/* ==========================================================================
   VionTech — Página de Detalhes do Material
   Reaproveita os tokens do design system e as classes .vt-matGrid__card
   já definidas em materiais.css (usadas na seção de relacionados).
   ========================================================================== */

.vt-matDetails *,
.vt-matNotFound * {
  box-sizing: border-box;
}

.vt-matDetails {
  position: relative;
  overflow-x: hidden;
  background: var(--vt-hero-bg, #F7F7FC);
  padding: 48px 24px 72px;
  max-width: 100vw;
  isolation: isolate;
}

.vt-matDetails__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image: radial-gradient(var(--vt-hero-line, #E7E5F5) 1.5px, transparent 1.5px);
  background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 40%, transparent 90%);
  opacity: 0.9;
}

.vt-matDetails__inner {
  position: relative;
  z-index: 2;
  max-width: 1000px;
  margin: 0 auto;
}

.vt-matDetails__back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--vt-font-display);
  font-size: 13px;
  font-weight: 600;
  color: var(--vt-gray-600);
  text-decoration: none;
  margin-bottom: 24px;
  transition: color 120ms ease, transform 120ms ease;
}

.vt-matDetails__back:hover {
  color: var(--vt-purple-600);
  transform: translateX(-2px);
}

.vt-matDetails__card {
  display: grid;
  grid-template-columns: minmax(0, 300px) minmax(0, 1fr);
  align-items: stretch;
  background: var(--vt-white);
  border: 2px solid var(--vt-ink);
  border-radius: 20px;
  box-shadow: var(--vt-shadow-purple);
  overflow: hidden;
}

.vt-matDetails__visual {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
  background: linear-gradient(150deg, var(--vt-tag-color, var(--vt-purple-500)), var(--vt-ink));
}

.vt-matDetails__icon {
  width: 100px;
  height: 100px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.14);
  border: 2px solid rgba(255, 255, 255, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--vt-white);
  font-size: 46px;
}

.vt-matDetails__content {
  padding: 40px 44px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.vt-matDetails__tag {
  display: inline-flex;
  align-self: flex-start;
  font-family: var(--vt-font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--vt-tag-color, var(--vt-purple-500));
  background: color-mix(in srgb, var(--vt-tag-color, var(--vt-purple-500)) 12%, white);
  padding: 6px 12px;
  border-radius: 999px;
}

.vt-matDetails__title {
  font-family: var(--vt-font-display);
  font-weight: 700;
  font-size: clamp(22px, 3vw, 32px);
  line-height: 1.28;
  color: var(--vt-ink);
  margin: 0;
  max-width: 32ch;
}

.vt-matDetails__desc {
  font-family: var(--vt-font);
  font-size: 15px;
  line-height: 1.7;
  color: var(--vt-gray-600);
  margin: 0;
  max-width: 60ch;
}

.vt-matDetails__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  margin-top: 4px;
}

.vt-matDetails__meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--vt-font);
  font-size: 13.5px;
  color: var(--vt-gray-600);
}

.vt-matDetails__meta i {
  color: var(--vt-tag-color, var(--vt-purple-500));
  font-size: 16px;
}

.vt-matDetails__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 12px;
}

.vt-matDetails__updated {
  font-family: var(--vt-font);
  font-size: 12px;
  color: var(--vt-gray-600);
}

/* Seção de relacionados reaproveita .vt-matGrid, só ajusta o espaçamento
   já que aqui não tem hero acima, é a segunda seção da página. */
.vt-matDetails__related {
  padding-top: 64px;
}

/* ---------- Material não encontrado ---------- */
.vt-matNotFound {
  min-height: 50vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 64px 24px;
  background: var(--vt-hero-bg, #F7F7FC);
}

.vt-matNotFound__inner {
  max-width: 480px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.vt-matNotFound__inner i {
  font-size: 40px;
  color: var(--vt-purple-500);
  margin-bottom: 4px;
}

.vt-matNotFound__inner h1 {
  font-family: var(--vt-font-display);
  font-weight: 700;
  font-size: 24px;
  color: var(--vt-ink);
  margin: 0;
}

.vt-matNotFound__inner p {
  font-family: var(--vt-font);
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--vt-gray-600);
  margin: 0 0 8px;
}

@media (max-width: 900px) {
  .vt-matDetails__card {
    grid-template-columns: 1fr;
  }

  .vt-matDetails__visual {
    padding: 32px;
  }

  .vt-matDetails__content {
    padding: 30px 28px;
  }
}

@media (max-width: 640px) {
  .vt-matDetails {
    padding: 32px 16px 56px;
  }

  .vt-matDetails__icon {
    width: 76px;
    height: 76px;
    font-size: 34px;
    border-radius: 18px;
  }

  .vt-matDetails__content {
    padding: 24px 20px;
  }

  .vt-matDetails__actions {
    width: 100%;
    flex-direction: column;
    align-items: flex-start;
  }

  .vt-matDetails__actions .vt-btn {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- Sobre este material ---------- */
.vt-matDetails__about {
  margin-top: 28px;
  padding: 28px 32px;
  background: var(--vt-white);
  border: 2px solid var(--vt-ink);
  border-radius: 18px;
  box-shadow: var(--vt-shadow-ink);
}

.vt-matDetails__about-title {
  font-family: var(--vt-font-display);
  font-weight: 700;
  font-size: 17px;
  color: var(--vt-ink);
  margin: 0 0 16px;
}

.vt-matDetails__about-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 24px;
}

.vt-matDetails__about-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-family: var(--vt-font);
  font-size: 14px;
  line-height: 1.55;
  color: var(--vt-gray-600);
}

.vt-matDetails__about-list i {
  flex-shrink: 0;
  margin-top: 1px;
  color: var(--vt-tag-color, var(--vt-purple-500));
  font-size: 17px;
}

.vt-matDetails__about-html {
  font-family: var(--vt-font);
  font-size: 14px;
  line-height: 1.65;
  color: var(--vt-gray-600);
}

.vt-matDetails__about-html > *:first-child {
  margin-top: 0;
}

.vt-matDetails__about-html > *:last-child {
  margin-bottom: 0;
}

.vt-matDetails__about-html h3 {
  font-family: var(--vt-font-display);
  font-weight: 700;
  font-size: 15px;
  color: var(--vt-ink);
  margin: 18px 0 8px;
}

.vt-matDetails__about-html p {
  margin: 0 0 12px;
}

.vt-matDetails__about-html ul,
.vt-matDetails__about-html ol {
  margin: 0 0 12px;
  padding-left: 20px;
}

.vt-matDetails__about-html li {
  margin: 0 0 6px;
}

@media (max-width: 640px) {
  .vt-matDetails__about {
    padding: 22px 20px;
  }

  .vt-matDetails__about-list {
    grid-template-columns: 1fr;
  }
}