/* ============================================================
 * Projector view — front-of-room, single-screen, no-scroll.
 *
 * Aesthetic: an editorial broadside / front page hung at the
 * front of a lecture hall. Shared style.css supplies the type
 * system and color tokens; this file lays out the page like a
 * printed gazette: ruled sections, folio numerals, marginalia,
 * registration crosses, no chrome of any kind.
 *
 * Hard rules enforced here:
 *   - 100vh × 100vw, no scroll, at 1366×768 / 1920×1080 / 3440×1440
 *   - Question prose >= 3vw, options >= 1.5vw, leaderboard >= 1.4vw
 *   - All color via tokens (light & dark via prefers-color-scheme)
 *   - Honors prefers-reduced-motion (handled in style.css globally)
 * ============================================================ */


/* ---------- Page shell ---------- */

.projector-body {
  margin: 0;
  padding: 0;
  height: 100vh;
  height: 100dvh;
  width: 100vw;
  overflow: hidden;
  background:
    /* faint diagonal weave that reads as paper grain on a projector */
    repeating-linear-gradient(
      135deg,
      transparent 0 6px,
      var(--bg-grain, rgba(31,29,24,0.018)) 6px 7px
    ),
    radial-gradient(1400px 800px at 100% -10%, color-mix(in srgb, var(--primary) 6%, transparent) 0%, transparent 60%),
    radial-gradient(1100px 600px at -10% 110%, color-mix(in srgb, var(--primary) 4%, transparent) 0%, transparent 55%),
    var(--bg);
}

#projector-app {
  height: 100vh;
  height: 100dvh;
  width: 100vw;
}

.projector-shell {
  position: relative;
  display: grid;
  grid-template-rows: auto 1fr auto;
  height: 100vh;
  height: 100dvh;
  padding: clamp(14px, 1.8vh, 24px) clamp(22px, 2.2vw, 38px) clamp(10px, 1.4vh, 18px);
  gap: clamp(10px, 1.4vh, 18px);
  box-sizing: border-box;
  isolation: isolate;
}

/* Registration crosses in the four corners — the kind printers use for
 * plate alignment. Pure decoration, hidden from a/y. */
.projector-shell::before,
.projector-shell::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
  background:
    linear-gradient(var(--rule), var(--rule)) center / 1px 100% no-repeat,
    linear-gradient(var(--rule), var(--rule)) center / 100% 1px no-repeat;
  opacity: 0.55;
}
.projector-shell::before { top: 6px; left: 6px; }
.projector-shell::after  { bottom: 6px; right: 6px; }

/* The two opposite corners get separate elements so we don't need extra DOM */
.projector-shell > .reg-tr,
.projector-shell > .reg-bl {
  position: absolute;
  width: 14px;
  height: 14px;
  pointer-events: none;
  background:
    linear-gradient(var(--rule), var(--rule)) center / 1px 100% no-repeat,
    linear-gradient(var(--rule), var(--rule)) center / 100% 1px no-repeat;
  opacity: 0.55;
}
.projector-shell > .reg-tr { top: 6px; right: 6px; }
.projector-shell > .reg-bl { bottom: 6px; left: 6px; }


/* ---------- Topbar (masthead) ---------- */

.projector-topbar {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: end;
  gap: clamp(16px, 2.4vw, 36px);
  padding-bottom: clamp(8px, 1.2vh, 14px);
  border-bottom: 1.5px solid var(--rule);
  position: relative;
}
/* under-rule (double rule like a masthead) */
.projector-topbar::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -4px;
  border-bottom: 1px solid var(--rule);
  opacity: 0.45;
}

.topbar-left  { display: grid; gap: 4px; justify-items: start; }
.topbar-mid   { display: grid; gap: 4px; justify-items: center; text-align: center; }
.topbar-right { display: grid; gap: 4px; justify-items: end; text-align: right; }

.brand {
  font-family: var(--font-sans);
  font-size: clamp(0.62rem, 0.82vw, 0.78rem);
  font-weight: 700;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--muted-2);
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand::before,
.brand::after {
  content: "";
  display: inline-block;
  width: clamp(18px, 2vw, 28px);
  height: 1px;
  background: currentColor;
  opacity: 0.55;
}

.topbar-title {
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.2vw, 2.1rem);
  font-weight: 600;
  letter-spacing: -0.014em;
  margin: 0;
  color: var(--text);
  line-height: 1.05;
  font-feature-settings: "ss01";
}

.folio {
  font-family: var(--font-mono);
  font-size: clamp(0.68rem, 0.95vw, 0.92rem);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.08em;
  color: var(--muted);
  text-transform: uppercase;
}
.folio b {
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.01em;
}

/* Override the global state-badge sizing for projector scale */
.projector-shell .state-badge {
  font-size: clamp(0.7rem, 0.9vw, 0.86rem);
  padding: 8px 14px;
  letter-spacing: 0.22em;
}


/* ---------- Main grid (one row, varies per state) ---------- */

.projector-grid {
  display: grid;
  gap: clamp(12px, 1.6vw, 24px);
  height: 100%;
  min-height: 0;
}

.projector-grid.lobby    { grid-template-columns: minmax(380px, 0.9fr) 1.1fr; }
.projector-grid.question { grid-template-columns: minmax(0, 1.55fr) minmax(0, 1fr); }
.projector-grid.between,
.projector-grid.finished { grid-template-columns: 1.05fr 1fr; }


/* ---------- Card primitive ---------- */

.projector-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 4px;
  box-shadow: var(--shadow);
  padding: clamp(16px, 2vw, 28px);
  display: grid;
  align-content: start;
  gap: clamp(8px, 1.2vh, 14px);
  min-height: 0;
  overflow: hidden;
  position: relative;
}

/* Eyebrows / section labels — small caps with rule */
.card-eyebrow,
.lobby-eyebrow {
  font-family: var(--font-sans);
  font-size: clamp(0.66rem, 0.86vw, 0.8rem);
  font-weight: 700;
  letter-spacing: 0.26em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0;
  display: flex;
  align-items: center;
  gap: 12px;
}
.card-eyebrow::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}


/* ============================================================
 *  STATE: lobby
 * ============================================================ */

.join-card {
  align-content: start;
  justify-items: stretch;
  gap: clamp(12px, 1.6vh, 18px);
  grid-template-rows: auto 1fr auto;
}

.lobby-headline {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 2.4vw, 2.4rem);
  font-weight: 600;
  font-style: italic;
  letter-spacing: -0.012em;
  line-height: 1.1;
  color: var(--text);
  margin: 0;
}
.lobby-sub {
  font-family: var(--font-sans);
  font-size: clamp(0.85rem, 1.05vw, 1rem);
  color: var(--muted);
  margin: 0;
  letter-spacing: 0.01em;
}

.qr-frame {
  position: relative;
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 0;
  align-self: center;
}
.qr-big {
  background: #ffffff;
  padding: clamp(12px, 1.4vw, 18px);
  border: 1px solid var(--border-strong);
  border-radius: 2px;
  width: clamp(280px, 28vw, 460px);
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  box-shadow:
    0 1px 0 rgba(20, 22, 28, 0.06),
    0 24px 56px -28px rgba(20, 22, 28, 0.32);
  position: relative;
}
.qr-big img {
  width: 100%;
  height: 100%;
  display: block;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}
/* corner braces */
.qr-frame::before,
.qr-frame::after {
  content: "";
  position: absolute;
  width: 22px;
  height: 22px;
  border: 1.5px solid var(--text);
  pointer-events: none;
}
.qr-frame::before { top: -10px; left: 50%; transform: translateX(calc(-50% - clamp(140px, 14vw, 230px))); border-right: 0; border-bottom: 0; }
.qr-frame::after  { bottom: -10px; left: 50%; transform: translateX(calc(-50% + clamp(140px, 14vw, 230px))); border-left: 0; border-top: 0; }

.lobby-url {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.25vw, 1.25rem);
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--text);
  background: var(--surface-2);
  padding: 10px 16px;
  border: 1px solid var(--border);
  border-radius: 2px;
  word-break: break-all;
  text-align: center;
  font-variant-numeric: tabular-nums;
}

/* lobby-status (right column) */
.lobby-status {
  align-content: stretch;
  grid-template-rows: auto auto 1fr auto;
  gap: clamp(10px, 1.4vh, 16px);
}

.participant-count {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: end;
  gap: clamp(12px, 1.6vw, 22px);
  padding: clamp(8px, 1.2vh, 14px) 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}
.participant-count b {
  font-family: var(--font-mono);
  font-size: clamp(4rem, 8.6vw, 8.4rem);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.05em;
  line-height: 0.92;
  color: var(--text);
  display: block;
  transform-origin: left bottom;
}
.participant-count.bump b {
  animation: count-bump 520ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
@keyframes count-bump {
  0%   { transform: scale(1);    color: var(--text); }
  35%  { transform: scale(1.08); color: var(--primary); }
  100% { transform: scale(1);    color: var(--text); }
}
.participant-count .label {
  display: grid;
  gap: 2px;
  padding-bottom: clamp(8px, 1.2vh, 14px);
}
.participant-count .label .word {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.1rem, 1.6vw, 1.7rem);
  color: var(--text-soft);
  line-height: 1.05;
}
.participant-count .label .meta {
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 0.9vw, 0.85rem);
  color: var(--muted);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
}

.constellation {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(clamp(11px, 1.1vw, 16px), 1fr));
  gap: clamp(5px, 0.6vw, 9px);
  align-content: start;
  min-height: 0;
  overflow: hidden;
  align-self: stretch;
  padding: 4px 0;
}
.constellation li {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 999px;
  background: var(--primary);
  opacity: 0.78;
  animation: dot-in 0.5s cubic-bezier(0.22, 0.61, 0.36, 1) both;
  animation-delay: var(--d, 0ms);
}
@keyframes dot-in {
  from { opacity: 0; transform: scale(0.4); }
  to   { opacity: 0.78; transform: scale(1); }
}

.lobby-rule {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 12px;
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 0.92vw, 0.86rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--muted);
}
.lobby-rule::before,
.lobby-rule::after {
  content: "";
  display: block;
  height: 1px;
  background: var(--border);
}

.lobby-meta-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(8px, 1vw, 14px);
}
.lobby-meta-grid .cell {
  display: grid;
  gap: 2px;
  padding: clamp(8px, 1vh, 12px) clamp(10px, 1vw, 14px);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 2px;
}
.lobby-meta-grid .cell .v {
  font-family: var(--font-mono);
  font-size: clamp(1.2rem, 1.7vw, 1.7rem);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.0;
}
.lobby-meta-grid .cell .k {
  font-family: var(--font-sans);
  font-size: clamp(0.62rem, 0.82vw, 0.74rem);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}


/* ============================================================
 *  STATE: question (open + closed/reveal)
 * ============================================================ */

.question-card {
  gap: clamp(10px, 1.4vh, 18px);
  grid-template-rows: auto 1fr auto;
}

.question-head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: start;
  gap: clamp(14px, 2vw, 28px);
}

.big-question {
  font-family: var(--font-display);
  /* Per spec: question prose >= ~3vw — go just above to be safe at 1366×768 */
  font-size: clamp(1.7rem, 3vw, 3rem);
  font-weight: 500;
  line-height: 1.18;
  letter-spacing: -0.014em;
  margin: 0;
  color: var(--text);
  font-feature-settings: "ss01";
  hyphens: auto;
}

/* Countdown ring — far more legible across a hall than a number alone.
 * Uses CSS conic-gradient for the arc; text sits in the middle. */
.countdown-ring {
  --size: clamp(90px, 8vw, 140px);
  --stroke: clamp(6px, 0.7vw, 10px);
  --pct: 100;        /* 0..100 */
  --hue: var(--primary);
  width: var(--size);
  height: var(--size);
  position: relative;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  background:
    conic-gradient(var(--hue) calc(var(--pct) * 1%), var(--border) 0);
  border-radius: 999px;
}
.countdown-ring::before {
  content: "";
  position: absolute;
  inset: var(--stroke);
  background: var(--surface);
  border-radius: 999px;
}
.countdown-ring .num {
  position: relative;
  font-family: var(--font-mono);
  font-size: clamp(1.7rem, 2.6vw, 2.6rem);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.04em;
  color: var(--text);
  line-height: 1;
}
.countdown-ring.urgent {
  --hue: var(--danger);
  animation: ring-urgent 0.9s ease-in-out infinite;
}
.countdown-ring.urgent .num {
  color: var(--danger);
}
@keyframes ring-urgent {
  0%, 100% { box-shadow: 0 0 0 0 color-mix(in srgb, var(--danger) 28%, transparent); }
  50%      { box-shadow: 0 0 0 8px color-mix(in srgb, var(--danger) 0%, transparent); }
}
.countdown-ring.spent { --hue: var(--muted); }

/* Options */
.big-options {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(7px, 0.95vh, 12px);
  align-content: start;
}
.big-options li {
  display: grid;
  grid-template-columns: clamp(46px, 4.4vw, 72px) 1fr clamp(110px, 14vw, 200px) clamp(74px, 9vw, 110px);
  gap: clamp(10px, 1.2vw, 18px);
  align-items: center;
  padding: clamp(10px, 1.4vh, 16px) clamp(14px, 1.6vw, 22px);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 2px;
  position: relative;
  transition:
    border-color 280ms ease,
    background 280ms ease,
    opacity 280ms ease,
    color 280ms ease;
}
/* Letterless variant — drop the leading key column, give the text more
 * room. Histogram bars + counts continue to anchor each row visually. */
.big-options.letterless li {
  grid-template-columns: 1fr clamp(110px, 14vw, 200px) clamp(74px, 9vw, 110px);
}
.big-options li::before {
  /* tiny "this is a row" tick on the left, like an editorial bullet */
  content: "";
  position: absolute;
  left: -1px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 38%;
  background: var(--border);
  transition: background 280ms ease, height 280ms ease;
}
.big-options.revealed li.correct {
  background: var(--correct-bg);
  border-color: var(--correct-border);
  border-width: 1.5px;
}
.big-options.revealed li.correct::before {
  background: var(--correct-border);
  height: 70%;
}
.big-options.revealed li.incorrect {
  opacity: 0.45;
}
.big-options.revealed li.incorrect .opt-text {
  text-decoration: line-through;
  text-decoration-color: var(--muted-2);
  text-decoration-thickness: 1px;
}

.opt-key {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(1.6rem, 2.4vw, 2.3rem);
  color: var(--muted);
  border-right: 1px solid var(--border);
  padding-right: clamp(10px, 1.1vw, 16px);
  letter-spacing: -0.01em;
  text-align: center;
  line-height: 1;
  font-feature-settings: "ss01";
}
.big-options li.correct .opt-key { color: var(--correct-border); border-right-color: var(--correct-border); }

.opt-text {
  font-family: var(--font-display);
  /* Per spec: option text >= ~1.5vw */
  font-size: clamp(1.05rem, 1.6vw, 1.6rem);
  line-height: 1.28;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
}

.opt-bar {
  display: block;
  height: clamp(10px, 1.5vh, 16px);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 0;
  overflow: hidden;
  position: relative;
}
/* tick marks at 25/50/75% — subtle, like graph paper */
.opt-bar::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(to right, transparent 0 calc(25% - 0.5px), var(--border) calc(25% - 0.5px) calc(25% + 0.5px), transparent calc(25% + 0.5px)),
    linear-gradient(to right, transparent 0 calc(50% - 0.5px), var(--border) calc(50% - 0.5px) calc(50% + 0.5px), transparent calc(50% + 0.5px)),
    linear-gradient(to right, transparent 0 calc(75% - 0.5px), var(--border) calc(75% - 0.5px) calc(75% + 0.5px), transparent calc(75% + 0.5px));
  opacity: 0.6;
  pointer-events: none;
}
.opt-bar-fill {
  display: block;
  height: 100%;
  background: var(--primary);
  width: 0%;
  transition: width 600ms cubic-bezier(0.22, 0.61, 0.36, 1), background 280ms ease;
  position: relative;
  z-index: 1;
}
.big-options li.correct .opt-bar-fill { background: var(--correct-border); }
.big-options.revealed li.incorrect .opt-bar-fill { background: var(--muted-2); }

.opt-count {
  font-family: var(--font-mono);
  font-size: clamp(1.15rem, 1.55vw, 1.55rem);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  text-align: right;
  color: var(--text);
  display: grid;
  gap: 0;
  line-height: 1.05;
}
.opt-count small {
  display: block;
  font-size: 0.55em;
  color: var(--muted);
  font-weight: 500;
  font-family: var(--font-sans);
  letter-spacing: 0.05em;
}

/* Pre-question state: when histogram is empty, hide bars to keep layout clean */
.big-options.pre-vote .opt-bar,
.big-options.pre-vote .opt-count {
  visibility: hidden;
}

.big-explanation {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1rem, 1.35vw, 1.3rem);
  line-height: 1.5;
  color: var(--text-soft);
  border-left: 3px solid var(--correct-border);
  padding: 6px 0 6px clamp(10px, 1.2vw, 18px);
  margin: 0;
  animation: fade-up 600ms cubic-bezier(0.22, 0.61, 0.36, 1) both;
}
@keyframes fade-up {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Submission progress strip at the bottom of the question card */
.submission-strip {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(10px, 1.2vw, 16px);
  padding-top: clamp(8px, 1vh, 12px);
  border-top: 1px solid var(--border);
}
.submission-strip .label {
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 0.9vw, 0.84rem);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--muted);
}
.submission-strip .track {
  height: clamp(6px, 0.8vh, 9px);
  background: var(--surface-2);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.submission-strip .track .fill {
  position: absolute;
  inset: 0 auto 0 0;
  width: var(--p, 0%);
  background: var(--primary);
  transition: width 600ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
.submission-strip .nums {
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.2vw, 1.2rem);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  letter-spacing: -0.01em;
}
.submission-strip .nums small {
  font-size: 0.66em;
  color: var(--muted);
  font-family: var(--font-sans);
  letter-spacing: 0.06em;
  margin-left: 4px;
}


/* ---------- Side card (response time + top-5) ---------- */

.side-card {
  gap: clamp(8px, 1.2vh, 14px);
  align-content: start;
  grid-template-rows: auto auto auto 1fr;
}
.side-meta {
  margin: 0;
  text-align: right;
  font-family: var(--font-mono);
  font-size: clamp(0.78rem, 0.95vw, 0.95rem);
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}


/* ============================================================
 *  Bar charts (response time, score histogram)
 * ============================================================ */

.bar-chart {
  --baseline: 1px;
  display: grid;
  grid-template-rows: 1fr auto auto;
  align-items: end;
  gap: 6px;
  padding: 4px 0 0;
  height: clamp(140px, 22vh, 240px);
  position: relative;
}
.bar-chart.small { height: clamp(110px, 16vh, 180px); }

.bar-chart .bars {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: clamp(4px, 0.6vw, 8px);
  align-items: end;
  position: relative;
  height: 100%;
  border-bottom: 1px solid var(--rule);
}
/* Faint horizontal gridlines at 25 / 50 / 75 / 100 % */
.bar-chart .bars::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    to top,
    transparent 0 calc(25% - 0.5px),
    var(--border) calc(25% - 0.5px) calc(25% + 0.5px),
    transparent calc(25% + 0.5px) 25%
  );
  opacity: 0.4;
  pointer-events: none;
}
.bar-chart .bars > * { z-index: 1; position: relative; }

.bar-cell {
  display: grid;
  grid-template-rows: 1fr;
  height: 100%;
  align-items: end;
  text-align: center;
  min-width: 0;
}
.bar-fill {
  display: block;
  background: var(--primary);
  height: var(--h, 2%);
  width: 100%;
  border-radius: 1px 1px 0 0;
  transition: height 600ms cubic-bezier(0.22, 0.61, 0.36, 1);
  align-self: end;
  position: relative;
}
.bar-fill::after {
  /* thin top-cap, like a printed almanac bar */
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: color-mix(in srgb, var(--text) 55%, var(--primary));
  opacity: 0.85;
}
.bar-fill[data-empty="true"] { background: transparent; border-top: 1px dashed var(--border); }
.bar-fill[data-empty="true"]::after { display: none; }

.bar-num {
  font-family: var(--font-mono);
  font-size: clamp(0.7rem, 0.9vw, 0.92rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  line-height: 1;
}
.bar-label {
  font-family: var(--font-mono);
  font-size: clamp(0.58rem, 0.74vw, 0.74rem);
  color: var(--muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  letter-spacing: 0;
  line-height: 1;
}
.bar-chart .nums,
.bar-chart .labels {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 1fr;
  gap: clamp(4px, 0.6vw, 8px);
  text-align: center;
}


/* ============================================================
 *  Score-distribution area chart (between + finished)
 * ============================================================ */

.area-chart {
  position: relative;
  width: 100%;
  height: clamp(180px, 28vh, 320px);
  display: grid;
  grid-template-rows: 1fr auto;
  gap: 4px;
}
.area-chart svg {
  width: 100%;
  height: 100%;
  display: block;
  overflow: visible;
}
.area-chart .grid-line {
  stroke: var(--border);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  opacity: 0.55;
  stroke-dasharray: 2 4;
}
.area-chart .axis {
  stroke: var(--rule);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}
.area-chart .area-fill {
  fill: var(--primary);
  fill-opacity: 0.14;
  transition: d 700ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
.area-chart .area-line {
  fill: none;
  stroke: var(--primary);
  stroke-width: 3;
  stroke-linejoin: round;
  stroke-linecap: round;
  transition: d 700ms cubic-bezier(0.22, 0.61, 0.36, 1);
  /* tell the renderer not to scale the stroke when SVG is stretched
     non-uniformly; the perceived width stays consistent */
  vector-effect: non-scaling-stroke;
}
.area-chart .data-point {
  fill: var(--surface);
  stroke: var(--primary);
  stroke-width: 2.5;
  vector-effect: non-scaling-stroke;
  transition: cx 700ms cubic-bezier(0.22, 0.61, 0.36, 1), cy 700ms cubic-bezier(0.22, 0.61, 0.36, 1);
}
.area-chart .data-label {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  fill: var(--text);
  text-anchor: middle;
  dominant-baseline: hanging;
}
.area-chart .x-tick-label {
  font-family: var(--font-mono);
  font-size: 16px;
  fill: var(--muted);
  text-anchor: middle;
}
.area-chart .y-tick-label {
  font-family: var(--font-mono);
  font-size: 14px;
  fill: var(--muted);
  text-anchor: end;
  dominant-baseline: middle;
}
.area-chart .axis-title {
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 600;
  fill: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.18em;
}
.area-chart .median-line {
  stroke: var(--text);
  stroke-width: 1.5;
  stroke-dasharray: 4 3;
  opacity: 0.6;
  vector-effect: non-scaling-stroke;
}
.area-chart .median-tag {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 600;
  fill: var(--text);
}

.chart-legend {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-sans);
  font-size: clamp(0.68rem, 0.86vw, 0.82rem);
  color: var(--muted);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  padding-top: 4px;
}
.chart-legend .stat {
  font-family: var(--font-mono);
  letter-spacing: -0.01em;
  text-transform: none;
  color: var(--text);
}
.chart-legend .stat b {
  font-weight: 600;
}


/* ============================================================
 *  Big leaderboard
 * ============================================================ */

.big-leaderboard {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: clamp(2px, 0.4vh, 6px);
  align-content: start;
}
.big-leaderboard li {
  display: grid;
  grid-template-columns: clamp(40px, 3.4vw, 64px) 1fr auto;
  align-items: baseline;
  gap: clamp(10px, 1vw, 18px);
  padding: clamp(7px, 0.95vh, 11px) clamp(10px, 1vw, 16px);
  border-bottom: 1px solid var(--border);
  border-left: 3px solid transparent;
  position: relative;
  animation: row-in 500ms cubic-bezier(0.22, 0.61, 0.36, 1) both;
  animation-delay: var(--d, 0ms);
}
.big-leaderboard li:last-child { border-bottom: 0; }
@keyframes row-in {
  from { opacity: 0; transform: translateX(-8px); }
  to   { opacity: 1; transform: translateX(0); }
}

.big-leaderboard .rank {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 1.4vw, 1.45rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
  letter-spacing: -0.02em;
  text-align: right;
}
.big-leaderboard .name {
  font-family: var(--font-display);
  /* Per spec: leaderboard names >= 1.4vw */
  font-size: clamp(1.05rem, 1.45vw, 1.55rem);
  font-weight: 500;
  color: var(--text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-feature-settings: "ss01";
}
.big-leaderboard .score {
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 1.5vw, 1.5rem);
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--text);
  letter-spacing: -0.02em;
}
.big-leaderboard li:nth-child(1) {
  background: color-mix(in srgb, var(--medal-gold) 10%, var(--surface));
  border-left-color: var(--medal-gold);
}
.big-leaderboard li:nth-child(2) {
  background: color-mix(in srgb, var(--medal-silver) 10%, var(--surface));
  border-left-color: var(--medal-silver);
}
.big-leaderboard li:nth-child(3) {
  background: color-mix(in srgb, var(--medal-bronze) 10%, var(--surface));
  border-left-color: var(--medal-bronze);
}
.big-leaderboard li:nth-child(1) .rank,
.big-leaderboard li:nth-child(1) .score { color: var(--medal-gold); }
.big-leaderboard li:nth-child(2) .rank,
.big-leaderboard li:nth-child(2) .score { color: var(--medal-silver); }
.big-leaderboard li:nth-child(3) .rank,
.big-leaderboard li:nth-child(3) .score { color: var(--medal-bronze); }


/* ============================================================
 *  Finished: hero banner
 * ============================================================ */

.finished-banner {
  display: grid;
  align-content: center;
  justify-items: center;
  gap: clamp(8px, 1.2vh, 14px);
  padding: clamp(16px, 2vh, 28px) clamp(20px, 2vw, 32px);
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--primary) 5%, transparent), transparent 60%),
    var(--surface);
  border-radius: 4px;
  position: relative;
}
.finished-banner .kicker {
  font-family: var(--font-sans);
  font-size: clamp(0.7rem, 0.92vw, 0.86rem);
  font-weight: 700;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--primary);
}
.finished-banner h2 {
  margin: 0;
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(2rem, 3.4vw, 3.4rem);
  font-weight: 600;
  letter-spacing: -0.018em;
  color: var(--text);
  line-height: 1.05;
  border: 0;
  padding: 0;
  text-transform: none;
  display: block;
}
.finished-banner .summary {
  font-family: var(--font-display);
  font-size: clamp(1rem, 1.3vw, 1.3rem);
  color: var(--text-soft);
  font-style: italic;
  margin: 0;
  text-align: center;
  line-height: 1.4;
}

.finished-grid {
  grid-template-rows: auto 1fr;
}


/* ============================================================
 *  Misc: error / empty states
 * ============================================================ */

.empty-state {
  display: grid;
  place-items: center;
  height: 100%;
  text-align: center;
  gap: 8px;
  color: var(--muted);
}
.empty-state .glyph {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(1.4rem, 2vw, 2rem);
  color: var(--muted-2);
}
.empty-state p {
  font-family: var(--font-sans);
  font-size: clamp(0.78rem, 1vw, 0.95rem);
  letter-spacing: 0.08em;
  margin: 0;
}

.fatal-card {
  align-content: center;
  justify-items: center;
  text-align: center;
  gap: 12px;
  height: 60vh;
  align-self: center;
  margin: auto;
}


/* ============================================================
 *  Footer (tickerline)
 * ============================================================ */

.projector-foot {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: clamp(10px, 1.4vw, 18px);
  padding-top: clamp(6px, 0.8vh, 10px);
  border-top: 1px solid var(--rule);
  font-family: var(--font-mono);
  font-size: clamp(0.66rem, 0.84vw, 0.78rem);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.projector-foot .left,
.projector-foot .right {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.projector-foot .dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: var(--correct-border);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--correct-border) 18%, transparent);
}
.projector-foot .dot.dim { background: var(--muted-2); box-shadow: none; }
.projector-foot .center {
  text-align: center;
  font-family: var(--font-sans);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
}


/* ============================================================
 *  Responsive — keep everything visible on 1366×768 and below
 * ============================================================ */

@media (max-width: 1280px) {
  .projector-grid.lobby    { grid-template-columns: 0.95fr 1fr; }
  .projector-grid.question { grid-template-columns: 1.5fr 1fr; }
}

@media (max-width: 1100px) {
  .projector-grid.question { grid-template-columns: 1fr; grid-template-rows: 1fr auto; }
  .side-card { display: none; }
  .topbar-mid { display: none; }
}

@media (max-aspect-ratio: 5/4) {
  /* Boxy aspect: stack lobby vertically */
  .projector-grid.lobby { grid-template-columns: 1fr; grid-template-rows: 1fr auto; }
  .qr-big { width: clamp(220px, 32vw, 380px); }
}


/* ============================================================
 *  Reduced motion — defer to global rule, but explicitly silence
 *  the ones we introduce here
 * ============================================================ */

@media (prefers-reduced-motion: reduce) {
  .countdown-ring.urgent { animation: none; }
  .participant-count.bump b { animation: none; }
  .constellation li { animation: none; opacity: 0.78; }
  .big-leaderboard li { animation: none; }
  .big-explanation { animation: none; }
}