.collab-panel-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(2px);
  z-index: var(--collab-z-panel-backdrop, 1100);
}

.collab-detail-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: min(480px, 95vw);
  height: 100dvh;
  background: #fff;
  box-shadow: -4px 0 32px rgba(0, 0, 0, 0.12);
  z-index: var(--collab-z-panel, 1101);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  overflow: hidden;

  &--open {
    transform: translateX(0);
  }

  &__header {
    padding: 20px 20px 16px;
    border-bottom: 1px solid var(--collab-border, #e2e8f0);
    flex-shrink: 0;
  }

  &__title-row {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
  }

  &__title-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    min-width: 0;
  }

  &__title {
    font-size: 17px;
    font-weight: 700;
    color: var(--collab-text-primary, #1a202c);
    margin: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
  }

  &__info-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    padding: 16px 20px;
    border-bottom: 1px solid var(--collab-border, #e2e8f0);
    flex-shrink: 0;
  }

  &__control-request {
    margin: 12px 20px;
    padding: 12px 16px;
    background: rgba(214, 158, 46, 0.1);
    border: 1px solid rgba(214, 158, 46, 0.4);
    border-radius: 10px;
    flex-shrink: 0;
  }

  &__control-request-text {
    font-size: 13px;
    color: var(--collab-text-primary, #1a202c);
    margin: 0 0 10px;
  }

  &__control-actions {
    display: flex;
    gap: 8px;
  }

  &__body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
  }

  &__participants-title {
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--collab-text-muted, #718096);
    margin: 0 0 12px;
  }

  &__invite {
    padding: 16px 20px;
    border-top: 1px solid var(--collab-border, #e2e8f0);
    flex-shrink: 0;
  }

  &__audit {
    padding: 8px 20px 16px;
    border-top: 1px solid var(--collab-border, #e2e8f0);
    flex-shrink: 0;
  }

  &__footer {
    padding: 16px 20px;
    border-top: 1px solid var(--collab-border, #e2e8f0);
    flex-shrink: 0;
    background: var(--collab-surface, #f7fafc);
  }
}

.collab-code-pill {
  font-family: 'DM Mono', monospace;
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 20px;
  background: var(--collab-surface, #f7fafc);
  border: 1px solid var(--collab-border, #e2e8f0);
  color: var(--collab-text-muted, #718096);
  white-space: nowrap;
}

.collab-status-pill {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;

  &--active {
    background: rgba(56, 178, 172, 0.12);
    color: #319795;
  }

  &--paused {
    background: rgba(214, 158, 46, 0.12);
    color: #b7791f;
  }

  &--pending {
    background: rgba(49, 130, 206, 0.12);
    color: #2b6cb0;
  }

  &--ended,
  &--abandoned,
  &--cancelled {
    background: rgba(113, 128, 150, 0.12);
    color: #718096;
  }
}

.collab-info-item {
  display: flex;
  flex-direction: column;
  gap: 2px;

  &__label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--collab-text-muted, #718096);
  }

  &__value {
    font-size: 14px;
    font-weight: 500;
    color: var(--collab-text-primary, #1a202c);
  }
}

.collab-participant-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.collab-participant-row__control-icon {
  font-size: 16px;
  width: 16px;
  height: 16px;
  color: var(--collab-teal, #38b2ac);
  flex-shrink: 0;
}

.collab-audit-list {
  margin-top: 8px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.collab-audit-row {
  font-size: 12px;
  color: var(--collab-text-primary, #1a202c);
  padding: 4px 0;
  border-bottom: 1px solid var(--collab-border, #e2e8f0);

  &__type {
    font-weight: 600;
  }
}

.collab-small {
  font-size: 11px;
}

.collab-participant-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 8px;
  transition: background 0.1s;

  &:hover {
    background: var(--collab-surface, #f7fafc);
  }

  &__avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
  }

  &__info {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
  }

  &__name {
    font-size: 14px;
    font-weight: 500;
    color: var(--collab-text-primary, #1a202c);
    display: flex;
    align-items: center;
    gap: 6px;
  }

  &__role {
    font-size: 12px;
  }

  &__actions {
    display: flex;
    gap: 4px;
    flex-shrink: 0;
  }
}

.collab-you-badge {
  font-size: 10px;
  padding: 1px 6px;
  border-radius: 10px;
  background: var(--collab-teal-glow, rgba(56, 178, 172, 0.15));
  color: var(--collab-teal, #38b2ac);
  font-weight: 600;
}

.collab-icon-btn {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: none;
  background: transparent;
  cursor: pointer;
  font-size: 14px;
  color: var(--collab-text-muted, #718096);
  flex-shrink: 0;
  transition: background 0.15s;

  &:hover {
    background: var(--collab-surface, #f7fafc);
  }
}

.collab-link-btn {
  background: none;
  border: none;
  cursor: pointer;
  font-size: 16px;
  padding: 4px;
  border-radius: 4px;
  transition: background 0.1s;

  &:hover {
    background: var(--collab-surface, #f7fafc);
  }
}

.collab-mono {
  font-family: 'DM Mono', monospace;
}

.collab-muted {
  color: var(--collab-text-muted, #718096);
}

.collab-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  font-size: 14px;
  font-weight: 500;
  transition: background 0.15s;
  white-space: nowrap;

  &--primary {
    background: var(--collab-teal, #38b2ac);
    color: #fff;

    &:hover {
      background: #319795;
    }
  }

  &--ghost {
    background: transparent;
    color: var(--collab-text-primary, #1a202c);
    border: 1px solid var(--collab-border, #e2e8f0);

    &:hover {
      background: #edf2f7;
    }
  }

  &--danger {
    background: var(--collab-red-dim, rgba(197, 48, 48, 0.12));
    color: var(--collab-red, #fc8181);
    margin-left: auto;

    &:hover {
      background: rgba(197, 48, 48, 0.2);
    }
  }

  &--sm {
    padding: 5px 12px;
    font-size: 13px;
  }
}

[dir='rtl'] {
  .collab-detail-panel {
    right: auto;
    left: 0;
    transform: translateX(-100%);

    &--open {
      transform: translateX(0);
    }

    &__title-row {
      flex-direction: row-reverse;
    }

    &__footer {
      flex-direction: row-reverse;
    }
  }

  .collab-btn--danger {
    margin-left: 0;
    margin-right: auto;
  }
}