/* =============================================================================
   FieldAudio Playground — fieldaudio_playground.css
   Follows FildraAI Design System v2.3
   Accent: --fa-accent (var(--product-fieldkb-accent) emerald) | Surface: var(--surface-1)
   ============================================================================= */

/* ── CSS variables ────────────────────────────────────────────────────────── */
:root {
  --fa-accent:        var(--product-fieldkb-accent);
  --fa-accent-glow:   color-mix(in srgb, var(--color-primary-light) 18%, transparent);
  --fa-accent-dark:   var(--color-primary-dark);
  --fa-blue:          var(--product-fieldvision-accent);
  --fa-red:           var(--color-error);
  --fa-surface:       var(--surface-3);
  --fa-surface-raised:color-mix(in srgb, var(--surface-0) 88%, transparent);
  --fa-border:        var(--glass-border);
  --fa-border-accent: color-mix(in srgb, var(--color-primary-light) 35%, transparent);
  --fa-text:          #e5e7eb;
  --fa-text-muted:    var(--text-muted);
  --fa-text-dim:      var(--text-muted);
  --fa-radius:        .85rem;
  --fa-radius-sm:     .5rem;
  --fa-shadow:        0 4px 24px color-mix(in srgb, var(--surface-0) 35%, transparent);
  --fa-transition:    200ms ease;
}

/* Light-mode --fa-* overrides live in app/views/static/css/light-mode.css
   (Round 6 consolidation). Single source of truth for the unified palette. */

/* ── Atmosphere layer ─────────────────────────────────────────────────────── */
.fa-atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 60% 50% at 5%  10%, color-mix(in srgb, var(--color-primary-light) 14%, transparent) 0%, transparent 55%),
    radial-gradient(ellipse 50% 40% at 95% 90%, color-mix(in srgb, var(--color-info) 10%, transparent) 0%, transparent 55%);
  pointer-events: none;
}

/* ── Collapsible intro ────────────────────────────────────────────────────── */
.fa-tool-intro {
  max-height: 0;
  overflow: hidden;
  transition: max-height 420ms ease;
}

.fa-intro-inner {
  padding: 2rem 1.5rem 2.5rem;
  max-width: 960px;
  margin: 0 auto;
}

.fa-intro-pill {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .3rem .9rem;
  border-radius: 99px;
  border: 1px solid var(--fa-border-accent);
  background: var(--fa-accent-glow);
  color: var(--fa-accent);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .04em;
  text-transform: uppercase;
  margin-bottom: 1.25rem;
}

.fa-intro-title {
  font-family: 'Space Grotesk', sans-serif;
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--fa-text);
  margin-bottom: .75rem;
  letter-spacing: -.02em;
}

.fa-intro-subtitle {
  color: var(--fa-text-muted);
  font-size: .975rem;
  line-height: 1.7;
  max-width: 680px;
  margin-bottom: 2rem;
}

.fa-intro-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.fa-intro-card {
  display: flex;
  flex-direction: column;
  gap: .45rem;
  padding: 1.1rem 1.2rem;
  border-radius: var(--fa-radius-sm);
  border: 1px solid var(--fa-border);
  background: var(--fa-surface-raised);
  color: var(--fa-text-muted);
  font-size: .875rem;
  line-height: 1.55;
}

.fa-intro-card i {
  color: var(--fa-accent);
}

.fa-intro-card strong {
  display: block;
  color: var(--fa-text);
  font-weight: 600;
  font-size: .9rem;
}

/* ── Intro screenshots ────────────────────────────────────────────────────── */
.fa-intro-screenshots {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
  margin-top: 2rem;
}

@media (max-width: 720px) {
  .fa-intro-screenshots {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }
}

.fa-intro-shot {
  display: flex;
  flex-direction: column;
  gap: .75rem;
  margin: 0;
}

.fa-intro-shot-frame {
  position: relative;
  border-radius: 1.25rem;
  border: 1px solid var(--fa-border);
  background: var(--fa-surface-raised);
  padding: .55rem;
  box-shadow: var(--fa-shadow);
  overflow: hidden;
}

.fa-intro-shot-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  border: 1px solid var(--fa-border-accent);
  opacity: .35;
}

.fa-intro-shot-frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: .85rem;
  background: var(--surface-0);
}

.fa-intro-shot figcaption {
  color: var(--fa-text-muted);
  font-size: .82rem;
  line-height: 1.55;
  padding: 0 .15rem;
}

/* ── Main playground layout ───────────────────────────────────────────────── */
.fa-playground-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  max-width: 1160px;
  margin: 1.25rem auto 0;
  padding: 0 1.25rem 2rem;
}

@media (max-width: 768px) {
  .fa-playground-wrap {
    grid-template-columns: 1fr;
  }
}

/* ── Panel ────────────────────────────────────────────────────────────────── */
.fa-panel {
  background: var(--fa-surface);
  border: 1px solid var(--fa-border);
  border-radius: var(--fa-radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  box-shadow: var(--fa-shadow);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  min-height: 0;
}

.fa-panel-output {
  max-height: min(760px, 78vh);
  overflow: hidden;
}

.fa-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .75rem;
  flex-wrap: wrap;
}

.fa-panel-label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--fa-text-dim);
}

.fa-badges {
  display: flex;
  gap: .4rem;
  flex-wrap: wrap;
}

.fa-badge {
  display: inline-flex;
  align-items: center;
  padding: .2rem .55rem;
  border-radius: 99px;
  border: 1px solid var(--fa-border-accent);
  background: var(--fa-accent-glow);
  color: var(--fa-accent);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .03em;
}

/* ── Input/output controls ───────────────────────────────────────────────── */
.fa-control-group,
.fa-field-label,
.fa-text-input-wrap,
.fa-audio-input-wrap {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.fa-control-label,
.fa-field-label > span {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--fa-text-dim);
}

.fa-field-label-row {
  display: inline-flex !important;
  align-items: center;
  gap: .55rem;
  flex-wrap: wrap;
}

.fa-tts-badge {
  font-family: 'IBM Plex Mono', monospace;
  font-size: .58rem !important;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--product-fieldkb-accent) !important;
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--color-primary) 35%, transparent);
  border-radius: 999px;
  padding: .15rem .55rem;
  white-space: nowrap;
}

.fa-tts-badge[hidden] {
  display: none !important;
}

.fa-control-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: .8rem;
}

@media (max-width: 900px) {
  .fa-control-grid {
    grid-template-columns: 1fr;
  }
}

.fa-segmented {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: .35rem;
  padding: .25rem;
  border-radius: var(--fa-radius-sm);
  border: 1px solid var(--fa-border);
  background: color-mix(in srgb, var(--surface-0) 35%, transparent);
}

.fa-segment {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .45rem;
  min-height: 40px;
  padding: .45rem .65rem;
  border-radius: calc(var(--fa-radius-sm) - .18rem);
  border: 1px solid transparent;
  background: transparent;
  color: var(--fa-text-muted);
  font-size: .82rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--fa-transition);
}

.fa-segment:hover {
  color: var(--fa-text);
  background: color-mix(in srgb, var(--text-muted) 8%, transparent);
}

.fa-segment.active {
  color: var(--fa-accent);
  border-color: var(--fa-border-accent);
  background: var(--fa-accent-glow);
}

.fa-select,
.fa-textarea {
  width: 100%;
  border-radius: var(--fa-radius-sm);
  border: 1px solid var(--fa-border);
  background: color-mix(in srgb, var(--surface-0) 45%, transparent);
  color: var(--fa-text);
  font: inherit;
  outline: none;
  transition: border-color var(--fa-transition), box-shadow var(--fa-transition);
}

.fa-select {
  min-height: 45px;
  padding: .55rem .75rem;
}

.fa-textarea {
  resize: vertical;
  min-height: 118px;
  max-height: 220px;
  padding: .75rem;
  line-height: 1.55;
  overflow-y: auto;
  caret-color: var(--fa-accent);
}

.fa-select:focus,
.fa-textarea:focus {
  border-color: var(--fa-border-accent);
  box-shadow: 0 0 0 2px var(--fa-accent-glow);
}

.fa-textarea::placeholder {
  color: var(--fa-text-dim);
}

/* ── Visualiser ───────────────────────────────────────────────────────────── */
.fa-visualiser-wrap {
  position: relative;
  border-radius: var(--fa-radius-sm);
  border: 1px solid var(--fa-border);
  background: color-mix(in srgb, var(--surface-0) 60%, transparent);
  overflow: hidden;
  height: 90px;
}

.fa-visualiser {
  display: block;
  width: 100%;
  height: 100%;
}

.fa-visualiser-idle {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  color: var(--fa-text-dim);
  font-size: .875rem;
  pointer-events: none;
}

.fa-visualiser-idle i {
  color: var(--fa-accent);
  opacity: .5;
}

/* ── Timer row ────────────────────────────────────────────────────────────── */
.fa-timer-row {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: .82rem;
  color: var(--fa-text-muted);
}

.fa-timer-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--fa-text-dim);
  flex-shrink: 0;
  transition: background var(--fa-transition);
}

.fa-timer-dot.fa-recording {
  background: var(--color-error);
  animation: fa-blink 1s steps(1) infinite;
}

@keyframes fa-blink {
  50% { opacity: 0; }
}

.fa-timer-label {
  font-weight: 600;
  color: var(--fa-text);
  min-width: 3.5rem;
}

.fa-timer-limit {
  color: var(--fa-text-dim);
  font-size: .75rem;
}

/* ── Record controls ──────────────────────────────────────────────────────── */
.fa-record-controls {
  display: flex;
  gap: .75rem;
}

.fa-btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .6rem 1.1rem;
  border-radius: var(--fa-radius-sm);
  border: 1px solid transparent;
  font-family: 'Space Grotesk', sans-serif;
  font-size: .875rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--fa-transition);
  white-space: nowrap;
}

.fa-btn:disabled {
  opacity: .45;
  cursor: not-allowed;
}

.fa-btn-record {
  background: color-mix(in srgb, var(--color-primary-light) 12%, transparent);
  border-color: var(--fa-border-accent);
  color: var(--fa-accent);
}

.fa-btn-record:hover:not(:disabled) {
  background: color-mix(in srgb, var(--color-primary-light) 22%, transparent);
  box-shadow: 0 0 0 2px var(--fa-accent-glow);
}

.fa-btn-record i { color: var(--color-error); }

.fa-btn-stop {
  background: var(--pill-rose-bg);
  border-color: color-mix(in srgb, var(--color-error) 30%, transparent);
  color: var(--color-error);
}

.fa-btn-stop:hover:not(:disabled) {
  background: color-mix(in srgb, var(--color-error) 20%, transparent);
}

.fa-btn-submit {
  width: 100%;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary-dark) 0%, var(--product-fieldkb-accent) 100%);
  color: var(--surface-0);
  border: none;
  padding: .75rem 1.5rem;
  font-size: .925rem;
  border-radius: var(--fa-radius-sm);
  box-shadow: 0 2px 12px color-mix(in srgb, var(--color-primary-light) 25%, transparent);
}

.fa-btn-submit:hover:not(:disabled) {
  box-shadow: 0 4px 20px color-mix(in srgb, var(--color-primary-light) 40%, transparent);
  transform: translateY(-1px);
}

/* ── Playback ─────────────────────────────────────────────────────────────── */
.fa-playback-wrap {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.fa-playback-label {
  font-size: .78rem;
  color: var(--fa-text-dim);
  font-family: 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: .07em;
  margin: 0;
}

.fa-audio-player {
  width: 100%;
  border-radius: var(--fa-radius-sm);
  accent-color: var(--fa-accent);
}

/* ── Upload section ───────────────────────────────────────────────────────── */
.fa-upload-section {
  display: flex;
  flex-direction: column;
  gap: .6rem;
}

.fa-upload-divider {
  display: flex;
  align-items: center;
  gap: .75rem;
  color: var(--fa-text-dim);
  font-size: .8rem;
}

.fa-upload-divider::before,
.fa-upload-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--fa-border);
}

.fa-upload-label {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  padding: 1rem;
  border-radius: var(--fa-radius-sm);
  border: 1px dashed var(--fa-border);
  cursor: pointer;
  color: var(--fa-text-muted);
  font-size: .875rem;
  text-align: center;
  transition: all var(--fa-transition);
}

.fa-upload-label:hover {
  border-color: var(--fa-border-accent);
  background: var(--fa-accent-glow);
  color: var(--fa-accent);
}

.fa-upload-label i {
  font-size: 1.1rem;
  color: var(--fa-accent);
}

.fa-upload-hint {
  font-size: .72rem;
  color: var(--fa-text-dim);
}

.fa-file-input-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.fa-upload-chosen {
  font-size: .8rem;
  color: var(--fa-accent);
  font-family: 'IBM Plex Mono', monospace;
  margin: 0;
  word-break: break-all;
}

/* ── Status row ───────────────────────────────────────────────────────────── */
.fa-status-row {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: .82rem;
}

.fa-status-pill {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 99px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  background: color-mix(in srgb, var(--text-muted) 12%, transparent);
  color: var(--fa-text-muted);
  border: 1px solid var(--fa-border);
}

.fa-status-idle     { background: color-mix(in srgb, var(--text-muted) 10%, transparent);  color: var(--fa-text-dim); }
.fa-status-rec      { background: color-mix(in srgb, var(--color-error) 12%, transparent); color: var(--color-error); border-color: color-mix(in srgb, var(--color-error) 30%, transparent); }
.fa-status-ready    { background: color-mix(in srgb, var(--color-primary-light) 10%, transparent);   color: var(--fa-accent);   border-color: var(--fa-border-accent); }
.fa-status-uploading{ background: color-mix(in srgb, var(--color-info) 10%, transparent);   color: var(--fa-blue);     border-color: color-mix(in srgb, var(--color-info) 30%, transparent); }
.fa-status-queued   { background: color-mix(in srgb, var(--color-warning) 10%, transparent);   color: var(--color-warning);            border-color: color-mix(in srgb, var(--color-warning) 30%, transparent); }
.fa-status-processing{ background:color-mix(in srgb, var(--color-info) 10%, transparent);   color: var(--fa-blue);     border-color: color-mix(in srgb, var(--color-info) 30%, transparent); }
.fa-status-done     { background: color-mix(in srgb, var(--color-primary-light) 12%, transparent);  color: var(--fa-accent);   border-color: var(--fa-border-accent); }
.fa-status-failed,
.fa-status-err      { background: color-mix(in srgb, var(--color-error) 12%, transparent); color: var(--color-error);            border-color: color-mix(in srgb, var(--color-error) 30%, transparent); }

.fa-status-text {
  color: var(--fa-text-muted);
}

/* ── Output panel ─────────────────────────────────────────────────────────── */
.fa-output-empty {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .9rem;
  text-align: center;
  color: var(--fa-text-dim);
  padding: 2.5rem 1rem;
}

.fa-output-empty i {
  opacity: .35;
}

.fa-output-empty p {
  font-size: .9rem;
  line-height: 1.6;
  max-width: 280px;
  margin: 0;
}

.fa-output-results {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  min-height: 0;
  overflow-y: auto;
  padding-right: .25rem;
}

.fa-result-section {
  border-radius: var(--fa-radius-sm);
  background: var(--fa-surface-raised);
  border: 1px solid var(--fa-border);
  padding: 1rem 1.1rem;
}

.fa-result-section-header {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: .7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--fa-text-dim);
  margin-bottom: .6rem;
}

.fa-result-section-header i {
  color: var(--fa-accent);
  opacity: .7;
}

.fa-transcript-text {
  font-size: .9rem;
  color: var(--fa-text);
  line-height: 1.65;
  margin: 0;
  font-style: italic;
  overflow-wrap: anywhere;
}

.fa-lang-text {
  font-size: .875rem;
  color: var(--fa-accent);
  font-family: 'IBM Plex Mono', monospace;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .05em;
  margin: 0;
}

.fa-reply-text {
  font-size: .9rem;
  color: var(--fa-text);
  line-height: 1.7;
  white-space: pre-wrap;
  max-height: 220px;
  overflow-y: auto;
  overflow-wrap: anywhere;
  padding-right: .25rem;
}

.fa-lang-chip {
  display: inline-block;
  padding: .15rem .55rem;
  border-radius: 99px;
  background: var(--fa-accent-glow);
  border: 1px solid var(--fa-border-accent);
  color: var(--fa-accent);
  font-size: .7rem;
  font-weight: 700;
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: .06em;
}

/* ── Pipeline indicator ───────────────────────────────────────────────────── */
.fa-pipeline {
  display: flex;
  align-items: center;
  gap: .25rem;
  flex-wrap: wrap;
  padding-top: .25rem;
}

.fa-pipeline-step {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
  font-size: .72rem;
  color: var(--fa-text-dim);
  font-family: 'IBM Plex Mono', monospace;
  padding: .2rem .5rem;
  border-radius: 99px;
  border: 1px solid var(--fa-border);
  transition: all var(--fa-transition);
}

.fa-pipeline-step i {
  font-size: .65rem;
}

.fa-pipe-dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--fa-text-dim);
  flex-shrink: 0;
  margin-left: .15rem;
}

.fa-pipeline-step.fa-pipe-active {
  color: var(--fa-blue);
  border-color: color-mix(in srgb, var(--color-info) 30%, transparent);
  background: color-mix(in srgb, var(--color-info) 8%, transparent);
  animation: fa-pipe-pulse 1.4s ease-in-out infinite;
}

.fa-pipeline-step.fa-pipe-active .fa-pipe-dot {
  background: var(--fa-blue);
}

.fa-pipeline-step.fa-pipe-done {
  color: var(--fa-accent);
  border-color: var(--fa-border-accent);
  background: var(--fa-accent-glow);
}

.fa-pipeline-step.fa-pipe-done .fa-pipe-dot {
  background: var(--fa-accent);
}

@keyframes fa-pipe-pulse {
  0%, 100% { opacity: 1; }
  50%       { opacity: .55; }
}

/* ── Footer notice ────────────────────────────────────────────────────────── */
.fa-footer-notice {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  max-width: 1160px;
  margin: .5rem auto 2rem;
  padding: .9rem 1.25rem;
  border-radius: var(--fa-radius-sm);
  border: 1px solid color-mix(in srgb, var(--color-warning) 25%, transparent);
  background: color-mix(in srgb, var(--color-warning) 6%, transparent);
  font-size: .82rem;
  color: var(--fa-text-muted);
  line-height: 1.55;
}

.fa-footer-notice > i {
  color: var(--color-warning);
  flex-shrink: 0;
  margin-top: .1rem;
}

.fa-footer-notice strong {
  color: var(--color-warning);
}

/* ── Mobile compact layout (≤ 639px) ─────────────────────────────────────────
   Reduces vertical spacing so the Submit button stays inside the visible
   viewport without scrolling, even on the shortest Android handsets.
   ─────────────────────────────────────────────────────────────────────────── */
@media (max-width: 639px) {
  .fa-panel {
    padding: 0.9rem 1rem;
    gap: 0.65rem;
  }

  .fa-control-grid {
    grid-template-columns: 1fr;
  }

  .fa-segment {
    min-height: 44px;
  }

  .fa-visualiser-wrap {
    height: 56px;               /* down from 90px */
  }

  .fa-timer-row {
    margin: 0;
  }

  .fa-controls-row {
    gap: 0.5rem;
  }

  .fa-pipeline {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    width: 100%;
  }

  .fa-pipeline-step {
    flex: 1 1 auto;
    min-width: 0;
  }
}