/*
 * components.css — Reusable UI components (BEM)
 * Tribu Bamiléké — tribubamileke.org
 */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.625rem 1.25rem;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: var(--fs-base);
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast);
}

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

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

[data-theme="dark"] .btn--primary {
  color: #1a150f;
}

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

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

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

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

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

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

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

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

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

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

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

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

/* ---------- Tags / Badges ---------- */
.tag {
  display: inline-block;
  padding: 0.125rem 0.625rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  border-radius: var(--radius-pill);
  background-color: var(--color-bg-alt);
  color: var(--color-text-light);
  border: 1px solid var(--color-border);
}

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

[data-theme="dark"] .tag--category {
  color: #1a150f;
}

/* ---------- Tabs (role="tablist") ---------- */
.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-color: var(--color-bg-alt);
}

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

.tabs__panel {
  animation: fade-in var(--transition-base);
}

.tabs__panel[hidden] {
  display: none;
}

@keyframes fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

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

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

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

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

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

.accordion__panel[hidden] {
  display: none;
}

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

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

.breadcrumb__item + .breadcrumb__item::before {
  content: "›";
  margin: 0 var(--space-xs);
  color: var(--color-text-light);
}

.breadcrumb__item[aria-current="page"] {
  color: var(--color-text-light);
}

/* ---------- Language switcher (fixed pill in nav) ---------- */
.lang-switcher {
  display: inline-flex;
  border: 2px solid var(--color-primary);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

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

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

/* ---------- Theme toggle ---------- */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.25rem;
  height: 2.25rem;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-border);
  color: var(--color-text);
  font-size: 1rem;
}

.theme-toggle:hover {
  border-color: var(--color-secondary);
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: #ffffff;
  background-size: cover;
  background-position: center;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(13, 47, 92, 0.55), rgba(44, 36, 24, 0.65));
}

.hero__content {
  position: relative;
  z-index: 1;
  padding: var(--space-xl) var(--space-md);
  max-width: 50rem;
}

.hero__title {
  font-size: var(--fs-3xl);
  color: #ffffff;
  margin-bottom: var(--space-md);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.hero__tagline {
  font-size: var(--fs-lg);
  color: #f0ece4;
  margin-bottom: var(--space-lg);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.5);
}

/* ---------- Widgets (word of the day / phrase of the day) ---------- */
.widget {
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-left: 5px solid var(--color-secondary);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
}

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

.widget__word {
  font-size: var(--fs-xl);
  margin: var(--space-sm) 0;
}

.widget__meta {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
}

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

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

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-white);
  color: var(--color-text);
}

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

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

.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-color: var(--color-bg-alt);
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius-sm);
}

/* ---------- Audio player ---------- */
.audio-player {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  max-width: 28rem;
}

.audio-player__btn {
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  border-radius: var(--radius-pill);
  background-color: var(--color-primary);
  color: #ffffff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
}

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

.audio-player__seek {
  flex: 1;
  accent-color: var(--color-primary);
}

.audio-player__volume {
  width: 4.5rem;
  accent-color: var(--color-secondary);
}

.audio-player__time {
  font-size: var(--fs-sm);
  color: var(--color-text-light);
  min-width: 4.5rem;
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.audio-player--unavailable {
  opacity: 0.75;
}

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

/* ---------- Gallery ---------- */
.gallery__filters {
  display: flex;
  flex-wrap: wrap;
  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-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
  padding: 0;
  display: block;
  width: 100%;
}

.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 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background-color: rgba(13, 10, 6, 0.92);
  padding: var(--space-lg);
}

.lightbox[hidden] {
  display: none;
}

.lightbox__img {
  max-height: 75vh;
  max-width: 100%;
  border-radius: var(--radius-md);
}

.lightbox__caption {
  color: #f0ece4;
  margin-top: var(--space-md);
  text-align: center;
  max-width: 40rem;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  color: #ffffff;
  font-size: 2rem;
  padding: var(--space-sm) var(--space-md);
  line-height: 1;
}

.lightbox__close { top: var(--space-md); right: var(--space-md); }
.lightbox__prev { left: var(--space-sm); top: 50%; transform: translateY(-50%); }
.lightbox__next { right: var(--space-sm); top: 50%; transform: translateY(-50%); }

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  padding-left: var(--space-lg);
  border-left: 3px solid var(--color-secondary);
}

.timeline__item {
  position: relative;
  margin-bottom: var(--space-xl);
  padding-left: var(--space-md);
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: calc(-1 * var(--space-lg) - 8px);
  top: 0.4rem;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-accent);
  border: 3px solid var(--color-bg);
}

.timeline__era {
  font-size: var(--fs-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
}

.timeline__title {
  margin: var(--space-xs) 0 var(--space-sm);
}

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

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

.quiz__option--correct {
  border-color: #2e7d32;
  background-color: rgba(46, 125, 50, 0.12);
}

.quiz__option--wrong {
  border-color: var(--color-accent);
  background-color: rgba(184, 58, 38, 0.12);
}

.quiz__score {
  font-weight: 700;
  font-size: var(--fs-md);
}

/* ---------- Progress bar (lessons) ---------- */
.progress {
  height: 0.625rem;
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-pill);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.progress__bar {
  height: 100%;
  background-color: var(--color-secondary);
  border-radius: var(--radius-pill);
  transition: width var(--transition-base);
}

/* ---------- Notice / disclaimer ---------- */
.notice {
  padding: var(--space-md) var(--space-lg);
  background-color: var(--color-bg-alt);
  border-left: 5px solid var(--color-accent);
  border-radius: var(--radius-sm);
  margin: var(--space-lg) 0;
  font-size: var(--fs-sm);
}

.notice__title {
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
}

/* ---------- Proverb ---------- */
.proverb {
  background-color: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-md);
}

.proverb__text {
  font-family: var(--font-heading);
  font-size: var(--fs-md);
  font-style: italic;
  margin-bottom: var(--space-sm);
}

.proverb__meaning {
  color: var(--color-text-light);
  font-size: var(--fs-sm);
  margin-bottom: 0;
}

/* ---------- Story full text (preserves paragraph breaks from JSON) ---------- */
.story__full {
  white-space: pre-line;
}

/* ---------- Genealogy tree ---------- */
.tree {
  list-style: none;
  padding-left: var(--space-lg);
  border-left: 2px dashed var(--color-border);
}

.tree__node {
  margin: var(--space-sm) 0;
}

.tree__label {
  font-weight: 600;
}