/* ProTechTrader soldering tutorial (information_id=51). */
.ptt-solder-guide {
  --ptt-solder-ink: #172033;
  --ptt-solder-muted: #526077;
  --ptt-solder-border: #d9e2ec;
  --ptt-solder-surface: #ffffff;
  --ptt-solder-soft: #f4f8fb;
  --ptt-solder-primary: #0b6f75;
  --ptt-solder-primary-dark: #07545a;
  --ptt-solder-accent: #d97706;
  --ptt-solder-warning: #9a3412;
  color: var(--ptt-solder-ink);
  font-family: "Fira Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  font-size: 16px;
  line-height: 1.7;
}

.protech-info-content .ptt-solder-guide h1,
.protech-info-content .ptt-solder-guide h2,
.protech-info-content .ptt-solder-guide h3,
.protech-info-content .ptt-solder-guide p,
.protech-info-content .ptt-solder-guide ul,
.protech-info-content .ptt-solder-guide ol {
  margin-top: 0;
}

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

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

.protech-info-content .ptt-solder-guide a:hover {
  color: #06474c;
}

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

.ptt-solder-hero {
  align-items: stretch;
  background: linear-gradient(135deg, #10243d 0%, #0b5660 100%);
  border-radius: 18px;
  color: #ffffff;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.55fr) minmax(260px, 0.75fr);
  overflow: hidden;
  padding: clamp(24px, 5vw, 52px);
}

.ptt-solder-eyebrow,
.ptt-solder-step-label,
.ptt-solder-card-label {
  color: var(--ptt-solder-primary);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.11em;
  margin-bottom: 8px;
  text-transform: uppercase;
}

.ptt-solder-hero .ptt-solder-eyebrow,
.ptt-solder-hero .ptt-solder-card-label {
  color: #f9c978;
}

.protech-info-content .ptt-solder-guide .ptt-solder-hero h1 {
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 3.65rem);
  margin-bottom: 18px;
  max-width: 15ch;
}

.ptt-solder-lede {
  color: #e4eef4;
  font-size: clamp(1.04rem, 2vw, 1.25rem);
  max-width: 62ch;
}

.ptt-solder-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-button {
  align-items: center;
  border: 2px solid transparent;
  border-radius: 9px;
  display: inline-flex;
  font-weight: 800;
  justify-content: center;
  min-height: 46px;
  padding: 10px 18px;
  text-align: center;
  text-decoration: none;
}

.protech-info-content .ptt-solder-guide .ptt-solder-button-primary {
  background: #f4a62a;
  color: #2b1b02;
}

.protech-info-content .ptt-solder-guide .ptt-solder-button-primary:hover {
  background: #ffc35d;
  color: #201300;
}

.protech-info-content .ptt-solder-guide .ptt-solder-button-secondary {
  background: transparent;
  border-color: #9bd5d8;
  color: #ffffff;
}

.protech-info-content .ptt-solder-guide .ptt-solder-button-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
}

.ptt-solder-summary {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 24px;
  margin: 28px 0 0;
}

.ptt-solder-summary div {
  border-left: 2px solid #56b5ba;
  padding-left: 10px;
}

.ptt-solder-summary dt {
  color: #b9d8df;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.ptt-solder-summary dd {
  color: #ffffff;
  font-weight: 700;
  margin: 2px 0 0;
}

.ptt-solder-first-joint {
  align-self: center;
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 14px;
  padding: 22px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-first-joint h2 {
  color: #ffffff;
  font-size: 1.45rem;
  margin-bottom: 14px;
}

.ptt-solder-first-joint ol {
  color: #eaf4f6;
  margin-bottom: 0;
  padding-left: 22px;
}

.ptt-solder-byline {
  align-items: center;
  border-bottom: 1px solid var(--ptt-solder-border);
  color: var(--ptt-solder-muted);
  display: flex;
  flex-wrap: wrap;
  font-size: 0.88rem;
  gap: 6px 20px;
  justify-content: space-between;
  padding: 14px 4px;
}

.ptt-solder-byline p {
  margin-bottom: 0;
}

.ptt-solder-toc {
  background: var(--ptt-solder-soft);
  border: 1px solid var(--ptt-solder-border);
  border-radius: 14px;
  margin: 28px 0 0;
  padding: 22px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-toc h2 {
  font-size: 1.3rem;
  margin-bottom: 14px;
}

.ptt-solder-toc ol {
  display: grid;
  gap: 8px 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  list-style-position: inside;
  margin-bottom: 0;
  padding: 0;
}

.protech-info-content .ptt-solder-guide .ptt-solder-toc a {
  display: inline-flex;
  min-height: 44px;
  padding: 8px 0;
}

.ptt-solder-section {
  border-bottom: 1px solid var(--ptt-solder-border);
  padding: clamp(44px, 7vw, 76px) 0;
  scroll-margin-top: 24px;
}

.ptt-solder-section-heading {
  max-width: 760px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-section-heading h2 {
  font-size: clamp(1.75rem, 3.8vw, 2.55rem);
  margin-bottom: 14px;
}

.ptt-solder-section-heading > p:last-child {
  color: var(--ptt-solder-muted);
  font-size: 1.06rem;
}

.ptt-solder-warning {
  background: #fff7ed;
  border: 1px solid #fdba74;
  border-left: 5px solid var(--ptt-solder-warning);
  border-radius: 10px;
  margin-top: 24px;
  padding: 22px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-warning h3 {
  color: #7c2d12;
  font-size: 1.25rem;
}

.ptt-solder-warning ul,
.ptt-solder-check-card ul,
.ptt-solder-quality-grid ul {
  margin-bottom: 0;
  padding-left: 22px;
}

.ptt-solder-warning li + li,
.ptt-solder-check-card li + li,
.ptt-solder-quality-grid li + li {
  margin-top: 7px;
}

.ptt-solder-source-note {
  color: var(--ptt-solder-muted);
  font-size: 0.9rem;
  margin-top: 18px;
}

.ptt-solder-checklist-grid,
.ptt-solder-product-grid,
.ptt-solder-principles,
.ptt-solder-quality-grid {
  display: grid;
  gap: 18px;
  margin-top: 26px;
}

.ptt-solder-checklist-grid,
.ptt-solder-quality-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.ptt-solder-product-grid,
.ptt-solder-principles {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.ptt-solder-check-card,
.ptt-solder-product-card,
.ptt-solder-principles article,
.ptt-solder-quality-grid article {
  background: var(--ptt-solder-surface);
  border: 1px solid var(--ptt-solder-border);
  border-radius: 12px;
  padding: 22px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-check-card h3,
.protech-info-content .ptt-solder-guide .ptt-solder-product-card h3,
.protech-info-content .ptt-solder-guide .ptt-solder-principles h3,
.protech-info-content .ptt-solder-guide .ptt-solder-quality-grid h3 {
  font-size: 1.2rem;
  margin-bottom: 10px;
}

.ptt-solder-choice {
  background: #eef8f8;
  border: 1px solid #a9d7d9;
  border-radius: 14px;
  margin-top: 26px;
  padding: 24px;
}

.ptt-solder-alloy-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 18px;
}

.ptt-solder-alloy-grid div {
  background: #ffffff;
  border-radius: 9px;
  display: grid;
  gap: 4px;
  padding: 16px;
}

.ptt-solder-alloy-grid strong {
  color: var(--ptt-solder-primary-dark);
  font-size: 1.08rem;
}

.ptt-solder-alloy-grid span {
  color: var(--ptt-solder-muted);
  font-size: 0.88rem;
}

.ptt-solder-product-card {
  display: flex;
  flex-direction: column;
}

.ptt-solder-product-card p:not(.ptt-solder-card-label) {
  color: var(--ptt-solder-muted);
  flex-grow: 1;
}

.protech-info-content .ptt-solder-guide .ptt-solder-product-card a {
  align-items: center;
  border-top: 1px solid var(--ptt-solder-border);
  display: flex;
  min-height: 44px;
  padding-top: 12px;
}

.ptt-solder-principles article {
  border-top: 4px solid #5aaeb2;
}

.ptt-solder-steps {
  counter-reset: solder-step;
  display: grid;
  gap: 16px;
  list-style: none;
  margin: 28px 0 0;
  padding: 0;
}

.ptt-solder-steps > li {
  align-items: flex-start;
  background: var(--ptt-solder-soft);
  border: 1px solid var(--ptt-solder-border);
  border-radius: 12px;
  display: grid;
  gap: 16px;
  grid-template-columns: 48px minmax(0, 1fr);
  padding: 20px;
}

.ptt-solder-steps > li > div {
  align-items: center;
  background: var(--ptt-solder-primary);
  border-radius: 50%;
  color: #ffffff;
  display: flex;
  font-weight: 800;
  height: 42px;
  justify-content: center;
  width: 42px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-steps h3 {
  font-size: 1.18rem;
  margin-bottom: 5px;
}

.ptt-solder-steps p {
  color: var(--ptt-solder-muted);
  margin-bottom: 0;
}

.ptt-solder-quality-good {
  border-top: 4px solid #16835c;
}

.ptt-solder-quality-bad {
  border-top: 4px solid #b84328;
}

.ptt-solder-meter-note {
  background: #eff6ff;
  border: 1px solid #93c5fd;
  border-radius: 12px;
  margin-top: 20px;
  padding: 22px;
}

.ptt-solder-table-wrap {
  margin-top: 26px;
  overflow-x: auto;
}

.ptt-solder-table {
  border-collapse: collapse;
  min-width: 720px;
  width: 100%;
}

.ptt-solder-table th,
.ptt-solder-table td {
  border: 1px solid var(--ptt-solder-border);
  padding: 14px;
  text-align: left;
  vertical-align: top;
}

.ptt-solder-table thead th {
  background: #173148;
  color: #ffffff;
}

.ptt-solder-table tbody th {
  background: #eef5f7;
  color: var(--ptt-solder-ink);
  width: 20%;
}

.ptt-solder-practice-list {
  background: var(--ptt-solder-soft);
  border-radius: 12px;
  margin-top: 24px;
  padding: 22px 22px 22px 44px;
}

.ptt-solder-practice-list li + li {
  margin-top: 10px;
}

.ptt-solder-next-actions {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 24px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-next-actions a {
  background: #ffffff;
  border: 1px solid var(--ptt-solder-border);
  border-radius: 10px;
  display: grid;
  gap: 5px;
  min-height: 110px;
  padding: 18px;
  text-decoration: none;
}

.ptt-solder-next-actions span {
  color: var(--ptt-solder-muted);
  font-size: 0.88rem;
  font-weight: 400;
}

.ptt-solder-faq-list {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.ptt-solder-faq-list section {
  background: #ffffff;
  border: 1px solid var(--ptt-solder-border);
  border-left: 4px solid var(--ptt-solder-primary);
  border-radius: 10px;
  padding: 20px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-faq-list h3 {
  font-size: 1.12rem;
  margin-bottom: 7px;
}

.ptt-solder-faq-list p {
  color: var(--ptt-solder-muted);
  margin-bottom: 0;
}

.ptt-solder-conversion {
  align-items: center;
  background: #113b42;
  border-radius: 16px;
  color: #ffffff;
  display: grid;
  gap: 24px;
  grid-template-columns: minmax(0, 1.35fr) minmax(260px, 0.65fr);
  margin-top: 54px;
  padding: clamp(24px, 5vw, 40px);
}

.protech-info-content .ptt-solder-guide .ptt-solder-conversion h2 {
  color: #ffffff;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 10px;
}

.ptt-solder-conversion p:not(.ptt-solder-step-label) {
  color: #d7e7e9;
  margin-bottom: 0;
}

.ptt-solder-conversion .ptt-solder-actions {
  flex-direction: column;
  margin-top: 0;
}

.ptt-solder-references {
  color: var(--ptt-solder-muted);
  font-size: 0.88rem;
  padding: 34px 0 4px;
}

.protech-info-content .ptt-solder-guide .ptt-solder-references h2 {
  font-size: 1.15rem;
  margin-bottom: 10px;
}

.ptt-solder-references ul {
  margin-bottom: 0;
  padding-left: 20px;
}

@media (max-width: 900px) {
  .ptt-solder-hero,
  .ptt-solder-conversion {
    grid-template-columns: 1fr;
  }

  .ptt-solder-product-grid,
  .ptt-solder-principles,
  .ptt-solder-next-actions {
    grid-template-columns: 1fr;
  }

  .ptt-solder-next-actions a {
    min-height: 0;
  }
}

@media (max-width: 640px) {
  .ptt-solder-guide {
    font-size: 15px;
  }

  .ptt-solder-hero {
    border-radius: 12px;
    margin-left: -8px;
    margin-right: -8px;
    padding: 24px 18px;
  }

  .ptt-solder-actions,
  .ptt-solder-summary {
    flex-direction: column;
  }

  .protech-info-content .ptt-solder-guide .ptt-solder-button {
    width: 100%;
  }

  .ptt-solder-toc ol,
  .ptt-solder-checklist-grid,
  .ptt-solder-quality-grid,
  .ptt-solder-alloy-grid {
    grid-template-columns: 1fr;
  }

  .ptt-solder-toc,
  .ptt-solder-warning,
  .ptt-solder-choice,
  .ptt-solder-check-card,
  .ptt-solder-product-card,
  .ptt-solder-principles article,
  .ptt-solder-quality-grid article,
  .ptt-solder-meter-note {
    padding: 18px;
  }

  .ptt-solder-steps > li {
    grid-template-columns: 38px minmax(0, 1fr);
    padding: 16px;
  }

  .ptt-solder-steps > li > div {
    height: 34px;
    width: 34px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .ptt-solder-guide *,
  .ptt-solder-guide *::before,
  .ptt-solder-guide *::after {
    scroll-behavior: auto;
    transition-duration: 0.01ms;
  }
}

@media print {
  .ptt-solder-hero,
  .ptt-solder-conversion {
    background: #ffffff;
    border: 1px solid #999999;
    color: #000000;
  }

  .protech-info-content .ptt-solder-guide .ptt-solder-hero h1,
  .protech-info-content .ptt-solder-guide .ptt-solder-conversion h2,
  .ptt-solder-lede,
  .ptt-solder-conversion p:not(.ptt-solder-step-label) {
    color: #000000;
  }

  .ptt-solder-actions {
    display: none;
  }
}