:root {
  --primary-color: #5865f2;
  --background-color: #36393f;
  --sidebar-color: #2f3136;
  --chat-color: #40444b;
  --text-color: #dcddde;
  --text-muted: #72767d;
  --input-color: #40444b;
  --border-color: #202225;
  --success-color: #3ba55c;
  --error-color: #ed4245;
}

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

body {
  font-family: 'Segoe UI', sans-serif;
  background-color: var(--background-color);
  color: var(--text-color);
  height: 100vh;
  overflow: hidden;
}

.hidden { display: none !important; }

.auth-screen {
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  background: linear-gradient(135deg, var(--primary-color), #4f545c);
}

.auth-container {
  background: var(--sidebar-color);
  padding: 2rem;
  border-radius: 8px;
  width: 100%;
  max-width: 480px;
}

.auth-header {
  text-align: center;
  margin-bottom: 2rem;
}

.auth-header h1 {
  color: var(--primary-color);
  margin-bottom: 0.5rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.form-group input {
  width: 100%;
  padding: 0.75rem;
  background: var(--input-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  color: var(--text-color);
  font-size: 1rem;
}

.btn {
  width: 100%;
  padding: 0.75rem;
  border: none;
  border-radius: 4px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

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

.auth-switch {
  text-align: center;
  margin-top: 1rem;
  color: var(--text-muted);
}

.auth-switch a {
  color: var(--primary-color);
  text-decoration: none;
}

.error-message {
  background-color: var(--error-color);
  color: white;
  padding: 0.75rem;
  border-radius: 4px;
  margin-top: 1rem;
  text-align: center;
}

.chat-container {
  display: flex;
  width: 100%;
  height: 100vh;
}

.servers-bar {
  width: 72px;
  background-color: var(--border-color);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 0;
  gap: 8px;
}

.server-icon {
  width: 48px;
  height: 48px;
  background-color: var(--sidebar-color);
  border-radius: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.2s;
  position: relative;
}

.server-icon:hover {
  border-radius: 16px;
  background-color: var(--primary-color);
  color: white;
}

.server-icon.active {
  border-radius: 16px;
  background-color: var(--primary-color);
  color: white;
}

.server-icon.active::before {
  content: '';
  position: absolute;
  left: -12px;
  width: 4px;
  height: 20px;
  background-color: white;
  border-radius: 2px;
}

.server-divider {
  width: 32px;
  height: 2px;
  background-color: var(--text-muted);
  margin: 4px 0;
}

.add-server {
  background-color: var(--input-color);
  color: var(--success-color);
}

.add-server:hover {
  background-color: var(--success-color);
  color: white;
}

.sidebar {
  width: 240px;
  background-color: var(--sidebar-color);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-color);
}

.server-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 60px;
}

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

.server-actions {
  display: flex;
  gap: 0.5rem;
}

.server-action-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  font-size: 0.9rem;
}

.server-action-btn:hover {
  background: var(--input-color);
  color: var(--text-color);
}

.channels-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.add-channel-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  font-size: 0.8rem;
}

.add-channel-btn:hover {
  background: var(--input-color);
  color: var(--success-color);
}

.user-info {
  display: flex;
  align-items: center;
  background: var(--background-color);
  padding: 0.75rem;
  border-top: 1px solid var(--border-color);
  margin-top: auto;
}

.user-avatar {
  width: 32px;
  height: 32px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.5rem;
}

.user-details {
  flex: 1;
  font-weight: 600;
  font-size: 0.9rem;
}

.logout-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
}

.logout-btn:hover {
  background: var(--error-color);
  color: white;
}

.channels-section, .online-users-section {
  padding: 1rem;
}

.channels-section h3, .online-users-section h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.channel-item {
  display: flex;
  align-items: center;
  padding: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.channel-item:hover, .channel-item.active {
  background: var(--background-color);
  color: var(--text-color);
}

.main-chat {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--chat-color);
}

.chat-header {
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
}

.messages-container {
  flex: 1;
  overflow-y: auto;
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.message {
  display: flex;
  padding: 0.5rem;
  border-radius: 4px;
}

.message-avatar {
  width: 40px;
  height: 40px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 1rem;
  flex-shrink: 0;
}

.message-content {
  flex: 1;
}

.message-header {
  display: flex;
  align-items: baseline;
  margin-bottom: 0.25rem;
}

.message-author {
  font-weight: 600;
  margin-right: 0.5rem;
}

.message-timestamp {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.message-input-container {
  padding: 1rem;
  border-top: 1px solid var(--border-color);
}

.message-input-wrapper {
  display: flex;
  align-items: center;
  background: var(--input-color);
  border-radius: 8px;
  padding: 0.75rem;
}

#message-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-color);
  font-size: 1rem;
  outline: none;
}

.send-btn {
  background: var(--primary-color);
  border: none;
  color: white;
  padding: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  margin-left: 0.5rem;
}

.admin-header {
  background: var(--sidebar-color);
  padding: 1rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.admin-nav {
  display: flex;
  gap: 1rem;
}

.nav-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  padding: 0.5rem 1rem;
  border-radius: 4px;
  cursor: pointer;
}

.nav-btn.active, .nav-btn:hover {
  background: var(--primary-color);
  color: white;
}

.admin-content {
  padding: 2rem;
  height: calc(100vh - 80px);
  overflow-y: auto;
}

.admin-tab {
  display: none;
}

.admin-tab.active {
  display: block;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: var(--sidebar-color);
  padding: 1.5rem;
  border-radius: 8px;
  text-align: center;
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--sidebar-color);
  border-radius: 8px;
  overflow: hidden;
}

th, td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-color);
}

th {
  background: var(--background-color);
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.user-item {
  display: flex;
  align-items: center;
  padding: 0.25rem 0;
  color: var(--text-color);
  font-size: 0.9rem;
}

.user-status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.5rem;
}

.status-online { background-color: var(--success-color); }
.status-idle { background-color: #faa61a; }
.status-dnd { background-color: var(--error-color); }
.status-offline { background-color: var(--text-muted); }

.welcome-message {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
}

.welcome-message h3 {
  color: var(--text-color);
  margin-bottom: 0.5rem;
}

.typing-indicator {
  font-size: 0.8rem;
  color: var(--text-muted);
  min-height: 1.2rem;
  font-style: italic;
}

.message:hover {
  background-color: rgba(79, 84, 92, 0.06);
}

.message-reactions {
  margin-top: 0.25rem;
  display: flex;
  gap: 0.25rem;
  flex-wrap: wrap;
}

.reaction {
  background: var(--input-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 0.125rem 0.5rem;
  font-size: 0.75rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.reaction:hover {
  border-color: var(--primary-color);
}

.reaction.user-reacted {
  border-color: var(--primary-color);
  background: rgba(88, 101, 242, 0.1);
}

.message-edited {
  font-size: 0.7rem;
  color: var(--text-muted);
  margin-left: 0.25rem;
}

@media (max-width: 768px) {
  .sidebar {
    width: 200px;
  }
  
  .auth-container {
    margin: 1rem;
    padding: 1.5rem;
  }
}

.message-actions {
  margin-left: auto;
  opacity: 0;
  transition: opacity 0.2s;
}

.message:hover .message-actions {
  opacity: 1;
}

.reply-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  font-size: 0.8rem;
}

.reply-btn:hover {
  background: var(--input-color);
  color: var(--text-color);
}

.message-reply {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
  padding: 0.25rem 0.5rem;
  background: var(--input-color);
  border-left: 3px solid var(--primary-color);
  border-radius: 4px;
}

.reply-indicator {
  display: none;
  align-items: center;
  background: var(--input-color);
  border: 1px solid var(--border-color);
  border-radius: 8px 8px 0 0;
  padding: 0.5rem;
  margin-bottom: 0;
}

.reply-content {
  flex: 1;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.cancel-reply {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
}

.cancel-reply:hover {
  background: var(--error-color);
  color: white;
}

.message-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.settings-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
  border-radius: 4px;
  margin-right: 0.25rem;
}

.settings-btn:hover {
  background: var(--input-color);
  color: var(--text-color);
}

.modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
}

.modal-content {
  background: var(--sidebar-color);
  border-radius: 8px;
  width: 90%;
  max-width: 600px;
  max-height: 80vh;
  overflow-y: auto;
}

.modal-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.modal-header h2 {
  margin: 0;
  color: var(--text-color);
}

.modal-close {
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.25rem;
}

.modal-close:hover {
  color: var(--text-color);
}

.modal-body {
  padding: 1.5rem;
}

.modal-footer {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  display: flex;
  gap: 1rem;
  justify-content: flex-end;
}

.settings-section {
  margin-bottom: 2rem;
}

.settings-section h3 {
  color: var(--text-color);
  margin-bottom: 1rem;
  font-size: 1.1rem;
}

.setting-item {
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.setting-item label {
  color: var(--text-color);
  font-weight: 500;
}

.setting-item select,
.setting-item input[type="text"] {
  background: var(--input-color);
  border: 1px solid var(--border-color);
  border-radius: 4px;
  padding: 0.5rem;
  color: var(--text-color);
  min-width: 150px;
}

.setting-item input[type="checkbox"] {
  margin-left: 0.5rem;
  accent-color: var(--primary-color);
}

.btn-secondary {
  background: var(--input-color);
  color: var(--text-color);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background: var(--background-color);
}

.voice-channel-item {
  display: flex;
  align-items: center;
  padding: 0.5rem;
  border-radius: 4px;
  cursor: pointer;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
  position: relative;
}

.voice-channel-item:hover {
  background: var(--background-color);
  color: var(--text-color);
}

.voice-channel-item.active {
  background: var(--primary-color);
  color: white;
}

.voice-channel-item i {
  margin-right: 0.5rem;
  width: 16px;
  text-align: center;
}

.voice-modal {
  max-width: 500px;
}

.voice-controls {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1rem;
  background: var(--input-color);
  border-radius: 8px;
}

.voice-btn {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  border: none;
  background: var(--background-color);
  color: var(--text-color);
  font-size: 1.2rem;
  cursor: pointer;
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

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

.voice-btn.muted {
  background: var(--error-color);
  color: white;
}

.voice-btn.disconnect {
  background: var(--error-color);
  color: white;
}

.voice-btn.disconnect:hover {
  background: #c41e3a;
}

.voice-participants {
  margin-bottom: 1rem;
}

.voice-participants h3 {
  color: var(--text-color);
  margin-bottom: 1rem;
  font-size: 1rem;
}

.voice-user-item {
  display: flex;
  align-items: center;
  padding: 0.5rem;
  margin-bottom: 0.5rem;
  background: var(--input-color);
  border-radius: 4px;
}

.voice-user-avatar {
  width: 32px;
  height: 32px;
  background: var(--primary-color);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-right: 0.75rem;
  font-size: 0.9rem;
}

.voice-user-info {
  flex: 1;
}

.voice-user-name {
  font-weight: 600;
  color: var(--text-color);
}

.voice-user-status {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.voice-indicators {
  display: flex;
  gap: 0.25rem;
}

.voice-indicator {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.7rem;
}

.voice-indicator.speaking {
  background: var(--success-color);
  color: white;
}

.voice-indicator.muted {
  background: var(--error-color);
  color: white;
}

.connection-status {
  text-align: center;
  padding: 1rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.connection-status.connected {
  color: var(--success-color);
}

.connection-status.error {
  color: var(--error-color);
}