/* ============================================================
   AI4S-Benchmark · Page-level layouts
   ============================================================ */

/* ================= Account profile ================= */

.profile-layout { display: grid; gap: var(--space-5); padding-block: var(--space-7); max-width: 55rem; margin-inline: auto; }
.profile-panel { padding: var(--space-5); background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); }
.profile-panel h2 { margin: 0 0 var(--space-4); }
#profile-identity { display: flex; flex-wrap: wrap; align-items: center; gap: var(--space-3); }
#profile-identity p { flex-basis: 100%; margin: 0; color: var(--ink-secondary); }
.profile-proposal-list { list-style: none; padding: 0; margin: 0; }
.profile-proposal-list li { display: flex; justify-content: space-between; gap: var(--space-4); padding: var(--space-3) 0; border-top: 1px solid var(--border-faint); }
.profile-proposal-list li span { color: var(--ink-secondary); font-size: var(--text-sm); text-transform: capitalize; white-space: nowrap; }

/* ================= Homepage ================= */

.hero {
  position: relative;
  padding-block: clamp(1.5rem, 3vw, 2.25rem) clamp(1.25rem, 2.5vw, 2rem);
  overflow: hidden;
}
/* Blueprint grid fading out toward the fold + soft blue aura */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line-light) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-light) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  mask-image: linear-gradient(180deg, black 0%, black 45%, transparent 95%);
  -webkit-mask-image: linear-gradient(180deg, black 0%, black 45%, transparent 95%);
}
.hero::after {
  content: "";
  position: absolute;
  top: -22rem;
  left: 50%;
  transform: translateX(-58%);
  width: 72rem;
  height: 42rem;
  pointer-events: none;
  background: radial-gradient(ellipse 50% 50% at 50% 50%, rgba(36, 116, 255, 0.09), transparent 70%);
}
.hero > .container--wide { position: relative; z-index: 1; }
.hero__grid {
  display: grid;
  /* Fixed panel width: it is a compact readout, not a column that should
     grow with the viewport. 21rem is the point below which its head and stat
     labels start wrapping and it gets taller instead of smaller. */
  grid-template-columns: minmax(0, 1fr) 21rem;
  gap: var(--space-7);
  align-items: start;
}
.hero h1 {
  font-size: var(--text-hero);
  letter-spacing: -0.035em;
  line-height: 1.05;
  margin-bottom: var(--space-5);
}
/* The single accent word — one color doing all the work */
.hero h1 .accent {
  background: linear-gradient(92deg, var(--electric-blue) 10%, var(--cyan) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero__support {
  font-size: var(--text-lg);
  line-height: 1.55;
  color: var(--ink-secondary);
  max-width: 34rem;
  margin-bottom: var(--space-3);
}
.hero__secondary {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--ink-muted);
  margin-bottom: var(--space-5);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}
.hero__gh-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--ink-secondary);
  margin-left: var(--space-2);
}
.hero__gh-link:hover { color: var(--electric-blue); }

/* Hero orbit panel — a precision instrument, not a decoration */
.hero-panel {
  position: relative;
  background:
    radial-gradient(ellipse 90% 70% at 30% -10%, rgba(36, 116, 255, 0.22), transparent 60%),
    radial-gradient(ellipse 70% 60% at 100% 110%, rgba(24, 183, 201, 0.1), transparent 60%),
    linear-gradient(180deg, #101C3B 0%, var(--navy) 100%);
  border: 1px solid rgba(126, 138, 163, 0.28);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  color: #C6CFE2;
  box-shadow:
    inset 0 1px 0 rgba(247, 249, 252, 0.07),
    0 24px 60px -24px rgba(13, 23, 48, 0.5);
  overflow: hidden;
}
/* Fine grid inside the instrument */
.hero-panel .panel-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-dark) 1px, transparent 1px);
  background-size: 28px 28px;
  mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, black 20%, transparent 95%);
  -webkit-mask-image: radial-gradient(ellipse 90% 80% at 50% 30%, black 20%, transparent 95%);
}
.hero-panel__head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-2);
}
.hero-panel__title {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: #8D99B4;
}
.hero-panel__release {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--cyan);
  background: rgba(24, 183, 201, 0.12);
  border: 1px solid rgba(24, 183, 201, 0.35);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  white-space: nowrap;
}
.hero-panel__release .pulse-dot {
  width: 0.4rem; height: 0.4rem;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}
@media (prefers-reduced-motion: reduce) {
  .hero-panel__release .pulse-dot { animation: none; }
}
.hero-panel__orbit {
  display: block;
  width: min(8rem, 62%);
  margin: 0 auto;
  position: relative;
}
/* Nucleus pulse ring */
@keyframes nucleus-ring {
  0% { transform: scale(0.8); opacity: 0.9; }
  70%, 100% { transform: scale(1.9); opacity: 0; }
}
.pulse-ring {
  transform-origin: 120px 120px;
  transform-box: view-box;
  animation: nucleus-ring 3.2s var(--ease-out-expo) infinite;
}
@media (prefers-reduced-motion: reduce) {
  .pulse-ring { animation: none; opacity: 0.4; }
}
.hero-panel__stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-3);
  margin-top: var(--space-2);
}
.hero-panel__stats .stat__value { color: #fff; font-size: var(--text-lg); }
.hero-panel__stats .stat__label { color: #8D99B4; }
.hero-panel__note {
  margin: var(--space-3) 0 0;
  font-size: var(--text-xs);
  color: #8D99B4;
}

@media (max-width: 980px) {
  .hero__grid { grid-template-columns: 1fr; }
  .hero-panel { max-width: 28rem; }
}

/* Affiliation band — rolling marquee of contributor institutions */
.logo-band {
  border-block: 1px solid var(--border);
  background: var(--surface);
  padding-block: var(--space-5);
  overflow: hidden;
}
.logo-band__label {
  display: block;
  text-align: center;
  margin-bottom: var(--space-4);
}
/* Viewport for the track; edges fade so marks enter and leave softly */
.logo-band__viewport {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, black 8%, black 92%, transparent);
}
.logo-band__track {
  display: flex;
  width: max-content;
}
/* Static, centred fallback until js/pages/home.js clones the group */
.logo-band__track:not(.is-rolling) {
  width: 100%;
  justify-content: center;
}
.logo-band__track.is-rolling {
  animation: logo-band-roll var(--band-duration, 40s) linear infinite;
}
.logo-band__viewport:hover .logo-band__track.is-rolling,
.logo-band__track.is-rolling:focus-within {
  animation-play-state: paused;
}
@keyframes logo-band-roll {
  to { transform: translateX(calc(-100% / var(--band-copies, 2))); }
}
.logo-band__group {
  display: flex;
  align-items: center;
  gap: clamp(2.5rem, 5vw, 4.5rem);
  padding-right: clamp(2.5rem, 5vw, 4.5rem);
  margin: 0;
  padding-left: 0;
  list-style: none;
  flex-shrink: 0;
}
.logo-band__group li { margin: 0; display: flex; align-items: center; }
/* Marks read as one neutral set; colour returns on hover */
.logo-band__logo {
  height: 2.5rem;
  width: auto;
  /* Very wide lockups letterbox down instead of running away with the row */
  max-width: 12rem;
  object-fit: contain;
  filter: grayscale(1);
  opacity: 0.72;
  transition: filter var(--dur-med) var(--ease), opacity var(--dur-med) var(--ease);
}
.logo-band__logo:hover { filter: none; opacity: 1; }
/* Tongji publishes only a white-on-transparent lockup — paint it via its alpha */
.logo-band__logo--mask {
  display: block;
  background: var(--ink);
  opacity: 0.72;
  -webkit-mask-position: center; mask-position: center;
  -webkit-mask-size: contain;   mask-size: contain;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  transition: opacity var(--dur-med) var(--ease);
}
.logo-band__logo--mask:hover { opacity: 1; }
/* Round seals read smaller than wordmarks at equal height — size them optically */
.logo-band__logo--seal { height: 3.6rem; }
.logo-band__logo--tongji {
  width: 7.5rem; height: 2.5rem;
  -webkit-mask-image: url("../assets/logos/tongji-university.png");
  mask-image: url("../assets/logos/tongji-university.png");
}
@media (max-width: 620px) {
  .logo-band__logo { height: 2rem; }
  .logo-band__logo--seal { height: 2.9rem; }
  .logo-band__logo--tongji { width: 6rem; height: 2rem; }
}
@media (prefers-reduced-motion: reduce) {
  .logo-band__track.is-rolling { animation: none; }
}

/* Measure section */
.measure-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-6) var(--space-6);
  margin-top: var(--space-6);
}
.measure-card {
  position: relative;
  border-top: 1px solid var(--border-strong);
  padding-top: var(--space-5);
  transition: border-color var(--dur-med) var(--ease);
}
/* Index marker sitting on the rule, like an axis label */
.measure-card::before {
  counter-increment: measure;
  content: "0" counter(measure);
  position: absolute;
  top: -0.55rem;
  left: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--electric-blue);
  background: var(--bg);
  padding-right: 0.6rem;
}
.measure-grid { counter-reset: measure; }
.measure-card:hover { border-top-color: var(--electric-blue); }
.measure-card h3 { margin-bottom: var(--space-3); font-size: var(--text-lg); }
.measure-card p { color: var(--ink-secondary); font-size: var(--text-base); margin: 0; }
.measure-note {
  margin-top: var(--space-5);
  color: var(--ink-secondary);
  font-size: var(--text-sm);
  border-left: 2px solid var(--cyan);
  padding-left: var(--space-4);
  max-width: 42rem;
}
@media (max-width: 800px) {
  .measure-grid { grid-template-columns: 1fr; }
}

/* Section headers */
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
  flex-wrap: wrap;
}
.section-head h1,
.section-head h2 { margin-bottom: var(--space-2); font-size: clamp(1.7rem, 3.2vw, 2.25rem); }
.section-head p { margin: 0; color: var(--ink-muted); max-width: 40rem; }

/* Frontier preview */
.frontier-section { background: var(--surface); border-block: 1px solid var(--border); }

/* Roadmap — one compact row of stops: three phases, two submissions between
   Bench and Dataset. Top rules rather than boxes, matching .measure-card. */
.plan {
  list-style: none;
  margin: var(--space-5) 0 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-5) var(--space-4);
  align-items: start;
}
.plan__step {
  margin: 0;
  border-top: 2px solid var(--border-strong);
  padding-top: var(--space-3);
}
.plan__step--current { border-top-color: var(--electric-blue); }
/* Submissions are stops along the way, not phases — dashed rule, cyan accent */
.plan__step--submission { border-top-style: dashed; border-top-color: var(--cyan); }
.plan__kicker {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--ink-faint);
  margin-bottom: var(--space-1);
}
.plan__step--current .plan__kicker { color: var(--electric-blue); }
.plan__step--submission .plan__kicker { color: var(--cyan-deep); }
.plan__step h3 {
  font-size: var(--text-md);
  margin-bottom: var(--space-1);
}
.plan__step p {
  margin: 0;
  font-size: var(--text-sm);
  color: var(--ink-muted);
  line-height: 1.5;
}
@media (max-width: 900px) {
  .plan { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 520px) {
  .plan { grid-template-columns: 1fr; gap: var(--space-4); }
}

/* Community */
.community {
  position: relative;
  background:
    radial-gradient(ellipse 65% 90% at 12% 0%, rgba(36, 116, 255, 0.2), transparent 60%),
    radial-gradient(ellipse 45% 70% at 95% 100%, rgba(24, 183, 201, 0.12), transparent 60%),
    linear-gradient(180deg, #111D3C 0%, var(--navy) 100%);
  border: 1px solid rgba(126, 138, 163, 0.25);
  color: #C6CFE2;
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 5vw, 4rem);
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: var(--space-6);
  align-items: center;
  overflow: hidden;
  box-shadow: inset 0 1px 0 rgba(247, 249, 252, 0.06), 0 30px 70px -35px rgba(13, 23, 48, 0.5);
}
.community::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-dark) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  mask-image: radial-gradient(ellipse 90% 90% at 30% 20%, black 20%, transparent 95%);
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 30% 20%, black 20%, transparent 95%);
}
.community > * { position: relative; }
/* Orbit watermark curving off the corner */
.community::after {
  content: "";
  position: absolute;
  right: -7rem;
  top: -9rem;
  width: 24rem;
  height: 24rem;
  border: 1px solid rgba(247, 249, 252, 0.07);
  border-radius: 50%;
  pointer-events: none;
}
.community h2 { color: #fff; }
.community p { color: #A5B1C9; }
.community__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); justify-content: flex-end; }
@media (max-width: 860px) {
  .community { grid-template-columns: 1fr; }
  .community__actions { justify-content: flex-start; }
}

/* News list */
.news-list { list-style: none; padding: 0; margin: 0; }
.news-list li {
  display: grid;
  grid-template-columns: 7.5rem 1fr;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--border-faint);
  margin: 0;
}
.news-list li:last-child { border-bottom: none; }
.news-list time {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--ink-muted);
  padding-top: 0.2rem;
}
.news-list h3 { font-size: var(--text-base); margin-bottom: 0.25rem; }
.news-list p { margin: 0; font-size: var(--text-sm); color: var(--ink-secondary); }
@media (max-width: 620px) {
  .news-list li { grid-template-columns: 1fr; gap: var(--space-1); }
}

/* ================= Page headers =================
   Every section page opens the way the front page does: a navy band under
   the dark header, large type, one line of lede. */
.page-head {
  position: relative;
  padding-block: clamp(3rem, 6vw, 4.5rem) clamp(2.25rem, 4vw, 3rem);
  background:
    radial-gradient(ellipse 55% 70% at 15% 0%, rgba(36, 116, 255, 0.22), transparent 60%),
    radial-gradient(ellipse 40% 60% at 95% 100%, rgba(24, 183, 201, 0.1), transparent 60%),
    linear-gradient(180deg, #0A1428 0%, var(--navy) 100%);
  color: #C6CFE2;
  overflow: hidden;
}
.page-head::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--grid-line-dark) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line-dark) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  mask-image: radial-gradient(ellipse 80% 90% at 30% 30%, black 20%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 90% at 30% 30%, black 20%, transparent 100%);
}
/* orbit watermark off the right edge */
.page-head::after {
  content: "";
  position: absolute;
  right: -6rem;
  top: -8rem;
  width: 22rem;
  height: 22rem;
  border: 1px solid rgba(247, 249, 252, 0.08);
  border-radius: 50%;
  pointer-events: none;
}
.page-head > .container,
.page-head > .container--wide { position: relative; z-index: 1; }
.page-head .eyebrow { margin-bottom: var(--space-3); color: var(--cyan); }
.page-head .eyebrow::before { background: var(--cyan); }
.page-head h1 { margin-bottom: var(--space-3); font-size: clamp(2.2rem, 4.6vw, 3.4rem); letter-spacing: -0.04em; color: #fff; }
.page-head .lede { margin-bottom: 0; color: #B9C4DA; }
.page-head .stat__value { color: #fff; }
.page-head .stat__label { color: #8FA0C4; }
.page-head__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  margin-top: var(--space-4);
}
/* The first band under a page head needs no full section lead-in */
.page-head + .section { padding-top: clamp(2.25rem, 4vw, 3.25rem); }
.page-head + .section-head,
.page-head + .container { padding-top: var(--space-4); }

/* ================= Task explorer ================= */
.explorer-controls {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding-block: var(--space-5);
}
.explorer-controls__row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: flex-end;
}
.explorer-controls__row .search-input { align-self: flex-end; }
.explorer-count {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--ink-muted);
  letter-spacing: 0.05em;
}
/* One column of rows in a single bordered panel. Kept as a grid so the
   empty state can still span it with grid-column: 1 / -1. */
.task-list {
  display: grid;
  grid-template-columns: 1fr;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  margin-bottom: var(--space-7);
}

/* ================= Task detail ================= */
.task-hero {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding-block: var(--space-6);
}
.task-hero__badges { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: var(--space-3); align-items: center; }
.task-hero__id {
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink-secondary);
}
.task-hero h1 { font-size: var(--text-2xl); max-width: 46rem; }
.task-hero__meta {
  margin-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  font-size: var(--text-sm);
  color: var(--ink-muted);
}
.task-hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-5); }

.task-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 20rem;
  gap: var(--space-7);
  padding-block: var(--space-6);
  align-items: start;
}
/* While the editor is open the aside is hidden, but its 20rem track stays
   declared — which left ~400px of dead space and squeezed the editor's two
   columns to 380px each. Collapse to a single track for the duration. */
.task-layout--editing { grid-template-columns: minmax(0, 1fr); }
.task-layout__main > section { margin-bottom: var(--space-6); }
.task-layout__main h2 {
  font-size: var(--text-xl);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
  margin-bottom: var(--space-4);
}
.task-layout__aside {
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.review-workbench {
  margin-top: var(--space-8);
  padding: var(--space-6);
  border: 1px solid color-mix(in srgb, var(--electric-blue) 32%, var(--border));
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--selected-bg) 68%, transparent), transparent 42%),
    var(--surface);
  box-shadow: var(--shadow-sm);
}
.task-layout__main > .review-workbench { margin-bottom: 0; }
.task-layout__main > .review-workbench > .review-workbench__head h2 {
  margin: 0.2rem 0 0;
  padding: 0;
  border: 0;
}
.review-workbench__head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: var(--space-4);
  padding-bottom: var(--space-5);
  border-bottom: 1px solid var(--border);
}
.review-workbench__head p {
  max-width: 62ch;
  margin: var(--space-2) 0 0;
  color: var(--ink-muted);
  font-size: var(--text-sm);
}
.review-workbench__current {
  flex: none;
  padding: 0.3rem 0.65rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  background: var(--surface);
  color: var(--ink-secondary);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}
.review-workbench__form { margin-top: var(--space-5); }
.review-workbench__group {
  margin-top: var(--space-6);
  padding-top: var(--space-5);
  border-top: 1px solid var(--border-faint);
}
.review-workbench__group-title {
  display: grid;
  grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}
.review-workbench__group-title > span {
  color: var(--electric-blue);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.08em;
  padding-top: 0.18rem;
}
.review-workbench__group-title h3 { margin: 0; font-size: var(--text-lg); color: var(--navy); }
.review-workbench__group-title p { margin: 0.2rem 0 0; color: var(--ink-muted); font-size: var(--text-xs); }
.review-workbench input[readonly] { background: var(--surface-sunken); color: var(--ink-muted); font-family: var(--font-mono); }
.review-decision { border: 0; padding: 0; margin: var(--space-5) 0 0; min-width: 0; }
.review-decision legend { margin-bottom: 0.45rem; color: var(--navy); font-size: var(--text-sm); font-weight: 600; }
.review-decision__rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-2);
}
.review-decision__option { position: relative; cursor: pointer; }
.review-decision__option input { position: absolute; opacity: 0; inset: 0; }
.review-decision__option > span {
  display: flex;
  min-height: 4.25rem;
  flex-direction: column;
  justify-content: center;
  gap: 0.2rem;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.review-decision__option strong { color: var(--navy); font-size: var(--text-sm); }
.review-decision__option small { color: var(--ink-muted); font-size: var(--text-xs); line-height: 1.35; }
.review-decision__option input:focus-visible + span { box-shadow: var(--focus-ring); }
.review-decision__option input:checked + span { border-color: var(--electric-blue); background: var(--selected-bg); }
.review-decision__option--approved input:checked + span { border-color: var(--green); background: var(--green-soft); }
.review-decision__option--rejected input:checked + span { border-color: var(--red); background: var(--red-soft); }
.review-workbench__actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border);
}
.review-workbench__actions > div:first-child { flex: 1; }

@media (max-width: 700px) {
  .review-workbench { padding: var(--space-4); }
  .review-workbench__head, .review-workbench__actions { flex-direction: column; align-items: stretch; }
  .review-decision__rail { grid-template-columns: 1fr; }
}
.aside-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
}
.aside-card h3 {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-bottom: var(--space-3);
}
.aside-card ul { list-style: none; padding: 0; margin: 0; }
.aside-card li {
  padding-block: 0.45rem;
  border-bottom: 1px solid var(--border-faint);
  font-size: var(--text-sm);
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  margin: 0;
}
.aside-card li:last-child { border-bottom: none; }
.person {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  padding-block: var(--space-2);
}
.person__name { font-weight: 600; color: var(--navy); font-size: var(--text-sm); }
.person__affil { font-size: var(--text-xs); color: var(--ink-muted); }

@media (max-width: 980px) {
  .task-layout { grid-template-columns: 1fr; }
  .task-layout__aside { position: static; }
}

/* ================= Leaderboard ================= */
.lb-controls {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: flex-end;
  padding-block: var(--space-5);
}
.lb-expand-row td {
  background: var(--surface-sunken);
  padding: var(--space-4) var(--space-5);
}
.lb-expand-btn {
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  width: 1.6rem;
  height: 1.6rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-secondary);
  transition: transform var(--dur-fast) var(--ease);
}
.lb-expand-btn[aria-expanded="true"] { transform: rotate(90deg); }

/* ================= Submit ================= */

/* Wizard */
.wizard {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: var(--space-6);
  align-items: start;
}
.wizard__nav {
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.wizard__nav-item {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.55rem 0.75rem;
  border-radius: var(--radius-sm);
  border: none;
  background: none;
  text-align: left;
  font-size: var(--text-sm);
  color: var(--ink-secondary);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease);
}
.wizard__nav-item:hover { background: var(--hover-bg); }
.wizard__nav-item[aria-current="step"] {
  background: var(--selected-bg);
  color: var(--navy);
  font-weight: 600;
}
.wizard__nav-num {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  border: 1px solid var(--border-strong);
  border-radius: 50%;
  width: 1.35rem;
  height: 1.35rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.wizard__nav-item[aria-current="step"] .wizard__nav-num {
  background: var(--electric-blue);
  border-color: var(--electric-blue);
  color: #fff;
}
.wizard__nav-item.is-complete .wizard__nav-num {
  background: var(--cyan-soft);
  border-color: var(--cyan);
  color: var(--cyan-deep);
}

.wizard__panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}
.wizard__panel h2 { margin-bottom: var(--space-2); }
.wizard__panel > p { color: var(--ink-muted); font-size: var(--text-sm); }
.wizard__footer {
  display: flex;
  justify-content: space-between;
  gap: var(--space-3);
  margin-top: var(--space-6);
  padding-top: var(--space-4);
  border-top: 1px solid var(--border-faint);
}

.form-field { margin-bottom: var(--space-4); }
/* Holds only a validation message (e.g. the joined affiliations being too long). */
.form-field--errors-only:empty { display: none; }
.form-field label {
  display: block;
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--navy);
  margin-bottom: 0.35rem;
}
.form-field .hint {
  font-size: var(--text-xs);
  color: var(--ink-muted);
  margin: 0.3rem 0 0;
}
.form-field input[type="text"],
.form-field input[type="email"],
.form-field textarea,
.form-field select {
  width: 100%;
  padding: 0.6rem 0.8rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-size: var(--text-sm);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.form-field textarea { resize: vertical; min-height: 5.5rem; line-height: 1.55; }
.form-field input:focus,
.form-field textarea:focus,
.form-field select:focus {
  outline: none;
  border-color: var(--electric-blue);
  box-shadow: var(--focus-ring);
}
.form-field .optional {
  font-weight: 400;
  color: var(--ink-faint);
  font-size: var(--text-xs);
}
.checkbox-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.checkbox-chip {
  position: relative;
}
.checkbox-chip input {
  position: absolute;
  opacity: 0;
  inset: 0;
  cursor: pointer;
}
.checkbox-chip span {
  display: inline-flex;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-full);
  padding: 0.3rem 0.75rem;
  color: var(--ink-secondary);
  transition: all var(--dur-fast) var(--ease);
}
.checkbox-chip input:checked + span {
  background: var(--selected-bg);
  border-color: var(--electric-blue);
  color: #1B5FD9;
  font-weight: 600;
}
.checkbox-chip input:focus-visible + span { box-shadow: var(--focus-ring); }

.proposal-preview {
  background: var(--navy);
  color: #D7DEEC;
  border-radius: var(--radius-md);
  padding: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  line-height: 1.7;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  max-height: 26rem;
  overflow-y: auto;
}

/* Control-plane form reuses the wizard components above; only these field-specific details differ. */
.proposal-intake__status { margin: 0 0 var(--space-4); color: var(--ink-secondary); font-size: var(--text-sm); }
.proposal-intake__status.is-error { color: #B42318; }
.proposal-intake__status.is-success { color: #087A69; }
.proposal-form__classification { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-2); }
.proposal-intake__hint { margin: 0; color: var(--ink-muted); font-family: var(--font-mono); font-size: var(--text-xs); }
@media (max-width: 560px) { .proposal-form__classification { grid-template-columns: 1fr; } }

/* Proposal form — field details */
.wizard__step {
  border: 0;
  padding: 0;
  margin: 0;
  min-width: 0;
}
.wizard.is-submitted { grid-template-columns: 1fr; }
.field-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-3);
  align-items: start;
}
.form-field label .counter {
  float: right;
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: var(--text-xs);
  color: var(--ink-faint);
  letter-spacing: 0.02em;
}
.form-field label .counter.is-met { color: var(--cyan-deep); }
/* Approaching or past the control plane's maximum. A field can sit a handful
   of characters under its cap, and without this the author only discovers it
   from a 422 after writing. */
.form-field label .counter.is-near { color: var(--amber); font-weight: 600; }
.form-field label .counter.is-over { color: var(--red); font-weight: 600; }
.form-field label .counter.is-met::after {
  content: "";
  display: inline-block;
  width: 0.75em; height: 0.75em;
  margin-left: 0.3em;
  vertical-align: -0.05em;
  background: currentColor;
  -webkit-mask: var(--tick-mask) center/contain no-repeat;
  mask: var(--tick-mask) center/contain no-repeat;
}
.form-field.is-invalid input,
.form-field.is-invalid textarea,
.form-field.is-invalid select,
.form-field [data-field].is-invalid input {
  border-color: var(--red);
}
.field-error {
  margin: 0.35rem 0 0;
  font-size: var(--text-xs);
  color: var(--red);
}
.form-field .hint code,
.slug-preview {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--ink-secondary);
  background: var(--surface-sunken);
  padding: 0.1rem 0.4rem;
  border-radius: var(--radius-sm);
}

/* Review step */
.review-list {
  display: grid;
  gap: 0.5rem;
  margin: var(--space-5) 0;
}
.review-item {
  display: grid;
  grid-template-columns: 1.6rem minmax(0, 1fr) auto auto;
  align-items: center;
  gap: var(--space-3);
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  font-size: var(--text-sm);
}
.review-item__status {
  width: 1.5rem;
  height: 1.5rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
}
/* The tick is an inline SVG (U+2713 is outside the served font subset) */
.review-item__status svg { width: 0.8rem; height: 0.8rem; }
.review-item.is-ok .review-item__status { background: var(--cyan-soft); color: var(--cyan-deep); }
.review-item.is-missing .review-item__status { background: var(--amber-soft); color: var(--amber); }
.review-item__label { font-weight: 600; color: var(--navy); }
.review-item__note { color: var(--ink-muted); font-size: var(--text-xs); }
.review-item.is-missing .review-item__note { color: var(--amber); }
.review-item__edit {
  background: none;
  border: none;
  color: var(--electric-blue);
  font-weight: 600;
  font-size: var(--text-xs);
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
}
.review-item__edit:hover { background: var(--selected-bg); }

.auth-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  background: var(--surface-sunken);
  border: 1px solid var(--border-faint);
  margin-bottom: var(--space-5);
}
.auth-card__state { font-size: var(--text-sm); color: var(--ink-secondary); flex: 1 1 18rem; }
.auth-card__state[data-state="ready"] { color: var(--navy); }
.auth-card__state[data-state="unreachable"] { color: var(--amber); }

.submit-actions {
  display: flex;
  gap: var(--space-3);
  flex-wrap: wrap;
  align-items: center;
}
.submit-status { margin: var(--space-3) 0 0; font-size: var(--text-sm); color: var(--ink-secondary); min-height: 1.4em; }
.submit-status.is-error { color: var(--red); }
.submit-status.is-success { color: var(--green); }

.preview-details { margin-top: var(--space-5); }
.preview-details summary {
  cursor: pointer;
  font-size: var(--text-sm);
  color: var(--ink-muted);
  font-weight: 500;
}
.preview-details[open] summary { margin-bottom: var(--space-3); }

/* Success state */
.submit-success { text-align: left; }
.submit-success__mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: 50%;
  background: var(--green-soft);
  color: var(--green);
  margin-bottom: var(--space-3);
}
.submit-success__mark svg { width: 1.4rem; height: 1.4rem; }
.submit-success h2:focus { outline: none; }
.submit-success > p { color: var(--ink-secondary); max-width: 56ch; }
.next-steps {
  margin: var(--space-6) 0 0;
  padding: 0 0 0 1.2rem;
  display: grid;
  gap: 0.6rem;
  font-size: var(--text-sm);
  color: var(--ink-secondary);
  max-width: 60ch;
}
.next-steps strong { color: var(--navy); }

@media (max-width: 560px) {
  .field-row { grid-template-columns: 1fr; }
  .review-item { grid-template-columns: 1.6rem minmax(0, 1fr) auto; }
  .review-item__note { grid-column: 2; }
}

@media (max-width: 900px) {
  .wizard { grid-template-columns: 1fr; }
  .wizard__nav {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }
  .wizard__panel { padding: var(--space-5); }
}

/* ================= Contributors ================= */
.role-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(15rem, 1fr));
  gap: var(--space-5);
}
.role-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: var(--space-5);
}
.role-card h3 { font-size: var(--text-base); }
.role-card .threshold {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--electric-blue);
  display: block;
  margin-bottom: var(--space-3);
}
.role-card p { margin: 0; font-size: var(--text-sm); color: var(--ink-secondary); }

.contributor-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(16rem, 1fr));
  gap: var(--space-5);
}

/* ---- Leaderboard ----
   Category colours are validated for colour-vision deficiency in this order
   (task → review → community → maintenance) and never reused as status. */
:root {
  --cat-task: #2474FF;
  --cat-review: #0E93A3;
  --cat-community: #B45309;
  --cat-maintain: #6E56CF;
}
.empty-state__actions { display: inline-flex; gap: 0.75rem; flex-wrap: wrap; justify-content: center; }
.lb-demo-note { margin-bottom: var(--space-5); }

.lb-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-3);
}
.lb-rankby {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
}
.lb-rankby__label {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-right: var(--space-1);
}
.lb-rankby .filter-toggle { gap: 0.5rem; }
.lb-controls__right {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  gap: var(--space-3);
}
.lb-controls__right .search-input { flex: 1 1 16rem; }
#lb-count { margin: 0 0 var(--space-4); }

/* Podium: the top three, composed as one row of three matching cards */
.lb-podium {
  list-style: none;
  margin: 0 0 var(--space-5);
  padding: 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--space-4);
}
.lb-podium__card {
  position: relative;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-xs);
  overflow: hidden;
}
.lb-podium__card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--border-strong);
}
.lb-podium__card--1::before { background: linear-gradient(90deg, var(--electric-blue), var(--cyan)); }
.lb-podium__card--2::before { background: var(--cyan); }
.lb-podium__card--1 {
  border-color: rgba(36, 116, 255, 0.35);
  box-shadow: var(--shadow-sm), 0 0 0 4px rgba(36, 116, 255, 0.06);
}
.lb-podium__head { display: flex; align-items: center; gap: var(--space-3); }
.lb-podium__who { display: flex; flex-direction: column; min-width: 0; }
.lb-podium__points { display: flex; align-items: baseline; gap: 0.4rem; margin-top: var(--space-1); }
.lb-podium__value {
  font-family: var(--font-mono);
  font-size: var(--text-2xl);
  font-weight: 600;
  color: var(--navy);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.lb-podium__unit {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--ink-muted);
}
.lb-podium__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: var(--space-3);
  border-top: 1px solid var(--border-faint);
}
.lb-podium__counts { font-size: var(--text-xs); color: var(--ink-muted); }

/* Rank mark: the top three carry a filled disc, the rest a plain number */
.lb-rank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 1.75rem;
  height: 1.75rem;
  padding-inline: 0.35rem;
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--ink-muted);
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
}
.lb-rank--1 { background: var(--electric-blue); color: #fff; box-shadow: 0 0 0 3px rgba(36, 116, 255, 0.18); }
.lb-rank--2 { background: var(--cyan-soft); color: var(--cyan-deep); border: 1px solid #BEE8EC; }
.lb-rank--3 { background: var(--slate-soft); color: #55617C; border: 1px solid #D5DBE6; }

/* People */
.lb-who { display: flex; align-items: center; gap: var(--space-3); min-width: 14rem; }
.lb-avatar-host { position: relative; width: 2.5rem; height: 2.5rem; flex-shrink: 0; display: inline-grid; }
.lb-avatar-host > * { grid-area: 1 / 1; }
.lb-avatar {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  object-fit: cover;
  background: var(--surface-sunken);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}
.lb-avatar--initials {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--electric-blue);
  background: var(--selected-bg);
  border: 1px solid #C9DCFF;
}
.lb-name { display: block; font-weight: 600; color: var(--navy); line-height: 1.3; }
.lb-name a { color: inherit; }
.lb-name a:hover { color: var(--electric-blue); text-decoration: none; }
.lb-affil { display: block; font-size: var(--text-xs); color: var(--ink-muted); line-height: 1.3; }
.lb-areas { display: inline-flex; flex-wrap: wrap; gap: 0.3rem; }

/* Role tiers: one badge family, four steps of emphasis */
.lb-role {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.6563rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-full);
  border: 1px solid transparent;
  white-space: nowrap;
}
.role--contributor { background: var(--surface); color: var(--ink-secondary); border-color: var(--border-strong); }
.role--active { background: var(--blue-soft); color: #1B5FD9; border-color: #C9DCFF; }
.role--core { background: var(--cyan-soft); color: var(--cyan-deep); border-color: #BEE8EC; }
.role--maintainer { background: var(--navy); color: #fff; border-color: var(--navy); }

/* Contribution mix bar: length is relative to the leader, segments show the
   category split, and a 2px surface gap keeps neighbouring fills apart. */
.lb-mix { display: block; width: 100%; min-width: 9rem; height: 0.6rem; }
.lb-mix__track {
  display: flex;
  gap: 2px;
  height: 100%;
  min-width: 0.6rem;
  transition: width var(--dur-med) var(--ease);
}
.lb-mix__seg { flex: 0 1 0; min-width: 3px; border-radius: 2px; }
.lb-mix__seg--task { background: var(--cat-task); }
.lb-mix__seg--review { background: var(--cat-review); }
.lb-mix__seg--community { background: var(--cat-community); }
.lb-mix__seg--maintain { background: var(--cat-maintain); }

.lb-legend {
  list-style: none;
  margin: var(--space-4) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-5);
  font-size: var(--text-xs);
  color: var(--ink-secondary);
}
.lb-legend li { display: inline-flex; align-items: center; gap: 0.45rem; margin: 0; }
.lb-legend__swatch { display: inline-block; width: 0.7rem; height: 0.7rem; border-radius: 2px; flex-shrink: 0; }
.lb-legend__hint { color: var(--ink-faint); }
.lb-foot { margin: var(--space-4) 0 0; font-size: var(--text-sm); color: var(--ink-muted); max-width: 52rem; }

/* Table specifics */
.lb-table { min-width: 860px; }
.lb-table td { vertical-align: middle; }
.lb-col-rank { width: 3rem; }
.lb-col-mix { width: 22%; }
.lb-col-points strong { font-family: var(--font-mono); font-size: var(--text-base); color: var(--navy); }
.lb-table tbody tr:nth-child(-n+3) td { background: rgba(36, 116, 255, 0.025); }
.lb-empty-row { text-align: center; color: var(--ink-muted); padding-block: var(--space-6) !important; }

@media (max-width: 900px) {
  .lb-podium { grid-template-columns: 1fr; }
}

/* ================= About ================= */
.prose { max-width: 46rem; }
.prose h2 {
  font-size: var(--text-xl);
  margin-top: var(--space-7);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}
.prose h2:first-child { margin-top: 0; }
.prose p, .prose li { color: var(--ink-secondary); }
.prose strong { color: var(--navy); }

.about-toc {
  position: sticky;
  top: calc(var(--header-height) + var(--space-4));
}
.about-toc ul { list-style: none; padding: 0; margin: 0; }
.about-toc a {
  display: block;
  padding: 0.4rem 0.75rem;
  color: var(--ink-muted);
  font-size: var(--text-sm);
  border-left: 2px solid var(--border);
  transition: color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease);
}
.about-toc a:hover { color: var(--navy); border-color: var(--slate); text-decoration: none; }
.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 15rem;
  gap: var(--space-8);
  padding-block: var(--space-6);
}
@media (max-width: 980px) {
  .about-layout { grid-template-columns: 1fr; }
  .about-toc { display: none; }
}

/* ================= Releases ================= */
.release-card {
  display: grid;
  grid-template-columns: 10rem minmax(0, 1fr);
  gap: var(--space-5);
  padding: var(--space-6);
}
.release-card__version {
  font-family: var(--font-mono);
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--navy);
}
.release-card__stats {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-5);
  margin-top: var(--space-4);
}
@media (max-width: 660px) {
  .release-card { grid-template-columns: 1fr; }
}

/* ================= 404 ================= */
.notfound {
  text-align: center;
  padding-block: var(--space-7);
}
.notfound h1 { font-size: var(--text-4xl); }
.notfound .mono { color: var(--ink-muted); }

/* ================= Reviewer application ================= */
.form-block {
  border: none;
  border-top: 1px solid var(--border);
  margin: 0 0 var(--space-6);
  padding: var(--space-5) 0 0;
}
.form-block legend {
  padding: 0;
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  color: var(--electric-blue);
}
/* Domain picker: checkboxes that read as selectable chips */
.choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(11rem, 1fr));
  gap: var(--space-2);
  margin-top: var(--space-2);
}
.choice {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.55rem 0.75rem;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-md);
  background: var(--surface);
  font-size: var(--text-sm);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease);
}
.choice:hover { border-color: var(--slate); background: var(--hover-bg); }
.choice input { accent-color: var(--electric-blue); flex-shrink: 0; margin: 0; }
.choice:has(input:checked) {
  border-color: var(--electric-blue);
  background: var(--selected-bg);
  font-weight: 600;
}
.choice:has(input:focus-visible) { box-shadow: var(--focus-ring); }

.reviewer-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-5);
}
.reviewer-auth { margin: 0 0 var(--space-5); }
.reviewer-auth__status { margin: 0; color: var(--ink-secondary); font-size: var(--text-sm); }
.reviewer-email-otp__controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-3);
}
.form-field .reviewer-email-otp__controls input[type="text"] { width: 11rem; max-width: 100%; }
.reviewer-email-otp__controls .btn { flex: none; }
.reviewer-note { margin-top: var(--space-4); max-width: 44rem; }

/* ================= Reading measure =================
   Aligning every section to one column means prose would otherwise run the
   full 1240px. The column stays put; the line length is capped instead. */
.measure { max-width: 46rem; }
.news-list { max-width: 52rem; }

/* ================= Rich proposal text =================
   Proposal fields rendered from Discussion-style text (js/richtext.js):
   paragraphs, subheadings, lists, links, code and KaTeX formulas. */
.rich {
  color: var(--ink-secondary);
  line-height: 1.65;
  overflow-wrap: anywhere;
}
.rich > :first-child { margin-top: 0; }
.rich > :last-child { margin-bottom: 0; }
.rich p { margin: 0 0 var(--space-3); }
.rich h3, .rich h4 {
  color: var(--navy);
  margin: var(--space-4) 0 var(--space-2);
  line-height: var(--leading-snug);
}
.rich h3 { font-size: var(--text-lg); }
.rich h4 { font-size: var(--text-base); font-weight: 600; letter-spacing: -0.01em; }
.rich ul, .rich ol { margin: 0 0 var(--space-3); padding-left: 1.4rem; }
.rich li { margin: 0.3rem 0; color: var(--ink-secondary); }
.rich strong { color: var(--navy); }
.rich a { color: var(--electric-blue); text-decoration: underline; text-underline-offset: 0.15em; }
.rich a:hover { color: var(--navy); }
.rich code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  background: var(--surface-sunken);
  padding: 0.1em 0.4em;
  border-radius: var(--radius-sm);
}
.rich pre {
  background: var(--navy);
  color: #D7DEEC;
  padding: var(--space-4);
  border-radius: var(--radius-md);
  overflow-x: auto;
  font-size: var(--text-xs);
  line-height: 1.6;
  margin: 0 0 var(--space-3);
}
.rich pre code { background: none; padding: 0; color: inherit; font-size: inherit; }
.rich hr { border: 0; border-top: 1px solid var(--border); margin: var(--space-4) 0; }
.rich .katex { font-size: 1.05em; }
.rich .katex-display {
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0.35rem 0;
  margin: var(--space-3) 0;
}

/* Rich text inside compact containers */
.def-grid dd .rich { font-weight: 400; font-size: var(--text-sm); }
.def-grid dd .rich p { color: var(--navy); }
.notice--rich > div { flex: 1; min-width: 0; }
.notice--rich > div > strong { display: block; color: var(--navy); margin-bottom: 0.3rem; }
.notice--rich .rich { font-size: var(--text-sm); }
.verify-panel .rich { font-size: var(--text-sm); }
.task-hero__sync {
  flex-basis: 100%;
  margin: var(--space-2) 0 0;
  font-size: var(--text-xs);
  color: var(--ink-muted);
}

/* Submission preview: rendered view with a Markdown-source toggle */
.preview-toggle {
  display: inline-flex;
  gap: 2px;
  padding: 3px;
  background: var(--surface-sunken);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
}
.preview-toggle__btn {
  border: 0;
  background: transparent;
  padding: 0.35rem 0.95rem;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--ink-muted);
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease);
}
.preview-toggle__btn:hover { color: var(--navy); }
.preview-toggle__btn.is-active { background: var(--surface); color: var(--navy); box-shadow: var(--shadow-xs); }
.preview-toggle__btn:focus-visible { box-shadow: var(--focus-ring); outline: none; }
.proposal-rendered {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  padding: var(--space-5);
  max-height: 32rem;
  overflow-y: auto;
  font-size: var(--text-sm);
}
.proposal-rendered h4 { margin-top: var(--space-5); }
.proposal-rendered > h4:first-child { margin-top: 0; }

/* ================= Contributor rows (form + editor) ================= */
.contrib-rows { display: grid; gap: var(--space-3); }
.contrib-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--space-3);
  align-items: end;
  padding: var(--space-3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
}
.contrib-row__fields { display: grid; grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr)); gap: var(--space-3); min-width: 0; }
.contrib-row__fields .form-field { margin: 0; }
.contrib-row__remove {
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--ink-muted);
  border-radius: var(--radius-full);
  padding: 0.35rem 0.8rem;
  font: inherit;
  font-size: var(--text-xs);
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 0.15rem;
}
.contrib-row__remove:hover { color: var(--red); border-color: var(--red); }
.contrib-add { margin-top: var(--space-3); }
.form-field.is-invalid .contrib-row input { border-color: var(--red); }

/* ================= On-site proposal editor ================= */
.proposal-editor { margin-bottom: var(--space-7); }
.proposal-editor__head {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-5);
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-5);
}
.proposal-editor__head h2 { margin: 0 0 var(--space-2); border: 0; padding: 0; }
.proposal-editor__head p { margin: 0; color: var(--ink-muted); font-size: var(--text-sm); max-width: 44rem; }
.proposal-editor__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}
@media (min-width: 1180px) {
  .proposal-editor--wide .proposal-editor__grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); align-items: start; }
  .proposal-editor--wide .proposal-editor__preview { position: sticky; top: calc(var(--header-height) + var(--space-4)); }
}
.proposal-editor__form .form-field textarea { min-height: 7rem; }
.proposal-editor__preview .proposal-rendered { max-height: min(70vh, 48rem); }
.proposal-editor__preview-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.proposal-editor__preview-head .mono-label { font-size: var(--text-xs); }
/* Sticky to the bottom of the viewport: the form is ~2400px tall, so a Save
   button that only exists at the very end is a button most authors never find. */
.proposal-editor__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  align-items: center;
  margin-top: var(--space-5);
  padding-block: var(--space-4);
  border-top: 1px solid var(--border);
  position: sticky;
  bottom: 0;
  z-index: 3;
  background: var(--bg);
}
.proposal-editor__actions .submit-status { flex: 1 1 16rem; margin: 0; }
.proposal-editor__fallback {
  margin-top: var(--space-4);
}
.task-hero__owner {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--text-xs);
  color: var(--cyan-deep);
  font-weight: 600;
}
.person + .person { border-top: 1px solid var(--border-faint); }