:root {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
  font-size: 14px;

  /* Clean dark theme (default) */
  --bg-base: #0b0d11;
  --bg-surface: #14171d;
  --bg-elevated: #1b1f27;
  --bg-hover: #242933;
  --bg-input: #080a0d;

  --text-primary: #f0f3f6;
  --text-secondary: #9da7b3;
  --text-muted: #808b98;

  --border: #2d333b;
  --border-subtle: #1e2228;

  --btn-bg: #21262d;
  --btn-border: #373e47;
  --btn-hover: #2c323b;
  --btn-primary-bg: #238636;
  --btn-primary-hover: #2ea043;
  --btn-primary-text: #ffffff;

  --online: #3fb950;
  --offline: #768390;
  --danger: #f85149;
  --danger-bg: rgba(248, 81, 73, 0.12);
  --warning: #d29922;

  --radius-sm: 6px;
  --radius-md: 8px;
}

[data-theme="light"] {
  --bg-base: #f6f8fa;
  --bg-surface: #ffffff;
  --bg-elevated: #f0f2f5;
  --bg-hover: #e8ecf1;
  --bg-input: #ffffff;

  --text-primary: #1f2328;
  --text-secondary: #57606a;
  --text-muted: #6e7781;

  --border: #d0d7de;
  --border-subtle: #e1e4e8;

  --btn-bg: #f6f8fa;
  --btn-border: #d0d7de;
  --btn-hover: #f3f4f6;
  --btn-primary-bg: #1f883d;
  --btn-primary-hover: #1a7f37;
  --btn-primary-text: #ffffff;

  --online: #1a7f37;
  --offline: #6e7781;
  --danger: #cf222e;
  --danger-bg: #ffebe9;
  --warning: #9a6700;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg-base);
  color: var(--text-primary);
  min-height: 100vh;
}

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

button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--btn-border);
  border-radius: var(--radius-sm);
  background: var(--btn-bg);
  color: var(--text-primary);
  padding: 5px 12px;
  cursor: pointer;
  font-weight: 500;
  font-size: 12px;
  transition: background 0.12s ease, border-color 0.12s ease;
}

button:hover:not(:disabled) {
  background: var(--btn-hover);
}

button:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  filter: grayscale(0.2);
}

button.quiet {
  border-color: transparent;
  background: transparent;
  color: var(--text-secondary);
  padding: 4px 8px;
}

button.quiet:hover:not(:disabled) {
  background: var(--btn-hover);
  color: var(--text-primary);
}

#connectBtn, #sendCommandBtn {
  background: var(--btn-primary-bg);
  border-color: var(--btn-primary-bg);
  color: var(--btn-primary-text);
  font-weight: 600;
}

#connectBtn:hover:not(:disabled), #sendCommandBtn:hover:not(:disabled) {
  background: var(--btn-primary-hover);
  border-color: var(--btn-primary-hover);
}

#sendCommandBtn:disabled {
  background: var(--bg-elevated);
  border-color: var(--border);
  color: var(--text-muted);
  opacity: 0.6;
}

.theme-btn {
  font-size: 15px;
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

input, select, textarea {
  width: 100%;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  color: var(--text-primary);
  padding: 8px 10px;
  font-size: 13px;
}

input:focus, select:focus, textarea:focus {
  outline: 2px solid #58a6ff;
  outline-offset: -1px;
}

textarea {
  resize: vertical;
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 12px;
  line-height: 1.5;
}

label {
  display: grid;
  gap: 5px;
  font-size: 12px;
  color: var(--text-secondary);
}

h1, h2, p {
  margin: 0;
}

h1 {
  font-size: 20px;
  font-weight: 600;
}

h2 {
  font-size: 13px;
  font-weight: 600;
}

p {
  line-height: 1.5;
}

/* Header */
.header {
  height: 42px;
  padding: 0 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-surface);
}

.brand {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text-primary);
}

.brand span {
  font-size: 11px;
  font-weight: 400;
  color: var(--text-secondary);
}

.connection {
  display: flex;
  align-items: center;
  gap: 10px;
}

#adminState {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  color: var(--text-secondary);
}

#adminState::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--offline);
}

#disconnectBtn {
  font-size: 11px;
  padding: 3px 7px;
  color: var(--danger);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
}

/* Connection Panel */
.connection-panel {
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-surface);
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
}

.connection-panel h1 {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-primary);
}

.connection-panel p {
  color: var(--text-secondary);
  font-size: 11px;
  margin-top: 1px;
}

#connectForm {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  flex-wrap: wrap;
}

#connectForm label {
  min-width: 170px;
}

.notice {
  padding: 6px 16px;
  background: var(--danger-bg);
  color: var(--danger);
  border-bottom: 1px solid var(--border);
  font-size: 12px;
}

/* Layout */
.layout {
  display: grid;
  grid-template-columns: 240px minmax(0, 1fr);
  min-height: calc(100vh - 42px);
}

/* Sidebar */
.sidebar {
  padding: 10px;
  background: var(--bg-surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
}

.section-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.section-heading h2 {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--text-secondary);
}

#clientCount {
  font-size: 10px;
  font-weight: 700;
  padding: 1px 7px;
  border-radius: 10px;
  background: var(--bg-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.search {
  margin: 8px 0 6px;
}

.search-input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.search-icon {
  position: absolute;
  left: 8px;
  stroke: var(--text-muted);
  pointer-events: none;
}

.search input {
  padding: 5px 8px 5px 26px;
  font-size: 12px;
}

.icon-text-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

#clientList {
  display: flex;
  flex-direction: column;
  gap: 2px;
  overflow-y: auto;
  max-height: calc(100vh - 140px);
}

.client {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  width: 100%;
  text-align: left;
  padding: 5px 8px;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  box-shadow: none;
}

.client:hover:not(:disabled) {
  background: var(--bg-hover);
}

.client[aria-current="true"] {
  background: var(--bg-elevated);
  border-color: var(--border);
}

.client-copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.client-name {
  display: block;
  overflow-wrap: anywhere;
  font-weight: 500;
  font-size: 12px;
}

.client-meta {
  display: block;
  font-size: 10px;
  color: var(--text-secondary);
  margin-top: 1px;
}

.status-dot {
  width: 6px;
  height: 6px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--offline);
}

.status-dot.online {
  background: var(--online);
}

.sidebar-empty {
  padding: 20px 8px;
  color: var(--text-secondary);
  font-size: 12px;
  text-align: center;
  line-height: 1.4;
}

/* Workspace */
.workspace {
  width: 100%;
  max-width: 1360px;
  margin: 0 auto;
  padding: 12px 16px;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.target-heading {
  display: flex;
  gap: 12px;
  justify-content: space-between;
  align-items: center;
}

.eyebrow {
  color: var(--text-secondary);
  font-size: 10px;
  margin-bottom: 1px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

#targetName {
  font-size: 15px;
  font-weight: 600;
}

#targetStatus {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--text-secondary);
}

/* Screen Player */
/* Screen Player */
.screen {
  position: relative;
  background: #000000;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.screen canvas {
  display: block;
  width: 100%;
  aspect-ratio: 16/9;
  max-height: 52vh;
  object-fit: contain;
  background: #000000;
}

.screen canvas[hidden] {
  display: none !important;
}

.screen-empty {
  aspect-ratio: 16/9;
  max-height: 52vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 24px;
  color: var(--text-secondary);
  text-align: center;
  font-size: 13px;
  font-weight: 450;
  background: var(--bg-surface);
}

.screen-empty[hidden] {
  display: none !important;
}

.screen-svg-icon {
  stroke: var(--text-secondary);
  opacity: 0.85;
}

.screen-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 5px 12px;
  background: var(--bg-surface);
  border-top: 1px solid var(--border);
  font-size: 11px;
  color: var(--text-secondary);
}

/* Fullscreen Mode Fix */
.screen:fullscreen,
.screen:-webkit-full-screen {
  border: none;
  border-radius: 0;
  background: #000000;
  width: 100vw;
  height: 100vh;
  max-width: 100vw;
  max-height: 100vh;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}

.screen:fullscreen canvas,
.screen:-webkit-full-screen canvas {
  flex: 1 1 0;
  min-height: 0;
  max-height: calc(100vh - 36px);
  width: 100vw;
  height: calc(100vh - 36px);
  aspect-ratio: auto;
  object-fit: contain;
  background: #000000;
}

.screen:fullscreen .screen-empty,
.screen:-webkit-full-screen .screen-empty {
  flex: 1 1 0;
  min-height: 0;
  max-height: calc(100vh - 36px);
  width: 100vw;
  height: calc(100vh - 36px);
  aspect-ratio: auto;
  background: #0d1117;
}

.screen:fullscreen .screen-footer,
.screen:-webkit-full-screen .screen-footer {
  flex-shrink: 0;
  height: 36px;
  background: #161b22;
  border-top: 1px solid var(--border);
  padding: 0 16px;
}

.screen-controls {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.icon-btn {
  padding: 3px 6px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
}

.icon-btn:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

#streamState {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

#lastFrame {
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11px;
}

/* Bottom Grid for Panels */
.panels-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 10px;
  align-items: stretch;
}

/* Activity / Journal */
.activity {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
}

.journal-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 11px;
  color: var(--text-secondary);
}

.logs {
  flex: 1 1 0;
  min-height: 140px;
  max-height: 220px;
  overflow-y: auto;
  margin-top: 8px;
  padding: 6px 8px;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  font-family: ui-monospace, SFMono-Regular, Consolas, monospace;
  font-size: 11px;
  line-height: 1.4;
}

.log-empty {
  padding: 28px 0;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 12px;
  text-align: center;
}

.log-row {
  display: grid;
  grid-template-columns: 70px 55px minmax(0, 1fr);
  gap: 8px;
  padding: 2px 0;
  border-bottom: 1px solid var(--border-subtle);
}

.log-time {
  color: var(--text-muted);
}

.log-level {
  font-weight: 600;
  color: var(--text-secondary);
}

.log-message {
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* Commands */
.commands {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  flex-direction: column;
}

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

.command-select-label {
  flex: 1;
}

#commandState {
  font-size: 11px;
  color: var(--text-secondary);
  align-self: center;
}

.custom-command {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px;
  margin-top: 8px;
  padding-top: 8px;
  border-top: 1px solid var(--border-subtle);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

[hidden] {
  display: none !important;
}

@media (max-width: 1100px) {
  .layout {
    grid-template-columns: 220px minmax(0, 1fr);
  }
  .workspace {
    padding: 20px;
  }
}

@media (max-width: 768px) {
  .header {
    height: 52px;
    padding: 0 16px;
  }
  .brand span {
    display: none;
  }
  .connection-panel {
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }
  #connectForm {
    flex-direction: column;
  }
  #connectForm label {
    width: 100%;
  }
  .layout {
    grid-template-columns: 1fr;
  }
  .sidebar {
    border-right: none;
    border-bottom: 1px solid var(--border);
    max-height: 250px;
  }
  .workspace {
    padding: 16px;
  }
  .panels-grid {
    grid-template-columns: 1fr;
  }
  .custom-command {
    grid-template-columns: 1fr;
  }
}