:root {
  --posts-width: 1280px;
  --posts-ink: #1f2937;
  --posts-muted: #657385;
  --posts-line: #d8e1ea;
  --posts-soft: #f5f8fb;
  --posts-blue: #3861fb;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: #f3f7f9;
  color: var(--posts-ink);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  line-height: 1.7;
}

.wrap {
  min-height: 100vh;
}

.site-header {
  border-bottom: 1px solid rgba(216, 225, 234, 0.85);
  background: rgba(255, 255, 255, 0.96);
}

.repo-hero {
  width: min(calc(100% - 32px), var(--posts-width));
  margin: 18px auto 0;
  overflow: hidden;
  border: 1px solid var(--posts-line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(34, 55, 77, 0.06);
}

.repo-context {
  padding: 20px 24px 14px;
}

.repo-title {
  margin: 0;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.repo-tabs {
  position: relative;
  display: flex;
  gap: 4px;
  overflow-x: auto;
  padding: 0 16px;
  border-top: 1px solid #edf1f5;
}

.repo-tabs a {
  flex: 0 0 auto;
  padding: 12px 10px 11px;
  color: var(--posts-muted);
  font-size: 0.82rem;
  font-weight: 700;
  text-decoration: none;
}

.repo-tabs a:first-child {
  color: #2454b8;
}

.repo-tabs a:hover {
  color: #2454b8;
}

.repo-tab-indicator {
  position: absolute;
  bottom: 0;
  left: 26px;
  width: 68px;
  height: 3px;
  border-radius: 3px 3px 0 0;
  background: var(--posts-blue);
}

.calculator-page.post-page {
  width: min(calc(100% - 32px), var(--posts-width));
  margin: 16px auto 0;
}

.calculator-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 300px;
  gap: 18px;
  align-items: start;
}

.calculator-main,
.calculator-aside {
  min-width: 0;
}

.calculator-panel,
.calculator-aside-section,
.calculator-related-section,
.calculator-aside-search {
  border: 1px solid var(--posts-line);
  border-radius: 16px;
  background: #fff;
  box-shadow: 0 10px 28px rgba(34, 55, 77, 0.06);
}

.calculator-panel {
  overflow: hidden;
}

.calculator-panel-head {
  padding: 26px 30px 18px;
}

.calculator-kicker {
  margin: 0 0 6px;
  color: #58708a;
  font-size: 0.68rem;
  font-weight: 850;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.calculator-panel-head h2 {
  margin: 0;
  color: #181d24;
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  line-height: 1.12;
  letter-spacing: -0.04em;
}

.post-page #articleTitle {
  font-size: clamp(1.75rem, 2.4vw, 2rem);
  line-height: 1.3;
  letter-spacing: -0.025em;
}

.post-article-meta {
  padding: 0 30px 20px;
  color: #7a8795;
  font-size: 0.77rem;
  line-height: 1.55;
}

.post-article-body {
  padding: 0 30px 38px;
  color: #3f4c5b;
  font-size: 1rem;
}

.article-cover {
  margin: 0 0 34px;
  overflow: hidden;
  border-top: 1px solid var(--posts-line);
  border-bottom: 1px solid var(--posts-line);
  background: var(--posts-soft);
}

.article-cover img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1200 / 630;
  object-fit: cover;
}

.post-article-body p {
  margin: 0 0 17px;
}

.post-article-body h2 {
  scroll-margin-top: 20px;
  margin: 44px 0 16px;
  padding-top: 3px;
  color: #20252d;
  font-size: clamp(1.45rem, 2.6vw, 1.9rem);
  line-height: 1.25;
  letter-spacing: -0.025em;
}

.post-article-body h3 {
  margin: 28px 0 12px;
  color: #29313b;
  font-size: 1.15rem;
}

.post-article-body hr {
  height: 1px;
  margin: 38px 0;
  border: 0;
  background: var(--posts-line);
}

.post-article-body strong {
  color: #273342;
}

.post-article-body code {
  padding: 2px 6px;
  border: 1px solid #dbe4ed;
  border-radius: 5px;
  background: #f3f6f9;
  color: #274d75;
  font:
    0.88em 'SFMono-Regular',
    Consolas,
    monospace;
}

.post-article-body a {
  color: #285cc5;
  font-weight: 650;
  text-underline-offset: 3px;
}

.post-article-body > div:has(> div > table) {
  margin: 24px 0 30px;
  overflow-x: auto;
}

.post-article-body table {
  width: 100%;
  min-width: 680px;
  border: 1px solid var(--posts-line);
  border-collapse: separate;
  border-spacing: 0;
  border-radius: 11px;
  overflow: hidden;
  font-size: 0.86rem;
}

.post-article-body th,
.post-article-body td {
  padding: 11px 13px;
  border-bottom: 1px solid var(--posts-line);
  text-align: left;
  vertical-align: top;
}

.post-article-body th + th,
.post-article-body td + td {
  border-left: 1px solid var(--posts-line);
}

.post-article-body th {
  background: var(--posts-soft);
  color: #334155;
  font-size: 0.76rem;
}

.post-article-body tr:last-child td {
  border-bottom: 0;
}

.post-language-link {
  margin-top: 34px !important;
  padding: 14px 16px;
  border: 1px solid #cbd9f8;
  border-radius: 10px;
  background: #f4f7ff;
  font-size: 0.9rem;
}

.calculator-aside {
  display: grid;
  gap: 14px;
}

.calculator-aside-search {
  position: relative;
  padding: 12px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
}

.search-frame {
  position: relative;
}

.search-ico {
  position: absolute;
  top: 50%;
  left: 11px;
  width: 18px;
  height: 18px;
  color: #7b8794;
  transform: translateY(-50%);
}

.search-ico svg {
  width: 100%;
  height: 100%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
}

.search-frame input {
  width: 100%;
  height: 40px;
  padding: 0 12px 0 38px;
  border: 1px solid var(--posts-line);
  border-radius: 9px;
  background: var(--posts-soft);
  color: var(--posts-ink);
  font: inherit;
  font-size: 0.78rem;
}

.result-popover {
  display: none;
}

.calculator-aside-section,
.calculator-related-section {
  padding: 18px;
}

.post-author-card {
  display: flex;
  gap: 12px;
  align-items: center;
}

.post-author-card img {
  width: 54px;
  height: 54px;
  flex: 0 0 54px;
  border-radius: 50%;
  object-fit: cover;
}

.post-author-card h2 {
  margin: 0 0 2px;
  font-size: 1rem;
}

.post-author-card p {
  margin: 0;
  color: var(--posts-muted);
  font-size: 0.78rem;
  line-height: 1.5;
}

.calculator-related-section .calculator-panel-head {
  padding: 0 0 14px;
}

.calculator-related-section .calculator-panel-head h2 {
  font-size: 1.18rem;
}

.calculator-related-grid {
  display: grid;
  gap: 10px;
}

.calculator-related-card {
  display: grid;
  gap: 5px;
  overflow: hidden;
  padding: 12px;
  border: 1px solid var(--posts-line);
  border-radius: 11px;
  color: inherit;
  text-decoration: none;
}

.calculator-related-card:hover {
  border-color: #aebfe9;
  background: #f7f9ff;
}

.calculator-related-card strong {
  font-size: 0.86rem;
  line-height: 1.35;
}

.calculator-related-card span {
  color: var(--posts-muted);
  font-size: 0.73rem;
  line-height: 1.45;
}

.reference-card-thumb {
  order: -1;
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: 7px;
  object-fit: cover;
}

.page-footer {
  display: flex;
  width: min(calc(100% - 32px), var(--posts-width));
  justify-content: space-between;
  margin: 28px auto 0;
  padding: 20px 0;
  border-top: 1px solid var(--posts-line);
  color: var(--posts-muted);
  font-size: 0.8rem;
}

.page-footer a {
  color: #24527a;
  font-weight: 800;
  text-decoration: none;
}

@media (max-width: 900px) {
  .calculator-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .calculator-aside {
    grid-template-columns: 1fr 1fr;
  }

  .calculator-aside-search {
    grid-column: 1 / -1;
  }
}

@media (max-width: 768px) {
  .post-article-page {
    background: var(--color-surface);
    color: var(--color-text);
  }

  .post-article-page .wrap {
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
  }

  .calculator-page.post-page {
    width: 100%;
    max-width: none;
    margin: 0;
  }

  .repo-hero {
    width: min(100% - 20px, var(--posts-width));
    margin-top: 10px;
  }

  .repo-context {
    padding: 16px 18px 11px;
  }

  .post-page .calculator-grid,
  .post-page .calculator-aside {
    grid-template-columns: minmax(0, 1fr);
    gap: 0;
  }

  .post-page :is(.calculator-panel, .calculator-aside-section, .calculator-related-section) {
    width: 100%;
    margin: 0;
    border: 0;
    border-top: 1px solid var(--color-border);
    border-radius: 0;
    background: var(--color-surface);
    box-shadow: none;
  }

  .post-page .calculator-main > .calculator-panel {
    border-top: 0;
  }

  .post-page .calculator-panel-head {
    padding: 24px 20px 16px;
  }

  .post-page .calculator-panel-head h2 {
    color: var(--color-text);
    font-size: clamp(1.75rem, 7.8vw, 2.1rem);
    line-height: 1.12;
    overflow-wrap: anywhere;
  }

  .post-page #articleTitle {
    font-size: clamp(1.375rem, calc(1.15rem + 1vw), 1.625rem);
  }

  .post-page :is(.calculator-kicker, .post-article-meta) {
    color: var(--color-muted);
  }

  .post-page .post-article-meta {
    padding: 0 20px 20px;
  }

  .post-page .post-article-body {
    padding: 0 16px 24px;
    color: var(--color-text);
    font-size: 0.94rem;
    overflow-wrap: anywhere;
  }

  .post-page .article-cover {
    margin: 0 0 24px;
    border-color: var(--color-border);
    background: var(--color-background);
  }

  .post-page .post-article-body :is(h2, h3) {
    color: var(--color-text);
    font-size: 1.125rem;
    line-height: 1.4;
  }

  .post-page .post-article-body h2 {
    margin-top: 32px;
  }

  .post-page :is(.calculator-aside-section, .calculator-related-section) {
    padding: 20px 16px;
  }

  .post-page .calculator-related-section .calculator-panel-head {
    padding: 0 0 16px;
  }

  .post-page .calculator-related-section .calculator-panel-head h2 {
    font-size: 1.125rem;
    line-height: 1.4;
  }
}

@media (max-width: 600px) {
  .calculator-aside {
    grid-template-columns: 1fr;
  }

  .calculator-aside-search {
    grid-column: auto;
  }

  .page-footer {
    align-items: flex-start;
    flex-direction: column;
    gap: 3px;
  }
}