:root {
  --bg: #f7f4ee;
  --surface: #ffffff;
  --ink: #202124;
  --muted: #5d6268;
  --line: #ddd7cc;
  --accent: #2f6f5e;
  --accent-strong: #194f43;
  --warm: #a8512e;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  font-family: Georgia, "Times New Roman", serif;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.62), rgba(255, 255, 255, 0) 280px),
    var(--bg);
}

.blog-index-page {
  font-size: 17px;
  line-height: 1.65;
}

.blog-post-page {
  font-size: 18px;
  line-height: 1.72;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--accent-strong);
}

a:focus-visible,
button:focus-visible {
  outline: 3px solid rgba(47, 111, 94, 0.28);
  outline-offset: 4px;
}

.skip-link {
  position: absolute;
  top: 1rem;
  left: 1rem;
  z-index: 10;
  transform: translateY(-160%);
  padding: 0.5rem 0.75rem;
  color: #fff;
  background: var(--ink);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-mark {
  position: absolute;
  top: clamp(2rem, 6vh, 4rem);
  right: max(20px, calc((100% - 720px) / 2));
  z-index: 2;
  display: block;
  width: clamp(3.9rem, 9vw, 5.25rem);
  height: clamp(3.9rem, 9vw, 5.25rem);
  line-height: 0;
}

.site-mark img {
  display: block;
  width: 100%;
  height: 100%;
}

.blog-index,
.post-shell {
  width: min(720px, calc(100% - 40px));
  margin: 0 auto;
  padding-bottom: 4rem;
}

.blog-index {
  min-height: 100vh;
  padding-top: clamp(4rem, 12vh, 8rem);
}

.post-shell {
  padding-top: clamp(4rem, 10vh, 7rem);
}

.breadcrumb,
.eyebrow,
.article-meta,
.article-summary,
.index-intro,
.index-note,
.post-details,
.post-parameters,
.article-tools,
.translation-dialog,
.post-footer,
.related-posts {
  font-family: Arial, Helvetica, sans-serif;
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: clamp(2rem, 5vw, 3.5rem);
  color: var(--muted);
  font-size: 0.82rem;
}

.breadcrumb a {
  color: var(--muted);
}

.index-header {
  padding-bottom: clamp(2rem, 5vw, 3rem);
  border-bottom: 1px solid var(--line);
}

.post-header {
  padding-bottom: clamp(2rem, 5vw, 3rem);
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.76rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.index-header .eyebrow {
  color: var(--muted);
}

.post-header .eyebrow,
.related-posts .eyebrow {
  color: var(--warm);
  font-weight: 700;
}

h1 {
  margin: 0;
  font-weight: 400;
  line-height: 1.04;
}

.index-header h1 {
  max-width: 620px;
  font-size: clamp(2.5rem, 8vw, 4.8rem);
}

.post-header h1 {
  max-width: 680px;
  font-size: clamp(2.4rem, 7vw, 4.4rem);
}

.index-intro {
  max-width: 560px;
  margin: 1.35rem 0 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.article-list {
  margin-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.article-link {
  display: grid;
  grid-template-columns: minmax(120px, 0.34fr) minmax(0, 1fr);
  gap: 1.5rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

.article-link:hover {
  color: var(--ink);
}

.article-link:hover .article-title {
  color: var(--accent-strong);
}

.article-meta {
  display: grid;
  align-content: start;
  gap: 0.2rem;
  color: var(--muted);
  font-size: 0.73rem;
  letter-spacing: 0.04em;
  line-height: 1.35;
  text-transform: uppercase;
}

.article-category {
  color: var(--warm);
  font-weight: 700;
}

.article-title {
  display: block;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  line-height: 1.18;
  transition: color 0.18s ease;
}

.article-summary {
  display: block;
  margin-top: 0.55rem;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.index-note {
  margin: 2rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.post-details {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 218px;
  align-items: stretch;
  margin-top: 1.75rem;
  border-top: 1px solid var(--line);
}

.post-parameters {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  list-style: none;
}

.post-parameters li {
  display: grid;
  gap: 0.2rem;
  padding: 0.8rem 0.75rem 0.8rem 0;
}

.post-parameters li + li {
  padding-left: 0.75rem;
  border-left: 1px solid var(--line);
}

.parameter-name {
  color: var(--muted);
  font-size: 0.67rem;
  letter-spacing: 0.07em;
  text-transform: uppercase;
}

.parameter-value {
  color: var(--ink);
  font-size: 0.82rem;
}

.article-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
  grid-template-rows: repeat(2, minmax(0, 1fr));
  gap: 0.4rem;
  padding: 0.55rem 0 0.55rem 0.75rem;
  border-left: 1px solid var(--line);
}

.action-wrap {
  position: relative;
  display: flex;
  min-width: 0;
}

.action-wrap--translate {
  grid-column: 1;
  grid-row: 1;
}

.action-wrap--copy {
  grid-column: 1;
  grid-row: 2;
}

.action-wrap--ai-test {
  grid-column: 2;
  grid-row: 1 / 3;
}

.article-action {
  width: 100%;
  min-height: 32px;
  padding: 0.5rem 0.62rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--muted);
  background: transparent;
  font: 700 0.72rem/1 Arial, Helvetica, sans-serif;
  cursor: pointer;
  transition: color 0.18s ease, background 0.18s ease, border-color 0.18s ease;
}

.article-action--ai-test {
  line-height: 1.25;
}

.article-action:hover,
.article-action:focus-visible {
  border-color: var(--accent-strong);
  color: var(--accent-strong);
  background: rgba(47, 111, 94, 0.06);
}

.article-action.is-copied {
  border-color: var(--accent);
  color: #fff;
  background: var(--accent);
}

.action-tooltip {
  position: absolute;
  right: 0;
  bottom: calc(100% + 0.7rem);
  z-index: 3;
  width: min(280px, calc(100vw - 48px));
  padding: 0.7rem 0.8rem;
  border-radius: 5px;
  color: #fff;
  background: var(--ink);
  box-shadow: 0 10px 28px rgba(32, 33, 36, 0.16);
  font-size: 0.78rem;
  line-height: 1.45;
  opacity: 0;
  pointer-events: none;
  transform: translateY(4px);
  transition: opacity 0.16s ease, transform 0.16s ease;
}

.action-tooltip::after {
  content: "";
  position: absolute;
  top: 100%;
  right: 1.2rem;
  border: 6px solid transparent;
  border-top-color: var(--ink);
}

.action-wrap:hover .action-tooltip,
.action-wrap:focus-within .action-tooltip {
  opacity: 1;
  transform: translateY(0);
}

.copy-status {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

.translation-dialog {
  width: min(460px, calc(100% - 32px));
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--ink);
  background: var(--bg);
  box-shadow: 0 22px 70px rgba(32, 33, 36, 0.24);
}

.translation-dialog::backdrop {
  background: rgba(32, 33, 36, 0.42);
  backdrop-filter: blur(2px);
}

.dialog-inner {
  padding: clamp(1.35rem, 5vw, 2rem);
}

.dialog-kicker {
  margin: 0 0 0.45rem;
  color: var(--warm);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.translation-dialog h2 {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.65rem;
  font-weight: 400;
  line-height: 1.2;
}

.translation-dialog p,
.translation-dialog li {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.55;
}

.translation-dialog ul {
  margin: 1rem 0 1.25rem;
  padding-left: 1.2rem;
}

.translation-instructions--mobile {
  display: none;
}

.dialog-close {
  min-height: 36px;
  padding: 0.58rem 0.9rem;
  border: 1px solid var(--accent-strong);
  border-radius: 4px;
  color: #fff;
  background: var(--accent-strong);
  font: 700 0.72rem/1 Arial, Helvetica, sans-serif;
  cursor: pointer;
}

.post-content {
  width: min(100%, 640px);
  margin: clamp(2.5rem, 7vw, 4.5rem) auto 0;
}

.post-content h2 {
  margin: 2.5rem 0 0.75rem;
  font-size: clamp(1.55rem, 4vw, 2rem);
  font-weight: 400;
  line-height: 1.2;
}

.post-content p {
  margin: 0 0 1.25rem;
}

.post-content p:first-child {
  font-size: 1.14em;
  line-height: 1.62;
}

.post-content blockquote {
  margin: 2rem 0;
  padding: 1.15rem 1.3rem;
  border-left: 3px solid var(--accent);
  color: var(--ink);
  background: rgba(47, 111, 94, 0.07);
  font-size: 1.04em;
  line-height: 1.62;
}

.post-content blockquote p {
  margin: 0;
}

.exercise-link {
  display: inline-block;
  margin-top: 0.35rem;
  font-family: Arial, Helvetica, sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
}

.article-signature {
  width: min(100%, 640px);
  margin: clamp(2.8rem, 7vw, 4.25rem) auto 0;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
}

.signature-name {
  margin: 0;
  color: var(--accent-strong);
  font-family: "Segoe Print", "Bradley Hand", "Comic Sans MS", cursive;
  font-size: clamp(1.7rem, 5vw, 2.2rem);
  line-height: 1.1;
  transform: rotate(-1.5deg);
  transform-origin: left center;
}

.signature-note {
  margin: 0.45rem 0 0;
  color: var(--muted);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.96rem;
  font-style: italic;
}

.related-posts {
  margin-top: clamp(3rem, 8vw, 5rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

.related-posts .eyebrow {
  margin-bottom: 0.55rem;
}

.related-posts h2 {
  margin: 0 0 1rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(1.55rem, 4vw, 2rem);
  font-weight: 400;
  line-height: 1.2;
}

.related-links {
  border-top: 1px solid var(--line);
}

.related-links a {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 1.25rem;
  align-items: baseline;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  text-decoration: none;
}

.related-links a:hover span {
  color: var(--accent-strong);
}

.related-links span {
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.02rem;
  transition: color 0.18s ease;
}

.related-links small {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.post-footer {
  margin-top: clamp(3rem, 8vw, 5rem);
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.86rem;
}

@media (max-width: 620px) {
  .blog-index-page {
    font-size: 16px;
  }

  .blog-post-page {
    font-size: 17px;
  }

  .post-content blockquote {
    margin-inline: 0;
    padding: 1rem;
  }

  .blog-index,
  .post-shell {
    width: min(100% - 32px, 720px);
  }

  .site-mark {
    right: 16px;
  }

  .article-link,
  .related-links a {
    grid-template-columns: 1fr;
  }

  .article-link {
    gap: 0.65rem;
  }

  .article-meta {
    grid-template-columns: auto 1fr;
    gap: 0.75rem;
  }

  .related-links a {
    gap: 0.2rem;
  }

  .post-details,
  .post-parameters {
    grid-template-columns: 1fr;
  }

  .post-parameters li + li {
    padding-left: 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .article-tools {
    grid-template-columns: minmax(0, 1fr) minmax(0, 0.92fr);
    padding: 0.65rem 0;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .action-tooltip {
    width: min(280px, calc(100vw - 32px));
  }

  .action-wrap--copy .action-tooltip {
    right: auto;
    left: 0;
  }

  .action-wrap--copy .action-tooltip::after {
    right: auto;
    left: 1.2rem;
  }
}

@media (max-width: 620px), (hover: none) and (pointer: coarse) {
  .translation-instructions--desktop {
    display: none;
  }

  .translation-instructions--mobile {
    display: block;
  }
}

@media (prefers-reduced-motion: reduce) {
  .article-title,
  .article-action,
  .action-tooltip,
  .related-links span {
    transition: none;
  }
}