/* ==================================================
   BIS SPEAKERS — TEMPLATE ÚNICO
   Mobile: lista vertical
   Desktop: masonry por 4 colunas fixas
   ================================================== */

/* Container geral */
.bis-spk-grid {
  width: 100%;
  max-width: 100%;

  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Item */
.bis-spk-item {
  width: 100%;
  max-width: 100%;
}

/* Card */
.bis-spk-card {
  position: relative;
  display: block;

  width: 100%;
  max-width: 100%;

  color: var(--c-white);
  cursor: default;

  transition: var(--t-smooth);
}

.bis-spk-card--has-desc {
  cursor: pointer;
}

/* Header fixo: foto + gradiente + nome/função/botão */
.bis-spk-header {
  position: relative;
  overflow: hidden;

  min-height: 220px;

  color: var(--c-white);
	
  background-image: url("https://biotainvasorassummit.com/wp-content/themes/bis_v1/img/squares/pattern-mexilhao-trans_c_2x1.png");
background-size: cover;
background-position: center center;
background-repeat: no-repeat;
}

/*
  Foto de fundo.
  A layer tem 132% da largura do card.
  Como o centro de 132% é 66%, o centro visual da imagem fica aos 66% do card.
*/
.bis-spk-bg {
  position: absolute;
  inset: 0 auto 0 0;

  width: 100%;
  height: 100%;

  z-index: 0;

  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
}

/* Gradiente do header */
.bis-spk-gradient {
  position: absolute;
  inset: 0;

  z-index: 1;
  pointer-events: none;

  background: linear-gradient(0deg, black 0%, transparent 50%)
}

/* Conteúdo do header */
.bis-spk-header-content {
  z-index: 2;
  color: var(--c-white);
}

/* Texto */
.bis-spk-head-main {
  min-width: 0;
  color: var(--c-white);
}

.bis-spk-name {
  color: var(--c-white);

  font-family: 'UniviaProBold', sans-serif;
  line-height: 1.05;

  white-space: normal;
  overflow: visible;
  text-overflow: clip;

  overflow-wrap: normal;
  word-break: normal;
}

.bis-spk-role {
  color: var(--c-white);
  opacity: 0.9;

  line-height: 1.15;

  white-space: normal;
  overflow: visible;
  text-overflow: clip;

  overflow-wrap: normal;
  word-break: normal;
}

/* Botão + */
.bis-spk-toggle {
  width: 36px;
  height: 36px;
  min-width: 36px;

  border-radius: 50%;

  background: rgba(var(--rgb-white), 0.16);
  color: var(--c-white);

  font-size: 1.4rem;
  line-height: 1;

  cursor: pointer;

  transition: var(--t-smooth);
}

.bis-spk-toggle:hover,
.bis-spk-toggle:focus,
.bis-spk-toggle:active {
  background: rgba(var(--rgb-white), 0.28);
  color: var(--c-white);
  outline: none;
}

.bis-spk-toggle span {
  display: block;
  transition: transform 0.3s ease;
}

.bis-spk-card.is-open .bis-spk-toggle span {
  transform: rotate(45deg);
}

/* ==================================================
   DESCRIÇÃO — base/mobile
   ================================================== */

.bis-spk-descwrap {
  display: block;

  width: 100%;
  height: auto;

  max-height: 0;

  overflow: hidden;

  opacity: 0;
  visibility: hidden;

  color: var(--c-ink);

  transform: translateY(-0.35rem);

  will-change: max-height, opacity, transform;

  transition: var(--t-smooth);
}

.bis-spk-card.is-open .bis-spk-descwrap {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.bis-spk-desc {
  color: var(--c-ink);
  opacity: 0.95;

  line-height: 1.35;
}

.bis-spk-desc p {
  margin-top: 0;
  margin-bottom: 0.75rem;

  color: var(--c-ink);

  white-space: normal;
  overflow: visible;
  text-overflow: clip;

  overflow-wrap: normal;
  word-break: normal;
}

.bis-spk-desc p:last-child {
  margin-bottom: 0;
}

/* ==================================================
   GRID RESPONSIVO
   sm/xs: 1 coluna
   md: 2 colunas
   lg+: 4 colunas
   ================================================== */

.bis-spk-grid {
  --bis-spk-cols: 1;
  --bis-spk-gap: 1rem;

  display: grid;

  grid-template-columns: repeat(var(--bis-spk-cols), minmax(0, 1fr));
  gap: var(--bis-spk-gap);

  width: 100%;
  max-width: 100%;

  align-items: start;
}

.bis-spk-col {
  display: flex;
  flex-direction: column;
  gap: var(--bis-spk-gap);

  width: 100%;
  max-width: 100%;
  min-width: 0;
}

.bis-spk-item {
  display: block;

  width: 100%;
  max-width: 100%;

  margin: 0;
  min-width: 0;
}

/* SM / mobile: 1 coluna */
@media (min-width: 576px) {
  .bis-spk-grid {
    --bis-spk-cols: 1;
    --bis-spk-gap: 1rem;
  }
}

/* MD: 2 colunas */
@media (min-width: 768px) {
  .bis-spk-grid {
    --bis-spk-cols: 2;
    --bis-spk-gap: 1.25rem;
  }
}

/* LG+: 4 colunas */
@media (min-width: 992px) {
  .bis-spk-grid {
    --bis-spk-cols: 4;
    --bis-spk-gap: 1.5rem;
  }

  .bis-spk-card {
    cursor: default;
  }

  .bis-spk-card--has-desc {
    cursor: default;
  }

  .bis-spk-header {
    min-height: 300px;
  }

  .bis-spk-name {
    font-size: 1.15rem;
  }

  .bis-spk-toggle {
    display: none !important;
  }

  .bis-spk-card--has-desc:hover .bis-spk-descwrap {
    max-height: 520px !important;
    opacity: 1 !important;
    visibility: visible !important;
    transform: translateY(0) !important;
  }

  .bis-spk-descwrap {
    overflow: hidden;
  }

  .bis-spk-desc {
    max-height: 420px;

    overflow-y: auto;
    overflow-x: hidden;
  }
}