/* ============================================================
   AETHER — brutalist redesign
   Single typeface (JetBrains Mono). Hard borders. No icons.
   ============================================================ */

:root {
  --ink:        #f5e6c8;
  --ink-dim:    #b8a47a;
  --ink-mute:   #6b5530;
  --rule:       #2a2114;
  --rule-soft:  #1a1409;
  --paper:      #000000;
  --paper-2:    #0a0805;
  --paper-3:    #14110b;
  --accent:     #ffaa1a;
  --accent-2:   #ffcb47;
  --warn:       #ff3b1f;

  --safe-top:    env(safe-area-inset-top);
  --safe-bottom: env(safe-area-inset-bottom);
  --safe-left:   env(safe-area-inset-left);
  --safe-right:  env(safe-area-inset-right);

  --gutter: 22px;
  --col:    min(100% - 0px, 560px);

  --font: "JetBrains Mono", ui-monospace, "SF Mono", monospace;
}

*, *::before, *::after { box-sizing: border-box; }
[hidden] { display: none !important; }

html, body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-weight: 400;
  font-size: 14px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  min-height: 100dvh;
  padding-top:    max(20px, var(--safe-top));
  padding-bottom: max(20px, var(--safe-bottom));
  padding-left:   max(0px,  var(--safe-left));
  padding-right:  max(0px,  var(--safe-right));
  overscroll-behavior-y: none;
}

/* ============================================================
   Masthead
   ============================================================ */
.masthead {
  width: var(--col);
  margin: 0 auto 8px;
  padding: 0 var(--gutter);
}

.brand {
  margin: 0;
  font-family: var(--font);
  font-weight: 800;
  font-size: clamp(64px, 22vw, 124px);
  line-height: 0.85;
  letter-spacing: -0.06em;
  color: var(--ink);
}

.tagline {
  margin: 6px 0 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ============================================================
   Mode switch — two big text labels, the active one inverted
   ============================================================ */
.mode-switch {
  display: flex;
  width: var(--col);
  margin: 24px auto 0;
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}
.mode-switch.is-hidden { display: none; }

.mode-switch__btn {
  flex: 1;
  appearance: none;
  background: transparent;
  border: 0;
  border-left: 1px solid var(--ink);
  color: var(--ink-dim);
  font-family: var(--font);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  padding: 18px 12px;
  cursor: pointer;
  min-height: 56px;
  transition: background 0.08s, color 0.08s;
}
.mode-switch__btn:first-child { border-left: 0; }
.mode-switch__btn.is-active {
  background: var(--ink);
  color: var(--paper);
}
.mode-switch__btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: -4px;
}
/* legacy decorative bits hidden */
.mode-switch__indicator,
.mode-switch__glyph { display: none !important; }

/* ============================================================
   Console / panels
   ============================================================ */
.console {
  width: var(--col);
  margin: 32px auto 0;
  padding: 0 var(--gutter);
}

.panel { display: none; }
.panel.is-active { display: block; }

.stage > * + * { margin-top: 14px; }
.stage { margin-bottom: 8px; }

/* ============================================================
   Step header — the brutalist hero
   ============================================================ */
.step {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto;
  align-items: end;
  column-gap: 18px;
  padding: 6px 0 14px;
  border-top: 3px solid var(--ink);
  border-bottom: 1px solid var(--ink);
  margin: 0 0 24px;
}
.step::before {
  content: "";
  position: absolute;
}

.step__num {
  font-family: var(--font);
  font-weight: 800;
  font-size: clamp(54px, 18vw, 88px);
  line-height: 0.8;
  letter-spacing: -0.06em;
  color: var(--accent);
  align-self: end;
  padding-top: 18px;
}

.step__title {
  margin: 0;
  padding-bottom: 6px;
  font-family: var(--font);
  font-weight: 700;
  font-size: clamp(22px, 6vw, 30px);
  line-height: 1.05;
  letter-spacing: -0.01em;
  color: var(--ink);
  text-transform: lowercase;
}

.step--chat {
  grid-template-columns: auto 1fr auto;
  align-items: center;
}
.step--chat .step__num {
  font-size: clamp(40px, 11vw, 56px);
  padding-top: 0;
  color: var(--ink-mute);
}

/* ============================================================
   Prose
   ============================================================ */
.prose {
  margin: 0 0 22px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--ink-dim);
}
.prose strong { color: var(--ink); font-weight: 700; }
.prose--small { font-size: 13px; color: var(--ink-mute); }

.inline-link {
  appearance: none;
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
  font: inherit;
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
  cursor: pointer;
}
.inline-link:hover,
.inline-link:focus-visible {
  color: var(--accent-2);
  outline: none;
}

.rule {
  border: 0;
  border-top: 2px solid var(--ink);
  margin: 28px 0;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn,
.action {
  display: block;
  width: 100%;
  background: transparent;
  color: var(--ink);
  border: 2px solid var(--ink);
  font-family: var(--font);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  padding: 18px 16px;
  text-align: center;
  cursor: pointer;
  min-height: 56px;
  margin: 0 0 12px;
  transition: background 0.08s, color 0.08s, border-color 0.08s;
  text-decoration: none;
  appearance: none;
}
.btn:hover,
.action:hover,
.btn:focus-visible,
.action:focus-visible {
  background: var(--ink);
  color: var(--paper);
  outline: none;
}

.btn--primary,
.action--primary {
  background: var(--accent);
  color: var(--paper);
  border-color: var(--accent);
}
.btn--primary:hover,
.action--primary:hover,
.btn--primary:focus-visible,
.action--primary:focus-visible {
  background: var(--accent-2);
  color: var(--paper);
  border-color: var(--accent-2);
}

.btn--ghost,
.action--ghost,
.action--share,
.action--secondary,
.action--secondary-soft {
  border-color: var(--rule);
  color: var(--ink-mute);
  background: transparent;
}
.btn--ghost:hover,
.action--ghost:hover,
.btn--ghost:focus-visible,
.action--ghost:focus-visible,
.action--share:hover,
.action--secondary:hover,
.action--secondary-soft:hover {
  border-color: var(--ink);
  color: var(--ink);
  background: transparent;
}

.btn--danger {
  border-color: var(--warn);
  color: var(--warn);
  background: transparent;
}
.btn--danger:hover,
.btn--danger:focus-visible {
  background: var(--warn);
  color: var(--paper);
  border-color: var(--warn);
}

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

.action__icon { display: none !important; }
.action__bracket { display: none !important; }
.action__label { display: inline; }

/* small inline text buttons (copy / from clipboard) */
.link-readout__copy,
.paste-pad__clip {
  appearance: none;
  background: transparent;
  border: 0;
  color: var(--accent);
  font-family: var(--font);
  font-weight: 700;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  cursor: pointer;
  padding: 4px 0;
}
.link-readout__copy:hover,
.paste-pad__clip:hover {
  color: var(--accent-2);
  text-decoration: underline;
  text-underline-offset: 4px;
}
.link-readout__copy svg { display: none !important; }
.link-readout__copy.is-confirmed { color: var(--ink); }

/* ============================================================
   QR
   ============================================================ */
.qr,
.qr-frame {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--ink);
  border: 2px solid var(--ink);
  padding: 14px;
  margin: 0 0 18px;
  cursor: zoom-in;
  position: relative;
}
.qr canvas,
.qr-frame canvas,
.qr-frame__canvas canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}
.qr-frame__bracket,
.qr-frame__crosshair,
.qr-frame__caption { display: none !important; }
.qr-frame__canvas {
  width: 100%;
  height: 100%;
}

/* QR full-screen overlay */
.qr-overlay {
  position: fixed;
  inset: 0;
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 300;
  opacity: 0;
  transition: opacity 0.16s;
  padding: 24px;
  padding-top:    max(24px, var(--safe-top));
  padding-bottom: max(24px, var(--safe-bottom));
  cursor: zoom-out;
}
.qr-overlay.is-visible { opacity: 1; }
.qr-overlay__inner {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: center;
  max-width: 92vmin;
  width: 100%;
}
.qr-overlay__canvas {
  width: min(92vmin, 92vw);
  aspect-ratio: 1 / 1;
  background: var(--ink);
  padding: 16px;
  border: 4px solid var(--ink);
}
.qr-overlay__canvas canvas {
  display: block;
  width: 100% !important;
  height: 100% !important;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
}
.qr-overlay__hint {
  margin: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* ============================================================
   Definition lists for metadata
   ============================================================ */
.dl {
  margin: 0 0 22px;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.dl > div {
  flex: 1 1 50%;
  padding: 10px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
}
.dl > div + div {
  padding-left: 14px;
}
.dl dt { color: var(--ink-mute); margin: 0; }
.dl dd { margin: 0; color: var(--ink); font-weight: 700; font-variant-numeric: tabular-nums; }

/* ============================================================
   Link readout
   ============================================================ */
.link-readout {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 14px;
  margin-bottom: 16px;
}
.link-readout__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.link-readout__actions {
  display: inline-flex;
  gap: 16px;
}
.link-readout__url {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  word-break: break-all;
  color: var(--ink);
  font-size: 12px;
  line-height: 1.5;
  text-decoration: none;
  cursor: copy;
}
.link-readout__host  { color: var(--ink-mute); }
.link-readout__tag   { color: var(--accent); font-weight: 700; }
.link-readout__token { color: var(--ink); }
.link-readout--cyan .link-readout__tag { color: var(--accent); }

/* ============================================================
   Paste pad
   ============================================================ */
.paste-pad {
  background: var(--paper-2);
  border: 1px solid var(--rule);
  padding: 14px;
  margin-bottom: 12px;
}
.paste-pad__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
}
.paste-pad__field {
  width: 100%;
  min-height: 80px;
  background: var(--paper);
  color: var(--ink);
  border: 1px solid var(--rule);
  padding: 12px;
  font-family: var(--font);
  font-size: 12px;
  resize: vertical;
  margin-bottom: 12px;
}
.paste-pad__field:focus {
  outline: none;
  border-color: var(--accent);
}

/* ============================================================
   Viewfinder (camera)
   ============================================================ */
.viewfinder {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: var(--paper-2);
  border: 2px solid var(--ink);
  margin: 0 0 16px;
  position: relative;
  overflow: hidden;
}
.viewfinder__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.viewfinder__canvas { display: none; }
.viewfinder__reticle,
.viewfinder__corner,
.viewfinder__rec,
.viewfinder__scan { display: none !important; }
.viewfinder__readout {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--paper);
  color: var(--ink);
  padding: 10px 14px;
  font-size: 10px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  display: flex;
  gap: 10px;
  border-top: 1px solid var(--ink);
}
.viewfinder__readout-key { color: var(--ink-mute); }
.viewfinder__readout-val { color: var(--accent); font-weight: 700; }

/* Full-screen scanner — applied to any visible scan-* stage */
.stage[data-stage="scan-answer"]:not([hidden]),
.stage[data-stage="scan-offer"]:not([hidden]) {
  position: fixed;
  inset: 0;
  z-index: 150;
  background: var(--paper);
  margin: 0;
  padding-top:    var(--safe-top);
  padding-bottom: var(--safe-bottom);
  padding-left:   var(--safe-left);
  padding-right:  var(--safe-right);
  display: flex;
  flex-direction: column;
}
.stage[data-stage="scan-answer"]:not([hidden]) > * + *,
.stage[data-stage="scan-offer"]:not([hidden]) > * + * {
  margin-top: 0;
}
.stage[data-stage="scan-answer"]:not([hidden]) > .step,
.stage[data-stage="scan-offer"]:not([hidden]) > .step,
.stage[data-stage="scan-answer"]:not([hidden]) > .prose,
.stage[data-stage="scan-offer"]:not([hidden]) > .prose {
  display: none;
}
.stage[data-stage="scan-answer"]:not([hidden]) > .viewfinder,
.stage[data-stage="scan-offer"]:not([hidden]) > .viewfinder {
  flex: 1;
  width: 100%;
  height: auto;
  aspect-ratio: auto;
  margin: 0;
  border: 0;
  border-radius: 0;
}
.stage[data-stage="scan-answer"]:not([hidden]) .viewfinder__readout,
.stage[data-stage="scan-offer"]:not([hidden]) .viewfinder__readout {
  top: 22px;
  bottom: auto;
  left: 22px;
  right: auto;
  border: 1px solid var(--ink);
  background: var(--paper);
}
.stage[data-stage="scan-answer"]:not([hidden]) > .btn,
.stage[data-stage="scan-offer"]:not([hidden]) > .btn {
  margin: 18px 22px;
}

/* ============================================================
   On-air status (small label in chat header)
   ============================================================ */
.onair {
  display: inline-block;
  font-size: 10px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--ink-mute);
  padding: 5px 10px;
  border: 1px solid var(--rule);
}
.onair--linked {
  color: var(--paper);
  background: var(--accent);
  border-color: var(--accent);
}
.onair--awaiting { color: var(--ink-mute); }
.onair__dot { display: none !important; }
.onair__label { display: inline; }

/* ============================================================
   Status bar
   ============================================================ */
.statusbar {
  width: var(--col);
  margin: 36px auto 24px;
  padding: 0 var(--gutter);
}
.statusbar__dl > div {
  flex: 1 1 33%;
  min-width: 33%;
  flex-direction: column;
  align-items: stretch;
  gap: 0;
}
.statusbar__dl > div + div {
  padding-left: 14px;
}
.statusbar__dl dt {
  padding-bottom: 6px;
  margin-bottom: 8px;
  border-bottom: 1px solid var(--rule);
}
.statusbar__dl dd {
  font-size: 12px;
  line-height: 1.4;
}
.statusbar__note {
  margin: 18px 0 0;
  font-size: 11px;
  line-height: 1.6;
  color: var(--ink-mute);
  padding-top: 18px;
  border-top: 1px solid var(--rule);
}

.statusbar.is-active     .dl dd { color: var(--accent); }
.statusbar.is-connected  .dl dd { color: var(--accent); }
.statusbar.is-failed     .dl dd { color: var(--warn); }

/* legacy bits we removed but defend in case any survive */
.statusbar__dot,
.statusbar__divider,
.statusbar__label,
.statusbar__value,
.statusbar__group { display: none !important; }
.signal-bars { display: none !important; }
.signal-bars span { display: none !important; }
#rxSignalBars { display: none !important; }
.panel__corner,
.panel__header,
.panel__index,
.panel__title,
.panel__pill,
.scanlines,
.grain,
.vignette,
.brand-mark,
.brand-mark__dot,
.dial,
.masthead__sub,
.masthead__brand,
.masthead__lockup,
.masthead__meta,
.meta-row,
.meta-label,
.meta-value,
.broadcast__head,
.broadcast__hint,
.broadcast__instruction,
.broadcast__instruction-em,
.scanner__head,
.scanner__instruction,
.alt-actions,
.payload,
.payload__head,
.payload__body,
.payload__label,
.payload__count,
.result,
.result__badge,
.result__copy,
.received,
.received__badge,
.received__meta,
.received__field,
.received__actions,
.footnote { display: none !important; }

/* ============================================================
   Chat
   ============================================================ */
.chat-log {
  border: 2px solid var(--ink);
  background: var(--paper-2);
  min-height: 280px;
  max-height: 56vh;
  overflow-y: auto;
  padding: 14px;
  margin: 0 0 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: thin;
  scrollbar-color: var(--rule) transparent;
}
.chat-log::-webkit-scrollbar { width: 6px; }
.chat-log::-webkit-scrollbar-thumb { background: var(--rule); }
.chat-log:empty::before {
  content: "// channel open — awaiting first transmission";
  margin: auto;
  color: var(--ink-mute);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-align: center;
}

.chat-msg {
  max-width: 88%;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  background: var(--paper);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.chat-msg--mine {
  align-self: flex-end;
  border-color: var(--accent);
}
.chat-msg--theirs {
  align-self: flex-start;
  border-color: var(--ink);
}
.chat-msg--system {
  align-self: center;
  border: 0;
  padding: 4px 8px;
  background: transparent;
  color: var(--ink-mute);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.chat-msg__body { color: var(--ink); }
.chat-msg__meta {
  display: flex;
  gap: 10px;
  font-size: 9px;
  letter-spacing: 0.22em;
  color: var(--ink-mute);
  text-transform: uppercase;
}
.chat-msg--mine .chat-msg__meta { justify-content: flex-end; }
.chat-msg__time { font-variant-numeric: tabular-nums; }
.chat-msg__ack {
  letter-spacing: 0;
  font-weight: 700;
}
.chat-msg__ack[data-status="sending"]   { color: var(--ink-mute); }
.chat-msg__ack[data-status="sent"]      { color: var(--ink-mute); }
.chat-msg__ack[data-status="delivered"] { color: var(--accent); }
.chat-msg__ack[data-status="failed"]    { color: var(--warn); }

/* ============================================================
   Composer
   ============================================================ */
.composer {
  display: block;
  margin: 0 0 12px;
}
.composer__head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--ink-mute);
  margin-bottom: 8px;
}
.composer__head label { color: var(--ink-mute); }
.composer__count { color: var(--ink); }
.composer__count span { color: var(--accent); }

textarea#chatInput,
.composer textarea {
  width: 100%;
  background: var(--paper-2);
  color: var(--ink);
  border: 2px solid var(--ink);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.55;
  padding: 14px;
  resize: vertical;
  min-height: 96px;
  margin: 0 0 12px;
  caret-color: var(--accent);
}
textarea#chatInput:focus,
.composer textarea:focus {
  outline: none;
  border-color: var(--accent);
}
textarea#chatInput::placeholder,
.composer textarea::placeholder {
  color: var(--ink-mute);
}

/* legacy composer surface (still referenced indirectly) */
.composer__textarea {
  width: 100%;
  background: var(--paper-2);
  color: var(--ink);
  border: 2px solid var(--ink);
  font-family: var(--font);
  font-size: 14px;
  line-height: 1.55;
  padding: 14px;
  resize: vertical;
  min-height: 96px;
}
.composer__textarea:focus { outline: none; border-color: var(--accent); }
.composer__field { position: relative; }
.composer__field-corner { display: none !important; }
.composer__label { display: flex; justify-content: space-between; }

/* ============================================================
   Toast
   ============================================================ */
.toast {
  position: fixed;
  bottom: calc(20px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  background: var(--ink);
  color: var(--paper);
  padding: 14px 22px;
  font-family: var(--font);
  font-weight: 700;
  font-size: 11px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  z-index: 200;
  opacity: 0;
  transition: opacity 0.14s;
  pointer-events: none;
}
.toast.is-visible { opacity: 1; }
.toast__bracket { display: none !important; }

/* ============================================================
   Reduced motion
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}