/* LP showcase components (mo26-C2). All classes prefixed lpx- — the plain .lp-*
   namespace belongs to app.js's fallback renderer (see assets/data/SCHEMA.md),
   so this sheet must never re-style fallback classes. Every color comes from
   style.css tokens (dark-first; manual [data-theme] + prefers-color-scheme are
   handled entirely by style.css). Verdict chips reuse the shared
   .verdict-chip.vp-* classes; this sheet only adds layout, never verdict colors. */

.lpx-scope {
  color: var(--ink);
  font-family: inherit;
  min-width: 0;
}

/* ---------- shared bits ---------- */
.lpx-topic, .lpx-case, .lpx-detail { min-width: 0; }

.lpx-kicker {
  margin: 0 0 6px;
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
}

/* layout-only additions on top of style.css's .verdict-chip.vp-* rules */
.verdict-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  white-space: nowrap;
}
.verdict-chip .lpx-chip-ico { font-style: normal; font-size: 0.82em; }

/* ---------- topic card (R1~R5 section) ---------- */
.lpx-topic {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  scroll-margin-top: 20px;
  overflow: hidden;
}

.lpx-topic-head {
  position: relative;
  padding: 26px 26px 20px;
  background:
    radial-gradient(560px 190px at 12% -30%, var(--hero-glow-1), transparent 70%),
    radial-gradient(420px 160px at 95% -40%, var(--hero-glow-2), transparent 72%);
}
.lpx-topic-head::after {
  /* hero glow line under the header */
  content: "";
  position: absolute;
  left: 26px; right: 26px; bottom: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent 80%);
  opacity: 0.5;
}
.lpx-topic-head h3 {
  margin: 0;
  font-size: 1.42rem;
  line-height: 1.3;
  letter-spacing: -0.01em;
  color: var(--ink-strong);
}
.lpx-topic-tagline { margin: 8px 0 0; color: var(--ink-soft); max-width: 640px; }

.lpx-topic-body { padding: 20px 26px 24px; }

.lpx-report-headline {
  margin: 0 0 10px;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
}
.lpx-report-body p { margin: 8px 0 0; color: var(--ink-soft); }

.lpx-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 10px;
  margin: 16px 0 0;
}
.lpx-stat {
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  min-width: 0;
}
.lpx-stat .lpx-stat-v {
  font-size: 1.35rem;
  font-weight: 700;
  line-height: 1.25;
  overflow-wrap: anywhere; /* long string stats must not blow the tile */
  color: var(--ink-strong);
  /* proportional figures on display-size numbers (dataviz: no tabular-nums here) */
}
.lpx-stat .lpx-stat-k { font-size: 0.78rem; color: var(--ink-soft); margin-top: 2px; }

.lpx-boundary {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  margin: 16px 0 0;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--ink-soft);
  font-size: 0.83rem;
}
.lpx-boundary .lpx-boundary-ico { flex: none; font-style: normal; }
.lpx-boundary b { color: var(--ink); }

/* ---------- cases grid ---------- */
.lpx-cases {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(300px, 100%), 1fr));
  gap: 14px;
  margin: 18px 0 0;
}
.lpx-cases-title {
  margin: 20px 0 0;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-faint);
}

/* ---------- case card ---------- */
.lpx-case {
  display: flex;
  flex-direction: column;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.lpx-case:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: var(--accent);
}

.lpx-case-img {
  position: relative;
  margin: 0;
  background: var(--surface-2);
  border-bottom: 1px solid var(--line);
}
.lpx-case-img img {
  display: block;
  width: 100%;
  max-height: 240px;
  object-fit: contain;
  cursor: zoom-in;
}
.lpx-case-img .lpx-img-hint {
  position: absolute;
  right: 8px; bottom: 8px;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55); /* scrim over a photo: theme-invariant (cf. style.css .lp-lightbox) */
  color: #fff;
  opacity: 0;
  transition: opacity 0.2s;
  pointer-events: none;
}
.lpx-case-img:hover .lpx-img-hint, .lpx-case-img:focus-within .lpx-img-hint { opacity: 1; }

.lpx-case-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  padding: 14px 16px 16px;
}
.lpx-case-title-row { display: flex; align-items: flex-start; gap: 8px; }
.lpx-case-title-row h4 { margin: 0; font-size: 0.98rem; line-height: 1.4; flex: 1; color: var(--ink-strong); }

.lpx-scenario {
  margin: 0;
  font-size: 0.82rem;
  color: var(--ink-faint);
}
.lpx-question {
  margin: 0;
  font-size: 0.86rem;
  color: var(--ink-soft);
  white-space: pre-line;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.lpx-gold {
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--v-correct-ink);
  background: var(--v-correct-bg);
  color: var(--v-correct-ink);
  font-size: 0.83rem;
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.lpx-gold .lpx-gold-k {
  display: block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  opacity: 0.85;
  margin-bottom: 2px;
}

.lpx-compare { display: flex; flex-direction: column; gap: 6px; margin: 0; }
.lpx-compare-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  gap: 8px;
  align-items: center;
  padding: 8px 10px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.lpx-compare-left { min-width: 0; }
.lpx-compare-label {
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  margin-bottom: 2px;
}
.lpx-compare-value {
  font-size: 0.84rem;
  color: var(--ink);
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.lpx-compare-mid {
  color: var(--ink-faint);
  font-size: 0.9rem;
  text-align: center;
}
.lpx-compare-gold {
  font-size: 0.84rem;
  color: var(--v-correct-ink);
  white-space: pre-line;
  overflow-wrap: anywhere;
}
.lpx-compare-gold .lpx-compare-label { color: var(--v-correct-ink); opacity: 0.75; }

/* stacked layout for narrow cards */
@media (max-width: 640px) {
  .lpx-compare-row { grid-template-columns: 1fr; }
  .lpx-compare-mid { transform: rotate(90deg); }
}

.lpx-case-foot {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 4px;
}
.lpx-case-more {
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--accent);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.lpx-case-more:hover { border-color: var(--accent); background: var(--surface-2); }

/* ---------- difficulty meter (R4/R5) ---------- */
.lpx-diff {
  padding: 10px 12px;
  background: var(--surface-2);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
}
.lpx-diff-head {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--ink-faint);
  margin-bottom: 8px;
}
.lpx-diff-delta {
  margin-left: auto;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 1px 8px;
  border-radius: 999px;
  background: var(--placeholder-bg);
  color: var(--ink-soft);
}
.lpx-diff-delta.lpx-delta-big { background: var(--chip-running-bg); color: var(--chip-running-ink); }

.lpx-meter { display: grid; grid-template-columns: 2.4em 1fr auto; gap: 4px 8px; align-items: center; }
.lpx-meter + .lpx-meter { margin-top: 6px; }
.lpx-meter-key { font-size: 0.74rem; color: var(--ink-soft); }
.lpx-meter-track {
  position: relative;
  height: 12px;               /* thin mark: <=24px per dataviz */
  border-radius: 0 4px 4px 0; /* square at baseline, 4px rounded data-end */
  background: var(--surface-2);
  overflow: hidden;
}
.lpx-meter-new .lpx-meter-track {
  /* unfilled track = same-ramp light step of the new-bar hue */
  background: var(--surface-2);
  background: color-mix(in srgb, var(--series-1) 16%, transparent);
}
.lpx-meter-fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--lp-w, 0%);
  border-radius: 0 4px 4px 0;
  background: var(--ink-faint);   /* "before" bar: recessive neutral */
}
.lpx-meter-new .lpx-meter-fill { background: var(--series-1); }
.lpx-meter-val { font-size: 0.74rem; font-weight: 600; color: var(--ink); justify-self: end; }
.lpx-meter-val .lpx-star { color: var(--accent); font-style: normal; }
.lpx-meter-val .lpx-star-off { color: var(--line-strong); font-style: normal; }

/* ---------- tag chips (old -> new) ---------- */
.lpx-tags { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.lpx-tags-k {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--ink-faint);
  letter-spacing: 0.05em;
}
.lpx-tag {
  font-size: 0.75rem;
  padding: 2px 9px;
  border-radius: 999px;
  border: 1px dashed var(--line-strong);
  color: var(--ink-faint);
  background: transparent;
}
.lpx-tag-new {
  border: 1px solid var(--accent);
  background: var(--surface-2);
  color: var(--accent);
  font-weight: 600;
}
.lpx-tags-arrow { color: var(--ink-faint); font-size: 0.78rem; }

/* ---------- case detail (overlay content) ---------- */
.lpx-detail { background: var(--surface); color: var(--ink); }
.lpx-detail-head { padding: 22px 24px 14px; border-bottom: 1px solid var(--line); }
.lpx-detail-head h3 { margin: 6px 0 0; font-size: 1.18rem; line-height: 1.35; color: var(--ink-strong); }
.lpx-detail-badges { display: flex; flex-wrap: wrap; gap: 8px; }

.lpx-detail-body { padding: 18px 24px 24px; display: flex; flex-direction: column; gap: 14px; }
.lpx-detail-body img.lpx-detail-img {
  display: block;
  max-width: 100%;
  max-height: 420px;
  margin: 0 auto;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--surface-2);
}
.lpx-detail-block h4 {
  margin: 0 0 6px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-faint);
}
.lpx-detail-note {
  padding: 10px 14px;
  border-left: 3px solid var(--chip-running-ink);
  background: var(--surface-2);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.85rem;
  color: var(--ink-soft);
}
.lpx-detail .lpx-compare-row { background: var(--surface); }

/* ---------- lightbox ---------- */
.lpx-lightbox {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: #000c; /* scrim: theme-invariant (cf. style.css .lp-lightbox) */
  backdrop-filter: blur(3px);
}
.lpx-lightbox[hidden] { display: none; }
.lpx-lightbox-panel {
  position: relative;
  width: min(880px, 100%);
  max-height: min(88vh, 100%);
  overflow: auto;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--bg-raise);
  box-shadow: var(--shadow);
  animation: lpx-pop 0.22s ease;
}
.lpx-lightbox-panel img { max-width: 100%; height: auto; } /* bare-image open */
.lpx-lightbox-close {
  position: sticky;
  top: 10px;
  margin-left: auto;
  margin-right: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px; height: 32px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 15px;
  line-height: 1;
  cursor: pointer;
  box-shadow: var(--shadow);
  transition: color 0.2s, border-color 0.2s;
}
.lpx-lightbox-close:hover { color: var(--ink); border-color: var(--accent); }
body.lpx-lightbox-open { overflow: hidden; }

@keyframes lpx-pop {
  from { transform: scale(0.96) translateY(8px); opacity: 0; }
  to   { transform: none; opacity: 1; }
}

/* ---------- scroll-reveal & flip (armed only by LP.initAnimations) ---------- */
.lpx-anim [data-lp-reveal] {
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.55s ease, transform 0.55s cubic-bezier(0.2, 0.7, 0.3, 1);
  transition-delay: var(--lp-delay, 0s);
}
.lpx-anim [data-lp-reveal].lpx-in { opacity: 1; transform: none; }

.lpx-anim .lpx-meter-fill { width: 0; transition: width 0.8s cubic-bezier(0.2, 0.7, 0.3, 1) 0.2s; }
.lpx-anim [data-lp-reveal].lpx-in .lpx-meter-fill { width: var(--lp-w, 0%); }

/* verdict chip flip-in for 改判/纠偏 rows */
.lpx-flip { perspective: 420px; }
.lpx-flip .lpx-chip-flip {
  display: inline-flex;
  transform: rotateX(-92deg);
  transform-origin: 50% 100%;
  transition: transform 0.6s cubic-bezier(0.3, 0.9, 0.4, 1.1) 0.25s;
}
.lpx-flip.lpx-in .lpx-chip-flip { transform: none; }

/* ---------- reduced motion: kill transitions/animations, keep final states ---------- */
@media (prefers-reduced-motion: reduce) {
  .lpx-scope *, .lpx-lightbox * {
    transition: none !important;
    animation: none !important;
  }
  .lpx-anim [data-lp-reveal] { opacity: 1; transform: none; }
  .lpx-anim .lpx-meter-fill { width: var(--lp-w, 0%); }
  .lpx-flip .lpx-chip-flip { transform: none; }
  .lpx-case:hover { transform: none; }
}