/* =============================================================================
 * SERIGRAPHIE-BOUTIQUE — Footer v0.2.0
 * =============================================================================
 * Dépendances : tokens.css, halftone.css
 *
 * Structure :
 * - 4 colonnes : Brand (description + localisation) / Univers / Ressources / Confiance
 * - Footer bg sombre (Encre) avec motif halftone inversé en texture
 * - Base line : copyright + langues + liens légaux
 *
 * Accessibilité :
 * - <footer role="contentinfo">
 * - Liens avec contraste AAA validé (Paper sur Ink)
 * ============================================================================= */

.sb-footer {
  position: relative;
  background-color: var(--sb-color-ink);
  color: var(--sb-color-paper);
  padding: var(--sb-sp-12) var(--sb-sp-6) var(--sb-sp-6);
  overflow: hidden;
  font-size: var(--sb-fs-sm);
}

/* Halftone inverted en background (points clairs) */
.sb-footer::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(
    circle,
    var(--sb-color-paper) 1px,
    transparent 1.5px
  );
  background-size: 8px 8px;
  opacity: 0.05;
  pointer-events: none;
}

/* ---------------------------------------------------------------------------
 * Grid 4 colonnes
 * ------------------------------------------------------------------------- */
.sb-footer__grid {
  position: relative;
  max-width: var(--sb-container-max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--sb-sp-8);
  margin-bottom: var(--sb-sp-10);
}

/* ---------------------------------------------------------------------------
 * COL 1 — Brand
 * ------------------------------------------------------------------------- */
.sb-footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--sb-sp-3);
  max-width: 320px;
}

.sb-footer__logo {
  display: flex;
  align-items: center;
  gap: var(--sb-sp-2);
  margin-bottom: var(--sb-sp-2);
}

.sb-footer__logo-dot {
  width: 28px;
  height: 28px;
  background-color: var(--sb-color-paper);
  border-radius: var(--sb-radius-pill);
  position: relative;
  flex-shrink: 0;
}

.sb-footer__logo-dot::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 5px;
  width: 18px;
  height: 18px;
  border-radius: var(--sb-radius-pill);
  background-color: var(--sb-color-accent);
}

.sb-footer__logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
  gap: 3px;
}

.sb-footer__logo-brand {
  font-size: var(--sb-fs-md);
  font-weight: var(--sb-fw-medium);
  letter-spacing: var(--sb-ls-wide);
  color: var(--sb-color-paper);
}

.sb-footer__logo-baseline {
  font-size: var(--sb-fs-micro);
  opacity: 0.6;
  letter-spacing: var(--sb-ls-wider);
  text-transform: uppercase;
}

.sb-footer__description {
  font-size: var(--sb-fs-sm);
  line-height: var(--sb-lh-relaxed);
  opacity: 0.85;
  margin: 0;
}

.sb-footer__location {
  font-size: var(--sb-fs-xs);
  opacity: 0.6;
  margin: 0;
}

/* Newsletter form (optionnel, dans col 1) */
.sb-footer__newsletter {
  margin-top: var(--sb-sp-4);
  display: flex;
  gap: var(--sb-sp-2);
}

.sb-footer__newsletter input {
  flex: 1;
  min-height: 36px;
  padding: var(--sb-sp-2) var(--sb-sp-3);
  background-color: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: var(--sb-radius-sm);
  color: var(--sb-color-paper);
  font-family: var(--sb-font-sans);
  font-size: var(--sb-fs-xs);
}

.sb-footer__newsletter input::placeholder {
  color: rgba(255, 255, 255, 0.5);
}

.sb-footer__newsletter input:focus {
  outline: none;
  border-color: var(--sb-color-accent);
}

.sb-footer__newsletter button {
  padding: var(--sb-sp-2) var(--sb-sp-4);
  background-color: var(--sb-color-accent);
  color: var(--sb-text-on-accent);
  border: none;
  border-radius: var(--sb-radius-sm);
  font-family: var(--sb-font-sans);
  font-size: var(--sb-fs-xs);
  font-weight: var(--sb-fw-medium);
  cursor: pointer;
}

.sb-footer__newsletter button:hover {
  background-color: var(--sb-color-accent-hover);
}

/* ---------------------------------------------------------------------------
 * COLS 2, 3, 4 — Listes de liens
 * ------------------------------------------------------------------------- */
.sb-footer__col-title {
  font-size: var(--sb-fs-xs);
  letter-spacing: var(--sb-ls-widest);
  text-transform: uppercase;
  font-weight: var(--sb-fw-medium);
  color: var(--sb-color-paper);
  opacity: 0.6;
  margin: 0 0 var(--sb-sp-4);
}

.sb-footer__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: var(--sb-sp-2);
}

.sb-footer__list a {
  font-size: var(--sb-fs-sm);
  color: var(--sb-color-paper);
  opacity: 0.85;
  text-decoration: none;
  transition:
    opacity var(--sb-duration-fast) var(--sb-ease-out),
    color var(--sb-duration-fast) var(--sb-ease-out);
}

.sb-footer__list a:hover {
  opacity: 1;
  color: var(--sb-color-accent);
}

.sb-footer__list a:focus-visible {
  outline: none;
  box-shadow: var(--sb-shadow-focus);
  border-radius: var(--sb-radius-sm);
}

/* Items avec indicateur dot (ex. dans col Confiance) */
.sb-footer__list-item--dot {
  display: flex;
  align-items: center;
  gap: var(--sb-sp-2);
}

.sb-footer__list-item--dot::before {
  content: "";
  width: 4px;
  height: 4px;
  border-radius: var(--sb-radius-pill);
  background-color: var(--sb-color-accent);
  flex-shrink: 0;
}

/* ---------------------------------------------------------------------------
 * BASELINE — copyright + langues + mentions légales
 * ------------------------------------------------------------------------- */
.sb-footer__baseline {
  position: relative;
  max-width: var(--sb-container-max-width);
  margin: 0 auto;
  padding-top: var(--sb-sp-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: var(--sb-sp-4);
  font-size: var(--sb-fs-micro);
  opacity: 0.6;
}

.sb-footer__baseline a {
  color: var(--sb-color-paper);
  text-decoration: none;
  margin: 0 var(--sb-sp-2);
}

.sb-footer__baseline a:hover {
  color: var(--sb-color-accent);
}

.sb-footer__baseline-legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--sb-sp-3);
}

/* Sélecteur langue : <select> dropdown compact positionné en bas à droite
 * de la baseline footer (via justify-content: space-between sur le parent).
 * Remplace l'ancienne liste FR/EN/DE. Branché au module JS lang-detect. */
.sb-footer__lang-select {
  background-color: rgba(255, 255, 255, 0.08);
  color: var(--sb-color-paper);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: var(--sb-sp-2) var(--sb-sp-8) var(--sb-sp-2) var(--sb-sp-3);
  border-radius: var(--sb-radius-sm);
  font-family: var(--sb-font-sans);
  font-size: var(--sb-fs-xs);
  font-weight: var(--sb-fw-medium);
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='10' viewBox='0 0 24 24' fill='none' stroke='%23FAFAF7' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right var(--sb-sp-3) center;
  background-size: 10px;
  min-height: 32px;
  transition:
    background-color var(--sb-duration-fast) var(--sb-ease-out),
    border-color var(--sb-duration-fast) var(--sb-ease-out);
}

.sb-footer__lang-select:hover {
  background-color: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.3);
}

.sb-footer__lang-select:focus-visible {
  outline: none;
  border-color: var(--sb-color-accent);
  box-shadow: var(--sb-shadow-focus);
}

.sb-footer__lang-select option {
  background-color: var(--sb-color-ink);
  color: var(--sb-color-paper);
}

/* ---------------------------------------------------------------------------
 * RESPONSIVE
 * ------------------------------------------------------------------------- */
@media (max-width: 1023px) {
  .sb-footer__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--sb-sp-6);
  }
  .sb-footer__brand {
    grid-column: 1 / -1;
    max-width: none;
  }
}

@media (max-width: 640px) {
  .sb-footer {
    padding: var(--sb-sp-8) var(--sb-sp-4) var(--sb-sp-4);
  }
  .sb-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--sb-sp-6);
  }
  .sb-footer__baseline {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sb-sp-3);
  }
  .sb-footer__newsletter {
    flex-direction: column;
  }
}