*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0d1117; --surface: #161b22; --border: #30363d;
  --text: #c9d1d9; --text-dim: #8b949e; --text-bright: #f0f6fc;
  --green: #3fb950; --yellow: #d29922; --red: #f85149; --blue: #58a6ff; --purple: #bc8cff;
  --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
}

html, body { height: 100%; font-family: var(--font-sans); font-size: 14px; color: var(--text); background: var(--bg); }

.hidden { display: none !important; }

header {
  display: flex; align-items: center; gap: 12px;
  padding: 8px 16px; background: var(--surface); border-bottom: 1px solid var(--border);
}
header h1 { font-size: 16px; color: var(--text-bright); }
.config-origin { font-family: var(--font-mono); font-size: 12px; color: var(--text-dim); }

.lamp { font-size: 18px; line-height: 1; }
.lamp-green { color: var(--green); }
.lamp-yellow { color: var(--yellow); }
.lamp-yellow-blink { color: var(--yellow); animation: blink 1s step-end infinite; }
.lamp-red { color: var(--red); }
.lamp-red-blink { color: var(--red); animation: blink 1s step-end infinite; }
.lamp-gray { color: var(--text-dim); }

@keyframes blink { 50% { opacity: 0.3; } }

.view { padding: 24px; }

.join-form {
  max-width: 400px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px;
}
.join-form label { display: flex; flex-direction: column; gap: 4px; font-size: 13px; color: var(--text-dim); }
.join-form input {
  padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: 14px; font-family: var(--font-mono);
}
.join-form input:focus { outline: none; border-color: var(--blue); }
.join-form select {
  padding: 8px 12px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: 14px; font-family: var(--font-mono);
  cursor: pointer; appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b949e' d='M2 4l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 10px center; padding-right: 30px;
}
.join-form select:focus { outline: none; border-color: var(--blue); }
.input-row { display: flex; gap: 8px; }
.input-row input { flex: 1; }
button {
  padding: 8px 16px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--surface); color: var(--text); font-size: 14px; cursor: pointer;
}
button:hover { background: var(--border); }
button:disabled { opacity: 0.5; cursor: not-allowed; }
.join-form button[type="button"] {
  background: var(--green); color: #000; border-color: var(--green); font-weight: 600;
}
.join-form button[type="button"]:hover { background: #2ea043; }

.join-error {
  padding: 8px 12px; border-radius: 6px; background: rgba(248,81,73,0.15);
  color: var(--red); font-size: 13px; border: 1px solid rgba(248,81,73,0.3);
}

#topbar {
  display: flex; align-items: center; gap: 16px;
  padding: 8px 16px; background: var(--surface); border-bottom: 1px solid var(--border);
  font-size: 13px;
}
#topbar b { color: var(--text-bright); font-family: var(--font-mono); }
.topbar-actions { margin-left: auto; display: flex; gap: 8px; align-items: center; flex-shrink: 0; }
#btn-leave { background: var(--red); color: #fff; border-color: var(--red); font-size: 12px; padding: 4px 12px; }
#btn-reconnect { background: var(--yellow); color: #000; border-color: var(--yellow); font-size: 12px; padding: 4px 12px; font-weight: 600; white-space: nowrap; }
#btn-reconnect:hover { background: #e3b341; }

.room-body { display: flex; gap: 0; height: calc(100vh - 90px); }

aside#members {
  width: 220px; min-width: 180px; padding: 12px;
  background: var(--surface); border-right: 1px solid var(--border); overflow-y: auto;
}
aside#members h3 { font-size: 13px; color: var(--text-dim); margin-bottom: 8px; }

.member-row {
  display: flex; align-items: center; gap: 6px; padding: 4px 0;
  font-size: 12px; border-bottom: 1px solid var(--border);
}
.member-row.member-self { background: rgba(88,166,255,0.08); }
.member-tags { display: flex; gap: 3px; flex-shrink: 0; }
.member-nick { color: var(--text-bright); max-width: 80px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.member-pid { color: var(--text-dim); font-family: var(--font-mono); font-size: 10px; }
.member-badges { display: flex; gap: 2px; flex-wrap: wrap; margin-left: auto; }
.polite-tag {
  font-size: 10px; font-weight: 700; padding: 0 3px; border-radius: 3px;
  background: var(--purple); color: #000;
}

.host-tag {
  font-size: 10px; font-weight: 700; padding: 0 4px; border-radius: 3px;
  background: var(--yellow); color: #000;
}

.self-tag {
  font-size: 10px; font-weight: 700; padding: 0 3px; border-radius: 3px;
  background: var(--blue); color: #000;
}

.role-tag {
  font-size: 11px; font-weight: 700; padding: 1px 6px; border-radius: 4px;
}
.role-host {
  background: var(--yellow); color: #000;
}
.role-member {
  background: var(--border); color: var(--text-dim);
}
.role-degraded {
  background: #c0392b; color: #fff;
}

.badge {
  font-size: 9px; padding: 1px 4px; border-radius: 3px;
  background: var(--border); color: var(--text-dim); font-family: var(--font-mono);
  cursor: help;
}
.badge-waiting {
  background: transparent; color: var(--text-dim); font-style: italic;
}

main { flex: 1; overflow-y: auto; padding: 12px; }

#topology-section {
  background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
  margin-bottom: 12px; overflow: hidden;
}
.topology-header {
  font-size: 12px; font-weight: 600; color: var(--text-dim);
  padding: 6px 10px; border-bottom: 1px solid var(--border);
}
.topology-degraded {
  color: var(--red); background: rgba(248,81,73,0.08);
}
.topology-svg {
  display: block; width: 100%; height: 160px;
}

#status-bar { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 12px; }
.status-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
  padding: 8px; min-width: 200px; font-size: 12px;
}
.status-card-header { font-family: var(--font-mono); color: var(--blue); margin-bottom: 4px; font-weight: 600; display: flex; align-items: center; gap: 6px; }
.status-polite-tag { font-size: 10px; font-weight: 700; padding: 0 3px; border-radius: 3px; background: var(--purple); color: #000; }
.status-pair { font-size: 11px; color: var(--green); word-break: break-all; }
.status-row { display: flex; justify-content: space-between; gap: 8px; padding: 1px 0; }
.status-label { color: var(--text-dim); }
.status-value { font-family: var(--font-mono); font-weight: 600; }
.status-new { color: var(--text-dim); }
.status-gathering { color: var(--yellow); }
.status-checking { color: var(--yellow); }
.status-connected { color: var(--green); }
.status-completed { color: var(--green); }
.status-disconnected { color: var(--yellow); }
.status-failed { color: var(--red); }
.status-closed { color: var(--text-dim); }
.status-stable { color: var(--text-dim); }
.status-have_local_offer { color: var(--blue); }
.status-have_remote_offer { color: var(--blue); }
.status-open { color: var(--green); }
.status-connecting { color: var(--yellow); }

#chat { margin-bottom: 12px; }
#chat-messages {
  max-height: 200px; overflow-y: auto; padding: 8px;
  background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
}
.chat-msg { display: flex; gap: 8px; padding: 2px 0; font-size: 13px; }
.chat-msg.chat-self { color: var(--blue); }
.chat-time { color: var(--text-dim); font-size: 11px; font-family: var(--font-mono); }
.chat-nick { color: var(--purple); font-weight: 600; }
.chat-body { color: var(--text); }
.chat-input-row { display: flex; gap: 8px; margin-top: 8px; }
#chat-input {
  flex: 1; padding: 6px 10px; border: 1px solid var(--border); border-radius: 6px;
  background: var(--bg); color: var(--text); font-size: 13px;
}
#chat-input:focus { outline: none; border-color: var(--blue); }
#chat-send { font-size: 12px; padding: 6px 12px; }

.canvas-section {
  margin-bottom: 12px; background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
  padding: 12px;
}
.canvas-header {
  display: flex; align-items: center; gap: 10px; margin-bottom: 10px;
}
.canvas-title { font-size: 13px; font-weight: 600; color: var(--text-bright); }
.canvas-status { font-size: 11px; color: var(--text-dim); font-family: var(--font-mono); }
.btn-canvas-off {
  font-size: 11px; padding: 3px 10px; background: var(--green); color: #000;
  border-color: var(--green); font-weight: 600;
}
.btn-canvas-off:hover { background: #2ea043; }
.btn-canvas-on {
  font-size: 11px; padding: 3px 10px; background: var(--red); color: #fff;
  border-color: var(--red); font-weight: 600;
}
.btn-canvas-on:hover { background: #da3633; }
.btn-canvas-clear {
  font-size: 11px; padding: 3px 10px; background: var(--surface); color: var(--text);
  border-color: var(--border);
}
.canvas-body { display: flex; gap: 12px; flex-wrap: wrap; }
.canvas-local-wrap {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}

.canvas-label { font-size: 10px; color: var(--text-dim); }
.remote-videos { display: flex; gap: 12px; flex-wrap: wrap; }
.remote-video-wrap {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.remote-video-wrap video {
  border: 1px solid var(--border); border-radius: 4px; background: #000;
  width: 320px; height: 240px; object-fit: contain;
}
.remote-video-label { font-size: 10px; color: var(--text-dim); }

details {
  margin-bottom: 8px; background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
}
details summary {
  padding: 8px 12px; cursor: pointer; font-size: 13px; font-weight: 600; color: var(--text-bright);
  list-style: none;
}
details summary::before { content: '▸ '; color: var(--text-dim); }
details[open] summary::before { content: '▾ '; }
.panel-content {
  padding: 8px 12px; max-height: 400px; overflow-y: auto; font-size: 12px;
  font-family: var(--font-mono); border-top: 1px solid var(--border);
}
.panel-truncated { color: var(--yellow); font-size: 11px; margin-bottom: 4px; }

.timeline-filter {
  display: flex; gap: 12px; padding: 4px 8px; margin-bottom: 4px;
  border-bottom: 1px solid var(--border); font-size: 12px; color: var(--text-dim);
}
.timeline-filter label { display: flex; align-items: center; gap: 4px; }
.timeline-filter select {
  background: var(--surface); color: var(--text); border: 1px solid var(--border);
  border-radius: 3px; padding: 1px 4px; font-size: 11px; font-family: var(--font-mono);
}

.timeline-entry {
  display: flex; gap: 6px; padding: 1px 0; flex-wrap: wrap;
  border-bottom: 1px solid rgba(48,54,61,0.5);
}
.timeline-ts { color: var(--text-dim); min-width: 90px; }
.timeline-scope { color: var(--blue); min-width: 50px; }
.timeline-subject { color: var(--purple); min-width: 60px; }
.timeline-kind { color: var(--yellow); min-width: 100px; }
.timeline-arrow { color: var(--text-bright); }
.timeline-cause { color: var(--text-dim); font-size: 11px; }
.timeline-note { color: var(--text-dim); font-size: 10px; font-style: italic; }

.selected-pair {
  padding: 8px; background: rgba(63,185,80,0.1); border: 1px solid rgba(63,185,80,0.3);
  border-radius: 6px; margin-bottom: 8px;
}
.selected-pair-title { font-weight: 600; color: var(--green); margin-bottom: 4px; }
.selected-pair-info { font-size: 12px; word-break: break-all; }

.findings { margin-bottom: 8px; }
.finding { padding: 4px 8px; margin: 2px 0; border-radius: 4px; font-size: 12px; }
.finding-fail { background: rgba(248,81,73,0.15); color: var(--red); border: 1px solid rgba(248,81,73,0.3); }
.finding-warn { background: rgba(210,153,34,0.15); color: var(--yellow); border: 1px solid rgba(210,153,34,0.3); }
.finding-info { background: rgba(88,166,255,0.1); color: var(--blue); border: 1px solid rgba(88,166,255,0.2); }

.candidate-section { color: var(--text-dim); margin: 4px 0; }
.candidate-errors { margin-top: 4px; }
.candidate-error { color: var(--red); font-size: 11px; }
.candidate-signaling { margin-top: 4px; }
.candidate-signaling-title { color: var(--purple); font-size: 11px; font-weight: 600; margin-bottom: 2px; }
.candidate-signaling-row { color: var(--text-dim); font-size: 11px; padding: 0 4px; white-space: pre; }

.sdp-header { font-weight: 600; color: var(--blue); margin: 8px 0 2px; }
.sdp-body { margin-bottom: 12px; }
.sdp-truncated { color: var(--yellow); font-size: 11px; padding: 2px 0; }
.sdp-line { padding: 0 4px; white-space: pre; }
.sdp-version, .sdp-origin { color: var(--text-dim); }
.sdp-session { color: var(--text-dim); }
.sdp-media { color: var(--green); font-weight: 600; }
.sdp-connection { color: var(--text-dim); }
.sdp-ice-ufrag, .sdp-ice-pwd { color: var(--yellow); }
.sdp-fingerprint { color: var(--purple); }
.sdp-candidate { color: var(--blue); }
.sdp-setup { color: var(--yellow); }
.sdp-mid { color: var(--text-dim); }
.sdp-direction { color: var(--green); }
.sdp-attr { color: var(--text-dim); }

.wire-entry { display: flex; gap: 6px; padding: 1px 0; border-bottom: 1px solid rgba(48,54,61,0.5); }
.wire-ts { color: var(--text-dim); min-width: 90px; }
.wire-dir { min-width: 12px; }
.wire-in .wire-dir { color: var(--green); }
.wire-out .wire-dir { color: var(--blue); }
.wire-dc-in .wire-dir { color: #7ee787; }
.wire-dc-out .wire-dir { color: #79c0ff; }
.wire-close .wire-dir { color: var(--red); }
.wire-raw { color: var(--text); word-break: break-all; font-size: 11px; }
.wire-outcome { color: var(--yellow); font-size: 10px; margin-right: 4px; }

.unreachable-banner {
  padding: 12px; margin: 8px 0; background: rgba(248,81,73,0.15);
  border: 1px solid var(--red); border-radius: 6px;
}
.unreachable-title { font-weight: 700; color: var(--red); font-size: 14px; margin-bottom: 4px; }
.unreachable-suggestion { color: var(--text); font-size: 12px; margin: 2px 0; }

#toast {
  position: fixed; bottom: 16px; right: 16px; z-index: 1000;
  display: flex; flex-direction: column; gap: 8px;
}
.toast-item {
  padding: 8px 16px; background: var(--surface); border: 1px solid var(--border);
  border-radius: 6px; color: var(--text); font-size: 13px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.4);
}

.dev-log-bar {
  display: flex; align-items: center; gap: 6px; margin-left: auto;
}
.dev-log-label {
  font-size: 11px; color: var(--yellow); font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.5px;
}
.dev-log-btn {
  padding: 2px 8px; font-size: 11px; border-radius: 4px;
  background: var(--border); color: var(--text); border: 1px solid var(--border);
  font-family: var(--font-mono); cursor: pointer;
}
.dev-log-btn:hover { background: var(--yellow); color: #000; border-color: var(--yellow); }

.topbar-rtt { font-family: var(--font-mono); font-size: 12px; }
.topbar-rtt-low { color: var(--green); }
.topbar-rtt-mid { color: var(--yellow); }
.topbar-rtt-high { color: var(--red); }

.degraded-banner {
  padding: 6px 16px; background: rgba(248,81,73,0.15);
  border-bottom: 1px solid rgba(248,81,73,0.4);
  color: var(--red); font-size: 13px; font-weight: 600;
  text-align: center; animation: degraded-pulse 2s ease-in-out infinite;
}
@keyframes degraded-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.7; } }

.member-meta { display: flex; gap: 6px; margin-left: 4px; flex-wrap: wrap; }
.meta-item { font-size: 10px; color: var(--text-dim); font-family: var(--font-mono); }
.meta-warn { color: var(--red); }

.status-net { font-size: 11px; color: var(--text-bright); word-break: break-all; }

.main-tabs {
  display: flex; gap: 0; border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
}
.main-tab {
  padding: 6px 20px; border: none; border-bottom: 2px solid transparent;
  background: transparent; color: var(--text-dim); font-size: 13px;
  font-weight: 600; cursor: pointer; transition: color 0.15s, border-color 0.15s;
}
.main-tab:hover { color: var(--text); background: transparent; }
.main-tab.active {
  color: var(--blue); border-bottom-color: var(--blue);
}
.tab-panel { min-height: 0; }

.learn-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.learn-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 6px;
  overflow: hidden; display: flex; flex-direction: column;
}
.learn-card-wide { grid-column: 1 / -1; }

.learn-card-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px 12px; border-bottom: 1px solid var(--border);
}
.learn-card-title {
  font-size: 13px; font-weight: 600; color: var(--text-bright);
}
.learn-card-badge {
  font-size: 10px; font-weight: 700; padding: 1px 6px; border-radius: 3px;
  background: var(--border); color: var(--text-dim); font-family: var(--font-mono);
}
.learn-card-badge.badge-ok { background: rgba(63,185,80,0.2); color: var(--green); }
.learn-card-badge.badge-warn { background: rgba(210,153,34,0.2); color: var(--yellow); }
.learn-card-badge.badge-fail { background: rgba(248,81,73,0.2); color: var(--red); }
.learn-card-badge.badge-active { background: rgba(88,166,255,0.2); color: var(--blue); }

.learn-card-body {
  padding: 8px 12px; flex: 1; min-height: 0;
}
.learn-svg {
  display: block; width: 100%; height: 180px;
}
.learn-canvas {
  display: block; width: 100%; height: 180px;
}
.learn-card-note {
  font-size: 11px; color: var(--text-dim); margin-top: 6px;
  font-family: var(--font-mono);
}
.learn-card-explain {
  padding: 8px 12px; border-top: 1px solid var(--border);
  font-size: 11px; color: var(--text-dim); line-height: 1.5;
}
.learn-card-explain b { color: var(--yellow); }
.learn-card-explain code {
  background: var(--border); padding: 0 3px; border-radius: 2px;
  font-family: var(--font-mono); font-size: 10px; color: var(--text);
}
.learn-card-explain em { color: var(--green); font-style: normal; font-weight: 600; }

.learn-matrix {
  font-family: var(--font-mono); font-size: 10px;
  overflow: auto; max-height: 180px;
}
.learn-matrix table { border-collapse: collapse; width: 100%; }
.learn-matrix th {
  background: var(--border); color: var(--text-dim); padding: 3px 6px;
  font-weight: 600; white-space: nowrap; text-align: left;
}
.learn-matrix td {
  padding: 3px 6px; border: 1px solid rgba(48,54,61,0.5);
  white-space: nowrap; text-align: center;
}
.learn-matrix .mx-waiting { color: var(--text-dim); }
.learn-matrix .mx-incompat { color: #484f58; font-size: 9px; }
.learn-matrix .mx-in-progress { color: var(--yellow); }
.learn-matrix .mx-succeeded { color: var(--green); font-weight: 600; }
.learn-matrix .mx-failed { color: var(--red); }
.learn-matrix .mx-nominated { color: var(--green); font-weight: 700; background: rgba(63,185,80,0.08); }
.learn-matrix .mx-label { color: var(--text); text-align: left; font-weight: 600; }
.learn-matrix .mx-selected-info {
  margin-top: 6px; padding: 4px 6px; border-radius: 3px;
  background: rgba(63,185,80,0.08); font-size: 10px; color: var(--text);
}
.learn-matrix .mx-selected-info b { color: var(--green); }
.learn-matrix .mx-legend {
  margin-top: 6px; padding: 4px 6px; font-size: 10px; color: var(--text-dim);
  display: flex; flex-wrap: wrap; gap: 4px 10px;
}
.learn-matrix .mx-legend span { white-space: nowrap; }
.learn-matrix .mx-rtt { color: var(--blue); font-weight: 600; }

@media (max-width: 768px) {
  .room-body { flex-direction: column; height: auto; }
  aside#members { width: 100%; min-width: 0; border-right: none; border-bottom: 1px solid var(--border); max-height: 200px; }
  #topbar { flex-wrap: wrap; gap: 8px; }
  .topbar-actions { margin-left: 0; }
  .join-form { max-width: 100%; }
  .canvas-body { flex-direction: column; }
  .canvas-local-wrap video, .remote-video-wrap video { width: 100%; max-width: 320px; height: auto; }
  .learn-grid { grid-template-columns: 1fr; }
}