/* ============================================================
   app.css — AudioToTranscript
   Clean, accessible, minimal single-column layout.
   ============================================================ */

/* ── Reset & base ─────────────────────────────────────────── */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-bg:        #f8f9fa;
  --color-surface:   #ffffff;
  --color-border:    #dee2e6;
  --color-primary:   #0d6efd;
  --color-primary-h: #0b5ed7;
  --color-text:      #212529;
  --color-text-muted:#6c757d;
  --color-error:     #dc3545;
  --color-success:   #198754;
  --color-warning:   #ffc107;

  --radius:   8px;
  --radius-sm:4px;
  --shadow:   0 1px 3px rgba(0,0,0,.1);
  --gap:      1rem;
}

body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 1rem;
  line-height: 1.5;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
}

/* ── Layout ───────────────────────────────────────────────── */
header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: .75rem 1.5rem;
  display: flex;
  align-items: center;
  gap: .75rem;
}

header h1 {
  text-align: center;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
}

.badge--local {
  font-size: .7rem;
  font-weight: 600;
  background: #e7f5ea;
  color: #146c2e;
  border: 1px solid #a3d9a5;
  border-radius: 999px;
  padding: .1rem .5rem;
  letter-spacing: .02em;
}

main {
  max-width: 740px;
  margin: 2rem auto;
  padding: 0 1rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

/* ── Cards / sections ─────────────────────────────────────── */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  box-shadow: var(--shadow);
}

.card__title {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .07em;
  color: var(--color-text-muted);
  margin-bottom: .75rem;
}

/* ── File upload ──────────────────────────────────────────── */
.upload-zone {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 2rem 1rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}

.upload-zone:hover,
.upload-zone:focus-within {
  border-color: var(--color-primary);
  background: #f0f7ff;
}

.upload-zone input[type="file"] {
  display: none;
}

.upload-zone__label {
  display: inline-block;
  cursor: pointer;
  font-size: .95rem;
  color: var(--color-text-muted);
}

.upload-zone__btn {
  display: inline-block;
  margin-top: .5rem;
  padding: .45rem 1.1rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-sm);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s;
}

.upload-zone__btn:hover {
  background: var(--color-primary-h);
}

.file-info {
  margin-top: .5rem;
  font-size: .85rem;
  color: var(--color-text-muted);
  text-align: center;
}

/* ── Model list ───────────────────────────────────────────── */
#model-list {
  display: flex;
  flex-direction: column;
  gap: .5rem;
}

.model-card {
  display: flex;
  align-items: center;
  gap: .75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  user-select: none;
}

.model-card:hover {
  border-color: var(--color-primary);
  background: #f0f7ff;
}

.model-card--selected {
  border-color: var(--color-primary);
  background: #f0f7ff;
}

.model-card input[type="radio"] {
  accent-color: var(--color-primary);
  flex-shrink: 0;
  width: 1rem;
  height: 1rem;
}

.model-card__info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: .1rem;
}

.model-card__name {
  font-weight: 600;
  font-size: .95rem;
}

.model-card__desc {
  font-size: .8rem;
  color: var(--color-text-muted);
}

.model-card__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .25rem;
  flex-shrink: 0;
}

.model-card__size {
  font-size: .8rem;
  color: var(--color-text-muted);
}

/* ── Badges ───────────────────────────────────────────────── */
.badge {
  font-size: .7rem;
  font-weight: 600;
  border-radius: 999px;
  padding: .1rem .5rem;
  white-space: nowrap;
}

.badge--cached {
  background: #e7f5ea;
  color: #146c2e;
  border: 1px solid #a3d9a5;
}

.badge--ready {
  background: #d1e7fd;
  color: #0a4fa5;
  border: 1px solid #90c4f9;
}

.badge--loading {
  background: #fff3cd;
  color: #856404;
  border: 1px solid #ffd04b;
  animation: pulse 1.4s ease-in-out infinite;
}

.badge--undownloaded {
  background: #f8f9fa;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

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

/* ── Options panel ────────────────────────────────────────── */
details.options-panel {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

details.options-panel summary {
  padding: .65rem 1rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  gap: .4rem;
  user-select: none;
}

details.options-panel summary::before {
  content: '▶';
  font-size: .7rem;
  transition: transform .2s;
  display: inline-block;
}

details[open].options-panel summary::before {
  transform: rotate(90deg);
}

.options-body {
  padding: 1rem;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: .9rem;
}

.option-row {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-wrap: wrap;
}

.option-row label {
  font-size: .9rem;
  min-width: 130px;
  font-weight: 500;
  color: var(--color-text);
}

.option-row select,
.option-row input[type="radio"] {
  accent-color: var(--color-primary);
}

.option-row select {
  padding: .3rem .6rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  background: var(--color-bg);
  color: var(--color-text);
}

.option-row .radio-group {
  display: flex;
  gap: 1rem;
}

.option-row .radio-group label {
  display: flex;
  align-items: center;
  gap: .3rem;
  min-width: unset;
  font-weight: 400;
  cursor: pointer;
}

.option-row .checkbox-label {
  display: flex;
  align-items: center;
  gap: .4rem;
  min-width: unset;
  font-weight: 400;
  cursor: pointer;
}

.option-row input[type="checkbox"] {
  accent-color: var(--color-primary);
  width: 1rem;
  height: 1rem;
}

/* ── Action row ───────────────────────────────────────────── */
.action-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

button {
  padding: .55rem 1.4rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background .15s, opacity .15s;
}

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

#transcribe-btn {
  background: var(--color-primary);
  color: #fff;
}

#transcribe-btn:hover:not(:disabled) {
  background: var(--color-primary-h);
}

/* ── Status & progress ────────────────────────────────────── */
.status-area {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

#status-text {
  font-size: .9rem;
  color: var(--color-text-muted);
  font-style: italic;
}

progress#progress-bar {
  width: 100%;
  height: 6px;
  border-radius: 999px;
  appearance: none;
  -webkit-appearance: none;
  overflow: hidden;
  background: var(--color-border);
}

progress#progress-bar::-webkit-progress-bar {
  background: var(--color-border);
  border-radius: 999px;
}

progress#progress-bar::-webkit-progress-value {
  background: var(--color-primary);
  border-radius: 999px;
  transition: width .3s;
}

progress#progress-bar::-moz-progress-bar {
  background: var(--color-primary);
  border-radius: 999px;
}

/* ── Transcript ───────────────────────────────────────────── */
#transcript {
  width: 100%;
  min-height: 200px;
  max-height: 420px;
  resize: vertical;
  padding: .75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: .95rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

#transcript:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ── Copy button ──────────────────────────────────────────── */
#copy-btn {
  background: var(--color-surface);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

#copy-btn:hover:not(:disabled) {
  background: #f0f7ff;
}

#copy-btn.success {
  background: #e7f5ea;
  color: var(--color-success);
  border-color: var(--color-success);
}

#copy-btn.failure {
  background: #fdf0f0;
  color: var(--color-error);
  border-color: var(--color-error);
}

/* ── Card warning indicator ───────────────────────────────── */
.card__warning {
  color: var(--color-warning);
  font-size: .85rem;
  margin-left: .3rem;
  vertical-align: middle;
}

.card__warning[hidden] {
  display: none;
}

/* Space between adjacent expandable panels inside a card */
.options-panel + .options-panel {
  margin-top: .5rem;
}

/* ── Error messages ───────────────────────────────────────── */
.error-msg {
  color: var(--color-error);
  font-size: .85rem;
  margin-top: .35rem;
  display: flex;
  align-items: flex-start;
  gap: .3rem;
}

.error-msg::before {
  content: '⚠';
}

.error-msg--no-icon::before {
  content: none;
}

/* ── Focus styles ─────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 500px) {
  .model-card {
    flex-wrap: wrap;
  }

  .model-card__meta {
    flex-direction: row;
    align-items: center;
    width: 100%;
    justify-content: flex-end;
  }

  .action-row {
    flex-direction: column;
    align-items: stretch;
  }

  button {
    width: 100%;
  }
}