:root {
  color-scheme: dark;
  --bg: #101418;
  --rail: #171b20;
  --panel: #1d232b;
  --panel-2: #242c35;
  --field: #0d1117;
  --text: #f4f7f8;
  --muted: #a4afb8;
  --faint: #76818c;
  --line: #333d48;
  --accent: #41c98f;
  --accent-ink: #07130d;
  --blue: #70a9ff;
  --gold: #d9b35f;
  --danger: #ff6f6f;
  --shadow: rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  overflow: hidden;
}

.app-banner {
  position: sticky;
  top: 0;
  z-index: 20;
  border-bottom: 1px solid rgba(217, 179, 95, 0.45);
  background: #271f10;
  color: #ffe2a1;
  font-size: 13px;
  padding: 9px 14px;
  text-align: center;
}

button,
input,
textarea {
  font: inherit;
  min-width: 0;
}

button {
  min-height: 38px;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--panel-2);
  color: var(--text);
  cursor: pointer;
  padding: 8px 12px;
}

button:hover {
  border-color: var(--accent);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

input,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 7px;
  background: var(--field);
  color: var(--text);
  outline: none;
  padding: 10px 11px;
}

input:focus,
textarea:focus {
  border-color: var(--blue);
}

textarea {
  min-height: 42px;
  max-height: 148px;
  resize: none;
}

label {
  display: grid;
  gap: 6px;
  color: var(--muted);
  font-size: 13px;
}

h1,
h2,
p {
  margin: 0;
}

h1 {
  font-size: 21px;
  line-height: 1.1;
}

h2 {
  font-size: 15px;
  line-height: 1.2;
}

.app-shell {
  display: grid;
  grid-template-columns:
    minmax(260px, clamp(280px, 23vw, 360px))
    minmax(0, 1fr)
    minmax(260px, clamp(280px, 24vw, 360px));
  height: 100vh;
  min-height: 0;
}

@supports (height: 100dvh) {
  .app-shell {
    height: 100dvh;
  }
}

.rail,
.activity {
  min-height: 0;
  overflow: auto;
  background: var(--rail);
  border-color: var(--line);
  border-style: solid;
}

.rail {
  border-width: 0 1px 0 0;
  padding: 16px;
}

.activity {
  border-width: 0 0 0 1px;
  padding: 16px;
  display: grid;
  align-content: start;
  gap: 14px;
}

.brand {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 11px;
  margin-bottom: 14px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
}

#status {
  color: var(--muted);
  font-size: 13px;
  margin-top: 3px;
}

.surface {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 10px 24px var(--shadow);
  margin-bottom: 14px;
  padding: 14px;
}

.stack {
  display: grid;
  gap: 12px;
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  min-width: 0;
}

.conversation-tools {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.conversation-tools .quiet-button {
  min-height: 30px;
  padding: 4px 9px;
}

.pill {
  border: 1px solid var(--line);
  border-radius: 999px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1;
  padding: 6px 8px;
}

.pill.good {
  border-color: rgba(65, 201, 143, 0.48);
  color: var(--accent);
}

.pill.warn {
  border-color: rgba(217, 179, 95, 0.5);
  color: var(--gold);
}

.pill.bad {
  border-color: rgba(255, 111, 111, 0.5);
  color: var(--danger);
}

.split-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 9px;
}

.quick-actions {
  display: grid;
  gap: 8px;
}

.quick-actions button {
  min-height: 42px;
  text-align: left;
}

.primary-button {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
}

.quiet-button,
.icon-button {
  background: transparent;
}

.icon-button {
  display: grid;
  place-items: center;
  min-width: 38px;
  padding: 8px;
}

.invite-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
}

.direct-row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 8px;
}

.advanced-room {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141a21;
  padding: 0;
}

.advanced-room summary {
  color: var(--muted);
  cursor: pointer;
  font-size: 13px;
  list-style-position: inside;
  padding: 10px 11px;
}

.advanced-room label {
  border-top: 1px solid var(--line);
  padding: 10px;
}

#inviteLink {
  color: var(--muted);
  font-size: 12px;
}

.peers,
.conversations,
.files,
.remote-videos {
  display: grid;
  gap: 8px;
}

.peer,
.conversation-item,
.file-card,
.file-hint {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #141a21;
  padding: 10px;
  overflow-wrap: anywhere;
}

.conversation-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 8px;
}

.conversation-item.active {
  border-color: rgba(65, 201, 143, 0.62);
}

.conversation-main {
  min-width: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  padding: 0;
  text-align: left;
}

.conversation-main:hover {
  border-color: transparent;
}

.conversation-title {
  display: block;
  font-size: 14px;
  font-weight: 700;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation-preview {
  color: var(--muted);
  display: block;
  font-size: 12px;
  margin-top: 4px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.conversation-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: flex-end;
}

.conversation-action {
  min-height: 30px;
  padding: 4px 8px;
}

.file-hint {
  color: var(--muted);
  font-size: 13px;
}

.file-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
}

.file-actions button {
  min-height: 32px;
  padding: 5px 10px;
}

.peer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.peer-top button {
  min-height: 30px;
  padding: 4px 10px;
}

.peer strong,
.file-card strong {
  display: block;
  font-size: 14px;
}

.peer span,
.file-card span {
  color: var(--muted);
  display: block;
  font-size: 12px;
  margin-top: 4px;
}

.conversation {
  min-width: 0;
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background: #0f1318;
}

.room-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-bottom: 1px solid var(--line);
  padding: 15px 18px;
  min-width: 0;
}

.eyebrow {
  color: var(--faint);
  font-size: 12px;
  margin-bottom: 4px;
  text-transform: uppercase;
}

.room-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.messages {
  min-height: 0;
  overflow: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
}

.message {
  align-self: flex-start;
  max-width: min(72%, 760px);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  padding: 9px 11px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.message.local {
  align-self: flex-end;
  border-color: rgba(65, 201, 143, 0.55);
}

.message.system {
  align-self: center;
  max-width: 100%;
  color: var(--muted);
  background: transparent;
  border: 0;
  font-size: 13px;
}

.message-meta {
  color: var(--muted);
  display: block;
  font-size: 12px;
  margin-bottom: 4px;
}

.composer {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 10px;
  border-top: 1px solid var(--line);
  padding: 12px;
}

video {
  width: 100%;
  aspect-ratio: 16 / 10;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #05080b;
}

.remote-videos:empty::before {
  content: "No active video";
  color: var(--muted);
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 18px;
  text-align: center;
}

a {
  color: var(--blue);
}

.toast-layer {
  bottom: 18px;
  display: grid;
  gap: 8px;
  max-width: min(420px, calc(100vw - 28px));
  position: fixed;
  right: 18px;
  z-index: 50;
}

.toast {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #182028;
  box-shadow: 0 12px 30px var(--shadow);
  color: var(--text);
  font-size: 13px;
  padding: 10px 12px;
}

.toast.success {
  border-color: rgba(65, 201, 143, 0.5);
}

.toast.warning {
  border-color: rgba(217, 179, 95, 0.5);
}

.toast.error {
  border-color: rgba(255, 111, 111, 0.5);
}

.blocking-screen {
  align-items: center;
  background: rgba(5, 8, 11, 0.76);
  display: grid;
  inset: 0;
  justify-items: center;
  padding: 18px;
  position: fixed;
  z-index: 60;
}

.blocking-screen[hidden] {
  display: none;
}

.blocking-panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 18px 42px var(--shadow);
  display: grid;
  gap: 14px;
  max-width: 430px;
  padding: 18px;
  width: 100%;
}

.blocking-panel p {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.45;
}

@media (max-width: 1120px) {
  body {
    overflow: auto;
  }

  .app-shell {
    grid-template-columns: minmax(260px, 340px) minmax(0, 1fr);
    height: auto;
    min-height: 100vh;
  }

  @supports (min-height: 100dvh) {
    .app-shell {
      min-height: 100dvh;
    }
  }

  .activity {
    grid-column: 1 / -1;
    border-width: 1px 0 0 0;
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .rail,
  .activity {
    border-width: 0 0 1px 0;
    padding: 12px;
  }

  .conversation {
    min-height: 72vh;
  }

  .room-bar,
  .composer {
    align-items: stretch;
  }

  .room-bar {
    display: grid;
  }

  .room-actions,
  .activity {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .composer {
    grid-template-columns: auto 1fr;
  }

  #sendBtn {
    grid-column: 1 / -1;
  }

  .message {
    max-width: 92%;
  }

  .toast-layer {
    bottom: 10px;
    left: 10px;
    right: 10px;
    max-width: none;
  }
}

@media (max-width: 520px) {
  button {
    padding-inline: 10px;
  }

  .brand {
    grid-template-columns: auto 1fr;
  }

  #connectBtn {
    grid-column: 1 / -1;
  }

  .surface {
    padding: 12px;
  }

  .section-head {
    align-items: flex-start;
    display: grid;
  }

  .conversation-tools {
    justify-content: start;
  }

  .direct-row,
  .invite-row {
    grid-template-columns: 1fr;
  }

  .direct-row button,
  .invite-row button {
    width: 100%;
  }

  .conversation-item {
    grid-template-columns: 1fr;
  }

  .conversation-actions {
    justify-content: stretch;
  }

  .conversation-action {
    flex: 1;
  }

  .activity,
  .room-actions {
    grid-template-columns: 1fr;
  }

  .room-bar,
  .messages,
  .composer {
    padding-inline: 10px;
  }

  .composer {
    grid-template-columns: auto 1fr;
  }

  #sendBtn {
    grid-column: 1 / -1;
  }
}

@media (max-width: 360px) {
  h1 {
    font-size: 18px;
  }

  .rail,
  .activity {
    padding: 9px;
  }

  .message {
    max-width: 100%;
  }

  .composer {
    grid-template-columns: 1fr;
  }

  .icon-button,
  #sendBtn {
    width: 100%;
  }
}