/* ==========================================================================
   components.css — buttons, cards, tags, tabs, accordion, breadcrumb,
   switchers, forms, timeline, lightbox, audio player, quiz (BEM naming)
   ========================================================================== */

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-block;
  padding: 0.6rem 1.4rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-base);
  text-decoration: none;
  text-align: center;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  transition: background-color var(--transition-fast), color var(--transition-fast),
    border-color var(--transition-fast), transform var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn--primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  color: var(--color-on-primary);
}

.btn--secondary {
  background: var(--color-secondary);
  color: #2c2418;
}

.btn--secondary:hover {
  background: var(--color-secondary-light);
  color: #2c2418;
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn--ghost:hover {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.btn--sm {
  padding: 0.35rem 0.9rem;
  font-size: var(--fs-sm);
}

/* --------------------------------------------------------------------------
   Cards
   -------------------------------------------------------------------------- */
.card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.card--image img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.card--feature {
  border-left: 4px solid var(--color-secondary);
}

.card__body {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  flex: 1;
  padding: var(--space-md);
}

.card__title {
  font-size: var(--fs-lg);
}

.card__title a {
  text-decoration: none;
  color: var(--color-text);
}

.card__title a:hover {
  color: var(--color-primary);
}

.card__text {
  color: var(--color-text-light);
  flex: 1;
}

.card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  align-items: center;
  font-size: var(--fs-sm);
  color: var(--color-text-light);
}

.card__footer {
  margin-top: auto;
  padding-top: var(--space-sm);
}

/* --------------------------------------------------------------------------
   Tags / badges
   -------------------------------------------------------------------------- */
.tag {
  display: inline-block;
  padding: 0.15rem 0.7rem;
  font-size: var(--fs-sm);
  border-radius: var(--radius-pill);
  background: var(--color-bg-alt);
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

.tag--category {
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-color: var(--color-primary);
}

.tag--gold {
  background: var(--color-secondary);
  color: #2c2418;
  border-color: var(--color-secondary);
}

/* --------------------------------------------------------------------------
   Tabs (accessible: role=tablist/tab/tabpanel)
   -------------------------------------------------------------------------- */
.tabs__list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-lg);
}

.tabs__tab {
  padding: var(--space-sm) var(--space-md);
  font-weight: 600;
  color: var(--color-text-light);
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
}

.tabs__tab:hover {
  color: var(--color-primary);
  background: var(--color-bg-alt);
}

.tabs__tab[aria-selected="true"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-secondary);
}

.tabs__panel[hidden] {
  display: none;
}

/* --------------------------------------------------------------------------
   Accordion (accessible expand/collapse)
   -------------------------------------------------------------------------- */
.accordion__item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  background: var(--color-surface);
  overflow: hidden;
}

.accordion__trigger {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: var(--space-md);
  font-weight: 600;
  text-align: left;
  color: var(--color-text);
}

.accordion__trigger:hover {
  background: var(--color-bg-alt);
}

.accordion__icon {
  flex-shrink: 0;
  margin-left: var(--space-sm);
  transition: transform var(--transition-fast);
}

.accordion__trigger[aria-expanded="true"] .accordion__icon {
  transform: rotate(180deg);
}

.accordion__panel {
  padding: 0 var(--space-md) var(--space-md);
  color: var(--color-text-light);
}

.accordion__panel[hidden] {
  display: none;
}

/* --------------------------------------------------------------------------
   Breadcrumb
   -------------------------------------------------------------------------- */
.breadcrumb {
  padding: var(--space-sm) 0;
  font-size: var(--fs-sm);
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  list-style: none;
}

.breadcrumb li + li::before {
  content: "›";
  margin-right: var(--space-xs);
  color: var(--color-text-light);
}

.breadcrumb a {
  color: var(--color-text-light);
}

.breadcrumb [aria-current="page"] {
  color: var(--color-text);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Language switcher (pill) & theme toggle
   -------------------------------------------------------------------------- */
.lang-switcher {
  display: inline-flex;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
  background: var(--color-surface);
}

.lang-switcher__btn {
  padding: 0.25rem 0.75rem;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-text-light);
}

.lang-switcher__btn[aria-pressed="true"] {
  background: var(--color-primary);
  color: var(--color-on-primary);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  font-size: 1rem;
  line-height: 1;
}

.theme-toggle:hover {
  background: var(--color-bg-alt);
}

/* --------------------------------------------------------------------------
   Forms
   -------------------------------------------------------------------------- */
.form__group {
  margin-bottom: var(--space-md);
}

.form__label {
  display: block;
  margin-bottom: var(--space-xs);
  font-weight: 600;
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 0.6rem 0.8rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--color-primary);
}

.form__error {
  display: none;
  margin-top: var(--space-xs);
  font-size: var(--fs-sm);
  color: var(--color-accent);
}

.form__group--invalid .form__error {
  display: block;
}

.form__group--invalid .form__input,
.form__group--invalid .form__textarea {
  border-color: var(--color-accent);
}

.form__success {
  padding: var(--space-md);
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-md);
}

/* --------------------------------------------------------------------------
   Timeline (vertical on mobile; horizontal scroll ≥900px in responsive.css)
   -------------------------------------------------------------------------- */
.timeline {
  position: relative;
  padding-left: var(--space-lg);
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0.6rem;
  width: 3px;
  background: var(--color-secondary);
  border-radius: var(--radius-pill);
}

.timeline__item {
  position: relative;
  margin-bottom: var(--space-lg);
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-lg) + 0.25rem);
  top: 0.4rem;
  width: 1rem;
  height: 1rem;
  background: var(--color-primary);
  border: 3px solid var(--color-bg);
  border-radius: 50%;
}

.timeline__date {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--color-primary);
}

.timeline__card {
  margin-top: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.timeline__card img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-sm);
}

/* --------------------------------------------------------------------------
   Gallery + lightbox
   -------------------------------------------------------------------------- */
.gallery__filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.gallery__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(15rem, 1fr));
  gap: var(--space-md);
}

.gallery__item {
  border: none;
  padding: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.gallery__item img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--transition-base);
}

.gallery__item:hover img {
  transform: scale(1.04);
}

.gallery__item[hidden] {
  display: none;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-lg);
  background: rgba(20, 15, 8, 0.92);
}

.lightbox[hidden] {
  display: none;
}

.lightbox__img {
  max-width: 100%;
  max-height: 75vh;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.lightbox__caption {
  margin-top: var(--space-md);
  color: #f0ece4;
  text-align: center;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  border-radius: 50%;
  background: rgba(250, 248, 244, 0.15);
  color: #fff;
  font-size: 1.5rem;
}

.lightbox__close { top: 1rem; right: 1rem; }
.lightbox__prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 1rem; top: 50%; transform: translateY(-50%); }

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  background: rgba(250, 248, 244, 0.35);
}

/* --------------------------------------------------------------------------
   Audio player
   -------------------------------------------------------------------------- */
.audio-player {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.audio-player__controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.audio-player__play {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-size: 1rem;
}

.audio-player__play:hover {
  background: var(--color-primary-dark);
}

.audio-player__seek,
.audio-player__volume {
  accent-color: var(--color-primary);
}

.audio-player__seek {
  flex: 1;
}

.audio-player__volume {
  width: 5rem;
}

.audio-player__time {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  font-variant-numeric: tabular-nums;
}

.audio-player__title {
  font-weight: 600;
}

.audio-player__fallback {
  font-size: var(--fs-sm);
  font-style: italic;
  color: var(--color-text-light);
}

.audio-player--unavailable .audio-player__controls {
  display: none;
}

.track-list {
  list-style: none;
}

.track-list__item {
  display: flex;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

/* --------------------------------------------------------------------------
   Lessons & quiz
   -------------------------------------------------------------------------- */
.lesson-card {
  display: grid;
  gap: var(--space-xs);
  padding: var(--space-md);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-md);
}

.lesson-card__beti {
  font-family: var(--font-beti);
  font-size: var(--fs-md);
  font-weight: 700;
  color: var(--color-primary);
}

.lesson-card__phonetic {
  font-family: var(--font-beti);
  font-size: var(--fs-sm);
  color: var(--color-text-light);
}

.lesson-card__row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
}

.progress-bar {
  height: 0.6rem;
  background: var(--color-bg-alt);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.progress-bar__fill {
  height: 100%;
  width: 0;
  background: var(--color-primary);
  border-radius: var(--radius-pill);
  transition: width var(--transition-base);
}

.quiz__option {
  display: block;
  width: 100%;
  margin-bottom: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
}

.quiz__option:hover {
  border-color: var(--color-primary);
}

.quiz__option--correct {
  border-color: var(--color-primary);
  background: rgba(26, 107, 60, 0.12);
}

.quiz__option--wrong {
  border-color: var(--color-accent);
  background: rgba(212, 66, 46, 0.1);
}

/* --------------------------------------------------------------------------
   Word/phrase of the day widget
   -------------------------------------------------------------------------- */
.word-of-day {
  padding: var(--space-lg);
  text-align: center;
  background: var(--color-primary-dark);
  color: #f5f1e8;
  border-radius: var(--radius-lg);
}

.word-of-day__word {
  font-family: var(--font-beti);
  font-size: var(--fs-2xl);
  color: var(--color-secondary-light);
}

.word-of-day__translation {
  margin-top: var(--space-sm);
  font-size: var(--fs-md);
}

/* --------------------------------------------------------------------------
   Story detail
   -------------------------------------------------------------------------- */
.story__body {
  margin-top: var(--space-md);
}

.story__lang-label {
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-secondary);
  font-weight: 700;
}

.story__context {
  margin-top: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius-sm);
  font-size: var(--fs-sm);
}

.story__share {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.audio-player {
  border: 1px solid var(--color-border, #e0e0e0);
  border-radius: var(--radius-md, 8px);
  padding: var(--space-md);
  margin-bottom: var(--space-md);
  background: var(--color-bg-surface, #fff);
  transition: box-shadow 0.2s ease;
}

.audio-player:hover {
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.audio-player__controls {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.audio-player__play-btn {
  width: 44px;
  height: 44px;
  border: none;
  border-radius: 50%;
  background: var(--color-primary, #6d4aff);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.audio-player__play-btn:hover {
  background: var(--color-primary-hover, #5a3ed9);
  transform: scale(1.05);
}

.audio-player__play-btn:active {
  transform: scale(0.95);
}

.audio-player__play-btn svg {
  width: 24px;
  height: 24px;
}

.audio-player__title {
  font-weight: 600;
  font-size: var(--fs-base, 1rem);
  flex-grow: 1;
}

.audio-player__status {
  font-size: var(--fs-sm, 0.875rem);
  color: var(--color-text-muted, #666);
  min-width: 80px;
  text-align: right;
}
/* =============================================================
   FOUNDER CARD & CONTRIBUTORS PLACEHOLDER
   Used on: about.html
   ============================================================= */

.founder-card {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  flex-wrap: wrap;
  margin-top: var(--space-lg);
}

.founder-card__photo {
  flex: 0 0 200px;
}

.founder-card__photo img {
  width: 200px;
  height: 200px;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--color-accent, #6d4aff);
}

.founder-card__bio {
  flex: 1;
  min-width: 280px;
}

.founder-card__name {
  margin: 0 0 .25rem;
  font-family: var(--font-serif, 'Noto Serif', serif);
  font-size: 1.4rem;
}

.founder-card__role {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted, #666);
  font-style: italic;
}

.founder-card__bio p {
  margin: 0;
  line-height: 1.7;
}

/* Responsive: stack photo above bio on narrow screens */
@media (max-width: 560px) {
  .founder-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .founder-card__photo {
    flex: none;
  }

  .founder-card__bio {
    text-align: left;
  }
}

/* ---- Contributors placeholder ---- */

.contributors-placeholder {
  margin-top: var(--space-xxl);
  padding: var(--space-lg);
  border: 2px dashed var(--color-border, #ddd);
  border-radius: var(--radius-md, 8px);
  text-align: center;
}

.contributors-placeholder__title {
  margin: 0 0 .5rem;
  font-size: 1.15rem;
}

.contributors-placeholder__text {
  margin: 0 0 var(--space-md);
  color: var(--color-text-muted, #666);
}


/* =============================================================
   CONTRIBUTE PAGE COMPONENTS
   Used on: contribute.html
   ============================================================= */

/* Contribution method cards */

.contribute-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.contribute-method {
  background: var(--color-surface, #fff);
  border: 1px solid var(--color-border, #ddd);
  border-radius: var(--radius-md, 8px);
  padding: var(--space-md);
  transition: box-shadow .25s ease, transform .25s ease;
}

.contribute-method:hover {
  box-shadow: 0 4px 16px rgba(0, 0, 0, .08);
  transform: translateY(-2px);
}

.contribute-method__icon {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.contribute-method__title {
  margin: 0 0 .5rem;
  font-size: 1.1rem;
  font-weight: 600;
}

.contribute-method__desc {
  margin: 0;
  color: var(--color-text-muted, #666);
  line-height: 1.6;
  font-size: .95rem;
}

/* Steps timeline */

.contribute-steps {
  list-style: none;
  counter-reset: step;
  padding: 0;
  margin: var(--space-lg) 0 0;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.contribute-steps__item {
  counter-increment: step;
  position: relative;
  padding-left: 3.5rem;
  padding-bottom: var(--space-md);
  border-left: 2px solid var(--color-border, #ddd);
  margin-left: 1rem;
}

.contribute-steps__item:last-child {
  border-left-color: transparent;
  padding-bottom: 0;
}

.contribute-steps__item::before {
  content: counter(step);
  position: absolute;
  left: -1.25rem;
  top: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent, #6d4aff);
  color: #fff;
  border-radius: 50%;
  font-weight: 700;
  font-size: .95rem;
}

.contribute-steps__title {
  margin: 0 0 .35rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.contribute-steps__desc {
  margin: 0;
  color: var(--color-text-muted, #666);
  line-height: 1.6;
}

/* Form embed container */

.contribute-form {
  margin-top: var(--space-lg);
  border-radius: var(--radius-md, 8px);
  overflow: hidden;
}

.contribute-form iframe {
  width: 100%;
  border: 0;
  min-height: 600px;
}

/* Contact fallback */

.contribute-contact {
  text-align: center;
  padding: var(--space-lg);
  background: var(--color-surface-alt, #f8f6ff);
  border-radius: var(--radius-md, 8px);
  margin-top: var(--space-lg);
}

.contribute-contact__email {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--color-accent, #6d4aff);
  text-decoration: none;
  word-break: break-word;
}

.contribute-contact__email:hover {
  text-decoration: underline;
}