/* =============================================================================
   Chat Panel — shared sidebar styles
   ============================================================================= */

/* === Chat Badge (unread count on toggle button) === */
.chat-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  min-width: 16px;
  height: 16px;
  padding: 0 4px;
  background: var(--accent-color, #5dade2);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  line-height: 16px;
  text-align: center;
  border-radius: 8px;
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition-fast) var(--ease-glass);
}

.chat-badge.visible {
  opacity: 1;
}

/* === Chat Panel — full-height sidebar === */
#chat-panel {
  position: fixed;
  top: 0;
  right: 0;
  width: 340px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  z-index: 40;
  background: var(--glass-bg-strong);
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  border-left: 1px solid var(--glass-border-highlight);
  box-shadow:
    inset 1px 0 0 var(--glass-border-highlight-soft),
    -1px 0 0 0 var(--glass-border-shadow),
    -12px 0 24px rgba(0,0,0,0.18),
    var(--shadow-card);
  transform: translateX(100%);
  transition: transform var(--transition-fast) var(--ease-glass);
}

#chat-panel.open {
  transform: translateX(0);
}

/* === Chat Header === */
.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  border-bottom: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.chat-header .panel-title {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.6px;
  color: var(--text-muted);
}

.chat-header .panel-title svg {
  opacity: 0.6;
}

.chat-close-btn {
  opacity: 0.6;
  transition: opacity var(--transition-fast) var(--ease-glass);
}

.chat-close-btn:hover {
  opacity: 1;
}

/* === Chat Messages Area === */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.15) transparent;
}

.chat-messages::-webkit-scrollbar {
  width: 4px;
}

.chat-messages::-webkit-scrollbar-track {
  background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
}

/* === Individual Messages === */
.chat-msg {
  display: flex;
  flex-direction: column;
  padding: 6px 8px;
  border-radius: 8px;
  transition: background var(--transition-fast) var(--ease-glass);
  animation: none;
}

.chat-msg:hover {
  background: rgba(255, 255, 255, 0.05);
}

.chat-msg-new {
  animation: chatMsgIn 0.25s var(--ease-glass);
}

.chat-msg-error {
  color: #e74c3c;
}

.chat-msg-sender {
  font-size: 12px;
  font-weight: 600;
}

.chat-msg-time {
  font-size: 10px;
  opacity: 0.4;
  margin-left: 6px;
}

.chat-msg-sender,
.chat-msg-time {
  display: inline;
}

.chat-msg-text {
  font-size: 13px;
  line-height: 1.4;
  word-break: break-word;
  margin-top: 2px;
}

/* === Chat Input Row === */
.chat-input-row {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  border-top: 1px solid var(--glass-border);
  flex-shrink: 0;
}

.chat-input {
  flex: 1;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  padding: 8px 10px;
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition-fast) var(--ease-glass);
  font-family: inherit;
}

.chat-input:focus {
  border-color: var(--accent-color, #5dade2);
}

.chat-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.5;
}

.chat-send-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  border-radius: 6px;
  color: var(--text-primary);
  cursor: pointer;
  transition: background var(--transition-fast) var(--ease-glass), color var(--transition-fast) var(--ease-glass);
  flex-shrink: 0;
}

.chat-send-btn:hover {
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent-color, #5dade2);
}

.chat-send-btn:active {
  transform: scale(0.92);
}

/* === Animation === */
@keyframes chatMsgIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* === Inline Username Bar (shown above input if no name set) === */
.chat-username-bar {
  display: none;
  flex-direction: column;
  gap: 6px;
  padding: 8px 12px;
  border-top: 1px solid var(--glass-border);
  background: rgba(255, 255, 255, 0.03);
  flex-shrink: 0;
}

.chat-username-prompt {
  font-size: 11px;
  font-weight: 500;
  color: var(--text-muted);
  line-height: 1.35;
}

.chat-username-prompt em {
  font-style: normal;
  opacity: 0.75;
}

.chat-username-row {
  display: flex;
  align-items: center;
  gap: 6px;
}

.chat-username-input {
  flex: 1;
  min-width: 0;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 13px;
  color: var(--text-primary);
  outline: none;
  font-family: inherit;
  transition: border-color var(--transition-fast) var(--ease-glass);
}

.chat-username-input:focus {
  border-color: var(--accent-color, #5dade2);
}

.chat-username-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.5;
}

.chat-username-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 6px 12px;
  background: var(--accent-btn-fill);
  color: var(--accent-btn-text);
  border: 1px solid var(--accent-btn-border);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  backdrop-filter: blur(var(--glass-blur-sm)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur-sm)) saturate(var(--glass-saturate));
  box-shadow:
    inset 0 1px 0 var(--glass-border-highlight),
    0 0 0 1px var(--glass-border-shadow),
    0 0 8px var(--glass-edge-glow),
    var(--shadow-button);
  transition: background var(--transition-fast) var(--ease-glass), border-color var(--transition-fast) var(--ease-glass);
}

.chat-username-submit:hover {
  background: var(--accent-btn-fill-hover);
  border-color: var(--accent-btn-border-hover);
}

.chat-username-skip {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  padding: 6px 10px;
  background-image: var(--glass-btn-fill);
  color: var(--text-primary);
  border: 1px solid var(--glass-border-highlight-soft);
  border-radius: var(--radius-sm);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  backdrop-filter: blur(var(--glass-blur-sm)) saturate(var(--glass-saturate));
  -webkit-backdrop-filter: blur(var(--glass-blur-sm)) saturate(var(--glass-saturate));
  box-shadow:
    inset 0 1px 0 var(--glass-border-highlight),
    0 0 0 1px var(--glass-border-shadow),
    var(--shadow-button);
  transition: background var(--transition-fast) var(--ease-glass), border-color var(--transition-fast) var(--ease-glass);
}

.chat-username-skip:hover {
  background-image: linear-gradient(180deg, rgba(255, 255, 255, 0.16) 0%, rgba(255, 255, 255, 0.05) 55%);
  border-color: var(--glass-border-highlight);
}

/* Ensure toggle button is positioned for the badge */
#chat-toggle-btn {
  position: relative;
}

/* === Mobile adjustments === */
@media (max-width: 767px) {
  #chat-panel {
    width: 100vw;
    border-left: none;
  }
}