:root {
  --td-breadcrumb-pad: clamp(16px, 2.5vh, 24px);
  --td-main-pad: clamp(40px, 6vh, 80px);
  --td-main-max: 1400px;
  --td-gap: clamp(32px, 5vw, 60px);
  --td-sidebar-w: clamp(280px, 28vw, 360px);

  --td-hero-title-size: var(--fs-title-lg);
  --td-hero-subtitle-size: var(--fs-content);

  --td-section-title-size: var(--fs-title-md);
  --td-text-size: var(--fs-content);
  --td-text-lh: 1.75;

  --td-major-group-title-size: var(--fs-title-md);
  --td-degree-size: var(--fs-content-sm);

  --td-research-title-size: var(--fs-content);

  --td-font-title: var(--font-title);
  --td-font-content: var(--font-content);
  --td-font-meta: var(--font-meta);
  --td-font: var(--td-font-content);
}

.training-detail-breadcrumb {
  position: relative;
  z-index: 30;
  background: #fff;
  padding: var(--td-breadcrumb-pad) 0;
}

.training-detail-breadcrumb .container-xxl {
  max-width: var(--td-main-max);
  padding-inline: clamp(20px, 4vw, 60px);
}

.training-detail-breadcrumb .breadcrumb {
  margin: 0;
  background: transparent;
  padding: 0;
  font-size: clamp(14px, 1.1vw, 16px);
  font-family: var(--td-font-meta);
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.training-detail-breadcrumb .breadcrumb-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.training-detail-breadcrumb .breadcrumb-item:first-child a {
  display: flex;
  align-items: center;
  color: var(--brand-navy);
  text-decoration: none;
  transition: color 0.2s ease;
}

.training-detail-breadcrumb .breadcrumb-item:first-child a:hover {
  color: var(--brand-orange);
}

.training-detail-breadcrumb .breadcrumb-item:first-child a svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.training-detail-breadcrumb .breadcrumb-item a {
  color: var(--brand-navy);
  text-decoration: none;
  transition: color 0.2s ease;
}

.training-detail-breadcrumb .breadcrumb-item a:hover {
  color: var(--brand-orange);
}

.training-detail-breadcrumb .breadcrumb-item.active {
  color: #6b7280;
}

.training-detail-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: #9ca3af;
  padding: 0;
  margin: 0;
}

.training-detail-hero {
  position: relative;
  z-index: 30;
  min-height: clamp(400px, 50vh, 600px);
  display: flex;
  align-items: center;
  overflow: hidden;
}

.training-detail-hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../../assets/images/placeholders/hero-default.jpg');
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  z-index: 1;
}

.training-detail-hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.4);
  z-index: 2;
}

.training-detail-hero .container-xxl {
  position: relative;
  z-index: 3;
  max-width: var(--td-main-max);
  padding-inline: clamp(20px, 4vw, 60px);
}

.training-detail-hero-content {
  max-width: 800px;
  padding: clamp(40px, 8vh, 80px) 0;
}

.training-detail-hero-title {
  margin: 0 0 clamp(20px, 3vh, 28px);
  font-size: var(--td-hero-title-size);
  font-weight: 700;
  line-height: 1.1;
  color: #fff;
  font-family: var(--td-font-title);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.training-detail-hero-accent {
  width: clamp(60px, 8vw, 100px);
  height: 4px;
  background: var(--brand-orange);
  margin: 0 0 clamp(24px, 4vh, 32px);
}

.training-detail-hero-tagline {
  margin: 0;
  font-size: var(--td-hero-subtitle-size);
  font-weight: 400;
  line-height: 1.5;
  color: #fff;
  font-family: var(--td-font-content);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
  max-width: 700px;
}

.training-detail {
  position: relative;
  z-index: 30;
  background: #fff;

  padding: 0 0 var(--td-main-pad);
}

.training-detail .container-xxl {
  max-width: var(--td-main-max);
  padding-inline: clamp(20px, 4vw, 60px);
}

.training-detail-layout {
  display: grid;
  grid-template-columns: clamp(250px, 25vw, 320px) 1fr;
  gap: clamp(40px, 6vw, 80px);
  align-items: start;
  position: relative;
}

.training-detail-sidebar-nav {
  position: sticky;
  top: calc(var(--header-h) + 20px);
}

.training-detail-sidebar-title {
  margin: 0 0 clamp(24px, 4vh, 32px);
  font-size: var(--td-major-group-title-size);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--brand-navy);
  font-family: var(--td-font-title);
}

.training-detail-nav-tabs {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.training-detail-nav-tab {
  display: block;
  width: 100%;
  padding: clamp(14px, 2vh, 18px) clamp(16px, 2vw, 20px);
  background: transparent;
  border: none;
  border-left: 3px solid transparent;
  text-align: left;
  font-size: clamp(15px, 1.3vw, 17px);
  font-weight: 500;
  color: #4b5563;
  font-family: var(--td-font);
  cursor: pointer;
  transition: all 0.2s ease;
  margin: 0;
}

.training-detail-nav-tab:hover {
  background: #f9fafb;
  color: var(--brand-navy);
}

.training-detail-nav-tab.active {
  background: #f9fafb;
  border-left-color: var(--brand-orange);
  color: var(--brand-navy);
  font-weight: 600;
}

.training-detail-main-content {
  min-width: 0;
}

.training-detail-tab-content {
  display: none;
}

.training-detail-tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.training-detail-main-title {
  margin: 0 0 clamp(32px, 5vh, 48px);
  font-size: var(--td-hero-title-size);
  font-weight: 700;
  line-height: 1.2;
  color: var(--brand-navy);
  font-family: var(--td-font);
}

.training-detail-content-wrapper {
  display: grid;
  grid-template-columns: 1fr clamp(300px, 28vw, 380px);
  gap: clamp(40px, 6vw, 60px);
  align-items: start;
}

.training-detail-text-content {
  min-width: 0;
}

.training-detail-description {
  margin: 0 0 clamp(20px, 3vh, 28px);
  font-size: var(--td-text-size);
  line-height: var(--td-text-lh);
  color: #1f2937;
  font-family: var(--td-font);
}

.training-detail-description p {
  margin: 0 0 clamp(16px, 2.5vh, 20px);
  font-size: var(--td-text-size);
  line-height: var(--td-text-lh);
  color: #1f2937;
}

.training-detail-description p:last-child {
  margin-bottom: 0;
}

.training-detail-description ul,
.training-detail-description ol {
  margin: 0 0 clamp(16px, 2.5vh, 20px);
  padding-left: clamp(20px, 3vw, 28px);
}

.training-detail-description li {
  margin-bottom: clamp(8px, 1.5vh, 12px);
  font-size: var(--td-text-size);
  line-height: var(--td-text-lh);
  color: #1f2937;
}

.training-detail-description h1,
.training-detail-description h2,
.training-detail-description h3,
.training-detail-description h4,
.training-detail-description h5,
.training-detail-description h6 {
  margin: 0 0 clamp(16px, 2.5vh, 20px);
  font-weight: 700;
  color: var(--brand-navy);
  font-family: var(--td-font);
}

.training-detail-description h1 { font-size: clamp(24px, 3vw, 32px); }
.training-detail-description h2 { font-size: clamp(22px, 2.8vw, 28px); }
.training-detail-description h3 { font-size: clamp(20px, 2.5vw, 24px); }
.training-detail-description h4 { font-size: clamp(18px, 2.2vw, 22px); }

.training-detail-description strong,
.training-detail-description b {
  font-weight: 700;
  color: var(--brand-navy);
}

.training-detail-description a {
  color: var(--brand-orange);
  text-decoration: none;
  transition: color 0.2s ease;
}

.training-detail-description a:hover {
  color: var(--brand-navy);
  text-decoration: underline;
}

.training-detail-description img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin: clamp(16px, 2.5vh, 20px) 0;
}

.training-detail-description:last-child {
  margin-bottom: 0;
}

.training-detail-image-content {
  position: sticky;
  top: calc(var(--header-h) + 20px);
}

.training-detail-image-content img {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
  object-fit: cover;
}

@media (max-width: 991.98px) {
  .training-detail-hero {
    min-height: clamp(350px, 45vh, 500px);
  }

  .training-detail-breadcrumb {
    padding: clamp(12px, 2vh, 16px) 0;
  }

  .training-detail-hero-content {
    padding: clamp(40px, 8vh, 60px) 0;
  }

  .training-detail-hero-title {
    font-size: clamp(32px, 5vw, 48px);
  }

  .training-detail-hero-tagline {
    font-size: clamp(16px, 2vw, 20px);
  }

  .training-detail-layout {
    grid-template-columns: 1fr;
    gap: clamp(32px, 5vh, 48px);
  }

  .training-detail-sidebar-nav {
    position: static;
  }

  .training-detail-nav-tabs {
    flex-direction: row;
    overflow-x: auto;
    gap: 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    padding-bottom: 0;
  }

  .training-detail-nav-tab {
    border-left: none;
    border-bottom: 3px solid transparent;
    white-space: nowrap;
    padding: clamp(12px, 2vh, 16px) clamp(16px, 3vw, 24px);
  }

  .training-detail-nav-tab.active {
    border-left-color: transparent;
    border-bottom-color: var(--brand-orange);
  }

  .training-detail-content-wrapper {
    grid-template-columns: 1fr;
    gap: clamp(32px, 5vh, 48px);
  }

  .training-detail-image-content {
    position: static;
    order: -1;
  }
}

@media (max-width: 575.98px) {
  .training-detail-hero {
    min-height: clamp(300px, 40vh, 400px);
  }

  .training-detail-breadcrumb {
    padding: clamp(10px, 1.5vh, 14px) 0;
  }

  .training-detail-hero-content {
    padding: clamp(30px, 6vh, 40px) 0;
  }

  .training-detail-hero-title {
    font-size: clamp(28px, 4vw, 36px);
    margin-bottom: clamp(16px, 2vh, 20px);
  }

  .training-detail-hero-accent {
    width: clamp(50px, 10vw, 80px);
    height: 3px;
    margin-bottom: clamp(20px, 3vh, 24px);
  }

  .training-detail-hero-tagline {
    font-size: clamp(15px, 1.8vw, 18px);
  }

  .training-detail-breadcrumb .breadcrumb {
    font-size: clamp(12px, 1vw, 14px);
  }

  .training-detail-nav-tabs {
    flex-wrap: wrap;
  }

  .training-detail-nav-tab {
    flex: 1 1 auto;
    min-width: 0;
    font-size: clamp(14px, 1.2vw, 16px);
  }

  .training-detail-main-title {
    font-size: clamp(28px, 4vw, 40px);
  }
}