/* Hall — landing page (step 7).
 *
 * Design rules carried over from ARCH-BOOK:
 *   - 17px body floor / readable type
 *   - visual-first; status-colour only (no decorative tints)
 *   - responsive grid: 4 → 2 → 1 columns
 *   - approved buttons only: arch-cta · arch-btn-red ·
 *     arch-btn-ghost · arch-btn-ok (assumed defined site-wide;
 *     the .arch-btn-ghost block below is a defensive fallback).
 *
 * BEM-ish naming with the .hall- prefix to avoid collisions with
 * the existing site CSS.
 */

/* ── Hero ───────────────────────────────────────────────────────── */
.hall-hero {
  background: linear-gradient(135deg, #1f2433 0%, #171b27 100%);
  border-bottom: 1px solid #262b3c;
  padding: 48px 0 36px;
}
.hall-hero__inner {
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
}
.hall-hero__eyebrow {
  display: block;
  font-size: 0.75rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #cda12c;
  font-weight: 800;
  margin-bottom: 6px;
}
.hall-hero__title h1 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 900;
  letter-spacing: -0.8px;
  line-height: 1.1;
  background: linear-gradient(120deg, #cda12c 0%, #ffd35e 50%, #818cf8 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 8px;
}
.hall-hero__tag {
  color: #8a93a6;
  font-size: 1.05rem;
  max-width: 60ch;
  line-height: 1.6;
}
.hall-hero__featured {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 14px 20px;
  background: rgba(205, 161, 44, 0.08);
  border: 1px solid rgba(205, 161, 44, 0.36);
  border-radius: 14px;
  text-decoration: none;
  color: #e8eaf0;
  min-width: 220px;
  transition: background .15s, border-color .15s, transform .15s;
}
.hall-hero__featured:hover {
  background: rgba(205, 161, 44, 0.14);
  border-color: rgba(205, 161, 44, 0.6);
  transform: translateY(-1px);
}
.hall-hero__featured-eyebrow {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #ffd35e;
  font-weight: 800;
}
.hall-hero__featured-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: #ffd35e;
}
.hall-hero__featured-meta {
  font-size: 0.85rem;
  color: #8a93a6;
}

/* ── Add a topic CTA — collapsed by default ─────────────────────── */
.hall-add {
  border-bottom: 1px solid #262b3c;
  background: #0f1219;
  padding: 16px 0;
}
.hall-add[data-collapsed="true"] .hall-add__body {
  display: none;
}
.hall-add__body {
  margin-top: 14px;
  padding: 14px 18px;
  background: #171b27;
  border: 1px solid #262b3c;
  border-radius: 12px;
  color: #8a93a6;
  font-size: 0.94rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}
/* Pre-promote to compositor layer so the site-wide translateY(-1px) hover
 * doesn't trigger a sub-pixel text re-render on Windows/Chrome */
.hall-add__body .arch-cta {
  -webkit-font-smoothing: antialiased;
  transform: translateZ(0);
}
.hall-add__body .arch-cta:hover {
  transform: translateY(-1px) translateZ(0);
}

/* The site-wide `.container { min-height: calc(100vh - 200px) }` rule
 * (style.css L142) is meant for top-level page wrappers. The expo
 * templates use `.container` purely for Bootstrap's responsive width +
 * horizontal padding inside larger section wrappers, so the inherited
 * min-height blows up small components (filter bar, hero strip, sticky
 * header) to full viewport height. Reset it on the bits where it
 * matters. */
.hall-hero__inner.container,
.hall-add .container,
.hall-filters__form.container,
.hall-toolbar.container,
.hall-detail-header__inner.container,
.hall-add-page__head.container,
.hall-edit-page__head.container,
.hall-add-page__form.container,
.hall-edit-page__form.container,
.hall-add-page__body.container,
.hall-contributors-page.container,
.hall-detail-body.container,
.hall-grid-section .container,
.hall-contribs-strip .container,
.hall-requests-section .container {
  min-height: auto;
}

/* ── Filters bar — sticky on scroll ─────────────────────────────── */
.hall-filters {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(15, 18, 25, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid #262b3c;
  padding: 14px 0;
}
.hall-filters__form {
  display: flex;
  gap: 12px;
  align-items: end;
  flex-wrap: wrap;
  min-height: auto;
}
.hall-filter {
  display: flex;
  flex-direction: column;
  gap: 4px;
  min-width: 140px;
  flex: 1 1 140px;
}
.hall-filter--actions {
  flex-direction: row;
  align-items: center;
  gap: 8px;
  min-width: auto;
  flex: 0 1 auto;
}
.hall-filter__label {
  font-size: 0.7rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #8a93a6;
}
.hall-filter select {
  background: #171b27;
  color: #e8eaf0;
  border: 1px solid #262b3c;
  border-radius: 10px;
  padding: 9px 12px;
  font-family: inherit;
  font-size: 0.9rem;
  min-height: 40px;
}
.hall-filter select:focus {
  outline: none;
  border-color: #cda12c;
  box-shadow: 0 0 0 3px rgba(205, 161, 44, 0.18);
}


/* ── Topic grid: 4 → 2 → 1 columns ──────────────────────────────── */
.hall-grid-section {
  padding: 28px 0 60px;
  background: #0a0d14;
}
.hall-grid {
  display: grid;
  gap: 18px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}
@media (max-width: 1024px) {
  .hall-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 600px) {
  .hall-grid { grid-template-columns: 1fr; }
}

/* ── Topic card ─────────────────────────────────────────────────── *
 * Rule 0 — every topic card renders at exactly the same height,
 * per breakpoint. Fixed `height` (not min-height) at each grid
 * width so two cards with different content can't drift even a
 * single pixel. overflow:hidden enforces the cap. 1:1 cover stays
 * — body absorbs the remainder via flex:1.
 *
 * Per-breakpoint heights track the cover's natural width:
 *   4-col (default ~280px wide)  → cover 280 + body 140 = 420
 *   2-col (≤1024 ~360-480 wide)  → cover ~440 + body 140 = 580
 *   1-col mobile (full width)    → fall back to min-height; the
 *     cover scales freely with the column. */
.hall-card {
  background: #171b27;
  border: 1px solid #262b3c;
  border-radius: 14px;
  overflow: hidden;
  transition: transform .15s, border-color .15s, box-shadow .15s;
  display: flex;
  flex-direction: column;
  height: 420px;
}
@media (max-width: 1024px) and (min-width: 601px) {
  .hall-card { height: 540px; }
}
@media (max-width: 600px) {
  .hall-card { height: auto; min-height: 420px; }
}
.hall-card:hover {
  transform: translateY(-2px);
  border-color: rgba(205, 161, 44, 0.4);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.32);
}
.hall-card__cover {
  display: block;
  position: relative;
  aspect-ratio: 1 / 1;
  background: linear-gradient(135deg, #1f2433, #171b27);
  overflow: hidden;
  text-decoration: none;
  flex-shrink: 0;  /* cover holds its 1:1 shape; body absorbs slack via flex:1 */
}
.hall-card__cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hall-card__cover-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-family: 'Nunito', sans-serif;
  font-size: 4rem;
  font-weight: 900;
  color: rgba(205, 161, 44, 0.32);
  letter-spacing: -2px;
  text-transform: uppercase;
}
.hall-card__badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(205, 161, 44, 0.18);
  color: #ffd35e;
  font-size: 0.65rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 4px 9px;
  border-radius: 99px;
  border: 1px solid rgba(205, 161, 44, 0.4);
  backdrop-filter: blur(4px);
}
.hall-card__body {
  padding: 14px 16px 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  flex: 1;
  min-height: 140px;  /* Rule 0 — body never collapses; stats always have room */
  min-width: 0;
}
.hall-card__name {
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.2px;
  line-height: 1.3;
  margin: 0;
  /* Rule 0 — clamp at 2 lines so two-word vs five-word architect
   * names render at the same vertical bound. min-height reserves the
   * 2-line slot even when the name is one word, so the row below
   * (native + meta) starts at the same Y on every card. */
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 2.6em;
}
.hall-card__name a {
  color: #e8eaf0;
  text-decoration: none;
}
.hall-card__name a:hover {
  color: #ffd35e;
}
.hall-card__native {
  font-size: 0.85rem;
  color: #8a93a6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  /* Slot reserved even when the architect has no native-script name;
   * the empty line keeps the meta row at the same Y on every card. */
  min-height: 1.2em;
}
.hall-card__meta {
  font-size: 0.82rem;
  color: #8a93a6;
  margin: 0 0 10px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 1.2em;
  /* Pushes the stats footer all the way to the body's bottom edge so
   * the stats sit at exactly the same Y across every card regardless
   * of how many of the three lines above actually have content. */
  margin-bottom: auto;
}
.hall-card__stats {
  list-style: none;
  display: flex;
  gap: 14px;
  padding: 0;
  margin: 0;  /* meta's margin-bottom:auto does the pinning now */
  border-top: 1px solid #262b3c;
  padding-top: 10px;
  min-height: 48px;  /* Rule 0 — locked footer band */
}
.hall-card__stats li {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.78rem;
}
.hall-card__stat-num {
  font-weight: 800;
  color: #ffd35e;
  font-size: 0.95rem;
  line-height: 1;
}
.hall-card__stat-lbl {
  color: #8a93a6;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.66rem;
  font-weight: 700;
}

/* ── Empty state ────────────────────────────────────────────────── */
.hall-empty {
  text-align: center;
  padding: 60px 20px;
  color: #8a93a6;
}
.hall-empty h2 {
  font-size: 1.4rem;
  color: #e8eaf0;
  margin-bottom: 10px;
  font-weight: 800;
}
.hall-empty p {
  font-size: 1rem;
  margin-bottom: 18px;
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.55;
}

/* ── Pagination ───────────────────────────────────────────────────
 * Custom .hall-pagination retired — the page now uses the site-wide
 * _pagination.html partial (.pager / .pager-btn) so Expo matches
 * groups/offices/projects/posts pagination. Wrapper kept so we can
 * add a top border + spacing without touching the partial. */
.hall-pagination-wrap {
  margin-top: 36px;
  padding-top: 24px;
  border-top: 1px solid #262b3c;
}

/* ── Mobile breakpoint adjustments ──────────────────────────────── */
@media (max-width: 760px) {
  .hall-hero {
    padding: 32px 0 24px;
  }
  .hall-hero__inner {
    grid-template-columns: 1fr;
  }
  .hall-filter {
    min-width: 100%;
    flex: 1 1 100%;
  }
  .hall-filter--actions {
    flex: 1 1 100%;
    justify-content: flex-start;
  }
}


/* ════════════════════════════════════════════════════════════════════ *
 * Topic detail page (step 8)                                          *
 * ════════════════════════════════════════════════════════════════════ */

/* Hidden-topic banner (staff only) */
.hall-hidden-banner {
  background: rgba(239, 68, 68, 0.12);
  border-bottom: 2px solid #ef4444;
  color: #fecaca;
  padding: 12px 20px;
  font-size: 0.92rem;
  text-align: center;
}
.hall-hidden-banner strong {
  color: #ef4444;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.hall-hidden-banner a {
  color: #ffd35e;
  margin-left: 12px;
  text-decoration: underline;
}

/* Step 60 — stub banner on the topic page */
.hall-stub-banner {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  background: rgba(251, 191, 36, 0.09);
  border-bottom: 2px solid rgba(251, 191, 36, 0.35);
  color: #fef3c7;
  padding: 12px 20px;
  font-size: 0.88rem;
}
.hall-stub-banner__icon {
  font-size: 1.1rem;
  color: #fbbf24;
  flex-shrink: 0;
}
.hall-stub-banner__body {
  flex: 1;
  min-width: 0;
}
.hall-stub-banner__title {
  color: #fbbf24;
  font-weight: 700;
  margin-right: 6px;
}
.hall-stub-banner__text {
  color: #fde68a;
}
.hall-stub-banner__cta {
  flex-shrink: 0;
  font-size: 0.8rem;
  padding: 5px 14px;
}

/* ── Photo swiper (step 13 — full polish) ──────────────────────────────
 * Full-width slides, native scroll-snap for swipe, JS overlay for
 * chevrons / dots / counter / resume pill. Auto-advance + a11y handled
 * in static/javascript/expo/swiper.js. */
.hall-swiper {
  background: #0a0d14;
  border-bottom: 1px solid #262b3c;
  position: relative;
  outline-offset: -3px;
}
.hall-swiper:focus-visible {
  outline: 3px solid rgba(205, 161, 44, 0.7);
}
.hall-swiper__track {
  display: flex;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  /* Hide native scrollbars across browsers — chevrons + dots + swipe
   * cover navigation. */
  scrollbar-width: none;
}
.hall-swiper__track::-webkit-scrollbar { display: none; }

.hall-swiper__slide {
  flex: 0 0 100%;
  width: 100%;
  scroll-snap-align: start;
  margin: 0;
  position: relative;
  background: #171b27;
}
.hall-swiper__slide img {
  width: 100%;
  height: clamp(280px, 60vh, 640px);
  object-fit: cover;
  display: block;
}
.hall-swiper__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(0deg, rgba(10, 13, 20, 0.92), rgba(10, 13, 20, 0.0));
  color: #e8eaf0;
  padding: 22px 22px 14px;
  font-size: 0.92rem;
  pointer-events: none;
}
.hall-swiper__credit {
  color: #8a93a6;
  font-size: 0.8rem;
  margin-left: 6px;
  display: inline;
}
.hall-swiper__credit-link {
  color: #8a93a6;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.hall-swiper__credit-link:hover {
  color: #c4cad8;
}

/* Chevrons */
.hall-swiper__nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 64px;
  background: rgba(10, 13, 20, 0.55);
  color: #ffd35e;
  border: 1px solid rgba(205, 161, 44, 0.32);
  border-radius: 12px;
  font-size: 1.6rem;
  font-weight: 800;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  backdrop-filter: blur(6px);
  transition: background .15s, border-color .15s;
}
.hall-swiper__nav:hover {
  background: rgba(10, 13, 20, 0.78);
  border-color: rgba(205, 161, 44, 0.6);
}
.hall-swiper__nav:focus-visible {
  outline: 2px solid #ffd35e;
  outline-offset: 2px;
}
.hall-swiper__nav--prev { left: 14px; }
.hall-swiper__nav--next { right: 14px; }

/* Dots */
.hall-swiper__dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 2;
  background: rgba(10, 13, 20, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 99px;
  padding: 6px 12px;
  backdrop-filter: blur(6px);
}
.hall-swiper__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.32);
  border: 0;
  cursor: pointer;
  padding: 0;
  transition: background .15s, transform .15s;
}
.hall-swiper__dot:hover {
  background: rgba(255, 255, 255, 0.55);
}
.hall-swiper__dot.is-active {
  background: #ffd35e;
  transform: scale(1.3);
}
.hall-swiper__dot:focus-visible {
  outline: 2px solid #ffd35e;
  outline-offset: 3px;
}

/* Counter */
.hall-swiper__counter {
  position: absolute;
  bottom: 14px;
  right: 16px;
  font-family: 'Cascadia Code', monospace;
  font-size: 0.82rem;
  color: #ffd35e;
  background: rgba(10, 13, 20, 0.6);
  border: 1px solid rgba(205, 161, 44, 0.25);
  padding: 4px 10px;
  border-radius: 99px;
  backdrop-filter: blur(6px);
  z-index: 2;
}
.hall-swiper__counter-sep {
  color: #8a93a6;
  margin: 0 2px;
}

/* Resume pill — appears when paused. */
.hall-swiper__resume {
  position: absolute;
  bottom: 14px;
  left: 16px;
  background: rgba(10, 13, 20, 0.78);
  color: #ffd35e;
  border: 1px solid rgba(205, 161, 44, 0.5);
  font-family: inherit;
  font-size: 0.84rem;
  font-weight: 700;
  padding: 6px 14px 6px 12px;
  border-radius: 99px;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  z-index: 2;
  backdrop-filter: blur(6px);
  transition: background .15s, border-color .15s;
}
.hall-swiper__resume:hover {
  background: rgba(205, 161, 44, 0.16);
  border-color: rgba(205, 161, 44, 0.8);
}
.hall-swiper__resume:focus-visible {
  outline: 2px solid #ffd35e;
  outline-offset: 2px;
}
.hall-swiper__resume[hidden] { display: none; }

/* Single-slide state — hide every navigation control. */
.hall-swiper--single .hall-swiper__nav,
.hall-swiper--single .hall-swiper__dots,
.hall-swiper--single .hall-swiper__counter,
.hall-swiper--single .hall-swiper__resume {
  display: none;
}

/* Accessibility utility (used by the swiper live region). Add only
 * once even if multiple components define it — the CSS cascade
 * deduplicates. */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Reduced-motion: kill smooth-scroll animation on the track so
 * scrollTo({behavior:'smooth'}) becomes instant. */
@media (prefers-reduced-motion: reduce) {
  .hall-swiper__track { scroll-behavior: auto; }
  .hall-swiper__dot { transition: none; }
}

/* Mobile breakpoint — shrink chevrons + tighten dot bar. */
@media (max-width: 600px) {
  .hall-swiper__nav {
    width: 36px;
    height: 56px;
    font-size: 1.4rem;
  }
  .hall-swiper__nav--prev { left: 8px; }
  .hall-swiper__nav--next { right: 8px; }
  .hall-swiper__counter {
    bottom: 10px;
    right: 8px;
    font-size: 0.74rem;
  }
  .hall-swiper__resume {
    bottom: 10px;
    left: 8px;
    font-size: 0.76rem;
    padding: 5px 12px;
  }
}

/* ── Sticky header strip ────────────────────────────────────────────── */
.hall-detail-header__sentinel {
  height: 1px;
  margin: 0;
  padding: 0;
}
.hall-detail-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(15, 18, 25, 0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid #262b3c;
  padding: 16px 0;
  transition: padding .2s ease, box-shadow .2s ease;
}
.hall-detail-header.is-stuck {
  padding: 8px 0;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.32);
}
.hall-detail-header__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 18px;
  align-items: center;
}
.hall-detail-header__back {
  grid-column: 1 / -1;
  font-size: 0.82rem;
  color: #8a93a6;
  text-decoration: none;
  letter-spacing: 0.02em;
  margin-bottom: -6px;
}
.hall-detail-header__back:hover { color: #ffd35e; }
.hall-detail-header.is-stuck .hall-detail-header__back { display: none; }
.hall-detail-header__title h1 {
  font-size: clamp(1.3rem, 2.8vw, 1.85rem);
  font-weight: 900;
  letter-spacing: -0.5px;
  color: #ffd35e;
  margin: 0;
  line-height: 1.15;
}
.hall-detail-header.is-stuck .hall-detail-header__title h1 {
  font-size: 1.15rem;
}
.hall-detail-header__native {
  font-size: 0.9rem;
  color: #8a93a6;
  margin: 2px 0 0;
}
.hall-detail-header.is-stuck .hall-detail-header__native {
  display: none;
}
.hall-detail-header__meta {
  display: flex;
  gap: 6px;
  font-size: 0.86rem;
  color: #8a93a6;
  flex-wrap: wrap;
  align-items: center;
}
.hall-detail-header__meta span:first-child {
  color: #e8eaf0;
  font-weight: 700;
}
.hall-detail-header__count {
  margin-left: 6px;
  font-family: 'Cascadia Code', monospace;
  font-size: 0.74rem;
  color: #8a93a6;
}
.hall-detail-header__created-by a {
  color: var(--accent);
  text-decoration: none;
}
.hall-detail-header__created-by a:hover {
  text-decoration: underline;
}
/* Step 62 — top-contributor badge */
.hall-top-contributor-badge {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 7px;
  border-radius: 99px;
  background: rgba(251, 191, 36, .15);
  color: #fbbf24;
  border: 1px solid rgba(251, 191, 36, .35);
  font-size: .7rem;
  font-weight: 700;
  margin-left: 4px;
  vertical-align: middle;
}

/* ── Body layout ────────────────────────────────────────────────────── */
.hall-detail-body {
  padding: 32px 20px 80px;
}
/* Step 61 — two-column layout: prose + related sidebar */
.hall-detail-layout {
  display: grid;
  grid-template-columns: 1fr 280px;
  gap: 40px;
  align-items: start;
  max-width: 1100px;
  margin: 0 auto;
}
@media (max-width: 900px) {
  .hall-detail-layout {
    grid-template-columns: 1fr;
  }
}
.hall-detail-prose {
  min-width: 0;
}

/* ── Related architects sidebar (step 61) ─────── */
.hall-related-sidebar {
  position: sticky;
  top: 80px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
}
.hall-related-sidebar__head {
  margin-bottom: 12px;
}
.hall-related-sidebar__title {
  font-size: .78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--text-muted);
}
.hall-related-sidebar__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.hall-related-card__link {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: inherit;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background .12s;
}
.hall-related-card__link:hover {
  background: var(--bg-surface);
}
.hall-related-card__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--bg-surface);
}
.hall-related-card__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.hall-related-card__avatar--init {
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: var(--text-muted);
}
.hall-related-card__info {
  display: flex;
  flex-direction: column;
  gap: 1px;
  min-width: 0;
}
.hall-related-card__name {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hall-related-card__meta {
  font-size: .73rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hall-related-sidebar__see-all {
  display: block;
  margin-top: 12px;
  font-size: .78rem;
  color: var(--accent);
  text-decoration: none;
  text-align: right;
  padding: 4px 8px;
}
.hall-related-sidebar__see-all:hover {
  text-decoration: underline;
}

.hall-detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
}
.hall-detail-tags__chip {
  background: rgba(129, 140, 248, 0.14);
  color: #c7cfff;
  border: 1px solid rgba(129, 140, 248, 0.34);
  font-size: 0.74rem;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 99px;
}
.hall-detail-tags__chip--award {
  background: rgba(205, 161, 44, 0.12);
  color: #ffd35e;
  border-color: rgba(205, 161, 44, 0.34);
  font-weight: 700;
}

/* Section */
.hall-section {
  margin: 32px 0;
  scroll-margin-top: 80px;
}
.hall-section__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px dashed #262b3c;
  padding-bottom: 8px;
  margin-bottom: 16px;
}
.hall-section__title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: #ffd35e;
  margin: 0;
}
.hall-section__edit {
  font-size: 0.82rem;
  font-weight: 700;
  color: #818cf8;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 8px;
  transition: background .15s, color .15s;
}
.hall-section__edit:hover {
  background: rgba(129, 140, 248, 0.1);
  color: #c7cfff;
}
.hall-section__body {
  font-size: 1.05rem;
  line-height: 1.72;
  color: #e8eaf0;
}
.hall-section__body p {
  margin: 0 0 14px;
}
.hall-section--empty {
  text-align: center;
  padding: 40px 20px;
  color: #8a93a6;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed #262b3c;
  border-radius: 14px;
}

/* Sources footnote */
.hall-sources {
  margin-top: 48px;
  padding-top: 22px;
  border-top: 1px solid #262b3c;
}
.hall-sources__title {
  font-size: 0.82rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: #8a93a6;
  margin: 0 0 12px;
}
.hall-sources__list {
  font-size: 0.92rem;
  color: #b8bdcc;
  padding-left: 24px;
}
.hall-sources__list li {
  margin-bottom: 6px;
  line-height: 1.5;
}
.hall-sources__list a {
  color: #ffd35e;
  text-decoration: none;
}
.hall-sources__list a:hover {
  text-decoration: underline;
}

/* ── Pending edit cards (placeholder grid; step 10 polishes) ────────── */
.hall-edits {
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid #262b3c;
}
.hall-edits__head h2 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.2px;
  color: #e8eaf0;
  margin: 0 0 18px;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.hall-edits__count {
  font-family: 'Cascadia Code', monospace;
  font-size: 0.78rem;
  color: #ffd35e;
  background: rgba(205, 161, 44, 0.12);
  border: 1px solid rgba(205, 161, 44, 0.32);
  padding: 2px 9px;
  border-radius: 99px;
}
.hall-edits__grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
@media (max-width: 760px) {
  .hall-edits__grid { grid-template-columns: 1fr; }
}
.hall-edit-card {
  background: #171b27;
  border: 1px solid #262b3c;
  border-radius: 12px;
  padding: 14px 16px;
}
.hall-edit-card__head h3 {
  font-size: 0.92rem;
  font-weight: 800;
  color: #ffd35e;
  margin: 0;
}
.hall-edit-card__meta {
  font-size: 0.78rem;
  color: #8a93a6;
  margin: 4px 0 8px;
}
.hall-edit-card__rationale {
  font-size: 0.9rem;
  color: #e8eaf0;
  margin: 0 0 10px;
  line-height: 1.55;
}
.hall-edit-card__foot {
  border-top: 1px solid #262b3c;
  padding-top: 8px;
  font-size: 0.78rem;
  color: #8a93a6;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 6px;
}
.hall-edit-card__counts strong { color: #e8eaf0; }
.hall-edit-card__placeholder {
  color: #6b7388;
  font-style: italic;
  font-size: 0.74rem;
}
.hall-edits__empty {
  text-align: center;
  color: #8a93a6;
  padding: 24px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed #262b3c;
  border-radius: 12px;
}

/* ── Comments (read-only placeholder; step 12 wires AJAX form) ──────── */
.hall-comments {
  margin-top: 60px;
  padding-top: 32px;
  border-top: 1px solid #262b3c;
}
.hall-comments__head {
  margin-bottom: 18px;
}
.hall-comments__head h2 {
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: -0.2px;
  color: #e8eaf0;
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 10px;
}
.hall-comments__count {
  font-family: 'Cascadia Code', monospace;
  font-size: 0.78rem;
  color: #2dd4bf;
  background: rgba(45, 212, 191, 0.12);
  border: 1px solid rgba(45, 212, 191, 0.32);
  padding: 2px 9px;
  border-radius: 99px;
}
.hall-comments__hint {
  font-size: 0.78rem;
  color: #6b7388;
  font-style: italic;
  margin: 4px 0 0;
}
.hall-comments__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.hall-comments__list--replies {
  margin-top: 10px;
  padding-left: 24px;
  border-left: 2px solid #262b3c;
  gap: 8px;
}
.hall-comment {
  background: #171b27;
  border: 1px solid #262b3c;
  border-radius: 12px;
  padding: 12px 14px;
}
.hall-comment--reply {
  background: #1d2231;
}
.hall-comment__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}
.hall-comment__head strong {
  color: #ffd35e;
  font-size: 0.92rem;
  font-weight: 800;
}
.hall-comment__date {
  font-size: 0.74rem;
  color: #8a93a6;
}
.hall-comment__body {
  font-size: 0.92rem;
  color: #e8eaf0;
  line-height: 1.55;
}
.hall-comment__body p { margin: 0 0 8px; }
.hall-comments__empty {
  text-align: center;
  color: #8a93a6;
  padding: 24px;
}

/* Detail-page mobile breakpoint adjustments */
@media (max-width: 760px) {
  .hall-detail-header__inner {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .hall-detail-header__actions {
    justify-self: stretch;
  }
  .hall-section__head {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .hall-section__body {
    font-size: 1rem;
  }
}


/* ════════════════════════════════════════════════════════════════════ *
 * Add-topic form (step 9) — /expo/add/                                *
 * ════════════════════════════════════════════════════════════════════ */
.hall-add-page {
  background: #0a0d14;
  padding: 0 0 80px;
}
.hall-add-page__head {
  padding: 48px 20px 28px;
  border-bottom: 1px solid #262b3c;
  margin-bottom: 28px;
}
.hall-add-page__eyebrow {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #cda12c;
  font-weight: 800;
  margin-bottom: 6px;
}
.hall-add-page__head h1 {
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.6px;
  color: #ffd35e;
  margin: 0 0 8px;
}
.hall-add-page__tag {
  color: #8a93a6;
  font-size: 1.02rem;
  max-width: 70ch;
  line-height: 1.6;
  margin: 0;
}

.hall-add-page__form {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 0 20px;
  max-width: 1100px;
}

/* Fieldsets */
.hall-form-section {
  background: #171b27;
  border: 1px solid #262b3c;
  border-radius: 16px;
  padding: 22px 24px 24px;
  margin: 0;
}
.hall-form-section legend {
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: -0.2px;
  color: #ffd35e;
  padding: 4px 14px;
  background: #1d2231;
  border: 1px solid #262b3c;
  border-radius: 99px;
  margin-bottom: 6px;
}
.hall-form-required {
  display: inline-block;
  margin-left: 8px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  background: rgba(239, 68, 68, 0.16);
  color: #fecaca;
  padding: 2px 8px;
  border-radius: 99px;
  border: 1px solid rgba(239, 68, 68, 0.32);
}

/* Rows + fields */
.hall-form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-bottom: 14px;
}
.hall-form-row:last-child { margin-bottom: 0; }
.hall-form-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.hall-form-field--narrow { max-width: 180px; }
.hall-form-field--body { margin-bottom: 18px; }
.hall-form-field label {
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #8a93a6;
}
.hall-form-help {
  font-size: 0.82rem;
  color: #8a93a6;
  margin: 4px 0 12px;
  line-height: 1.5;
}
.hall-form-field small {
  font-size: 0.78rem;
  color: #8a93a6;
}

/* Inputs */
.hall-form-field input[type="text"],
.hall-form-field input[type="number"],
.hall-form-field input[type="url"],
.hall-form-field input[type="email"],
.hall-form-field select,
.hall-form-field textarea {
  background: #0a0d14;
  color: #e8eaf0;
  border: 1px solid #262b3c;
  border-radius: 10px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 0.92rem;
  width: 100%;
  min-height: 40px;
}
.hall-form-field select[multiple] {
  min-height: 200px;
  padding: 6px;
}
.hall-form-field input:focus,
.hall-form-field select:focus,
.hall-form-field textarea:focus {
  outline: none;
  border-color: #cda12c;
  box-shadow: 0 0 0 3px rgba(205, 161, 44, 0.18);
}
.hall-form-field input[type="file"] {
  padding: 8px;
  font-size: 0.86rem;
}

/* Field-level error list */
.hall-form-field .errorlist,
.hall-form-errors .errorlist,
.hall-form-errors ul {
  list-style: none;
  padding: 0;
  margin: 4px 0 0;
  color: #fecaca;
  font-size: 0.82rem;
}
.hall-form-errors {
  background: rgba(239, 68, 68, 0.08);
  border-left: 4px solid #ef4444;
  border-radius: 0 12px 12px 0;
  padding: 12px 18px;
  color: #fecaca;
  font-size: 0.92rem;
}

/* Formset rows */
.hall-formset {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.hall-formset__row {
  background: #0a0d14;
  border: 1px solid #262b3c;
  border-radius: 12px;
  padding: 14px 16px;
}

/* Submit row */
.hall-add-page__actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  align-items: center;
  margin-top: 8px;
  flex-wrap: wrap;
}


/* "NEW" badge on the topic-grid card (step 9) */
.hall-card__badge--new {
  background: rgba(52, 211, 153, 0.18);
  color: #34d399;
  border-color: rgba(52, 211, 153, 0.4);
  top: 10px;
  left: auto;
  right: 10px;
}
/* Step 64 — quality grade badge (bottom-left of cover) */
.hall-card__grade {
  position: absolute;
  bottom: 10px;
  left: 10px;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 2px 6px;
  border-radius: 5px;
  border: 1px solid transparent;
  line-height: 1.2;
  letter-spacing: 0.04em;
}
.hall-card__grade--a {
  background: rgba(52, 211, 153, 0.18);
  color: #34d399;
  border-color: rgba(52, 211, 153, 0.4);
}
.hall-card__grade--b {
  background: rgba(163, 230, 53, 0.16);
  color: #a3e635;
  border-color: rgba(163, 230, 53, 0.35);
}
.hall-card__grade--c {
  background: rgba(251, 191, 36, 0.15);
  color: #fbbf24;
  border-color: rgba(251, 191, 36, 0.35);
}
.hall-card__grade--d {
  background: rgba(251, 146, 60, 0.15);
  color: #fb923c;
  border-color: rgba(251, 146, 60, 0.35);
}
.hall-card__grade--f {
  background: rgba(239, 68, 68, 0.14);
  color: #f87171;
  border-color: rgba(239, 68, 68, 0.32);
}

/* Step 60 — stub badge on the card */
.hall-card__badge--stub {
  background: rgba(251, 191, 36, 0.14);
  color: #fbbf24;
  border-color: rgba(251, 191, 36, 0.35);
  top: auto;
  left: auto;
  right: 10px;
  bottom: 10px;
}
.hall-card__badge--new + .hall-card__badge,
.hall-card__badge:has(+ .hall-card__badge--new) {
  /* When both Featured and NEW badges exist, keep them stacked. */
  /* (Featured stays top-left; NEW stays top-right — no rule needed
   * beyond the existing absolute positioning above.) */
}

/* Mobile breakpoint */
@media (max-width: 760px) {
  .hall-form-row {
    grid-template-columns: 1fr;
  }
  .hall-form-field--narrow {
    max-width: 100%;
  }
  .hall-add-page__actions {
    justify-content: stretch;
  }
  .hall-add-page__actions .arch-cta,
  .hall-add-page__actions .arch-btn-ghost {
    flex: 1;
    justify-content: center;
  }
}


/* ════════════════════════════════════════════════════════════════════ *
 * Edit suggestion (step 10): /expo/<slug>/edit/<anchor>/              *
 * + diff renderer + folded card on the topic detail page              *
 * ════════════════════════════════════════════════════════════════════ */

/* ── Edit page ──────────────────────────────────────────────────────── */
.hall-edit-page {
  background: #0a0d14;
  padding: 0 0 80px;
}
.hall-edit-page__head {
  padding: 32px 20px 28px;
  border-bottom: 1px solid #262b3c;
  margin-bottom: 28px;
}
.hall-edit-page__back {
  display: inline-block;
  font-size: 0.86rem;
  color: #818cf8;
  text-decoration: none;
  margin-bottom: 12px;
}
.hall-edit-page__back:hover { color: #c7cfff; }
.hall-edit-page__eyebrow {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: #cda12c;
  font-weight: 800;
  margin-bottom: 6px;
}
.hall-edit-page__head h1 {
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.6px;
  color: #ffd35e;
  margin: 0 0 8px;
}
.hall-edit-page__tag {
  color: #8a93a6;
  font-size: 1.02rem;
  max-width: 70ch;
  line-height: 1.6;
  margin: 0;
}
.hall-edit-page__form {
  display: flex;
  flex-direction: column;
  gap: 22px;
  padding: 0 20px;
  max-width: 1100px;
}
.hall-edit-page__actions {
  display: flex;
  gap: 12px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

/* ── Folded edit-card on topic detail ───────────────────────────────── */
.hall-edit-card {
  background: #171b27;
  border: 1px solid #262b3c;
  border-radius: 12px;
  overflow: hidden;
  list-style: none;
}
/* Reset the default <details>/<summary> arrow — we want our own chevron. */
.hall-edit-card::-webkit-details-marker,
.hall-edit-card > summary::-webkit-details-marker { display: none; }
.hall-edit-card > summary { list-style: none; }

.hall-edit-card__summary {
  padding: 14px 16px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px;
  align-items: start;
  cursor: pointer;
  transition: background .15s;
}
.hall-edit-card__summary:hover {
  background: rgba(255, 255, 255, 0.02);
}
.hall-edit-card[open] > .hall-edit-card__summary {
  border-bottom: 1px solid #262b3c;
  background: rgba(205, 161, 44, 0.04);
}
.hall-edit-card[open] > .hall-edit-card__summary::after {
  content: "▴";
  position: absolute;
  right: 16px;
  top: 14px;
  color: #8a93a6;
}
.hall-edit-card__summary {
  position: relative;
}
.hall-edit-card:not([open]) > .hall-edit-card__summary::after {
  content: "▾";
  position: absolute;
  right: 16px;
  top: 14px;
  color: #8a93a6;
}

.hall-edit-card__summary-main {
  min-width: 0;
  padding-right: 24px; /* room for the chevron pseudo-element */
}
.hall-edit-card__title {
  font-size: 0.95rem;
  font-weight: 800;
  color: #ffd35e;
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 8px;
}
.hall-edit-card__title-tag {
  font-size: 0.66rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #818cf8;
  background: rgba(129, 140, 248, 0.14);
  padding: 2px 7px;
  border-radius: 99px;
}
.hall-edit-card__meta {
  font-size: 0.78rem;
  color: #8a93a6;
  margin: 4px 0 8px;
}
.hall-edit-card__rationale-short {
  font-size: 0.9rem;
  color: #e8eaf0;
  line-height: 1.5;
  margin: 0;
}
.hall-edit-card__summary-stats {
  text-align: right;
  display: flex;
  flex-direction: column;
  gap: 4px;
  align-items: flex-end;
  white-space: nowrap;
  padding-right: 18px;
}
.hall-edit-card__effective {
  font-family: 'Cascadia Code', monospace;
  font-size: 0.86rem;
  color: #e8eaf0;
}
.hall-edit-card__effective strong {
  color: #34d399;
  font-size: 1.1rem;
  font-weight: 800;
}
.hall-edit-card__effective small {
  color: #8a93a6;
  margin-left: 2px;
}
.hall-edit-card__remaining {
  font-size: 0.74rem;
  color: #fb923c;
}
.hall-edit-card__threshold-met {
  font-size: 0.74rem;
  font-weight: 800;
  color: #34d399;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hall-edit-card__body {
  padding: 14px 16px 18px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.hall-edit-card__row h4 {
  font-size: 0.74rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #8a93a6;
  margin: 0 0 8px;
}
.hall-edit-card__rationale-full {
  font-size: 0.92rem;
  color: #e8eaf0;
  line-height: 1.6;
  margin: 0;
}
.hall-edit-card__sources {
  font-size: 0.86rem;
  color: #b8bdcc;
  padding-left: 22px;
  margin: 0;
}
.hall-edit-card__sources li { margin-bottom: 4px; line-height: 1.5; }
.hall-edit-card__sources a { color: #ffd35e; text-decoration: none; }
.hall-edit-card__sources a:hover { text-decoration: underline; }

.hall-edit-card__formula {
  font-family: 'Cascadia Code', monospace;
  font-size: 0.78rem;
  color: #8a93a6;
  background: #0a0d14;
  border: 1px solid #262b3c;
  border-radius: 8px;
  padding: 8px 12px;
  margin: 0;
}

.hall-edit-card__actions {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
  padding-top: 4px;
  border-top: 1px dashed #262b3c;
  padding-top: 12px;
}
.hall-edit-card__flag {
  margin-left: auto;
  font-size: 0.78rem;
}

/* ── Diff renderer ──────────────────────────────────────────────────── */
.hall-diff {
  background: #0a0d14;
  border: 1px solid #262b3c;
  border-radius: 8px;
  padding: 12px 14px;
  font-size: 0.92rem;
  line-height: 1.7;
  color: #e8eaf0;
  white-space: pre-wrap;
  word-wrap: break-word;
  max-height: 50vh;
  overflow-y: auto;
}
.diff-ins,
.diff-del {
  padding: 1px 4px;
  border-radius: 4px;
  text-decoration: none;
}
/* Red/green AND +/- markers — never rely on colour alone (a11y). */
.diff-ins {
  background: rgba(52, 211, 153, 0.16);
  color: #6ee7b7;
  border: 1px solid rgba(52, 211, 153, 0.3);
}
.diff-ins::before {
  content: "+";
  font-weight: 800;
  margin-right: 2px;
  color: #34d399;
}
.diff-del {
  background: rgba(239, 68, 68, 0.16);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
  text-decoration: line-through;
  text-decoration-color: rgba(239, 68, 68, 0.6);
}
.diff-del::before {
  content: "−";
  font-weight: 800;
  margin-right: 2px;
  color: #ef4444;
  text-decoration: none;
  display: inline-block;
}
.diff-noop {
  font-style: italic;
  color: #8a93a6;
}

/* ── Compact sizing for voting buttons inside the edit card ─────────── */
.hall-edit-card__actions .arch-btn-ok,
.hall-edit-card__actions .arch-btn-red {
  padding: 8px 14px;
  height: auto;
  font-size: 0.86rem;
  gap: 4px;
}

/* ── Edit-card mobile breakpoint ────────────────────────────────────── */
@media (max-width: 760px) {
  .hall-edit-card__summary {
    grid-template-columns: 1fr;
  }
  .hall-edit-card__summary-stats {
    text-align: left;
    align-items: flex-start;
    padding-right: 0;
  }
  .hall-edit-page__actions {
    justify-content: stretch;
  }
  .hall-edit-page__actions .arch-cta,
  .hall-edit-page__actions .arch-btn-ghost {
    flex: 1;
    justify-content: center;
  }
}


/* ════════════════════════════════════════════════════════════════════ *
 * AJAX voting (step 11) — active state, count pills, toast, applied   *
 * card animation                                                       *
 * ════════════════════════════════════════════════════════════════════ */

/* Inline count pill on each vote button */
.hall-edit-card__btn-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 20px;
  padding: 0 6px;
  border-radius: 99px;
  margin-left: 4px;
  background: rgba(255, 255, 255, 0.06);
  font-family: 'Cascadia Code', monospace;
  font-size: 0.74rem;
  font-weight: 700;
}

/* Active vote — emerald outline on Agree, rust on Disagree */
.arch-btn-ok.is-active {
  background: rgba(52, 211, 153, 0.28);
  border-color: #34d399;
  box-shadow: 0 0 0 2px rgba(52, 211, 153, 0.32);
}
.arch-btn-red.is-active {
  background: rgba(239, 68, 68, 0.28);
  border-color: #ef4444;
  box-shadow: 0 0 0 2px rgba(239, 68, 68, 0.32);
}

/* Disabled state — visible focus for tooltip discovery */
[data-vote]:disabled,
[data-vote][aria-disabled="true"] {
  cursor: not-allowed;
  opacity: 0.5;
}
[data-vote]:disabled:focus-visible,
[data-vote][aria-disabled="true"]:focus-visible {
  outline: 2px solid #818cf8;
  outline-offset: 2px;
}

/* Reaching threshold — card celebration before removal */
.hall-edit-card.is-applied {
  border-color: rgba(52, 211, 153, 0.6);
  background: rgba(52, 211, 153, 0.08);
  box-shadow: 0 0 0 2px rgba(52, 211, 153, 0.18);
}
.hall-edit-card.is-applied .hall-edit-card__title {
  color: #34d399;
}

/* Live "remaining" stamp toggles to emerald when threshold met */
.hall-edit-card__remaining.is-met {
  color: #34d399;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* Flag modal — reason + note form inside the shared #hallFlagModal.
   The .form-select / .form-control fields inherit the site's dark + RTL
   theme from style.css; only the layout chrome lives here. */
.arch-modal-target {
  margin: 2px 0 0;
  font-size: 13px;
  font-style: italic;
  color: var(--text-muted, #8b949e);
  text-align: center;
}
.hall-flag-field { margin-block-start: 14px; text-align: start; }
.hall-flag-label {
  display: block;
  margin-block-end: 6px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-primary, #e6edf3);
}
.hall-flag-optional { font-weight: 400; color: var(--text-muted, #8b949e); }
.hall-flag-form .arch-modal-actions { margin-block-start: 20px; }
.hall-detail-header__flag.is-flagged,
.hall-edit-card__flag.is-flagged { opacity: 0.6; cursor: default; }

/* Toast — fixed-position slide-up notice for vote/comment feedback */
.hall-toast {
  position: fixed;
  bottom: 28px;
  inset-inline-end: 28px;
  transform: translateY(14px) scale(0.97);

  display: flex;
  align-items: center;
  gap: 10px;

  background: rgba(18, 24, 38, 0.75);
  backdrop-filter: blur(16px) saturate(1.5);
  -webkit-backdrop-filter: blur(16px) saturate(1.5);
  border: 1px solid rgba(255, 255, 255, 0.10);
  border-radius: 14px;
  padding: 12px 18px;
  font-size: 13.5px;
  font-weight: 500;
  color: #e8ecf3;
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.36),
    0 1px 0 rgba(255, 255, 255, 0.07) inset;

  opacity: 0;
  transition: opacity .26s ease, transform .26s ease;
  z-index: 9999;
  pointer-events: none;
  max-width: min(380px, calc(100vw - 56px));
}
.hall-toast.is-visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}
/* Glowing accent dot — colour matches the toast tone */
.hall-toast::before {
  content: '';
  flex-shrink: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #7aa2ff;
  box-shadow: 0 0 6px rgba(122, 162, 255, 0.70);
}
.hall-toast--success {
  border-color: rgba(52, 211, 153, 0.22);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(52, 211, 153, 0.12) inset,
    0 1px 0 rgba(255, 255, 255, 0.07) inset;
}
.hall-toast--success::before { background: #34d399; box-shadow: 0 0 6px rgba(52, 211, 153, 0.70); }
.hall-toast--error {
  border-color: rgba(239, 111, 108, 0.22);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(239, 111, 108, 0.12) inset,
    0 1px 0 rgba(255, 255, 255, 0.07) inset;
}
.hall-toast--error::before   { background: #ef6f6c; box-shadow: 0 0 6px rgba(239, 111, 108, 0.70); }
.hall-toast--info {
  border-color: rgba(122, 162, 255, 0.22);
  box-shadow:
    0 8px 32px rgba(0, 0, 0, 0.32),
    0 0 0 1px rgba(122, 162, 255, 0.12) inset,
    0 1px 0 rgba(255, 255, 255, 0.07) inset;
}
.hall-toast--info::before    { background: #7aa2ff; box-shadow: 0 0 6px rgba(122, 162, 255, 0.70); }

/* Respect reduced-motion — disable card-removal animation entirely
 * (the script still calls .remove() once the timeout completes so
 * functionality is preserved). */
@media (prefers-reduced-motion: reduce) {
  .hall-toast { transition: none; }
  .hall-edit-card { transition: none !important; }
}


/* ════════════════════════════════════════════════════════════════════ *
 * Comments + follow (step 12)                                         *
 * ════════════════════════════════════════════════════════════════════ */

/* Top-level comment form */
.hall-comment-form {
  background: #171b27;
  border: 1px solid #262b3c;
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.hall-comment-form textarea {
  width: 100%;
  background: #0a0d14;
  color: #e8eaf0;
  border: 1px solid #262b3c;
  border-radius: 8px;
  padding: 10px 12px;
  font-family: inherit;
  font-size: 0.94rem;
  resize: vertical;
  min-height: 70px;
}
.hall-comment-form textarea:focus {
  outline: none;
  border-color: #cda12c;
  box-shadow: 0 0 0 3px rgba(205, 161, 44, 0.18);
}
.hall-comment-form__actions {
  display: flex;
  gap: 8px;
  justify-content: flex-end;
}

/* Inline reply form — slightly recessed inside the parent comment */
.hall-comment-form--reply {
  margin: 10px 0 4px;
  background: #1d2231;
  padding: 10px 12px;
}
.hall-comment-form--reply textarea {
  min-height: 56px;
  font-size: 0.9rem;
}

.hall-comment__actions {
  margin-top: 6px;
}

/* Empty list-item — gets removed on first comment insertion */
.hall-comments__empty {
  list-style: none;
  text-align: center;
  color: #8a93a6;
  padding: 18px 12px;
  background: rgba(255, 255, 255, 0.02);
  border: 1px dashed #262b3c;
  border-radius: 10px;
}

/* Follow button — pressed state */
[data-follow-toggle].is-following {
  background: rgba(52, 211, 153, 0.18);
  border-color: rgba(52, 211, 153, 0.5);
  color: #6ee7b7;
}
[data-follow-toggle].is-following::before {
  content: "✓";
  margin-right: 4px;
  font-weight: 800;
}

/* Anonymous viewer's grey-out follow stamp (not a button) */
.hall-detail-header__follow-anon {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  opacity: 0.5;
  cursor: default;
}


/* ════════════════════════════════════════════════════════════════════ *
 * Light-theme overrides                                               *
 *                                                                     *
 * expo.css was written with hardcoded dark tokens throughout.         *
 * This block remaps every dark-specific surface, text, and border     *
 * to the site's [data-theme="light"] design variables.               *
 * Selector order mirrors the component order above.                   *
 * ════════════════════════════════════════════════════════════════════ */

/* — Hero ————————————————————————————————————————————————————————————— */
[data-theme="light"] .hall-hero {
  background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-base) 100%);
  border-bottom-color: var(--border);
}
[data-theme="light"] .hall-hero__eyebrow { color: var(--accent); }
[data-theme="light"] .hall-hero__title h1 {
  background: linear-gradient(120deg, #92400e 0%, #b45309 48%, #4338ca 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
}
[data-theme="light"] .hall-hero__tag { color: var(--text-muted); }
[data-theme="light"] .hall-hero__featured {
  background: rgba(184, 134, 42, 0.08);
  border-color: rgba(184, 134, 42, 0.28);
  color: var(--text-primary);
}
[data-theme="light"] .hall-hero__featured:hover {
  background: rgba(184, 134, 42, 0.14);
  border-color: rgba(184, 134, 42, 0.50);
}
[data-theme="light"] .hall-hero__featured-eyebrow { color: #92400e; }
[data-theme="light"] .hall-hero__featured-name    { color: var(--accent); }
[data-theme="light"] .hall-hero__featured-meta    { color: var(--text-muted); }

/* — Add CTA bar ———————————————————————————————————————————————————— */
[data-theme="light"] .hall-add {
  background: var(--bg-base);
  border-bottom-color: var(--border);
}
[data-theme="light"] .hall-add__body {
  background: var(--bg-card);
  border-color: var(--border);
  color: var(--text-muted);
}

/* — Sticky filters ————————————————————————————————————————————————— */
[data-theme="light"] .hall-filters {
  background: rgba(245, 246, 248, 0.96);
  border-bottom-color: var(--border);
}
[data-theme="light"] .hall-filter__label { color: var(--text-muted); }
[data-theme="light"] .hall-filter select {
  background: var(--bg-card);
  color: var(--text-primary);
  border-color: var(--border);
}

/* — Grid section ——————————————————————————————————————————————————— */
[data-theme="light"] .hall-grid-section { background: var(--bg-base); }

/* — Topic card ————————————————————————————————————————————————————— */
[data-theme="light"] .hall-card {
  background: var(--bg-card);
  border-color: var(--border);
}
[data-theme="light"] .hall-card__cover {
  background: linear-gradient(135deg, var(--bg-surface), var(--bg-card));
}
[data-theme="light"] .hall-card__badge {
  background: rgba(184, 134, 42, 0.14);
  color: #78350f;
  border-color: rgba(184, 134, 42, 0.36);
}
[data-theme="light"] .hall-card__name a { color: var(--text-primary); }
[data-theme="light"] .hall-card__name a:hover { color: var(--accent); }
[data-theme="light"] .hall-card__native,
[data-theme="light"] .hall-card__meta   { color: var(--text-muted); }
[data-theme="light"] .hall-card__stats  { border-top-color: var(--border); }
[data-theme="light"] .hall-card__stat-num { color: var(--accent); }
[data-theme="light"] .hall-card__stat-lbl { color: var(--text-muted); }

/* Grade badges — use saturated-dark palettes for contrast on white */
[data-theme="light"] .hall-card__badge--new {
  background: rgba(5, 150, 105, 0.12);
  color: #065f46;
  border-color: rgba(5, 150, 105, 0.30);
}
[data-theme="light"] .hall-card__grade--a {
  background: rgba(5, 150, 105, 0.12);
  color: #065f46;
  border-color: rgba(5, 150, 105, 0.30);
}
[data-theme="light"] .hall-card__grade--b {
  background: rgba(77, 124, 15, 0.12);
  color: #3f6212;
  border-color: rgba(77, 124, 15, 0.28);
}
[data-theme="light"] .hall-card__grade--c,
[data-theme="light"] .hall-card__badge--stub {
  background: rgba(217, 119, 6, 0.12);
  color: #92400e;
  border-color: rgba(217, 119, 6, 0.28);
}
[data-theme="light"] .hall-card__grade--d {
  background: rgba(194, 65, 12, 0.10);
  color: #7c2d12;
  border-color: rgba(194, 65, 12, 0.25);
}
[data-theme="light"] .hall-card__grade--f {
  background: rgba(185, 28, 28, 0.10);
  color: #991b1b;
  border-color: rgba(185, 28, 28, 0.25);
}

/* — Empty state + pagination ——————————————————————————————————————— */
[data-theme="light"] .hall-empty        { color: var(--text-muted); }
[data-theme="light"] .hall-empty h3     { color: var(--text-primary); }
[data-theme="light"] .hall-pagination-wrap { border-top-color: var(--border); }

/* — Banners (hidden / stub) ———————————————————————————————————————— */
[data-theme="light"] .hall-hidden-banner {
  background: rgba(220, 38, 38, 0.08);
  border-bottom-color: rgba(220, 38, 38, 0.50);
  color: #991b1b;
}
[data-theme="light"] .hall-hidden-banner strong { color: #dc2626; }
[data-theme="light"] .hall-hidden-banner a      { color: var(--accent); }

[data-theme="light"] .hall-stub-banner {
  background: rgba(217, 119, 6, 0.08);
  border-bottom-color: rgba(217, 119, 6, 0.35);
  color: #78350f;
}
[data-theme="light"] .hall-stub-banner__icon,
[data-theme="light"] .hall-stub-banner__title { color: #92400e; }
[data-theme="light"] .hall-stub-banner__text  { color: #78350f; }

/* — Sticky detail header ————————————————————————————————————————— */
[data-theme="light"] .hall-detail-header {
  background: rgba(245, 246, 248, 0.96);
  border-bottom-color: var(--border);
}
[data-theme="light"] .hall-detail-header.is-stuck {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}
[data-theme="light"] .hall-detail-header__back     { color: var(--text-muted); }
[data-theme="light"] .hall-detail-header__back:hover { color: var(--accent); }
[data-theme="light"] .hall-detail-header__title h1 { color: var(--accent); }
[data-theme="light"] .hall-detail-header__native   { color: var(--text-muted); }
[data-theme="light"] .hall-detail-header__meta     { color: var(--text-muted); }
[data-theme="light"] .hall-detail-header__meta span:first-child { color: var(--text-primary); }
[data-theme="light"] .hall-detail-header__count    { color: var(--text-muted); }

/* Top-contributor badge */
[data-theme="light"] .hall-top-contributor-badge {
  background: rgba(184, 134, 42, 0.12);
  color: #78350f;
  border-color: rgba(184, 134, 42, 0.30);
}

/* — Detail tags/chips ——————————————————————————————————————————————— */
[data-theme="light"] .hall-detail-tags__chip {
  background: rgba(79, 70, 229, 0.08);
  color: #4338ca;
  border-color: rgba(79, 70, 229, 0.22);
}
[data-theme="light"] .hall-detail-tags__chip--award {
  background: rgba(184, 134, 42, 0.12);
  color: #78350f;
  border-color: rgba(184, 134, 42, 0.30);
}

/* — Section body —————————————————————————————————————————————————— */
[data-theme="light"] .hall-section__head  { border-bottom-color: var(--border); }
[data-theme="light"] .hall-section__title { color: var(--accent); }
[data-theme="light"] .hall-section__edit  { color: #4f46e5; }
[data-theme="light"] .hall-section__edit:hover {
  background: rgba(79, 70, 229, 0.08);
  color: #4338ca;
}
[data-theme="light"] .hall-section__body  { color: var(--text-primary); }
[data-theme="light"] .hall-section--empty {
  background: var(--overlay-soft);
  border-color: var(--border);
}

/* — Sources footnote ————————————————————————————————————————————— */
[data-theme="light"] .hall-sources            { border-top-color: var(--border); }
[data-theme="light"] .hall-sources__title     { color: var(--text-muted); }
[data-theme="light"] .hall-sources__list      { color: var(--text-secondary); }
[data-theme="light"] .hall-sources__list a    { color: var(--accent); }

/* — Pending edit cards ——————————————————————————————————————————— */
[data-theme="light"] .hall-edits             { border-top-color: var(--border); }
[data-theme="light"] .hall-edits__head h2    { color: var(--text-primary); }
[data-theme="light"] .hall-edits__count {
  color: #78350f;
  background: rgba(184, 134, 42, 0.12);
  border-color: rgba(184, 134, 42, 0.28);
}
[data-theme="light"] .hall-edit-card {
  background: var(--bg-card);
  border-color: var(--border);
}
[data-theme="light"] .hall-edit-card__summary:hover { background: var(--overlay-soft); }
[data-theme="light"] .hall-edit-card[open] > .hall-edit-card__summary {
  background: rgba(184, 134, 42, 0.04);
  border-bottom-color: var(--border);
}
[data-theme="light"] .hall-edit-card__title          { color: var(--accent); }
[data-theme="light"] .hall-edit-card__meta          { color: var(--text-muted); }
[data-theme="light"] .hall-edit-card__rationale-short,
[data-theme="light"] .hall-edit-card__effective,
[data-theme="light"] .hall-edit-card__rationale-full { color: var(--text-primary); }
[data-theme="light"] .hall-edit-card__sources        { color: var(--text-secondary); }
[data-theme="light"] .hall-edit-card__sources a      { color: var(--accent); }
[data-theme="light"] .hall-edit-card__formula {
  background: var(--bg-base);
  border-color: var(--border);
  color: var(--text-muted);
}
[data-theme="light"] .hall-edit-card__counts strong { color: var(--text-primary); }
[data-theme="light"] .hall-edits__empty {
  background: var(--overlay-soft);
  border-color: var(--border);
}

/* — Diff renderer ———————————————————————————————————————————————— */
[data-theme="light"] .hall-diff {
  background: var(--bg-base);
  border-color: var(--border);
  color: var(--text-primary);
}
[data-theme="light"] .diff-ins {
  background: rgba(5, 150, 105, 0.12);
  color: #065f46;
  border-color: rgba(5, 150, 105, 0.28);
}
[data-theme="light"] .diff-ins::before  { color: #059669; }
[data-theme="light"] .diff-del {
  background: rgba(220, 38, 38, 0.10);
  color: #991b1b;
  border-color: rgba(220, 38, 38, 0.25);
  text-decoration-color: rgba(220, 38, 38, 0.50);
}
[data-theme="light"] .diff-del::before  { color: #dc2626; }
[data-theme="light"] .diff-noop         { color: var(--text-muted); }

/* — Vote button pills ————————————————————————————————————————————— */
[data-theme="light"] .hall-edit-card__btn-count { background: rgba(0, 0, 0, 0.06); }
[data-theme="light"] .arch-btn-ok.is-active {
  background: rgba(5, 150, 105, 0.15);
  border-color: #059669;
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.22);
}
[data-theme="light"] .hall-edit-card.is-applied {
  border-color: rgba(5, 150, 105, 0.45);
  background: rgba(5, 150, 105, 0.06);
  box-shadow: 0 0 0 2px rgba(5, 150, 105, 0.14);
}
[data-theme="light"] .hall-edit-card.is-applied .hall-edit-card__title { color: #059669; }
[data-theme="light"] .hall-edit-card__remaining.is-met                 { color: #059669; }

/* — Toast ————————————————————————————————————————————————————————— */
[data-theme="light"] .hall-toast {
  background: rgba(255, 255, 255, 0.84);
  border-color: rgba(0, 0, 0, 0.10);
  color: var(--text-primary);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.12), 0 1px 0 rgba(255, 255, 255, 0.90) inset;
}
[data-theme="light"] .hall-toast--success {
  border-color: rgba(5, 150, 105, 0.22);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.10), 0 0 0 1px rgba(5, 150, 105, 0.12) inset;
}
[data-theme="light"] .hall-toast--success::before { background: #059669; box-shadow: 0 0 5px rgba(5, 150, 105, 0.50); }
[data-theme="light"] .hall-toast--error {
  border-color: rgba(220, 38, 38, 0.22);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.10), 0 0 0 1px rgba(220, 38, 38, 0.12) inset;
}
[data-theme="light"] .hall-toast--error::before   { background: #dc2626; box-shadow: 0 0 5px rgba(220, 38, 38, 0.50); }
[data-theme="light"] .hall-toast--info {
  border-color: rgba(37, 99, 235, 0.22);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.10), 0 0 0 1px rgba(37, 99, 235, 0.12) inset;
}
[data-theme="light"] .hall-toast--info::before    { background: #2563eb; box-shadow: 0 0 5px rgba(37, 99, 235, 0.50); }

/* — Comments ————————————————————————————————————————————————————— */
[data-theme="light"] .hall-comments           { border-top-color: var(--border); }
[data-theme="light"] .hall-comments__count {
  color: #0e7490;
  background: rgba(6, 182, 212, 0.10);
  border-color: rgba(6, 182, 212, 0.28);
}
[data-theme="light"] .hall-comments__hint     { color: var(--text-muted); }
[data-theme="light"] .hall-comments__list--replies { border-left-color: var(--border); }
[data-theme="light"] .hall-comment {
  background: var(--bg-card);
  border-color: var(--border);
}
[data-theme="light"] .hall-comment--reply     { background: var(--bg-surface); }
[data-theme="light"] .hall-comment__head strong { color: var(--accent); }
[data-theme="light"] .hall-comment__date      { color: var(--text-muted); }
[data-theme="light"] .hall-comment__body      { color: var(--text-primary); }
[data-theme="light"] .hall-comments__empty {
  color: var(--text-muted);
  background: var(--overlay-soft);
  border-color: var(--border);
}

/* — Comment form ————————————————————————————————————————————————— */
[data-theme="light"] .hall-comment-form {
  background: var(--bg-card);
  border-color: var(--border);
}
[data-theme="light"] .hall-comment-form textarea {
  background: var(--bg-base);
  color: var(--text-primary);
  border-color: var(--border);
}
[data-theme="light"] .hall-comment-form--reply { background: var(--bg-surface); }

/* — Add / Edit page shells ——————————————————————————————————————— */
[data-theme="light"] .hall-add-page,
[data-theme="light"] .hall-edit-page           { background: var(--bg-base); }
[data-theme="light"] .hall-add-page__head,
[data-theme="light"] .hall-edit-page__head     { border-bottom-color: var(--border); }
[data-theme="light"] .hall-add-page__tag,
[data-theme="light"] .hall-edit-page__tag      { color: var(--text-muted); }
[data-theme="light"] .hall-add-page__head h1,
[data-theme="light"] .hall-edit-page__head h1  { color: var(--accent); }
[data-theme="light"] .hall-edit-page__back     { color: #4f46e5; }
[data-theme="light"] .hall-edit-page__back:hover { color: #4338ca; }

/* — Form sections (add + edit pages) ————————————————————————————— */
[data-theme="light"] .hall-form-section {
  background: var(--bg-card);
  border-color: var(--border);
}
[data-theme="light"] .hall-form-section legend {
  background: var(--bg-surface);
  border-color: var(--border);
  color: var(--accent);
}
[data-theme="light"] .hall-form-field label,
[data-theme="light"] .hall-form-help,
[data-theme="light"] .hall-form-field small { color: var(--text-muted); }
[data-theme="light"] .hall-form-field input,
[data-theme="light"] .hall-form-field select,
[data-theme="light"] .hall-form-field textarea {
  background: var(--bg-base);
  color: var(--text-primary);
  border-color: var(--border);
}
[data-theme="light"] .hall-formset__row {
  background: var(--bg-base);
  border-color: var(--border);
}

/* — Follow button (detail page) ————————————————————————————————— */
[data-theme="light"] [data-follow-toggle].is-following {
  background: rgba(5, 150, 105, 0.12);
  border-color: rgba(5, 150, 105, 0.40);
  color: #065f46;
}