/* =================================================================
   1. THEME & COLOR DEFINITIONS
   ================================================================= */

/* --- Default Theme (Dark) --- */
:root {
  --bg: #0b1020;
  --fg: #eef2ff;
  --card: #121733;
  --accent: #7aa2ff;
  --grid: rgba(255, 255, 255, 0.2);
  --canvas-bg: #0b0f29;
  --axis: rgba(255, 255, 255, 0.25);
  --axis-text: #cbd5e1;
  --trace: #7aa2ff;
  --btn-bg: #7aa2ff;
  --btn-fg: #fff;
  --toggle-on-bg: var(--btn-bg);
  --toggle-on-fg: #0f172a;
  --plot-trace-color: rgba(255, 255, 255, 0.5);
  --axis-x: #ff4d4d;
  --axis-y: #4dff4d;
  --axis-z: #4d4dff;
}

/* --- Bright Theme --- */
body[data-theme=bright] {
  --bg: #fff;
  --fg: #111827;
  --card: #f3f4f6;
  --accent: #1f2937;
  --grid: rgba(0, 0, 0, 0.15);
  --canvas-bg: #fff;
  --axis: rgba(17, 24, 39, 0.55);
  --axis-text: #374151;
  --trace: #1f2937;
  --btn-bg: #6b7280;
  --btn-fg: #fff;
  --toggle-on-fg: #111827;
  --plot-trace-color: rgba(0, 0, 0, 0.2);
  --axis-x: #d60000;
  --axis-y: #008f00;
  --axis-z: #0000d6;
}

/* --- Green CRT Theme --- */
body[data-theme=greencrt] {
  --bg: #001a00;
  --fg: #a8ffb0;
  --card: #002400;
  --accent: #00ff66;
  --grid: rgba(0, 255, 120, 0.25);
  --canvas-bg: #000;
  --axis: rgba(0, 255, 120, 0.35);
  --axis-text: #a8ffb0;
  --trace: #00ff66;
  --btn-bg: #7dffb3;
  --btn-fg: #064e3b;
  --toggle-on-fg: #064e3b;
  --plot-trace-color: rgba(0, 255, 120, 0.45);
  --axis-x: #00dd00;
  --axis-y: #33ff33;
  --axis-z: #55ff55;
}

/* --- Amber CRT Theme --- */
body[data-theme=ambercrt] {
  --bg: #1a0f00;
  --fg: #ffd9a6;
  --card: #221300;
  --accent: #ffb347;
  --grid: rgba(255, 190, 120, 0.25);
  --canvas-bg: #000;
  --axis: rgba(255, 190, 120, 0.35);
  --axis-text: #ffd9a6;
  --trace: #ffb347;
  --btn-bg: #ffd08a;
  --btn-fg: #7a4a00;
  --toggle-on-fg: #7a4a00;
  --plot-trace-color: rgba(255, 190, 120, 0.45);
  --axis-x: #ffc877;
  --axis-y: #ffd699;
  --axis-z: #ffe0b3;
}


/* =================================================================
   2. GENERAL & BASE STYLES
   ================================================================= */

* { box-sizing: border-box; }
html { height: 100%; }

body {
  margin: 0;
  padding: 24px;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Inter, Arial, sans-serif;
  font-size: 14px;
}

#app-container {
  display: flex;
  flex-direction: column;
  height: calc(100vh - 48px);
  max-height: calc(100vh - 48px);
}

h1 {
  margin: 0 0 12px;
  font-size: 22px;
  display: flex;
  gap: 12px;
  align-items: center;
  width: 100%;
  justify-content: space-between;
}

h1 .small {
  font-size: 12px;
  opacity: .7;
}

select, button, input[type=number] {
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  background: #0f1430;
  color: var(--fg);
}

input[readonly] {
  cursor: not-allowed;
  opacity: 0.7;
}

body[data-theme=bright] select,
body[data-theme=bright] button,
body[data-theme=bright] input[type=number] {
  background: #fff;
  border-color: rgba(0, 0, 0, 0.15);
  color: var(--fg);
}

body[data-theme=greencrt] select,
body[data-theme=greencrt] button,
body[data-theme=greencrt] input[type=number] {
  background: #001e00;
  border-color: rgba(0, 255, 120, 0.25);
  color: var(--fg);
}

body[data-theme=ambercrt] select,
body[data-theme=ambercrt] button,
body[data-theme=ambercrt] input[type=number] {
  background: #201200;
  border-color: rgba(255, 190, 120, 0.25);
  color: var(--fg);
}

button {
  cursor: pointer;
  font-weight: 600;
}
button:active { transform: translateY(1px); }
button.primary {
  background: var(--btn-bg);
  border: 1px solid color-mix(in oklab, var(--btn-bg) 70%, #000);
  color: var(--btn-fg);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.25);
}
button.primary:hover { filter: brightness(1.05); }


/* =================================================================
   3. LAYOUT & CARD STYLES
   ================================================================= */

.topbar { flex-shrink: 0; }
.app {
  display: grid;
  grid-template-columns: auto 1fr; 
  gap: 12px;
  flex-grow: 1;
  min-height: 0;
}

.card {
  background: var(--card);
  border-radius: 16px;
  padding: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  display: flex;
  flex-direction: column;
  min-height: 0;
  overflow: auto;
}

.right-grid {
  display: grid;
  gap: 12px;
  flex-grow: 1;
  min-height: 0;
}

.subpanel {
  border: 1px solid var(--axis);
  border-radius: 12px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.subhead {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
  min-height: 38px;
  flex-shrink: 0;
}

.subhead .title {
  margin: 0;
  font-size: 13px;
  opacity: .85;
}

.panel-title {
  font-size: 13px;
  opacity: .8;
  margin: 0 0 8px;
}


/* =================================================================
   4. COMPONENT STYLES
   ================================================================= */

.table8 {
  width: 100%;
  border-collapse: collapse;
}

.table8 th,
.table8 td {
  padding: 3px 4px;
  text-align: left;
  font-size: 14px;
}

.table8 thead th {
  font-size: 12px;
  opacity: .8;
}

.table8 tr { border-bottom: 1px solid rgba(255, 255, 255, 0.15); }
.table8 .dim { opacity: .4; }
.table8 .w-amp { width: 70px; }
.table8 .w-freq { width: 90px; }
.table8 .w-phase { width: 70px; }

.swatch {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 3px;
  margin-right: 6px;
  border: 1px solid var(--axis);
  vertical-align: middle;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.toggle input {
  width: 36px;
  height: 22px;
  appearance: none;
  background: rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  position: relative;
  outline: none;
  cursor: pointer;
}

.toggle input:checked { background: var(--accent); }
.toggle input::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  background: #fff;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform .15s ease;
}

.toggle input:checked::after { transform: translateX(14px); }

.display-toggles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 12px;
}

.panel-toggle {
  padding: 12px 8px;
  border-radius: 12px;
  border: 1px solid color-mix(in oklab, var(--btn-bg) 40%, #000);
  background: var(--card);
  color: var(--fg);
  text-align: center;
  font-size: 13px;
}

.panel-toggle[data-on=true] {
  background: var(--btn-bg);
  color: var(--btn-fg);
  border-color: color-mix(in oklab, var(--btn-bg) 70%, #000);
}

canvas {
  width: 100%;
  flex-grow: 1;
  min-height: 0;
  background: var(--canvas-bg);
  border-radius: 12px;
}


/* =================================================================
   5. THEME-SPECIFIC FIXES & OVERRIDES
   ================================================================= */

body[data-theme="bright"] .panel-toggle[data-on="true"] {
  background: #ffffff !important;
  color: #111827 !important;
  border-color: rgba(0, 0, 0, 0.30) !important;
}

body[data-theme="bright"] .panel-toggle[data-on="false"] {
  background: var(--btn-bg) !important;
  color: var(--btn-fg) !important;
  border-color: color-mix(in oklab, var(--btn-bg) 70%, #000) !important;
}

body[data-theme="bright"] .toggle input { background: rgba(0,0,0,0.15); }
body[data-theme="greencrt"] .toggle input { background: rgba(0, 255, 120, 0.25); }
body[data-theme="ambercrt"] .toggle input { background: rgba(255, 190, 120, 0.25); }

body[data-theme="greencrt"] .simulate-button-container .primary {
  background-color: var(--btn-bg);
  color: var(--btn-fg);
}

body[data-theme="ambercrt"] .simulate-button-container .primary {
  background-color: var(--btn-bg);
  color: var(--btn-fg);
}


/* =================================================================
   6. HELPER & UTILITY CLASSES
   ================================================================= */

.d-flex { display: flex; }
.flex-wrap { flex-wrap: wrap; }
.gap-8 { gap: 8px; }
.gap-10 { gap: 10px; }
.gap-12 { gap: 12px; }
.align-items-center { align-items: center; }
.align-items-end { align-items: end; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.left-controls {
  display: grid;
  gap: 8px;
  margin-bottom: 12px;
}

.simulation-settings { width: 80px; }
.simulation-settings-sr { width: 95px; }
.panel-title-margin-top { margin-top: 12px; }

.simulate-button-container {
  display: flex;
  justify-content: center;
  margin-top: 18px;
}

.simulate-button-container .primary {
  padding: 18px 32px;
  font-size: 18px;
  border-radius: 14px;
}

.simulate-button-container .primary.stale {
  opacity: 0.6;
  box-shadow: none;
  transition: opacity 0.2s;
}

.spectrum-max-hz {
  width: 100px;
  margin-left: 6px;
}

.checkbox-label {
  margin-left: 6px;
}

.checkbox-label,
label input[type=checkbox] {
  vertical-align: middle;
}

.window-select { margin-left: 6px; }
.turn-time-input {
  width: 90px;
  margin-left: 6px;
}

.plot-speed-input {
  width: 70px;
  margin-left: 6px;
}

/* --- 3D View Styles --- */
.view3d-button-container {
  display: flex;
  justify-content: center;
  margin-top: 12px;
}

#view3d-container {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg);
  z-index: 100;
  padding: 0;
}

#view3d-container canvas {
  display: block;
  width: 100%;
  height: 100%;
  border-radius: 0;
}

.close-3d-button {
  position: absolute;
  top: 24px;
  right: 24px;
  z-index: 110;
}

.view3d-theme-controls {
  position: absolute;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 110;
  display: flex;
  gap: 8px;
}

.view3d-anim-controls {
  position: absolute;
  bottom: 24px;
  left: 24px;
  z-index: 110;
  display: flex;
  gap: 12px;
  align-items: center;
}

.view3d-view-controls {
  position: absolute;
  bottom: 24px;
  right: 24px;
  z-index: 110;
  display: flex;
  gap: 12px;
  align-items: center;
}

.time-axis-label {
  margin: 0;
  padding: 8px 10px;
  background: var(--card);
  border-radius: 10px;
  font-size: 13px;
  opacity: 0.8;
}

.advance-speed-input {
  width: 80px;
  margin-left: 6px;
}

.play-pause-btn {
  padding: 12px 24px;
  font-size: 16px;
}
/* HIDE Full Plot View button safely (requested) */
#fullPlotViewBtn { display: none !important; }

/* Hide Sample Rate group in the UI (logic stays active) */
#sampleRateGroup { display: none !important; }


/* === Topbar layout for logo-left / title-center / theme-right === */
.topbar {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.topbar-left { display: flex; align-items: center; }
.client-logo { height: 40px; width: auto; display: block; }

.topbar-title {
  grid-column: 2;           /* asegura que esté en la segunda columna */
  justify-self: center;     /* centra horizontalmente en esa columna */
  margin: 0;
  text-align: center;
}


.topbar-right { justify-self: end; }

#view3d-container .client-logo {
  position: absolute;
  top: 8px;
  left: 12px;
  height: 40px;      /* mismo alto acordado */
  width: auto;
  z-index: 5;
  pointer-events: none; /* no bloquea rotación/drag del 3D */
}


/* === Postprocessing fullscreen === */
.postproc-button-container {
  display: flex;
  justify-content: center;
  margin-top: 8px;
}

#postproc-container {
  position: fixed;
  inset: 0;
  background-color: var(--bg);
  z-index: 120;
  padding: 0;
  display: none;   /* ← importante */
}

#postproc-container .client-logo {
  position: absolute;
  top: 8px;
  left: 12px;
  height: 40px;
  width: auto;
  z-index: 125;
  pointer-events: none;
}

.postproc-theme-controls {
  position: absolute;
  top: 24px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 125;
  display: flex;
  gap: 8px;
}

/* Postproc header layout: place theme + close on the right */
#postproc-header {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  column-gap: 12px;
  padding: 8px 12px;
  margin-bottom: 8px;
}
#postproc-header .postproc-title { margin: 0; text-align: center; justify-self: center; }
#postproc-header .client-logo { position: static; top: auto; left: auto; height: 36px; width: auto; }
#postproc-header .postproc-theme-controls { position: static; transform: none; left: auto; top: auto; z-index: auto; margin-right: 12px; }
#postproc-header #closePostBtn.close-3d-button { position: static; top: auto; right: auto; z-index: auto; }

/* Grid vertical con aire entre paneles */
.postproc-grid { /* legacy default retained but overridden below */ }

/* New 3-row structure: use row wrappers and fill viewport */
.postproc-grid > .postproc-panel { display: none; }
.postproc-row { display: grid; grid-template-columns: minmax(280px,340px) 1fr; column-gap: 10px; min-height: 0; }
.postproc-side, .postproc-main { padding: 6px 8px; min-width: 0; min-height: 0; }
.postproc-side > :first-child, .postproc-main > :first-child { margin-top: 0; }
.postproc-side > :last-child,  .postproc-main > :last-child  { margin-bottom: 0; }
#postproc-container { display: flex; flex-direction: column; height: 100vh; min-height: 0; }
#postproc-container .postproc-grid {
  flex: 1 1 auto;
  display: grid;
  grid-template-rows: 0.9fr 0.9fr 1.2fr;
  row-gap: 10px;
  min-height: 0;
  overflow: hidden;
  position: static; top: auto; left: auto; right: auto; bottom: auto; margin-top: 0;
}

@media (max-height: 900px) {
  #postproc-container .postproc-grid {
    grid-template-rows: 0.8fr 0.8fr 1.4fr;
  }
}
@media (max-height: 720px) {
  #postproc-container .postproc-grid {
    grid-template-rows: 0.75fr 0.75fr 1.5fr;
    row-gap: 8px;
  }
  .postproc-side, .postproc-main { padding: 4px 6px; }
}

/* === Fine-tuning: equal row heights, compact spacing (no vertical scroll) === */
/* 1) Equal heights (override previous proportions) */
#postproc-container .postproc-grid {
  grid-template-rows: 1.1fr 1.1fr 1.1fr !important; /* +10% por fila */
  row-gap: 6px; /* un poco más de aire */
}

/* 2) Compact inner padding of columns */
.postproc-side, .postproc-main {
  padding: 0 6px;
  box-sizing: border-box;
  min-width: 0;
  min-height: 0 !important;
}

/* 3) Remove extra vertical margins of immediate content */
.postproc-side > *:first-child, .postproc-main > *:first-child { margin-top: 0 !important; }
.postproc-side > *:last-child,  .postproc-main > *:last-child  { margin-bottom: 0 !important; }

/* 4) Even more compact header */
#postproc-header {
  margin-bottom: 4px;
  padding-top: 2px;
  padding-bottom: 2px;
}

/* 5) Ensure rows can shrink */
.postproc-row { align-items: stretch; min-height: 0; }

/* Override row columns and gap compactness */
.postproc-row {
  display: grid;
  grid-template-columns: minmax(280px, 340px) 1fr;
  column-gap: 8px;
  min-height: 0 !important;
}

/* Avoid inherited min-heights/limits */
.postproc-row, .postproc-side, .postproc-main,
#postprocOriginal, #postprocSampled, #postprocSpectrum {
  max-height: none !important;
}

/* 6) Media queries: keep equality and compress further on short heights */
@media (max-height: 900px) {
  #postproc-container .postproc-grid {
    grid-template-rows: 1fr 1fr 1fr !important;
    row-gap: 6px;
  }
  .postproc-side, .postproc-main { padding: 2px 4px; }
}
@media (max-height: 720px) {
  #postproc-container .postproc-grid {
    grid-template-rows: 1fr 1fr 1fr !important;
    row-gap: 4px;
  }
  .postproc-side, .postproc-main { padding: 1px 4px; }
}

.postproc-panel {
  background: var(--card);
  border: 1px solid var(--axis);
  border-radius: 12px;
  padding: 8px;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

.postproc-params {
  min-height: 0;
  overflow: auto;
}

.postproc-controls select,
.postproc-controls button {
  padding: 8px 10px;
  border-radius: 10px;
}

.segmented {
  display: inline-flex;
  border: 1px solid color-mix(in oklab, var(--btn-bg) 40%, #000);
  border-radius: 10px;
  overflow: hidden;
}
.segmented > button {
  background: var(--card);
  color: var(--fg);
  border: none;
}
.segmented > button[data-active="true"] {
  background: var(--btn-bg);
  color: var(--btn-fg);
}

.postproc-panel canvas {
  width: 100%;
  flex-grow: 1;
  background: var(--canvas-bg);
  border-radius: 10px;
}

.postproc-zoom button { min-width: 36px; }
#ppZoomInfo { opacity: .7; }
/* TODO(postproc 3-strips): pending grid layout scaffolding - no functional changes */
/* === Postprocessing container: full-height layout overrides === */
html, body { height: 100%; }
#postproc-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh; /* ocupa toda la pantalla */
}
#postproc-header {
  flex: 0 0 auto;
}
/* removed incorrect #postproc-grid block (no matching id in HTML) */

/* === WAVEFORM: tighten spacing above view/scroll controls === */
#pp-frame-waveform .pp-view-controls {
  margin-top: 6px;   /* reduce si estaba muy grande */
}

/* === WAVEFORM: Bit depth on a single line with label === */
#pp-frame-waveform #pp-bitdepth-row {
  display: flex;
  align-items: center;    /* alinear verticalmente label y botones */
  gap: 8px;
  margin: 4px 0 6px 0;    /* compacto para ganar un renglón */
}
#pp-frame-waveform #pp-bitdepth-row > label {
  margin: 0;
  white-space: nowrap;    /* que no se corte "Bit depth" */
  font-size: 12.5px;
}
#pp-frame-waveform #pp-bitdepth-row .btn-row-inline {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
#pp-frame-waveform #pp-bitdepth-row .no-wrap {
  white-space: nowrap;    /* fuerza ambos botones en la misma línea */
}

/* Botones compactos (si existen clases btn/btn-xs) */
#pp-frame-waveform #pp-bitdepth-row .btn.btn-xs {
  padding: 2px 8px;
  line-height: 1.3;
  height: auto;
}

@media (max-width: 720px) {
  /* En pantallas muy angostas, permitir wrap si no entra */
  #pp-frame-waveform #pp-bitdepth-row .no-wrap {
    white-space: normal;
  }
}

/* === SOURCE: Fmax single-line, tight under select === */
#pp-frame-source #pp-fmax-row {
  margin-top: 3px;        /* pegado al select */
  margin-bottom: 0;
  line-height: 1.2;
  white-space: nowrap;    /* forzar 1 renglón */
  font-size: 12.5px;      /* sutilmente más chico */
}

#pp-frame-source #pp-fmax-row #ppFmaxValue {
  font-weight: 600;       /* resaltar el número */
}

/* === SOURCE: title → select spacing (final override) === */
#pp-frame-source .pp-frame-title {
  margin: 0 0 3px 0;    /* aún más cerca del select */
  line-height: 1.2;
}

#pp-frame-source .pp-frame-body .form-row:first-of-type {
  margin-top: 0;        /* select pegado al título */
}

#pp-frame-source select#ppSource {
  height: 1.8em;        /* ~un renglón */
  line-height: 1.8em;
  padding: 0 8px;
  margin-top: 0;
}

/* === SOURCE: title → select spacing compact === */
#pp-frame-source .pp-frame-title {
  margin: 0 0 4px 0;    /* aún más cerca del select */
  line-height: 1.2;
}

#pp-frame-source .pp-frame-body .form-row:first-of-type {
  margin-top: 0;        /* select pegado al título */
}

#pp-frame-source select#ppSource {
  height: 1.8em;        /* ~un renglón */
  line-height: 1.8em;
  padding: 0 8px;
  margin-top: 0;        /* sin gap extra */
}

/* Reparto vertical con ~+10% por fila */
/* removed incorrect #postproc-grid.postproc-grid block */

/* Asegurar expansión de contenido sin cortar lienzos */
.postproc-row { min-height: 0; }
.postproc-main, .postproc-side { min-height: 0; }
.postproc-canvas-host { height: 100%; min-height: 0; }
.postproc-canvas-host canvas { width: 100%; height: 100%; display: block; }
/* === Postprocessing NEW scaffolding: full-height, two columns, stacked graphs === */
/* Altura completa */
html, body { height: 100%; }
#postproc-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
#postproc-header { flex: 0 0 auto; }

/* Shell de dos columnas */
#postproc-container .pp-shell {
  flex: 1 1 auto;
  min-height: 0;            /* clave para permitir que el grid interno calcule bien */
  display: grid;
  grid-template-columns: 320px 1fr;  /* sidebar + main */
  gap: 12px;
  padding: 8px 12px;
  box-sizing: border-box;
}

/* Sidebar izquierda */
.pp-sidebar {
  display: grid;
  grid-auto-rows: min-content;
  gap: 12px;
  overflow: auto;           /* si el alto no alcanza, sidebar scrollea */
  min-height: 0;
  padding: 8px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 10px;
}

/* Bloques dentro del sidebar */
.pp-block { display: grid; gap: 8px; }
.pp-block-title { font-size: 14px; margin: 0; opacity: .9; }
.pp-block-body { display: grid; gap: 8px; }
.form-row { display: grid; gap: 6px; }
.btn-col { display: grid; grid-auto-rows: min-content; gap: 8px; }

/* Main derecha con 3 gráficos apilados */
.pp-main {
  display: grid;
  grid-template-rows: 1fr 1fr 1fr;  /* tres gráficos de altura equivalente */
  gap: 12px;
  min-height: 0;     /* crítico para evitar que se “estire” hacia abajo */
}
.pp-graph {
  display: grid;
  grid-template-rows: auto 1fr;     /* título + canvas */
  min-height: 0;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 10px;
  padding: 6px 8px;
  box-sizing: border-box;
  overflow: hidden;                 /* los contenidos no se salen */
}
.pp-graph-title {
  margin: 0 0 4px 0;
  font-size: 13px;
  opacity: .85;
}
.pp-canvas-host {
  min-height: 0;    /* ¡clave! para que el canvas obtenga el alto correcto */
  overflow: hidden;
  display: grid;    /* permite que el canvas se estire */
}
.pp-canvas-host canvas {
  width: 100%;
  height: 100%;
  display: block;
}

/* Zoom/scroll tidy */
#pp-zoombar {
  display: grid;
  grid-template-rows: auto auto;   /* fila de zoom + fila de scroll */
  gap: 6px;
}
#pp-zoombar .pp-zoom-row {
  display: grid;
  grid-template-columns: auto 1fr auto; /* -  Zoom1×  + */
  gap: 8px;
  align-items: center;
}
#pp-zoombar #ppZoomLabel { text-align: center; min-width: 80px; }
#pp-zoombar .pp-scroll-row {
  display: grid;
  grid-template-columns: auto 1fr;      /* etiqueta Scroll + range */
  gap: 8px;
  align-items: center;
}
#pp-zoombar input[type="range"]#ppScroll { width: 100%; max-width: 100%; }

/* Responsive: en pantallas muy chicas, sidebar más angosto */
@media (max-width: 1100px) {
  #postproc-container .pp-shell { grid-template-columns: 260px 1fr; }
}
@media (max-width: 860px) {
  #postproc-container .pp-shell { grid-template-columns: 220px 1fr; }
}

/* ——— Waveform frame: compactar y evitar overflow ——— */
#pp-frame-waveform .pp-frame-body {
  gap: 8px;             /* un poco más compacto */
  overflow: hidden;      /* evita scroll interno; todo debe caber */
}

/* Bit depth en una sola línea (sin wrap) */
.btn-row-inline.no-wrap {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: nowrap;     /* fuerza un solo renglón */
  min-width: 0;
}
.btn.btn-xs {
  font-size: 12px;
  line-height: 1.2;
  padding: 3px 8px;
  border-radius: 8px;
}

/* Ajustes finos del bloque de zoom/scroll para ganar espacio */
#pp-zoombar { gap: 6px; }
#pp-zoombar .pp-zoom-row {
  display: grid;
  grid-template-columns: auto 1fr auto; /* - Zoom1× + */
  gap: 8px;
  align-items: center;
  min-height: 0;
}
#ppZoomLabel { text-align: center; min-width: 72px; } /* un pelín más chico */
#pp-zoombar .pp-scroll-row {
  display: grid;
  grid-template-columns: auto 1fr;     /* label + range */
  gap: 6px;
  align-items: center;
  min-height: 0;
}
#ppScroll {
  width: 100%;
  max-width: 100%;
  min-width: 0;
}

/* Sidebar en tercios: aseguramos que cada frame no introduzca barras por paddings excesivos */
.pp-sidebar {
  grid-template-rows: minmax(0,1fr) minmax(0,1fr) minmax(0,1fr);
  overflow: hidden;          /* scroll dentro del frame, no en la columna */
}
.pp-frame {
  grid-template-rows: auto minmax(0,1fr);
  overflow: hidden;          /* el body controla el overflow */
}
.pp-frame-body { min-height: 0; }
/* === Postprocessing viewport-tight layout overrides === */
#postproc-container {
  position: fixed;       /* ocupar pantalla completa bajo header */
  inset: 0;
  display: flex;
  flex-direction: column;
  height: 100dvh;        /* altura exacta del viewport moderno */
  min-height: 100dvh;
  overflow: hidden;      /* evita crecimiento vertical */
  padding: 0;
}

#postproc-header {
  flex: 0 0 auto;
}

#postproc-container .pp-shell {
  flex: 1 1 auto;
  min-height: 0;         /* no fuerza crecimiento */
  height: 100%;
  display: grid;
  grid-template-columns: 320px 1fr;  /* sidebar + main */
  gap: 12px;
  padding: 8px 12px;
  box-sizing: border-box;
  overflow: hidden;      /* corta desbordes en el shell */
}

.pp-sidebar {
  overflow: auto;        /* scrollea si no alcanza el alto */
  min-height: 0;
}

.pp-main {
  display: grid;
  grid-template-rows: 1fr 1fr 1fr;  /* tres gráficos apilados */
  gap: 12px;
  min-height: 0;
  overflow: hidden;      /* evita empuje hacia abajo */
}

.pp-graph {
  display: grid;
  grid-template-rows: auto 1fr;     /* título + canvas */
  min-height: 0;
  overflow: hidden;
  /* Borde y radio iguales a la pantalla principal */
  background: var(--card);
  border: 1px solid var(--axis);
  border-radius: 12px;
  padding: 6px 8px;
  box-sizing: border-box;
}

/* Host y canvas: ocupar todo el alto disponible sin forzar layout */
.pp-canvas-host { min-height: 0; overflow: hidden; display: grid; }
.pp-canvas-host canvas { width: 100%; height: 100%; display: block; }

/* Responsive: conserva lo existente */
@media (max-width: 1100px) {
  #postproc-container .pp-shell { grid-template-columns: 260px 1fr; }
}
@media (max-width: 860px) {
  #postproc-container .pp-shell { grid-template-columns: 220px 1fr; }
}
/* === Postprocessing overrides: header-aware height and robust stacked graphs === */
#postproc-container {
  --pp-header-h: 0px; /* valor por defecto; JS puede actualizarlo en runtime */
}

#postproc-container .pp-shell {
  height: calc(100dvh - var(--pp-header-h, 0px));
  flex: 0 0 auto;         /* gobierna la fórmula anterior */
  min-height: 0;
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 12px;
  padding: 8px 12px;
  box-sizing: border-box;
  overflow: hidden;
}

.pp-main {
  display: grid;
  grid-template-rows: minmax(0,1fr) minmax(0,1fr) minmax(0,1fr);
  gap: 12px;
  min-height: 0;
  overflow: hidden;
}

.pp-graph {
  display: grid;
  grid-template-rows: auto minmax(0,1fr); /* título + canvas comprimible */
  min-height: 0;
  overflow: hidden;
  background: var(--card);
  border: 1px solid var(--axis);
  border-radius: 12px;
  padding: 6px 8px;
  box-sizing: border-box;
}

.pp-canvas-host { min-height: 0; overflow: hidden; display: grid; }
.pp-canvas-host canvas { width: 100%; height: 100%; display: block; }

@media (max-width: 1100px) {
  #postproc-container .pp-shell { grid-template-columns: 260px 1fr; }
}
@media (max-width: 860px) {
  #postproc-container .pp-shell { grid-template-columns: 220px 1fr; }
}

/* === Frames (sidebar) === */
.pp-sidebar {
  display: grid;
  grid-auto-rows: min-content;
  gap: 12px;
  overflow: auto;
  min-height: 0;
  padding: 8px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 10px;
  background: var(--panel, transparent);
}
.pp-frame {
  display: grid;
  grid-template-rows: auto 1fr;
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--axis);
  border-radius: 10px;
  background: var(--card);
  box-sizing: border-box;
}
.pp-frame-title {
  margin: 0;
  font-size: 14px;
  font-weight: 600;
  opacity: .9;
}
.pp-frame-body {
  display: grid;
  gap: 10px;
  min-height: 0;
}

/* Formularios compactos */
.form-row { display: grid; gap: 6px; }
.btn-row-inline { display: grid; grid-auto-flow: column; gap: 8px; align-items: center; justify-content: start; }

/* Botones XS para bit depth y zoom */
.btn.btn-xs {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 8px;
  line-height: 1.2;
}

/* Zoom / Scroll tidy (dos filas: zoom arriba, scroll abajo) */
#pp-zoombar { display: grid; grid-template-rows: auto auto; gap: 6px; }
#pp-zoombar .pp-zoom-row {
  display: grid;
  grid-template-columns: auto 1fr auto; /* - Zoom1× + */
  gap: 8px;
  align-items: center;
}
#ppZoomLabel { text-align: center; min-width: 80px; }
#pp-zoombar .pp-scroll-row {
  display: grid;
  grid-template-columns: auto 1fr; /* label + range */
  gap: 8px;
  align-items: center;
}
#ppScroll { width: 100%; max-width: 100%; }

/* Main (tres gráficos) se mantiene como estaba (minmax(0,1fr) x3) */
.pp-main { grid-template-rows: minmax(0,1fr) minmax(0,1fr) minmax(0,1fr); }

/* === Sidebar en 3 tercios (igual que la derecha) === */
.pp-sidebar {
  display: grid !important;
  grid-template-rows: minmax(0,1fr) minmax(0,1fr) minmax(0,1fr);
  gap: 12px;
  overflow: hidden;     /* el scroll queda dentro de cada frame */
  min-height: 0;
  padding: 8px;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 10px;
  background: var(--panel, transparent);
  box-sizing: border-box;
}

.pp-frame {
  display: grid;
  grid-template-rows: auto minmax(0,1fr);
  gap: 8px;
  padding: 8px;
  border: 1px solid var(--axis);
  border-radius: 10px;
  background: var(--card);
  box-sizing: border-box;
  overflow: hidden;    /* el body controla el scroll */
}
.pp-frame-body {
  display: grid;
  gap: 10px;
  min-height: 0;
  overflow: auto;      /* si se llena, scrollea dentro del frame */
}

/* Formularios compactos */
.form-row { display: grid; gap: 6px; }

/* Bit depth en una línea, botones pequeños */
.btn-row-inline { display: grid; grid-auto-flow: column; gap: 8px; align-items: center; justify-content: start; }
.btn.btn-xs {
  font-size: 12px;
  padding: 3px 8px;
  border-radius: 8px;
  line-height: 1.2;
}

/* Zoom / Scroll tidy (dos filas: zoom arriba, scroll abajo) */
#pp-zoombar { display: grid; grid-template-rows: auto auto; gap: 6px; }
#pp-zoombar .pp-zoom-row {
  display: grid;
  grid-template-columns: auto 1fr auto; /* -  Zoom1×  + */
  gap: 8px;
  align-items: center;
}
#ppZoomLabel { text-align: center; min-width: 80px; }
#pp-zoombar .pp-scroll-row {
  display: grid;
  grid-template-columns: auto 1fr; /* label + range */
  gap: 8px;
  align-items: center;
}
#ppScroll { width: 100%; max-width: 100%; }

/* Línea informativa de Fmax */
#ppMixerFmaxInfo {
  font-size: 12px;
  opacity: .85;
  padding: 6px 8px;
  background: color-mix(in oklab, var(--card) 80%, transparent);
  border: 1px dashed var(--axis);
  border-radius: 8px;
}

/* La columna derecha se mantiene con tercios robustos */
.pp-main { grid-template-rows: minmax(0,1fr) minmax(0,1fr) minmax(0,1fr); }
.pp-graph { grid-template-rows: auto minmax(0,1fr); }
.pp-canvas-host { min-height: 0; overflow: hidden; display: grid; }
.pp-canvas-host canvas { width: 100%; height: 100%; display: block; }

/* === Postprocessing dropdown sizes & spacing (single-line, tight to title) === */
.pp-frame .pp-frame-title {
  margin: 0 0 6px 0;
  line-height: 1.2;
}
.pp-frame .pp-frame-body {
  margin-top: 0;
}
.pp-frame .form-row {
  margin: 4px 0;
}
.pp-frame .form-row > label {
  display: block;
  font-size: 12px;
  margin-bottom: 2px;
}
.pp-frame .form-row select {
  height: 1.9em;
  line-height: 1.9em;
  padding: 0 8px;
}
#pp-frame-source .form-row:first-of-type,
#pp-frame-spectrum .form-row:first-of-type {
  margin-top: 0;
}

/* === SOURCE: title → select spacing compact === */
#pp-frame-source .pp-frame-title {
  margin: 0 0 4px 0;    /* aún más cerca del select */
  line-height: 1.2;
}

#pp-frame-source .pp-frame-body .form-row:first-of-type {
  margin-top: 0;        /* select pegado al título */
}

#pp-frame-source select#ppSource {
  height: 1.8em;        /* ~un renglón */
  line-height: 1.8em;
  padding: 0 8px;
  margin-top: 0;        /* sin gap extra */
}
/* === WAVEFORM PANEL: ultra-compact layout === */
#pp-frame-waveform .pp-frame-title {
  margin: 0 0 3px 0;
  line-height: 1.15;
  font-size: 13px;
}

#pp-frame-waveform .pp-frame-body {
  margin-top: 0;
}

#pp-frame-waveform .form-row {
  margin: 2px 0;            /* menos espacio entre filas */
}

#pp-frame-waveform .form-row > label {
  margin: 0 6px 0 0;
  font-size: 12px;
  line-height: 1.2;
  white-space: nowrap;
}

#pp-frame-waveform #pp-bitdepth-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 2px 0 4px 0;      /* aún más compacto que antes */
}

#pp-frame-waveform #pp-bitdepth-row .btn-row-inline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

#pp-frame-waveform #pp-bitdepth-row .btn.btn-xs {
  padding: 1px 6px;         /* botones más chiquitos */
  line-height: 1.2;
  height: auto;
  font-size: 12px;
}

/* "Show original waveform" más pegado */
#pp-frame-waveform #pp-show-original-row {
  margin: 2px 0;
}
#pp-frame-waveform #pp-show-original-row label {
  font-size: 12px;
  line-height: 1.2;
}

/* Controles de vista (zoom/scroll) súper compactos */
#pp-frame-waveform .pp-view-controls {
  margin-top: 4px;
}
#pp-frame-waveform .pp-view-controls .pp-zoom-row,
#pp-frame-waveform .pp-view-controls .pp-scroll-row {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 2px 0;
}
#pp-frame-waveform .pp-view-controls .btn,
#pp-frame-waveform .pp-view-controls .btn.btn-xs {
  padding: 2px 6px;
  line-height: 1.2;
  font-size: 12px;
}

/* Por si hay sliders: bajamos alto */
#pp-frame-waveform input[type="range"] {
  height: 18px;
  margin: 0;
}

/* Evitar que crezca por padding internos */
#pp-frame-waveform .pp-canvas-host,
#pp-frame-waveform .pp-canvas-host * {
  box-sizing: border-box;
}
/* === WAVEFORM PANEL: prevent clipping === */
#pp-frame-waveform .pp-frame-body {
  overflow: visible;           /* preferimos que el contenido se vea, no se corte */
}

@media (max-height: 700px) {
  /* En alturas muy bajas, permitir scroll fino dentro del panel */
  #pp-frame-waveform .pp-frame-body {
    max-height: calc(100vh - 220px); /* ajusta si hace falta */
    overflow-y: auto;
    overscroll-behavior: contain;
  }
}
/* === Postproc dropdown width control (no auto-grow when closed) === */
#pp-frame-waveform select#postproc-resample-set,
#pp-frame-spectrum  select#postproc-spectrum-set {
  width: 100%;
  max-width: 100%;
  height: 1.9em;
  line-height: 1.9em;
  padding: 0 8px;
  white-space: nowrap;    /* no wrap */
  overflow: hidden;       /* clip overflow (select won’t ellipsis but won’t grow) */
  text-overflow: clip;    /* explicit (most browsers ignore on <select>, harmless) */
}
/* === 7.3.2: Hide zoom/scroll UI ONLY in the Waveform resampling param block === */
/* Mantiene el zoom/drag con el mouse en el canvas, solo oculta la UI */
#pp-frame-waveform #pp-zoombar,
#pp-frame-waveform .pp-view-controls,
#pp-frame-waveform #ppZoomLabel,
#pp-frame-waveform #ppScroll,
#pp-frame-waveform #ppZoomIn,
#pp-frame-waveform #ppZoomOut,
#pp-frame-waveform #ppScrollLeft,
#pp-frame-waveform #ppScrollRight,
#pp-frame-waveform #ppZoomInfo {
  display: none !important;
}
/* === 7.3.2: hide the "View" title in the Waveform resampling block === */
#pp-frame-waveform .pp-view-title,
#pp-frame-waveform label[for="pp-zoombar"],
#pp-frame-waveform .pp-view-controls .section-title,
/* Fallback: hide label in the same row where zoom UI lives */
#pp-frame-waveform .form-row:has(#pp-zoombar) > label,
#pp-frame-waveform .form-row:has(.pp-view-controls) > label {
  display: none !important;
}
/* v7.3.2: force native checkbox look for the dB control */
#ppSpecDb {
  -webkit-appearance: checkbox !important;
  appearance: checkbox !important;
  margin: 0;
}

/* neutralize any "toggle" look that could leak via global styles */
#ppSpecDbRow label[for="ppSpecDb"] {
  font-size: 0.95rem;
  line-height: 1.1;
  opacity: 0.95;
}
/* v7.3.2: dB checkbox snug under Log X within Spectrum panel */
#pp-frame-spectrum #ppSpecDbRow {
  margin-top: 4px !important;
}

#pp-frame-spectrum input#ppSpecLogX {
  /* reduce bottom spacing of the Log X row if any global margins exist */
  margin-bottom: 0 !important;
}
/* v7.3.2: extra bottom breathing room in Spectrum params */
#pp-frame-spectrum .pp-frame-body {
  padding-bottom: 10px;              /* add inner bottom padding */
}

/* ensure the last row inside the body keeps a small gap from the border */
#pp-frame-spectrum .pp-frame-body .form-row:last-child {
  margin-bottom: 6px;
}

/* specific tweak for the dB row spacing (keeps it snug under Log X, but with bottom air) */
#pp-frame-spectrum #ppSpecDbRow {
  margin-top: 4px;                   /* snug under Log X */
  margin-bottom: 6px;                /* small gap above the frame bottom */
}

/* v7.3.2: compact rows for Log X and dB in Spectrum params */
#pp-frame-spectrum .pp-frame-body .form-row {
  /* keep default rows as-is; we'll override only the two rows below */
}

#pp-frame-spectrum #pp-spec-logx-row,
#pp-frame-spectrum #ppSpecDbRow {
  margin-top: 4px !important;
  margin-bottom: 4px !important;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  min-height: 0 !important;
}

/* Make the label/content inside those rows align tight and centered vertically */
#pp-frame-spectrum #pp-spec-logx-row > label,
#pp-frame-spectrum #ppSpecDbRow > label {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  padding: 0 !important;
  margin: 0 !important;
  line-height: 1.1 !important;
}

/* Ensure the checkbox itself doesn't add extra vertical space */
#pp-frame-spectrum #pp-spec-logx-row input[type="checkbox"],
#pp-frame-spectrum #ppSpecDbRow input[type="checkbox"] {
  margin: 0 !important;
  vertical-align: middle !important;
}

/* If a global rule sets a big line-height on .form-row's text, neutralize it locally */
#pp-frame-spectrum #pp-spec-logx-row,
#pp-frame-spectrum #ppSpecDbRow {
  line-height: 1.2 !important;
}

/* v7.3.2 — Compactar filas "Log X" y "dB" en Spectrum */
#pp-frame-spectrum .pp-frame-body {
  /* que las filas de grid tomen solo el alto de su contenido */
  grid-auto-rows: min-content !important;
  gap: 6px !important; /* un poco menos de separación vertical entre filas */
}

/* Hacer ambas filas ultra-compactas */
#pp-frame-spectrum #pp-spec-logx-row,
#pp-frame-spectrum #ppSpecDbRow {
  display: flex !important;
  align-items: center !important;
  gap: 8px !important;

  margin: 2px 0 !important;
  padding: 0 !important;

  height: auto !important;
  min-height: 0 !important;
  line-height: 1.2 !important;
}

/* Compactar el contenido interno (label + checkbox) */
#pp-frame-spectrum #pp-spec-logx-row > label,
#pp-frame-spectrum #ppSpecDbRow > label {
  display: inline-flex !important;
  align-items: center !important;
  gap: 8px !important;
  margin: 0 !important;
  padding: 0 !important;
  line-height: 1.2 !important;
}

/* El checkbox sin márgenes extra */
#pp-frame-spectrum #pp-spec-logx-row input[type="checkbox"],
#pp-frame-spectrum #ppSpecDbRow input[type="checkbox"] {
  margin: 0 !important;
  vertical-align: middle !important;
}

/* Un poco de aire inferior en el panel para que no quede pegado al borde */
#pp-frame-spectrum .pp-frame-body {
  padding-bottom: 12px !important;
}

/* v7.3.2 · New WF two-column row (visual only) */
#pp-frame-waveform .pp-wf-newgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: start;
  margin-bottom: 8px;
}

#pp-frame-waveform .pp-wf-cell {
  min-width: 0;
}

#pp-frame-waveform .pp-wf-title {
  display: block;
  line-height: 1.2;
  margin-bottom: 4px;
}

#pp-frame-waveform .pp-wf-select {
  width: 100%;
  max-width: 100%;
}

/* Responsive: una columna si el panel queda angosto */
@media (max-width: 640px) {
  #pp-frame-waveform .pp-wf-newgrid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}
/* v7.3.2 · New SPEC two-column row (visual only) */
#pp-frame-spectrum .pp-spec-newgrid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  align-items: start;
  margin-bottom: 8px;
}

#pp-frame-spectrum .pp-spec-cell {
  min-width: 0;
}

#pp-frame-spectrum .pp-spec-title {
  display: block;
  line-height: 1;
  margin-bottom: 4px;
}

#pp-frame-spectrum .pp-spec-select {
  width: 100%;
  max-width: 100%;
}

/* Responsive: una columna si el panel queda angosto */
@media (max-width: 640px) {
  #pp-frame-spectrum .pp-spec-newgrid {
    grid-template-columns: 1fr;
    gap: 10px;
  }
}

#pp-wf-fr-box,
#pp-spec-fr-box {
  font: 12px ui-monospace, Consolas, monospace;
  margin-right: 16px;
}

.pp-fr-readout {
  font: 12px ui-monospace, Consolas, monospace;
  padding: 2px 0;
  display: block;
}

#pp-spec-fr-row,
#pp-wf-fr-row {
  margin-bottom: 6px;
}

#pp-spec-fr-box,
#pp-wf-fr-box {
  font: 12px ui-monospace, Consolas, monospace;
  padding: 0;
}

section#pp-frame-spectrum > .pp-frame-body {
  max-height: none;
  height: auto;
  overflow-y: visible;
}