/* ============================================
   CSS Variables & Reset
   ============================================ */
:root {
  /* Discord-like color palette */
  --bg-primary: #1e1f22;
  --bg-secondary: #2b2d31;
  --bg-tertiary: #313338;
  --bg-accent: #404249;
  --bg-hover: #35373c;

  --text-primary: #f2f3f5;
  --text-secondary: #b5bac1;
  --text-muted: #949ba4;

  --accent-primary: #5865f2;
  --accent-primary-hover: #4752c4;
  --accent-success: #23a55a;
  --accent-success-hover: #1a7f45;
  --accent-warning: #f0b232;
  --accent-warning-hover: #c99a2b;
  --accent-danger: #da373c;
  --accent-danger-hover: #a12d31;

  --border-color: #3f4147;
  --shadow-color: rgba(0, 0, 0, 0.25);

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;

  /* Border radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-full: 50%;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.25s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  line-height: 1.5;
}

/* ============================================
   App Container
   ============================================ */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* ============================================
   Header
   ============================================ */
.header {
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md) var(--spacing-lg);
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.header-content {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.logo-icon {
  width: 32px;
  height: 32px;
  color: var(--accent-primary);
  filter: drop-shadow(0 0 8px rgba(88, 101, 242, 0.4));
}

.logo h1 {
  font-size: 1.25rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--text-primary), var(--accent-primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Guild Selector */
.guild-select-wrapper {
  margin-right: var(--spacing-md);
  min-width: 200px;
}

.guild-select {
  width: 100%;
  padding: 6px 12px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.guild-select:hover {
  border-color: var(--accent-primary);
  background: var(--bg-accent);
}

.guild-select:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 2px rgba(88, 101, 242, 0.2);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.btn-sm {
  padding: 4px 12px;
  font-size: 0.75rem;
}

.connection-status {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-xs) var(--spacing-md);
  background: var(--bg-accent);
  border-radius: var(--radius-full);
  font-size: 0.875rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  background: var(--accent-warning);
  animation: pulse 2s infinite;
}

.connection-status.connected .status-dot {
  background: var(--accent-success);
  animation: none;
}

.connection-status.disconnected .status-dot {
  background: var(--accent-danger);
  animation: none;
}

@keyframes pulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.5;
  }
}

/* ============================================
   Main Content
   ============================================ */
.main-content {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: var(--spacing-lg);
}

/* ============================================
   Action Bar
   ============================================ */
.action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border-radius: var(--radius-lg);
  margin-bottom: var(--spacing-lg);
  border: 1px solid var(--border-color);
  box-shadow: 0 4px 16px var(--shadow-color);
}

.selected-count {
  font-size: 0.95rem;
  color: var(--text-secondary);
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-accent);
  border-radius: var(--radius-md);
  min-width: 120px;
  text-align: center;
}

.selected-count span {
  font-weight: 700;
  color: var(--accent-primary);
  font-size: 1.1rem;
}

.divider {
  width: 1px;
  height: 24px;
  background: var(--border-color);
  margin: 0 var(--spacing-sm);
}

.region-section {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.action-buttons {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

.move-section {
  display: flex;
  gap: var(--spacing-sm);
}

.channel-select {
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  min-width: 180px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.channel-select:hover:not(:disabled) {
  border-color: var(--accent-primary);
}

.channel-select:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.channel-select option {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

/* ============================================
   Buttons
   ============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: var(--spacing-sm) var(--spacing-md);
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn svg {
  width: 18px;
  height: 18px;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

.btn:not(:disabled):hover {
  transform: translateY(-1px);
}

.btn:not(:disabled):active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--accent-primary);
  color: white;
}

.btn-primary:not(:disabled):hover {
  background: var(--accent-primary-hover);
}

.btn-success {
  background: var(--accent-success);
  color: white;
}

.btn-success:not(:disabled):hover {
  background: var(--accent-success-hover);
}

.btn-warning {
  background: var(--accent-warning);
  color: var(--bg-primary);
}

.btn-warning:not(:disabled):hover {
  background: var(--accent-warning-hover);
}

.btn-secondary {
  background: var(--bg-accent);
  color: var(--text-primary);
}

.btn-secondary:not(:disabled):hover {
  background: var(--bg-hover);
}

/* ============================================
   Channels Container
   ============================================ */
.channels-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--spacing-lg);
}

/* ============================================
   Loading State
   ============================================ */
.loading {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) * 2;
  color: var(--text-muted);
}

.spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--bg-accent);
  border-top-color: var(--accent-primary);
  border-radius: var(--radius-full);
  animation: spin 1s linear infinite;
  margin-bottom: var(--spacing-md);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ============================================
   Empty State
   ============================================ */
.empty-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-xl) * 2;
  color: var(--text-muted);
  text-align: center;
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-md);
  opacity: 0.5;
}

/* ============================================
   Channel Card
   ============================================ */
.channel-card {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  box-shadow: 0 4px 16px var(--shadow-color);
}

.channel-card:hover {
  border-color: var(--accent-primary);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--shadow-color);
}

.channel-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: linear-gradient(135deg, var(--bg-tertiary), var(--bg-accent));
  border-bottom: 1px solid var(--border-color);
}

.channel-icon {
  width: 24px;
  height: 24px;
  color: var(--text-muted);
}

.channel-name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text-primary);
  flex: 1;
}

.member-count {
  font-size: 0.75rem;
  color: var(--text-muted);
  background: var(--bg-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-full);
}

.vc-actions {
  display: flex;
  align-items: center;
  margin-right: var(--spacing-sm);
}

.vc-select-btn {
  width: 20px;
  height: 20px;
  border: 1.5px solid var(--text-muted);
  border-radius: var(--radius-sm);
  background: transparent;
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-fast);
  padding: 0;
}

.vc-select-btn svg {
  width: 14px;
  height: 14px;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.vc-select-btn:hover {
  border-color: var(--accent-primary);
  background: rgba(88, 101, 242, 0.1);
}

.vc-select-btn.active {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.vc-select-btn.active svg {
  opacity: 1;
}

.channel-members {
  padding: var(--spacing-sm);
}

/* ============================================
   Member Item
   ============================================ */
.member-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  user-select: none;
}

.member-item:hover {
  background: var(--bg-hover);
}

.member-item.selected {
  background: rgba(88, 101, 242, 0.2);
  border: 1px solid rgba(88, 101, 242, 0.5);
}

.member-checkbox {
  width: 18px;
  height: 18px;
  border: 2px solid var(--text-muted);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.member-item.selected .member-checkbox {
  background: var(--accent-primary);
  border-color: var(--accent-primary);
}

.member-checkbox svg {
  width: 12px;
  height: 12px;
  color: white;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.member-item.selected .member-checkbox svg {
  opacity: 1;
}

.member-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  object-fit: cover;
  border: 2px solid var(--bg-accent);
  flex-shrink: 0;
}

.member-info {
  flex: 1;
  min-width: 0;
}

.member-name {
  font-weight: 500;
  font-size: 0.9rem;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.member-username {
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.member-status {
  display: flex;
  gap: var(--spacing-xs);
  flex-shrink: 0;
}

.status-icon {
  width: 20px;
  height: 20px;
  padding: 2px;
  border-radius: var(--radius-sm);
  background: var(--bg-accent);
}

.status-icon.muted {
  color: var(--accent-danger);
}

.status-icon.deafened {
  color: var(--accent-danger);
}

.status-icon.self-muted {
  color: var(--text-muted);
}

.status-icon.self-deafened {
  color: var(--text-muted);
}

/* ============================================
   Toast Notifications
   ============================================ */
.toast-container {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  z-index: 1000;
}

.toast {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  box-shadow: 0 8px 24px var(--shadow-color);
  animation: slideIn 0.3s ease;
  max-width: 400px;
}

.toast.success {
  border-left: 4px solid var(--accent-success);
}

.toast.error {
  border-left: 4px solid var(--accent-danger);
}

.toast.warning {
  border-left: 4px solid var(--accent-warning);
}

.toast-icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

.toast.success .toast-icon {
  color: var(--accent-success);
}

.toast.error .toast-icon {
  color: var(--accent-danger);
}

.toast.warning .toast-icon {
  color: var(--accent-warning);
}

.toast-message {
  flex: 1;
  font-size: 0.875rem;
}

.toast-close {
  width: 24px;
  height: 24px;
  padding: 4px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
}

.toast-close:hover {
  background: var(--bg-accent);
  color: var(--text-primary);
}

@keyframes slideIn {
  from {
    transform: translateX(100%);
    opacity: 0;
  }

  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes slideOut {
  from {
    transform: translateX(0);
    opacity: 1;
  }

  to {
    transform: translateX(100%);
    opacity: 0;
  }
}

/* ============================================
   Responsive Design
   ============================================ */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: var(--spacing-sm);
  }

  .action-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .action-buttons {
    justify-content: center;
  }

  .move-section {
    flex-direction: column;
    width: 100%;
  }

  .channel-select {
    width: 100%;
  }

  .channels-container {
    grid-template-columns: 1fr;
  }
}

/* ============================================
   Loading Spinner for Buttons
   ============================================ */
.spinner {
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
  margin-right: 6px;
  vertical-align: middle;
}

.spinner-icon {
  width: 18px;
  height: 18px;
  animation: spin 1s linear infinite;
}

/* ============================================
   Stage Channel Badge
   ============================================ */
.channel-type-badge {
  font-size: 0.65rem;
  font-weight: 600;
  text-transform: uppercase;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, #ff7b54, #ff3d3d);
  color: white;
  letter-spacing: 0.5px;
}

/* ============================================
   Search Section
   ============================================ */
.search-section {
  position: relative;
  flex: 1;
  min-width: 250px;
}

.search-input {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  padding-left: 40px;
  background: var(--bg-tertiary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
}

.search-input:focus {
  outline: none;
  border-color: var(--accent-primary);
  background: var(--bg-accent);
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 20px;
  height: 20px;
  color: var(--text-muted);
  pointer-events: none;
}

/* ============================================
   Drag & Drop Styles
   ============================================ */
.member-item {
  cursor: grab;
}

.member-item:active {
  cursor: grabbing;
}

.member-item.dragging {
  opacity: 0.5;
  border: 2px dashed var(--accent-primary);
}

.channel-card.drag-over {
  border-color: var(--accent-primary);
  background: rgba(88, 101, 242, 0.1);
  transform: scale(1.02);
}

/* ============================================
   Permission Warnings
   ============================================ */
.member-item.no-permission {
  opacity: 0.6;
}

.permission-warning {
  color: var(--accent-danger);
  width: 18px;
  height: 18px;
  margin-left: var(--spacing-xs);
}

.channel-card.no-access {
  opacity: 0.5;
  pointer-events: none;
}

/* ============================================
   Tabs & Voice Logs (VC入退室ログ)
   ============================================ */
.tab-nav {
  display: flex;
  gap: var(--spacing-sm);
  padding: 0 var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  padding: var(--spacing-sm) var(--spacing-md);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.tab-btn:hover {
  color: var(--text-primary);
}

.tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--accent-primary);
}

.log-list-container {
  padding: var(--spacing-md) var(--spacing-lg);
  overflow-y: auto;
}

.log-table {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.log-row {
  display: grid;
  grid-template-columns: 72px 160px 1fr 180px;
  align-items: center;
  gap: var(--spacing-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: var(--spacing-sm) var(--spacing-md);
}

.log-badge {
  display: inline-block;
  text-align: center;
  font-size: 12px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  background-color: var(--bg-accent);
  color: var(--text-primary);
}

.log-badge-join {
  background-color: var(--accent-success);
  color: #fff;
}

.log-badge-leave {
  background-color: var(--accent-danger);
  color: #fff;
}

.log-badge-move {
  background-color: var(--accent-warning);
  color: #1e1f22;
}

.log-user {
  font-weight: 500;
  color: var(--text-primary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.log-detail {
  color: var(--text-secondary);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.log-time {
  color: var(--text-muted);
  font-size: 13px;
  text-align: right;
}

.log-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  color: var(--text-secondary);
  font-size: 13px;
}

@media (max-width: 768px) {
  .log-row {
    grid-template-columns: 1fr;
    gap: var(--spacing-xs);
  }

  .log-time {
    text-align: left;
  }
}