:root {
  --bg: #f6f7f9;
  --panel: #ffffff;
  --ink: #18202a;
  --muted: #697586;
  --line: #d7dde5;
  --accent: #1466ff;
  --accent-2: #15803d;
  --warn: #b45309;
  --danger: #b91c1c;
  --surface: #edf1f5;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--ink);
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  min-height: 36px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--panel);
  color: var(--ink);
  padding: 0 12px;
  cursor: pointer;
}

button.primary {
  border-color: var(--accent);
  background: var(--accent);
  color: #fff;
}

button.danger {
  border-color: var(--danger);
  color: var(--danger);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.55;
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--ink);
  padding: 9px 10px;
}

textarea {
  min-height: 92px;
  resize: vertical;
}

label {
  display: grid;
  gap: 5px;
  color: var(--muted);
  font-size: 13px;
}

.app {
  display: grid;
  grid-template-columns: 320px minmax(0, 1fr);
  min-height: 100vh;
}

.sidebar {
  border-right: 1px solid var(--line);
  background: var(--panel);
  padding: 20px;
  display: grid;
  gap: 18px;
  align-content: start;
}

.main {
  min-width: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
}

.topbar {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  padding: 14px 18px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

.topbar-main {
  display: grid;
  gap: 6px;
  min-width: 0;
}

.topbar-actions {
  justify-content: flex-end;
}

.workspace {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 460px;
  gap: 14px;
  padding: 14px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 14px;
}

.section {
  display: grid;
  gap: 10px;
}

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

.row.wrap {
  flex-wrap: wrap;
}

.grow {
  flex: 1 1 auto;
}

.title {
  margin: 0;
  font-size: 19px;
  letter-spacing: 0;
}

.subtle {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
}

.code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  letter-spacing: 0;
  border: 1px dashed var(--line);
  border-radius: 6px;
  padding: 8px 10px;
  background: var(--surface);
  word-break: break-all;
}

.badge {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  border-radius: 999px;
  padding: 0 9px;
  background: var(--surface);
  color: var(--muted);
  font-size: 12px;
  white-space: nowrap;
}

.badge.ok {
  color: var(--accent-2);
  background: #dcfce7;
}

.badge.warn {
  color: var(--warn);
  background: #ffedd5;
}

.badge.danger {
  color: var(--danger);
  background: #fee2e2;
}

.viewer {
  position: relative;
  overflow: hidden;
  min-height: 420px;
  background: #111827;
  border-radius: 8px;
  outline: none;
  display: grid;
  place-items: center;
}

.viewer img,
.viewer video {
  max-width: 100%;
  max-height: calc(100vh - 150px);
  object-fit: contain;
  display: block;
  user-select: none;
}

.viewer .empty {
  color: #d1d5db;
  text-align: center;
  max-width: 420px;
  line-height: 1.45;
  padding: 24px;
}

.viewer-overlay {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.remote-cursor {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid #fff;
  background: var(--accent);
  border-radius: 999px;
  transform: translate(-50%, -50%);
  box-shadow: 0 1px 8px rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

.side-tools {
  display: grid;
  gap: 12px;
  align-content: start;
  width: 460px;
  min-width: 460px;
  max-width: 460px;
  max-height: calc(100vh - 96px);
  overflow: auto;
  padding-right: 2px;
}

.app.panels-hidden .workspace {
  grid-template-columns: minmax(0, 1fr);
}

.app.panels-hidden .side-tools {
  display: none;
}

.side-panel {
  min-height: 0;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.metric-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  padding: 10px 12px;
  display: grid;
  gap: 4px;
}

.metric-card span {
  color: var(--muted);
  font-size: 12px;
}

.metric-card strong {
  font-size: 18px;
  font-weight: 700;
}

.status-grid,
.security-list {
  display: grid;
  gap: 8px;
}

.status-grid {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
}

.status-grid > span:nth-child(odd) {
  color: var(--muted);
  font-size: 13px;
}

.security-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  border-bottom: 1px solid var(--line);
  padding-bottom: 7px;
}

.security-row > span:first-child {
  color: var(--muted);
  font-size: 13px;
}

.log,
.chat {
  height: 180px;
  overflow: auto;
  display: grid;
  gap: 8px;
  align-content: start;
  padding-right: 4px;
}

.log-entry,
.chat-entry {
  border-left: 3px solid var(--line);
  padding-left: 8px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.35;
}

.tool-window,
.tool-group,
.subpanel {
  border-top: 1px solid var(--line);
  padding-top: 10px;
  display: grid;
  gap: 8px;
}

.tool-window h3,
.subpanel h3 {
  margin: 0;
  font-size: 14px;
  letter-spacing: 0;
}

.tool-group summary {
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
}

.compact {
  gap: 8px;
}

.tool-output {
  max-height: 340px;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #0f172a;
  color: #e5e7eb;
  padding: 10px;
  font: 12px/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
}

.tool-table {
  width: 100%;
  border-collapse: collapse;
  color: #e5e7eb;
}

.tool-table th,
.tool-table td {
  border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  padding: 5px 6px;
  text-align: left;
  vertical-align: top;
}

.tool-link {
  border: 0;
  min-height: 0;
  padding: 0;
  background: transparent;
  color: #93c5fd;
}

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

.switch {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--ink);
  font-size: 14px;
}

.switch input {
  width: auto;
}

.drop {
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 12px;
  background: var(--surface);
  display: grid;
  gap: 8px;
}

.peer-list {
  display: grid;
  gap: 8px;
}

.peer-row {
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 10px 12px;
  display: grid;
  gap: 8px;
  background: #fff;
}

.peer-row.active {
  border-color: #93c5fd;
  background: #eff6ff;
}

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

.peer-name {
  font-size: 14px;
  font-weight: 600;
}

.peer-meta {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.4;
}

.peer-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.peer-empty {
  border: 1px dashed var(--line);
  border-radius: 8px;
  padding: 12px;
  color: var(--muted);
  font-size: 13px;
  background: var(--surface);
}

.client-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 20px;
  display: grid;
  gap: 14px;
}

.client-grid {
  display: grid;
  grid-template-columns: 360px minmax(0, 1fr);
  gap: 14px;
}

.preview {
  min-height: 360px;
  background: #111827;
  border-radius: 8px;
  display: grid;
  place-items: center;
  overflow: hidden;
  position: relative;
}

.preview video,
.preview img {
  max-width: 100%;
  max-height: 70vh;
}

.notice {
  border: 1px solid #fed7aa;
  background: #fff7ed;
  color: #9a3412;
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 13px;
  line-height: 1.4;
}

@media (max-width: 980px) {
  .app,
  .workspace,
  .client-grid {
    grid-template-columns: 1fr;
  }

  .side-tools {
    width: auto;
    min-width: 0;
    max-width: none;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .viewer {
    min-height: 320px;
  }
}