:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --panel: #121923;
  --panel-2: #0f151e;
  --text: #edf2f7;
  --muted: #9fb2c6;
  --accent: #358f78;
  --accent-2: #4dd6b3;
  --border: #202c3a;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --radius: 16px;
  --font-ui: 'Atkinson Hyperlegible Next', 'Segoe UI', 'SF Pro Text', 'Helvetica Neue', sans-serif;
  --font-size-xs: 12px;
  --font-size-sm: 14px;
  --font-size-md: 16px;
  --font-size-lg: 18px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --line-height-body: 1.4;
}

* {
  box-sizing: border-box;
}

html {
  height: 100%;
  overflow: hidden;
  overscroll-behavior: none;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-ui);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-body);
  color: var(--text);
  background: #0b0f14;
  height: 100vh;
  overflow: hidden;
  overscroll-behavior: none;
}

.app {
  display: flex;
  flex-direction: column;
  gap: 0;
  height: 100vh;
  animation: rise 0.6s ease-out;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 18px;
  background: rgba(10, 14, 20, 0.95);
  border-bottom: 1px solid var(--border);
  border-radius: 0;
  backdrop-filter: blur(10px);
  flex-shrink: 0;
}

.active-call-bar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  background: linear-gradient(90deg, rgba(24, 40, 58, 0.92), rgba(15, 24, 36, 0.92));
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.active-call-meta {
  display: grid;
  gap: 2px;
}

.active-call-room {
  font-size: var(--font-size-md);
  letter-spacing: 0.4px;
}

.active-call-participants {
  color: var(--muted);
  font-size: var(--font-size-xs);
  letter-spacing: 1px;
  text-transform: uppercase;
}

.active-call-controls {
  display: flex;
  gap: 8px;
  margin-left: auto;
  align-items: center;
  flex-wrap: wrap;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand {
  font-size: var(--font-size-xl);
  letter-spacing: 2px;
  text-transform: uppercase;
}

.mobile-menu-btn {
  display: none;
  width: 34px;
  height: 34px;
  padding: 0;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: rgba(12, 17, 24, 0.85);
  color: var(--text);
  font-size: var(--font-size-xl);
  line-height: 1;
  align-items: center;
  justify-content: center;
}

.mobile-menu-btn:hover {
  transform: none;
  border-color: var(--accent-2);
  background: rgba(77, 214, 179, 0.1);
}

.status {
  font-size: var(--font-size-xs);
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.user-pill {
  font-size: var(--font-size-xs);
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  background: rgba(12, 17, 24, 0.8);
}

.logout-btn {
  padding: 4px 10px;
  font-size: var(--font-size-md);
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s;
}

.logout-btn:hover {
  color: var(--text);
  border-color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.logout-btn.hidden {
  display: none;
}

.card {
  background: linear-gradient(150deg, rgba(16, 23, 32, 0.9), rgba(10, 14, 20, 0.9));
  border: 1px solid var(--border);
  border-radius: 0;
  padding: 18px;
  box-shadow: none;
}

.auth {
  position: fixed;
  inset: 0;
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  padding: 40px;
  place-content: center;
  overflow-y: auto;
  background: rgba(0, 0, 0, 0.73);
  backdrop-filter: blur(8px);
  z-index: 1000;
}

.auth.hidden {
  display: none;
}

.layout.hidden {
  display: none;
}

.auth-hint {
  grid-column: 1 / -1;
  font-size: var(--font-size-xs);
  color: var(--muted);
}

.auth-tabs {
  grid-column: 1 / -1;
  display: flex;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}

.auth-tab {
  padding: 8px 16px;
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: var(--font-size-sm);
  border-bottom: 2px solid transparent;
  transition: all 0.2s;
}

.auth-tab:hover {
  color: var(--text);
}

.auth-tab.active {
  color: var(--text);
  border-bottom-color: var(--primary);
}

.auth-form {
  display: none;
  grid-column: 1 / -1;
}

.auth-form.active {
  display: block;
}

.auth-form > div {
  margin-bottom: 12px;
}

.label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
  margin-bottom: 6px;
}

input,
select,
textarea {
  width: 100%;
  background: var(--panel-2);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  color: var(--text);
  font-family: inherit;
  font-size: var(--font-size-sm);
  line-height: var(--line-height-body);
}

textarea {
  resize: vertical;
  min-height: 44px;
  max-height: 160px;
}

button {
  border: none;
  border-radius: 999px;
  padding: 10px 16px;
  background: #253041;
  color: var(--text);
  font-family: inherit;
  font-size: var(--font-size-sm);
  line-height: 1.2;
  cursor: pointer;search-btn
  transition: transform 0.2s ease, background 0.2s ease;
}

button:hover {
  transform: translateY(-1px);
  background: #2a3b52;
}

button.primary {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-2) 100%);
  color: #1c120a;
}

.admin-tools {
  grid-column: 1 / -1;
  display: grid;
  gap: 10px;
  grid-template-columns: minmax(160px, 200px) 1fr;
  align-items: center;
}

.admin-tools.vertical {
  grid-template-columns: 1fr;
}

.admin-panel {
  display: grid;
  gap: 10px;
}

.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  padding: 12px 16px;
  border-radius: 12px;
  background: rgba(24, 33, 46, 0.95);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: var(--shadow);
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
  max-width: 320px;
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.mobile-diagnostics {
  display: none;
}

.hidden {
  display: none;
}

.layout {
  display: grid;
  gap: 0;
  grid-template-columns: var(--sidebar-width, clamp(220px, 28vw, 420px)) minmax(420px, 1fr);
  flex: 1;
  min-height: 0;
  overflow: hidden;
  position: relative;
}

.sidebar {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
  border-right: 1px solid var(--border);
  overflow-y: auto;
  padding: 10px;
}

.sidebar-resizer {
  position: absolute;
  top: 0;
  bottom: 0;
  left: calc(var(--sidebar-width, clamp(220px, 28vw, 420px)) - 4px);
  width: 8px;
  margin: 0;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  cursor: col-resize;
  z-index: 20;
  touch-action: none;
}

.sidebar-resizer::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  left: 3px;
  width: 2px;
  background: transparent;
  transition: background 0.15s ease;
}

.sidebar-resizer:hover::after,
.sidebar-resizer.is-dragging::after {
  background: rgba(255, 255, 255, 0.25);
}

body.sidebar-resizing {
  user-select: none;
  cursor: col-resize;
}

.sidebar-overlay {
  display: none;
}

.section-title {
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--muted);
}

.divider {
  height: 1px;
  background: var(--border);
  margin: 4px 0;
}

.hubs-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.hub-item {
  margin-bottom: 8px;
}

.hub-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 10px;
  background: rgba(15, 21, 30, 0.7);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 4px;
}

.hub-name {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
}

.hub-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.add-channel-btn {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: rgba(10, 14, 20, 0.8);
  color: var(--accent-2);
  font-size: var(--font-size-md);
  line-height: 1;
  cursor: pointer;
  transition: all 0.2s;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.add-channel-btn:hover {
  background: rgba(77, 214, 179, 0.1);
  border-color: var(--accent-2);
  transform: scale(1.1);
}

.add-channel-btn.delete-btn {
  color: #ff8a8a;
}

.add-channel-btn.delete-btn:hover {
  background: rgba(255, 138, 138, 0.12);
  border-color: #ff8a8a;
}

.channels-list {
  list-style: none;
  margin: 0 0 0 8px;
  padding: 0;
  display: grid;
  gap: 2px;
}

.channel-item {
  padding: 6px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: rgba(15, 21, 30, 0.5);
  cursor: pointer;
  transition: border 0.2s ease, transform 0.2s ease;
  font-size: var(--font-size-sm);
  display: flex;
  align-items: center;
  opacity: 0.7;
  gap: 8px;
}

.channel-item.active {
  background: rgba(15, 30, 32, 0.7);
  opacity: 1.0;
}

.channel-delete-btn {
  width: 24px;
  height: 24px;
  border-radius: 4px;
  border: 1px solid var(--border);
  background: rgba(10, 14, 20, 0.8);
  color: #ff8a8a;
  font-size: var(--font-size-xs);
  line-height: 1;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.channel-delete-btn:hover {
  transform: none;
  background: rgba(255, 138, 138, 0.12);
  border-color: #ff8a8a;
}

.empty-message {
  padding: 12px;
  color: var(--muted);
  font-size: var(--font-size-sm);
  font-style: italic;
  text-align: center;
}

.inline-edit-input {
  font-family: inherit;
  font-size: inherit;
  padding: 4px 8px;
  border: 1px solid var(--accent-2);
  border-radius: 4px;
  background: rgba(15, 30, 32, 0.9);
  color: var(--text);
  outline: none;
  width: 100%;
  max-width: 200px;
}

.hub-edit-input {
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--accent);
}

.channel-edit-input {
  font-size: var(--font-size-sm);
}

.inline-edit-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 2px rgba(255, 179, 71, 0.2);
}

.chat {
  display: grid;
  gap: 10px;
  grid-template-rows: auto auto 1fr;
  min-height: 0;
  padding: 14px;
  overflow: hidden;
  position: relative;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.room-name {
  font-size: var(--font-size-xl);
}

.chat-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.voice-hint {
  font-size: var(--font-size-xs);
  color: var(--muted);
}

.icon-control {
  width: 38px;
  height: 38px;
  border-radius: 999px;
  padding: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: var(--font-size-lg);
}

.search-row {
  display: flex;
  gap: 10px;
}

.search-results {
  min-height: 22px;
  max-height: 220px;
  overflow-y: auto;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: rgba(8, 12, 18, 0.7);
  padding: 8px;
}

.search-results-empty {
  font-size: var(--font-size-sm);
  color: var(--muted);
  padding: 8px;
}

.search-results-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.search-hit {
  padding: 8px 10px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 8px;
  background: rgba(12, 17, 24, 0.85);
}

.search-hit-meta {
  font-size: var(--font-size-xs);
  color: var(--muted);
  letter-spacing: 0.2px;
  margin-bottom: 4px;
}

.search-hit-snippet {
  font-size: var(--font-size-sm);
  color: var(--text);
  line-height: 1.35;
  white-space: pre-wrap;
  word-break: break-word;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 6px;
  overflow-y: auto;
  min-height: 0;
}

.messages::before {
  content: '';
  margin-top: auto;
}

.message {
  background: rgba(12, 17, 24, 0.8);
  padding: 10px 12px;
}

.message .meta {
  font-size: var(--font-size-xs);
  color: var(--muted);
}

.composer {
  display: flex;
  gap: 10px;
  position: sticky;
  bottom: 0;
  z-index: 2;
  padding-top: 8px;
  border-top: 1px solid var(--border);
  background: linear-gradient(180deg, rgba(18, 25, 35, 0.15) 0%, rgba(18, 25, 35, 0.98) 45%);
}

.composer textarea {
  flex: 1;
}

.streams {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
}

.media-stage {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px;
  overflow-y: auto;
  align-content: start;
  min-height: 0;
}

.streams-empty {
  position: absolute;
  inset: 50% 0 auto 0;
  transform: translateY(-10%);
  text-align: center;
  color: var(--muted);
  pointer-events: none;
  letter-spacing: 0.3px;
}

.streams-empty.hidden {
  display: none;
}

.text-chat-toggle {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 30;
  width: 28px;
  height: 52px;
  border-radius: 10px 0 0 10px;
  padding: 0;
  font-size: var(--font-size-md);
}

.text-chat-drawer {
  position: absolute;
  inset: 14px 14px 14px auto;
  width: min(380px, 92%);
  z-index: 25;
  display: grid;
  gap: 10px;
  grid-template-rows: auto auto auto minmax(0, 1fr) auto;
  overflow: hidden;
  transform: translateX(110%);
  transition: transform 0.25s ease;
}

.text-chat-drawer.open {
  transform: translateX(0);
}

.drawer-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.chat.text-channel {
  grid-template-rows: auto 1fr;
}

.chat.text-channel .voice-only {
  display: none;
}

.chat.text-channel .voice-hint {
  display: none;
}

.chat.text-channel .media-stage {
  display: none;
}

.chat.text-channel .streams-empty {
  display: none;
}

.chat.text-channel .text-chat-toggle {
  display: none;
}

.chat.text-channel .text-chat-drawer {
  position: static;
  inset: auto;
  width: 100%;
  transform: none;
  z-index: auto;
  grid-template-rows: auto auto minmax(0, 1fr) auto;
}

.chat.text-channel .drawer-header {
  display: none;
}

.stream-tile {
  background: rgba(14, 20, 28, 0.9);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 6px;
  display: grid;
  gap: 6px;
  align-content: start;
}

.stream-tile video {
  width: 100%;
  border-radius: 8px;
  background: #0b0f14;
}

.stream-label {
  font-size: var(--font-size-xs);
  color: var(--muted);
}

.icon-btn {
  padding: 6px 10px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: var(--font-size-md);
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.icon-btn:hover {
  border-color: var(--accent-2);
  background: rgba(77, 214, 179, 0.1);
  transform: none;
}

.icon-btn.close-btn {
  font-size: var(--font-size-2xl);
  width: 32px;
  height: 32px;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

dialog.modal {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: 500px;
  margin: auto;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 0;
  background: linear-gradient(150deg, rgba(16, 23, 32, 0.95), rgba(10, 14, 20, 0.95));
  box-shadow: 0 0 60px rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(10px);
}

dialog.modal::backdrop {
  background: rgba(0, 0, 0, 0.5);
}

.modal-content {
  display: grid;
  gap: 18px;
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 20px;
  border-bottom: 1px solid var(--border);
}

.modal-header h2 {
  margin: 0;
  font-size: var(--font-size-lg);
  font-weight: normal;
  letter-spacing: 1px;
}

.modal-body {
  padding: 20px;
  display: grid;
  gap: 16px;
}

.form-group {
  display: grid;
  gap: 6px;
}

.form-group label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--muted);
}

.modal-footer {
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  padding: 18px 20px;
  border-top: 1px solid var(--border);
}

.modal-footer button {
  flex-shrink: 0;
}

.voice-join-room-name {
  font-size: var(--font-size-lg);
}

.voice-join-help {
  font-size: var(--font-size-sm);
  color: var(--muted);
}

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

.member-search-results {
  border: 1px solid #444;
  border-radius: 6px;
  max-height: 300px;
  overflow-y: auto;
  margin-top: 12px;
}

.member-search-item {
  padding: 12px;
  border-bottom: 1px solid #333;
  cursor: pointer;
  transition: background-color 0.2s;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.member-search-item:hover {
  background-color: #2a2a2a;
}

.member-search-item:last-child {
  border-bottom: none;
}

.add-user-btn {
  padding: 6px 12px;
  font-size: var(--font-size-xs);
  background-color: #333;
  border: 1px solid #555;
  border-radius: 4px;
  color: #ccc;
  cursor: pointer;
  transition: background-color 0.2s;
}

.add-user-btn:hover {
  background-color: #4a7c59;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .chat {
    min-height: auto;
  }

  .text-chat-drawer {
    width: min(420px, 96%);
  }
}

@media (max-width: 900px) {
  .topbar {
    position: relative;
    z-index: 1200;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(340px, 86vw);
    z-index: 1100;
    transform: translateX(-105%);
    transition: transform 0.25s ease;
    padding-top: 72px;
    border-right: 1px solid var(--border);
  }

  .sidebar-resizer {
    display: none;
  }

  .sidebar.mobile-open {
    transform: translateX(0);
  }

  .sidebar-overlay {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 1000;
    border: 0;
    margin: 0;
    padding: 0;
    background: rgba(6, 10, 14, 0.7);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease;
  }

  .sidebar-overlay.show {
    opacity: 1;
    pointer-events: auto;
  }

  .text-chat-drawer {
    inset: 10px 10px 10px auto;
    width: min(92vw, 420px);
  }

  .active-call-bar {
    padding: 10px;
    flex-wrap: wrap;
  }

  .active-call-controls {
    width: 100%;
    margin-left: 0;
  }

  .mobile-diagnostics {
    display: block;
    position: fixed;
    left: 10px;
    bottom: 10px;
    z-index: 1300;
    max-width: min(92vw, 360px);
    font-size: var(--font-size-xs);
    line-height: 1.3;
    color: #dbe6f4;
    background: rgba(5, 9, 14, 0.82);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 10px;
    white-space: pre-line;
    pointer-events: none;
  }

}