/* Shared presentation for ProTechTrader electronics learning guides. */
.ptt-learning-guide {
  --ptt-learn-ink: #172033;
  --ptt-learn-muted: #536176;
  --ptt-learn-border: #d9e3e8;
  --ptt-learn-soft: #f3f8f8;
  --ptt-learn-primary: #0b6f75;
  --ptt-learn-primary-dark: #07545a;
  --ptt-learn-accent: #d97706;
  color: var(--ptt-learn-ink);
  font-family: "Fira Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

.protech-info-content .ptt-learning-guide h1,
.protech-info-content .ptt-learning-guide h2,
.protech-info-content .ptt-learning-guide h3 {
  border: 0;
  color: inherit;
  font-family: "Fredoka", "Fira Sans", sans-serif;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-top: 0;
  padding: 0;
}

.protech-info-content .ptt-learning-guide p,
.protech-info-content .ptt-learning-guide ul,
.protech-info-content .ptt-learning-guide ol {
  margin-top: 0;
}

.protech-info-content .ptt-learning-guide a {
  color: var(--ptt-learn-primary-dark);
  text-underline-offset: 0.2em;
}

.protech-info-content .ptt-learning-guide a:focus-visible,
.protech-info-content .ptt-learning-guide summary:focus-visible {
  border-radius: 4px;
  outline: 3px solid #f6b84d;
  outline-offset: 3px;
}

.ptt-learn-hero {
  background: #113b4a;
  border-radius: 18px;
  color: #ffffff;
  display: grid;
  gap: 28px;
  grid-template-columns: minmax(0, 1.5fr) minmax(240px, 0.7fr);
  padding: clamp(24px, 5vw, 52px);
}

.ptt-learn-eyebrow,
.ptt-learn-label {
  color: var(--ptt-learn-primary);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.ptt-learn-hero .ptt-learn-eyebrow {
  color: #f7c66e;
}

.protech-info-content .ptt-learning-guide .ptt-learn-hero h1 {
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: 18px;
  max-width: 17ch;
}

.ptt-learn-hero p {
  color: #e4eef1;
  font-size: clamp(1.02rem, 2vw, 1.2rem);
  max-width: 62ch;
}

.ptt-learn-hero-card {
  align-self: stretch;
  background: #f4fbfa;
  border-radius: 12px;
  color: var(--ptt-learn-ink);
  padding: 20px;
}

.ptt-learn-hero-card strong {
  color: var(--ptt-learn-primary-dark);
  display: block;
  font-family: "Fredoka", "Fira Sans", sans-serif;
  font-size: 1.08rem;
  margin-bottom: 10px;
}

.ptt-learn-hero-card ul {
  margin-bottom: 0;
  padding-left: 20px;
}

.ptt-learn-byline {
  color: var(--ptt-learn-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.88rem;
  gap: 6px 18px;
  margin: 14px 0 26px;
}

.ptt-learn-toc {
  background: var(--ptt-learn-soft);
  border: 1px solid var(--ptt-learn-border);
  border-radius: 12px;
  margin-bottom: 12px;
  padding: 20px;
}

.ptt-learn-toc strong {
  display: block;
  margin-bottom: 10px;
}

.ptt-learn-toc ol {
  columns: 2;
  margin-bottom: 0;
  padding-left: 22px;
}

.ptt-learn-toc li {
  break-inside: avoid;
  margin-bottom: 7px;
}

.ptt-learn-section {
  border-top: 1px solid var(--ptt-learn-border);
  padding: clamp(34px, 6vw, 62px) 0;
  scroll-margin-top: 24px;
}

.protech-info-content .ptt-learning-guide .ptt-learn-section h2 {
  font-size: clamp(1.55rem, 3vw, 2.25rem);
  margin-bottom: 12px;
}

.protech-info-content .ptt-learning-guide .ptt-learn-section h3 {
  font-size: 1.15rem;
  margin: 22px 0 8px;
}

.ptt-learn-intro {
  color: var(--ptt-learn-muted);
  font-size: 1.05rem;
  max-width: 72ch;
}

.ptt-learn-callout {
  background: #eaf7f5;
  border-left: 4px solid var(--ptt-learn-primary);
  border-radius: 0 10px 10px 0;
  margin: 22px 0;
  padding: 16px 18px;
}

.ptt-learn-warning {
  background: #fff6e8;
  border: 1px solid #f0c883;
  border-left: 5px solid var(--ptt-learn-accent);
  border-radius: 10px;
  margin: 22px 0;
  padding: 18px;
}

.ptt-learn-grid,
.ptt-learn-product-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 22px 0;
}

.ptt-learn-card,
.ptt-learn-product {
  background: #ffffff;
  border: 1px solid var(--ptt-learn-border);
  border-radius: 11px;
  padding: 18px;
}

.ptt-learn-card h3,
.ptt-learn-product strong {
  display: block;
  margin: 0 0 7px !important;
}

.ptt-learn-card p,
.ptt-learn-product p {
  color: var(--ptt-learn-muted);
  font-size: 0.94rem;
  margin-bottom: 0;
}

.ptt-learn-product {
  display: flex;
  flex-direction: column;
  text-decoration: none !important;
}

.ptt-learn-product span {
  color: var(--ptt-learn-primary);
  font-size: 0.74rem;
  font-weight: 800;
  letter-spacing: 0.07em;
  margin-bottom: 6px;
  text-transform: uppercase;
}

.ptt-learn-product em {
  font-style: normal;
  font-weight: 800;
  margin-top: auto;
  padding-top: 14px;
}

.ptt-learn-steps {
  counter-reset: ptt-learn-step;
  list-style: none;
  margin: 24px 0;
  padding: 0;
}

.ptt-learn-steps li {
  background: var(--ptt-learn-soft);
  border-radius: 10px;
  counter-increment: ptt-learn-step;
  margin-bottom: 12px;
  padding: 16px 18px 16px 58px;
  position: relative;
}

.ptt-learn-steps li::before {
  align-items: center;
  background: var(--ptt-learn-primary);
  border-radius: 50%;
  color: #ffffff;
  content: counter(ptt-learn-step);
  display: flex;
  font-weight: 800;
  height: 30px;
  justify-content: center;
  left: 16px;
  position: absolute;
  top: 15px;
  width: 30px;
}

.ptt-learn-table-wrap {
  margin: 24px 0;
  overflow-x: auto;
}

.ptt-learning-guide table {
  border-collapse: collapse;
  min-width: 660px;
  width: 100%;
}

.ptt-learning-guide th,
.ptt-learning-guide td {
  border: 1px solid var(--ptt-learn-border);
  padding: 12px;
  text-align: left;
  vertical-align: top;
}

.ptt-learning-guide th {
  background: #143d4d;
  color: #ffffff;
}

.ptt-learn-faq details {
  border: 1px solid var(--ptt-learn-border);
  border-radius: 10px;
  margin-bottom: 10px;
  padding: 0 16px;
}

.ptt-learn-faq summary {
  cursor: pointer;
  font-weight: 800;
  min-height: 48px;
  padding: 14px 0;
}

.ptt-learn-faq details p {
  color: var(--ptt-learn-muted);
  padding-bottom: 14px;
}

.ptt-learn-cta {
  align-items: center;
  background: #113b4a;
  border-radius: 14px;
  color: #ffffff;
  display: flex;
  gap: 22px;
  justify-content: space-between;
  margin-top: 30px;
  padding: 24px;
}

.ptt-learn-cta p {
  color: #dcebed;
  margin-bottom: 0;
}

.protech-info-content .ptt-learning-guide .ptt-learn-button {
  background: #f4a62a;
  border-radius: 8px;
  color: #2b1b02;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 46px;
  padding: 11px 18px;
  text-align: center;
  text-decoration: none;
}

.ptt-learn-sources {
  color: var(--ptt-learn-muted);
  font-size: 0.86rem;
  margin-top: 24px;
}

@media (max-width: 820px) {
  .ptt-learn-hero,
  .ptt-learn-grid,
  .ptt-learn-product-grid {
    grid-template-columns: 1fr;
  }

  .ptt-learn-toc ol {
    columns: 1;
  }
}

@media (max-width: 520px) {
  .ptt-learning-guide {
    font-size: 15px;
  }

  .ptt-learn-hero {
    border-radius: 12px;
    padding: 24px 20px;
  }

  .ptt-learn-steps li {
    padding-left: 52px;
  }

  .ptt-learn-cta {
    align-items: stretch;
    flex-direction: column;
  }
}