/* =============================================================================
   UFPR SWS Slider — Frontend CSS
   Responsivo para desktop, tablet e mobile
   ============================================================================= */

/* ── Wrapper externo — limita a largura máxima e centraliza ── */
.ufpr-sws-slider-wrapper {
  position: relative;
  width: 100%;
  margin: 0 auto;
  box-sizing: border-box;
  font-size: 0; /* Remove espaço inline indesejado */
}

/* ── Truque do padding-bottom para manter aspect ratio ──────
   Definido inline via PHP: padding-bottom = (height/width)*100%
   Isso garante que o slider sempre mantenha a proporção
   correta em qualquer tamanho de tela.                      */
.ufpr-sws-slider-ratio {
  position: relative;
  width: 100%;
  height: 0;
  /* padding-bottom definido inline no PHP */
  overflow: hidden;
  background-color: #1a1a1a;
}

/* ── Track: container de todos os slides ── */
.ufpr-sws-slider-track {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ── Slide individual ── */
.ufpr-sws-slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 0.6s ease-in-out;
  pointer-events: none;
}

.ufpr-sws-slide--active {
  opacity: 1;
  pointer-events: auto;
}

/* ── Link clicável sobre o slide ── */
.ufpr-sws-slide-link {
  display: block;
  width: 100%;
  height: 100%;
  position: absolute;
  inset: 0;
  cursor: pointer;
  z-index: 1;
}

.ufpr-sws-slide-link img {
  position: absolute;
  inset: 0;
}

/* ── Imagem: sempre preenche o slide sem distorção ── */
.ufpr-sws-slide img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  user-select: none;
}

/* ── Botões de navegação (setas) ── */
.ufpr-sws-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: rgba(0, 0, 0, 0.45);
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  width: 44px;
  height: 44px;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  z-index: 10;
  transition: background 0.2s, transform 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  -webkit-tap-highlight-color: transparent;
}

.ufpr-sws-btn:hover,
.ufpr-sws-btn:focus-visible {
  background: rgba(0, 0, 0, 0.75);
  outline: 2px solid #fff;
}

.ufpr-sws-btn--prev { left: 12px; }
.ufpr-sws-btn--next { right: 12px; }

/* ── Bolinhas indicadoras ── */
.ufpr-sws-dots {
  position: absolute;
  bottom: 12px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 10;
}

.ufpr-sws-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  border: 2px solid rgba(255, 255, 255, 0.7);
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s;
  -webkit-tap-highlight-color: transparent;
}

.ufpr-sws-dot--active {
  background: #fff;
  transform: scale(1.3);
}

.ufpr-sws-dot:hover {
  background: rgba(255, 255, 255, 0.85);
}

/* ── Responsividade ── */

/* Tablet (≤ 768px) */
@media (max-width: 768px) {
  .ufpr-sws-btn {
    width: 36px;
    height: 36px;
    font-size: 15px;
  }

  .ufpr-sws-btn--prev { left: 6px; }
  .ufpr-sws-btn--next { right: 6px; }

  .ufpr-sws-dot {
    width: 8px;
    height: 8px;
  }
}

/* Mobile (≤ 480px) */
@media (max-width: 480px) {
  .ufpr-sws-btn {
    width: 32px;
    height: 32px;
    font-size: 13px;
  }

  .ufpr-sws-dots {
    bottom: 8px;
    gap: 6px;
  }

  .ufpr-sws-dot {
    width: 7px;
    height: 7px;
  }
}

/* Acessibilidade: foco visível para navegação por teclado */
.ufpr-sws-btn:focus,
.ufpr-sws-dot:focus {
  outline: 3px solid #005fcc;
  outline-offset: 2px;
}

/* Remove outline no clique com mouse */
.ufpr-sws-btn:focus:not(:focus-visible),
.ufpr-sws-dot:focus:not(:focus-visible) {
  outline: none;
}