/* ===== TORAYCON PBT RESIN PAGE ===== */

/* Intro Section */
.pbt-intro {
  padding: 50px 0 30px;
  text-align: center;
}

.pbt-intro h2 {
  color: var(--color-dark);
  margin: 0;
  margin-bottom: 20px;
}

.pbt-intro-desc {
  font-weight: 400;
  max-width: 600px;
  margin: 0 auto;
}

/* About Section - Three Column Layout */
.pbt-about {
  padding: 40px 0 60px;
}

.pbt-about-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 40px;
  align-items: center;
}

.pbt-about-left p,
.pbt-about-right p {
  margin-bottom: 20px;
  text-align: justify;
}

.pbt-about-left p:last-child,
.pbt-about-right p:last-child {
  margin-bottom: 0;
}

.pbt-about-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.pbt-oval-image {
  width: 400px;
  height: 550px;
  border-radius: 50% / 35%;
  overflow: hidden;
  flex-shrink: 0;
}

.pbt-oval-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Documents Section */
.pbt-documents {
  padding: 20px 0 84px;
  background: var(--color-white);
}

.pbt-documents h2 {
  text-align: center;
  color: var(--color-dark);
  margin: 0;
  margin-bottom: 40px;
}

.pbt-grade-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.pbt-grade-card {
  background: var(--color-bg);
  border-radius: 20px;
  padding: 28px 24px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pbt-grade-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.08);
}

.pbt-grade-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.pbt-grade-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
  flex-shrink: 0;
}

.pbt-grade-name {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-dark);
}

.pbt-grade-divider {
  height: 1px;
  background: var(--color-border);
  margin-bottom: 20px;
}

.pbt-grade-buttons {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.pbt-doc-btn {
  display: block;
  padding: 14px 20px;
  background: rgba(0,0,0,0.04);
  border-radius: 30px;
  font-weight: 500;
  color: var(--color-text);
  text-align: center;
  text-decoration: none;
  transition: all 0.3s ease;
}

.pbt-doc-btn:hover {
  background: rgba(0,0,0,0.08);
  color: var(--color-dark);
}

/* Common Documentation Section */
.pbt-common-docs {
  padding: 0;
}

.pbt-common-wrapper {
  margin-top: 40px;
  background: var(--color-bg);
  border-radius: 20px;
  padding: 32px;
}

.pbt-common-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}

.pbt-common-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--color-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-white);
}

.pbt-common-header h3 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-dark);
}

.pbt-common-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.pbt-common-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 22px;
  background: var(--color-white);
  border-radius: 14px;
  transition: box-shadow 0.3s ease;
}

.pbt-common-card:hover {
  box-shadow: 0 4px 15px rgba(0,0,0,0.06);
}

.pbt-common-card-content {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pbt-common-title {
  font-weight: 400;
  color: var(--color-text-light);
}

.pbt-common-label {
  font-weight: 600;
  color: var(--color-dark);
}

.pbt-common-download {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text);
  transition: color 0.3s ease;
  flex-shrink: 0;
}

.pbt-common-download:hover {
  color: var(--color-primary);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 1024px) {
  .pbt-grade-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pbt-about-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .pbt-about-center {
    order: -1;
  }

  .pbt-oval-image {
    width: 240px;
    height: 320px;
  }
}

@media (max-width: 768px) {
  .pbt-grade-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .pbt-oval-image {
    width: 200px;
    height: 280px;
  }

}

@media (max-width: 550px) {

   .pbt-common-grid {
    grid-template-columns: 1fr;
  }
   .pbt-about-grid {
    grid-template-columns: 1fr;
  }

  .pbt-grade-grid {
    grid-template-columns: 1fr;
  }
}