/* Prompter — minimal dark UI, mobile-first */
:root {
  --bg: #09090b;
  --bg-panel: #0f0f12;
  --bg-elevated: #18181b;
  --bg-hover: #27272a;
  --text: #fafafa;
  --text-muted: #a1a1aa;
  --accent: #34d399;
  --accent-dim: #059669;
  --accent-soft: rgba(52, 211, 153, 0.14);
  --danger: #f87171;
  --danger-dim: #b91c1c;
  --warn: #fbbf24;
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.12);
  --focus-line: rgba(52, 211, 153, 0.55);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.45);
  --radius: 12px;
  --radius-sm: 8px;
  --font-ui: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-prompt: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --prompt-max-width: 28rem;
  --focus-ratio: 0.167;
  --camera-w: 120px;
  --camera-h: 90px;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --header-h: auto;
  --z-header: 40;
  --z-menu: 50;
  --z-cam: 15;
  --z-modal: 100;
}

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

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
}

body {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  overflow: hidden;
}

a {
  color: var(--accent);
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
}

/* —— Header —— */
.app-header {
  position: relative;
  display: flex;
  flex-wrap: nowrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  padding: calc(0.45rem + var(--safe-top)) 0.75rem 0.45rem;
  background: rgba(15, 15, 18, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: var(--z-header);
  flex-shrink: 0;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
  flex-shrink: 1;
}

.app-title {
  font-size: 0.95rem;
  font-weight: 650;
  letter-spacing: -0.02em;
  margin: 0;
  white-space: nowrap;
}

.app-title::after {
  content: "TR";
  margin-left: 0.35rem;
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--accent);
  vertical-align: super;
  letter-spacing: 0.04em;
}

.controls-primary {
  display: flex;
  align-items: center;
  gap: 0.3rem;
  flex-shrink: 0;
}

.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--bg-elevated);
  color: var(--text);
  font: inherit;
  font-size: 0.8rem;
  font-weight: 550;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
  cursor: pointer;
  min-height: 36px;
  touch-action: manipulation;
  transition: background 0.12s, border-color 0.12s, color 0.12s, transform 0.08s;
  white-space: nowrap;
}

.btn:hover {
  background: var(--bg-hover);
  border-color: var(--border-strong);
}

.btn:active {
  transform: scale(0.97);
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.btn-ghost {
  background: transparent;
  border-color: transparent;
  color: var(--text-muted);
}

.btn-ghost:hover {
  background: var(--bg-elevated);
  color: var(--text);
  border-color: var(--border);
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--accent);
  color: #052e1c;
}

.btn-danger,
.btn-danger.active {
  background: var(--danger-dim);
  border-color: transparent;
  color: #fff;
}

.btn-sm {
  min-height: 30px;
  padding: 0.25rem 0.55rem;
  font-size: 0.72rem;
  border-radius: 999px;
}

.btn-icon {
  min-width: 36px;
  padding-inline: 0.55rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.btn-pill {
  padding-inline: 0.9rem;
}

.status-pill {
  font-size: 0.65rem;
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  background: var(--bg-elevated);
  color: var(--text-muted);
  border: 1px solid var(--border);
  max-width: 9rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.status-pill.ok {
  color: var(--accent);
  border-color: rgba(52, 211, 153, 0.35);
  background: var(--accent-soft);
}

.status-pill.warn {
  color: var(--warn);
  border-color: rgba(251, 191, 36, 0.35);
}

.status-pill.err {
  color: var(--danger);
  border-color: rgba(248, 113, 113, 0.35);
}

.rec-indicator {
  display: none;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.65rem;
  font-weight: 700;
  color: #fff;
  background: var(--danger-dim);
  padding: 0.15rem 0.45rem;
  border-radius: 999px;
  letter-spacing: 0.03em;
}

.rec-indicator.visible {
  display: inline-flex;
}

.rec-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: rec-blink 1s step-end infinite;
}

@keyframes rec-blink {
  50% {
    opacity: 0.25;
  }
}

/* Overflow menu */
.more-menu {
  position: absolute;
  top: calc(100% + 4px);
  right: 0.5rem;
  min-width: 12.5rem;
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 0.35rem;
  z-index: var(--z-menu);
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.more-menu[hidden] {
  display: none !important;
}

.menu-item {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-size: 0.85rem;
  text-align: left;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  width: 100%;
}

.menu-item:hover {
  background: var(--bg-hover);
}

.menu-item-range {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  color: var(--text-muted);
  font-size: 0.75rem;
  cursor: default;
}

.menu-item-range input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

/* Settings panel */
.settings-panel {
  flex-shrink: 0;
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0.65rem 0.75rem;
  max-height: 40vh;
  overflow-y: auto;
}

.settings-panel[hidden] {
  display: none !important;
}

.settings-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.55rem;
}

.param-control {
  display: grid;
  grid-template-columns: 4.5rem 1fr 3rem;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.param-label {
  font-weight: 550;
  color: var(--text-muted);
}

.param-control input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.param-val {
  font-variant-numeric: tabular-nums;
  color: var(--text);
  font-size: 0.7rem;
  text-align: right;
}

.cam-orient-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  align-items: center;
}

.cam-orient-group .btn-sm.active {
  background: var(--accent-soft);
  border-color: rgba(52, 211, 153, 0.4);
  color: var(--accent);
}

/* —— Main —— */
.main {
  flex: 1;
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: auto 1fr;
  min-height: 0;
  position: relative;
}

.editor-panel {
  background: var(--bg-panel);
  border-bottom: 1px solid var(--border);
  padding: 0.65rem 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  max-height: min(36vh, 240px);
  overflow: hidden;
  transition: max-height 0.2s ease, padding 0.2s ease, opacity 0.15s;
}

.editor-panel.collapsed {
  max-height: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-bottom: none;
  opacity: 0;
  pointer-events: none;
}

.editor-panel label {
  font-size: 0.72rem;
  font-weight: 550;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

#script-input {
  width: 100%;
  min-height: 72px;
  flex: 1;
  resize: none;
  background: var(--bg);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.7rem;
  font: inherit;
  font-size: 0.9rem;
  line-height: 1.45;
}

#script-input:focus {
  outline: none;
  border-color: rgba(52, 211, 153, 0.45);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.editor-actions {
  display: flex;
  gap: 0.35rem;
}

/* Stage */
.prompter-stage {
  position: relative;
  min-height: 0;
  display: flex;
  flex-direction: column;
  background: #000;
  overflow: hidden;
}

.prompter-viewport {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  -webkit-overflow-scrolling: touch;
  /* JS ease-out drives auto-scroll; keep CSS auto to avoid fighting rAF */
  scroll-behavior: auto;
  position: relative;
  /* Reserve space so PiP never covers reading band on mobile */
  padding: 0 1rem;
  padding-bottom: calc(var(--camera-h) + 1.25rem);
}

.prompter-viewport::before {
  content: "";
  position: sticky;
  top: calc(var(--focus-ratio) * 100%);
  display: block;
  height: 2px;
  margin-bottom: -2px;
  background: var(--focus-line);
  z-index: 2;
  pointer-events: none;
  box-shadow: 0 0 16px var(--focus-line);
}

.prompter-content {
  position: relative;
  font-family: var(--font-prompt);
  font-size: clamp(1.25rem, 4.2vw, 2.5rem);
  font-weight: 600;
  line-height: 1.55;
  letter-spacing: -0.01em;
  color: #f4f4f5;
  padding-top: calc(var(--focus-ratio) * 100vh);
  padding-right: 0.35rem;
  padding-bottom: 70vh;
  padding-left: 0.35rem;
  max-width: var(--prompt-max-width);
  width: 100%;
  margin: 0 auto;
  white-space: pre-wrap;
  word-break: break-word;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.65);
  transition: max-width 0.2s ease;
}

.prompter-content .word {
  transition: color 0.12s, background 0.12s;
}

.prompter-content .word.spoken {
  color: var(--accent);
  opacity: 0.88;
}

.prompter-content .word.current {
  color: #fff;
  background: var(--accent-soft);
  border-radius: 4px;
  padding: 0 0.08em;
  box-shadow: 0 0 0 1px rgba(52, 211, 153, 0.25);
}

/* Camera PiP — mobile: bottom-left (below reading line); desktop: top-right */
.camera-wrap {
  position: absolute;
  z-index: var(--z-cam);
  width: var(--camera-w);
  height: var(--camera-h);
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--border-strong);
  background: #111;
  box-shadow: var(--shadow);
  /* Mobile default: bottom-left, clear of focus band */
  left: 0.65rem;
  bottom: 0.65rem;
  right: auto;
  top: auto;
  transition: opacity 0.2s, transform 0.2s;
}

.camera-wrap.is-off:not(.error) {
  opacity: 0.55;
}

.camera-wrap video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
  background: #000;
}

.camera-wrap .camera-label {
  position: absolute;
  left: 0.35rem;
  top: 0.3rem;
  font-size: 0.6rem;
  font-weight: 650;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.12rem 0.35rem;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.55);
  color: var(--text-muted);
  pointer-events: none;
}

.camera-wrap.error {
  border-color: rgba(248, 113, 113, 0.5);
  opacity: 1;
}

.camera-wrap .camera-fallback {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0.4rem;
  font-size: 0.65rem;
  line-height: 1.3;
  color: var(--text-muted);
  background: var(--bg-panel);
}

.camera-wrap.error .camera-fallback {
  display: flex;
}

.camera-wrap.error video {
  display: none;
}

/* Footer */
.footer-bar {
  flex-shrink: 0;
  padding: 0.4rem 0.75rem calc(0.4rem + var(--safe-bottom));
  background: rgba(15, 15, 18, 0.92);
  backdrop-filter: blur(10px);
  border-top: 1px solid var(--border);
  font-size: 0.72rem;
  color: var(--text-muted);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 0.4rem 0.65rem;
  align-items: center;
}

.live-transcript {
  min-width: 0;
  display: flex;
  gap: 0.35rem;
  align-items: baseline;
  overflow: hidden;
}

.live-transcript strong {
  color: var(--text-muted);
  font-weight: 550;
  flex-shrink: 0;
}

.live-transcript .transcript-text,
.live-transcript em {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--text);
  font-style: normal;
}

.live-transcript .muted {
  color: var(--text-muted);
  font-style: italic;
  font-weight: 400;
}

.match-info {
  font-variant-numeric: tabular-nums;
  color: var(--text-muted);
  flex-shrink: 0;
}

.mic-meter {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
}

.mic-label {
  font-size: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.mic-meter-track {
  width: 40px;
  height: 6px;
  border-radius: 3px;
  background: var(--bg);
  border: 1px solid var(--border);
  overflow: hidden;
}

.mic-meter-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--accent-dim), var(--accent));
  transition: width 0.05s linear;
}

.speech-debug {
  grid-column: 1 / -1;
  font-size: 0.6rem;
  opacity: 0.7;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  display: none; /* quiet by default */
}

body.show-debug .speech-debug {
  display: block;
}

/* Help */
.help-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  align-items: flex-end;
  justify-content: center;
  padding: 0;
}

.help-overlay.open {
  display: flex;
}

.help-card {
  background: var(--bg-elevated);
  border: 1px solid var(--border-strong);
  border-radius: 16px 16px 0 0;
  width: 100%;
  max-width: 32rem;
  max-height: 88dvh;
  overflow-y: auto;
  padding: 1.25rem 1.25rem calc(1.25rem + var(--safe-bottom));
  box-shadow: var(--shadow);
}

.help-card h2 {
  margin: 0 0 0.65rem;
  font-size: 1.1rem;
  letter-spacing: -0.02em;
}

.help-card p,
.help-card li {
  font-size: 0.88rem;
  line-height: 1.5;
  color: var(--text-muted);
}

.help-card ul {
  padding-left: 1.15rem;
  margin: 0.5rem 0 1rem;
}

.help-card code {
  background: var(--bg);
  padding: 0.1em 0.35em;
  border-radius: 4px;
  font-size: 0.82em;
}

.help-credit {
  margin: 0.75rem 0 1rem !important;
  font-size: 0.78rem !important;
}

.banner {
  display: none;
  padding: 0.45rem 0.75rem;
  background: #292524;
  color: #fcd34d;
  font-size: 0.8rem;
  border-bottom: 1px solid rgba(251, 191, 36, 0.35);
}

.banner.visible {
  display: block;
}

/* —— Desktop / tablet —— */
@media (min-width: 768px) {
  .app-header {
    padding: 0.55rem 1rem;
  }

  .app-title {
    font-size: 1.05rem;
  }

  .status-pill {
    max-width: 16rem;
  }

  .settings-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0.65rem 1.25rem;
  }

  .cam-orient-group {
    grid-column: 1 / -1;
  }

  .prompter-content {
    font-size: clamp(1.6rem, 2.8vw, 2.85rem);
  }

  .prompter-viewport {
    /* camera top-right: pad right so text doesn't run under pip */
    padding: 0 1.25rem;
    padding-right: calc(var(--camera-w) + 1.5rem);
    padding-bottom: 1rem;
  }

  .camera-wrap {
    left: auto;
    right: 1rem;
    top: 1rem;
    bottom: auto;
    width: var(--camera-w);
    height: var(--camera-h);
  }

  .help-overlay {
    align-items: center;
    padding: 1.5rem;
  }

  .help-card {
    border-radius: 16px;
    padding: 1.5rem;
  }

  .speech-debug {
    display: block;
    opacity: 0.55;
  }
}

@media (max-width: 380px) {
  .btn {
    font-size: 0.75rem;
    padding: 0.35rem 0.55rem;
    min-height: 34px;
  }

  .btn-primary {
    padding-inline: 0.7rem;
  }

  .status-pill {
    display: none;
  }
}

@media (max-height: 500px) and (orientation: landscape) {
  .editor-panel:not(.collapsed) {
    max-height: 28vh;
  }

  .prompter-content {
    font-size: clamp(1.05rem, 3.2vh, 1.65rem);
  }

  .camera-wrap {
    --camera-w: 88px;
    --camera-h: 66px;
    width: 88px;
    height: 66px;
  }
}