:root {
  --chat-card-bg: rgba(9, 13, 24, 0.6);
  --chat-surface: rgba(8, 12, 20, 0.5);
  --chat-border-soft: rgba(110, 231, 255, 0.16);
  --chat-border-strong: rgba(110, 231, 255, 0.22);
  --chat-radius: 14px;
  --chat-card-glow: rgba(110, 231, 255, 0.24);
  --chat-list-marker: "• ";
  --chat-list-marker-color: rgba(205, 218, 236, 0.74);
  --chat-room-hover-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
  --chat-room-hover-translate-y: 0px;
  --chat-room-glow-opacity: 0;
  --chat-room-glow-animation: none;
  --chat-room-icon-animation: none;
}

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

.chat-app .hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 14px 22px;
  align-items: start;
}

.chat-app .hero-main {
  display: grid;
  gap: 10px;
}

.hero-status-row {
  margin-top: 10px;
  gap: 8px;
  flex-wrap: wrap;
}

.chat-app .kicker {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.chat-app .section {
  padding: 14px;
  min-width: 0;
}

.chat-app .card,
.chat-app .subtle {
  min-width: 0;
  overflow-wrap: anywhere;
}

.chat-topbar {
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
}

.chat-topbar > * {
  min-width: 0;
}

.chat-back-link {
  min-height: 26px;
  padding: 0.2rem 0.52rem;
  font-size: 10.5px;
  border-radius: 10px;
  opacity: 0.86;
}

.chat-back-link:hover {
  opacity: 1;
}

.chat-topbar-nav {
  margin-right: auto;
  flex: 0 0 auto;
}

.chat-topbar-nav .btn {
  white-space: nowrap;
  min-width: max-content;
}

.chat-login-bar {
  margin-left: auto;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 7px 8px;
  flex-wrap: wrap;
  max-width: 100%;
}

.chat-login-mobile-details {
  width: 100%;
  min-width: 0;
  max-width: 100%;
}

.chat-login-mobile-details > summary {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
}

.chat-login-mobile-details > summary::-webkit-details-marker {
  display: none;
}

.chat-login-toggle-text {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0.72;
  white-space: nowrap;
}

.chat-login-mobile-body {
  min-width: 0;
}

#quick-login-pill {
  width: 244px;
  min-width: 244px;
  max-width: 244px;
  justify-content: flex-start;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-transform: none;
  letter-spacing: 0.02em;
}

.chat-login-editor {
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.chat-login-editor .input {
  width: 145px;
  min-width: 120px;
  padding: 0.46rem 0.55rem;
  border-radius: 10px;
  font-size: 12px;
}

.chat-login-editor .btn.small,
.chat-login-summary .btn.small {
  min-height: 30px;
  padding: 0.28rem 0.62rem;
}

.chat-login-advanced {
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 10px;
  background: rgba(8, 12, 20, 0.58);
}

.chat-login-advanced > summary {
  cursor: pointer;
  list-style: none;
  padding: 6px 8px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--muted);
}

.chat-login-advanced > summary::-webkit-details-marker {
  display: none;
}

.chat-login-advanced #quick-login-guest-checks {
  display: grid;
  gap: 5px;
  padding: 0 8px 8px;
}

.chat-login-advanced #quick-login-guest-checks .check-row {
  font-size: 10.5px;
  line-height: 1.25;
  margin: 0;
}

.chat-login-summary {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1 1 auto;
}

.chat-login-summary .subtle {
  margin: 0;
  font-size: 11px;
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: min(58vw, 320px);
}

.chat-login-mode-hint,
.chat-login-status {
  width: 100%;
  margin: 0;
  text-align: right;
  font-size: 10.5px;
  line-height: 1.25;
  overflow-wrap: anywhere;
}

@media (min-width: 901px) {
  .chat-login-bar {
    flex: 0 0 auto;
    width: auto;
  }

  .chat-login-mobile-details {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    width: auto;
    max-width: 100%;
    margin-left: auto;
  }

  .chat-login-mobile-details > summary {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    cursor: pointer;
    pointer-events: auto;
  }

  .chat-login-toggle-text {
    display: inline-block;
    flex: 0 0 auto;
  }

  .chat-login-mobile-details[open] > summary {
    margin-bottom: 7px;
  }

  .chat-login-mobile-body {
    display: flex;
    align-items: flex-end;
    justify-content: flex-end;
    gap: 7px 8px;
    flex-wrap: wrap;
    margin-top: 0;
  }

  .chat-login-summary {
    flex: 0 0 auto;
    justify-content: flex-end;
  }

  .chat-login-mobile-details:not([open]) > .chat-login-mobile-body {
    display: none;
  }

  .chat-login-mode-hint,
  .chat-login-status {
    text-align: right;
  }
}

.chat-login-status.good {
  color: rgba(141, 249, 219, 0.96);
}

.chat-login-status.warn {
  color: rgba(255, 148, 148, 0.96);
}

.chat-app .chat-list {
  margin: 10px 0 0 18px;
  display: grid;
  gap: 6px;
}

.chat-app .chat-list li {
  position: relative;
  padding-left: 4px;
}

.chat-app .chat-list li::marker {
  content: var(--chat-list-marker);
  color: var(--chat-list-marker-color);
}

.hero-howto-details {
  max-width: min(100%, 560px);
  overflow: hidden;
  border: 1px solid var(--chat-border-soft);
  border-radius: var(--chat-radius);
  background: rgba(7, 12, 20, 0.52);
}

.hero-howto-details > summary {
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 11px;
  user-select: none;
}

.hero-howto-details > summary::-webkit-details-marker {
  display: none;
}

.hero-howto-title {
  font-weight: 800;
}

.hero-howto-summary {
  margin: 0;
  font-size: 10.5px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.hero-howto-details[open] .hero-howto-summary {
  opacity: 0.85;
}

.hero-howto-list {
  margin: 0;
  gap: 5px;
  padding: 0 12px 12px 24px;
}

.hero-theme-corner {
  justify-self: end;
  align-self: start;
  padding-top: 4px;
}

.hero-theme-row {
  margin-top: 0;
  align-items: center;
  gap: 6px;
  flex-wrap: nowrap;
  justify-content: flex-end;
}

.hero-theme-row .chat-theme-label {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.hero-theme-row .chat-theme-select {
  min-width: 126px;
  width: 140px;
  max-width: 160px;
  border-radius: 9px;
  padding: 0.38rem 0.48rem;
  font-size: 12px;
}

.hero-theme-row .btn.small {
  min-height: 28px;
  padding: 0.24rem 0.56rem;
  white-space: nowrap;
}

.chat-theme-row {
  margin-top: 8px;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.chat-theme-label {
  margin-top: 0;
  font-size: 11px;
}

.chat-theme-select {
  min-width: 160px;
  max-width: 220px;
  width: 220px;
}

.chat-theme-studio {
  margin-top: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 12px;
  background: rgba(4, 10, 20, 0.52);
  overflow: hidden;
}

.chat-theme-studio > summary {
  cursor: pointer;
  padding: 10px 12px;
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
  user-select: none;
}

.chat-theme-studio-body {
  display: grid;
  gap: 8px;
  padding: 0 12px 12px;
}

.chat-theme-studio-seed-row {
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.chat-theme-seed {
  min-width: 140px;
  width: 180px;
}

.chat-theme-custom-row {
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.chat-theme-custom-accent {
  width: 58px;
  min-width: 58px;
  height: 34px;
  padding: 2px;
  border-radius: 10px;
}

.chat-theme-studio-actions {
  gap: 8px;
  flex-wrap: wrap;
}

.chat-theme-studio-status {
  margin-top: 2px;
  font-size: 11.5px;
  line-height: 1.35;
}

.chat-theme-studio-status.warn {
  color: rgba(255, 148, 148, 0.96);
}

.chat-theme-studio-status.good {
  color: rgba(141, 249, 219, 0.96);
}

.chat-theme-studio-tip {
  margin-top: 0;
  font-size: 11px;
  opacity: 0.7;
}

.chat-room-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 10px;
  align-items: start;
}

.chat-room-grid .col-6 {
  grid-column: auto;
  display: block;
  min-width: 0;
}

.chat-room-grid .chat-room-card {
  width: 100%;
}

.chat-room-card {
  display: flex;
  flex-direction: column;
  gap: 9px;
  background: var(--chat-card-bg);
  border: 1px solid var(--chat-border-soft);
  border-radius: 12px;
  padding: 11px;
  position: relative;
  overflow: hidden;
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
  min-height: 158px;
}

.chat-room-card::before {
  content: none;
}

.chat-room-card:hover {
  border-color: var(--chat-border-strong);
  box-shadow: var(--chat-room-hover-shadow);
  transform: translateY(var(--chat-room-hover-translate-y));
}

.chat-room-card.room-kind-public {
  border-color: rgba(110, 231, 255, 0.2);
}

.chat-room-card.room-kind-private {
  border-color: rgba(168, 146, 255, 0.28);
}

.chat-room-card.room-kind-secure {
  border-color: rgba(141, 249, 219, 0.26);
}

.chat-room-card.room-kind-private::before {
  background: radial-gradient(circle at 35% 35%, rgba(168, 146, 255, 0.28), rgba(168, 146, 255, 0));
}

.chat-room-card.room-kind-secure::before {
  background: radial-gradient(circle at 35% 35%, rgba(141, 249, 219, 0.3), rgba(141, 249, 219, 0));
}

.chat-room-card .room-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 8px;
}

.chat-room-card .room-head-main {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 0;
  flex: 1;
}

.chat-room-card .room-icon-wrap {
  width: 26px;
  height: 26px;
  min-width: 26px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: rgba(7, 16, 30, 0.8);
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.02);
}

.chat-room-card .room-icon {
  font-size: 0.86rem;
  line-height: 1;
  display: inline-block;
  transform-origin: center;
  animation: var(--chat-room-icon-animation);
}

.chat-room-card .room-title-stack {
  min-width: 0;
  display: grid;
  gap: 3px;
  flex: 1;
}

.chat-room-card .room-title {
  font-weight: 800;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.chat-room-card .room-kind-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  margin-left: auto;
  flex-shrink: 0;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  padding: 1px 7px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(226, 242, 255, 0.88);
  background: rgba(255, 255, 255, 0.03);
}

.chat-room-card.room-kind-private .room-kind-badge {
  border-color: rgba(168, 146, 255, 0.35);
  color: rgba(218, 209, 255, 0.95);
}

.chat-room-card.room-kind-secure .room-kind-badge {
  border-color: rgba(141, 249, 219, 0.38);
  color: rgba(186, 255, 232, 0.96);
}

.chat-room-card .room-meta {
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.3;
}

.chat-room-card .room-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  position: relative;
  z-index: 1;
}

.chat-room-card .room-actions .btn.small {
  min-height: 28px;
  padding: 0.28rem 0.58rem;
  font-size: 9px;
  border-radius: 10px;
}

.chat-presence-card {
  display: grid;
  gap: 10px;
}

.chat-presence-stage {
  position: relative;
  width: 100%;
  height: 240px;
  border-radius: 12px;
  border: 1px solid rgba(110, 231, 255, 0.24);
  background: linear-gradient(180deg, rgba(8, 14, 25, 0.92), rgba(6, 10, 18, 0.92));
  overflow: hidden;
  touch-action: none;
}

.chat-presence-stage::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 28px 28px;
}

.chat-presence-pointer {
  position: absolute;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(255, 255, 255, 0.36);
  box-shadow: 0 0 14px rgba(110, 231, 255, 0.65);
  pointer-events: none;
}

.chat-presence-label {
  position: absolute;
  transform: translate(-50%, calc(-100% - 10px));
  font-size: 10px;
  line-height: 1.2;
  padding: 3px 6px;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(6, 12, 20, 0.88);
  color: rgba(224, 240, 255, 0.92);
  white-space: nowrap;
  pointer-events: none;
}

.chat-presence-note {
  margin: 0;
  font-size: 12px;
}

.chat-presence-note.good {
  color: rgba(141, 249, 219, 0.96);
}

.chat-presence-note.warn {
  color: rgba(255, 148, 148, 0.96);
}

.private-room-panel {
  margin-top: 12px;
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  display: grid;
  gap: 12px;
}

.create-room-menu-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 10px;
}

.create-room-menu-title {
  font-weight: 800;
  line-height: 1.25;
}

.create-room-menu-subtle {
  margin-top: 4px;
  font-size: 12px;
  line-height: 1.35;
}

.create-room-menu-subtle.good {
  color: rgba(141, 249, 219, 0.96);
}

.create-room-menu-subtle.warn {
  color: rgba(255, 148, 148, 0.96);
}

.private-room-panel > * + * {
  padding-top: 10px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
}

#create-room-options {
  padding: 14px 15px;
  border-radius: var(--chat-radius);
  border: 1px solid var(--chat-border-strong);
  background: var(--chat-surface);
  display: grid;
  gap: 13px;
}

.create-flow-status {
  border: 1px dashed rgba(110, 231, 255, 0.26);
  border-radius: 12px;
  padding: 10px 11px;
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.create-flow-status.good {
  border-color: rgba(141, 249, 219, 0.42);
  color: rgba(141, 249, 219, 0.96);
}

.create-flow-status.warn {
  border-color: rgba(255, 205, 124, 0.42);
  color: rgba(255, 215, 153, 0.96);
}

.create-chat-tabs {
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 2px;
}

.create-chat-tabs .btn.active {
  border-color: rgba(124, 245, 200, 0.45);
  color: #8df9db;
}

.create-chat-tabs .btn {
  min-height: 38px;
}

.create-chat-panel {
  padding: 15px;
  border-radius: var(--chat-radius);
  border: 1px solid var(--chat-border-soft);
  background: var(--chat-surface);
  display: grid;
  gap: 11px;
}

.create-panel-title {
  font-weight: 800;
  font-size: 1.08rem;
  line-height: 1.25;
}

.private-room-form {
  flex-wrap: wrap;
  gap: 10px;
  align-items: stretch;
}

.secure-room-panel {
  margin-top: 0;
  padding: 15px;
  border-radius: var(--chat-radius);
  border: 1px solid var(--chat-border-soft);
  background: rgba(6, 12, 22, 0.52);
  display: grid;
  gap: 11px;
}

.secure-room-form {
  flex-wrap: wrap;
  gap: 10px;
  align-items: stretch;
}

.secure-room-form .input {
  min-width: 170px;
}

.private-room-link-row,
.secure-room-link-row {
  flex-wrap: wrap;
  gap: 8px;
}

.private-room-link-row .input,
.secure-room-link-row .input {
  min-width: 280px;
  flex: 1 1 280px;
}

.invite-qr-wrap {
  display: grid;
  place-items: start;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid rgba(110, 231, 255, 0.18);
  background: rgba(7, 12, 20, 0.68);
}

.invite-qr-wrap canvas {
  width: min(220px, 100%);
  height: auto;
  image-rendering: pixelated;
  border-radius: 10px;
  border: 1px solid rgba(110, 231, 255, 0.18);
  background: #0b0f14;
}

#secure-room-meta {
  font-size: 12.5px;
  line-height: 1.4;
}

.private-room-form .input {
  min-width: 200px;
  flex: 1 1 220px;
}

.private-room-form .btn {
  white-space: nowrap;
  min-height: 42px;
  flex: 1 1 260px;
}

.secure-room-form .input {
  min-width: 200px;
  flex: 1 1 220px;
}

.secure-room-form .btn {
  min-height: 42px;
  flex: 1 1 260px;
}

.private-room-owner,
.private-room-target {
  flex-wrap: wrap;
  gap: 10px;
}

.private-room-owner .input {
  min-width: 220px;
  flex: 1 1 220px;
}

.private-room-target .input {
  min-width: 280px;
  flex: 1 1 280px;
}

.check-row {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--muted);
  line-height: 1.4;
}

.check-row input[type="checkbox"] {
  margin-top: 2px;
}

.private-room-admin {
  flex-wrap: wrap;
  gap: 8px;
}

.private-room-admin .input {
  min-width: 220px;
}

#private-room-manage-hint {
  font-size: 12.5px;
  line-height: 1.45;
}

#private-room-manage-hint.warn {
  color: rgba(255, 148, 148, 0.92);
}

#private-room-manage-hint.good {
  color: rgba(141, 249, 219, 0.92);
}

.create-owner-details,
.private-room-manage-details {
  border: 1px solid var(--chat-border-soft);
  border-radius: var(--chat-radius);
  background: rgba(7, 12, 20, 0.52);
}

.create-owner-details summary,
.private-room-manage-details summary {
  cursor: pointer;
  padding: 12px 14px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

.create-owner-body,
.private-room-manage-body {
  display: grid;
  gap: 10px;
  padding: 0 14px 14px;
}

.private-room-manage-actions {
  flex-wrap: wrap;
  gap: 8px;
}

.chat-split {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

body[data-chat-theme="classic"] {
  --chat-list-marker: "• ";
  --chat-list-marker-color: rgba(205, 218, 236, 0.74);
  --chat-room-hover-shadow: 0 10px 24px rgba(0, 0, 0, 0.2);
  --chat-room-hover-translate-y: 0px;
  --chat-room-glow-opacity: 0;
  --chat-room-glow-animation: none;
  --chat-room-icon-animation: none;
}

body[data-chat-theme="classic"] .chat-app {
  border-color: rgba(110, 231, 255, 0.2);
}

body[data-chat-theme="classic"] .topbar {
  border-color: rgba(110, 231, 255, 0.2);
}

body[data-chat-theme="playful"] {
  --chat-card-bg: linear-gradient(155deg, rgba(33, 24, 58, 0.82), rgba(13, 24, 42, 0.8));
  --chat-surface: linear-gradient(165deg, rgba(21, 28, 44, 0.78), rgba(12, 18, 32, 0.7));
  --chat-border-soft: rgba(255, 131, 220, 0.28);
  --chat-border-strong: rgba(141, 249, 219, 0.5);
  --chat-list-marker: "✦ ";
  --chat-list-marker-color: rgba(255, 188, 240, 0.98);
  --chat-room-hover-shadow: 0 16px 34px rgba(18, 9, 33, 0.46), 0 0 0 1px rgba(141, 249, 219, 0.3);
  --chat-room-hover-translate-y: -3px;
  --chat-room-glow-opacity: 1;
  --chat-room-glow-animation: roomGlowPulse 3s ease-in-out infinite;
  --chat-room-icon-animation: roomIconFloat 2.2s ease-in-out infinite;
}

body[data-chat-theme="playful"] {
  background: radial-gradient(circle at 8% -6%, rgba(255, 133, 220, 0.22), rgba(3, 3, 6, 0) 40%),
    radial-gradient(circle at 92% 0%, rgba(141, 249, 219, 0.2), rgba(3, 3, 6, 0) 34%),
    radial-gradient(circle at 50% 110%, rgba(131, 170, 255, 0.16), rgba(3, 3, 6, 0) 45%),
    radial-gradient(circle at 0% 0%, #09101f, #040509 56%, #020204);
}

body[data-chat-theme="playful"] .chat-app {
  border-color: rgba(255, 131, 220, 0.35);
  box-shadow: 0 22px 48px rgba(20, 10, 40, 0.5), 0 0 0 1px rgba(141, 249, 219, 0.16);
}

body[data-chat-theme="playful"] .topbar {
  background: linear-gradient(135deg, rgba(31, 19, 49, 0.9), rgba(11, 27, 41, 0.86));
  border-color: rgba(255, 131, 220, 0.4);
  box-shadow: 0 8px 24px rgba(23, 9, 38, 0.45);
}

body[data-chat-theme="playful"] .card,
body[data-chat-theme="playful"] #create-room-options,
body[data-chat-theme="playful"] .create-chat-panel,
body[data-chat-theme="playful"] .secure-room-panel {
  background: linear-gradient(160deg, rgba(30, 20, 52, 0.65), rgba(12, 22, 38, 0.62));
  border-color: rgba(255, 131, 220, 0.26);
}

body[data-chat-theme="playful"] .chat-room-card {
  background: linear-gradient(160deg, rgba(44, 24, 72, 0.68), rgba(14, 24, 42, 0.76));
  border-color: rgba(255, 131, 220, 0.4);
}

body[data-chat-theme="playful"] .chat-room-card .room-kind-badge {
  border-color: rgba(255, 160, 234, 0.52);
  color: rgba(255, 226, 248, 0.98);
  background: rgba(255, 131, 220, 0.16);
}

body[data-chat-theme="aurora"] {
  --chat-card-bg: linear-gradient(155deg, rgba(16, 13, 40, 0.82), rgba(8, 20, 35, 0.78));
  --chat-surface: linear-gradient(165deg, rgba(15, 10, 35, 0.76), rgba(8, 19, 34, 0.7));
  --chat-border-soft: rgba(186, 148, 255, 0.34);
  --chat-border-strong: rgba(164, 248, 224, 0.52);
  --chat-list-marker: "✺ ";
  --chat-list-marker-color: rgba(214, 177, 255, 0.95);
  --chat-room-hover-shadow: 0 16px 36px rgba(7, 2, 24, 0.52), 0 0 0 1px rgba(194, 143, 255, 0.3);
  --chat-room-hover-translate-y: -3px;
  --chat-room-glow-opacity: 1;
  --chat-room-glow-animation: roomGlowPulse 3.2s ease-in-out infinite;
  --chat-room-icon-animation: roomIconFloat 2s ease-in-out infinite;
}

body[data-chat-theme="aurora"] {
  background: radial-gradient(circle at 0% -12%, rgba(142, 119, 255, 0.3), rgba(4, 5, 9, 0) 42%),
    radial-gradient(circle at 96% -6%, rgba(141, 249, 219, 0.2), rgba(4, 5, 9, 0) 34%),
    radial-gradient(circle at 50% 112%, rgba(198, 142, 255, 0.16), rgba(4, 5, 9, 0) 48%),
    radial-gradient(circle at 0% 0%, #070a1a, #030409 58%, #010204);
}

body[data-chat-theme="aurora"] .chat-app {
  border-color: rgba(194, 143, 255, 0.44);
  box-shadow: 0 24px 56px rgba(5, 8, 28, 0.58), 0 0 0 1px rgba(141, 249, 219, 0.18);
}

body[data-chat-theme="aurora"] .topbar {
  background: linear-gradient(135deg, rgba(21, 16, 46, 0.9), rgba(8, 25, 42, 0.86));
  border-color: rgba(194, 143, 255, 0.44);
  box-shadow: 0 8px 24px rgba(11, 6, 30, 0.46);
}

body[data-chat-theme="aurora"] .card,
body[data-chat-theme="aurora"] #create-room-options,
body[data-chat-theme="aurora"] .create-chat-panel,
body[data-chat-theme="aurora"] .secure-room-panel {
  background: linear-gradient(160deg, rgba(21, 14, 45, 0.67), rgba(10, 24, 41, 0.64));
  border-color: rgba(194, 143, 255, 0.32);
}

body[data-chat-theme="aurora"] .chat-room-card {
  background: linear-gradient(160deg, rgba(28, 15, 52, 0.72), rgba(10, 25, 43, 0.78));
  border-color: rgba(194, 143, 255, 0.42);
}

body[data-chat-theme="aurora"] .chat-room-card .room-kind-badge {
  border-color: rgba(164, 248, 224, 0.52);
  color: rgba(196, 255, 238, 0.98);
  background: rgba(141, 249, 219, 0.14);
}

body[data-chat-theme="vice"] {
  --text: #fff0ff;
  --muted: rgba(250, 224, 255, 0.82);
  --accent: #ff4fd8;
  --accent-soft: rgba(255, 79, 216, 0.22);
  --accent-strong: rgba(255, 79, 216, 0.38);
  --border: rgba(255, 79, 216, 0.3);
  --border-highlight: rgba(33, 248, 255, 0.48);
  --chat-card-bg: linear-gradient(150deg, rgba(26, 7, 56, 0.88), rgba(8, 38, 70, 0.82));
  --chat-surface: linear-gradient(165deg, rgba(22, 7, 47, 0.84), rgba(8, 34, 62, 0.8));
  --chat-border-soft: rgba(255, 79, 216, 0.38);
  --chat-border-strong: rgba(33, 248, 255, 0.6);
  --chat-list-marker: "✶ ";
  --chat-list-marker-color: rgba(255, 176, 237, 0.98);
  --chat-room-hover-shadow: 0 22px 46px rgba(10, 4, 30, 0.64), 0 0 0 1px rgba(33, 248, 255, 0.34);
  --chat-room-hover-translate-y: -4px;
  --chat-room-glow-opacity: 1;
  --chat-room-glow-animation: roomGlowPulse 2.5s ease-in-out infinite;
  --chat-room-icon-animation: roomIconFloat 1.7s ease-in-out infinite;
  background:
    radial-gradient(circle at 10% -10%, rgba(255, 79, 216, 0.4), rgba(8, 3, 18, 0) 42%),
    radial-gradient(circle at 96% 2%, rgba(33, 248, 255, 0.32), rgba(8, 3, 18, 0) 36%),
    radial-gradient(circle at 50% 112%, rgba(139, 99, 255, 0.24), rgba(8, 3, 18, 0) 48%),
    radial-gradient(circle at 0% 0%, #140328, #070313 54%, #020205);
}

body[data-chat-theme="vice"] .chat-app {
  border-color: rgba(255, 79, 216, 0.46);
  box-shadow: 0 28px 60px rgba(20, 4, 35, 0.62), 0 0 0 1px rgba(33, 248, 255, 0.24);
}

body[data-chat-theme="vice"] .topbar {
  background: linear-gradient(135deg, rgba(46, 8, 68, 0.92), rgba(6, 35, 64, 0.9));
  border-color: rgba(255, 79, 216, 0.5);
  box-shadow: 0 10px 28px rgba(16, 4, 30, 0.56);
}

body[data-chat-theme="vice"] .card,
body[data-chat-theme="vice"] #create-room-options,
body[data-chat-theme="vice"] .create-chat-panel,
body[data-chat-theme="vice"] .secure-room-panel,
body[data-chat-theme="vice"] .chat-room-card,
body[data-chat-theme="vice"] .notice,
body[data-chat-theme="vice"] .chat-login-advanced {
  background: linear-gradient(160deg, rgba(39, 9, 62, 0.76), rgba(8, 30, 55, 0.72));
  border-color: rgba(255, 79, 216, 0.34);
  box-shadow: 0 10px 28px rgba(14, 4, 28, 0.34);
}

body[data-chat-theme="vice"] .input {
  background: rgba(8, 20, 36, 0.82);
  border-color: rgba(33, 248, 255, 0.32);
  color: #fff0ff;
}

body[data-chat-theme="vice"] .btn.secondary {
  background: rgba(10, 23, 38, 0.78);
  border-color: rgba(33, 248, 255, 0.38);
  color: #e8fbff;
}

body[data-chat-theme="vice"] .btn.ghost {
  color: rgba(255, 214, 247, 0.88);
  border-color: rgba(255, 79, 216, 0.28);
}

body[data-chat-theme="vice"] .btn.ghost:hover {
  background: rgba(255, 79, 216, 0.16);
  color: #fff2ff;
}

body[data-chat-theme="vice"] .chat-room-card .room-kind-badge {
  border-color: rgba(33, 248, 255, 0.56);
  color: rgba(214, 255, 255, 0.98);
  background: rgba(33, 248, 255, 0.16);
}

body[data-chat-theme="midnight"] {
  --chat-card-bg: linear-gradient(155deg, rgba(8, 14, 33, 0.9), rgba(7, 10, 24, 0.86));
  --chat-surface: linear-gradient(160deg, rgba(7, 12, 28, 0.82), rgba(5, 9, 22, 0.78));
  --chat-border-soft: rgba(92, 132, 255, 0.28);
  --chat-border-strong: rgba(115, 209, 255, 0.42);
  --chat-list-marker: "✹ ";
  --chat-list-marker-color: rgba(170, 202, 255, 0.92);
  --chat-room-hover-shadow: 0 18px 38px rgba(0, 6, 20, 0.58), 0 0 0 1px rgba(110, 161, 255, 0.28);
  --chat-room-hover-translate-y: -3px;
  --chat-room-glow-opacity: 0.9;
  --chat-room-glow-animation: roomGlowPulse 3.4s ease-in-out infinite;
  --chat-room-icon-animation: roomIconFloat 2.4s ease-in-out infinite;
  background: radial-gradient(circle at 14% -10%, rgba(75, 122, 255, 0.24), rgba(2, 5, 16, 0) 38%),
    radial-gradient(circle at 92% 2%, rgba(55, 188, 255, 0.18), rgba(2, 5, 16, 0) 30%),
    radial-gradient(circle at 50% 114%, rgba(85, 94, 255, 0.16), rgba(2, 5, 16, 0) 48%),
    radial-gradient(circle at 0% 0%, #060c1f, #030712 54%, #01040a);
}

body[data-chat-theme="midnight"] .chat-app {
  border-color: rgba(92, 132, 255, 0.36);
  box-shadow: 0 24px 56px rgba(2, 8, 28, 0.56), 0 0 0 1px rgba(114, 201, 255, 0.14);
}

body[data-chat-theme="midnight"] .topbar {
  background: linear-gradient(135deg, rgba(10, 18, 40, 0.92), rgba(7, 16, 35, 0.9));
  border-color: rgba(92, 132, 255, 0.38);
  box-shadow: 0 8px 24px rgba(5, 10, 32, 0.5);
}

body[data-chat-theme="midnight"] .card,
body[data-chat-theme="midnight"] #create-room-options,
body[data-chat-theme="midnight"] .create-chat-panel,
body[data-chat-theme="midnight"] .secure-room-panel {
  background: linear-gradient(160deg, rgba(8, 14, 33, 0.72), rgba(6, 12, 28, 0.7));
  border-color: rgba(92, 132, 255, 0.28);
}

body[data-chat-theme="midnight"] .chat-room-card {
  background: linear-gradient(160deg, rgba(10, 16, 38, 0.78), rgba(6, 12, 28, 0.8));
  border-color: rgba(92, 132, 255, 0.4);
}

body[data-chat-theme="midnight"] .chat-room-card .room-kind-badge {
  border-color: rgba(130, 181, 255, 0.5);
  color: rgba(210, 231, 255, 0.95);
  background: rgba(92, 132, 255, 0.16);
}

@keyframes roomIconFloat {
  0% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-1.5px);
  }
  100% {
    transform: translateY(0);
  }
}

@keyframes roomGlowPulse {
  0% {
    transform: scale(0.96);
    opacity: 0.6;
  }
  50% {
    transform: scale(1.06);
    opacity: 0.9;
  }
  100% {
    transform: scale(0.96);
    opacity: 0.6;
  }
}

@media (prefers-reduced-motion: reduce) {
  .chat-room-card,
  .chat-room-card::before,
  .chat-room-card .room-icon {
    animation: none !important;
    transition: none !important;
    transform: none !important;
  }
}

@media (max-width: 900px) {
  body[data-chat-theme] .app-container {
    padding-left: calc(0.65rem + env(safe-area-inset-left, 0px));
    padding-right: calc(0.65rem + env(safe-area-inset-right, 0px));
  }

  .chat-topbar {
    align-items: stretch;
    padding: 0.8rem 0.9rem;
  }

  .chat-back-link {
    min-height: 24px;
    padding: 0.16rem 0.44rem;
    font-size: 9.8px;
  }

  .chat-login-bar {
    margin-left: 0;
    width: 100%;
    justify-content: flex-start;
  }

  .chat-login-mobile-details {
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 10px;
    background: rgba(8, 12, 20, 0.48);
    padding: 6px 8px;
  }

  .chat-login-mobile-details > summary {
    cursor: pointer;
    justify-content: space-between;
  }

  .chat-login-mobile-details > summary #quick-login-pill {
    flex: 1 1 auto;
    max-width: 100%;
  }

  .chat-login-mobile-details[open] > summary {
    margin-bottom: 8px;
  }

  .chat-login-mobile-body {
    display: grid;
    gap: 7px;
  }

  .chat-login-toggle-text {
    display: inline-block;
  }

  .chat-login-editor {
    width: 100%;
  }

  .chat-login-editor .input {
    width: auto;
    flex: 1 1 130px;
  }

  .chat-login-advanced {
    width: 100%;
  }

  .chat-login-mode-hint,
  .chat-login-status {
    text-align: left;
  }

  .chat-room-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 8px;
  }

  #quick-login-pill {
    width: auto;
    min-width: 0;
    max-width: 100%;
  }

  .chat-app .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-theme-corner {
    justify-self: start;
    width: 100%;
    padding-top: 0;
  }

  .chat-presence-stage {
    height: 190px;
  }

  .create-room-menu-head {
    flex-wrap: wrap;
  }

  .create-room-menu-head .btn {
    width: 100%;
  }

  #create-room-options,
  .create-chat-panel,
  .secure-room-panel {
    padding: 13px;
  }

  .chat-theme-select,
  .chat-theme-seed {
    width: 100%;
    max-width: none;
  }

  .hero-theme-row {
    gap: 8px;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .hero-theme-row .chat-theme-label {
    display: inline-block;
    flex: 0 0 auto;
  }

  .hero-theme-row .chat-theme-select {
    width: auto;
    min-width: 0;
    flex: 1 1 130px;
  }

  .chat-theme-studio-actions .btn {
    min-width: 0;
  }

  .private-room-form .input,
  .secure-room-form .input,
  .private-room-form .btn,
  .secure-room-form .btn {
    min-width: 100%;
    flex-basis: 100%;
  }

  .invite-qr-wrap {
    width: 100%;
    place-items: center;
  }
}

@media (max-width: 620px) {
  .chat-room-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}