/**
 * GC topics rail — premium glass pixel-perfect cards
 * Scoped under .col-dialogs--gc-topics / .gc-topics-rail
 * Overrides legacy .gc-topic-item / .dialog-item geometry without changing tokens elsewhere.
 */

/* ===== Mode isolation: never show topics chrome in normal chats rail ===== */
.col-dialogs:not(.col-dialogs--gc-topics) #gcTopicsRail,
.col-dialogs:not(.col-dialogs--gc-topics) .gc-topics-rail,
.col-dialogs:not(.col-dialogs--gc-topics) .gc-topics-rail-top,
.col-dialogs:not(.col-dialogs--gc-topics) .gc-topics-rail-body,
.col-dialogs:not(.col-dialogs--gc-topics) .gc-topics-back-btn,
.col-dialogs:not(.col-dialogs--gc-topics) .gc-topics-search,
.col-dialogs:not(.col-dialogs--gc-topics) .gc-topics-list,
.col-dialogs:not(.col-dialogs--gc-topics) .gc-topics-add-btn,
.gc-topics-rail.hidden,
#gcTopicsRail.hidden {
  display: none !important;
}

/* ===== Shared header with normal Chats rail =====
   In topics mode hide normal filters/search chrome; keep only the title. */
@media (min-width: 921px) {
  .messenger-shell:has(.col-dialogs--gc-topics) {
    grid-template-columns: minmax(220px, 260px) 304px minmax(0, 1fr);
  }

  .messenger-shell.profile-open:has(.col-dialogs--gc-topics) {
    grid-template-columns: minmax(200px, 240px) 304px minmax(0, 1fr);
  }

  .col-dialogs.panel-card.col-dialogs--gc-topics {
    width: 304px;
    min-width: 304px;
    max-width: 304px;
  }

  .col-dialogs--gc-topics .dialogs-scroll-strip {
    overflow: hidden;
    display: flex;
    flex-direction: column;
    min-height: 0;
    background: transparent;
  }
}

/* Hide normal chats chrome only in topics mode — keep DOM nodes intact */
.col-dialogs--gc-topics #profileTabsWrap,
.col-dialogs--gc-topics .profile-tabs-wrap,
.col-dialogs--gc-topics .profile-tabs,
.col-dialogs--gc-topics .dialogs-filter-pills,
.col-dialogs--gc-topics #dialogsRailSearchWrap,
.col-dialogs--gc-topics .dialogs-rail-search-wrap,
.col-dialogs--gc-topics .profile-tab-panels--aux,
.col-dialogs--gc-topics #oloneMobileFabGroupChat,
.col-dialogs--gc-topics #oloneMobileFabChannel {
  display: none !important;
}

.col-dialogs--gc-topics .dialogs-nav-sticky {
  min-height: auto;
  padding-bottom: 0;
  margin-bottom: 0;
  gap: 0;
}

.col-dialogs--gc-topics .dialogs-scroll-strip {
  padding-top: 0;
  margin-top: 0;
}

.col-dialogs--gc-topics .dialogs-nav-sticky::after,
.col-dialogs--gc-topics .dialogs-col-title::before,
.col-dialogs--gc-topics .dialogs-col-title::after,
.col-dialogs--gc-topics .dialogs-col-title--gc-topics::before,
.col-dialogs--gc-topics .dialogs-col-title--gc-topics::after {
  content: none !important;
  display: none !important;
}

.col-dialogs--gc-topics .dialogs-col-title,
.col-dialogs--gc-topics .dialogs-col-title--gc-topics,
.col-dialogs--gc-topics .panel-head.dialogs-col-title,
[data-theme="dark"] .col-dialogs.col-dialogs--gc-topics .dialogs-col-title,
[data-theme="light"] .col-dialogs.col-dialogs--gc-topics .dialogs-col-title {
  width: 100%;
  max-width: 100%;
  margin: 0 0 22px;
  padding: 12px 0 0;
  padding-right: 0;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
  background: none;
  background-image: none;
  -webkit-background-clip: border-box;
  background-clip: border-box;
  -webkit-text-fill-color: currentColor;
  color: inherit;
}

.col-dialogs--gc-topics #gcTopicsRail,
.col-dialogs--gc-topics .gc-topics-rail {
  margin-top: 0;
  padding-top: 0;
  top: auto;
  min-height: 0;
  transition: opacity 0.18s ease, transform 0.18s ease;
}

.col-dialogs--gc-topics .gc-topics-rail:not(.hidden):not([hidden]) {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Topics rail shell (topics mode only) ===== */
.col-dialogs--gc-topics #groupChatsRailWrap.group-chats-rail-wrap--topics,
.col-dialogs--gc-topics .gc-topics-rail:not(.hidden):not([hidden]) {
  display: flex;
  flex-direction: column;
  flex: 1 1 auto;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
}

.col-dialogs--gc-topics .gc-topics-back-btn {
  display: flex;
}

.col-dialogs--gc-topics .gc-topics-search {
  display: block;
}

.col-dialogs--gc-topics .gc-topics-list {
  display: flex;
}

.col-dialogs--gc-topics .gc-topics-add-btn:not(.hidden) {
  display: flex;
  align-items: center;
  justify-content: center;
}

.col-dialogs--gc-topics .gc-topics-rail-top {
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  gap: 0;
  padding: 0;
  background: transparent;
  border: none;
}

.col-dialogs--gc-topics .gc-topics-rail-head {
  padding: 0;
}

.col-dialogs--gc-topics .gc-topics-back-btn {
  width: 100%;
  height: 40px;
  padding: 0 13px;
  margin: 0 0 8px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-radius: 12px;
  border: 1px solid rgba(130, 160, 220, 0.07);
  background: rgba(255, 255, 255, 0.025);
  color: rgba(255, 255, 255, 0.92);
  font-size: 13px;
  font-weight: 650;
  box-sizing: border-box;
  cursor: pointer;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.col-dialogs--gc-topics .gc-topics-back-btn:hover {
  background: rgba(80, 120, 255, 0.12);
  border-color: rgba(110, 150, 230, 0.18);
  transform: none;
}

.col-dialogs--gc-topics .gc-topics-back-icon {
  display: inline-flex;
  width: 16px;
  height: 16px;
  opacity: 0.9;
}

.col-dialogs--gc-topics .gc-topics-back-icon svg {
  display: block;
  width: 16px;
  height: 16px;
}

.col-dialogs--gc-topics .gc-topics-rail-search-wrap {
  padding: 0;
  margin: 0;
}

.col-dialogs--gc-topics .gc-topics-search {
  width: 100%;
  height: 40px;
  margin: 0 0 14px;
  padding: 0 12px;
  border-radius: 11px;
  border: 1px solid rgba(130, 160, 220, 0.07);
  background: rgba(6, 10, 17, 0.48);
  color: #fff;
  font-size: 13px;
  line-height: 40px;
  box-sizing: border-box;
}

.col-dialogs--gc-topics .gc-topics-search::placeholder {
  color: #7f899e;
}

/* Body: list scrolls; create button stays below as footer */
.col-dialogs--gc-topics .gc-topics-rail-body {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  justify-content: flex-start;
  padding: 0;
  box-sizing: border-box;
}

.col-dialogs--gc-topics .gc-topics-list {
  flex: 1 1 auto;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overflow-x: hidden;
  overflow-y: auto;
  padding: 0 4px 10px;
  margin: 0 -4px;
  scrollbar-width: thin;
}

.col-dialogs--gc-topics .gc-topics-list .dialog-item,
.col-dialogs--gc-topics .gc-topics-list .dialog-row,
.col-dialogs--gc-topics .gc-topics-list .chat-list-item {
  all: unset;
}

/* ===== Topic cards =====
   Cascade isolate from .dialog-item / .avatar / rail-avatar global rules,
   then re-apply glass card layout (full restore lives also in gc-voice-channel.css hotfix). */
.col-dialogs--gc-topics .topic-item,
.col-dialogs--gc-topics .gc-topic-item.topic-item {
  all: unset;
  box-sizing: border-box;
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  column-gap: 12px;
  width: 100%;
  height: 74px;
  min-height: 74px;
  max-height: 74px;
  margin: 0;
  padding: 12px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(30, 39, 58, 0.48), rgba(18, 25, 38, 0.34));
  border: 1px solid rgba(130, 160, 220, 0.08);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.015);
  color: #fff;
  text-align: left;
  cursor: pointer;
  overflow: hidden;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
  -webkit-appearance: none;
  appearance: none;
}

.col-dialogs--gc-topics .topic-item:hover,
.col-dialogs--gc-topics .gc-topic-item.topic-item:hover {
  transform: translateY(-1px);
  background: linear-gradient(135deg, rgba(38, 49, 72, 0.58), rgba(20, 28, 43, 0.46));
  border-color: rgba(110, 150, 230, 0.16);
}

.col-dialogs--gc-topics .topic-item--active::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 40px;
  border-radius: 3px;
  background: #68a0ff;
}

.col-dialogs--gc-topics .topic-item--text.topic-item--active,
.col-dialogs--gc-topics .gc-topic-item--text.topic-item--active {
  background: linear-gradient(135deg, rgba(43, 67, 116, 0.5), rgba(28, 43, 73, 0.58));
  border: 1px solid rgba(91, 145, 255, 0.7);
  box-shadow: 0 0 16px rgba(50, 105, 225, 0.18);
  padding-left: 12px;
}

.col-dialogs--gc-topics .topic-item--voice,
.col-dialogs--gc-topics .gc-topic-item--voice.topic-item--voice {
  height: 76px;
  min-height: 76px;
  max-height: 76px;
}

.col-dialogs--gc-topics .topic-item--voice.topic-item--active,
.col-dialogs--gc-topics .gc-topic-item--voice.topic-item--active {
  background: linear-gradient(135deg, rgba(43, 76, 151, 0.54), rgba(24, 40, 83, 0.7));
  border: 1px solid rgba(72, 130, 255, 0.95);
  box-shadow:
    0 0 0 1px rgba(52, 110, 235, 0.15),
    0 0 24px rgba(48, 112, 255, 0.33),
    inset 0 1px 0 rgba(255, 255, 255, 0.05);
  padding-left: 12px;
}

.col-dialogs--gc-topics .topic-item--voice:hover,
.col-dialogs--gc-topics .gc-topic-item--voice.topic-item--voice:hover {
  border-color: rgba(110, 155, 255, 0.4);
  box-shadow: 0 0 14px rgba(80, 140, 255, 0.2);
}

.col-dialogs--gc-topics .topic-item__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  box-sizing: border-box;
}

.col-dialogs--gc-topics .topic-item__icon--text {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: linear-gradient(145deg, rgba(76, 93, 137, 0.3), rgba(38, 48, 75, 0.24));
  border: 1px solid rgba(130, 160, 230, 0.18);
  color: #e6eaff;
}

.col-dialogs--gc-topics .topic-item__icon--text svg {
  display: block;
  width: 21px;
  height: 21px;
  max-width: 21px;
  max-height: 21px;
  stroke: #e6eaff;
  stroke-width: 1.8;
  flex-shrink: 0;
}

.col-dialogs--gc-topics .topic-item__icon--voice {
  width: 48px;
  height: 48px;
  border-radius: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(145deg, rgba(37, 74, 154, 0.38), rgba(23, 45, 98, 0.24));
  border: 1px solid rgba(77, 128, 235, 0.34);
  color: #82aaff;
}

/* Never let voice-card SVGs inherit the 48px icon box size */
.col-dialogs--gc-topics .topic-item--voice svg {
  width: auto;
  height: auto;
  max-width: 22px;
  max-height: 22px;
}

.col-dialogs--gc-topics .topic-item__icon--voice svg {
  display: block;
  width: 22px;
  height: 22px;
  max-width: 22px;
  max-height: 22px;
  stroke: #82aaff;
  stroke-width: 1.85;
  flex-shrink: 0;
}

.col-dialogs--gc-topics .topic-item--voice.topic-item--active .topic-item__icon--voice {
  border-color: rgba(80, 140, 255, 0.6);
}

.col-dialogs--gc-topics .topic-item__content {
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.col-dialogs--gc-topics .topic-item__title {
  font-size: 15px;
  font-weight: 750;
  line-height: 19px;
  color: #f8faff;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.col-dialogs--gc-topics .topic-item__subtitle {
  margin-top: 3px;
  font-size: 13px;
  font-weight: 500;
  line-height: 17px;
  color: #91a0bb;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.col-dialogs--gc-topics .topic-item__voice-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
  font-size: 13px;
  font-weight: 500;
  color: #8fa1c1;
  min-width: 0;
}

.col-dialogs--gc-topics .topic-item__voice-meta svg {
  display: block;
  width: 13px;
  height: 13px;
  max-width: 13px;
  max-height: 13px;
  flex-shrink: 0;
  stroke: #8fa1c1;
}

.col-dialogs--gc-topics .topic-item__voice-meta span {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.col-dialogs--gc-topics .topic-item__voice-actions {
  width: 46px;
  min-width: 28px;
  height: 48px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  flex-shrink: 0;
}

.col-dialogs--gc-topics .topic-item__trailing {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  flex-shrink: 0;
  min-width: 26px;
}

.col-dialogs--gc-topics .topic-item__settings {
  width: 26px;
  height: 26px;
  padding: 0;
  border: 0;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  opacity: 0.62;
  color: #8994aa;
  cursor: pointer;
  transition: opacity 0.2s ease, background 0.2s ease;
}

.col-dialogs--gc-topics .topic-item__settings svg {
  display: block;
  width: 17px;
  height: 17px;
  max-width: 17px;
  max-height: 17px;
  stroke: #8994aa;
  flex-shrink: 0;
}

.col-dialogs--gc-topics .topic-item__settings:hover {
  opacity: 1;
  background: rgba(255, 255, 255, 0.05);
}

.col-dialogs--gc-topics .topic-item__badge {
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: #397cff;
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: grid;
  place-items: center;
}

.col-dialogs--gc-topics .topic-item__lock {
  display: none;
  margin-left: 4px;
  opacity: 0.7;
}

.col-dialogs--gc-topics .topic-item--closed .topic-item__lock {
  display: inline-flex;
}

/* WebRTC connection quality bars */
.col-dialogs--gc-topics .voice-connection-bars,
.col-dialogs--gc-topics .voice-level-bars.voice-connection-bars {
  width: 22px;
  height: 18px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 3px;
  flex: 0 0 auto;
}

.col-dialogs--gc-topics .voice-connection-bars__bar {
  width: 3px;
  border-radius: 999px;
  background: rgba(100, 115, 145, 0.26);
  box-shadow: none;
  transition:
    height 0.2s ease,
    background-color 0.2s ease,
    opacity 0.2s ease,
    box-shadow 0.2s ease;
}

.col-dialogs--gc-topics .voice-connection-bars__bar:nth-child(1) { height: 6px; }
.col-dialogs--gc-topics .voice-connection-bars__bar:nth-child(2) { height: 11px; }
.col-dialogs--gc-topics .voice-connection-bars__bar:nth-child(3) { height: 17px; }

.col-dialogs--gc-topics .voice-connection-bars--poor .voice-connection-bars__bar:nth-child(1) {
  background: #ff5f67;
  opacity: 1;
  box-shadow: 0 0 7px rgba(255, 95, 103, 0.38);
}

.col-dialogs--gc-topics .voice-connection-bars--poor .voice-connection-bars__bar:nth-child(2),
.col-dialogs--gc-topics .voice-connection-bars--poor .voice-connection-bars__bar:nth-child(3) {
  background: rgba(255, 95, 103, 0.18);
  opacity: 0.42;
  box-shadow: none;
}

.col-dialogs--gc-topics .voice-connection-bars--medium .voice-connection-bars__bar:nth-child(1),
.col-dialogs--gc-topics .voice-connection-bars--medium .voice-connection-bars__bar:nth-child(2) {
  background: #f6c453;
  opacity: 1;
  box-shadow: 0 0 7px rgba(246, 196, 83, 0.34);
}

.col-dialogs--gc-topics .voice-connection-bars--medium .voice-connection-bars__bar:nth-child(3) {
  background: rgba(246, 196, 83, 0.2);
  opacity: 0.42;
  box-shadow: none;
}

.col-dialogs--gc-topics .voice-connection-bars--good .voice-connection-bars__bar {
  background: #38d996;
  opacity: 1;
  box-shadow: 0 0 7px rgba(56, 217, 150, 0.34);
}

.col-dialogs--gc-topics .voice-connection-bars--offline .voice-connection-bars__bar {
  background: rgba(126, 137, 160, 0.24);
  opacity: 0.38;
  box-shadow: none;
}

.col-dialogs--gc-topics .voice-connection-bars--offline .voice-connection-bars__bar:first-child {
  background: rgba(255, 95, 103, 0.52);
  opacity: 0.72;
}

.col-dialogs--gc-topics .voice-connection-bars--checking {
  opacity: 0.58;
  animation: voiceConnectionChecking 1.6s ease-in-out infinite;
}

.col-dialogs--gc-topics .voice-connection-bars--checking .voice-connection-bars__bar {
  background: rgba(100, 115, 145, 0.26);
  opacity: 0.55;
  box-shadow: none;
}

.col-dialogs--gc-topics .voice-connection-bars--hidden {
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  animation: none;
}

@keyframes voiceConnectionChecking {
  0%,
  100% { opacity: 0.42; }
  50% { opacity: 0.76; }
}

/* Neutralize legacy row geometry / icon masks inside topics mode */
.col-dialogs--gc-topics .gc-topic-item.topic-item {
  display: grid;
  flex-direction: unset;
  gap: unset;
  transform: none;
}

.col-dialogs--gc-topics .gc-topic-item.topic-item:hover {
  transform: translateY(-1px);
}

.col-dialogs--gc-topics .gc-topic-item--active:not(.topic-item--active) {
  box-shadow: none;
  padding-left: 12px;
}

.col-dialogs--gc-topics .gc-topic-item--voice .gc-topic-item__icon,
.col-dialogs--gc-topics .gc-topic-item--text .gc-topic-item__icon,
.col-dialogs--gc-topics .gc-topic-item--text .gc-topic-item__icon::before,
.col-dialogs--gc-topics .gc-topic-item--voice .gc-topic-item__icon::before,
.col-dialogs--gc-topics .gc-topic-item__voice-wave:not(.voice-level-bars):not(.voice-connection-bars),
.col-dialogs--gc-topics .gc-topic-item__gear,
.col-dialogs--gc-topics .gc-topic-item__body,
.col-dialogs--gc-topics .gc-topic-item__trailing {
  display: none;
}

/* Create button — after list, not pinned to bottom */
.col-dialogs--gc-topics .gc-topics-add-btn {
  flex: 0 0 auto;
  margin: 12px 0 0;
  height: 56px;
  min-height: 56px;
  width: 100%;
  padding: 0 14px;
  border-radius: 18px;
  border: 1px dashed rgba(100, 150, 255, 0.24);
  background: linear-gradient(135deg, rgba(40, 61, 104, 0.08), rgba(20, 31, 53, 0.04));
  color: #91b0ff;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  position: static;
  transition: background 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.col-dialogs--gc-topics .gc-topics-add-btn:hover {
  background: rgba(80, 120, 255, 0.1);
  border-color: rgba(112, 160, 255, 0.5);
  box-shadow: 0 0 18px rgba(65, 120, 230, 0.12);
}

.col-dialogs--gc-topics .gc-topics-empty-hint {
  margin: 8px 4px 4px;
  font-size: 13px;
  line-height: 1.4;
  color: #8893aa;
  text-align: center;
}

/* Mobile — keep tabs/search hidden even when mobile chrome forces display */
@media (max-width: 920px) {
  .col-dialogs--gc-topics.panel-card,
  .messenger-shell[data-olone-mobile-detail="gc-topics"] .col-dialogs.panel-card {
    width: 100%;
    min-width: 0;
    max-width: none;
    padding-left: 16px;
    padding-right: 16px;
    border-radius: 18px;
  }

  .messenger-shell .col-dialogs.col-dialogs--gc-topics #profileTabsWrap,
  .messenger-shell .col-dialogs.col-dialogs--gc-topics .profile-tabs-wrap,
  .messenger-shell .col-dialogs.col-dialogs--gc-topics .profile-tabs,
  .messenger-shell .col-dialogs.col-dialogs--gc-topics .dialogs-filter-pills,
  .messenger-shell .col-dialogs.col-dialogs--gc-topics #dialogsRailSearchWrap,
  .messenger-shell .col-dialogs.col-dialogs--gc-topics .dialogs-rail-search-wrap,
  .messenger-shell .col-dialogs.col-dialogs--gc-topics .profile-tab-panels--aux,
  .messenger-shell[data-olone-mobile-detail="none"] .col-dialogs.col-dialogs--gc-topics #profileTabsWrap,
  .messenger-shell[data-olone-mobile-detail="none"] .col-dialogs.col-dialogs--gc-topics .profile-tab-panels--aux,
  .messenger-shell[data-olone-mobile-detail="gc-topics"] .col-dialogs #profileTabsWrap,
  .messenger-shell[data-olone-mobile-detail="gc-topics"] .col-dialogs .profile-tab-panels--aux {
    display: none !important;
  }

  .col-dialogs--gc-topics .topic-item,
  .col-dialogs--gc-topics .gc-topic-item.topic-item {
    height: 72px;
    min-height: 72px;
    max-height: 72px;
  }

  .col-dialogs--gc-topics .topic-item--voice,
  .col-dialogs--gc-topics .gc-topic-item--voice.topic-item--voice {
    height: 74px;
    min-height: 74px;
    max-height: 74px;
  }

  .col-dialogs--gc-topics .topic-item__icon--voice {
    width: 44px;
    height: 44px;
  }
}