:root {
  color-scheme: dark;
  --mint: #43E6C6;
  --bg: #0B1220;
  --panel: #121D2A;
  --panel-2: #182331;
  --border: #2A3948;
  --muted: #9DAFBD;
  --text: #EDF6F5;
  --purple: #B49AFF;
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { min-height: 100%; }
body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(ellipse at 50% -15%, #153A3B 0, transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: Inter, "Segoe UI", system-ui, sans-serif;
}
button, input, textarea { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: wait; opacity: .6; }
a { color: var(--mint); }
.topbar {
  width: min(1300px, 100%);
  margin: 0 auto;
  padding: 22px 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.brand {
  display: inline-flex;
  gap: 11px;
  align-items: center;
  color: var(--text);
  font-size: 17px;
  font-weight: 850;
  letter-spacing: 2px;
  text-decoration: none;
}
.brand b { color: var(--mint); }
.brand-mark {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: #12312F;
  color: var(--mint);
  border: 1px solid #30736B;
  border-radius: 11px;
  font-size: 21px;
}
.top-badge {
  color: var(--mint);
  background: #12312F;
  border: 1px solid #24564F;
  border-radius: 30px;
  padding: 7px 12px;
  font-size: 12px;
}
.center-panel {
  width: min(470px, calc(100% - 28px));
  margin: 36px auto 48px;
  padding: 34px;
  background: rgba(18, 29, 42, .95);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 22px 90px #0003;
}
.panel-icon, .welcome-mark {
  width: 54px;
  height: 54px;
  display: grid;
  place-items: center;
  border-radius: 18px;
  background: #12312F;
  border: 1px solid #2B6961;
  color: var(--mint);
  font-size: 25px;
}
.eyebrow, .section-label {
  color: var(--mint);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1.6px;
}
.center-panel h1 {
  margin: 20px 0 9px;
  font-size: clamp(28px, 5vw, 36px);
  letter-spacing: -1px;
}
.center-panel > p { line-height: 1.65; }
.muted, .small-note { color: var(--muted); }
.small-note { font-size: 12px; line-height: 1.6; margin-top: 23px; }
.form-stack { display: grid; gap: 15px; margin-top: 23px; }
.form-stack label {
  display: grid;
  gap: 8px;
  color: #D8E4E7;
  font-size: 13px;
}
.form-stack input, .search-input, .composer textarea {
  width: 100%;
  color: var(--text);
  background: #0B1420;
  border: 1px solid #30404F;
  border-radius: 12px;
  padding: 13px 14px;
  outline: none;
}
.form-stack input:focus, .search-input:focus, .composer textarea:focus {
  border-color: var(--mint);
  box-shadow: 0 0 0 3px #43E6C618;
}
.button {
  min-height: 42px;
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 10px 15px;
  font-size: 13px;
  font-weight: 750;
  transition: transform .15s, filter .15s;
}
.button:hover { filter: brightness(1.08); }
.button:active { transform: translateY(1px); }
.button-primary {
  background: var(--mint);
  color: #07201D;
  border-color: #69F2D7;
}
.text-button {
  border: 0;
  background: transparent;
  color: var(--mint);
  padding: 12px 5px;
  font-size: 13px;
}
.auth-switch { display: flex; justify-content: center; margin-top: 5px; }
.feedback { font-size: 13px; line-height: 1.6; }
.feedback.error { color: #FFA4AB; }
.feedback.success { color: var(--mint); }
.setup-steps { display: grid; gap: 12px; margin: 23px 0; }
.setup-steps > div {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 10px;
  align-items: start;
  padding: 13px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #0D1723;
  font-size: 13px;
  line-height: 1.6;
}
.setup-steps b { color: var(--mint); }
.setup-steps code { color: #C9B7FF; font-size: 12px; overflow-wrap: anywhere; }
.site-footer {
  margin-top: auto;
  padding: 22px;
  text-align: center;
  color: #6F8291;
  font-size: 10px;
  letter-spacing: 1px;
}
.site-footer span { padding: 0 5px; color: #3E6664; }
.chat-shell {
  width: min(1480px, calc(100% - 30px));
  height: min(820px, calc(100vh - 125px));
  min-height: 520px;
  display: grid;
  grid-template-columns: 255px minmax(0, 1fr);
  margin: 7px auto 25px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 21px;
  background: #0D1723;
  box-shadow: 0 22px 90px #0004;
}
.sidebar {
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 22px 13px 13px;
  background: #101A27;
  border-right: 1px solid var(--border);
}
.sidebar-heading { display: flex; align-items: center; justify-content: space-between; padding: 0 8px 20px; }
.online-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 11px #43E6C680; }
.workspace-name {
  display: flex;
  align-items: center;
  gap: 11px;
  margin: 0 0 27px;
  padding: 12px 10px;
  border: 1px solid #2A3B49;
  border-radius: 13px;
  background: #152330;
}
.workspace-icon {
  width: 36px;
  height: 36px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: #12312F;
  color: var(--mint);
  font-weight: 850;
}
.workspace-name b, .workspace-name small { display: block; }
.workspace-name b { font-size: 12px; }
.workspace-name small { margin-top: 4px; color: var(--muted); font-size: 10px; }
.room-label { margin: 0 8px 11px; color: #788D9D; }
.rooms-list { display: grid; gap: 4px; }
.room-button {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  padding: 11px 12px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: transparent;
  color: #A9B9C4;
  text-align: left;
  font-size: 13px;
}
.room-button:hover { background: #1B2A38; color: var(--text); }
.room-button.active {
  background: #14342F;
  border-color: #28584F;
  color: var(--mint);
}
.room-hash { color: #6B8192; font-size: 17px; }
.room-button.active .room-hash { color: var(--mint); }
.sidebar-notice {
  margin-top: auto;
  padding: 14px;
  border: 1px solid #354338;
  background: #1C2A28;
  border-radius: 12px;
}
.sidebar-notice b { color: #B9E8DB; font-size: 11px; }
.sidebar-notice p { margin: 7px 0 0; color: #A9BDB7; line-height: 1.55; font-size: 10px; }
.account-card {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-top: 13px;
  padding: 11px 7px 3px;
  border-top: 1px solid var(--border);
}
.avatar {
  flex: 0 0 33px;
  width: 33px;
  height: 33px;
  display: grid;
  place-items: center;
  border: 1px solid #3F7770;
  background: #1C4942;
  border-radius: 12px;
  color: var(--mint);
  font-weight: 800;
}
.account-text { flex: 1; min-width: 0; }
.account-text b, .account-text small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.account-text b { font-size: 11px; }
.account-text small { margin-top: 3px; color: var(--muted); font-size: 9px; }
.icon-button {
  display: grid;
  place-items: center;
  flex: 0 0 34px;
  width: 34px;
  height: 34px;
  border: 1px solid transparent;
  border-radius: 10px;
  color: #A6B7C1;
  background: transparent;
  font-size: 17px;
}
.icon-button:hover { color: var(--mint); background: #1B2B36; border-color: var(--border); }
.chat-main { min-width: 0; display: flex; flex-direction: column; position: relative; }
.chat-header {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 19px 22px;
  min-height: 76px;
  border-bottom: 1px solid var(--border);
}
.chat-title { font-size: 16px; font-weight: 800; }
.chat-subtitle { margin-top: 5px; color: var(--muted); font-size: 10px; }
.header-tools { margin-left: auto; display: flex; align-items: center; gap: 13px; }
.connection-status { color: var(--muted); font-size: 10px; white-space: nowrap; }
.connection-status.live { color: var(--mint); }
.connection-status.offline { color: #FFB1A7; }
.search-input { width: 165px; padding: 9px 11px; border-radius: 9px; font-size: 11px; }
.chat-notice { padding: 0 22px; color: #FFB1A7; font-size: 12px; }
.chat-notice:empty { display: none; }
.messages-list {
  min-height: 0;
  flex: 1;
  overflow: auto;
  padding: 23px clamp(13px, 3vw, 35px);
  display: flex;
  flex-direction: column;
  gap: 15px;
  scrollbar-color: #304251 #101A27;
}
.welcome-block { margin: auto; text-align: center; max-width: 350px; }
.welcome-mark { margin: 0 auto 20px; width: 62px; height: 62px; font-size: 29px; }
.welcome-block h2 { font-size: 20px; }
.welcome-block p { color: var(--muted); font-size: 13px; line-height: 1.7; }
.message-row { display: flex; align-items: flex-start; gap: 10px; max-width: 86%; }
.message-row.own { margin-left: auto; flex-direction: row-reverse; }
.message-avatar {
  flex: 0 0 30px; width: 30px; height: 30px; display: grid; place-items: center;
  border-radius: 10px; background: #213541; border: 1px solid #354B5B;
  color: #C4D5DE; font-size: 11px; font-weight: 800;
}
.message-row.own .message-avatar { background: #164138; color: var(--mint); border-color: #2F6D60; }
.message-content { min-width: 0; }
.message-meta { display: flex; align-items: baseline; gap: 9px; margin-bottom: 5px; }
.message-row.own .message-meta { justify-content: flex-end; }
.message-author { color: #DAE6EA; font-size: 11px; font-weight: 800; }
.message-row.own .message-author { color: var(--mint); }
.message-time { color: #718697; font-size: 9px; }
.message-bubble {
  width: fit-content; max-width: 100%; padding: 11px 13px;
  border: 1px solid #2B3947; background: #182331;
  border-radius: 4px 13px 13px 13px; color: #E4EEF1;
  line-height: 1.65; font-size: 13px; overflow-wrap: anywhere; white-space: pre-wrap;
}
.message-row.own .message-bubble {
  margin-left: auto; background: #12342F; border-color: #28594F;
  border-radius: 13px 4px 13px 13px;
}
.composer { padding: 12px 19px 17px; border-top: 1px solid var(--border); background: #101A27; }
.composer textarea { resize: vertical; min-height: 47px; max-height: 140px; line-height: 1.5; font-size: 13px; }
.composer-footer { display: flex; align-items: center; gap: 12px; padding-top: 9px; color: #758A9A; font-size: 10px; }
.composer-footer > span:nth-child(2) { margin-left: auto; }
.send-button { min-height: 36px; padding: 8px 14px; }
.mobile-menu { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
@media (max-width: 760px) {
  .topbar { padding: 15px; }
  .chat-shell { width: calc(100% - 12px); height: calc(100vh - 91px); min-height: 500px; margin: 0 auto 10px; grid-template-columns: 1fr; position: relative; }
  .sidebar { display: none; position: absolute; z-index: 5; top: 0; bottom: 0; left: 0; width: min(290px, 88%); box-shadow: 15px 0 50px #0007; }
  .sidebar.mobile-open { display: flex; }
  .mobile-menu { display: grid; }
  .chat-header { padding: 13px 11px; gap: 8px; min-height: 67px; }
  .header-tools { gap: 7px; }
  .connection-status { display: none; }
  .search-input { width: 110px; }
  .messages-list { padding: 16px 10px; }
  .message-row { max-width: 94%; }
  .composer { padding: 10px; }
  .composer-footer { gap: 7px; flex-wrap: wrap; }
  .composer-footer > span:nth-child(2) { display: none; }
  .center-panel { padding: 25px 20px; margin-top: 15px; }
  .site-footer { padding: 12px; }
}

/* User search, direct messages, and moderation controls */
.people-label { margin-top: 23px; }
.people-search { width: 100%; margin-bottom: 7px; }
.people-results { display: grid; gap: 4px; max-height: 190px; overflow-y: auto; }
.people-hint { margin: 5px 8px; color: var(--muted); font-size: 11px; line-height: 1.5; overflow-wrap: anywhere; }
.person-button {
  display: flex; align-items: center; gap: 8px; width: 100%; min-width: 0;
  padding: 8px; border: 1px solid transparent; border-radius: 10px;
  background: transparent; color: var(--text); text-align: left;
}
.person-button:hover { background: #1B2A38; border-color: var(--border); }
.person-avatar {
  display: grid; place-items: center; flex: 0 0 28px; width: 28px; height: 28px;
  border-radius: 9px; background: #24374A; color: var(--purple); font-size: 11px; font-weight: 800;
}
.person-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; font-size: 11px; }
.person-action { color: var(--mint); font-size: 9px; white-space: nowrap; }
.admin-badge { color: #FFCF70 !important; font-size: 8px !important; letter-spacing: 1px; }
.message-delete {
  margin-left: 4px; padding: 3px 6px; border: 1px solid #74434A; border-radius: 6px;
  background: #351E27; color: #FFB1B7; font-size: 9px;
}
.message-delete:hover { background: #512631; }
.message-delete:disabled { opacity: .55; }


/* Group member directory and explicit administrator labels */
.members-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin: 18px 8px 8px;
}
.member-count {
  min-width: 22px;
  padding: 3px 7px;
  border: 1px solid #31554F;
  border-radius: 20px;
  background: #14342F;
  color: var(--mint);
  text-align: center;
  font-size: 10px;
  font-weight: 800;
}
.member-list {
  display: grid;
  gap: 3px;
  max-height: 210px;
  overflow-y: auto;
  scrollbar-color: #304251 #101A27;
}
.member-button { padding: 7px 6px; }
.member-button:disabled { cursor: default; opacity: 1; }
.member-button.member-self { background: #142A2B; }
.member-info { display: grid; flex: 1; min-width: 0; gap: 3px; }
.member-role {
  color: #FFCF70;
  font-size: 8px;
  font-weight: 850;
  letter-spacing: .65px;
}
.member-button .person-action { font-size: 10px; }
.admin-badge {
  width: fit-content;
  padding: 3px 6px;
  border: 1px solid #765C2C;
  border-radius: 5px;
  background: #332918;
  color: #FFCF70 !important;
  font-size: 8px !important;
  letter-spacing: .7px;
}