/* ==========================================================================
   Friend Picker Modal
   친구 선택 모달 컴포넌트
   ========================================================================== */

.friend-picker-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-popover);
}

.friend-picker-backdrop {
  position: absolute;
  inset: 0;
  background: transparent;
}

.friend-picker-content {
  position: fixed;
  left: var(--spacing-list-sm);
  right: var(--spacing-list-sm);
  bottom: var(--spacing-list-sm);
  max-height: calc(100vh - 16px);
  background: var(--color-bg-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-modal);
  display: flex;
  flex-direction: column;
}

.friend-picker-list {
  min-height: 0;
}

.friend-picker-modal.hidden {
  display: none;
}

/* ---------------------------------------------------------------------------
   Header
   --------------------------------------------------------------------------- */
.friend-picker-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-section);
}

.friend-picker-title {
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
}

.friend-picker-close {
  width: var(--btn-height-sm);
  height: var(--btn-height-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-primary);
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
}

.friend-picker-done {
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  letter-spacing: var(--letter-spacing-tight);
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--spacing-list-sm) var(--spacing-list-md);
  -webkit-user-select: none;
  user-select: none;
  touch-action: manipulation;
}

/* ---------------------------------------------------------------------------
   Search
   --------------------------------------------------------------------------- */
.friend-picker-search {
  padding: var(--spacing-list-sm) var(--spacing-section);
}

.friend-picker-search-input {
  width: 100%;
  height: var(--avatar-size-md);
  padding: 0 var(--spacing-list-md);
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
  background: var(--color-bg-white);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-base);
  outline: none;
  box-sizing: border-box;
}

.friend-picker-search-input::placeholder {
  color: var(--color-text-muted);
}

.friend-picker-search-input:focus {
  border-color: var(--color-fill-dark);
}

/* ---------------------------------------------------------------------------
   List
   --------------------------------------------------------------------------- */
.friend-picker-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 0;
}

.friend-picker-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-list-md);
  padding: var(--spacing-list-md) var(--spacing-section);
  cursor: pointer;
  transition: background-color 0.15s ease;
  -webkit-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
  touch-action: manipulation;
}

.friend-picker-item:active {
  background: var(--color-hover-subtle);
}

.friend-picker-avatar {
  flex-shrink: 0;
}

.friend-picker-avatar__image {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.friend-picker-avatar__placeholder {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--color-border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
}

.friend-picker-avatar__initial {
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-avatar-text);
}

.friend-picker-name {
  flex: 1;
  font-size: var(--font-size-md);
  color: var(--color-text-primary);
}

.friend-picker-name-group {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.friend-picker-name-group .friend-picker-name {
  flex: none;
}

.friend-picker-username {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ---------------------------------------------------------------------------
   Checkbox
   --------------------------------------------------------------------------- */
.friend-picker-check {
  width: var(--avatar-size-sm);
  height: var(--avatar-size-sm);
  border-radius: var(--radius-full);
  background: var(--color-border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.friend-picker-check svg {
  opacity: 0;
  transition: opacity 0.15s ease;
}

.friend-picker-item.selected .friend-picker-check {
  background: var(--color-fill-dark);
}

.friend-picker-item.selected .friend-picker-check svg {
  opacity: 1;
}

/* ---------------------------------------------------------------------------
   Empty State
   --------------------------------------------------------------------------- */
.friend-picker-empty {
  padding: var(--btn-icon-size) var(--icon-size-md);
  text-align: center;
  color: var(--color-text-secondary);
}

.friend-picker-empty__hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--spacing-1);
}