/* Guides section: hub and article pages. Loaded after styles.css. */
.guide-page {
  width: min(760px, calc(100% - 48px));
  margin: 40px auto 88px;
  color: #26354b;
}

.guide-page h1 {
  max-width: none;
  margin: 12px 0 0;
  font-size: clamp(34px, 5vw, 52px);
  line-height: 1.08;
  font-weight: 800;
  text-wrap: balance;
}

.guide-page h2 {
  margin: 56px 0 14px;
  color: var(--text);
  font-size: clamp(24px, 3vw, 30px);
  line-height: 1.2;
  font-weight: 800;
  scroll-margin-top: 16px;
}

.guide-page h3 {
  margin: 34px 0 10px;
  color: var(--text);
  font-size: 21px;
  line-height: 1.3;
  font-weight: 800;
  scroll-margin-top: 16px;
}

.guide-page p,
.guide-page li {
  font-size: 18px;
  line-height: 1.72;
}

.guide-page p {
  margin: 0 0 16px;
}

.guide-page ul,
.guide-page ol {
  margin: 0 0 18px;
  padding-left: 24px;
}

.guide-page li + li {
  margin-top: 6px;
}

.guide-page li > ul {
  margin: 6px 0 0;
}

.guide-page strong {
  color: var(--text);
}

.guide-page a {
  color: var(--primary);
  font-weight: 700;
  overflow-wrap: anywhere;
}

.guide-page a:hover {
  color: var(--primary-dark);
}

.guide-breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 14px;
}

.guide-page .guide-breadcrumb li,
.guide-page .guide-breadcrumb li + li {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
}

.guide-breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--quiet);
}

.guide-page .guide-byline {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.5;
}

.guide-hero {
  margin: 28px 0 0;
}

.guide-hero img,
.guide-card img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.guide-hero .ai-image-note,
.guide-media .ai-image-note {
  display: block;
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.45;
  color: var(--muted);
}

.guide-toc {
  margin: 28px 0 8px;
  padding: 18px 22px;
  border-left: 3px solid var(--primary);
  background: var(--bg-soft);
}

.guide-page .guide-toc p {
  margin: 0 0 8px;
  color: var(--text);
  font-size: 15px;
  font-weight: 800;
}

.guide-toc ol {
  columns: 2 220px;
  column-gap: 28px;
  margin: 0;
  padding-left: 20px;
}

.guide-page .guide-toc li {
  margin: 0 0 4px;
  font-size: 15px;
  line-height: 1.5;
  break-inside: avoid;
}

.guide-body > p:first-child {
  margin-top: 28px;
  color: var(--text);
  font-size: 19px;
}

.guide-page .guide-summary {
  margin: 28px 0 8px;
  padding: 16px 20px 6px;
  background: var(--primary-soft);
  border-inline-start: 4px solid var(--primary);
  border-radius: var(--radius);
}

.guide-page .guide-summary h2 {
  margin: 0 0 6px;
  color: var(--primary-dark);
  font-size: 15px;
  line-height: 1.3;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.guide-page .guide-summary p {
  margin: 0 0 12px;
  color: var(--text);
  font-size: 18px;
}

.table-wrap {
  max-width: 100%;
  margin: 8px 0 22px;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.table-wrap:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.table-wrap table {
  width: 100%;
  min-width: 540px;
  border-collapse: collapse;
  font-size: 15px;
  line-height: 1.5;
}

.table-wrap th,
.table-wrap td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

.table-wrap th {
  background: var(--bg-soft);
  color: var(--text);
  font-weight: 800;
  white-space: nowrap;
}

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

.guide-cta {
  margin: 44px 0 36px;
  padding: 24px;
  border: 2px solid var(--primary);
  border-radius: var(--radius);
  background: var(--primary-soft);
}

.guide-page .guide-cta-title {
  margin: 0 0 8px;
  color: var(--text);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.3;
}

.guide-cta .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  max-width: 100%;
  margin-top: 4px;
  color: #ffffff;
  text-align: center;
  white-space: normal;
}

.guide-cta .button:hover {
  color: #ffffff;
}

.guide-series {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: 36px 0 0;
  font-size: 15px;
}

.guide-series span {
  margin-right: 4px;
  color: var(--muted);
  font-weight: 700;
}

.guide-series a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: #ffffff;
  text-decoration: none;
}

.guide-series a[aria-current="page"] {
  border-color: var(--primary);
  background: var(--primary-soft);
  color: var(--primary-dark);
}

.guide-author {
  margin: 40px 0 16px;
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.guide-page .guide-author p {
  margin: 0;
  font-size: 16px;
}

.guide-page .guide-disclaimer {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.guide-sources h2 {
  font-size: 22px;
}

.guide-page .guide-sources p,
.guide-page .guide-sources li {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.guide-page .guide-lead {
  max-width: 640px;
  margin: 18px 0 0;
  font-size: 19px;
}

.guide-page .guide-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin: 8px 0 0;
  padding: 0;
  list-style: none;
}

.guide-page .guide-card,
.guide-page .guide-card + .guide-card {
  margin: 0;
}

.guide-card a {
  display: flex;
  flex-direction: column;
  gap: 8px;
  height: 100%;
  padding: 0 0 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--text);
  text-decoration: none;
  overflow: hidden;
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

.guide-card a:hover {
  border-color: var(--primary);
  box-shadow: 0 12px 32px rgba(7, 18, 38, 0.08);
  color: var(--text);
}

.guide-card img {
  border-radius: 0;
}

.guide-card-title {
  padding: 6px 16px 0;
  font-size: 18px;
  font-weight: 800;
  line-height: 1.3;
}

.guide-card-text {
  padding: 0 16px;
  color: var(--muted);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.5;
}

.calc-box {
  margin: 28px 0 12px;
  padding: 22px 24px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-soft);
}

.guide-page .calc-title {
  margin: 0 0 14px;
  font-size: 22px;
}

.calc-units {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  margin: 0 0 14px;
  padding: 0;
  border: 0;
}

.calc-units legend {
  margin-bottom: 6px;
  color: var(--text);
  font-size: 15px;
  font-weight: 800;
}

.calc-units label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 16px;
}

.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 14px 18px;
  margin-bottom: 18px;
}

.calc-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.calc-field[hidden] {
  display: none;
}

.calc-field label,
.calc-pair-label {
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
}

.calc-optional {
  color: var(--muted);
  font-weight: 500;
}

.calc-field input,
.calc-field select {
  width: 100%;
  min-height: 44px;
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  background: #ffffff;
  color: var(--text);
  font: inherit;
  font-size: 16px;
}

.calc-field input:focus-visible,
.calc-field select:focus-visible,
.calc-units input:focus-visible {
  outline: none;
  box-shadow: var(--focus);
}

.calc-pair-inputs {
  display: flex;
  gap: 10px;
}

.calc-pair-inputs label {
  display: flex;
  flex: 1;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.calc .button {
  min-width: 160px;
  color: #ffffff;
}

.calc-result {
  margin-top: 18px;
  padding: 16px 18px;
  border-left: 3px solid var(--primary);
  border-radius: 8px;
  background: #ffffff;
}

.calc-result.calc-error {
  border-left-color: #b42318;
}

.guide-page .calc-result p {
  margin: 0 0 8px;
  font-size: 16px;
}

.guide-page .calc-result .calc-big {
  color: var(--text);
  font-size: 20px;
}

.calc-result .table-wrap {
  margin-bottom: 0;
}

.calc-result .table-wrap table {
  min-width: 0;
}

.guide-page .calc-note,
.guide-page .calc-nojs {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
}

.tool-card a {
  padding-top: 16px;
}

.tool-badge {
  align-self: flex-start;
  margin: 0 16px;
  padding: 6px 12px;
  border-radius: 8px;
  background: var(--primary-soft);
  color: var(--primary-dark);
  font-size: 22px;
  font-weight: 800;
  line-height: 1.2;
}

@media (max-width: 760px) {
  .calc-box {
    padding: 18px 16px 14px;
  }

  .calc .button {
    width: 100%;
  }
}

@media (max-width: 760px) {
  .guide-page {
    width: calc(100% - 32px);
    margin-top: 28px;
  }

  .guide-page p,
  .guide-page li {
    font-size: 17px;
  }

  .guide-page h2 {
    margin-top: 44px;
  }

  .guide-cta {
    padding: 20px;
  }
}

@media (max-width: 360px) {
  .guide-page {
    width: calc(100% - 24px);
  }
}

.guide-note {
  margin: 20px 0;
  padding: 14px 18px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--bg-soft);
  font-size: 16px;
}

.guide-note p {
  margin: 0;
}

.guide-note p + p {
  margin-top: 8px;
}

.guide-hub .guide-section-lead {
  margin: 8px 0 14px;
  color: var(--muted);
}

.guide-hub .guide-section-more {
  margin: 14px 0 0;
  font-weight: 700;
}

.guide-hub .guide-section h2 a {
  color: inherit;
  text-decoration: none;
}

.guide-hub .guide-section h2 a:hover {
  text-decoration: underline;
}

.guide-hub .guide-subnav {
  margin: 12px 0 0;
}

.guide-hub .guide-group {
  margin: 32px 0 12px;
  font-size: 20px;
  scroll-margin-top: 88px;
}

.guide-hub .guide-section h2 {
  scroll-margin-top: 88px;
}

@media (max-width: 640px) {
  .guide-hub .guide-cards {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: #ffffff;
    overflow: hidden;
  }

  .guide-hub .guide-card + .guide-card a {
    border-top: 1px solid var(--line);
  }

  .guide-hub .guide-card a {
    flex-direction: row;
    align-items: center;
    gap: 12px;
    min-height: 76px;
    padding: 8px 12px;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .guide-hub .guide-card a:hover {
    box-shadow: none;
  }

  .guide-hub .guide-card img {
    flex: none;
    width: 60px;
    height: 60px;
    object-fit: cover;
    border-radius: 8px;
  }

  .guide-hub .tool-badge {
    flex: none;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    margin: 0;
    padding: 4px;
    overflow: hidden;
    font-size: 11px;
    line-height: 1.15;
    text-align: center;
    overflow-wrap: anywhere;
  }

  .guide-hub .guide-card-title {
    padding: 0;
    font-size: 16px;
    line-height: 1.35;
  }

  .guide-hub .guide-card-text {
    display: none;
  }

  .guide-hub .guide-group {
    margin: 26px 0 10px;
    font-size: 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .guide-card a {
    transition: none;
  }
}