#workspace .section-nav {
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

#workspace .section-tab {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 0 11px;
  border: 1px solid #d5deea;
  border-radius: 7px;
  background: #edf2f8;
  color: #354258;
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
  transition: background-color .15s ease, border-color .15s ease, color .15s ease, box-shadow .15s ease;
}

#workspace .section-tab:hover {
  border-color: #b8c7dc;
  background: #e1eaf5;
  color: #1e3a5f;
  text-decoration: none;
}

#workspace .section-tab.is-active {
  border-color: #93b4ed;
  background: #d8e7ff;
  color: #174a9c;
  box-shadow: 0 1px 2px rgba(37, 99, 235, .12);
}

#workspace .section-tab:focus-visible,
#workspace #composer input:focus-visible,
#workspace #composer textarea:focus-visible,
#workspace #composer button:focus-visible {
  outline: 2px solid #7dd3fc;
  outline-offset: 2px;
}

#workspace .section-count {
  display: inline-flex;
  min-width: 18px;
  height: 18px;
  align-items: center;
  justify-content: center;
  padding: 0 5px;
  border-radius: 999px;
  background: #dce4ef;
  color: inherit;
  font-size: 10px;
  line-height: 1;
}

#workspace .section-tab.is-active .section-count {
  background: #c4d9fb;
}

#workspace #chat-block .chat-heading {
  display: flex;
  min-height: 42px;
  align-items: center;
  padding: 8px 12px;
  border-bottom: 1px solid #1e293b;
  background: #22242a;
  color: #eaf0ff;
}

#workspace main.viewer-three-up {
  --g: 6px;
  row-gap: 8px;
}

#workspace main.viewer-three-up #chat-block,
#workspace main.viewer-three-up #video-panel,
#workspace main.viewer-three-up #watch-panel {
  border: 1px solid #1e293b;
  border-radius: 10px;
  overflow: hidden;
}

#workspace main.viewer-three-up > .gutter {
  visibility: hidden;
}

#workspace main.viewer-three-up .video-room-column {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  gap: 8px;
  grid-area: v-chat;
}

#workspace main.viewer-two-up .video-room-column {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  gap: 8px;
  grid-area: video;
}

#workspace main.viewer-three-up .video-room-column #video-panel,
#workspace main.viewer-two-up .video-room-column #video-panel {
  min-width: 0;
  flex: 1 1 auto;
  grid-area: auto;
}

#workspace .private-room-quickjump {
  flex: 0 0 auto;
  min-width: 0;
  padding: 10px;
  border: 1px solid #dbe1ea;
  border-radius: 10px;
  background: #f8f9fa;
  color: #202b3d;
}

#workspace .private-room-quickjump__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

#workspace .private-room-quickjump__copy {
  min-width: 0;
}

#workspace .private-room-quickjump__copy h3 {
  margin: 0 0 2px;
  color: #273449;
  font-size: 13px;
}

#workspace .private-room-quickjump__copy p {
  margin: 0;
  color: #6b778b;
  font-size: 11px;
}

#workspace .private-room-quickjump__form {
  flex: 0 1 560px;
  min-width: 220px;
  margin: 0;
}

#workspace .private-room-quickjump .input-group {
  flex-wrap: nowrap;
}

#workspace #chat-block .chat-heading > div {
  display: flex;
  min-width: 0;
  align-items: baseline;
  gap: 8px;
}

#workspace #chat-block .chat-heading strong {
  color: #eaf0ff;
  font-size: 13px;
  font-weight: 700;
}

#workspace #chat-block .chat-heading span {
  overflow: hidden;
  color: #a9b6d2;
  font-size: 11px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

#workspace #chat-block #log.chat-log {
  display: flex;
  min-height: 0;
  flex: 1 1 auto;
  flex-direction: column;
  gap: 10px;
  padding: 12px;
  background: #fff;
  color: #172033;
  font-family: inherit;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
  scroll-behavior: smooth;
}

#workspace #chat-block .chat-line {
  display: flex;
  width: fit-content;
  max-width: min(92%, 680px);
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  margin: 0;
  animation: chat-message-in .16s ease-out both;
}

#workspace #chat-block .chat-message-meta {
  display: flex;
  align-items: baseline;
  gap: 7px;
  padding: 0 3px;
}

#workspace #chat-block .chat-sender {
  color: #273449;
  font-size: 11px;
  font-weight: 700;
}

#workspace #chat-block .chat-time {
  color: #778398;
  font-size: 10px;
  font-variant-numeric: tabular-nums;
}

#workspace #chat-block .chat-body {
  max-width: 100%;
  padding: 8px 11px;
  border: 1px solid #dbe1ea;
  border-radius: 4px 12px 12px;
  background: #f3f5f8;
  color: #202b3d;
  font-size: 13px;
  line-height: 1.5;
  overflow-wrap: anywhere;
  white-space: pre-wrap;
}

#workspace #chat-block .chat-line-outgoing {
  align-items: flex-end;
  margin-left: auto;
}

#workspace #chat-block .chat-line-outgoing .chat-body {
  border-color: #2563eb;
  border-radius: 12px 4px 12px 12px;
  background: #2563eb;
  color: #fff;
}

#workspace #chat-block .chat-line-outgoing .chat-sender,
#workspace #chat-block .chat-line-outgoing .chat-time {
  color: #778398;
}

#workspace #chat-block .chat-line.pending .chat-body {
  opacity: .72;
}

#workspace #chat-block .chat-empty {
  display: flex;
  min-height: 140px;
  flex: 1 1 auto;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  color: #6b778b;
  text-align: center;
}

#workspace #chat-block .chat-empty strong {
  color: #273449;
  font-size: 13px;
}

#workspace #chat-block .chat-empty-icon {
  display: grid;
  width: 32px;
  height: 32px;
  place-items: center;
  margin-bottom: 3px;
  border: 1px solid #dbe1ea;
  border-radius: 10px;
  background: #f3f5f8;
  color: #2563eb;
  font-size: 16px;
}

#workspace #chat-block > .toolbar {
  padding: 10px;
  border-top: 1px solid #d8dee8;
  border-bottom: 0;
  background: #f7f8fa;
}

#workspace #composer {
  gap: 0;
}

#workspace #composer > div {
  grid-template-columns: minmax(0, .7fr) minmax(0, 1.75fr) auto !important;
  gap: 7px;
}

#workspace #composer label {
  min-width: 0;
}

#workspace #composer input[type="text"],
#workspace #composer textarea {
  width: 100%;
  min-width: 0;
  min-height: 40px;
  border: 1px solid #cbd3df;
  border-radius: 8px;
  background: #fff;
  color: #202b3d;
  font: inherit;
  font-size: 12px;
  box-sizing: border-box;
  transition: border-color .15s ease, box-shadow .15s ease;
}

#workspace #composer input[type="text"] {
  padding: 9px 10px;
}

#workspace #composer textarea {
  max-height: 140px;
  padding: 8px 10px;
  resize: vertical;
}

#workspace #composer input::placeholder,
#workspace #composer textarea::placeholder {
  color: #7a8799;
  opacity: 1;
}

#workspace #composer input:focus,
#workspace #composer textarea:focus {
  border-color: #2563eb;
  box-shadow: 0 0 0 3px rgba(37, 99, 235, .12);
  outline: none;
}

#workspace #composer .chat-send {
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid #2563eb;
  border-radius: 8px;
  background: #2563eb;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  transition: background-color .15s ease, transform .15s ease;
}

#workspace #composer .chat-send:hover {
  background: #1d4ed8;
}

#workspace #composer .chat-send:active {
  transform: translateY(1px);
}

html[data-theme="dark"] #workspace #chat-block #log.chat-log {
  background: #0f1730;
  color: #eaf0ff;
}

html[data-theme="dark"] #workspace #chat-block .chat-sender,
html[data-theme="dark"] #workspace #chat-block .chat-empty strong {
  color: #eaf0ff;
}

html[data-theme="dark"] #workspace #chat-block .chat-time,
html[data-theme="dark"] #workspace #chat-block .chat-line-outgoing .chat-sender,
html[data-theme="dark"] #workspace #chat-block .chat-line-outgoing .chat-time {
  color: #a9b6d2;
}

html[data-theme="dark"] #workspace #chat-block .chat-body {
  border-color: #303d58;
  background: #18233a;
  color: #eaf0ff;
}

html[data-theme="dark"] #workspace #chat-block .chat-line-outgoing .chat-body {
  border-color: #4760ff;
  background: #4760ff;
  color: #fff;
}

html[data-theme="dark"] #workspace #chat-block .chat-empty {
  color: #a9b6d2;
}

html[data-theme="dark"] #workspace #chat-block .chat-empty-icon {
  border-color: #303d58;
  background: #18233a;
  color: #8ab4ff;
}

html[data-theme="dark"] #workspace #chat-block > .toolbar {
  border-top-color: #303d58;
  background: #151d31;
}

html[data-theme="dark"] #workspace #composer input[type="text"],
html[data-theme="dark"] #workspace #composer textarea {
  border-color: #394761;
  background: #0b1220;
  color: #eaf0ff;
}

html[data-theme="dark"] #workspace #composer input::placeholder,
html[data-theme="dark"] #workspace #composer textarea::placeholder {
  color: #a9b6d2;
}

@keyframes chat-message-in {
  from { opacity: 0; transform: translateY(3px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  #workspace .section-tab,
  #workspace #composer input[type="text"],
  #workspace #composer textarea,
  #workspace #composer .chat-send {
    transition: none;
  }

  #workspace #chat-block .chat-line {
    animation: none;
  }

  #workspace #chat-block #log.chat-log {
    scroll-behavior: auto;
  }
}

@media (max-width: 740px) {
  #workspace #viewer-inner-toolbar .section-nav {
    width: 100%;
    flex: 0 0 100%;
  }

  #workspace #viewer-inner-toolbar .section-tab {
    flex: 1 1 0;
  }

  #workspace #chat-block .chat-heading > div {
    flex-wrap: wrap;
    gap: 2px 8px;
  }

  #workspace #chat-block #log.chat-log {
    padding: 10px;
  }

  #workspace #composer > div,
  #workspace.viewer-three-up #composer > div {
    grid-template-columns: minmax(0, 1fr) auto !important;
  }

  #workspace #composer label:first-of-type {
    grid-column: 1 / -1;
  }

  #workspace #chat-block .chat-line {
    max-width: 96%;
  }
}

@media (max-width: 640px) {
  #workspace .private-room-quickjump__inner {
    align-items: stretch;
    flex-direction: column;
    gap: 8px;
  }

  #workspace .private-room-quickjump__form {
    flex: 0 1 auto;
    min-width: 0;
  }
}