/* التحديات — live challenge UI */
.chdemo {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.chdemo__banner {
  padding: 1rem 1.15rem;
  background: color-mix(in srgb, var(--warning) 10%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--warning) 28%, var(--border));
  border-radius: var(--radius-lg);
}

.chdemo__banner p {
  margin: .55rem 0 0;
  font-size: .875rem;
  color: var(--text-secondary);
  line-height: 1.55;
}

.chdemo__pill {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .75rem;
  font-weight: 800;
  color: #92400e;
  letter-spacing: .02em;
}

.chdemo-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xs);
  padding: 1.5rem 1.4rem 1.6rem;
}

.chdemo-wait-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--muted);
  display: inline-block;
  animation: chdemoPulse 1s ease infinite;
}

.chdemo-card__kicker {
  margin: 0 0 .35rem;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--muted);
}

.chdemo-card__title {
  margin: 0;
  font-size: clamp(1.35rem, 3vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.25;
}

.chdemo-card__desc {
  margin: .65rem 0 0;
  color: var(--text-secondary);
  line-height: 1.65;
  font-size: .95rem;
}

.chdemo-live {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  margin-top: .75rem;
  font-size: .75rem;
  font-weight: 800;
  color: var(--success);
}

.chdemo-live__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  animation: chdemoPulse .9s ease infinite;
}

.chdemo-actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: 1.35rem;
}

.chdemo-actions .btn {
  min-height: 46px;
  font-weight: 700;
}

.chdemo-join {
  display: flex;
  gap: .55rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.chdemo-join .input {
  flex: 1;
  min-width: 140px;
  text-align: center;
  letter-spacing: .18em;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 1.05rem;
}

.chdemo-rules {
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .55rem;
}

.chdemo-rules li {
  display: flex;
  align-items: flex-start;
  gap: .65rem;
  font-size: .875rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.chdemo-rules i {
  color: var(--primary);
  margin-top: .2rem;
  width: 1rem;
  text-align: center;
}

/* Hub tabs */
.chdemo-hub-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .25rem;
  margin: 1.15rem 0 .9rem;
  padding: .25rem;
  border-radius: 14px;
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.chdemo-hub-tab {
  border: 0;
  background: transparent;
  color: var(--text-secondary);
  font-weight: 700;
  font-size: .9rem;
  padding: .7rem .5rem;
  border-radius: 11px;
  cursor: pointer;
}

.chdemo-hub-tab.is-active {
  background: color-mix(in srgb, var(--primary) 14%, var(--surface));
  color: var(--text);
  font-weight: 800;
}

.chdemo-stats {
  display: grid;
  gap: .5rem;
  margin: .85rem 0 1rem;
}

.chdemo-stats__row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(0, 1fr));
  gap: .5rem;
}

.chdemo-stat {
  padding: .65rem .55rem;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid var(--border);
  text-align: center;
}

.chdemo-stat span {
  display: block;
  font-size: .72rem;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: .2rem;
}

.chdemo-stat strong {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text);
}

.chdemo-stat--win {
  background: color-mix(in srgb, #16a34a 18%, var(--surface));
  border-color: color-mix(in srgb, #16a34a 45%, var(--border));
}
.chdemo-stat--win span,
.chdemo-stat--win strong { color: #15803d; }
.chdemo-stat--lose {
  background: color-mix(in srgb, #dc2626 18%, var(--surface));
  border-color: color-mix(in srgb, #dc2626 45%, var(--border));
}
.chdemo-stat--lose span,
.chdemo-stat--lose strong { color: #b91c1c; }
.chdemo-stat--draw {
  background: color-mix(in srgb, #64748b 18%, var(--surface));
  border-color: color-mix(in srgb, #64748b 45%, var(--border));
}
.chdemo-stat--draw span,
.chdemo-stat--draw strong { color: #64748b; }

/* Match history */
.chdemo-matches {
  margin: .35rem 0 1.1rem;
}

.chdemo-matches__count {
  margin: 0 0 .85rem;
  font-size: .88rem;
  font-weight: 600;
  color: var(--muted);
}

.chdemo-filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin: 0 0 .55rem;
}

.chdemo-filter-chip {
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text-secondary);
  border-radius: 999px;
  padding: .35rem .75rem;
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
}

.chdemo-filter-chip.is-active {
  background: color-mix(in srgb, var(--primary) 14%, var(--surface));
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
  color: var(--primary);
}

.chdemo-matches__title {
  margin: 0 0 .75rem;
  font-size: 1.05rem;
  font-weight: 800;
}

.chdemo-matches__empty {
  margin: 0;
  padding: 1rem;
  border-radius: var(--radius);
  background: var(--surface-2);
  border: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: .9rem;
  text-align: center;
}

.chdemo-match {
  margin-bottom: .7rem;
  padding: .85rem .9rem;
  border-radius: var(--radius-lg);
  background: var(--surface-2);
  border: 1px solid var(--border);
}

.chdemo-match__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .45rem;
  margin-bottom: .45rem;
}

.chdemo-match__badge {
  display: inline-flex;
  padding: .2rem .55rem;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 800;
  background: color-mix(in srgb, var(--border) 70%, transparent);
  color: var(--text-secondary);
}

.chdemo-match__sub {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  margin-bottom: .7rem;
}

.chdemo-match__code {
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .03em;
  color: var(--text);
}

.chdemo-match__meta {
  font-size: .72rem;
  font-weight: 700;
  color: var(--muted);
}

.chdemo-match__date {
  font-size: .78rem;
  color: var(--muted);
  line-height: 1.35;
}

.chdemo-match--win .chdemo-match__badge {
  background: color-mix(in srgb, #16a34a 16%, transparent);
  color: #15803d;
}

.chdemo-match--lose .chdemo-match__badge {
  background: color-mix(in srgb, #dc2626 14%, transparent);
  color: #b91c1c;
}

.chdemo-match__vs {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: .55rem;
  align-items: stretch;
}

.chdemo-match__side {
  padding: .65rem .7rem;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
}

.chdemo-match__side--win {
  background: color-mix(in srgb, #16a34a 10%, var(--surface));
  border-color: color-mix(in srgb, #16a34a 28%, var(--border));
  color: #15803d;
}

.chdemo-match__side--lose {
  background: color-mix(in srgb, #dc2626 10%, var(--surface));
  border-color: color-mix(in srgb, #dc2626 28%, var(--border));
  color: #b91c1c;
}

.chdemo-match__side--draw {
  color: var(--text-secondary);
}

.chdemo-match__name-row {
  display: flex;
  align-items: center;
  gap: .4rem;
  margin-bottom: .35rem;
}

.chdemo-match__avatar {
  width: 1.55rem;
  height: 1.55rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  font-size: .72rem;
  font-weight: 800;
  background: color-mix(in srgb, currentColor 18%, transparent);
  color: inherit;
  flex-shrink: 0;
}

.chdemo-match__cup {
  font-size: 1rem;
  color: inherit;
  flex-shrink: 0;
  margin-inline-start: .35rem;
}

.chdemo-match__name {
  font-size: .8rem;
  font-weight: 700;
  color: inherit;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chdemo-match__score-row {
  display: flex;
  align-items: flex-end;
  gap: .3rem;
}

.chdemo-match__score {
  display: block;
  font-size: 1.35rem;
  font-weight: 900;
  line-height: 1.1;
  color: inherit;
}

.chdemo-match__pts {
  font-size: .72rem;
  font-weight: 700;
  opacity: .9;
  padding-bottom: .15rem;
}

.chdemo-match__cw {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .5rem;
  margin-top: .35rem;
  font-size: .72rem;
  font-weight: 800;
  color: inherit;
}

.chdemo-match__cw-stats {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  min-width: 0;
}

.chdemo-match__cw i {
  margin-inline-end: .15rem;
}

/* Lobby */
.chdemo-code {
  margin: 1.25rem 0;
  text-align: center;
  padding: 1.1rem;
  background: var(--surface-2);
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border);
}

.chdemo-code__label {
  margin: 0;
  font-size: .75rem;
  font-weight: 700;
  color: var(--muted);
}

.chdemo-code__value {
  margin: .35rem 0 0;
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: .28em;
  color: var(--primary);
}

.chdemo-players {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: .75rem;
  align-items: center;
  margin-top: 1rem;
}

.chdemo-player {
  text-align: center;
  padding: 1rem .75rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--surface-2);
}

.chdemo-player--ready {
  border-color: color-mix(in srgb, var(--success) 35%, var(--border));
  background: color-mix(in srgb, var(--success) 6%, var(--surface));
}

.chdemo-player--wait {
  opacity: .72;
}

.chdemo-player__avatar {
  width: 52px;
  height: 52px;
  margin: 0 auto .55rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 1.25rem;
}

.chdemo-player__name {
  margin: 0;
  font-weight: 800;
  font-size: .95rem;
}

.chdemo-player__meta {
  margin: .25rem 0 0;
  font-size: .75rem;
  color: var(--muted);
}

.chdemo-lobby-count {
  margin: 1rem 0;
  text-align: center;
}

.chdemo-lobby-count__label {
  margin: 0;
  font-size: .75rem;
  font-weight: 700;
  color: var(--muted);
}

.chdemo-lobby-count__value {
  margin: .35rem 0 0;
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
}

.chdemo-lobby-list {
  list-style: none;
  margin: 0 0 1rem;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.chdemo-lobby-list__item {
  display: flex;
  align-items: center;
  gap: .55rem;
  padding: .65rem .85rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface-2);
}

.chdemo-lobby-list__item--you {
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
}

.chdemo-lobby-list__dot {
  width: .55rem;
  height: .55rem;
  border-radius: 50%;
  background: var(--muted);
  flex-shrink: 0;
}

.chdemo-lobby-list__dot.is-online {
  background: var(--success);
}

.chdemo-lobby-list__name {
  flex: 1;
  font-weight: 700;
  font-size: .9rem;
}

.chdemo-lobby-list__tag {
  font-size: .72rem;
  font-weight: 700;
  color: var(--muted);
}

.chdemo-lobby-list__solo {
  text-align: center;
  color: var(--muted);
  margin: 0 0 1rem;
}

.chdemo-score--extras {
  margin-top: .5rem;
  flex-wrap: wrap;
  justify-content: center;
}

.chdemo-score__chip--extra {
  font-size: .78rem;
  opacity: .92;
}

.chdemo-vs {
  font-weight: 800;
  color: var(--muted);
  font-size: .8rem;
}

.chdemo-status {
  margin: 1.1rem 0 0;
  text-align: center;
  font-size: .9rem;
  color: var(--text-secondary);
  font-weight: 600;
}

/* Play */
.chdemo-play__top {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: .75rem;
  margin-bottom: 1rem;
}

.chdemo-leave-btn {
  appearance: none;
  border: 1px solid rgba(15, 23, 42, .12);
  background: #fff;
  color: #334155;
  border-radius: 999px;
  padding: .4rem .9rem;
  font-size: .85rem;
  font-weight: 700;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}

.chdemo-leave-btn:hover {
  background: #f8fafc;
}

.chdemo-score {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
}

.chdemo-score__chip {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .35rem .7rem;
  border-radius: 999px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  font-size: .8rem;
  font-weight: 800;
}

.chdemo-score__chip--you {
  border-color: color-mix(in srgb, var(--primary) 30%, var(--border));
  color: var(--primary);
}

.chdemo-score__cw {
  display: inline-flex;
  gap: .35rem;
  margin-inline-start: .35rem;
  font-size: .72rem;
  font-weight: 800;
}

.chdemo-score__ok { color: #15803d; }
.chdemo-score__bad { color: #b91c1c; }
.chdemo-score__skip { color: #64748b; }

.chdemo-stat-pop {
  display: inline-flex;
  align-items: center;
  gap: .2rem;
  animation: chdemoStatPop .35s ease-out;
  transform-origin: center;
}

@keyframes chdemoStatPop {
  0% { transform: scale(0.72); opacity: .55; }
  55% { transform: scale(1.18); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

.chdemo-score__chip--rival {
  border-color: color-mix(in srgb, var(--danger) 25%, var(--border));
  color: #b91c1c;
}

.chdemo-qmeta {
  display: flex;
  align-items: center;
  gap: .55rem;
  font-size: .8rem;
  font-weight: 700;
  color: var(--muted);
}

.chdemo-timer {
  min-width: 2.6rem;
  text-align: center;
  padding: .3rem .55rem;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-variant-numeric: tabular-nums;
}

.chdemo-timer--warn {
  background: var(--danger);
  animation: chdemoPulse .7s ease infinite;
}

@keyframes chdemoPulse {
  50% { transform: scale(1.06); }
}

.chdemo-progress {
  height: 4px;
  background: var(--border-light);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 1.15rem;
}

.chdemo-progress__bar {
  height: 100%;
  background: var(--primary);
  transition: width .35s ease;
}

.chdemo-lock {
  margin: 0 0 1rem;
  padding: .75rem 1rem;
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--warning) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--warning) 30%, var(--border));
  color: #92400e;
  font-size: .875rem;
  font-weight: 700;
  text-align: center;
}

.chdemo-cd {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1.75rem 1rem 1.25rem;
  text-align: center;
}

.chdemo-cd__label {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text);
}

.chdemo-cd__sub {
  margin: .4rem 0 0;
  font-size: .9rem;
  color: var(--text-secondary);
}

.chdemo-cd__ring-wrap {
  position: relative;
  width: 168px;
  height: 168px;
  margin: 1.5rem 0 1rem;
}

.chdemo-cd__svg {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}

.chdemo-cd__track,
.chdemo-cd__ring {
  fill: none;
  stroke-width: 8;
}

.chdemo-cd__track {
  stroke: color-mix(in srgb, var(--border) 80%, transparent);
}

.chdemo-cd__ring {
  stroke: #d97706;
  stroke-linecap: round;
  transition: stroke-dashoffset .25s linear;
}

.chdemo-cd__num {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.chdemo-cd__num--pop {
  animation: chdemoCdPop .32s ease-out;
}

@keyframes chdemoCdPop {
  from { transform: scale(.82); opacity: .7; }
  to { transform: scale(1); opacity: 1; }
}

.chdemo-cd__unit {
  margin: 0;
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .08em;
  color: #d97706;
}

.chdemo-q__image {
  display: block;
  width: 100%;
  max-height: 220px;
  object-fit: contain;
  border-radius: 14px;
  margin: 0 0 14px;
  background: rgba(15, 23, 42, 0.04);
}

.chdemo-q {
  margin: 0 0 1.15rem;
  font-size: clamp(1.1rem, 2.6vw, 1.35rem);
  font-weight: 800;
  line-height: 1.45;
}

.chdemo-opts {
  display: grid;
  gap: .65rem;
}

.chdemo-opt {
  display: flex;
  align-items: center;
  gap: .75rem;
  width: 100%;
  padding: 1rem 1.05rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  text-align: start;
  cursor: pointer;
  font: inherit;
  font-weight: 700;
  color: var(--text);
  transition: border-color .2s ease, background .2s ease, transform .15s ease;
}

.chdemo-opt:hover:not(:disabled) {
  border-color: color-mix(in srgb, var(--primary) 35%, var(--border));
  background: var(--primary-light);
}

.chdemo-opt:disabled {
  cursor: default;
  opacity: .85;
}

.chdemo-opt--locked {
  pointer-events: none;
  opacity: .55;
}

.chdemo-opt--correct {
  border-color: var(--success);
  background: color-mix(in srgb, var(--success) 10%, #fff);
  color: #047857;
}

.chdemo-opt--wrong {
  border-color: var(--danger);
  background: color-mix(in srgb, var(--danger) 8%, #fff);
  color: #b91c1c;
}

.chdemo-opt__key {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--surface-2);
  font-size: .75rem;
  font-weight: 800;
  color: var(--muted);
  flex-shrink: 0;
}

.chdemo-opt--correct .chdemo-opt__key,
.chdemo-opt--wrong .chdemo-opt__key {
  background: transparent;
  color: inherit;
}

.chdemo-feed {
  margin-top: 1rem;
  min-height: 1.5rem;
  text-align: center;
  font-size: .875rem;
  font-weight: 700;
  color: var(--text-secondary);
}

.chdemo-feed--win { color: var(--success); }
.chdemo-feed--lose { color: var(--danger); }
.chdemo-feed--info { color: var(--muted); }

.chdemo-gap {
  margin-top: 1rem;
  text-align: center;
  font-size: .9rem;
  font-weight: 700;
  color: var(--primary);
}

/* Results */
.chdemo-result-hero {
  text-align: center;
  padding: .5rem 0 1rem;
}

.chdemo-result-hero__badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .4rem .85rem;
  border-radius: 999px;
  font-size: .8rem;
  font-weight: 800;
  margin-bottom: .65rem;
}

.chdemo-result-hero__badge--win {
  background: color-mix(in srgb, var(--success) 12%, #fff);
  color: #047857;
}

.chdemo-result-hero__badge--lose {
  background: color-mix(in srgb, var(--danger) 10%, #fff);
  color: #b91c1c;
}

.chdemo-result-hero__badge--draw {
  background: var(--surface-2);
  color: var(--muted);
}

.chdemo-result-hero h2 {
  margin: 0;
  font-size: 1.55rem;
  font-weight: 800;
}

.chdemo-result-score {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: .75rem;
  align-items: center;
  margin: 1.25rem 0;
}

.chdemo-result-side {
  text-align: center;
  padding: 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: var(--surface-2);
}

.chdemo-result-side strong {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
  margin-top: .25rem;
}

.chdemo-board {
  margin-top: 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.chdemo-board__row {
  display: grid;
  grid-template-columns: 2.2rem 1fr auto;
  gap: .65rem;
  align-items: center;
  padding: .85rem 1rem;
  border-top: 1px solid var(--border-light);
  font-size: .9rem;
}

.chdemo-board--table .chdemo-board__row {
  grid-template-columns: 1.8rem minmax(0, 1.4fr) 2.2rem 2.2rem 2.8rem 2.8rem 2.6rem;
  gap: .35rem;
  padding: .7rem .65rem;
  font-size: .82rem;
}

.chdemo-board__row:first-child,
.chdemo-board__head {
  border-top: 0;
  background: var(--surface-2);
  font-weight: 800;
  font-size: .72rem;
  color: var(--muted);
  letter-spacing: .02em;
}

.chdemo-board__rank {
  font-weight: 800;
  color: var(--primary);
  text-align: center;
}

.chdemo-board__name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 700;
}

.chdemo-board__num {
  text-align: center;
  color: var(--text-secondary);
  font-weight: 600;
}

.chdemo-board__pts {
  text-align: center;
  color: var(--primary);
  font-weight: 800;
}

.chdemo-board__top {
  background: color-mix(in srgb, var(--primary) 5%, #fff);
}

.chdemo-board__you {
  background: color-mix(in srgb, var(--primary) 6%, #fff);
}

.chdemo-board__empty {
  color: var(--muted);
}

.chdemo-vs--badge {
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 999px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: .72rem;
  font-weight: 900;
}

.chdemo-result-side--win {
  background: color-mix(in srgb, #16a34a 12%, var(--surface));
  border: 1px solid color-mix(in srgb, #16a34a 35%, var(--border));
  border-radius: var(--radius-lg);
  padding: .85rem .75rem;
  position: relative;
}

.chdemo-result-side--win strong,
.chdemo-result-side--win span {
  color: #15803d;
}

.chdemo-result-side--lose {
  background: color-mix(in srgb, #dc2626 10%, var(--surface));
  border: 1px solid color-mix(in srgb, #dc2626 30%, var(--border));
  border-radius: var(--radius-lg);
  padding: .85rem .75rem;
}

.chdemo-result-side--lose strong,
.chdemo-result-side--lose span {
  color: #b91c1c;
}

.chdemo-result-side__cup {
  position: absolute;
  top: .45rem;
  inset-inline-start: .45rem;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 999px;
  background: #fff;
  color: #16a34a;
  display: grid;
  place-items: center;
  font-size: .7rem;
  box-shadow: 0 1px 3px rgba(22, 163, 74, .18);
}

@media (max-width: 520px) {
  .chdemo-card {
    padding: 1.2rem 1rem 1.35rem;
  }

  .chdemo-code__value {
    letter-spacing: .18em;
    font-size: 1.65rem;
  }

  .chdemo-players {
    grid-template-columns: 1fr;
  }

  .chdemo-vs {
    display: none;
  }
}

.chdemo-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .75rem;
  margin-bottom: .5rem;
}

.chdemo-board-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  margin: 1.25rem 0 .65rem;
}

.chdemo-my-rank {
  display: flex;
  flex-direction: column;
  gap: .2rem;
  padding: .85rem 1rem;
  margin: .85rem 0;
  border-radius: var(--radius-lg);
  background: color-mix(in srgb, var(--primary) 10%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--primary) 22%, var(--border));
}

.chdemo-my-rank--empty {
  color: var(--text-secondary);
  font-size: .9rem;
  padding: .75rem 0;
  margin: 0;
  background: transparent;
  border: 0;
}

.chdemo-my-rank__label {
  font-size: .75rem;
  color: var(--muted);
  font-weight: 700;
}

.chdemo-my-rank__value {
  font-size: 1.6rem;
  color: var(--primary);
  line-height: 1.1;
}

.chdemo-my-rank__meta {
  font-size: .82rem;
  color: var(--text-secondary);
}

.chdemo-rules-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}

@media (min-width: 720px) {
  .chdemo-rules-modal {
    align-items: center;
    padding: 1rem;
  }
}

.chdemo-rules-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, .55);
}

.chdemo-rules-modal__card {
  position: relative;
  z-index: 1;
  width: min(460px, 100%);
  max-height: min(88vh, 720px);
  overflow: auto;
  background: #fff;
  border-radius: 22px 22px 0 0;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  padding: .85rem 1.2rem 1.15rem;
  color: #0f172a;
}

@media (min-width: 720px) {
  .chdemo-rules-modal__card {
    border-radius: var(--radius-xl);
  }
}

.chdemo-rules-modal__handle {
  width: 42px;
  height: 4px;
  margin: 0 auto .85rem;
  border-radius: 4px;
  background: #e2e8f0;
}

.chdemo-rules-modal__head {
  display: flex;
  align-items: center;
  gap: .65rem;
  margin-bottom: .55rem;
}

.chdemo-rules-modal__bolt {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: color-mix(in srgb, var(--primary) 14%, #fff);
  color: var(--primary);
}

.chdemo-rules-modal__card h3 {
  margin: 0;
  flex: 1;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--primary);
}

.chdemo-rules-modal__close {
  border: 0;
  background: transparent;
  color: #64748b;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  cursor: pointer;
}

.chdemo-rules-modal__lead {
  margin: 0 0 1rem;
  color: #64748b;
  line-height: 1.55;
  font-size: .92rem;
}

.chdemo-rules-modal__section {
  margin: 0 0 .65rem;
  font-size: .95rem;
  font-weight: 800;
  color: #0f172a;
}

.chdemo-rules-modal__steps,
.chdemo-rules-modal__scores {
  margin: 0 0 1rem;
  padding: .7rem .75rem;
  border-radius: 16px;
  background: #f8fafc;
  border: 1px solid #e8edf2;
}

.chdemo-rules-modal__step {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: .65rem;
  align-items: start;
  padding: .35rem 0 .55rem;
}

.chdemo-rules-modal__num {
  width: 28px;
  height: 28px;
  border-radius: 9px;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: #fff;
  font-weight: 800;
  font-size: .85rem;
}

.chdemo-rules-modal__step-text {
  font-size: .9rem;
  line-height: 1.45;
  color: #0f172a;
  padding-top: .2rem;
}

.chdemo-rules-modal__step > i {
  color: color-mix(in srgb, var(--primary) 80%, #64748b);
  margin-top: .35rem;
}

.chdemo-rules-modal__score {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: .65rem;
  align-items: center;
  padding: .45rem 0;
  border-bottom: 1px solid rgba(15, 23, 42, .04);
}

.chdemo-rules-modal__score:last-child {
  border-bottom: 0;
}

.chdemo-rules-modal__score-icon {
  width: 34px;
  height: 34px;
  border-radius: 999px;
  display: grid;
  place-items: center;
}

.chdemo-rules-modal__score-icon--ok { background: #dcfce7; color: #15803d; }
.chdemo-rules-modal__score-icon--speed { background: color-mix(in srgb, var(--primary) 14%, #fff); color: var(--primary); }
.chdemo-rules-modal__score-icon--fire { background: #ffedd5; color: #ea580c; }
.chdemo-rules-modal__score-icon--bad { background: #fee2e2; color: #b91c1c; }
.chdemo-rules-modal__score-icon--skip { background: #f1f5f9; color: #64748b; }
.chdemo-rules-modal__score-icon--cup { background: #fef3c7; color: #ca8a04; }

.chdemo-rules-modal__score-text {
  font-size: .88rem;
  line-height: 1.4;
  color: #0f172a;
}

.chdemo-rules-modal__badge {
  font-size: .75rem;
  font-weight: 800;
  padding: .25rem .5rem;
  border-radius: 8px;
}

.chdemo-rules-modal__badge--ok { background: #dcfce7; color: #15803d; }
.chdemo-rules-modal__badge--speed { background: color-mix(in srgb, var(--primary) 14%, #fff); color: var(--primary); }
.chdemo-rules-modal__badge--fire { background: #ffedd5; color: #ea580c; }
.chdemo-rules-modal__badge--bad { background: #fee2e2; color: #b91c1c; }
.chdemo-rules-modal__badge--skip { background: #f1f5f9; color: #64748b; }
.chdemo-rules-modal__badge--cup { background: #fef3c7; color: #ca8a04; }

.account-tile--accent {
  border-color: color-mix(in srgb, var(--warning) 35%, var(--border));
  background: color-mix(in srgb, var(--warning) 6%, var(--surface));
}

/* —— Immersive play (match student app dark UI) —— */
.chdemo.chdemo--immersive {
  --ch-cyan: #22d3ee;
  --ch-amber: #fbbf24;
  --ch-green: #4ade80;
  --ch-red: #f87171;
  --ch-slate: #94a3b8;
  --ch-glass: rgba(255, 255, 255, 0.1);
  --ch-glass-border: rgba(255, 255, 255, 0.15);
  --ch-soft: rgba(255, 255, 255, 0.08);
  position: relative;
  z-index: 0;
  max-width: 480px;
  min-height: min(100dvh, 920px);
  padding: 0.75rem 0 1.5rem;
  color: #fff;
}

.chdemo.chdemo--immersive::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, #0b1020 0%, #1e1b4b 48%, #312e81 100%);
}

.chdemo--immersive .chdemo-card,
.chdemo--immersive .chdemo-card--play {
  background: transparent;
  border: none;
  box-shadow: none;
  padding: 0.35rem 0.85rem 1.25rem;
  color: #fff;
}

.chdemo--immersive .chdemo-card__kicker,
.chdemo--immersive .chdemo-card__desc,
.chdemo--immersive .chdemo-status {
  color: rgba(255, 255, 255, 0.7);
}

.chdemo--immersive .chdemo-card__title,
.chdemo--immersive .chdemo-card__kicker + .chdemo-card__title {
  color: #fff;
}

.chdemo-play__leave-row {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.85rem;
}

.chdemo-play__title {
  justify-self: center;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: #fff;
}

.chdemo-play__info {
  justify-self: end;
  appearance: none;
  border: none;
  background: transparent;
  color: rgba(255, 255, 255, 0.72);
  font-size: 1.15rem;
  padding: 0.35rem;
  cursor: pointer;
  line-height: 1;
}

.chdemo-play__info:hover {
  color: #fff;
}

.chdemo--immersive .chdemo-leave-btn {
  justify-self: start;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.88);
}

.chdemo--immersive .chdemo-leave-btn:hover {
  background: rgba(255, 255, 255, 0.14);
}

.chdemo-vs-board {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-top: 0.15rem;
}

.chdemo-vs-card {
  flex: 1;
  min-width: 0;
  padding: 10px;
  border-radius: 14px;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  border: 1px solid transparent;
}

.chdemo-vs-card--you {
  background: rgba(34, 211, 238, 0.12);
  border-color: rgba(34, 211, 238, 0.28);
  --vs-accent: #22d3ee;
}

.chdemo-vs-card--rival {
  background: rgba(251, 191, 36, 0.12);
  border-color: rgba(251, 191, 36, 0.28);
  --vs-accent: #fbbf24;
}

.chdemo-vs-card__head {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
}

.chdemo-vs-card__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  font-size: 0.72rem;
  font-weight: 800;
  color: var(--vs-accent);
  background: color-mix(in srgb, var(--vs-accent) 22%, transparent);
}

.chdemo-vs-card__name {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--vs-accent);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chdemo-vs-card__score {
  font-size: 1.35rem;
  font-weight: 800;
  line-height: 1.15;
  color: var(--vs-accent);
  font-variant-numeric: tabular-nums;
}

.chdemo-vs-card__score small {
  font-size: 0.7rem;
  font-weight: 700;
  opacity: 0.85;
}

.chdemo-vs-card__cw {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.chdemo-vs-card__cw .chdemo-score__cw {
  margin: 0;
  gap: 0.5rem;
  font-size: 0.72rem;
}

.chdemo--immersive .chdemo-score__ok { color: #4ade80; }
.chdemo--immersive .chdemo-score__bad { color: #f87171; }
.chdemo--immersive .chdemo-score__skip { color: #94a3b8; }

.chdemo-vs-card__streak {
  font-size: 0.7rem;
  font-weight: 700;
  color: #fbbf24;
}

.chdemo-vs-badge {
  align-self: center;
  flex-shrink: 0;
  width: 36px;
  height: 36px;
  margin: 0 8px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.68rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: rgba(255, 255, 255, 0.7);
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
}

.chdemo--immersive .chdemo-score--extras {
  margin-top: 0.65rem;
}

.chdemo--immersive .chdemo-score__chip--extra {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.7);
  font-weight: 600;
}

.chdemo--immersive .chdemo-progress--phase {
  height: 8px;
  margin: 0.9rem 0 0.55rem;
  background: rgba(255, 255, 255, 0.14);
  border-radius: 8px;
}

.chdemo--immersive .chdemo-progress--phase .chdemo-progress__bar {
  border-radius: 8px;
  transition: width 0.25s linear;
}

.chdemo--immersive .chdemo-progress--open .chdemo-progress__bar {
  background: #22d3ee;
}

.chdemo--immersive .chdemo-progress--wait .chdemo-progress__bar {
  background: #fbbf24;
}

.chdemo-play__status {
  margin: 0 0 1rem;
  text-align: center;
  font-size: 0.9rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
}

.chdemo-qcard {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.chdemo--immersive .chdemo-qmeta {
  margin-bottom: 0.65rem;
  color: #22d3ee;
}

.chdemo--immersive .chdemo-qmeta__label {
  font-size: 0.9rem;
  font-weight: 800;
  color: #22d3ee;
}

.chdemo--immersive .chdemo-timer[hidden] {
  display: none !important;
}

.chdemo--immersive .chdemo-q {
  margin: 0 0 1rem;
  color: #fff;
  font-size: clamp(1.05rem, 3.4vw, 1.2rem);
  font-weight: 700;
  line-height: 1.45;
  text-align: start;
}

.chdemo--immersive .chdemo-q__image {
  background: rgba(0, 0, 0, 0.2);
  max-height: 180px;
  border-radius: 12px;
}

.chdemo--immersive .chdemo-opts {
  gap: 0.65rem;
}

.chdemo--immersive .chdemo-opt {
  padding: 14px;
  border-radius: 14px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  box-shadow: none;
}

.chdemo--immersive .chdemo-opt:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.1);
  transform: none;
}

.chdemo--immersive .chdemo-opt--selected {
  background: rgba(34, 211, 238, 0.25);
  border-color: rgba(34, 211, 238, 0.35);
}

.chdemo--immersive .chdemo-opt--correct {
  background: rgba(22, 101, 52, 0.55);
  border-color: rgba(74, 222, 128, 0.35);
  color: #fff;
}

.chdemo--immersive .chdemo-opt--wrong {
  background: rgba(153, 27, 27, 0.55);
  border-color: rgba(248, 113, 113, 0.35);
  color: #fff;
}

.chdemo--immersive .chdemo-opt__key {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-size: 0.8rem;
}

.chdemo--immersive .chdemo-opt--correct .chdemo-opt__key,
.chdemo--immersive .chdemo-opt--wrong .chdemo-opt__key,
.chdemo--immersive .chdemo-opt--selected .chdemo-opt__key {
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.chdemo--immersive .chdemo-feed {
  color: rgba(255, 255, 255, 0.75);
}

.chdemo--immersive .chdemo-feed--win { color: #4ade80; }
.chdemo--immersive .chdemo-feed--lose { color: #f87171; }

.chdemo--immersive .chdemo-cd__label {
  color: #fff;
  font-size: 1.35rem;
}

.chdemo--immersive .chdemo-cd__sub {
  color: rgba(255, 255, 255, 0.54);
}

.chdemo--immersive .chdemo-cd__track {
  stroke: rgba(255, 255, 255, 0.1);
}

.chdemo--immersive .chdemo-cd__ring {
  stroke: #fbbf24;
}

.chdemo--immersive .chdemo-cd__num {
  color: #fff;
}

.chdemo--immersive .chdemo-cd__unit {
  color: #fbbf24;
}

.chdemo--immersive .chdemo-player {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.chdemo--immersive .chdemo-player__name {
  color: #fff;
}

.chdemo--immersive .chdemo-player__meta {
  color: rgba(255, 255, 255, 0.65);
}

.chdemo--immersive .btn--outline {
  border-color: rgba(255, 255, 255, 0.22);
  color: #fff;
  background: transparent;
}

.chdemo--immersive .btn--outline:hover {
  background: rgba(255, 255, 255, 0.08);
}

.chdemo--immersive .btn--primary {
  background: #22d3ee;
  border-color: #22d3ee;
  color: #0b1020;
}

.chdemo--immersive .chdemo-vs--badge {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: rgba(255, 255, 255, 0.7);
}

/* Results screen (app parity) */
.chdemo-card--results {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
}

.chdemo-results-glass {
  padding: 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.15);
}

.chdemo-results__hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 0.55rem;
  margin-bottom: 1rem;
}

.chdemo-results__icon {
  width: 3.5rem;
  height: 3.5rem;
  display: grid;
  place-items: center;
  font-size: 2.1rem;
  line-height: 1;
}

.chdemo-results__hero--win .chdemo-results__icon { color: #fbbf24; }
.chdemo-results__hero--lose .chdemo-results__icon { color: #f87171; }
.chdemo-results__hero--draw .chdemo-results__icon { color: #94a3b8; }

.chdemo-results__title {
  margin: 0;
  font-size: 1.45rem;
  font-weight: 800;
  color: #fff;
}

.chdemo-results__vs {
  display: flex;
  align-items: stretch;
  gap: 0;
  margin-bottom: 1rem;
}

.chdemo-results__vs--solo {
  justify-content: center;
}

.chdemo-results__vs--solo .chdemo-result-card {
  max-width: 220px;
  width: 100%;
}

.chdemo-result-card {
  --rc-accent: #94a3b8;
  flex: 1;
  min-width: 0;
  padding: 12px;
  border-radius: 14px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.35rem;
  background: color-mix(in srgb, var(--rc-accent) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--rc-accent) 35%, transparent);
  color: var(--rc-accent);
}

.chdemo-result-card--win { --rc-accent: #34d399; }
.chdemo-result-card--lose { --rc-accent: #f87171; }
.chdemo-result-card--draw { --rc-accent: #94a3b8; }

.chdemo-result-card__avatar-wrap {
  position: relative;
  width: 36px;
  height: 36px;
}

.chdemo-result-card__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--rc-accent);
  background: color-mix(in srgb, var(--rc-accent) 22%, transparent);
}

.chdemo-result-card__cup {
  position: absolute;
  top: -4px;
  inset-inline-end: -6px;
  width: 1.15rem;
  height: 1.15rem;
  border-radius: 50%;
  background: #fff;
  color: #34d399;
  display: grid;
  place-items: center;
  font-size: 0.55rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
}

.chdemo-result-card__name {
  font-size: 0.75rem;
  font-weight: 700;
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.chdemo-result-card__score {
  font-size: 1.55rem;
  font-weight: 800;
  line-height: 1.15;
  font-variant-numeric: tabular-nums;
}

.chdemo-result-card__score small {
  font-size: 0.7rem;
  font-weight: 700;
  opacity: 0.9;
}

.chdemo-result-card__cw {
  display: inline-flex;
  gap: 0.55rem;
  font-size: 0.72rem;
  font-weight: 700;
}

.chdemo-result-card__cw .chdemo-score__ok,
.chdemo-result-card__cw .chdemo-score__bad {
  color: var(--rc-accent);
}

.chdemo-actions--results {
  margin-top: 0.25rem;
}

.chdemo-actions--results .btn--block {
  width: 100%;
  min-height: 48px;
  border-radius: 14px;
  font-weight: 800;
}

.chdemo-results__board-title {
  margin: 0 0 0.65rem;
  font-size: 1.1rem;
  font-weight: 800;
  color: #fff;
}

.chdemo--immersive .chdemo-board {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
}

.chdemo--immersive .chdemo-board__row {
  border-color: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.9);
}

.chdemo--immersive .chdemo-board__head {
  background: transparent;
  color: rgba(255, 255, 255, 0.54);
  font-weight: 600;
}

.chdemo--immersive .chdemo-board__rank {
  color: rgba(255, 255, 255, 0.54);
  font-weight: 700;
}

.chdemo--immersive .chdemo-board__rank--top1,
.chdemo--immersive .chdemo-board__rank--top2,
.chdemo--immersive .chdemo-board__rank--top3 {
  color: #fbbf24;
}

.chdemo--immersive .chdemo-board__name {
  color: #fff;
}

.chdemo--immersive .chdemo-board__num {
  color: rgba(255, 255, 255, 0.88);
}

.chdemo--immersive .chdemo-board__pts {
  color: #22d3ee;
}

.chdemo--immersive .chdemo-board__top {
  background: rgba(255, 255, 255, 0.05);
}

.chdemo--immersive .chdemo-board__you {
  background: rgba(34, 211, 238, 0.1);
}

.chdemo--immersive .chdemo-board__empty {
  color: rgba(255, 255, 255, 0.55);
}

.chdemo--immersive .chdemo-code {
  background: rgba(255, 255, 255, 0.08);
  border: 1px dashed rgba(255, 255, 255, 0.2);
}

.chdemo--immersive .chdemo-code__label,
.chdemo--immersive .chdemo-lobby-count__label {
  color: rgba(255, 255, 255, 0.65);
}

.chdemo--immersive .chdemo-code__value,
.chdemo--immersive .chdemo-lobby-count__value {
  color: #22d3ee;
}

.chdemo--immersive .chdemo-lobby-list__item {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.chdemo--immersive .chdemo-lobby-list__item--you {
  border-color: rgba(34, 211, 238, 0.4);
  background: rgba(34, 211, 238, 0.1);
}

.chdemo--immersive .chdemo-lobby-list__tag,
.chdemo--immersive .chdemo-lobby-list__solo {
  color: rgba(255, 255, 255, 0.6);
}

/* Hub (app parity) */
.chdemo-play__spacer {
  display: block;
  width: 1px;
  height: 1px;
}

.chdemo-join-card {
  padding: 1.15rem 1.1rem 1.2rem;
  border-radius: 24px;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.14), rgba(255, 255, 255, 0.06));
  border: 1px solid rgba(255, 255, 255, 0.12);
  margin-bottom: 0.85rem;
}

.chdemo-join-card__eyebrow {
  margin: 0 0 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: #fbbf24;
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
}

.chdemo-join-card__title {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
}

.chdemo-join-card__desc {
  margin: 0.45rem 0 0.95rem;
  font-size: 0.84rem;
  line-height: 1.55;
  color: rgba(255, 255, 255, 0.62);
}

.chdemo-join-card__label {
  display: block;
  margin: 0 0 0.4rem;
  font-size: 0.75rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.55);
}

.chdemo-join-card__input {
  width: 100%;
  margin-bottom: 0.75rem;
  text-align: center;
  letter-spacing: 0.18em;
  font-weight: 800;
  text-transform: uppercase;
  font-size: 1.05rem;
  min-height: 48px;
  border-radius: 14px;
  background: rgba(15, 23, 42, 0.35) !important;
  border-color: rgba(255, 255, 255, 0.14) !important;
  color: #fff !important;
}

.chdemo-join-card__input::placeholder {
  letter-spacing: 0;
  text-transform: none;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.35);
}

.chdemo-join-card__input:focus {
  border-color: #22d3ee !important;
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.18);
}

.chdemo-join-card__btn {
  min-height: 48px;
  border-radius: 14px;
  font-weight: 800;
  font-size: 0.95rem;
}

.chdemo--immersive .chdemo-my-rank--empty {
  margin: 0.5rem 0 0.85rem;
  padding: 0.85rem 1rem;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.62);
  font-size: 0.88rem;
  text-align: center;
}

.chdemo--immersive .chdemo-stats {
  margin: 0.35rem 0 1rem;
}

.chdemo--immersive .chdemo-stat {
  border-radius: 16px;
  padding: 0.75rem 0.55rem;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.chdemo--immersive .chdemo-stat span {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.7rem;
}

.chdemo--immersive .chdemo-stat strong {
  color: #fff;
  font-size: 1.05rem;
}

.chdemo--immersive .chdemo-stat--win {
  background: rgba(52, 211, 153, 0.18);
  border-color: rgba(52, 211, 153, 0.45);
}
.chdemo--immersive .chdemo-stat--win span,
.chdemo--immersive .chdemo-stat--win strong { color: #34d399; }

.chdemo--immersive .chdemo-stat--lose {
  background: rgba(248, 113, 113, 0.18);
  border-color: rgba(248, 113, 113, 0.45);
}
.chdemo--immersive .chdemo-stat--lose span,
.chdemo--immersive .chdemo-stat--lose strong { color: #f87171; }

.chdemo--immersive .chdemo-stat--draw {
  background: rgba(148, 163, 184, 0.18);
  border-color: rgba(148, 163, 184, 0.45);
}
.chdemo--immersive .chdemo-stat--draw span,
.chdemo--immersive .chdemo-stat--draw strong { color: #94a3b8; }

.chdemo--immersive .chdemo-hub-tabs {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 14px;
  padding: 4px;
  margin: 0 0 0.9rem;
}

.chdemo--immersive .chdemo-hub-tab {
  color: rgba(255, 255, 255, 0.55);
  font-weight: 600;
  padding: 0.7rem 0.5rem;
  border-radius: 11px;
}

.chdemo--immersive .chdemo-hub-tab.is-active {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  font-weight: 800;
}

.chdemo--immersive .chdemo-filter-chip {
  border: none;
  background: rgba(255, 255, 255, 0.05);
  color: rgba(255, 255, 255, 0.55);
  border-radius: 18px;
  padding: 0.45rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
}

.chdemo--immersive .chdemo-filter-chip.is-active {
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-weight: 800;
}

.chdemo--immersive .chdemo-matches__count {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.82rem;
}

.chdemo--immersive .chdemo-matches__empty {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px;
  color: rgba(255, 255, 255, 0.62);
  padding: 1.5rem 1rem;
}

.chdemo--immersive .chdemo-matches__empty i {
  display: block;
  font-size: 1.75rem;
  margin-bottom: 0.55rem;
  color: rgba(255, 255, 255, 0.35);
}

.chdemo--immersive .chdemo-matches__empty p {
  margin: 0;
}

.chdemo--immersive .chdemo-match {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 18px;
  padding: 12px;
}

.chdemo--immersive .chdemo-match__badge {
  border-radius: 8px;
  font-size: 0.7rem;
  background: rgba(148, 163, 184, 0.16);
  color: #94a3b8;
}

.chdemo--immersive .chdemo-match--win .chdemo-match__badge {
  background: rgba(52, 211, 153, 0.16);
  color: #34d399;
}

.chdemo--immersive .chdemo-match--lose .chdemo-match__badge {
  background: rgba(248, 113, 113, 0.16);
  color: #f87171;
}

.chdemo--immersive .chdemo-match--draw .chdemo-match__badge {
  background: rgba(148, 163, 184, 0.16);
  color: #94a3b8;
}

.chdemo--immersive .chdemo-match__meta,
.chdemo--immersive .chdemo-match__date {
  color: rgba(255, 255, 255, 0.45);
}

.chdemo--immersive .chdemo-match__code {
  color: rgba(255, 255, 255, 0.78);
}

.chdemo--immersive .chdemo-match__vs {
  display: flex;
  align-items: stretch;
  gap: 0;
  grid-template-columns: none;
}

.chdemo--immersive .chdemo-match__side {
  flex: 1;
  min-width: 0;
  border-radius: 14px;
  padding: 10px;
}

.chdemo--immersive .chdemo-match__side--win {
  --ms: #34d399;
  background: rgba(52, 211, 153, 0.14);
  border-color: rgba(52, 211, 153, 0.35);
  color: #34d399;
}

.chdemo--immersive .chdemo-match__side--lose {
  --ms: #f87171;
  background: rgba(248, 113, 113, 0.14);
  border-color: rgba(248, 113, 113, 0.35);
  color: #f87171;
}

.chdemo--immersive .chdemo-match__side--draw {
  --ms: #94a3b8;
  background: rgba(148, 163, 184, 0.08);
  border-color: rgba(148, 163, 184, 0.18);
  color: #94a3b8;
}

.chdemo--immersive .chdemo-match__score {
  font-size: 1.25rem;
}

.chdemo--immersive .chdemo-board-scope {
  background: rgba(15, 23, 42, 0.35);
  border-color: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-radius: 12px;
}

.chdemo--immersive .chdemo-board-toolbar {
  margin: 0 0 0.65rem;
}

/* Multi-player rank board (3+) */
.chdemo-rankboard {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-height: calc(4 * 58px);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  margin-bottom: 0.15rem;
  padding-inline-end: 2px;
}

.chdemo-card--results .chdemo-rankboard {
  max-height: none;
  overflow: visible;
}

.chdemo-rankboard__row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  color: #fff;
  min-height: 52px;
}

.chdemo-rankboard__row.is-you {
  background: rgba(34, 211, 238, 0.12);
  border-color: rgba(34, 211, 238, 0.45);
}

.chdemo-rankboard__rank {
  width: 22px;
  text-align: center;
  font-size: 0.82rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.54);
  flex-shrink: 0;
}

.chdemo-rankboard__row.is-top .chdemo-rankboard__rank {
  color: #fbbf24;
}

.chdemo-rankboard__avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-size: 0.72rem;
  font-weight: 800;
  flex-shrink: 0;
  color: rgba(255, 255, 255, 0.75);
  background: rgba(255, 255, 255, 0.14);
}

.chdemo-rankboard__row.is-you .chdemo-rankboard__avatar {
  color: #22d3ee;
  background: rgba(34, 211, 238, 0.22);
}

.chdemo-rankboard__main {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.chdemo-rankboard__name-row {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

.chdemo-rankboard__name {
  min-width: 0;
  font-size: 0.82rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.chdemo-rankboard__row.is-you .chdemo-rankboard__name {
  color: #22d3ee;
}

.chdemo-rankboard__cw {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.7rem;
  font-weight: 800;
}

.chdemo-rankboard__cw i {
  margin-inline-end: 3px;
  font-size: 0.68rem;
}

.chdemo-rankboard__score {
  font-size: 0.95rem;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  flex-shrink: 0;
  min-width: 2.4rem;
  text-align: end;
}

.chdemo-rankboard__row.is-you .chdemo-rankboard__score {
  color: #22d3ee;
}

.chdemo-rankboard__cup {
  color: #fbbf24;
  font-size: 0.75rem;
  flex-shrink: 0;
}

.chdemo-rankboard--match {
  max-height: calc(4 * 58px);
}

@media (max-width: 520px) {
  .chdemo.chdemo--immersive {
    max-width: none;
    padding-inline: 0.15rem;
  }

  .chdemo-vs-card__score {
    font-size: 1.2rem;
  }
}