.social-screen {
  padding: var(--space-md);
  min-width: 0;
  max-width: 100%;
}

.social__tabs {
  margin-bottom: var(--space-lg);
}

/* ═══ Friend code display ═══ */
.social__friend-code {
  min-width: 0;
  background: var(--color-primary-50);
  border: 2px dashed var(--color-primary-200);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  margin-bottom: var(--space-lg);
  text-align: center;
}

.social__friend-code-label {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-xs);
}

.social__qr-card {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: min(168px, 72vw);
  aspect-ratio: 1;
  padding: 10px;
  margin: var(--space-sm) auto;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  cursor: pointer;
}

.social__qr-card svg {
  display: block;
  width: 100%;
  height: 100%;
}

.social__friend-code-value {
  display: inline-flex;
  align-items: center;
  max-width: 100%;
  min-width: 0;
  gap: var(--space-sm);
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-md);
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
  margin: var(--space-xs) 0;
}

.social__friend-code-value:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary);
}

.social__friend-code-value:active {
  transform: scale(0.97);
}

.social__friend-code-text {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-lg);
  letter-spacing: 0.15em;
  color: var(--color-primary);
}

.social__friend-code-copy {
  font-size: var(--text-xs);
  font-weight: 600;
  color: var(--text-muted);
  white-space: nowrap;
}

.social__friend-code-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
  margin-top: var(--space-xs);
}

/* ═══ Add friend ═══ */
.social__add-friend {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.social__add-input {
  flex: 1;
  min-width: 0;
}

@media (max-width: 430px) {
  .social__add-friend { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .social__add-input { grid-column: 1 / -1; }
}

.social__qr-modal {
  display: grid;
  gap: var(--space-md);
  min-width: 0;
}

.social__qr-frame {
  position: relative;
  overflow: hidden;
  width: min(72vw, 320px);
  aspect-ratio: 1;
  margin: 0 auto;
  background: #111827;
  border-radius: var(--radius-lg);
}

.social__qr-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.social__qr-corner {
  position: absolute;
  width: 42px;
  height: 42px;
  border-color: #fff;
  border-style: solid;
  pointer-events: none;
}

.social__qr-corner--tl {
  top: 14px;
  left: 14px;
  border-width: 3px 0 0 3px;
}

.social__qr-corner--tr {
  top: 14px;
  right: 14px;
  border-width: 3px 3px 0 0;
}

.social__qr-corner--bl {
  bottom: 14px;
  left: 14px;
  border-width: 0 0 3px 3px;
}

.social__qr-corner--br {
  right: 14px;
  bottom: 14px;
  border-width: 0 3px 3px 0;
}

.social__qr-status {
  max-width: min(72vw, 320px);
  margin: 0 auto;
  color: var(--text-muted);
  font-size: var(--text-sm);
  text-align: center;
  overflow-wrap: anywhere;
}

/* ═══ Friends list ═══ */
.social__friends-list {
  display: grid;
  gap: var(--space-sm);
  min-width: 0;
}

.friend-card {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 8px;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  min-width: 0;
}

.friend-card__info {
  flex: 1;
  min-width: 0;
}

.friend-card__name {
  font-weight: 600;
  font-size: var(--text-sm);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.friend-card__status {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.friend-card__online {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-success);
  flex-shrink: 0;
}

.friend-card__offline {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--text-muted);
  flex-shrink: 0;
}

.friend-card__actions {
  display: flex;
  gap: var(--space-xs);
  grid-column: 1 / -1;
  width: 100%;
  min-width: 0;
  max-width: 100%;
  flex-wrap: wrap;
  justify-content: stretch;
}

.friend-card__actions .btn,
.friend-card__actions .badge {
  flex: 1 1 7rem;
  min-width: 0;
}

/* ═══ Remove friend button ═══ */
.social__remove-btn {
  font-size: var(--text-xs);
  padding: 4px 8px;
}

/* ═══ Challenge cards ═══ */
.challenge-card {
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
  min-width: 0;
}

.challenge-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  min-width: 0;
  margin-bottom: var(--space-sm);
  flex-wrap: wrap;
}

.challenge-card__players {
  display: flex;
  align-items: center;
  min-width: 0;
  gap: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: 600;
}

.challenge-card__players,
.challenge-card__vs {
  overflow-wrap: anywhere;
}

@media (max-width: 360px) {
  .social-screen {
    padding: 12px;
  }

  .social__add-friend {
    grid-template-columns: 1fr;
  }

  .social__add-friend .btn {
    width: 100%;
  }

  .friend-card {
    grid-template-columns: 42px minmax(0, 1fr) 8px;
    gap: 10px;
    padding: 12px;
  }

  .friend-card .avatar {
    width: 42px;
    height: 42px;
  }

  .friend-card__actions .btn,
  .friend-card__actions .badge {
    flex-basis: 0;
  }

  .social__qr-frame,
  .social__qr-status {
    max-width: 76vw;
  }
}

.challenge-card__vs {
  color: var(--color-secondary);
  font-weight: 800;
}

.challenge-card__status {
  font-size: var(--text-xs);
}

.challenge-card__scores {
  display: flex;
  justify-content: space-around;
  margin-top: var(--space-sm);
}

.challenge-card__score {
  text-align: center;
}

.challenge-card__score-value {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--text-xl);
  color: var(--color-primary);
}

.challenge-card__score-label {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* ═══ Tablet (640px+) ═══ */
@media (min-width: 640px) {
  .social-screen {
    padding: var(--space-lg);
  }

  .social__friend-code {
    padding: var(--space-lg);
  }

  .social__qr-card {
    width: 184px;
  }

  .social__friend-code-text {
    font-size: var(--text-xl);
  }

  .social__add-input {
    font-size: var(--text-base);
  }

  .friend-card {
    padding: var(--space-lg);
  }

  .friend-card__name {
    font-size: var(--text-base);
  }

  .friend-card__status {
    font-size: var(--text-sm);
  }

  .friend-card__actions {
    gap: var(--space-sm);
  }

  .challenge-card {
    padding: var(--space-lg);
  }

  .challenge-card__players {
    font-size: var(--text-base);
  }
}

/* ═══ Desktop (1024px+) ═══ */
@media (min-width: 1024px) {
  .social-screen {
    padding: var(--space-xl);
  }

  .social__friend-code-value {
    padding: var(--space-md) var(--space-lg);
  }

  .social__friend-code-text {
    font-size: var(--text-2xl);
  }

  .social__friends-list {
    gap: var(--space-md);
  }

  .friend-card__actions .btn {
    font-size: var(--text-sm);
    padding: 8px 16px;
  }

  .social__remove-btn {
    font-size: var(--text-sm);
    padding: 8px 12px;
  }
}

/* Duel cards: a challenge that actually resolves, with both rounds compared. */
.duel-card {
  padding: var(--space-md);
  margin-bottom: var(--space-sm);
  min-width: 0;
}

.duel-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  min-width: 0;
  flex-wrap: wrap;
}

.duel-card__mode {
  font-size: var(--text-sm);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.duel-card__score {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: var(--space-sm);
}

.duel-card__score-mine,
.duel-card__score-theirs {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1;
}

.duel-card__score-theirs {
  opacity: .75;
}

.duel-card__score-sep {
  font-size: 1.1rem;
  opacity: .5;
}

.duel-card__score-label {
  font-size: .78rem;
  opacity: .7;
  margin-left: 4px;
}