.chat-area {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 900px;
  margin: 0 auto;
  padding: 0.75rem;
  box-sizing: border-box;
}

.chat-header {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  margin-bottom: 0.6rem;
  border-radius: 16px;
  background: rgba(245, 240, 230, 0.06);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(245, 240, 230, 0.1);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  min-width: 0;
}

.chat-title {
  flex-shrink: 0;
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.15em;
}

.chat-model-row {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.4rem;
  flex: 1;
  min-width: 0;
}

.chat-model-btn {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  max-width: 140px;
  padding: 0.4rem 0.65rem;
  font-size: 0.8rem;
  color: var(--text-primary);
  background: rgba(12, 15, 10, 0.5);
  border: 1px solid rgba(245, 240, 230, 0.15);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
  white-space: nowrap;
  overflow: hidden;
}

.chat-model-btn:hover {
  border-color: rgba(245, 240, 230, 0.35);
  background: rgba(245, 240, 230, 0.08);
}

.chat-model-btn svg,
.chat-icon-btn svg,
.chat-send svg {
  flex-shrink: 0;
  pointer-events: none;
}

#chatModelText {
  overflow: hidden;
  text-overflow: ellipsis;
}

.chat-model-menu {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.96);
  display: flex;
  flex-direction: column;
  width: min(360px, 92vw);
  max-height: min(560px, 72vh);
  padding: 0;
  border-radius: 22px;
  background: rgba(18, 22, 16, 0.98);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(245, 240, 230, 0.16);
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s var(--ease-brush);
  z-index: 100000;
  pointer-events: none;
  overscroll-behavior: contain;
}

.chat-model-menu.open {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.chat-model-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 99999;
  pointer-events: none;
}

.chat-model-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.chat-model-menu-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.1rem 0.75rem;
  border-bottom: 1px solid rgba(245, 240, 230, 0.08);
  flex-shrink: 0;
}

.chat-model-menu-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-primary);
}

.chat-model-close,
.chat-settings-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  font-size: 1.25rem;
  line-height: 1;
  color: var(--text-muted);
  background: rgba(245, 240, 230, 0.06);
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chat-model-close:hover,
.chat-settings-close:hover {
  color: var(--text-primary);
  background: rgba(245, 240, 230, 0.12);
}

.chat-model-list {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0.6rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(245, 240, 230, 0.12) transparent;
}

.chat-model-list::-webkit-scrollbar {
  width: 5px;
}

.chat-model-list::-webkit-scrollbar-thumb {
  background: rgba(245, 240, 230, 0.15);
  border-radius: 3px;
}

.chat-model-item {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  width: 100%;
  padding: 0.7rem 0.85rem;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  text-align: left;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.chat-model-item:last-child {
  margin-bottom: 0;
}

.chat-model-item:hover {
  background: rgba(245, 240, 230, 0.07);
}

.chat-model-item.active {
  background: rgba(116, 137, 168, 0.2);
  border-color: rgba(116, 137, 168, 0.35);
}

.chat-model-item-main {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  width: 100%;
}

.chat-model-icon {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
}

.chat-model-icon svg {
  display: block;
  width: 100%;
  height: 100%;
}

.chat-model-name {
  font-weight: 500;
}

.chat-model-id {
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  padding-left: calc(18px + 0.55rem);
}

.chat-icon-btn {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  color: var(--text-primary);
  background: rgba(12, 15, 10, 0.4);
  border: 1px solid rgba(245, 240, 230, 0.15);
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chat-icon-btn:hover {
  background: rgba(245, 240, 230, 0.1);
  border-color: rgba(245, 240, 230, 0.3);
}

.chat-messages {
  flex: 1;
  min-height: 0;
  overflow-y: auto;
  padding: 0.9rem;
  border-radius: 18px;
  background: rgba(245, 240, 230, 0.04);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(245, 240, 230, 0.08);
  box-shadow: inset 0 0 40px rgba(0, 0, 0, 0.15);
  margin-bottom: 0.6rem;
}

.chat-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  color: var(--text-muted);
  text-align: center;
}

.chat-empty-title {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.chat-empty-sub {
  font-size: 0.9rem;
}

.chat-message {
  display: flex;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  animation: messageIn 0.35s ease both;
}

@keyframes messageIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.chat-message-user {
  flex-direction: row-reverse;
}

.chat-avatar {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, var(--accent-cinnabar), #c45a4a);
  box-shadow: 0 4px 12px rgba(222, 105, 84, 0.25);
}

.chat-message-user .chat-avatar {
  background: linear-gradient(135deg, var(--accent-indigo), #5a6e8a);
  box-shadow: 0 4px 12px rgba(116, 137, 168, 0.25);
}

.chat-bubble {
  max-width: min(78%, 680px);
  padding: 0.85rem 1.1rem;
  border-radius: 18px;
  line-height: 1.7;
  font-size: 0.95rem;
  color: var(--text-primary);
  background: rgba(245, 240, 230, 0.1);
  border: 1px solid rgba(245, 240, 230, 0.12);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.chat-message-user .chat-bubble {
  background: rgba(116, 137, 168, 0.18);
  border-color: rgba(116, 137, 168, 0.22);
}

.chat-text {
  white-space: pre-wrap;
  word-break: break-word;
}

.chat-cursor {
  display: inline-block;
  width: 6px;
  height: 1em;
  margin-left: 2px;
  vertical-align: middle;
  background: var(--accent-cinnabar);
  border-radius: 2px;
  animation: blink 1s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.chat-system {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.8rem;
  margin: 0.75rem 0;
}

.chat-input-area {
  flex-shrink: 0;
  position: relative;
  z-index: 20;
}

.chat-input-wrap {
  display: flex;
  align-items: flex-end;
  gap: 0.5rem;
  padding: 0.55rem 0.7rem;
  border-radius: 18px;
  background: rgba(245, 240, 230, 0.07);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(245, 240, 230, 0.12);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.chat-input-wrap input,
.chat-input-wrap textarea {
  flex: 1;
  min-width: 0;
  padding: 0.45rem 0.25rem;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--text-primary);
  background: transparent;
  border: none;
  outline: none;
  -webkit-user-select: text;
  user-select: text;
  -webkit-touch-callout: default;
  caret-color: var(--accent-cinnabar);
}

.chat-input-wrap input::placeholder,
.chat-input-wrap textarea::placeholder {
  color: var(--text-muted);
}

.chat-send {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  color: #fff;
  background: var(--accent-cinnabar);
  border: none;
  border-radius: 12px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 4px 14px rgba(222, 105, 84, 0.35);
}

.chat-send:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(222, 105, 84, 0.45);
}

.chat-send:active {
  transform: scale(0.95);
}

.chat-hint {
  text-align: center;
  margin-top: 0.4rem;
  font-size: 0.7rem;
  color: var(--text-muted);
  opacity: 0.7;
}

.chat-settings-panel {
  position: fixed;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.96);
  width: min(340px, 92vw);
  padding: 0;
  border-radius: 22px;
  background: rgba(18, 22, 16, 0.98);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  border: 1px solid rgba(245, 240, 230, 0.16);
  box-shadow: 0 32px 90px rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s var(--ease-brush);
  z-index: 100000;
  pointer-events: none;
}

.chat-settings-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translate(-50%, -50%) scale(1);
  pointer-events: auto;
}

.chat-settings-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all 0.25s ease;
  z-index: 99999;
  pointer-events: none;
}

.chat-settings-overlay.open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.chat-settings-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.1rem 0.75rem;
  border-bottom: 1px solid rgba(245, 240, 230, 0.08);
}

.chat-settings-title {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--text-primary);
}

.chat-settings-body {
  padding: 1.1rem;
}

.settings-row {
  margin-bottom: 1.1rem;
}

.settings-row:last-child {
  margin-bottom: 0;
}

.settings-row label {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.82rem;
  color: var(--text-muted);
}

.settings-row input[type="range"] {
  width: 100%;
  accent-color: var(--accent-cinnabar);
}

.settings-row input[type="number"] {
  width: 100%;
  padding: 0.55rem 0.85rem;
  font-size: 0.9rem;
  color: var(--text-primary);
  background: rgba(245, 240, 230, 0.06);
  border: 1px solid rgba(245, 240, 230, 0.12);
  border-radius: 10px;
  outline: none;
}

#chatTempVal {
  display: inline-block;
  margin-left: 0.5rem;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
}

.settings-row-inline {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.settings-toggle-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  color: var(--text-primary);
  font-size: 0.9rem;
}

.settings-toggle {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
  flex-shrink: 0;
}

.settings-toggle input {
  opacity: 0;
  width: 0;
  height: 0;
}

.settings-toggle-track {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: rgba(245, 240, 230, 0.15);
  border-radius: 24px;
  transition: 0.3s;
}

.settings-toggle-track:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  border-radius: 50%;
  transition: 0.3s;
}

.settings-toggle input:checked + .settings-toggle-track {
  background-color: var(--accent-cinnabar);
}

.settings-toggle input:checked + .settings-toggle-track:before {
  transform: translateX(20px);
}

.settings-hint {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin: 0;
}

.chat-secondary-btn {
  width: 100%;
  padding: 0.7rem;
  font-size: 0.85rem;
  color: var(--text-primary);
  background: rgba(245, 240, 230, 0.08);
  border: 1px solid rgba(245, 240, 230, 0.15);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}

.chat-secondary-btn:hover {
  background: rgba(222, 105, 84, 0.15);
  border-color: rgba(222, 105, 84, 0.35);
}

.social-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

@media (max-width: 768px) {
  .social-layout {
    grid-template-columns: 1fr;
  }

  .page-chat {
    top: 50px;
  }

  .chat-area {
    padding: 0.6rem;
  }

  .chat-header {
    padding: 0.6rem 0.75rem;
  }

  .chat-title {
    font-size: 1rem;
  }

  .chat-model-btn {
    max-width: 120px;
    font-size: 0.75rem;
    padding: 0.35rem 0.55rem;
  }

  .chat-icon-btn {
    width: 32px;
    height: 32px;
  }

  .chat-bubble {
    max-width: 84%;
    font-size: 0.9rem;
  }

  .chat-model-menu,
  .chat-settings-panel {
    width: min(340px, 92vw);
  }
}

.page-social {
  min-height: calc(100vh - var(--nav-height, 80px));
}