:root {
  color-scheme: light;
  --bg: #f5f7fa;
  --panel: #ffffff;
  --border: #d8dee8;
  --text: #152033;
  --muted: #657287;
  --accent: #176f64;
  --accent-dark: #0d5149;
  --selected: #e6f3f1;
  --danger: #9f2d20;
}

* {
  box-sizing: border-box;
}

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

button {
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
  color: var(--text);
  cursor: pointer;
  font: inherit;
  min-height: 40px;
  padding: 0 14px;
}

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

button:not(:disabled):hover {
  border-color: var(--accent);
}

.app-shell {
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 20px;
}

.toolbar {
  align-items: center;
  display: flex;
  gap: 20px;
  justify-content: space-between;
  margin-bottom: 20px;
}

.brand-lockup {
  align-items: center;
  display: flex;
  gap: 12px;
  min-width: 0;
}

.brand-title-row {
  align-items: center;
  display: flex;
  gap: 8px;
  min-width: 0;
}

.app-logo {
  display: block;
  flex: 0 0 auto;
}

.brand-lockup > div {
  min-width: 0;
}

.icon-button {
  align-items: center;
  border-radius: 999px;
  display: inline-flex;
  flex: 0 0 auto;
  height: 36px;
  justify-content: center;
  min-height: 0;
  padding: 0;
  width: 36px;
}

.icon-button svg {
  display: block;
  fill: none;
  height: 20px;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
  width: 20px;
}

h1,
h2,
h3,
p {
  margin: 0;
}

h1 {
  font-size: 28px;
  line-height: 1.2;
  overflow-wrap: anywhere;
}

h2 {
  font-size: 18px;
}

h3 {
  font-size: 15px;
}

.toolbar p,
.panel-header span,
.status,
.meta {
  color: var(--muted);
}

.grid {
  display: grid;
  gap: 18px;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.8fr) minmax(280px, 0.7fr);
}

.hosted-ui .grid {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.55fr);
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 8px;
  min-height: 520px;
  padding: 16px;
}

.hosted-ui .movies-panel,
.hosted-ui #configText,
.hosted-ui #deviceList,
.hosted-ui #castButton,
.hosted-ui .local-cast-control,
.hosted-ui #webDiagnostics {
  display: none;
}

.helper-ui.hosted-ui #deviceList,
.helper-ui.hosted-ui #castButton,
.helper-ui.hosted-ui #configText {
  display: grid;
}

.helper-ui .grid {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.7fr);
}

.helper-ui .web-panel {
  grid-column: 1;
}

.helper-ui .devices-panel {
  grid-column: 2;
}

.helper-ui .movies-panel {
  display: none;
}

.helper-ui #castButton {
  grid-column: 1 / -1;
}

.helper-ui #browserCastButton,
.helper-ui #airPlayButton,
.helper-ui #castHelperButton {
  display: none;
}

.helper-ui #webDiagnostics.visible {
  display: block;
}

.helper-ui .web-panel .source-form,
.helper-ui .web-panel .source-page-row,
.helper-ui .web-panel #webSource {
  display: none;
}

.helper-ui .web-panel #webStatusLabel {
  display: none;
}

.helper-ui .web-panel #extractSourceButton {
  display: none;
}

.helper-ui .web-panel #webDiagnostics {
  display: none;
}

.helper-ui .web-panel .panel-header {
  margin-bottom: 0;
}

.helper-ui .web-panel .panel-header h2 {
  font-size: 17px;
}

.helper-ui .web-panel .helper-summary {
  color: var(--muted);
  display: grid;
  gap: 4px;
  margin-top: 10px;
}

.helper-ui .web-panel .helper-summary strong {
  color: var(--text);
  overflow-wrap: anywhere;
}

.helper-ui .web-panel .helper-line {
  overflow-wrap: anywhere;
}

.helper-ui .devices-panel .local-cast-control:not(#castButton) {
  display: none;
}

.helper-ui #castButton {
  display: block;
  grid-column: 1 / -1;
}

.helper-ui .devices-panel .controls {
  grid-template-columns: 1fr;
  margin-top: 12px;
}

.helper-ui .devices-panel .controls button {
  min-height: 44px;
}

.helper-ui .video-player {
  display: none;
}

.android-device #airPlayButton {
  display: none;
}

.ios-device:not(.helper-ui) #browserCastButton,
.ios-device:not(.helper-ui) #castHelperButton {
  display: none;
}

body:not(.ios-device) #castHelperButton {
  display: none;
}

.hosted-ui .controls {
  margin-top: 0;
}

.panel-header {
  align-items: center;
  display: flex;
  justify-content: space-between;
  margin-bottom: 12px;
}

.panel-header.compact {
  margin-bottom: 8px;
}

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

.source-form {
  display: grid;
  gap: 8px;
  grid-template-columns: minmax(0, 1fr) auto;
  margin-bottom: 8px;
}

.source-form[hidden] {
  display: none;
}

.source-page-row {
  display: grid;
  gap: 6px;
  margin-bottom: 12px;
}

.source-page-row label {
  color: var(--muted);
  font-size: 13px;
}

input {
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font: inherit;
  min-height: 40px;
  min-width: 0;
  padding: 0 12px;
}

.source-form button {
  background: var(--text);
  border-color: var(--text);
  color: #fff;
}

.action-row {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr;
  margin-bottom: 12px;
}

.secondary-action {
  width: 100%;
}

.diagnostics {
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--muted);
  display: none;
  font-size: 13px;
  line-height: 1.45;
  margin-bottom: 12px;
  padding: 10px;
  white-space: pre-wrap;
  word-break: break-word;
}

.diagnostics.visible {
  display: block;
}

.diagnostics.error {
  border-color: #e0aaa4;
  color: var(--danger);
}

.path-source {
  border-bottom: 1px solid var(--border);
  margin-bottom: 12px;
  padding-bottom: 12px;
}


.item {
  align-items: flex-start;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: grid;
  gap: 4px;
  justify-items: start;
  padding: 12px;
  text-align: left;
  width: 100%;
}

.item.selected {
  background: var(--selected);
  border-color: var(--accent);
}

.item strong {
  overflow-wrap: anywhere;
}

.meta {
  font-size: 13px;
  overflow-wrap: anywhere;
}

.controls {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 16px;
}

#castButton,
#browserCastButton,
#airPlayButton,
#castHelperButton {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

#castButton:not(:disabled):hover,
#browserCastButton:not(:disabled):hover,
#airPlayButton:not(:disabled):hover,
#castHelperButton:not(:disabled):hover {
  background: var(--accent-dark);
}

.video-player {
  background: #000;
  border-radius: 8px;
  display: block;
  margin-top: 12px;
  width: 100%;
}

.video-player[hidden] {
  display: none;
}

.status {
  margin-top: 14px;
  min-height: 24px;
}

.status.error {
  color: var(--danger);
}

.settings-dialog {
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  max-width: min(420px, calc(100vw - 32px));
  padding: 0;
  width: 100%;
}

.settings-dialog::backdrop {
  background: rgba(21, 32, 51, 0.42);
}

.settings-form {
  display: grid;
  gap: 12px;
  padding: 18px;
}

.settings-form label {
  color: var(--muted);
  font-size: 13px;
}

.settings-status {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.4;
  min-height: 18px;
}

.settings-status.error {
  color: var(--danger);
}

.settings-actions {
  display: grid;
  gap: 8px;
  grid-template-columns: 1fr 1fr;
}

.settings-actions button[type="submit"] {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

@media (max-width: 760px) {
  .app-shell {
    padding: 18px 20px;
  }

  .toolbar {
    align-items: stretch;
    flex-direction: column;
    gap: 12px;
  }

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

  .hosted-ui .grid {
    grid-template-columns: 1fr;
  }

  .helper-ui .grid {
    grid-template-columns: 1fr;
  }

  .helper-ui .web-panel,
  .helper-ui .devices-panel {
    grid-column: auto;
  }

  .helper-ui .web-panel {
    min-height: 0;
  }

  .helper-ui .devices-panel {
    min-height: 0;
  }

  .panel {
    min-height: 0;
  }

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

@media (max-width: 520px) {
  .hosted-ui .toolbar {
    align-items: center;
    flex-direction: row;
  }

  .hosted-ui h1 {
    font-size: 25px;
  }

  .hosted-ui .app-logo {
    height: 40px;
    width: 40px;
  }
}