/* Kindle Vocabulary Builder flashcards — ported from Cardsmith's cardsmith.css,
   scoped under .kindle-app so none of it leaks into the rest of AbjadPro.
   Colors map onto AbjadPro's design tokens (see application.css) where sensible. */

.kindle-app {
  --k-bg: var(--color-bg, #f6f7f9);
  --k-surface: var(--color-bg-card, #ffffff);
  --k-border: var(--color-border, #e2e5ea);
  --k-text: var(--color-text, #1f2430);
  --k-muted: var(--color-text-muted, #5b6472);
  --k-brand: var(--color-primary, #2d6b6b);
  --k-brand-dark: var(--color-primary-hover, #1a4a4a);
  --k-success: #2b8a3e;
  --k-danger: var(--color-danger, #c92a2a);
  --k-radius: var(--radius-md, 10px);

  color: var(--k-text);
  font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

.kindle-app * { box-sizing: border-box; }

.kindle-app a { color: var(--k-brand); }
.kindle-app a:hover { color: var(--k-brand-dark); }

/* ---- Typography ---- */

.kindle-app h1 { font-size: 1.6rem; margin: 0 0 0.5em; }
.kindle-app h2 { font-size: 1.2rem; margin: 1.5em 0 0.5em; }
.kindle-app .lead { color: var(--k-muted); font-size: 1.05rem; margin-top: 0; }

/* ---- Panels / cards ---- */

.kindle-app .panel {
  background: var(--k-surface);
  border: 1px solid var(--k-border);
  border-radius: var(--k-radius);
  padding: 22px;
  margin-bottom: 18px;
}
.kindle-app .panel--center { text-align: center; }

/* ---- Buttons ---- */

.kindle-app .btn,
.kindle-app button[type="submit"],
.kindle-app input[type="submit"] {
  display: inline-block;
  background: var(--k-brand);
  color: #fff;
  border: 1px solid var(--k-brand);
  border-radius: 8px;
  padding: 10px 18px;
  font: inherit;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
}
.kindle-app .btn:hover,
.kindle-app button[type="submit"]:hover,
.kindle-app input[type="submit"]:hover { background: var(--k-brand-dark); border-color: var(--k-brand-dark); color: #fff; }

.kindle-app .btn--secondary,
.kindle-app button[type="submit"].btn--secondary,
.kindle-app input[type="submit"].btn--secondary {
  background: var(--k-surface);
  /* AbjadPro's global `.btn` forces a filled (terracotta) background with
     !important, so keep the label white for contrast on every breakpoint. */
  color: #fff;
  border-color: var(--k-brand);
}
.kindle-app .btn--secondary:hover,
.kindle-app button[type="submit"].btn--secondary:hover,
.kindle-app input[type="submit"].btn--secondary:hover { background: rgba(45, 107, 107, 0.08); color: #fff; }

.kindle-app .btn--success,
.kindle-app button[type="submit"].btn--success,
.kindle-app input[type="submit"].btn--success {
  /* AbjadPro's global `.btn` forces a terracotta background with !important,
     so match it to keep Correct green. */
  background: var(--k-success) !important;
  border-color: var(--k-success);
  color: #fff;
}
.kindle-app .btn--success:hover,
.kindle-app button[type="submit"].btn--success:hover,
.kindle-app input[type="submit"].btn--success:hover { background: #2f9e44 !important; border-color: #2f9e44; color: #fff; }

.kindle-app .btn--danger,
.kindle-app button[type="submit"].btn--danger,
.kindle-app input[type="submit"].btn--danger {
  /* See .btn--success: override the global !important so Incorrect stays red. */
  background: var(--k-danger) !important;
  border-color: var(--k-danger);
  color: #fff;
}
.kindle-app .btn--danger:hover,
.kindle-app button[type="submit"].btn--danger:hover,
.kindle-app input[type="submit"].btn--danger:hover { background: #e03131 !important; border-color: #e03131; color: #fff; }

/* Regenerate/Delete actions use AbjadPro's global `.btn-reverse`, which ships a
   Playfair serif face plus its own padding/radius. Normalize every `.btn-reverse`
   here — plain <button> and button_to's <button type="submit"> alike — so the
   Regenerate and Delete buttons render identically. */
.kindle-app .btn-reverse,
.kindle-app button[type="submit"].btn-reverse {
  font: inherit;
  font-weight: 600;
  letter-spacing: normal;
  padding: 10px 18px;
  border-radius: 8px;
}

.kindle-app .btn-row { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 8px; }
.kindle-app .btn-row[hidden] { display: none; }
.kindle-app .btn-row form { margin: 0; }

/* Regenerate + Delete actions share one right-aligned column so every button
   renders at the same width and border treatment. */
.kindle-app .card-actions {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 10px;
  width: fit-content;
  margin: 22px 0 0 auto;
}
.kindle-app .card-actions form { margin: 0; }
.kindle-app .regen-row .btn-reverse,
.kindle-app .delete-row > .btn-reverse { width: 100%; }

.kindle-app .regen-row {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.kindle-app .regen-row form[hidden] { display: none; }
.kindle-app .regen-row:not(:has(form:not([hidden]))) { display: none; }

.kindle-app .delete-confirm { text-align: right; }
.kindle-app .delete-confirm[hidden],
.kindle-app .delete-row [data-kindle-confirm-target="trigger"][hidden] { display: none; }
.kindle-app .delete-confirm__warning { max-width: 16rem; margin: 0 0 8px auto; color: var(--k-danger); font-size: 0.9rem; font-weight: 500; }
.kindle-app .delete-confirm .btn-row { justify-content: flex-end; }

/* ---- Forms ---- */

.kindle-app form p { margin: 0 0 14px; }

.kindle-app input[type="text"],
.kindle-app input[type="email"],
.kindle-app input[type="password"],
.kindle-app input[type="file"],
.kindle-app select {
  width: 100%;
  max-width: 360px;
  padding: 9px 11px;
  border: 1px solid var(--k-border);
  border-radius: 8px;
  font: inherit;
  background: var(--k-surface);
  color: var(--k-text);
  margin: 4px 0 12px;
}

.kindle-app label { font-weight: 600; }

/* ---- Step list (onboarding / guides) ---- */

.kindle-app .steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: 0;
}
.kindle-app .steps > li {
  counter-increment: step;
  position: relative;
  padding: 4px 0 22px 48px;
  border-left: 2px solid var(--k-border);
  margin-left: 15px;
}
.kindle-app .steps > li:last-child { border-left-color: transparent; padding-bottom: 0; }
.kindle-app .steps > li::before {
  content: counter(step);
  position: absolute;
  left: -16px;
  top: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--k-brand);
  color: #fff;
  font-weight: 700;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.kindle-app .steps h3 { margin: 0 0 4px; font-size: 1.05rem; }
.kindle-app .steps p { margin: 0 0 8px; color: var(--k-muted); }

/* ---- Misc ---- */

.kindle-app code {
  background: rgba(0, 0, 0, 0.06);
  padding: 1px 5px;
  border-radius: 4px;
  font-size: 0.9em;
}

.kindle-app .muted { color: var(--k-muted); }
.kindle-app .errors {
  background: #fff0f0;
  border: 1px solid #ffc9c9;
  color: var(--k-danger);
  border-radius: var(--k-radius);
  padding: 12px 16px 12px 34px;
  margin-bottom: 16px;
}
.kindle-app .errors ul { margin: 0; padding-left: 4px; }

.kindle-app .flash__alert { background: #fff0f0; color: var(--k-danger); border: 1px solid #ffc9c9; }

.kindle-app .help { margin: 14px 0; }
.kindle-app .help__answer { margin-top: 12px; }
.kindle-app .help__answer[hidden] { display: none; }

.kindle-app .flashcard {
  font-size: 1.9rem;
  font-weight: 700;
  margin: 8px 0 4px;
}
.kindle-app .flashcard__sentence { font-style: italic; color: var(--k-muted); font-size: 1.05rem; }
.kindle-app .flashcard__answer { font-size: 1.3rem; font-weight: 600; margin: 6px 0 2px; }

/* ---- vocab.db dropzone (upload page) ---- */

.kindle-app .dropzone {
  border: 2px dashed var(--k-border);
  border-radius: var(--k-radius);
  padding: 22px 18px;
  text-align: center;
  margin-bottom: 14px;
  transition: border-color .15s ease, background .15s ease;
}
.kindle-app .dropzone--over { border-color: var(--k-brand); background: rgba(45, 107, 107, 0.08); }
.kindle-app .dropzone__hint { margin: 0 0 4px; }
.kindle-app .dropzone__or {
  margin: 8px 0;
  color: var(--k-muted);
  font-size: .8rem;
  text-transform: uppercase;
  letter-spacing: .06em;
}
.kindle-app .dropzone .btn-row { justify-content: center; }
.kindle-app .dropzone label.btn { position: relative; overflow: hidden; color: #fff; }
.kindle-app .dropzone label.btn:hover { color: #fff; }
.kindle-app .dropzone label.btn:focus-within { outline: 2px solid var(--k-brand); outline-offset: 2px; }

.kindle-app .visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.kindle-app .vocab-status { margin: 12px 0 0; font-weight: 600; }
.kindle-app .vocab-status[hidden] { display: none; }
.kindle-app .vocab-status--ok { color: var(--k-success); }
.kindle-app .vocab-status--error { color: var(--k-danger); }

/* ---- Upload in progress ---- */

.kindle-app .upload-status__label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  margin: 0 0 6px;
}

.kindle-app .spinner {
  flex: none;
  width: 16px;
  height: 16px;
  border: 2px solid var(--k-border);
  border-top-color: var(--k-brand);
  border-radius: 50%;
  animation: kindle-spin 0.8s linear infinite;
}

@keyframes kindle-spin {
  to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .kindle-app .spinner { animation-duration: 2.4s; }
}

/* ---- Upload review: language / book word picker ---- */

.kindle-app .pick-bar {
  position: sticky;
  top: 8px;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
}
.kindle-app .pick-bar input[type="submit"] { padding: 8px 14px; }

.kindle-app .lang-group {
  background: var(--k-surface);
  border: 1px solid var(--k-border);
  border-radius: var(--k-radius);
  padding: 6px 16px;
  margin-bottom: 14px;
}
.kindle-app .lang-group--native { opacity: 0.85; }

.kindle-app .lang-group__bar { display: flex; align-items: flex-start; gap: 10px; }
.kindle-app .lang-group__bar > input[type="checkbox"] { margin-top: 13px; flex: none; }

.kindle-app .lang-group__disclosure { flex: 1; min-width: 0; }
.kindle-app .lang-group__disclosure > summary {
  cursor: pointer;
  padding: 8px 0;
  font-weight: 700;
  list-style-position: inside;
}
.kindle-app .lang-group__name { font-size: 1.1rem; }
.kindle-app .lang-group__name + .muted { font-weight: 400; margin-left: 8px; }

.kindle-app .book-group { border-top: 1px solid var(--k-border); padding: 6px 0; }
.kindle-app .book-group:first-of-type { border-top: 0; }

.kindle-app .book-group__bar { display: flex; align-items: flex-start; gap: 10px; }
.kindle-app .book-group__bar > input[type="checkbox"] { margin-top: 7px; flex: none; }

.kindle-app .book-group__disclosure { flex: 1; min-width: 0; }
.kindle-app .book-group__disclosure > summary {
  cursor: pointer;
  padding: 4px 0;
  list-style-position: inside;
}
.kindle-app .book-group__title { font-weight: 600; }

.kindle-app .book-group__words { padding: 4px 0 8px 26px; }
.kindle-app .book-group__words .word-row:last-child { border-bottom: 0; }

.kindle-app .audio-clip {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin: 4px 0 14px;
}
.kindle-app .audio-clip__player { height: 34px; max-width: 100%; }
.kindle-app .audio-clip__status { margin: 0; }