/* ══════════════════════════════════════════════
   AUDIOPIX — style.css
   Retro-futuristic lab equipment aesthetic
   ══════════════════════════════════════════════ */

:root {
  /* Background */
  --bg:       #060B18;
  --bg2:      #0A1020;
  --surface:  rgba(255,255,255,0.035);
  --surface2: rgba(255,255,255,0.06);

  /* Borders */
  --border:   rgba(255,255,255,0.07);
  --border2:  rgba(255,255,255,0.13);

  /* TX — amber/orange */
  --tx:       #FF7535;
  --tx2:      #FFB060;
  --tx-glow:  rgba(255,117,53,0.32);
  --tx-dim:   rgba(255,117,53,0.12);

  /* RX — teal/cyan */
  --rx:       #00D4C8;
  --rx2:      #80EDE8;
  --rx-glow:  rgba(0,212,200,0.32);
  --rx-dim:   rgba(0,212,200,0.10);

  /* Typography */
  --text:     #DDE0F0;
  --muted:    #5A5E7A;
  --dim:      #252840;

  /* Fonts */
  --f-disp: 'Orbitron', sans-serif;
  --f-mono: 'JetBrains Mono', monospace;
  --f-body: 'Syne', sans-serif;

  /* Radii */
  --r:  12px;
  --r2: 20px;
  --r3: 28px;
}

/* ─── RESET ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--f-body);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ─── BG CANVAS ─── */
#bgCanvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.85;
}

/* ─── APP CONTAINER ─── */
.app {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  padding: 28px 20px 72px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

/* ══════════════════════════════════════════════
   HEADER
   ══════════════════════════════════════════════ */
.app-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 13px;
}

.logo-glyph {
  width: 38px;
  height: 38px;
  color: var(--tx);
  flex-shrink: 0;
  filter: drop-shadow(0 0 8px var(--tx-glow));
  animation: logoPulse 3s ease-in-out infinite;
}

@keyframes logoPulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.7; }
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.logo-name {
  font-family: var(--f-disp);
  font-size: 15px;
  font-weight: 900;
  letter-spacing: 0.22em;
  background: linear-gradient(120deg, var(--tx) 0%, var(--tx2) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo-sub {
  font-family: var(--f-mono);
  font-size: 8px;
  letter-spacing: 0.28em;
  color: var(--muted);
  text-transform: uppercase;
}

/* Header right */
.header-right {
  display: flex;
  align-items: center;
  gap: 10px;
}

/* Settings button */
.btn-settings {
  display: flex;
  align-items: center;
  gap: 9px;
  background: var(--surface);
  border: 1px solid var(--border2);
  border-radius: 100px;
  padding: 8px 14px 8px 12px;
  color: var(--muted);
  font-family: var(--f-mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-settings:hover {
  background: var(--surface2);
  color: var(--text);
  border-color: rgba(255,117,53,0.3);
}

.settings-icon {
  color: var(--tx);
  display: flex;
  align-items: center;
  transition: transform 0.4s ease;
}

.btn-settings:hover .settings-icon { transform: rotate(45deg); }

.settings-label {
  display: none;
}

@media (min-width: 520px) {
  .settings-label { display: inline; }
}

.settings-badge {
  font-size: 8px;
  padding: 2px 8px;
  background: var(--tx-dim);
  border: 1px solid rgba(255,117,53,0.25);
  color: var(--tx);
  border-radius: 100px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  transition: all 0.3s;
}

/* Mode toggle */
.mode-toggle {
  display: flex;
  background: rgba(0,0,0,0.45);
  border: 1px solid var(--border2);
  border-radius: 100px;
  padding: 3px;
  gap: 2px;
}

.mode-btn {
  font-family: var(--f-disp);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.18em;
  padding: 8px 18px;
  border-radius: 100px;
  border: none;
  cursor: pointer;
  background: transparent;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 5px;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

.mode-arrow {
  font-size: 10px;
  opacity: 0.6;
}

.mode-btn.active-tx {
  background: linear-gradient(135deg, var(--tx) 0%, var(--tx2) 100%);
  color: #fff;
  box-shadow: 0 0 18px var(--tx-glow), 0 2px 12px rgba(255,117,53,0.25);
}

.mode-btn.active-rx {
  background: linear-gradient(135deg, var(--rx) 0%, var(--rx2) 100%);
  color: #041018;
  box-shadow: 0 0 18px var(--rx-glow), 0 2px 12px rgba(0,212,200,0.25);
}

/* ══════════════════════════════════════════════
   PANELS
   ══════════════════════════════════════════════ */
.panel {
  background: var(--surface);
  border-radius: var(--r2);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  position: relative;
  overflow: hidden;
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  animation: panelIn 0.4s cubic-bezier(0.4, 0, 0.2, 1) both;
}

.panel::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r2);
  pointer-events: none;
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.04) 0%,
    transparent 55%
  );
}

.panel::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--r2);
  pointer-events: none;
  border: 1px solid var(--border);
}

.tx-panel {
  box-shadow:
    0 0 60px rgba(255,117,53,0.055),
    inset 0 1px 0 rgba(255,117,53,0.08);
}

.tx-panel::after {
  border-color: rgba(255,117,53,0.15);
}

.rx-panel {
  box-shadow:
    0 0 60px rgba(0,212,200,0.055),
    inset 0 1px 0 rgba(0,212,200,0.08);
}

.rx-panel::after {
  border-color: rgba(0,212,200,0.15);
}

.panel.hidden { display: none; }

@keyframes panelIn {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Panel head */
.panel-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.panel-title-group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.panel-eyebrow {
  font-family: var(--f-mono);
  font-size: 8.5px;
  letter-spacing: 0.35em;
  text-transform: uppercase;
}

.panel-eyebrow.tx { color: var(--tx); }
.panel-eyebrow.rx { color: var(--rx); }

.panel-h2 {
  font-family: var(--f-disp);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--text);
}

/* Palette strip */
.pal-strip-wrap {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 5px;
}

.pal-strip {
  display: flex;
  height: 5px;
  width: 180px;
  border-radius: 100px;
  overflow: hidden;
  gap: 0.4px;
}

.pal-sw { flex: 1; }

.pal-count {
  font-family: var(--f-mono);
  font-size: 8px;
  letter-spacing: 0.18em;
}

.pal-count.tx { color: rgba(255,117,53,0.5); }

/* ══════════════════════════════════════════════
   DEVICE ROW
   ══════════════════════════════════════════════ */
.device-row {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(0,0,0,0.32);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 10px 14px;
  transition: border-color 0.2s;
}

.device-row:hover { border-color: var(--border2); }

.device-icon { font-size: 15px; flex-shrink: 0; }

.device-lbl {
  font-family: var(--f-mono);
  font-size: 8.5px;
  letter-spacing: 0.3em;
  color: var(--muted);
  white-space: nowrap;
  text-transform: uppercase;
  flex-shrink: 0;
}

.device-sel {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text);
  font-family: var(--f-mono);
  font-size: 10px;
  cursor: pointer;
  outline: none;
  -webkit-appearance: none;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.device-sel option { background: #0C1122; color: var(--text); }

.device-badge {
  font-family: var(--f-mono);
  font-size: 8px;
  letter-spacing: 0.08em;
  color: var(--muted);
  background: var(--dim);
  border-radius: 6px;
  padding: 3px 8px;
  flex-shrink: 0;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ══════════════════════════════════════════════
   DROP ZONE
   ══════════════════════════════════════════════ */
.drop-zone {
  border: 2px dashed rgba(255,117,53,0.22);
  border-radius: var(--r2);
  min-height: 188px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  background: rgba(255,117,53,0.018);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-zone:hover {
  border-color: var(--tx);
  background: rgba(255,117,53,0.045);
  box-shadow: inset 0 0 40px rgba(255,117,53,0.06);
}

.drop-zone.drag-over {
  border-color: var(--tx2);
  background: rgba(255,117,53,0.07);
  transform: scale(1.008);
}

.drop-zone.loaded {
  border-color: rgba(255,117,53,0.35);
  background: transparent;
}

#previewCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  opacity: 0;
  transition: opacity 0.6s ease;
  pointer-events: none;
}

.drop-zone.loaded #previewCanvas { opacity: 1; }

.drop-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  text-align: center;
  pointer-events: none;
  transition: opacity 0.3s;
  z-index: 1;
}

.drop-zone.loaded .drop-inner { display: none; }

.drop-icon-wrap {
  position: relative;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-rings {
  position: absolute;
  inset: 0;
}

.ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,117,53,0.2);
  animation: ringPulse 2.4s ease-in-out infinite;
}

.r1 { inset: 0;  animation-delay: 0s;    }
.r2 { inset: -8px; animation-delay: 0.6s; }
.r3 { inset: -16px; animation-delay: 1.2s; }

@keyframes ringPulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50%       { opacity: 0.7; transform: scale(1.05); }
}

.drop-glyph {
  font-size: 28px;
  opacity: 0.45;
  position: relative;
  z-index: 1;
}

.drop-zone:hover .drop-glyph { opacity: 0.7; }

.drop-title {
  font-family: var(--f-disp);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--muted);
}

.drop-sub {
  font-family: var(--f-mono);
  font-size: 8.5px;
  color: var(--dim);
  letter-spacing: 0.08em;
}

.drop-info-bar {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  background: linear-gradient(transparent, rgba(0,0,0,0.82));
  padding: 28px 16px 12px;
  display: none;
}

.drop-zone.loaded .drop-info-bar { display: block; }

.drop-info-bar span {
  font-family: var(--f-mono);
  font-size: 8.5px;
  letter-spacing: 0.14em;
  color: rgba(255,117,53,0.65);
}

/* ══════════════════════════════════════════════
   PROGRESS
   ══════════════════════════════════════════════ */
.progress-section {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.progress-top {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
}

.progress-lbl {
  font-family: var(--f-mono);
  font-size: 8.5px;
  letter-spacing: 0.26em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 4px;
}

.progress-detail {
  font-family: var(--f-mono);
  font-size: 9px;
  color: var(--muted);
  letter-spacing: 0.08em;
}

.progress-pct {
  font-family: var(--f-disp);
  font-size: 30px;
  font-weight: 900;
  line-height: 1;
  color: var(--tx);
  text-shadow: 0 0 20px var(--tx-glow);
  transition: color 0.3s;
}

.progress-track {
  width: 100%;
  height: 4px;
  background: rgba(255,255,255,0.05);
  border-radius: 100px;
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--tx) 0%, var(--tx2) 100%);
  box-shadow: 0 0 12px rgba(255,117,53,0.75);
  width: 0%;
  transition: width 0.1s linear;
}

/* ══════════════════════════════════════════════
   TX SPECTRUM
   ══════════════════════════════════════════════ */
.spec-section {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.spec-label {
  font-family: var(--f-mono);
  font-size: 8px;
  letter-spacing: 0.32em;
  color: var(--dim);
}

.spec-bars {
  display: flex;
  align-items: flex-end;
  gap: 1.5px;
  height: 44px;
  padding: 0 1px;
}

.spec-bar {
  flex: 1;
  border-radius: 2px 2px 0 0;
  background: rgba(255,117,53,0.18);
  min-height: 2px;
  transition: height 0.055s ease, background 0.055s ease;
}

/* ══════════════════════════════════════════════
   BUTTONS
   ══════════════════════════════════════════════ */
.action-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.btn-primary {
  flex: 1;
  min-width: 100px;
  border: none;
  border-radius: var(--r);
  padding: 13px 28px;
  font-family: var(--f-disp);
  font-size: 10.5px;
  font-weight: 700;
  letter-spacing: 0.2em;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.18), transparent);
  opacity: 0;
  transition: opacity 0.2s;
}

.btn-primary:hover:not(:disabled)::before { opacity: 1; }

.btn-primary.tx {
  background: linear-gradient(135deg, var(--tx) 0%, var(--tx2) 100%);
  color: #fff;
  box-shadow: 0 4px 22px var(--tx-glow);
}

.btn-primary.tx:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,117,53,0.48);
}

.btn-primary.tx:active { transform: translateY(0); }

.btn-primary.rx {
  background: linear-gradient(135deg, var(--rx) 0%, var(--rx2) 100%);
  color: #041018;
  box-shadow: 0 4px 22px var(--rx-glow);
}

.btn-primary.rx:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,212,200,0.48);
}

.btn-primary:disabled {
  opacity: 0.32;
  cursor: not-allowed;
  transform: none !important;
}

.btn-primary.stopping {
  background: linear-gradient(135deg, #FF3060, #FF7535) !important;
  color: #fff !important;
  box-shadow: 0 4px 22px rgba(255,48,96,0.38) !important;
}

.btn-ghost {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 13px 20px;
  color: var(--muted);
  font-family: var(--f-disp);
  font-size: 9.5px;
  letter-spacing: 0.18em;
  cursor: pointer;
  transition: all 0.22s;
  flex-shrink: 0;
}

.btn-ghost:hover {
  background: var(--surface);
  color: var(--text);
  border-color: var(--border2);
}

/* ══════════════════════════════════════════════
   STATUS BAR
   ══════════════════════════════════════════════ */
.status-bar {
  display: flex;
  align-items: center;
  gap: 9px;
  font-family: var(--f-mono);
  font-size: 9.5px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.led {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--dim);
  flex-shrink: 0;
  transition: all 0.4s;
}

.led.on-tx {
  background: var(--tx);
  box-shadow: 0 0 8px var(--tx), 0 0 16px rgba(255,117,53,0.4);
  animation: ledBlink 1.3s ease-in-out infinite;
}

.led.on-rx {
  background: var(--rx);
  box-shadow: 0 0 8px var(--rx), 0 0 16px rgba(0,212,200,0.4);
  animation: ledBlink 1.3s ease-in-out infinite;
}

@keyframes ledBlink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

/* ══════════════════════════════════════════════
   RX PANEL ELEMENTS
   ══════════════════════════════════════════════ */
.rx-auto-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 5px;
}

.auto-badge {
  font-family: var(--f-mono);
  font-size: 7.5px;
  letter-spacing: 0.26em;
  color: var(--rx);
  background: var(--rx-dim);
  border: 1px solid rgba(0,212,200,0.2);
  border-radius: 100px;
  padding: 3px 10px;
}

.auto-detail {
  font-family: var(--f-mono);
  font-size: 8.5px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

/* RX Spectrum */
.rx-spec-wrap {
  height: 88px;
  border-radius: var(--r);
  overflow: hidden;
  background: rgba(0,0,0,0.42);
  border: 1px solid var(--border);
  position: relative;
}

#rxSpecCanvas {
  width: 100%;
  height: 100%;
  display: block;
}

.rx-spec-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 4px 10px;
  background: linear-gradient(transparent, rgba(0,0,0,0.6));
  pointer-events: none;
}

.rx-freq-low,
.rx-freq-hi {
  font-family: var(--f-mono);
  font-size: 7.5px;
  color: rgba(0,212,200,0.45);
  letter-spacing: 0.1em;
}

.rx-freq-mid {
  font-family: var(--f-mono);
  font-size: 7px;
  letter-spacing: 0.22em;
  color: rgba(0,212,200,0.3);
}

/* RX State row */
.rx-state-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 15px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--r);
  gap: 12px;
}

.rx-phase-wrap { display: flex; flex-direction: column; gap: 3px; }

.rx-phase-label {
  font-family: var(--f-disp);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.2em;
  color: var(--rx);
}

.rx-phase-sub {
  font-family: var(--f-mono);
  font-size: 8.5px;
  color: var(--muted);
  letter-spacing: 0.06em;
}

.rx-pixel-count {
  font-family: var(--f-disp);
  font-size: 13px;
  font-weight: 700;
  color: rgba(0,212,200,0.55);
  white-space: nowrap;
}

/* Image output */
.img-output {
  background: rgba(0,0,0,0.45);
  border: 1px solid var(--border);
  border-radius: var(--r2);
  min-height: 200px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}

.img-ph {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  opacity: 0.22;
}

.img-ph-icon { font-size: 38px; }

.img-ph-text {
  font-family: var(--f-disp);
  font-size: 9px;
  letter-spacing: 0.3em;
  color: var(--rx);
}

#rxCanvas {
  max-width: 100%;
  max-height: 400px;
  width: 100%;
  image-rendering: pixelated;
  display: none;
}

.img-output.has-img .img-ph { display: none; }
.img-output.has-img #rxCanvas { display: block; }
.img-output.has-img .img-actions { display: flex; }

.img-actions {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: none;
  gap: 8px;
}

.btn-save {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--f-disp);
  font-size: 8.5px;
  letter-spacing: 0.16em;
  background: rgba(0,212,200,0.14);
  border: 1px solid rgba(0,212,200,0.32);
  color: var(--rx);
  border-radius: 9px;
  padding: 7px 14px;
  cursor: pointer;
  transition: all 0.2s;
  backdrop-filter: blur(8px);
}

.btn-save:hover {
  background: rgba(0,212,200,0.26);
  box-shadow: 0 0 12px rgba(0,212,200,0.3);
}

/* ══════════════════════════════════════════════
   CONTROLS POPUP OVERLAY
   ══════════════════════════════════════════════ */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.72);
  z-index: 300;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

.overlay.hidden { display: none; }

.controls-popup {
  background: #0C1124;
  border: 1px solid var(--border2);
  border-bottom: none;
  border-radius: 30px 30px 0 0;
  padding: 32px 28px 44px;
  width: 100%;
  max-width: 580px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  animation: slideUp 0.38s cubic-bezier(0.4, 0, 0.2, 1) both;
  max-height: 92vh;
  overflow-y: auto;
}

@keyframes slideUp {
  from { transform: translateY(100%); opacity: 0; }
  to   { transform: translateY(0); opacity: 1; }
}

/* Popup head */
.popup-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.popup-eyebrow {
  font-family: var(--f-mono);
  font-size: 8px;
  letter-spacing: 0.36em;
  color: var(--muted);
  margin-bottom: 5px;
}

.popup-title {
  font-family: var(--f-disp);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.15em;
  color: var(--tx);
}

.btn-close {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid var(--border2);
  background: var(--surface2);
  color: var(--muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 0.22s;
}

.btn-close:hover {
  background: var(--surface);
  color: var(--text);
  transform: rotate(90deg);
}

/* Control groups */
.ctrl-group {
  display: flex;
  flex-direction: column;
  gap: 13px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border);
}

.ctrl-group:last-of-type { border-bottom: none; }

.ctrl-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.ctrl-label {
  font-family: var(--f-mono);
  font-size: 9px;
  letter-spacing: 0.26em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 3px;
}

.ctrl-desc {
  font-family: var(--f-mono);
  font-size: 8px;
  color: var(--dim);
  letter-spacing: 0.06em;
}

.ctrl-val-big {
  font-family: var(--f-disp);
  font-size: 22px;
  font-weight: 900;
  color: var(--tx);
  line-height: 1;
  white-space: nowrap;
  text-align: right;
  min-width: 80px;
  text-shadow: 0 0 16px var(--tx-glow);
  transition: all 0.2s;
}

/* Palette preview */
.pal-preview-wrap {
  background: rgba(0,0,0,0.3);
  border-radius: 8px;
  padding: 8px;
}

.pal-preview {
  display: flex;
  height: 10px;
  border-radius: 6px;
  overflow: hidden;
  gap: 0.5px;
}

.pal-swatch { flex: 1; }

/* Resolution grid preview */
.res-preview-wrap {
  display: flex;
  align-items: center;
  gap: 14px;
  background: rgba(0,0,0,0.3);
  border-radius: 10px;
  padding: 10px 12px;
}

.res-grid {
  display: grid;
  width: 56px;
  height: 56px;
  gap: 0.5px;
  background: var(--border);
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
}

.res-grid-cell { min-height: 2px; }

.res-stats {
  font-family: var(--f-disp);
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,117,53,0.6);
  letter-spacing: 0.1em;
}

/* Speed bar */
.tm-speed-bar {
  height: 8px;
  background: rgba(255,255,255,0.05);
  border-radius: 100px;
  overflow: hidden;
  position: relative;
  display: flex;
  align-items: center;
}

.speed-fill {
  height: 100%;
  border-radius: 100px;
  background: linear-gradient(90deg, var(--rx), var(--tx));
  transition: width 0.2s ease;
}

.speed-label {
  position: absolute;
  right: 10px;
  font-family: var(--f-mono);
  font-size: 7.5px;
  letter-spacing: 0.12em;
  color: rgba(255,255,255,0.4);
  white-space: nowrap;
}

/* Range inputs */
.range-input {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  background: rgba(255,117,53,0.2);
  border-radius: 100px;
  outline: none;
  cursor: pointer;
  transition: background 0.2s;
}

.range-input:hover {
  background: rgba(255,117,53,0.32);
}

.range-input::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--tx), var(--tx2));
  box-shadow: 0 0 14px rgba(255,117,53,0.65), 0 2px 6px rgba(0,0,0,0.4);
  cursor: pointer;
  transition: transform 0.15s, box-shadow 0.15s;
}

.range-input::-webkit-slider-thumb:hover {
  transform: scale(1.22);
  box-shadow: 0 0 20px rgba(255,117,53,0.85), 0 2px 8px rgba(0,0,0,0.5);
}

.range-input::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--tx), var(--tx2));
  cursor: pointer;
}

.range-labels {
  display: flex;
  justify-content: space-between;
  font-family: var(--f-mono);
  font-size: 8px;
  color: var(--dim);
  letter-spacing: 0.06em;
}

/* ── Estimate box ── */
.estimate-box {
  background: rgba(0,0,0,0.32);
  border: 1px solid var(--border);
  border-radius: var(--r);
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.est-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.est-title {
  font-family: var(--f-mono);
  font-size: 8.5px;
  letter-spacing: 0.3em;
  color: var(--muted);
  text-transform: uppercase;
}

.est-note {
  font-family: var(--f-mono);
  font-size: 8.5px;
  color: var(--tx);
  letter-spacing: 0.06em;
}

.est-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.5fr;
  gap: 10px;
}

.est-card {
  background: var(--surface);
  border-radius: 10px;
  padding: 11px 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.est-card-wide { }

.est-val {
  font-family: var(--f-disp);
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
  line-height: 1;
  letter-spacing: 0.06em;
  transition: all 0.2s;
}

.est-val.accent { color: var(--tx); text-shadow: 0 0 12px var(--tx-glow); }

.est-lbl {
  font-family: var(--f-mono);
  font-size: 7.5px;
  color: var(--muted);
  letter-spacing: 0.12em;
}

/* Timeline bar */
.est-timeline {
  display: flex;
  height: 6px;
  border-radius: 100px;
  overflow: hidden;
  background: rgba(255,255,255,0.04);
  gap: 1px;
}

.etl-seg { border-radius: 100px; transition: width 0.3s ease; }
.etl-hdr { background: rgba(255,200,0,0.5); }
.etl-pix { background: linear-gradient(90deg, var(--tx), var(--tx2)); flex: 1; }

/* Apply button */
.btn-apply {
  width: 100%;
  background: linear-gradient(135deg, var(--tx) 0%, var(--tx2) 100%);
  border: none;
  border-radius: var(--r);
  padding: 14px;
  color: #fff;
  font-family: var(--f-disp);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.22em;
  cursor: pointer;
  box-shadow: 0 4px 22px var(--tx-glow);
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.btn-apply::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.18), transparent);
  opacity: 0;
  transition: opacity 0.2s;
}

.btn-apply:hover::before { opacity: 1; }

.btn-apply:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,117,53,0.5);
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border2); border-radius: 100px; }

/* ── Selection ── */
::selection { background: rgba(255,117,53,0.3); }