@import url('https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap');
:root {
  --sta-ink: #202633;
  --sta-muted: #667085;
  --sta-soft: #f4f7fb;
  --sta-paper: #ffffff;
  --sta-line: #dce3ee;
  --sta-accent: #1f7a5c;
  --sta-accent-soft: #e7f5ef;
  --sta-blue: #315f9f;
  --sta-blue-soft: #eaf1fb;
  --sta-warn: #9a6515;
  --sta-warn-soft: #fff4df;
  --sta-shadow: 0 24px 70px rgba(32, 38, 51, 0.09);
  --sta-radius: 8px;
}

body.sta-body {
  margin: 0;
  color: var(--sta-ink);
  background:
    linear-gradient(180deg, #f7f9fc 0, #eef3f8 320px, #ffffff 820px);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.8;
}

.sta-page {
  width: 100%;
  margin: 0 auto;
  padding: 10rem 0;
}

.sta-page .sta_thumb {
  padding:60px 0 0;
}
.sta-page .sta_thumb img {
  display: block;
  width: 100%;
  height:auto;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.sta-site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 42px;
}

.sta-brand {
  color: var(--sta-ink);
  text-decoration: none;
}

.sta-brand__eyebrow {
  display: block;
  color: var(--sta-accent);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.sta-brand__name {
  display: block;
  margin-top: 2px;
  font-size: 24px;
  font-weight: 750;
  line-height: 1.25;
}

.sta-home-link {
  color: var(--sta-muted);
  font-size: 14px;
  text-decoration: none;
}

.sta-home-link:hover {
  color: var(--sta-accent);
}

.sta-article {
  overflow: hidden;
  background: var(--sta-paper);
  border: 1px solid var(--sta-line);
  border-radius: var(--sta-radius);
  box-shadow: var(--sta-shadow);
}

.sta-hero {
  padding: 54px min(7vw, 76px) 34px;
  background:
    linear-gradient(135deg, rgba(31, 122, 92, 0.12), rgba(49, 95, 159, 0.1)),
    #ffffff;
  border-bottom: 1px solid var(--sta-line);
}

.sta-kicker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 20px;
}

.sta-pill {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 10px;
  color: var(--sta-accent);
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid rgba(31, 122, 92, 0.24);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  line-height: 1.2;
}

.sta-title {
  margin: 0;
  font-family: "Inter", sans-serif;
  font-weight: 500;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.08;
  letter-spacing: 0;
}

.sta-lede {
  max-width: 760px;
  margin: 22px 0 0;
  color: #455064;
  font-size: 18px;
  line-height: 1.75;
}

.sta-info-grid {
  font-family: "Inter", sans-serif;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 10px;
  margin-top: 38px;
  padding: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 14px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.76), rgba(255, 255, 255, 0.46)),
    rgba(244, 247, 251, 0.72);
  box-shadow:
    0 18px 54px rgba(32, 38, 51, 0.08),
    inset 0 1px 0 rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(10px);
}

.sta-info-item {
  position: relative;
  min-width: 0;
  padding: 18px 18px 17px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(220, 227, 238, 0.72);
  border-radius: 10px;
  box-shadow: 0 10px 24px rgba(32, 38, 51, 0.045);
}

.sta-info-item::before {
  content: "";
  position: absolute;
  top: 16px;
  left: 0;
  width: 3px;
  height: 26px;
  background: linear-gradient(180deg, var(--sta-accent), var(--sta-blue));
  border-radius: 0 999px 999px 0;
}

.sta-info-item--wide {
  grid-column: span 5;
  background:
    linear-gradient(135deg, rgba(231, 245, 239, 0.76), rgba(255, 255, 255, 0.86));
}

.sta-info-label {
  display: block;
  margin: 0;
  color: #748094;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  line-height: 1.3;
  text-transform: uppercase;
}

.sta-info-value {
  display: block;
  margin-top: 8px;
  margin-right: 0;
  margin-bottom: 0;
  margin-left: 0;
  color: #1f2937;
  font-size: 16px;
  font-weight: 650;
  line-height: 1.45;
  text-transform: capitalize;
}

.sta-content {
  font-family: "Inter", sans-serif;
  line-height: 1.8em;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 250px;
  gap: 54px;
  padding: 52px min(7vw, 76px) 62px;
}

.sta-main {
  min-width: 0;
}

.sta-main h2 {
  margin: 72px 0 18px;
  padding-top: 10px;
  font-size: 30px;
  line-height: 1.28;
  letter-spacing: 0;
}

.sta-main h2:first-child {
  margin-top: 0;
}

.sta-main h3 {
  margin: 34px 0 10px;
  font-size: 21px;
  line-height: 1.35;
}

.sta-main p {
  margin: 0 0 18px;
}

.sta-main strong {
  font-weight: 750;
}

.sta-main code,
.sta-code {
  padding: 0.1em 0.35em;
  color: #17304f;
  background: var(--sta-blue-soft);
  border: 1px solid rgba(49, 95, 159, 0.14);
  border-radius: 4px;
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 0.92em;
}

.sta-list,
.sta-steps {
  margin: 0 0 24px;
  padding-left: 1.35em;
}

.sta-list li,
.sta-steps li {
  margin: 7px 0;
  padding-left: 0.15em;
}

.sta-callout {
  margin: 26px 0;
  padding: 22px 24px;
  background: var(--sta-accent-soft);
  border: 1px solid rgba(31, 122, 92, 0.18);
  border-left: 5px solid var(--sta-accent);
  border-radius: var(--sta-radius);
}

.sta-callout--answer {
  background: #f8fbff;
  border-color: rgba(49, 95, 159, 0.18);
  border-left-color: var(--sta-blue);
}

.sta-callout--warning {
  background: var(--sta-warn-soft);
  border-color: rgba(154, 101, 21, 0.2);
  border-left-color: var(--sta-warn);
}

.sta-callout__title {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 800;
  line-height: 1.4;
}

.sta-example {
  margin: 22px 0 26px;
  padding: 22px 24px;
  background: var(--sta-soft);
  border: 1px solid var(--sta-line);
  border-radius: var(--sta-radius);
}

.sta-example__label {
  display: block;
  margin-bottom: 8px;
  color: var(--sta-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sta-example p:last-child {
  margin-bottom: 0;
}

.sta-code-block {
  margin: 22px 0 26px;
  padding: 18px 20px;
  overflow-x: auto;
  color: #17304f;
  background: #f7f9fc;
  border: 1px solid var(--sta-line);
  border-radius: var(--sta-radius);
  font-family: "SFMono-Regular", Consolas, "Liberation Mono", monospace;
  font-size: 14px;
  line-height: 1.7;
  white-space: pre;
}

.sta-table-wrap {
  margin: 26px 0 30px;
  overflow-x: auto;
  border: 1px solid var(--sta-line);
  border-radius: var(--sta-radius);
}

.sta-table {
  width: 100%;
  min-width: 620px;
  border-collapse: collapse;
  background: #fff;
}

.sta-table th,
.sta-table td {
  padding: 15px 16px;
  border-bottom: 1px solid var(--sta-line);
  text-align: left;
  vertical-align: top;
}

.sta-table th {
  color: #344054;
  background: #f7f9fc;
  font-size: 13px;
  font-weight: 800;
}

.sta-table tr:last-child td {
  border-bottom: 0;
}

.sta-method-card {
  margin: 28px 0;
  padding: 26px;
  border: 1px solid var(--sta-line);
  border-radius: var(--sta-radius);
  background: #fff;
}

.sta-method-card h2 {
  margin-top: 0;
  padding-top: 0;
}

.sta-toc {
  position: sticky;
  top: 24px;
  align-self: start;
  padding: 20px;
  background: #f7f9fc;
  border: 1px solid var(--sta-line);
  border-radius: var(--sta-radius);
}

.sta-toc__title {
  margin: 0 0 10px;
  color: var(--sta-muted);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sta-toc a {
  display: block;
  padding: 7px 0;
  color: #344054;
  font-size: 14px;
  line-height: 1.35;
  text-decoration: none;
}

.sta-toc a:hover {
  color: var(--sta-accent);
}

.sta-faq {
  display: grid;
  gap: 12px;
  margin-top: 24px;
}

.sta-faq details {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(247, 249, 252, 0.92));
  border: 1px solid rgba(220, 227, 238, 0.9);
  border-radius: 12px;
  box-shadow: 0 12px 30px rgba(32, 38, 51, 0.055);
  transition:
    border-color 0.2s ease,
    box-shadow 0.2s ease,
    transform 0.2s ease;
}

.sta-faq details[open] {
  border-color: rgba(31, 122, 92, 0.28);
  box-shadow: 0 18px 42px rgba(32, 38, 51, 0.085);
}

.sta-faq details:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 38px rgba(32, 38, 51, 0.075);
}

.sta-faq summary {
  position: relative;
  display: flex;
  align-items: center;
  gap: 14px;
  cursor: pointer;
  padding: 20px 54px 20px 22px;
  color: #1f2937;
  font-weight: 800;
  line-height: 1.45;
  list-style: none;
}

.sta-faq summary::-webkit-details-marker {
  display: none;
}

.sta-faq summary::before {
  content: "Q";
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--sta-accent);
  background: var(--sta-accent-soft);
  border: 1px solid rgba(31, 122, 92, 0.18);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 850;
  line-height: 1;
}

.sta-faq summary::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 22px;
  width: 9px;
  height: 9px;
  border-right: 2px solid #748094;
  border-bottom: 2px solid #748094;
  transform: translateY(-65%) rotate(45deg);
  transition: transform 0.2s ease, border-color 0.2s ease;
}

.sta-faq details[open] summary::after {
  border-color: var(--sta-accent);
  transform: translateY(-35%) rotate(225deg);
}

.sta-faq details p {
  margin: 0;
  padding: 0 24px 22px 64px;
  color: #485467;
  line-height: 1.75;
}

.sta-faq details p::before {
  content: "A";
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 24px;
  height: 24px;
  margin: 0 10px 0 -40px;
  color: var(--sta-blue);
  background: var(--sta-blue-soft);
  border: 1px solid rgba(49, 95, 159, 0.14);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 850;
  line-height: 1;
  vertical-align: 1px;
}

.sta-next-reading {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin: 32px 0 0;
  padding: 0;
  list-style: none;
}

#recommended-next-reading {
  margin-top: 82px;
}

.sta-next-reading li {
  padding: 14px 16px;
  background: #f7f9fc;
  border: 1px solid var(--sta-line);
  border-radius: var(--sta-radius);
  font-weight: 700;
  line-height: 1.45;
}

.sta-cta {
  margin-top: 58px;
  padding: 30px;
  color: #173126;
  background: linear-gradient(135deg, #e7f5ef, #f7fbff);
  border: 1px solid rgba(31, 122, 92, 0.2);
  border-radius: var(--sta-radius);
}

.sta-cta h2 {
  margin-top: 0;
  padding-top: 0;
}

@media (max-width: 900px) {
  .contents.sta-wrapper {
    width: 100%;
  }
  .sta-content {
    grid-template-columns: 1fr;
  }

  .sta-toc {
    position: static;
    order: -1;
  }

  .sta-info-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .sta-info-item--wide {
    grid-column: span 2;
  }
}

@media (max-width: 640px) {
  .sta-page {
    width: min(100% - 24px, 1120px);
    padding: 80px 0 48px;
  }

  .sta-site-header {
    align-items: flex-start;
    flex-direction: column;
    margin-bottom: 24px;
  }

  .sta-brand__name {
    font-size: 21px;
  }

  .sta-hero,
  .sta-content {
    padding-left: 20px;
    padding-right: 20px;
  }

  .sta-hero {
    padding-top: 34px;
  }

  .sta-title {
    font-size: 34px;
  }

  .sta-lede {
    font-size: 16px;
  }

  .sta-info-grid {
    grid-template-columns: 1fr;
  }

  .sta-info-item--wide {
    grid-column: span 1;
  }

  .sta-main h2 {
    margin-top: 56px;
    font-size: 25px;
  }

  .sta-main h3 {
    font-size: 19px;
  }

  .sta-callout,
  .sta-example,
  .sta-method-card,
  .sta-cta {
    padding: 20px;
  }

  .sta-faq summary {
    align-items: flex-start;
    padding: 18px 46px 18px 18px;
  }

  .sta-faq summary::after {
    right: 18px;
  }

  .sta-faq details p {
    padding: 0 18px 20px 56px;
  }

  .sta-next-reading {
    grid-template-columns: 1fr;
  }
}