:root {
  --bg: #14171c;
  --surface: #1b1f26;
  --border: #2a2f38;
  --ink: #e7e9ed;
  --ink-dim: #9aa2af;
  --accent: #3fa796;
  --accent-ink: #06211d;
  --danger: #d9634f;
  --radius: 6px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  line-height: 1.5;
}

.auth-card {
  max-width: 380px;
  margin: 12vh auto 0;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.auth-card h1 {
  font-size: 1.4rem;
  margin: 0 0 8px;
}

.auth-card p {
  color: var(--ink-dim);
  margin: 0 0 20px;
  font-size: 0.95rem;
}

.auth-card form + form {
  margin-top: 16px;
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--ink-dim);
  margin-bottom: 6px;
}

input[type="email"],
input[type="text"] {
  width: 100%;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--ink);
  font-size: 1rem;
  margin-bottom: 16px;
}

input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

button {
  width: 100%;
  padding: 10px 12px;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.08);
}

.link-button {
  background: none;
  color: var(--ink-dim);
  font-weight: 400;
  text-decoration: underline;
}

.link-button:hover {
  color: var(--ink);
  filter: none;
}

.error {
  color: var(--danger);
  font-size: 0.9rem;
  margin: -8px 0 16px;
}

.room-error {
  max-width: 480px;
  margin: 12vh auto 0;
  padding: 16px 20px;
  background: var(--surface);
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  color: var(--danger);
  font-size: 0.95rem;
  text-align: center;
}

.hidden {
  display: none !important;
}

a.button {
  display: block;
  text-align: center;
  text-decoration: none;
  width: 100%;
  padding: 10px 12px;
  background: var(--accent);
  color: var(--accent-ink);
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-bottom: 20px;
}

a.button:hover {
  filter: brightness(1.08);
}

button.secondary {
  background: var(--border);
  color: var(--ink);
}

button.danger {
  background: var(--danger);
  color: #fff;
}

button.active {
  background: var(--danger);
  color: #fff;
}

.copy-row {
  display: flex;
  gap: 8px;
  margin-bottom: 20px;
}

.copy-row input {
  margin-bottom: 0;
  flex: 1;
}

.copy-row button {
  width: auto;
  padding: 10px 14px;
  white-space: nowrap;
}

.auth-confirm h2 {
  font-size: 1.2rem;
  margin: 0 0 8px;
}

.auth-confirm p {
  color: var(--ink-dim);
  margin: 0;
}

.call-ui {
  display: flex;
  flex-direction: column;
  height: 100vh;
}

.conn-status {
  text-align: center;
  padding: 6px 12px;
  font-size: 0.85rem;
  font-weight: 600;
  background: #4a3a1a;
  color: #f0c766;
}

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

.header-actions {
  display: flex;
  gap: 8px;
}

.room-header button {
  width: auto;
  padding: 8px 16px;
}

.call-body {
  flex: 1;
  display: flex;
  min-height: 0;
}

.video-grid {
  flex: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  align-content: start;
  gap: 12px;
  padding: 12px;
  overflow-y: auto;
}

.tile {
  position: relative;
}

.tile video {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius);
  object-fit: cover;
  display: block;
}

.tile-label {
  position: absolute;
  left: 8px;
  bottom: 8px;
  padding: 2px 8px;
  background: rgba(0, 0, 0, 0.55);
  color: #fff;
  font-size: 0.8rem;
  border-radius: 4px;
}

.chat-panel {
  width: 280px;
  flex-shrink: 0;
  display: flex;
  flex-direction: column;
  border-left: 1px solid var(--border);
  background: var(--surface);
}

.chat-log {
  flex: 1;
  overflow-y: auto;
  padding: 12px;
  font-size: 0.9rem;
}

.chat-line {
  margin-bottom: 8px;
  word-wrap: break-word;
}

.chat-line strong {
  color: var(--ink-dim);
}

.chat-form {
  display: flex;
  gap: 8px;
  padding: 12px;
  border-top: 1px solid var(--border);
}

.chat-form input {
  flex: 1;
  margin-bottom: 0;
}

.chat-form button {
  width: auto;
  padding: 10px 14px;
}

.controls-bar {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 12px;
  padding: 12px 20px;
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.controls-bar button {
  width: auto;
  padding: 8px 16px;
  background: var(--border);
}

.device-picker {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin: 0;
}

.device-picker span {
  font-size: 0.8rem;
  color: var(--ink-dim);
}

.device-picker select {
  padding: 8px 10px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--ink);
}

.lobby-card {
  max-width: 420px;
  margin: 6vh auto 0;
  padding: 32px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.lobby-card h1 {
  font-size: 1.4rem;
  margin: 0 0 16px;
}

#lobby-preview {
  width: 100%;
  aspect-ratio: 4 / 3;
  background: #000;
  border-radius: var(--radius);
  object-fit: cover;
  margin-bottom: 16px;
}

.checkbox-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox-row input {
  width: auto;
  margin: 0;
}

.lobby-status {
  color: var(--ink-dim);
  font-size: 0.9rem;
  min-height: 1.2em;
  margin: 12px 0 0;
}