/* Blueprint To Progress — Article 8: Professional Development
   FINAL PAGE-SPECIFIC CSS
   Production URL:
   /career/professional-development/

   Calibrated against the supplied Article 7 reference and Article 8
   Desktop / 768px Tablet / 375px Mobile screenshots.

   IMPORTANT:
   - This stylesheet is intentionally page-scoped.
   - It does not change the global header/navigation.
   - It does not change the global site font family.
   - It establishes one consistent article geometry at all breakpoints.
*/

/* =========================================================
   1. ARTICLE DESIGN TOKENS
   ========================================================= */

.btp-article--professional-development {
  --btp-pd-max-width: 1180px;

  /* Horizontal page gutters */
  --btp-pd-desktop-gutter: 40px;
  --btp-pd-tablet-gutter: 46px;
  --btp-pd-mobile-gutter: 16px;

  /* Typography */
  --btp-pd-body-size: 1rem;
  --btp-pd-body-line-height: 1.78;
  --btp-pd-mobile-line-height: 1.70;

  --btp-pd-h1-size-min: 2.25rem;
  --btp-pd-h1-size-fluid: 4vw;
  --btp-pd-h1-size-max: 3.35rem;
  --btp-pd-h1-line-height: 1.12;
  --btp-pd-h1-weight: 750;

  --btp-pd-h2-size-min: 1.75rem;
  --btp-pd-h2-size-fluid: 2.8vw;
  --btp-pd-h2-size-max: 2.25rem;
  --btp-pd-h2-line-height: 1.20;
  --btp-pd-h2-weight: 720;

  --btp-pd-h3-size-min: 1.25rem;
  --btp-pd-h3-size-fluid: 2vw;
  --btp-pd-h3-size-max: 1.75rem;
  --btp-pd-h3-line-height: 1.30;
  --btp-pd-h3-weight: 700;

  --btp-pd-strong-weight: 720;
  --btp-pd-kicker-size: .78rem;
  --btp-pd-kicker-weight: 800;

  /* Vertical rhythm */
  --btp-pd-paragraph-gap: 18px;
  --btp-pd-h1-bottom: 20px;
  --btp-pd-h2-top: 58px;
  --btp-pd-h2-bottom: 18px;
  --btp-pd-h3-top: 34px;
  --btp-pd-h3-bottom: 12px;

  /* Components */
  --btp-pd-radius: 14px;

  color: #17202a;
  font-family: inherit;
  font-size: var(--btp-pd-body-size);
  line-height: var(--btp-pd-body-line-height);
  box-sizing: border-box;
}

.btp-article--professional-development *,
.btp-article--professional-development *::before,
.btp-article--professional-development *::after {
  box-sizing: border-box;
}

/* =========================================================
   2. CONTENT WIDTH / WRAPPING
   ========================================================= */

.btp-article--professional-development > article {
  width: min(
    var(--btp-pd-max-width),
    calc(100% - (2 * var(--btp-pd-desktop-gutter)))
  );
  max-width: var(--btp-pd-max-width);
  margin-inline: auto;
}

.btp-article--professional-development .btp-article-header,
.btp-article--professional-development .btp-article-content {
  width: 100%;
  max-width: none;
  margin-inline: 0;
  padding-inline: 0;
}

/* =========================================================
   3. HEADER / KICKER / H1
   ========================================================= */

.btp-article--professional-development .btp-article-header {
  margin-bottom: 2rem;
}

.btp-article--professional-development .btp-article-kicker {
  margin: 0 0 .65rem;
  font-size: var(--btp-pd-kicker-size);
  font-weight: var(--btp-pd-kicker-weight);
  line-height: 1.2;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.btp-article--professional-development h1,
.btp-article--professional-development h2,
.btp-article--professional-development h3 {
  color: #17202a;
  letter-spacing: -0.015em;
  overflow-wrap: normal;
  word-break: normal;
  hyphens: none;
}

.btp-article--professional-development h1 {
  margin: 0 0 var(--btp-pd-h1-bottom);
  font-size: clamp(
    var(--btp-pd-h1-size-min),
    var(--btp-pd-h1-size-fluid),
    var(--btp-pd-h1-size-max)
  );
  line-height: var(--btp-pd-h1-line-height);
  font-weight: var(--btp-pd-h1-weight);
}

/* =========================================================
   4. BODY COPY / LISTS
   ========================================================= */

.btp-article--professional-development p {
  margin: 0 0 var(--btp-pd-paragraph-gap);
  font-size: inherit;
  line-height: inherit;
  font-weight: 400;
}

.btp-article--professional-development .btp-article-lead {
  margin: 0 0 var(--btp-pd-paragraph-gap);
  font-size: inherit;
  line-height: inherit;
  font-weight: 400;
}

.btp-article--professional-development strong {
  font-weight: var(--btp-pd-strong-weight);
}

.btp-article--professional-development ul,
.btp-article--professional-development ol {
  margin: 0 0 22px;
  padding-left: 1.35rem;
}

.btp-article--professional-development li {
  margin-bottom: 7px;
}

.btp-article--professional-development a {
  text-underline-offset: 2px;
}

/* =========================================================
   5. H2 / H3 HIERARCHY
   ========================================================= */

.btp-article--professional-development .btp-article-content h2 {
  margin: var(--btp-pd-h2-top) 0 var(--btp-pd-h2-bottom);
  font-size: clamp(
    var(--btp-pd-h2-size-min),
    var(--btp-pd-h2-size-fluid),
    var(--btp-pd-h2-size-max)
  );
  line-height: var(--btp-pd-h2-line-height);
  font-weight: var(--btp-pd-h2-weight);
  scroll-margin-top: 100px;
}

.btp-article--professional-development .btp-article-content h3 {
  margin: var(--btp-pd-h3-top) 0 var(--btp-pd-h3-bottom);
  font-size: clamp(
    var(--btp-pd-h3-size-min),
    var(--btp-pd-h3-size-fluid),
    var(--btp-pd-h3-size-max)
  );
  line-height: var(--btp-pd-h3-line-height);
  font-weight: var(--btp-pd-h3-weight);
  scroll-margin-top: 100px;
}

/* =========================================================
   6. TABLE OF CONTENTS
   ========================================================= */

.btp-article--professional-development .btp-toc {
  margin: 2rem 0 2.5rem;
  padding: 1.35rem 1.5rem;
  border: 1px solid rgba(0, 0, 0, .10);
  border-radius: var(--btp-pd-radius);
  background: rgba(0, 0, 0, .025);
}

.btp-article--professional-development .btp-toc h2 {
  margin: 0 0 .8rem;
  font-size: 1.15rem;
  line-height: 1.2;
  font-weight: 720;
}

.btp-article--professional-development .btp-toc ul {
  margin: 0;
  padding-left: 1.2rem;
  columns: 2;
  column-gap: 2.2rem;
}

.btp-article--professional-development .btp-toc li {
  break-inside: avoid;
  margin-bottom: .45rem;
}

.btp-article--professional-development .btp-toc a {
  text-decoration-thickness: 1px;
  text-underline-offset: 2px;
}

/* =========================================================
   7. ARTICLE IMAGES
   ========================================================= */

.btp-article--professional-development .btp-article-image {
  width: 100%;
  margin: 38px 0 42px;
}

.btp-article--professional-development .btp-article-image img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--btp-pd-radius);
}

.btp-article--professional-development .btp-article-image figcaption {
  margin-top: 9px;
  font-size: .86rem;
  line-height: 1.5;
  opacity: .72;
  text-align: center;
}

/* =========================================================
   8. BLOCKQUOTES
   ========================================================= */

.btp-article--professional-development blockquote {
  margin: 22px 0;
  padding: 18px 22px;
  border-left: 4px solid currentColor;
  border-radius: 0 var(--btp-pd-radius) var(--btp-pd-radius) 0;
  background: rgba(0, 0, 0, .025);
}

/* =========================================================
   9. TABLES
   ========================================================= */

.btp-article--professional-development .btp-table-wrap {
  width: 100%;
  max-width: 100%;
  margin: 24px 0 30px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.btp-article--professional-development table {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  font-size: .96rem;
}

.btp-article--professional-development th,
.btp-article--professional-development td {
  padding: 12px 14px;
  border: 1px solid rgba(0, 0, 0, .12);
  vertical-align: top;
  text-align: left;
}

.btp-article--professional-development th {
  font-weight: 700;
}

/* =========================================================
   10. TABLET — 768px REFERENCE
   ========================================================= */

@media (max-width: 900px) {
  .btp-article--professional-development > article {
    width: calc(100% - (2 * var(--btp-pd-tablet-gutter)));
    max-width: none;
  }
}

/* =========================================================
   11. MOBILE — 375px REFERENCE
   ========================================================= */

@media (max-width: 700px) {
  .btp-article--professional-development > article {
    width: calc(100% - (2 * var(--btp-pd-mobile-gutter)));
    max-width: none;
  }
}

@media (max-width: 760px) {
  .btp-article--professional-development {
    line-height: var(--btp-pd-mobile-line-height);
  }

  .btp-article--professional-development .btp-article-lead {
    line-height: var(--btp-pd-mobile-line-height);
  }

  .btp-article--professional-development .btp-toc ul {
    columns: 1;
  }

  .btp-article--professional-development .btp-article-image {
    margin-top: 28px;
    margin-bottom: 32px;
  }

  .btp-article--professional-development .btp-article-content h2 {
    margin-top: 44px;
  }

  .btp-article--professional-development th,
  .btp-article--professional-development td {
    padding: .65rem .7rem;
  }
}