:root {
  --bg-page: #0b0d10;
  --bg-panel: #13171d;
  --bg-elevated: #1b212a;
  --line-subtle: #262e3b;
  --line-strong: #384456;
  --text-main: #eef2f6;
  --text-muted: #9aa5b5;
  --accent: #f59e0b;
  --accent-hover: #fbbf24;
  --accent-ink: #111317;
  --ok: #22c55e;
  --warn: #eab308;
  --danger: #ef4444;
  --radius-lg: 12px;
  --radius-sm: 8px;
  --font-sans: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, "Cascadia Mono", Consolas, monospace;
}

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

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background: radial-gradient(circle at 18% 0%, #1d1912 0%, var(--bg-page) 48%);
  color: var(--text-main);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

body[data-phase="playing"] {
  overflow: hidden;
  background: #000;
}

body[data-phase="launcher"] .stage {
  display: none;
}

body[data-phase="playing"] .app {
  display: none;
}

.stage {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  background: #000;
  z-index: 50;
}

#canvas {
  display: block;
  width: 100%;
  height: 100%;
  outline: none;
}

.hud-overlay {
  position: fixed;
  top: 12px;
  right: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  background: rgba(13, 16, 21, 0.82);
  border: 1px solid var(--line-subtle);
  backdrop-filter: blur(8px);
  opacity: 0.22;
  transition: opacity 0.2s ease;
  z-index: 60;
}

.hud-overlay:hover,
.hud-overlay:focus-within,
.hud-overlay[data-streaming="true"] {
  opacity: 1;
}

.hud-stream {
  font-size: 12px;
  font-family: var(--font-mono);
  color: var(--accent-hover);
  padding-right: 4px;
}

.hud-btn {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: var(--bg-elevated);
  color: var(--text-main);
  font-size: 12px;
  padding: 4px 10px;
  border-radius: 6px;
  cursor: pointer;
}

.hud-btn:hover {
  border-color: var(--accent);
}

.hud-exit:hover {
  border-color: var(--danger);
  color: #fecaca;
}

.app {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 20px 44px;
}

.top-bar {
  margin-bottom: 20px;
}

.top-row {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
}

.brand-title-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.brand h1 {
  margin: 0;
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-transform: uppercase;
}

.badge-edition {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 999px;
  background: rgba(245, 158, 11, 0.14);
  border: 1px solid rgba(245, 158, 11, 0.4);
  color: var(--accent-hover);
  font-size: 12px;
  font-weight: 600;
}

.hint {
  margin: 4px 0 0;
  color: var(--text-muted);
  font-size: 13px;
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

.boot-progress {
  width: 100%;
  height: 4px;
  margin-top: 14px;
  appearance: none;
  border: none;
  border-radius: 999px;
  background: var(--bg-elevated);
  overflow: hidden;
}

.boot-progress::-webkit-progress-bar {
  background: var(--bg-elevated);
}

.boot-progress::-webkit-progress-value {
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  transition: width 0.25s ease;
}

.boot-progress::-moz-progress-bar {
  background: var(--accent);
}

.layout-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: 18px;
  align-items: start;
}

.column-primary,
.column-secondary {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.panel {
  background: var(--bg-panel);
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.28);
}

.hero-panel {
  border-color: rgba(245, 158, 11, 0.32);
  background: linear-gradient(180deg, rgba(245, 158, 11, 0.06) 0%, var(--bg-panel) 52%);
}

.status-title {
  margin: 0;
  font-size: 20px;
  font-weight: 700;
}

.status-subtitle {
  margin: 6px 0 16px;
  color: var(--text-muted);
  font-size: 14px;
}

.action-row,
.button-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.button-group {
  margin-top: 14px;
}

.play-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 44px;
  padding: 0 22px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}

.play-btn:hover:not(:disabled) {
  background: var(--accent-hover);
}

.play-btn:active:not(:disabled) {
  transform: translateY(1px);
}

.play-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.play-btn kbd {
  background: rgba(17, 19, 23, 0.18);
  border-color: rgba(17, 19, 23, 0.3);
  color: var(--accent-ink);
}

.btn,
.lang-picker select {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 38px;
  padding: 0 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--bg-elevated);
  color: var(--text-main);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}

.btn:hover:not(:disabled),
.lang-picker select:hover {
  border-color: var(--accent);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.btn-danger:hover:not(:disabled) {
  border-color: var(--danger);
  color: #fecaca;
}

.text-btn {
  background: none;
  border: none;
  color: var(--accent-hover);
  font-size: 13px;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
  padding: 4px 6px;
}

.alert-box {
  margin: 14px 0 0;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  background: rgba(239, 68, 68, 0.12);
  border: 1px solid rgba(239, 68, 68, 0.42);
  color: #fecaca;
  font-size: 13px;
}

.check-grid {
  list-style: none;
  padding: 0;
  margin: 18px 0 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 8px;
}

.check-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 11px;
  border-radius: var(--radius-sm);
  background: var(--bg-elevated);
  border: 1px solid var(--line-subtle);
  font-size: 13px;
}

.check-badge {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
}

.check-badge[data-tone="ok"] {
  color: var(--ok);
}

.check-badge[data-tone="warn"] {
  color: var(--warn);
}

.check-badge[data-tone="bad"] {
  color: var(--danger);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.panel-header h2 {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--bg-elevated);
  border: 1px solid var(--line-strong);
  color: var(--text-muted);
  font-size: 12px;
  font-family: var(--font-mono);
}

.pill[data-connected="true"] {
  color: var(--ok);
  border-color: rgba(34, 197, 94, 0.45);
}

.prose-muted {
  margin: 0;
  color: var(--text-muted);
  font-size: 13.5px;
}

.inline-feedback {
  margin: 12px 0 0;
  font-size: 13px;
  color: var(--accent-hover);
}

.inline-feedback[data-error="true"] {
  color: #fca5a5;
}

.tabs {
  display: flex;
  gap: 6px;
  border-bottom: 1px solid var(--line-subtle);
  padding-bottom: 10px;
  margin-bottom: 12px;
}

.tab {
  appearance: none;
  background: transparent;
  border: 1px solid transparent;
  color: var(--text-muted);
  padding: 5px 11px;
  border-radius: 6px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.tab.is-active {
  background: var(--bg-elevated);
  border-color: var(--line-strong);
  color: var(--text-main);
}

.keymap-list {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.keymap-list > div {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0;
  border-bottom: 1px solid rgba(38, 46, 59, 0.55);
  font-size: 13px;
}

.keymap-list > div:last-child {
  border-bottom: none;
}

.keymap-list dt {
  color: var(--text-muted);
}

.keymap-list dd {
  margin: 0;
  text-align: right;
}

kbd {
  display: inline-block;
  padding: 1px 6px;
  border-radius: 5px;
  background: var(--bg-elevated);
  border: 1px solid var(--line-strong);
  font-family: var(--font-mono);
  font-size: 11.5px;
  color: var(--text-main);
}

.prose p {
  margin: 0 0 10px;
  color: var(--text-muted);
  font-size: 13.5px;
}

.prose p:last-child {
  margin-bottom: 0;
}

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

@media (max-width: 860px) {
  .layout-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}