/*
 * Personal site visual system
 *
 * The pages deliberately read more like a working notebook than a product
 * landing page: paper, rules, dates, and uneven editorial columns instead of
 * gradients, glass panels, or a repeating card grid.
 */

:root {
  color-scheme: light;
  --paper: #f3f0e8;
  --paper-deep: #e9e3d7;
  --paper-warm: #fbf9f4;
  --ink: #191815;
  --ink-soft: #37342f;
  --muted: #746f65;
  --faint: #a7a094;
  --rule: #cfc7b8;
  --rule-dark: #8a8378;
  --rust: #b24e2e;
  --rust-dark: #87381f;
  --blue: #2b527c;
  --blue-dark: #1d3b5b;
  --green: #315d4c;
  --font-serif: Iowan Old Style, Palatino Linotype, Book Antiqua, Georgia,
    "Songti SC", "STSong", "Noto Serif CJK SC", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", Arial,
    sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas,
    "Liberation Mono", "PingFang SC", monospace;
  --page: min(1160px, calc(100% - 56px));
  --reading: min(760px, calc(100% - 56px));
  --ease: 160ms ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  scroll-behavior: smooth;
  text-size-adjust: 100%;
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

img,
picture,
svg,
video {
  display: block;
  max-width: 100%;
}

img {
  height: auto;
}

button,
input,
textarea,
select {
  font: inherit;
}

button {
  color: inherit;
}

a {
  color: inherit;
  text-decoration-color: color-mix(in srgb, currentColor 45%, transparent);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--rust-dark);
  text-decoration-color: currentColor;
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 3px solid var(--blue);
  outline-offset: 4px;
}

::selection {
  background: #d8d0bd;
  color: var(--ink);
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 9px 13px;
  transform: translateY(-170%);
  border: 1px solid var(--ink);
  background: var(--paper-warm);
  color: var(--ink);
  font-size: 14px;
  text-decoration: none;
  transition: transform var(--ease);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Shared frame */

.site-header {
  border-bottom: 1px solid var(--rule-dark);
}

.site-nav {
  width: var(--page);
  min-height: 76px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.site-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: 25px;
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1;
  text-decoration: none;
}

.site-brand::after {
  width: 5px;
  height: 5px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: var(--rust);
  content: "";
}

.site-nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px 20px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.015em;
  list-style: none;
}

.site-nav-links a {
  display: inline-block;
  padding: 6px 0;
  color: var(--muted);
  text-decoration: none;
}

.site-nav-links a:hover,
.site-nav-links a[aria-current="page"] {
  color: var(--ink);
}

.site-nav-links a[aria-current="page"]::before {
  margin-right: 5px;
  color: var(--rust);
  content: "/";
}

.site-main {
  min-height: calc(100vh - 224px);
}

.site-shell {
  width: var(--page);
  margin: 0 auto;
}

.reading-shell {
  width: var(--reading);
  margin: 0 auto;
}

.page-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(180px, 0.32fr);
  gap: 32px;
  padding: clamp(56px, 9vw, 116px) 0 clamp(42px, 6vw, 72px);
  border-bottom: 1px solid var(--rule-dark);
}

.page-header--compact {
  padding-bottom: 36px;
}

.page-kicker,
.section-kicker,
.entry-kicker,
.meta-label {
  margin: 0 0 12px;
  color: var(--rust-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.page-heading {
  max-width: 800px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(42px, 7vw, 82px);
  font-weight: 700;
  letter-spacing: -0.055em;
  line-height: 0.98;
}

.page-lede {
  max-width: 630px;
  margin: 22px 0 0;
  color: var(--ink-soft);
  font-family: var(--font-serif);
  font-size: clamp(18px, 2vw, 23px);
  line-height: 1.62;
}

.page-aside {
  align-self: end;
  margin: 0;
  padding: 16px 0 0 18px;
  border-left: 1px solid var(--rule);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.75;
}

.page-aside p:first-child {
  margin-top: 0;
}

.page-aside p:last-child {
  margin-bottom: 0;
}

.section {
  padding: clamp(42px, 7vw, 86px) 0;
  border-bottom: 1px solid var(--rule);
}

.section:last-child {
  border-bottom: 0;
}

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 25px;
}

.section-title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.08;
}

.section-count,
.section-link {
  flex: 0 0 auto;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 12px;
  line-height: 1.4;
}

.section-link {
  color: var(--blue);
  text-decoration: none;
}

.section-link::after,
.text-link::after,
.entry-link::after {
  margin-left: 6px;
  content: "↗";
}

.section-link:hover,
.text-link:hover,
.entry-link:hover {
  color: var(--rust-dark);
}

/* Home */

.home-intro {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.32fr) minmax(210px, 0.48fr);
  gap: clamp(28px, 7vw, 112px);
  padding: clamp(68px, 11vw, 150px) 0 clamp(60px, 8vw, 102px);
  border-bottom: 1px solid var(--rule-dark);
}

.home-intro::before {
  position: absolute;
  top: 0;
  left: 0;
  width: 68px;
  height: 4px;
  background: var(--rust);
  content: "";
}

.home-kicker {
  margin: 0 0 18px;
  color: var(--rust-dark);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 650;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.home-title {
  max-width: 890px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(50px, 8.3vw, 104px);
  font-weight: 700;
  letter-spacing: -0.07em;
  line-height: 0.94;
}

.home-title em {
  color: var(--rust);
  font-style: normal;
}

.home-deck {
  max-width: 630px;
  margin: 28px 0 0;
  color: var(--ink-soft);
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.1vw, 25px);
  letter-spacing: -0.018em;
  line-height: 1.58;
}

.home-meta {
  align-self: end;
  padding: 14px 0 0 18px;
  border-left: 1px solid var(--rule-dark);
}

.home-meta-title {
  display: block;
  margin-bottom: 9px;
  color: var(--rust-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.home-meta p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.72;
}

.home-meta a {
  color: var(--blue);
}

.home-links,
.inline-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin: 30px 0 0;
}

.text-link,
.entry-link {
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 600;
  line-height: 1.5;
  text-decoration: none;
}

.home-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.18fr) minmax(260px, 0.62fr);
  gap: clamp(42px, 8vw, 118px);
}

.home-side-note {
  align-self: start;
  padding-top: 7px;
}

.home-side-note p {
  max-width: 340px;
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.home-side-note p + p {
  margin-top: 18px;
}

.now-note {
  position: relative;
  padding: 25px 0 26px 23px;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--rule);
}

.now-note::before {
  position: absolute;
  top: 29px;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--rust);
  content: "";
}

.now-note-label {
  display: block;
  margin-bottom: 11px;
  color: var(--rust-dark);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.now-note h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(24px, 2.8vw, 34px);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.16;
}

.now-note p {
  max-width: 650px;
  margin: 12px 0 0;
  color: var(--ink-soft);
}

/* Reusable editorial lists */

.writing-list,
.tool-list,
.build-log,
.notes-list {
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule-dark);
  list-style: none;
}

.writing-item,
.tool-row,
.build-entry,
.note-row {
  border-bottom: 1px solid var(--rule);
}

.writing-item {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr) minmax(170px, 0.35fr);
  gap: 20px;
  padding: 24px 0 25px;
}

.writing-date,
.tool-number,
.build-date,
.note-date,
.entry-date,
.article-date {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.015em;
  line-height: 1.65;
}

.writing-item h3,
.tool-row h3,
.build-entry h3,
.note-row h3 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(21px, 2.5vw, 29px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.2;
}

.writing-item h3 a,
.tool-row h3 a,
.build-entry h3 a,
.note-row h3 a {
  color: var(--ink);
  text-decoration: none;
}

.writing-item h3 a:hover,
.tool-row h3 a:hover,
.build-entry h3 a:hover,
.note-row h3 a:hover {
  color: var(--rust-dark);
}

.writing-summary,
.entry-summary,
.tool-copy,
.build-copy,
.note-copy {
  margin: 8px 0 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.68;
}

.writing-side {
  align-self: start;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.65;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 9px;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.tag,
.entry-tag {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  line-height: 1.4;
}

.tag::before,
.entry-tag::before {
  margin-right: 3px;
  color: var(--rust);
  content: "#";
}

.tool-row {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr) minmax(190px, 0.42fr) auto;
  gap: 22px;
  align-items: start;
  padding: 27px 0 29px;
}

.tool-number {
  padding-top: 4px;
  color: var(--rust-dark);
}

.tool-copy {
  margin: 0;
}

.tool-status {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 10px;
  font-weight: 650;
  letter-spacing: 0.055em;
  line-height: 1.45;
  text-transform: uppercase;
}

.tool-status::before {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  content: "";
}

.tool-status--internal::before,
.tool-status--private::before {
  background: var(--rust);
}

.tool-status--archived::before {
  background: var(--faint);
}

.tool-action {
  padding-top: 5px;
  white-space: nowrap;
}

.tool-action .entry-link {
  display: inline-block;
}

.build-entry {
  position: relative;
  display: grid;
  grid-template-columns: 122px minmax(0, 1fr);
  gap: 24px;
  padding: 26px 0 28px;
}

.build-entry::before {
  position: absolute;
  top: 34px;
  left: 111px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--rust);
  content: "";
}

.build-date {
  padding-right: 20px;
  text-align: right;
}

.build-body {
  min-width: 0;
  padding-left: 14px;
}

.build-entry h3 {
  font-size: clamp(20px, 2.25vw, 27px);
}

.note-row {
  display: grid;
  grid-template-columns: 104px minmax(0, 1fr);
  gap: 20px;
  padding: 23px 0 24px;
}

.note-row h3 {
  font-size: 20px;
}

.empty-state {
  max-width: 680px;
  padding: 26px 0 27px 22px;
  border-top: 2px solid var(--ink);
  border-bottom: 1px solid var(--rule);
  color: var(--ink-soft);
}

.empty-state p {
  margin: 0;
}

.empty-state p + p {
  margin-top: 12px;
}

/* Building page */

.building-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(260px, 0.55fr);
  gap: clamp(36px, 8vw, 118px);
  padding: clamp(42px, 6vw, 80px) 0;
  border-bottom: 1px solid var(--rule);
}

.building-intro h2,
.about-block h2 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(28px, 3.4vw, 40px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.12;
}

.building-intro p,
.about-block p {
  max-width: 690px;
  color: var(--ink-soft);
}

.building-intro p:first-of-type,
.about-block p:first-of-type {
  margin-top: 16px;
}

.building-aside {
  align-self: end;
  padding: 18px 0 0 18px;
  border-left: 1px solid var(--rule-dark);
}

.building-aside p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.building-aside .text-link {
  display: inline-block;
  margin-top: 15px;
}

/* About */

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(250px, 0.38fr);
  gap: clamp(44px, 9vw, 138px);
  padding: clamp(50px, 8vw, 96px) 0;
}

.about-block + .about-block {
  margin-top: 50px;
  padding-top: 45px;
  border-top: 1px solid var(--rule);
}

.about-block p {
  margin: 0;
  font-size: 16px;
}

.about-block p + p {
  margin-top: 16px;
}

.about-note {
  align-self: start;
  padding: 21px 0 0 20px;
  border-left: 2px solid var(--rust);
}

.about-note h2 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.1em;
  line-height: 1.4;
  text-transform: uppercase;
}

.about-note p {
  margin: 13px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
}

.contact-list {
  margin: 19px 0 0;
  padding: 0;
  border-top: 1px solid var(--rule);
  list-style: none;
}

.contact-list li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 13px;
}

.contact-list span {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
}

.contact-list a {
  color: var(--blue);
}

/* Article */

.article-header {
  width: var(--reading);
  margin: 0 auto;
  padding: clamp(60px, 10vw, 130px) 0 clamp(36px, 6vw, 64px);
  border-bottom: 1px solid var(--rule-dark);
}

.article-back {
  display: inline-block;
  margin-bottom: clamp(32px, 5vw, 52px);
  color: var(--blue);
  font-family: var(--font-mono);
  font-size: 12px;
  text-decoration: none;
}

.article-back::before {
  margin-right: 6px;
  content: "←";
}

.article-title {
  max-width: 900px;
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 700;
  letter-spacing: -0.058em;
  line-height: 1.03;
}

.article-summary {
  max-width: 690px;
  margin: 24px 0 0;
  color: var(--ink-soft);
  font-family: var(--font-serif);
  font-size: clamp(18px, 2.15vw, 24px);
  line-height: 1.62;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin: 26px 0 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.5;
}

.article-meta span + span::before {
  margin-right: 18px;
  color: var(--faint);
  content: "/";
}

.article-content,
.article-body,
.prose {
  width: var(--reading);
  margin: 0 auto;
  padding: clamp(42px, 7vw, 82px) 0 clamp(70px, 10vw, 130px);
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.92;
}

.article-content > :first-child,
.article-body > :first-child,
.prose > :first-child {
  margin-top: 0;
}

.article-content > :last-child,
.article-body > :last-child,
.prose > :last-child {
  margin-bottom: 0;
}

.article-content p,
.article-body p,
.prose p {
  margin: 0 0 1.55em;
}

.article-content h2,
.article-body h2,
.prose h2 {
  margin: 2.45em 0 0.65em;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: clamp(27px, 3.4vw, 39px);
  font-weight: 700;
  letter-spacing: -0.045em;
  line-height: 1.2;
}

.article-content h3,
.article-body h3,
.prose h3 {
  margin: 2em 0 0.6em;
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.7vw, 30px);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.25;
}

.article-content h4,
.article-body h4,
.prose h4 {
  margin: 1.75em 0 0.55em;
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.45;
}

.article-content a,
.article-body a,
.prose a {
  color: var(--blue);
}

.article-content strong,
.article-body strong,
.prose strong {
  color: var(--ink);
  font-weight: 700;
}

.article-content em,
.article-body em,
.prose em {
  font-family: var(--font-serif);
}

.article-content ul,
.article-content ol,
.article-body ul,
.article-body ol,
.prose ul,
.prose ol {
  margin: 0 0 1.5em;
  padding-left: 1.35em;
}

.article-content li + li,
.article-body li + li,
.prose li + li {
  margin-top: 0.38em;
}

.article-content li::marker,
.article-body li::marker,
.prose li::marker {
  color: var(--rust);
}

.article-content blockquote,
.article-body blockquote,
.prose blockquote {
  margin: 2em 0;
  padding: 0.15em 0 0.15em 1.25em;
  border-left: 2px solid var(--rust);
  color: var(--ink-soft);
  font-family: var(--font-serif);
  font-size: 1.09em;
  line-height: 1.72;
}

.article-content blockquote p:last-child,
.article-body blockquote p:last-child,
.prose blockquote p:last-child {
  margin-bottom: 0;
}

.article-content hr,
.article-body hr,
.prose hr {
  height: 1px;
  margin: 2.7em 0;
  border: 0;
  background: var(--rule);
}

.article-content figure,
.article-body figure,
.prose figure {
  width: min(900px, 100%);
  margin: 2.2em auto;
}

.article-content figure img,
.article-body figure img,
.prose figure img,
.article-content > img,
.article-body > img,
.prose > img {
  border: 1px solid var(--rule);
  background: var(--paper-warm);
}

.article-content figcaption,
.article-body figcaption,
.prose figcaption {
  margin-top: 9px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.article-content code,
.article-body code,
.prose code {
  padding: 0.08em 0.3em;
  border: 1px solid var(--rule);
  background: var(--paper-deep);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 0.82em;
}

.article-content pre,
.article-body pre,
.prose pre {
  margin: 1.9em 0;
  padding: 18px 20px;
  overflow-x: auto;
  border: 1px solid var(--rule-dark);
  background: #eeeadf;
  color: var(--ink);
  font-size: 0.83em;
  line-height: 1.72;
}

.article-content pre code,
.article-body pre code,
.prose pre code {
  padding: 0;
  border: 0;
  background: transparent;
  font-size: inherit;
}

.article-content table,
.article-body table,
.prose table {
  display: block;
  width: 100%;
  margin: 2em 0;
  overflow-x: auto;
  border-collapse: collapse;
  font-size: 0.9em;
  line-height: 1.6;
}

.article-content th,
.article-content td,
.article-body th,
.article-body td,
.prose th,
.prose td {
  min-width: 120px;
  padding: 10px 12px;
  border: 1px solid var(--rule);
  text-align: left;
  vertical-align: top;
}

.article-content th,
.article-body th,
.prose th {
  color: var(--ink);
  background: var(--paper-deep);
  font-weight: 700;
}

.article-footer {
  width: var(--reading);
  margin: 0 auto;
  padding: 25px 0 clamp(54px, 8vw, 92px);
  border-top: 1px solid var(--rule-dark);
}

.article-footer p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

/* Footer */

.site-footer {
  width: var(--page);
  margin: 0 auto;
  padding: 28px 0 34px;
  border-top: 1px solid var(--rule-dark);
}

.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 22px;
}

.footer-copy,
.footer-meta {
  margin: 0;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 9px 16px;
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  list-style: none;
}

.footer-links a {
  color: var(--blue);
  text-decoration: none;
}

/* Small standalone elements */

.button-link {
  display: inline-flex;
  align-items: center;
  min-height: 38px;
  padding: 7px 12px;
  border: 1px solid var(--ink);
  background: transparent;
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 650;
  letter-spacing: 0.025em;
  text-decoration: none;
  transition: background-color var(--ease), color var(--ease), border-color var(--ease);
}

.button-link:hover {
  border-color: var(--rust-dark);
  background: var(--rust-dark);
  color: var(--paper-warm);
}

.button-link--quiet {
  border-color: var(--rule-dark);
  color: var(--blue);
}

.button-link--quiet:hover {
  border-color: var(--blue);
  background: var(--blue);
}

.rule-note {
  padding-top: 16px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  line-height: 1.7;
}

.not-found {
  width: var(--reading);
  min-height: calc(100vh - 230px);
  margin: 0 auto;
  padding: clamp(72px, 14vw, 170px) 0;
}

.not-found h1 {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(48px, 9vw, 100px);
  letter-spacing: -0.07em;
  line-height: 0.9;
}

.not-found p {
  max-width: 480px;
  margin: 24px 0 0;
  color: var(--muted);
}

/* Responsive */

@media (max-width: 820px) {
  :root {
    --page: min(100% - 38px, 680px);
    --reading: min(100% - 38px, 680px);
  }

  .site-nav {
    min-height: 68px;
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
    padding: 16px 0;
  }

  .site-nav-links {
    width: 100%;
    justify-content: flex-start;
    gap: 5px 17px;
  }

  .page-header,
  .home-intro,
  .home-grid,
  .building-intro,
  .about-grid {
    grid-template-columns: 1fr;
  }

  .page-aside,
  .home-meta,
  .building-aside,
  .about-note {
    max-width: 540px;
  }

  .home-intro {
    gap: 32px;
  }

  .home-meta {
    padding-top: 15px;
  }

  .writing-item {
    grid-template-columns: 90px minmax(0, 1fr);
  }

  .writing-side {
    grid-column: 2;
  }

  .tool-row {
    grid-template-columns: 52px minmax(0, 1fr);
  }

  .tool-copy,
  .tool-action {
    grid-column: 2;
  }

  .tool-action {
    padding-top: 0;
  }

  .build-entry {
    grid-template-columns: 98px minmax(0, 1fr);
  }

  .build-entry::before {
    left: 88px;
  }

  .build-body {
    padding-left: 12px;
  }
}

@media (max-width: 560px) {
  :root {
    --page: calc(100% - 30px);
    --reading: calc(100% - 30px);
  }

  body {
    font-size: 15px;
  }

  .site-brand {
    font-size: 23px;
  }

  .site-nav-links {
    gap: 3px 13px;
    font-size: 11px;
  }

  .site-nav-links a {
    padding: 3px 0;
  }

  .page-header,
  .home-intro {
    padding-top: 53px;
  }

  .section-head {
    align-items: flex-start;
    flex-direction: column;
    gap: 9px;
  }

  .home-title {
    font-size: clamp(46px, 14vw, 68px);
    letter-spacing: -0.075em;
  }

  .writing-item,
  .note-row {
    grid-template-columns: 1fr;
    gap: 9px;
  }

  .writing-side {
    grid-column: auto;
  }

  .writing-date,
  .note-date {
    order: -1;
  }

  .tool-row {
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 13px;
  }

  .tool-row h3,
  .writing-item h3,
  .build-entry h3 {
    font-size: 23px;
  }

  .build-entry {
    grid-template-columns: 1fr;
    gap: 9px;
    padding-left: 18px;
  }

  .build-entry::before {
    top: 31px;
    left: 0;
  }

  .build-date {
    padding: 0;
    text-align: left;
  }

  .build-body {
    padding-left: 0;
  }

  .article-content,
  .article-body,
  .prose {
    font-size: 16px;
    line-height: 1.85;
  }

  .article-content pre,
  .article-body pre,
  .prose pre {
    padding: 14px 15px;
    margin-right: -2px;
    margin-left: -2px;
  }

  .article-meta {
    display: block;
  }

  .article-meta span {
    display: block;
  }

  .article-meta span + span::before {
    display: none;
  }

  .footer-grid {
    flex-direction: column;
  }

  .footer-links {
    justify-content: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media print {
  :root {
    --paper: #fff;
  }

  body {
    background: #fff;
    color: #000;
  }

  .site-header,
  .site-footer,
  .article-back,
  .home-links,
  .button-link {
    display: none;
  }

  .article-header,
  .article-content,
  .article-body,
  .prose,
  .article-footer {
    width: 100%;
  }
}