:root {
  color-scheme: dark;
  --bg-deep: #090604;
  --bg-panel: rgba(25, 18, 12, 0.94);
  --bg-soft: rgba(255, 255, 255, 0.05);
  --stroke: rgba(255, 196, 149, 0.18);
  --stroke-strong: rgba(255, 196, 149, 0.3);
  --accent: #fe5000;
  --accent-soft: rgba(254, 80, 0, 0.18);
  --text: #f7ece2;
  --muted: #d8b89a;
  --faint: rgba(247, 236, 226, 0.68);
  --success: #80f1ae;
  --danger: #ff9770;
  --shadow: 0 16px 32px rgba(0, 0, 0, 0.32);
  --font: "Trebuchet MS", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  width: 100%;
  height: 100%;
  margin: 0;
}

body {
  background:
    radial-gradient(circle at top left, rgba(254, 80, 0, 0.24), transparent 42%),
    radial-gradient(circle at bottom right, rgba(255, 161, 99, 0.16), transparent 40%),
    linear-gradient(160deg, #1a120d 0%, #120d09 55%, var(--bg-deep) 100%);
  color: var(--text);
  font-family: var(--font);
  overflow: hidden;
}

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

button,
input,
select {
  -webkit-tap-highlight-color: transparent;
}

button:disabled,
input:disabled,
select:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

#app {
  width: 100%;
  height: 100%;
}

.pairing-screen,
.control-screen {
  width: 100%;
  height: 100%;
  padding: 10px;
}

.pairing-screen {
  display: grid;
  align-content: start;
  gap: 8px;
  overflow-y: auto;
}

.control-screen {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 10px;
  padding: 10px;
  background:
    radial-gradient(circle at 20% 18%, rgba(255, 255, 255, 0.04), transparent 18%),
    radial-gradient(circle at 78% 82%, rgba(255, 255, 255, 0.03), transparent 22%),
    linear-gradient(180deg, #121212 0%, #080808 100%);
}

.pairing-header,
.scanner-card,
.manual-panel,
 .touch-surface,
 .control-header {
  border-radius: 20px;
  border: 1px solid var(--stroke);
  background: var(--bg-panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.pairing-header,
.scanner-card,
.manual-panel,
 .control-header {
  padding: 10px;
}

.eyebrow,
.section-title,
.metric-label,
.field span {
  margin: 0;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.pairing-header h1 {
  margin: 4px 0 0;
  line-height: 1.06;
}

.pairing-header h1 {
  font-size: 21px;
}

.pairing-copy,
.panel-copy,
.scanner-status,
#surfaceSubline {
  margin: 6px 0 0;
  color: var(--faint);
  font-size: 12px;
  line-height: 1.35;
}

.scanner-card {
  background:
    linear-gradient(180deg, rgba(254, 80, 0, 0.12), rgba(255, 255, 255, 0.03)),
    rgba(25, 18, 12, 0.94);
}

.scanner-frame {
  position: relative;
  height: 134px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--stroke-strong);
  background:
    radial-gradient(circle at center, rgba(255, 133, 63, 0.08), transparent 55%),
    rgba(0, 0, 0, 0.35);
  pointer-events: none;
}

.scanner-frame video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  opacity: 0;
  transition: opacity 160ms ease;
}

.scanner-frame[data-state="active"] video {
  opacity: 1;
}

.scanner-overlay {
  position: absolute;
  inset: 11% 14%;
  border: 2px solid rgba(255, 255, 255, 0.84);
  border-radius: 18px;
  box-shadow: 0 0 0 999px rgba(0, 0, 0, 0.18);
  opacity: 0.18;
  transition: opacity 160ms ease, border-color 160ms ease;
}

.scanner-frame[data-state="active"] .scanner-overlay {
  opacity: 1;
}

.scanner-frame[data-state="error"] .scanner-overlay {
  opacity: 0.9;
  border-color: rgba(255, 151, 112, 0.92);
}

.scanner-frame[data-state="loading"] .scanner-overlay {
  opacity: 0.72;
}

.scanner-hud {
  position: absolute;
  inset: auto 0 0 0;
  padding: 10px;
  background: linear-gradient(180deg, transparent, rgba(0, 0, 0, 0.78));
}

.scanner-title {
  margin: 0;
  font-size: 15px;
  font-weight: 700;
}

.pairing-actions,
.button-stack {
  display: grid;
  gap: 8px;
}

.button-stack {
  margin-top: 10px;
}

.primary-button,
.ghost-button {
  border-radius: 999px;
  border: 1px solid transparent;
  padding: 10px 12px;
}

.primary-button {
  background: linear-gradient(180deg, #ff8a47, var(--accent));
  color: #120d09;
  font-weight: 700;
}

.ghost-button {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--text);
}

.compact-button {
  padding: 8px 10px;
  font-size: 11px;
}

.manual-panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    var(--bg-panel);
}

.manual-header {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: start;
}

#manualPairForm {
  display: grid;
  gap: 0;
  margin: 0;
}

.field,
.field-row {
  display: grid;
  gap: 6px;
}

.field {
  margin-top: 10px;
}

.field-row {
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.field input {
  width: 100%;
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.24);
  color: var(--text);
}

.feedback {
  margin: 8px 0 0;
  padding: 9px 10px;
  border-radius: 14px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: rgba(0, 0, 0, 0.22);
  color: var(--text);
  font-size: 12px;
  line-height: 1.35;
}

.feedback[data-tone="pending"] {
  border-color: rgba(255, 187, 142, 0.28);
  background: rgba(254, 80, 0, 0.14);
}

.feedback[data-tone="success"] {
  border-color: rgba(128, 241, 174, 0.28);
  background: rgba(128, 241, 174, 0.12);
}

.feedback[data-tone="error"] {
  border-color: rgba(255, 151, 112, 0.32);
  background: rgba(255, 151, 112, 0.12);
}

.control-header {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  padding: 4px 4px 0;
  border: 0;
  background: transparent;
  box-shadow: none;
  backdrop-filter: none;
}

.connection-dot {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: #ff5b5b;
  box-shadow: 0 0 0 3px rgba(255, 91, 91, 0.14);
  transition: background-color 140ms ease, box-shadow 140ms ease, transform 140ms ease;
}

.connection-dot[data-state="connected"] {
  background: #73f38b;
  box-shadow: 0 0 0 3px rgba(115, 243, 139, 0.15), 0 0 16px rgba(115, 243, 139, 0.3);
}

.connection-dot[data-state="patchy"] {
  background: #ffd35a;
  box-shadow: 0 0 0 3px rgba(255, 211, 90, 0.15), 0 0 14px rgba(255, 211, 90, 0.26);
}

.connection-dot[data-state="disconnected"] {
  background: #ff6a6a;
  box-shadow: 0 0 0 3px rgba(255, 106, 106, 0.14);
}

.touch-shell {
  min-height: 0;
}

.touch-surface {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 100%;
  padding: 0;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    radial-gradient(circle at 50% 20%, rgba(255, 255, 255, 0.04), transparent 32%),
    linear-gradient(180deg, rgba(30, 30, 30, 0.98), rgba(6, 6, 6, 0.98));
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    inset 0 -28px 60px rgba(0, 0, 0, 0.38),
    0 18px 28px rgba(0, 0, 0, 0.4);
  overflow: hidden;
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.surface-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 40%, rgba(255, 255, 255, 0.06), transparent 26%),
    linear-gradient(135deg, transparent 0%, rgba(255, 255, 255, 0.02) 48%, transparent 100%);
  opacity: 0.8;
  pointer-events: none;
}

.build-tag {
  margin: 0;
  padding: 0 4px 2px;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(247, 236, 226, 0.42);
  text-align: center;
}

.surface-pulse::after {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  animation: pulse 320ms ease-out;
}

.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;
}

@keyframes pulse {
  from {
    opacity: 0.92;
    transform: scale(0.98);
  }

  to {
    opacity: 0;
    transform: scale(1.02);
  }
}