; }
  .compare {
    max-width: none; max-height: none; height: 100%;
    border: 0; border-radius: 0; box-shadow: none;
  }
  .compare__head { padding: 16px 60px 14px var(--gutter); }
  .compare__title { font-size: 1.35rem; }
  .compare__close { top: 12px; right: 12px; }
  .compare__body { padding: 16px var(--gutter) 24px; }
  .compare__foot {
    padding: 12px var(--gutter);
    padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
  }
  .compare__foot .btn { flex: 1 1 auto; justify-content: center; }
}