:root {
  --parallel-fill: rgba(218, 166, 35, .24);
  --parallel-line: #a45b13;
  --parallel-active: #b62e52;
}

[data-theme="cyberpunk"] {
  --parallel-fill: rgba(255, 47, 135, .2);
  --parallel-line: #22e0d6;
  --parallel-active: #ff2f87;
}

[data-theme="corporate"] {
  --parallel-fill: rgba(255, 196, 61, .28);
  --parallel-line: #d16b00;
  --parallel-active: #0b5fff;
}

.comparison-body { height: 100vh; height: 100dvh; overflow: hidden; }
.comparison-shell {
  width: min(1500px, 100%); height: 100%; margin: 0 auto; padding: .8rem 1rem 1rem;
  display: grid; grid-template-rows: auto minmax(0, 1fr); gap: .75rem;
}

.comparison-header {
  position: relative; z-index: 5; background: var(--bg);
  border-bottom: 2px solid var(--border); padding-bottom: .65rem;
}
.comparison-title-row {
  display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem;
}
.comparison-title-row h1 {
  margin: 0; color: var(--title-fg); font: 700 1.55rem/1.2 var(--font-head);
}
.comparison-title-row h1 span { color: var(--muted); font-size: .65em; font-weight: 500; }
.comparison-title-row p { margin: .1rem 0 0; color: var(--muted); font-size: .85rem; }
.comparison-nav {
  display: flex; align-items: baseline; gap: .25rem;
  white-space: nowrap; font-size: .82rem;
}

.comparison-context {
  margin-top: .55rem; border: 1px solid var(--border); border-radius: 5px;
  background: var(--card-bg);
}
.comparison-context summary {
  cursor: pointer; padding: .35rem .55rem; color: var(--muted);
  font-size: .72rem; font-weight: 700; letter-spacing: .08em;
  text-transform: uppercase; user-select: none;
}
.context-copy {
  padding: .05rem .8rem .65rem;
  font-size: .88rem; line-height: 1.45;
}
.context-copy p { margin: .4rem 0; }
.context-copy blockquote {
  margin: .45rem 0; padding: .15rem .7rem; color: var(--muted);
  border-left: 3px solid var(--note-border);
}

.comparison-toolbar {
  display: flex; flex-wrap: wrap; align-items: center; gap: .55rem 1rem;
  padding-top: .55rem;
}
.comparison-theme-control { display: flex; align-items: center; gap: .4rem; }
.comparison-theme-control label { margin: 0; }
.comparison-theme-control select { min-width: 8rem; padding: .2rem .4rem; font-size: .82rem; }
.sync-control { display: inline-flex; align-items: center; gap: .35rem; font-size: .8rem; }
.parallel-nav { display: flex; align-items: center; gap: .35rem; }
.parallel-nav button {
  border: 1px solid var(--border); border-radius: 4px; padding: .22rem .5rem;
  background: var(--card-bg); color: var(--fg); cursor: pointer; font: inherit;
  font-size: .78rem;
}
.parallel-nav button:disabled { opacity: .45; cursor: default; }
#parallel-position {
  min-width: 7.5rem; text-align: center; color: var(--muted); font-size: .76rem;
}
.comparison-legend {
  display: flex; gap: .8rem; margin-left: auto; color: var(--muted); font-size: .72rem;
}
.comparison-legend span { display: inline-flex; align-items: center; gap: .3rem; }
.legend-swatch { width: 1.1rem; height: .7rem; background: var(--parallel-fill); }
.legend-swatch.language { border-bottom: 3px solid var(--parallel-line); }

.parallel-inspector {
  min-height: 2.8rem; margin-top: .5rem; padding: .4rem .65rem;
  display: flex; align-items: baseline; gap: .65rem;
  background: var(--note-bg); border-left: 3px solid var(--note-border);
  font-size: .8rem;
}
.parallel-inspector[hidden] { display: none; }
.parallel-inspector strong { color: var(--title-fg); white-space: nowrap; }
.parallel-analysis, .parallel-analysis p { margin: 0; color: var(--muted); }

.comparison-workspace {
  min-height: 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: .85rem;
}
.story-pane {
  min-width: 0; min-height: 0; display: grid; grid-template-rows: auto minmax(0, 1fr);
  overflow: hidden; background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 7px;
}
.story-heading {
  min-height: 5rem; padding: .55rem .8rem; display: flex; align-items: flex-end;
  justify-content: space-between; gap: 1rem; border-bottom: 1px solid var(--border);
}
.story-side {
  color: var(--muted); font-size: .62rem; font-weight: 700;
  letter-spacing: .1em; text-transform: uppercase;
}
.story-heading h2 {
  margin: .05rem 0 0; color: var(--title-fg); font: 700 1.05rem/1.25 var(--font-head);
}
.story-heading p { margin: .05rem 0 0; color: var(--byline-fg); font-size: .78rem; }
.story-heading small {
  max-width: 12rem; color: var(--muted); text-align: right; font-size: .64rem;
}
.story-scroll {
  min-height: 0; overflow-y: auto; overscroll-behavior: contain;
  scrollbar-color: var(--border) transparent;
}
.story-text {
  max-width: 48rem; margin: 0 auto; padding: 1.1rem 1.35rem 4rem;
  font-size: .94rem; line-height: 1.62;
}
.story-text p { margin: 0 0 1.05rem; }
.omission-block {
  position: relative; min-height: var(--omission-height); margin: .9rem 0 1.1rem;
  padding: .65rem; display: flex; flex-direction: column; align-items: center;
  justify-content: center; gap: .15rem; overflow: hidden;
  color: var(--muted); border: 1px solid var(--border); border-radius: 4px;
  background:
    repeating-linear-gradient(
      -45deg,
      transparent 0,
      transparent 7px,
      color-mix(in srgb, var(--border) 45%, transparent) 7px,
      color-mix(in srgb, var(--border) 45%, transparent) 9px
    );
  text-align: center;
}
.omission-block::before {
  content: ""; position: absolute; inset: 0;
  background: color-mix(in srgb, var(--card-bg) 76%, transparent);
}
.omission-label, .omission-position { position: relative; z-index: 1; }
.omission-label {
  padding: .12rem .4rem; background: var(--card-bg);
  font-size: .74rem; font-weight: 700; letter-spacing: .04em;
}
.omission-position { padding: 0 .3rem; background: var(--card-bg); font-size: .66rem; }

mark.parallel {
  position: relative; padding: .05em .08em; border-radius: 2px;
  background: var(--parallel-fill); color: inherit; cursor: pointer;
  box-decoration-break: clone; -webkit-box-decoration-break: clone;
  transition: background .15s, box-shadow .15s;
}
mark.parallel-language { border-bottom: 3px solid var(--parallel-line); }
mark.parallel::before {
  content: attr(data-number); display: inline-grid; place-items: center;
  width: 1.25em; height: 1.25em; margin-right: .22em; border-radius: 50%;
  background: var(--parallel-line); color: #fff; font: 700 .68em/1 var(--font-body);
  vertical-align: .08em;
}
mark.parallel:hover, mark.parallel:focus, mark.parallel.is-related {
  outline: none; box-shadow: 0 0 0 2px var(--parallel-line);
}
mark.parallel.is-active {
  background: var(--flash); box-shadow: 0 0 0 3px var(--parallel-active);
}

[data-theme="academic"] .comparison-title-row { text-align: left; }
[data-theme="academic"] .story-text { text-align: justify; hyphens: auto; }
[data-theme="cyberpunk"] .story-pane { box-shadow: 0 0 14px rgba(34, 224, 214, .08); }
[data-theme="cyberpunk"] .omission-label,
[data-theme="cyberpunk"] .omission-position { background: var(--card-bg); }
[data-theme="corporate"] .comparison-shell {
  border-top: 5px solid var(--accent); background: rgba(255,255,255,.42);
}
[data-theme="corporate"] .story-pane { box-shadow: 0 3px 12px rgba(15,36,68,.08); }

@media (max-width: 760px) {
  .comparison-body { height: auto; overflow: auto; }
  .comparison-shell { height: auto; min-height: 100vh; display: block; padding: .6rem; }
  .comparison-header {
    position: sticky; top: 0; padding: .35rem 0 .45rem;
    box-shadow: 0 4px 10px rgba(0,0,0,.08);
  }
  .comparison-title-row h1 { font-size: 1.25rem; }
  .comparison-title-row p { display: none; }
  .comparison-nav {
    flex-wrap: wrap; white-space: normal; justify-content: flex-end;
  }
  .comparison-legend { width: 100%; margin-left: 0; }
  .parallel-inspector { align-items: flex-start; flex-direction: column; gap: .1rem; }
  .parallel-analysis { display: none; }
  .comparison-workspace { display: block; }
  .story-pane { height: 68vh; min-height: 28rem; margin: .7rem 0; }
  .story-heading { min-height: 4.4rem; }
  .story-heading small { display: none; }
  .story-text { padding: 1rem 1rem 3rem; font-size: .9rem; }
}

@media (prefers-reduced-motion: reduce) {
  mark.parallel { transition: none; }
}