:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
  color: #292d33;
  background: #fff;
  font-size: 13px;
  color-scheme: light;
  --accent: #3269b7;
  --muted: #777d85;
  --line: #e4e6e9;
}
* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; }
body { overflow: hidden; }
[hidden] { display: none !important; }
button, input, select { font: inherit; }
button, summary, input, select { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 2px solid #7194c6; outline-offset: 2px; }
#app { width: 100%; height: 100vh; height: 100dvh; display: flex; flex-direction: column; }
.app-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 8px 16px; padding: 12px 20px; border-bottom: 1px solid var(--line); flex: none; }
.brand, .header-right { display: flex; align-items: center; gap: 10px; min-width: 0; }
.brand-logo { display: block; width: 28px; height: 28px; }
h1 { margin: 0; font-size: 16px; font-weight: 600; line-height: 1.5; white-space: nowrap; }
h2 { margin: 0; font-size: 13px; font-weight: 600; }
.connection { color: var(--muted); font-size: 12px; white-space: nowrap; }
.connection[data-state="online"] { color: #397557; }
.connection[data-state="connecting"] { color: #8a682d; }
.connection[data-state="offline"] { color: #a15149; }
#details-toggle { display: none; }
main { display: grid; grid-template-columns: 270px minmax(0, 1fr); flex: 1; min-height: 0; }
aside { min-width: 0; min-height: 0; overflow: auto; overscroll-behavior: contain; padding: 22px 20px; border-right: 1px solid var(--line); }
#sidebar-title { margin-bottom: 20px; }
fieldset { border: 0; margin: 0; padding: 0; min-width: 0; }
label { display: block; margin: 16px 0 7px; font-size: 12px; }
fieldset > label:first-child { margin-top: 0; }
.optional { color: var(--muted); margin-left: 4px; font-size: 11px; }
input:not([type="checkbox"]), select { display: block; width: 100%; height: 36px; min-width: 0; border: 1px solid #d7dade; border-radius: 4px; padding: 7px 9px; background: #fff; color: inherit; }
input:not([type="checkbox"]):focus, select:focus { border-color: var(--accent); outline: 1px solid var(--accent); }
input:disabled, select:disabled { background: #f5f5f5; color: #999; }
input::placeholder { color: #92969c; }
#device-id, #session-device-id { font-variant-numeric: tabular-nums; }
.password-field { position: relative; }
.password-field input { padding-right: 48px; }
.password-field button { position: absolute; right: 2px; top: 2px; height: 32px; min-height: 32px; padding: 0 8px; border: 0; background: transparent; color: var(--muted); }
.field-hint, .privacy, .session-note { color: var(--muted); font-size: 11px; line-height: 1.7; margin: 7px 0 0; }
.preferences { border-top: 1px solid var(--line); margin-top: 20px; padding-top: 7px; }
details { font-size: 12px; }
summary { padding: 9px 0; cursor: pointer; color: #666d76; }
summary::marker { font-size: 10px; }
.checks { padding-bottom: 10px; }
.checks label { display: flex; align-items: flex-start; gap: 8px; margin-top: 13px; font-size: 12px; line-height: 1.5; cursor: pointer; }
.checks label:has(input:disabled) { color: #999; cursor: default; }
.checks small { display: block; margin-top: 2px; color: var(--muted); font-size: 11px; }
input[type="checkbox"] { width: 14px; height: 14px; flex: none; margin: 2px 0 0; accent-color: var(--accent); }
.row { display: flex; gap: 12px; }
.row > div { flex: 1; min-width: 0; }
button { display: inline-flex; align-items: center; justify-content: center; min-height: 32px; padding: 6px 10px; border: 1px solid #d9dce0; border-radius: 4px; background: #fff; color: #4d535c; font-size: 12px; cursor: pointer; white-space: nowrap; }
button:not(:disabled):hover { background: #f3f4f5; border-color: #bfc4cb; }
button:not(:disabled):active { background: #e9ebee; }
button:disabled { cursor: default; color: #a3a7ad; background: #fafafa; border-color: #e7e9eb; }
.primary { width: 100%; min-height: 36px; background: var(--accent); color: #fff; border-color: var(--accent); margin-top: 20px; }
.primary:not(:disabled):hover { background: #285b9f; border-color: #285b9f; }
.privacy { margin-top: 12px; }
#error { flex: none; max-height: 25%; overflow: auto; padding: 10px 20px; background: #fff5f2; border-bottom: 1px solid #edddd6; color: #964a37; font-size: 12px; line-height: 1.6; overflow-wrap: anywhere; }
.device-card strong { display: block; font-size: 14px; font-weight: 500; overflow-wrap: anywhere; }
.device-card > span { display: block; margin-top: 5px; color: var(--muted); font-size: 12px; }
.session-details { margin: 20px 0 0; font-size: 12px; }
.session-details > div { display: flex; justify-content: space-between; gap: 12px; padding: 11px 0; border-bottom: 1px solid #eee; }
.session-details dt { color: var(--muted); flex: none; }
.session-details dd { margin: 0; text-align: right; overflow-wrap: anywhere; }
#session-agent[data-paused="true"] { color: #956e2d; }
.session-note { margin-top: 18px; }
.workspace { display: flex; flex-direction: column; gap: 10px; min-width: 0; min-height: 0; overflow: auto; padding: 16px; background: #f6f7f8; }
.viewer-card { display: flex; flex-direction: column; flex: 1; min-height: 160px; min-width: 0; background: #fff; border: 1px solid var(--line); border-radius: 5px; overflow: hidden; }
.viewer-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 8px 12px; padding: 9px 12px; flex: none; }
.viewer-title { display: flex; align-items: center; gap: 10px; min-width: 0; flex: 1; }
.viewer-title h2 { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
#video-state { color: var(--muted); font-size: 11px; white-space: nowrap; flex: none; }
#video-state[data-state="stale"] { color: #956e2d; }
.viewer-controls { display: flex; gap: 6px; flex-wrap: wrap; }
.danger:not(:disabled) { color: #9a4e47; }
.danger:not(:disabled):hover { border-color: #d6b4ae; background: #fff6f4; }
/* The screen takes the remaining panel height; object-fit preserves the remote aspect ratio. */
.screen { position: relative; flex: 1; min-height: 60px; width: 100%; display: flex; align-items: center; justify-content: center; overflow: hidden; isolation: isolate; border-radius: 8px; background: #17191c; }
.screen canvas { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
/* Overlay the control indicator so toggling control never resizes the video. */
.control-halo { display: none; }
#app[data-controlling="true"] .screen::before,
#app[data-controlling="true"] .screen::after { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; }
#app[data-controlling="true"] .screen::before { z-index: 1; box-shadow: inset 0 0 10px #3976ff40, inset 0 0 3px #8ccaff70; }
#app[data-controlling="true"] .control-halo {
  --halo-spread: 14px;
  display: block;
  position: absolute;
  inset: 0;
  z-index: 2;
  overflow: hidden;
  border-radius: inherit;
  pointer-events: none;
  /* Fade the light inward at the edges, leaving the desktop itself clear. */
  mask-image:
    linear-gradient(to bottom, #000, #0007 4px, transparent var(--halo-spread), transparent calc(100% - var(--halo-spread)), #0007 calc(100% - 4px), #000),
    linear-gradient(to right, #000, #0007 4px, transparent var(--halo-spread), transparent calc(100% - var(--halo-spread)), #0007 calc(100% - 4px), #000);
}
.control-halo::before {
  content: "";
  position: absolute;
  inset: -22%;
  background:
    radial-gradient(ellipse 32% 38% at 24% 26%, #d5f3ff 0%, #76c4ff 20%, #427bff80 50%, transparent 100%),
    radial-gradient(ellipse 38% 40% at 78% 75%, #c4d7ff 0%, #637cff 24%, #436bff70 60%, transparent 100%),
    linear-gradient(125deg, #3c8aff70, #687dff50 55%, #4ab5ff80);
  filter: blur(8px);
  opacity: .9;
  /* Move a cached light layer rather than repainting an animated gradient. */
  animation: control-halo-drift 9s ease-in-out infinite alternate;
  will-change: transform, opacity;
}
#app[data-controlling="true"] .screen::after {
  z-index: 3;
  padding: 1px;
  background: linear-gradient(125deg, #dbf6ffb0, #5e98ff70 30%, #c2e9ffc0 53%, #7e9dff80 75%, #b0e6ffb0);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
}
@keyframes control-halo-drift {
  0% { transform: translate3d(-7%, -5%, 0) scale(1); opacity: .7; }
  50% { opacity: 1; }
  100% { transform: translate3d(7%, 5%, 0) scale(1.05); opacity: .85; }
}
@media (prefers-reduced-motion: reduce) {
  .control-halo::before { animation: none; will-change: auto; }
}
#empty { text-align: center; padding: 16px; max-width: 100%; color: #b4b7bd; }
#empty h3 { font-size: 14px; font-weight: 400; margin: 0 0 8px; }
#empty p { color: #7e848e; font-size: 12px; line-height: 1.7; margin: 0; }
.stale { position: absolute; left: 12px; bottom: 12px; padding: 7px 10px; background: #25272cdd; color: #e2c495; border-radius: 3px; font-size: 11px; }
.telemetry { display: flex; align-items: center; flex-wrap: wrap; gap: 7px 18px; padding: 9px 12px; flex: none; color: var(--muted); font-size: 11px; }
.stream-metrics { display: flex; gap: 14px; font-variant-numeric: tabular-nums; }
#permission { margin-left: auto; }
#permission[data-state="paused"] { color: #956e2d; }
.panel-status { flex: none; font-size: 12px; line-height: 1.6; color: var(--muted); margin: 0; }
.video-options { display: flex; flex-wrap: wrap; gap: 8px; flex: none; }
.video-options:not(:has(button:not([hidden]))) { display: none; }
.focus-mode main { grid-template-columns: minmax(0, 1fr); }
.focus-mode .app-header { display: none; }
.focus-mode aside, .focus-mode #details-toggle { display: none !important; }
@media (max-width: 760px) {
  .app-header { padding: 10px 14px; }
  main { display: flex; flex-direction: column; }
  aside { flex: 1; border-right: 0; padding: 20px; }
  #app:not([data-connected="true"]) .workspace { display: none; }
  #app[data-connected="true"] aside { display: none; flex: none; max-height: 40%; border-bottom: 1px solid var(--line); }
  #app[data-connected="true"].details-open aside { display: block; }
  #app[data-connected="true"] #details-toggle { display: inline-flex; }
  #app[data-connected="true"] .workspace { flex: 1; }
  .workspace { padding: 10px; }
  #sidebar-title { margin-bottom: 16px; }
  .session-details { margin-top: 12px; }
}
@media (max-width: 480px) {
  #app[data-controlling="true"] .control-halo { --halo-spread: 10px; }
  .app-header { gap: 8px; padding: 10px 12px; }
  .brand, .header-right { gap: 7px; }
  .brand-logo { width: 24px; height: 24px; }
  h1 { font-size: 15px; }
  .connection { font-size: 11px; }
  #details-toggle { padding: 5px 7px; min-height: 28px; font-size: 11px; }
  .workspace { padding: 8px; gap: 8px; }
  .viewer-toolbar { padding: 9px; }
  .viewer-title, .viewer-controls { width: 100%; flex: auto; }
  .viewer-controls button { flex: 1; min-height: 36px; }
  .telemetry { padding: 8px 9px; gap: 6px 10px; }
  #session-info { display: none; }
  .stream-metrics { gap: 10px; }
  #permission { font-size: 10px; }
}
@media (max-height: 460px) and (min-width: 481px) {
  .app-header { padding-top: 6px; padding-bottom: 6px; }
  .workspace { padding: 8px; gap: 6px; }
  .viewer-toolbar { padding-top: 5px; padding-bottom: 5px; }
  .telemetry { padding-top: 6px; padding-bottom: 6px; }
}