/* Reset & Global Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg-darkest: #1e1f22;
  --bg-dark: #2b2d31;
  --bg-medium: #313338;
  --bg-light: #383a40;
  --bg-active: #404249;
  
  --text-normal: #dbdee1;
  --text-muted: #949ba4;
  --text-heading: #f2f3f5;
  
  --brand-color: #5865f2;
  --brand-hover: #4752c4;
  --success-color: #23a55a;
  --danger-color: #f23f43;
  --warning-color: #f0b232;
  
  --border-radius: 8px;
  --transition-fast: 0.15s ease;
  --font-family: 'Inter', 'Gowun Dodum', -apple-system, BlinkMacSystemFont, sans-serif;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-darkest);
  color: var(--text-normal);
  height: 100vh;
  overflow: hidden;
}

.app-container {
  display: flex;
  width: 100vw;
  height: 100vh;
}

/* Sidebar */
.sidebar {
  width: 260px;
  background-color: var(--bg-dark);
  display: flex;
  flex-direction: column;
  border-right: 1px solid rgba(255, 255, 255, 0.05);
}

.server-brand {
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-heading);
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}

.brand-icon {
  font-size: 1.4rem;
}

.channel-section {
  padding: 16px 8px;
  flex: 1;
}

.section-header {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 0 8px 8px 8px;
}

.channel-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 12px;
  border-radius: 4px;
  color: var(--text-muted);
  cursor: pointer;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.channel-item:hover {
  background-color: var(--bg-light);
  color: var(--text-normal);
}

.channel-item.active {
  background-color: var(--bg-active);
  color: var(--text-heading);
  font-weight: 600;
}

.channel-icon {
  font-size: 1.1rem;
}

.channel-name {
  flex: 1;
}

.badge {
  background-color: var(--bg-darkest);
  color: var(--text-muted);
  padding: 2px 6px;
  border-radius: 10px;
  font-size: 0.75rem;
}

/* User Profile Bar */
.user-profile-bar {
  background-color: var(--bg-darkest);
  padding: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background-color: var(--brand-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}

.user-info {
  flex: 1;
  overflow: hidden;
}

.user-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--text-heading);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

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

.icon-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 4px 6px;
  border-radius: 4px;
  font-size: 1rem;
  transition: background-color var(--transition-fast);
}

.icon-btn:hover {
  background-color: var(--bg-light);
  color: var(--text-heading);
}

/* Main Content */
.main-content {
  flex: 1;
  display: flex;
  background-color: var(--bg-medium);
}

.top-bar {
  height: 48px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 16px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
  position: absolute;
  top: 0;
  left: 260px;
  right: 320px;
  background-color: var(--bg-medium);
  z-index: 10;
}

.header-title {
  display: flex;
  align-items: center;
  gap: 8px;
}

.header-title h2 {
  font-size: 1rem;
  color: var(--text-heading);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hashtag {
  color: var(--text-muted);
  font-size: 1.2rem;
}

.host-tag {
  background-color: var(--brand-color);
  color: #fff;
  font-size: 0.7rem;
  padding: 2px 6px;
  border-radius: 4px;
  font-weight: bold;
}

/* Voice Stage */
.voice-stage {
  flex: 1;
  display: flex;
  flex-direction: column;
  position: relative;
  padding-top: 48px;
}

.peers-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 16px;
  padding: 24px;
  overflow-y: auto;
  align-content: start;
}

.peer-card {
  background-color: var(--bg-dark);
  border-radius: 12px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  border: 2px solid transparent;
  transition: all 0.2s ease;
  box-shadow: 0 4px 6px rgba(0,0,0,0.15);
}

.peer-card.speaking {
  border-color: var(--success-color);
  box-shadow: 0 0 12px rgba(35, 165, 90, 0.4);
}

.peer-avatar {
  width: 70px;
  height: 70px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--brand-color), #8a2be2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  margin-bottom: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.peer-name {
  font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 4px;
}

.peer-status {
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 4px;
}

.peer-badge {
  position: absolute;
  top: 10px;
  right: 10px;
  font-size: 0.8rem;
}

/* Voice Controls Bar */
.voice-controls-bar {
  background-color: var(--bg-darkest);
  padding: 12px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid rgba(0, 0, 0, 0.2);
}

.control-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.control-btn {
  background-color: var(--bg-light);
  border: none;
  color: var(--text-normal);
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 500;
  font-size: 0.85rem;
  transition: all var(--transition-fast);
}

.control-btn:hover {
  background-color: var(--bg-active);
  color: var(--text-heading);
}

.control-btn.active {
  background-color: var(--bg-light);
}

.control-btn.muted {
  background-color: var(--danger-color);
  color: #fff;
}

/* Buttons */
.btn {
  border: none;
  padding: 8px 16px;
  border-radius: 4px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--brand-color);
  color: #fff;
}

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

.btn-secondary {
  background-color: var(--bg-light);
  color: var(--text-normal);
}

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

.btn-danger {
  background-color: var(--danger-color);
  color: #fff;
}

.btn-danger:hover {
  background-color: #d83a3e;
}

.btn-large {
  padding: 10px 20px;
  font-size: 0.95rem;
  border-radius: 6px;
}

.btn-block {
  width: 100%;
}

/* Right Panel: Chat & Users */
.right-panel {
  width: 320px;
  background-color: var(--bg-dark);
  display: flex;
  flex-direction: column;
  border-left: 1px solid rgba(0, 0, 0, 0.2);
}

.panel-tabs {
  display: flex;
  height: 48px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.2);
}

.tab-btn {
  flex: 1;
  background: none;
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

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

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

.panel-view {
  display: none;
  flex: 1;
  flex-direction: column;
  overflow: hidden;
}

.panel-view.active {
  display: flex;
}

/* Chat Messages */
.chat-messages {
  flex: 1;
  padding: 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.system-message {
  background-color: rgba(88, 101, 242, 0.1);
  border-left: 3px solid var(--brand-color);
  padding: 8px 12px;
  border-radius: 4px;
  font-size: 0.8rem;
  color: var(--text-normal);
  line-height: 1.4;
}

.chat-bubble {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.chat-bubble .sender {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 600;
}

.chat-bubble .text {
  background-color: var(--bg-medium);
  padding: 8px 12px;
  border-radius: 8px;
  font-size: 0.9rem;
  color: var(--text-heading);
  word-break: break-word;
}

.chat-bubble.mine {
  align-items: flex-end;
}

.chat-bubble.mine .text {
  background-color: var(--brand-color);
  color: #fff;
}

.chat-input-area {
  padding: 12px;
  display: flex;
  gap: 8px;
  background-color: var(--bg-darkest);
}

.chat-input-area input {
  flex: 1;
  background-color: var(--bg-medium);
  border: none;
  padding: 10px 12px;
  border-radius: 4px;
  color: var(--text-heading);
  outline: none;
  font-size: 0.9rem;
}

.chat-input-area input:focus {
  box-shadow: 0 0 0 2px var(--brand-color);
}

.btn-send {
  background-color: var(--brand-color);
  color: #fff;
  border: none;
  padding: 0 16px;
  border-radius: 4px;
  font-weight: 600;
  cursor: pointer;
}

/* User List */
.user-list {
  list-style: none;
  padding: 12px;
}

.user-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px;
  border-radius: 4px;
}

.user-item:hover {
  background-color: var(--bg-light);
}

.user-item .u-name {
  font-weight: 500;
  color: var(--text-normal);
  flex: 1;
}

.user-item .u-role {
  font-size: 0.7rem;
  color: var(--brand-color);
  font-weight: bold;
}

/* Modal */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

.modal-card {
  background-color: var(--bg-dark);
  width: 400px;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

.modal-header h2 {
  color: var(--text-heading);
  font-size: 1.3rem;
  margin-bottom: 6px;
}

.modal-header p {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-bottom: 20px;
}

.input-group {
  margin-bottom: 16px;
}

.input-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.input-group input {
  width: 100%;
  background-color: var(--bg-darkest);
  border: 1px solid rgba(255, 255, 255, 0.1);
  padding: 10px 12px;
  border-radius: 4px;
  color: var(--text-heading);
  font-size: 0.95rem;
  outline: none;
}

.input-group input:focus {
  border-color: var(--brand-color);
}

.hidden {
  display: none !important;
}