:root {
  color-scheme: light;
  --ink: #111111;
  --ink-soft: #4d4a46;
  --paper: #f7f4ef;
  --paper-deep: #eeeae3;
  --line: #c7c1b8;
  --line-dark: #8b867e;
  --blue: #0758d3;
  --blue-dark: #0648aa;
  --red: #e63220;
  --green: #35c77a;
  --terminal: #0c1116;
  --terminal-soft: #111921;
  --action-blue: #0758d3;
  --action-blue-start: #0764e8;
  --action-blue-hover: #0648aa;
  --outer: #050505;
  --outer-glow: #1b1b1b;
  --frame-glaze: rgba(255, 255, 255, 0.34);
  --frame-border: rgba(255, 255, 255, 0.6);
  --surface-faint: rgba(255, 255, 255, 0.13);
  --surface-soft: rgba(255, 255, 255, 0.16);
  --surface-raised: rgba(255, 255, 255, 0.28);
  --surface-strong: rgba(255, 255, 255, 0.3);
  --surface-rule: rgba(0, 0, 0, 0.025);
  --blue-wash: rgba(7, 88, 211, 0.07);
  --blue-wash-soft: rgba(7, 88, 211, 0.04);
  --blue-border: rgba(7, 88, 211, 0.25);
  --focus-ring: rgba(7, 88, 211, 0.45);
  --card-shadow: 0 14px 30px rgba(25, 21, 14, 0.08);
  --paper-shadow: rgba(0, 0, 0, 0.04);
  --inline-code-ink: #ab281e;
  --inline-code-bg: #ebe5dc;
  --serif: "Iowan Old Style", "Baskerville", "Times New Roman", serif;
  --sans: "Helvetica Neue", Arial, sans-serif;
  --mono: "SFMono-Regular", "Cascadia Mono", Consolas, monospace;
  --frame-radius: 19px;
  --shadow: 0 26px 80px rgba(0, 0, 0, 0.38);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --ink: #f1eee8;
  --ink-soft: #b9b5ae;
  --paper: #171918;
  --paper-deep: #222522;
  --line: #3c403d;
  --line-dark: #666b67;
  --blue: #76aaff;
  --blue-dark: #8bb6ff;
  --red: #ff6858;
  --green: #59d18f;
  --action-blue: #2367c9;
  --action-blue-start: #2d75dc;
  --action-blue-hover: #1855aa;
  --outer: #070807;
  --outer-glow: #181a19;
  --frame-glaze: rgba(255, 255, 255, 0.035);
  --frame-border: rgba(255, 255, 255, 0.1);
  --surface-faint: rgba(255, 255, 255, 0.028);
  --surface-soft: rgba(255, 255, 255, 0.04);
  --surface-raised: rgba(255, 255, 255, 0.065);
  --surface-strong: rgba(255, 255, 255, 0.085);
  --surface-rule: rgba(255, 255, 255, 0.04);
  --blue-wash: rgba(118, 170, 255, 0.1);
  --blue-wash-soft: rgba(118, 170, 255, 0.07);
  --blue-border: rgba(118, 170, 255, 0.34);
  --focus-ring: rgba(118, 170, 255, 0.55);
  --card-shadow: 0 14px 32px rgba(0, 0, 0, 0.25);
  --paper-shadow: rgba(0, 0, 0, 0.32);
  --inline-code-ink: #ff9589;
  --inline-code-bg: #2b2523;
  --shadow: 0 26px 80px rgba(0, 0, 0, 0.58);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--outer);
}

body {
  margin: 0;
  min-width: 300px;
  color: var(--ink);
  background:
    radial-gradient(circle at 50% 0, var(--outer-glow) 0, var(--outer) 36rem),
    var(--outer);
  font-family: var(--sans);
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  transition: color 180ms ease, background-color 180ms ease;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  opacity: 0.08;
  background-image:
    radial-gradient(circle at 12% 21%, white 0 0.5px, transparent 0.8px),
    radial-gradient(circle at 76% 62%, white 0 0.5px, transparent 0.8px);
  background-size: 5px 5px, 7px 7px;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 0.18em;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

:focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 4px;
}

::selection {
  color: white;
  background: var(--action-blue);
}

.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;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 9px 13px;
  color: white;
  background: var(--action-blue);
  border-radius: 6px;
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

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

.site-frame {
  width: calc(100% - 44px);
  max-width: 1460px;
  min-height: calc(100vh - 44px);
  margin: 22px auto;
  overflow: hidden;
  background:
    linear-gradient(var(--frame-glaze), transparent),
    var(--paper);
  border: 1px solid var(--frame-border);
  border-radius: var(--frame-radius);
  box-shadow: var(--shadow);
  transition: background-color 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.site-header {
  position: relative;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  height: 76px;
  padding: 0 40px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--serif);
  font-size: 26px;
  line-height: 1;
  text-decoration: none;
}

.brand i {
  width: 6px;
  height: 6px;
  background: var(--red);
  border-radius: 50%;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 42px;
  height: 100%;
  margin-left: 26px;
}

.site-nav a {
  position: relative;
  display: flex;
  align-items: center;
  height: 100%;
  font-family: var(--serif);
  font-size: 16px;
  text-decoration: none;
}

.site-nav a::after {
  position: absolute;
  right: 0;
  bottom: 17px;
  left: 0;
  height: 2px;
  content: "";
  background: var(--blue);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a.active::after {
  transform: scaleX(1);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  min-width: 44px;
  height: 44px;
  padding: 0;
  margin-left: auto;
  color: var(--ink-soft);
  cursor: pointer;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.theme-toggle:hover {
  color: var(--blue);
  background: var(--surface-raised);
  border-color: var(--line-dark);
  transform: translateY(-1px);
}

.theme-toggle-icon {
  width: 20px;
  font-family: var(--sans);
  font-size: 19px;
  font-weight: 400;
  line-height: 1;
  text-align: center;
}

.theme-toggle-icon::before {
  content: "☾";
}

html[data-theme="dark"] .theme-toggle-icon::before {
  content: "☀";
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  cursor: pointer;
  background: transparent;
  border: 0;
}

.menu-toggle i {
  display: block;
  width: 22px;
  height: 1.5px;
  margin: 5px auto;
  background: var(--ink);
  transition: transform 180ms ease, opacity 180ms ease;
}

main {
  min-height: 60vh;
}

.home,
.work-page,
.writing-page,
.resume-page,
.project-page,
.article-page,
.not-found {
  padding: 0 34px 26px;
}

.route-loading {
  display: grid;
  grid-template-columns: repeat(3, 7px);
  gap: 7px;
  place-content: center;
  min-height: 70vh;
  color: var(--ink-soft);
  text-align: center;
}

.route-loading span {
  width: 7px;
  height: 7px;
  background: var(--blue);
  border-radius: 50%;
  animation: pulse 900ms ease-in-out infinite alternate;
}

.route-loading span:nth-child(2) {
  animation-delay: 180ms;
}

.route-loading span:nth-child(3) {
  animation-delay: 360ms;
}

.route-loading p {
  grid-column: 1 / -1;
  margin: 8px 0 0;
  font-size: 12px;
}

@keyframes pulse {
  to {
    opacity: 0.2;
    transform: translateY(-6px);
  }
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(490px, 0.98fr);
  gap: clamp(34px, 5vw, 78px);
  align-items: center;
  min-height: 460px;
  padding: 30px 18px 54px;
}

.hero-copy {
  padding-left: 3px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 20px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 20px;
  height: 1px;
  content: "";
  background: currentColor;
}

.hero h1 {
  max-width: 690px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(68px, 6.4vw, 104px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.83;
}

.hero h1 span {
  display: block;
  margin-top: 17px;
  color: var(--blue);
  font-size: 0.5em;
  letter-spacing: -0.04em;
  line-height: 1;
}

.hero-lede {
  max-width: 560px;
  margin: 27px 0 0;
  font-size: clamp(16px, 1.38vw, 20px);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 26px;
  min-height: 48px;
  padding: 11px 22px;
  font-weight: 500;
  text-decoration: none;
  border: 1px solid var(--line-dark);
  border-radius: 5px;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  color: white;
  background: linear-gradient(135deg, var(--action-blue-start), var(--action-blue));
  border-color: var(--action-blue);
  box-shadow: 0 9px 22px rgba(7, 88, 211, 0.18);
}

.button.primary:hover {
  background: var(--action-blue-hover);
}

.button.small {
  min-height: 40px;
  padding: 8px 15px;
  gap: 12px;
  font-size: 13px;
}

.arrow {
  display: inline-block;
  font-size: 20px;
  line-height: 0;
  transition: transform 180ms ease;
}

a:hover .arrow,
button:hover .arrow {
  transform: translateX(4px);
}

.hero-proof {
  align-self: stretch;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.proof-kicker {
  margin: 0 0 17px;
  font-size: 13px;
  line-height: 1.25;
}

.proof-kicker span {
  color: var(--red);
}

.architecture-hero {
  display: grid;
  grid-template-columns: 1fr 22px 1fr 22px 1fr 22px 1fr 35px 1fr;
  align-items: center;
  min-width: 0;
  margin-bottom: 24px;
}

.architecture-hero .node {
  position: relative;
  display: grid;
  place-items: center;
  min-width: 0;
  height: 72px;
  padding: 10px 6px;
  font-family: var(--mono);
  font-size: 9px;
  line-height: 1.25;
  text-align: center;
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: 4px;
}

.architecture-hero .node::before {
  width: 18px;
  height: 18px;
  margin-bottom: 5px;
  content: "";
  border: 1px solid var(--line-dark);
  border-radius: 50%;
  box-shadow: inset 0 0 0 4px var(--paper);
  background: var(--line);
}

.architecture-hero .node.topic {
  border: 0;
  background: transparent;
}

.architecture-hero .node.topic::before {
  background:
    radial-gradient(circle at 50% 50%, var(--paper) 0 2px, transparent 2.5px),
    conic-gradient(from 45deg, transparent 0 12%, var(--line-dark) 12% 15%, transparent 15% 37%, var(--line-dark) 37% 40%, transparent 40% 62%, var(--line-dark) 62% 65%, transparent 65%);
  border: 0;
  box-shadow: none;
}

.architecture-hero .connector {
  position: relative;
  height: 1px;
  background: var(--line-dark);
}

.architecture-hero .connector::after {
  position: absolute;
  top: -3px;
  right: -1px;
  width: 6px;
  height: 6px;
  content: "";
  border-top: 1px solid var(--line-dark);
  border-right: 1px solid var(--line-dark);
  transform: rotate(45deg);
}

.terminal {
  position: relative;
  min-height: 173px;
  overflow: hidden;
  color: #cfdae5;
  background:
    radial-gradient(circle at 82% -20%, rgba(57, 92, 121, 0.22), transparent 50%),
    var(--terminal);
  border: 1px solid #1d252c;
  border-radius: 6px;
  box-shadow: 0 18px 25px rgba(7, 10, 13, 0.1);
}

.terminal-bar {
  display: flex;
  align-items: center;
  height: 25px;
  padding: 0 10px;
  background: rgba(255, 255, 255, 0.02);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.terminal-bar i,
.terminal-bar::before,
.terminal-bar::after {
  display: block;
  width: 6px;
  height: 6px;
  margin-right: 5px;
  content: "";
  background: #d3aa40;
  border-radius: 50%;
}

.terminal-bar::before {
  background: #d4584a;
}

.terminal-bar::after {
  background: #4aac68;
}

.terminal pre {
  margin: 0;
  padding: 16px 19px 19px;
  overflow: hidden;
  font-family: var(--mono);
  font-size: clamp(9px, 0.76vw, 12px);
  line-height: 1.65;
  white-space: pre;
}

.code-pink {
  color: #ef5c79;
}

.code-blue {
  color: #72c7f1;
}

.code-green {
  color: #8ddc69;
}

.code-yellow {
  color: #f2ca70;
}

.section {
  border-top: 1px solid var(--line-dark);
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 30px;
  padding: 14px 3px 12px;
}

.section-heading h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 23px;
  font-weight: 500;
  line-height: 1.2;
}

.section-heading a {
  color: var(--blue);
  font-family: var(--mono);
  font-size: 12px;
  text-decoration: none;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 430px), 1fr));
  gap: 14px;
  padding: 0 3px 25px;
}

.project-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(180px, 0.9fr);
  gap: 22px;
  min-height: 290px;
  padding: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 5px;
  color: inherit;
  background: var(--surface-soft);
  cursor: pointer;
  text-decoration: none;
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.project-card:hover {
  z-index: 1;
  border-color: var(--line-dark);
  box-shadow: var(--card-shadow);
  transform: translateY(-3px);
}

.project-card-main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.project-card-header {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 17px;
  align-items: start;
}

.project-number {
  color: var(--red);
  font-family: var(--serif);
  font-size: 31px;
  line-height: 1;
}

.project-card h3 {
  min-width: 0;
  margin: 1px 0 0;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.project-card-summary {
  margin: 19px 0 13px;
  font-size: 12px;
  line-height: 1.55;
}

.project-highlights {
  display: grid;
  gap: 7px;
  padding: 0;
  margin: 0 0 15px;
  list-style: none;
  font-family: var(--mono);
  font-size: 9px;
}

.project-highlights li {
  display: flex;
  gap: 8px;
  align-items: center;
}

.project-highlights li::before {
  display: grid;
  place-items: center;
  flex: 0 0 13px;
  width: 13px;
  height: 13px;
  content: "✓";
  font-size: 8px;
  border: 1px solid var(--line-dark);
  border-radius: 50%;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  width: fit-content;
  margin-top: auto;
  color: var(--blue);
  font-family: var(--mono);
  font-size: 11px;
  text-decoration: none;
}

.proof-visual {
  align-self: stretch;
  min-width: 0;
  padding: 13px;
  color: #dce8f1;
  background:
    linear-gradient(145deg, rgba(34, 47, 57, 0.65), rgba(8, 13, 18, 0.2)),
    var(--terminal);
  border: 1px solid #1f2932;
  border-radius: 5px;
}

.proof-title {
  display: block;
  margin-bottom: 15px;
  color: #7e8c98;
  font-family: var(--mono);
  font-size: 8px;
}

.planner-chart {
  height: 115px;
  padding: 8px 7px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(rgba(7, 88, 211, 0.1), rgba(7, 88, 211, 0)),
    repeating-linear-gradient(to right, transparent 0 20%, rgba(255,255,255,.035) 20% calc(20% + 1px));
}

.planner-chart strong {
  display: block;
  margin: 2px 0 17px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 400;
}

.chart-line {
  position: relative;
  height: 48px;
  overflow: hidden;
}

.chart-line::before {
  position: absolute;
  inset: 11px -6px 0;
  content: "";
  background: linear-gradient(180deg, rgba(9, 101, 231, 0.5), transparent);
  clip-path: polygon(0 75%, 11% 46%, 20% 61%, 31% 27%, 43% 55%, 55% 22%, 66% 43%, 78% 7%, 89% 37%, 100% 0, 100% 100%, 0 100%);
}

.chart-line::after {
  position: absolute;
  inset: 8px -6px 0;
  content: "";
  background: #2680ff;
  clip-path: polygon(0 75%, 11% 46%, 20% 61%, 31% 27%, 43% 55%, 55% 22%, 66% 43%, 78% 7%, 89% 37%, 100% 0, 100% 4%, 89% 41%, 78% 11%, 66% 47%, 55% 26%, 43% 59%, 31% 31%, 20% 65%, 11% 50%, 0 79%);
}

.planner-status {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  padding: 13px 4px 0;
}

.planner-status span {
  color: #7e8c98;
  font-family: var(--mono);
  font-size: 7px;
}

.planner-status b {
  display: block;
  margin-top: 5px;
  color: #dce8f1;
  font-size: 11px;
  font-weight: 400;
}

.lms-flow {
  display: grid;
  gap: 7px;
  place-content: center;
  min-height: 190px;
  font-family: var(--mono);
  font-size: 8px;
  text-align: center;
}

.lms-flow span {
  display: block;
  min-width: 110px;
  padding: 7px;
  border: 1px solid #34424d;
  border-radius: 3px;
  background: #141c23;
}

.lms-flow i {
  width: 1px;
  height: 8px;
  margin: -7px auto;
  background: #52616d;
}

.lms-flow .branch {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.lms-flow .branch span {
  min-width: 0;
  color: #9fc0d7;
}

.payment-flow {
  display: grid;
  grid-template-columns: 1fr 15px 1.25fr 15px 1fr;
  align-items: center;
  min-height: 112px;
  font-family: var(--mono);
  font-size: 7px;
  text-align: center;
}

.payment-flow span {
  display: grid;
  place-items: center;
  min-height: 54px;
  padding: 7px;
  border: 1px solid #34424d;
  border-radius: 3px;
  background: #141c23;
}

.payment-flow i {
  position: relative;
  height: 1px;
  background: #52616d;
}

.payment-flow i::after {
  position: absolute;
  top: -2px;
  right: 0;
  width: 5px;
  height: 5px;
  content: "";
  border-top: 1px solid #52616d;
  border-right: 1px solid #52616d;
  transform: rotate(45deg);
}

.payment-signals {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 5px;
  padding-top: 13px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.payment-signals span {
  color: #7e8c98;
  font-family: var(--mono);
  font-size: 6px;
}

.payment-signals b {
  display: block;
  margin-top: 5px;
  color: #dce8f1;
  font-size: 8px;
  font-weight: 400;
}

.generic-system {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  min-height: 170px;
  place-content: center;
}

.generic-system span {
  display: grid;
  place-items: center;
  min-height: 57px;
  padding: 8px;
  color: #b9cad6;
  border: 1px solid #34424d;
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 7px;
  text-align: center;
}

.writing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 340px), 1fr));
  gap: 14px;
  padding: 0 3px 35px;
}

.article-card {
  display: grid;
  grid-template-columns: 118px 1fr;
  gap: 21px;
  min-height: 205px;
  padding: 17px;
  color: inherit;
  text-decoration: none;
  border: 1px solid var(--line);
  border-radius: 5px;
  background: var(--surface-soft);
  transition: color 180ms ease, background-color 180ms ease, border-color 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.article-card:hover {
  border-color: var(--line-dark);
  box-shadow: var(--card-shadow);
  transform: translateY(-3px);
}

.article-visual {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 120px;
  border: 1px solid var(--line);
  background:
    repeating-linear-gradient(0deg, transparent 0 14px, var(--surface-rule) 14px 15px),
    var(--surface-soft);
}

.article-visual.document::before {
  width: 45px;
  height: 63px;
  content: "";
  background:
    linear-gradient(var(--ink), var(--ink)) 8px 15px / 28px 1px no-repeat,
    linear-gradient(var(--ink-soft), var(--ink-soft)) 8px 24px / 24px 1px no-repeat,
    linear-gradient(var(--ink-soft), var(--ink-soft)) 8px 33px / 29px 1px no-repeat,
    linear-gradient(var(--ink-soft), var(--ink-soft)) 8px 42px / 20px 1px no-repeat;
  border: 1px solid var(--line-dark);
  box-shadow: 6px 6px 0 var(--paper-shadow);
}

.article-visual.flow::before {
  width: 65px;
  height: 55px;
  content: "";
  background:
    linear-gradient(var(--line-dark), var(--line-dark)) 12px 13px / 42px 1px no-repeat,
    linear-gradient(var(--line-dark), var(--line-dark)) 12px 41px / 42px 1px no-repeat;
  border: 1px solid var(--line-dark);
  clip-path: polygon(0 0, 39% 0, 39% 23%, 61% 23%, 61% 0, 100% 0, 100% 53%, 61% 53%, 61% 100%, 39% 100%, 39% 53%, 0 53%);
}

.article-visual.code::before {
  width: 62px;
  height: 67px;
  padding: 8px;
  content: "func run() {\A  queue.Push(job)\A}\A\A// process";
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 6px;
  line-height: 1.9;
  white-space: pre;
  border: 1px solid var(--line-dark);
}

.article-card-meta {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.45;
}

.article-card h3 {
  margin: 9px 0 10px;
  font-family: var(--serif);
  font-size: 21px;
  font-weight: 500;
  line-height: 1.12;
}

.article-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 7px 12px;
  padding: 0;
  margin: 15px 0 0;
  color: var(--blue);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.35;
  list-style: none;
}

.tags li::before {
  content: "#";
}

.about-strip {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(310px, 0.85fr);
  gap: 28px 52px;
  align-items: center;
  padding: 29px 3px 34px;
}

.about-intro {
  display: grid;
  grid-template-columns: 95px 1fr;
  gap: 20px;
  align-items: center;
}

.portrait-mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 95px;
  height: 95px;
  overflow: hidden;
  color: white;
  font-family: var(--serif);
  font-size: 26px;
  background:
    radial-gradient(circle at 46% 32%, #d9d9d9 0 12%, transparent 12.5%),
    radial-gradient(ellipse at 48% 72%, #2b2b2b 0 30%, transparent 30.5%),
    linear-gradient(135deg, #e7e7e7, #9d9d9d);
  border-radius: 50%;
  filter: grayscale(1);
}

.portrait-mark::after {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  content: "SK";
  color: rgba(255, 255, 255, 0.95);
  background: rgba(0, 0, 0, 0.16);
  mix-blend-mode: difference;
}

.about-intro h2,
.contact-block h2 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 24px;
  font-weight: 500;
  line-height: 1.15;
}

.about-intro p,
.contact-block p {
  margin: 0 0 12px;
  font-size: 15px;
  line-height: 1.6;
}

.about-divider {
  display: none;
}

.about-intro .text-link {
  font-size: 12px;
}

.contact-list {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.45;
  list-style: none;
}

.contact-list a {
  overflow-wrap: anywhere;
  text-decoration: none;
}

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

.contact-list li::before {
  display: inline-block;
  width: 20px;
  color: var(--blue);
  content: "↳";
}

.work-archive {
  padding-top: 10px;
}

.work-archive .section-heading span {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 9px;
}

.experience-row {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 38px;
  padding: 30px 3px 38px;
}

.experience-row h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: 25px;
  font-weight: 500;
}

.experience-heading {
  display: grid;
  gap: 18px;
  align-content: start;
}

.experience-heading .text-link {
  width: fit-content;
  color: var(--blue);
  font-size: 13px;
}

.experience-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
}

.experience-item {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 20px;
}

.experience-item time {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 11px;
  line-height: 1.45;
}

.experience-item h3 {
  margin: 0;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 500;
  line-height: 1.2;
}

.experience-item span {
  display: block;
  margin: 4px 0 10px;
  color: var(--blue);
  font-family: var(--mono);
  font-size: 11px;
}

.experience-item p {
  margin: 0;
  font-size: 14px;
  line-height: 1.6;
}

/* Résumé */
.resume-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(330px, 0.75fr);
  gap: clamp(44px, 7vw, 100px);
  align-items: center;
  min-height: 430px;
  padding: 48px 18px 58px;
  border-bottom: 1px solid var(--line-dark);
}

.resume-hero h1 {
  max-width: 780px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(66px, 6.8vw, 102px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.88;
}

.resume-hero h1 span {
  display: block;
  margin-top: 14px;
  color: var(--blue);
  font-size: 0.48em;
  letter-spacing: -0.04em;
  line-height: 1;
}

.resume-hero-lede {
  max-width: 660px;
  margin: 27px 0 0;
  color: var(--ink-soft);
  font-size: 18px;
  line-height: 1.6;
}

.resume-contact-card {
  position: relative;
  display: grid;
  gap: 22px;
  min-width: 0;
  padding: 30px;
  overflow: hidden;
  color: #f4f7f9;
  background:
    radial-gradient(circle at 100% 0, rgba(69, 130, 207, 0.24), transparent 45%),
    var(--terminal);
  border: 1px solid #263641;
  border-radius: 7px;
  box-shadow: 0 20px 38px rgba(7, 10, 13, 0.16);
}

.resume-contact-card::before {
  position: absolute;
  top: 17px;
  right: 18px;
  width: 8px;
  height: 8px;
  content: "";
  background: var(--red);
  border-radius: 50%;
}

.resume-contact-card > div:not(.resume-actions) {
  display: grid;
  gap: 4px;
}

.resume-contact-card strong,
.resume-contact-card a {
  min-width: 0;
  overflow-wrap: anywhere;
}

.resume-contact-label {
  color: #9aabb7;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.resume-contact-card strong {
  font-family: var(--serif);
  font-size: 22px;
  font-weight: 500;
}

.resume-contact-card > div > a {
  color: #dce7ee;
  font-size: 14px;
}

.resume-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  padding-top: 4px;
}

.resume-actions .button {
  gap: 13px;
  min-width: 0;
  padding-right: 14px;
  padding-left: 14px;
  font-size: 13px;
}

.resume-email-button {
  color: #f4f7f9;
  border-color: #52636f;
}

.resume-email-button:hover {
  color: white;
  background: #1a252e;
  border-color: #758896;
}

.download-icon {
  font-family: var(--sans);
  font-size: 20px;
  line-height: 1;
}

.resume-layout {
  display: grid;
  grid-template-columns: 210px minmax(0, 780px);
  gap: clamp(48px, 7vw, 92px);
  justify-content: center;
  padding: 58px 18px 70px;
}

.resume-index {
  position: sticky;
  top: 28px;
  align-self: start;
  padding: 20px 18px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: 5px;
}

.resume-index > strong {
  display: block;
  margin-bottom: 14px;
  color: var(--blue);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.resume-index nav {
  display: grid;
  gap: 4px;
}

.resume-index nav a {
  padding: 5px 0;
  color: var(--ink-soft);
  font-size: 14px;
  text-decoration: none;
  transition: color 160ms ease, transform 160ms ease;
}

.resume-index nav a:hover {
  color: var(--blue);
  transform: translateX(3px);
}

.resume-index p {
  padding-top: 15px;
  margin: 16px 0 0;
  color: var(--ink-soft);
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 10px;
  line-height: 1.55;
}

.resume-content {
  min-width: 0;
  font-size: 16px;
  line-height: 1.7;
}

.resume-content > h2 {
  padding-top: 20px;
  margin: 64px 0 28px;
  font-family: var(--serif);
  font-size: 42px;
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1;
  border-top: 1px solid var(--line-dark);
}

.resume-content > h2:first-child {
  padding-top: 0;
  margin-top: 0;
  border-top: 0;
}

.resume-content h3 {
  margin: 34px 0 8px;
  font-family: var(--serif);
  font-size: 29px;
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: 1.15;
}

.resume-content h2 + h3 {
  margin-top: 0;
}

.resume-content p {
  margin: 0 0 20px;
  color: var(--ink-soft);
}

.resume-content h3 + p {
  margin-bottom: 18px;
  color: var(--blue);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.55;
}

.resume-content ul {
  display: grid;
  gap: 11px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.resume-content li {
  position: relative;
  padding-left: 24px;
}

.resume-content li::before {
  position: absolute;
  top: 0.63em;
  left: 2px;
  width: 7px;
  height: 7px;
  content: "";
  background: var(--blue);
  border-radius: 50%;
}

.resume-content #skills + ul {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.resume-content #skills + ul li {
  min-height: 74px;
  padding: 15px 16px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 5px;
}

.resume-content #skills + ul li::before {
  display: none;
}

.resume-content #skills + ul strong {
  display: block;
  margin-bottom: 3px;
  color: var(--blue);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Writing index */
.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
  gap: 70px;
  align-items: end;
  padding: 76px 18px 56px;
  border-bottom: 1px solid var(--line-dark);
}

.page-hero h1,
.project-hero h1 {
  max-width: 850px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(58px, 7vw, 100px);
  font-weight: 500;
  letter-spacing: -0.055em;
  line-height: 0.9;
}

.page-hero h1 span {
  color: var(--blue);
}

.writing-page .page-hero h1 {
  max-width: 780px;
  font-size: clamp(56px, 6vw, 88px);
  line-height: 0.94;
}

.page-hero p {
  max-width: 460px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.55;
}

.writing-list {
  display: grid;
  padding: 0 3px 30px;
}

.writing-list-item {
  display: grid;
  grid-template-columns: 140px minmax(0, 1.1fr) minmax(240px, 0.7fr) 30px;
  gap: 35px;
  align-items: center;
  min-height: 184px;
  padding: 30px 8px;
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  transition: color 180ms ease, padding 180ms ease;
}

.writing-list-item:hover {
  color: var(--blue);
  padding-left: 17px;
}

.writing-list-item .meta {
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.5;
}

.writing-list-item h2 {
  margin: 0;
  color: var(--ink);
  font-family: var(--serif);
  font-size: clamp(25px, 2.4vw, 35px);
  font-weight: 500;
  line-height: 1.05;
}

.writing-list-item p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.55;
}

.writing-list-item .arrow {
  color: var(--blue);
}

/* Project case study */
.project-page {
  padding-bottom: 45px;
}

.project-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(360px, 0.88fr);
  gap: 60px;
  align-items: center;
  min-height: 510px;
  padding: 55px 18px;
  border-bottom: 1px solid var(--line-dark);
}

.project-hero h1 {
  font-size: clamp(49px, 5.6vw, 78px);
}

.project-hero .summary {
  max-width: 650px;
  margin: 25px 0;
  font-size: 17px;
  line-height: 1.6;
}

.stack-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding: 0;
  margin: 22px 0 0;
  list-style: none;
}

.stack-list li {
  padding: 5px 9px;
  color: var(--blue);
  background: var(--blue-wash);
  border: 1px solid var(--blue-border);
  border-radius: 2px;
  font-family: var(--mono);
  font-size: 9px;
}

.project-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.project-hero-visual {
  min-height: 330px;
}

.project-hero-visual .proof-visual {
  min-height: 330px;
}

.project-hero-visual .planner-chart {
  height: 200px;
}

.project-hero-visual .chart-line {
  height: 110px;
}

.project-hero-visual .lms-flow {
  min-height: 280px;
  gap: 15px;
  font-size: 10px;
}

.project-hero-visual .payment-flow {
  min-height: 190px;
  font-size: 10px;
}

.project-hero-visual .payment-flow span {
  min-height: 78px;
}

.project-hero-visual .payment-signals {
  padding-top: 21px;
}

.project-hero-visual .payment-signals span {
  font-size: 8px;
}

.project-hero-visual .payment-signals b {
  font-size: 10px;
}

.project-hero-visual .lms-flow span {
  padding: 12px;
}

.case-study-grid {
  display: grid;
  grid-template-columns: minmax(250px, 0.65fr) minmax(0, 1.35fr);
  gap: 75px;
  padding: 54px 18px 20px;
}

.case-study-aside {
  position: sticky;
  top: 30px;
  align-self: start;
}

.case-study-aside h2,
.case-study-body h2 {
  margin: 0 0 16px;
  font-family: var(--serif);
  font-size: 30px;
  font-weight: 500;
}

.case-study-aside p,
.case-study-body > p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.75;
}

.context-note {
  padding: 13px;
  margin-top: 22px !important;
  color: var(--ink-soft);
  background: var(--blue-wash-soft);
  border-left: 2px solid var(--blue);
  font-family: var(--mono);
  font-size: 9px !important;
}

.case-study-body {
  display: grid;
  gap: 48px;
}

.approach-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  counter-reset: approach;
}

.approach-card {
  min-height: 190px;
  padding: 18px;
  border: 1px solid var(--line);
  background: var(--surface-faint);
  counter-increment: approach;
}

.approach-card::before {
  display: block;
  margin-bottom: 25px;
  color: var(--red);
  content: "0" counter(approach);
  font-family: var(--serif);
  font-size: 23px;
}

.approach-card h3 {
  margin: 0 0 8px;
  font-family: var(--serif);
  font-size: 19px;
  font-weight: 500;
}

.approach-card p {
  margin: 0;
  color: var(--ink-soft);
  font-size: 11px;
  line-height: 1.65;
}

.architecture-strip {
  display: flex;
  align-items: stretch;
  padding: 25px;
  color: #e7edf2;
  background: var(--terminal);
  border-radius: 5px;
}

.architecture-strip span {
  display: grid;
  place-items: center;
  flex: 1;
  min-height: 82px;
  padding: 12px;
  font-family: var(--mono);
  font-size: 9px;
  text-align: center;
  border: 1px solid #34414b;
  border-radius: 3px;
}

.architecture-strip i {
  position: relative;
  align-self: center;
  width: 28px;
  height: 1px;
  background: #596671;
}

.architecture-strip i::after {
  position: absolute;
  top: -3px;
  right: 0;
  width: 6px;
  height: 6px;
  content: "";
  border-top: 1px solid #596671;
  border-right: 1px solid #596671;
  transform: rotate(45deg);
}

.results-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding: 0;
  margin: 0;
  list-style: none;
  counter-reset: result;
}

.results-list li {
  min-height: 105px;
  padding: 16px;
  border: 1px solid var(--line);
  counter-increment: result;
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.35;
}

.results-list li::before {
  display: block;
  margin-bottom: 14px;
  color: var(--red);
  content: "0" counter(result);
  font-family: var(--mono);
  font-size: 9px;
}

.case-study-nav {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 36px 18px 0;
  margin-top: 45px;
  border-top: 1px solid var(--line-dark);
}

/* Article reader */
.article-page {
  padding-bottom: 70px;
}

.article-header {
  max-width: 970px;
  padding: 70px 18px 48px;
  margin: 0 auto;
  text-align: center;
  border-bottom: 1px solid var(--line);
}

.article-header .eyebrow {
  justify-content: center;
}

.article-header h1 {
  max-width: 850px;
  margin: 0 auto;
  font-family: var(--serif);
  font-size: clamp(44px, 5.3vw, 72px);
  font-weight: 500;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.article-header .article-excerpt {
  max-width: 660px;
  margin: 24px auto 0;
  color: var(--ink-soft);
  font-size: 16px;
}

.article-meta-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 24px;
  color: var(--ink-soft);
  font-family: var(--mono);
  font-size: 12px;
  line-height: 1.4;
}

.article-meta-row span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 5px 10px;
  background: var(--surface-raised);
  border: 1px solid var(--line);
  border-radius: 999px;
}

.article-meta-row span:last-child {
  color: var(--blue);
  border-color: var(--blue-border);
}

.article-tools {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 25px;
}

.article-tools button {
  display: inline-flex;
  gap: 9px;
  align-items: center;
  min-height: 46px;
  padding: 8px 16px 8px 10px;
  cursor: pointer;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.article-tool-icon {
  display: grid;
  place-items: center;
  flex: 0 0 28px;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  font-family: var(--sans);
  font-size: 16px;
  font-weight: 500;
  line-height: 1;
}

.article-tools [data-share] {
  color: white;
  background: var(--action-blue);
  border-color: var(--action-blue);
  box-shadow: 0 8px 20px rgba(7, 88, 211, 0.18);
}

.article-tools [data-share] .article-tool-icon {
  background: rgba(255, 255, 255, 0.16);
}

.article-tools [data-copy-link] {
  color: var(--blue);
  background: var(--blue-wash-soft);
  border-color: var(--blue-border);
}

.article-tools [data-copy-link] .article-tool-icon {
  background: var(--blue-wash);
}

.article-tools [data-share]:hover {
  background: var(--action-blue-hover);
  border-color: var(--action-blue-hover);
  box-shadow: 0 11px 24px rgba(7, 88, 211, 0.25);
  transform: translateY(-2px);
}

.article-tools [data-copy-link]:hover {
  color: white;
  background: var(--action-blue);
  border-color: var(--action-blue);
  transform: translateY(-2px);
}

.article-layout {
  display: grid;
  grid-template-columns: 235px minmax(0, 720px);
  gap: 64px;
  justify-content: center;
  padding: 48px 18px 0;
}

.article-toc {
  position: sticky;
  top: 30px;
  align-self: start;
  padding: 18px;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-left: 3px solid var(--blue);
  border-radius: 4px;
}

.article-toc strong {
  display: block;
  margin-bottom: 16px;
  color: var(--blue);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.article-toc ol {
  display: grid;
  gap: 11px;
  padding: 0;
  margin: 0;
  list-style: none;
}

.article-toc li.level-3 {
  padding-left: 12px;
}

.article-toc li.level-1 {
  font-weight: 600;
}

.article-toc a {
  display: block;
  padding: 2px 0;
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.45;
  text-decoration: none;
  transition: color 160ms ease, transform 160ms ease;
}

.article-toc a:hover,
.article-toc a.active {
  color: var(--blue);
  transform: translateX(3px);
}

.article-toc a.active {
  font-weight: 600;
}

.article-content {
  min-width: 0;
  font-family: var(--serif);
  font-size: 20px;
  line-height: 1.75;
}

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

.article-content h1,
.article-content h2,
.article-content h3 {
  scroll-margin-top: 30px;
  margin: 2.4em 0 0.6em;
  font-weight: 500;
  line-height: 1.1;
}

.article-content h1 {
  font-size: 48px;
}

.article-content h2 {
  font-size: 39px;
}

.article-content h3 {
  font-size: 28px;
}

.article-content p {
  margin: 0 0 1.25em;
}

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

.article-content blockquote {
  padding: 2px 0 2px 22px;
  margin: 1.7em 0;
  color: var(--ink-soft);
  border-left: 3px solid var(--blue);
}

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

.article-content ul,
.article-content ol {
  padding-left: 1.25em;
  margin: 0 0 1.4em;
}

.article-content li {
  padding-left: 0.35em;
  margin-bottom: 0.35em;
}

.article-content hr {
  height: 1px;
  margin: 2.7em 0;
  background: var(--line-dark);
  border: 0;
}

.article-content img {
  display: block;
  width: 100%;
  height: auto;
  margin: 1.8em 0;
  border: 1px solid var(--line);
  border-radius: 5px;
}

.table-scroll {
  width: 100%;
  margin: 1.8em 0;
  overflow-x: auto;
  outline-offset: 3px;
}

.article-content table {
  width: 100%;
  margin: 0;
  border-spacing: 0;
  border-collapse: collapse;
  font-family: var(--sans);
  font-size: 13px;
  line-height: 1.5;
}

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

.article-content th {
  background: var(--paper-deep);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.article-content .align-center {
  text-align: center;
}

.article-content .align-right {
  text-align: right;
}

.article-content code:not(pre code) {
  padding: 0.12em 0.35em;
  color: var(--inline-code-ink);
  background: var(--inline-code-bg);
  border-radius: 3px;
  font-family: var(--mono);
  font-size: 0.75em;
}

.code-block {
  position: relative;
  margin: 2em 0;
  color: #d4dee6;
  background: var(--terminal);
  border: 1px solid #25333e;
  border-radius: 6px;
  box-shadow: 0 18px 32px rgba(0, 0, 0, 0.13);
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 48px;
  padding: 0 12px 0 16px;
  color: #d8e4eb;
  background: rgba(255, 255, 255, 0.045);
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  font-family: var(--mono);
  font-size: 11px;
}

.code-block-header > span {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 9px;
  color: #e5eef4;
  background: #202c35;
  border: 1px solid #40515e;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
}

.code-copy {
  min-height: 34px;
  padding: 6px 12px;
  color: #f1f6f9;
  cursor: pointer;
  background: #1c2933;
  border: 1px solid #526675;
  border-radius: 4px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  transition: background 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.code-copy:hover {
  color: white;
  background: var(--action-blue);
  border-color: #4d91f0;
  transform: translateY(-1px);
}

.code-block pre {
  margin: 0;
  padding: 21px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 13px;
  line-height: 1.65;
}

.token-comment {
  color: #6d7b86;
}

.token-string {
  color: #8cd46b;
}

.token-keyword {
  color: #ed6580;
}

.token-number {
  color: #e7b75c;
}

.token-type {
  color: #6fc7f1;
}

.reading-progress {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 90;
  height: 3px;
  pointer-events: none;
}

.reading-progress span {
  display: block;
  width: 0;
  height: 100%;
  background: var(--action-blue);
}

.back-to-top {
  position: fixed;
  right: max(22px, calc((100vw - 1460px) / 2 + 22px));
  bottom: 22px;
  z-index: 95;
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  padding: 0;
  color: white;
  cursor: pointer;
  visibility: hidden;
  background: var(--action-blue);
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  box-shadow: 0 12px 28px rgba(7, 88, 211, 0.28);
  opacity: 0;
  pointer-events: none;
  transform: translateY(12px) scale(0.9);
  transition: visibility 180ms, opacity 180ms ease, background 180ms ease, box-shadow 180ms ease, transform 180ms ease;
}

.back-to-top span {
  font-family: var(--sans);
  font-size: 23px;
  line-height: 1;
  transform: translateY(-1px);
}

.back-to-top.visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.back-to-top.visible:hover {
  background: var(--action-blue-hover);
  box-shadow: 0 15px 32px rgba(7, 88, 211, 0.36);
  transform: translateY(-3px);
}

.back-to-top:disabled {
  cursor: default;
}

.toast {
  position: fixed;
  right: 26px;
  bottom: 88px;
  z-index: 100;
  display: flex;
  align-items: center;
  min-height: 48px;
  max-width: min(360px, calc(100vw - 52px));
  padding: 13px 18px;
  color: white;
  pointer-events: none;
  background: var(--terminal);
  border: 1px solid #3c4b57;
  border-radius: 6px;
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.32);
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.not-found {
  display: grid;
  place-items: center;
  min-height: 68vh;
  text-align: center;
}

.not-found h1 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(70px, 10vw, 140px);
  font-weight: 500;
  letter-spacing: -0.06em;
}

.not-found p {
  margin: 0 0 22px;
  color: var(--ink-soft);
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms cubic-bezier(0.22, 1, 0.36, 1), transform 600ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal.in-view {
  opacity: 1;
  transform: none;
}

@media (max-width: 1100px) {
  .hero {
    grid-template-columns: 1fr 0.9fr;
    gap: 40px;
  }

  .hero h1 {
    font-size: clamp(60px, 7.5vw, 80px);
  }

  .architecture-hero {
    grid-template-columns: 1fr 15px 1fr 15px 1fr;
  }

  .architecture-hero > :nth-child(n + 6) {
    display: none;
  }

  .project-card {
    grid-template-columns: 1fr;
  }

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

  .proof-visual {
    min-height: 205px;
  }

  .about-strip {
    grid-template-columns: 1fr 1fr;
  }

  .about-divider {
    display: none;
  }

  .resume-hero {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.75fr);
    gap: 42px;
  }

  .resume-actions {
    grid-template-columns: 1fr;
  }

  .resume-layout {
    grid-template-columns: 190px minmax(0, 720px);
    gap: 48px;
  }

}

@media (max-width: 820px) {
  html {
    background: var(--paper);
  }

  body {
    background: var(--paper);
  }

  body::before {
    display: none;
  }

  .site-frame {
    width: 100%;
    min-height: 100vh;
    margin: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .site-header {
    height: 70px;
    padding: 0 22px;
  }

  .brand {
    font-size: 24px;
    margin-right: auto;
  }

  .menu-toggle {
    display: block;
  }

  .theme-toggle {
    width: 44px;
    min-width: 44px;
    margin-left: 5px;
  }

  .menu-toggle[aria-expanded="true"] i:nth-of-type(1) {
    transform: translateY(6.5px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] i:nth-of-type(2) {
    opacity: 0;
  }

  .menu-toggle[aria-expanded="true"] i:nth-of-type(3) {
    transform: translateY(-6.5px) rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: 65px;
    right: 15px;
    display: grid;
    gap: 0;
    width: min(230px, calc(100vw - 30px));
    height: auto;
    padding: 7px;
    margin-left: 0;
    visibility: hidden;
    background: var(--paper);
    border: 1px solid var(--line-dark);
    border-radius: 5px;
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.18);
    opacity: 0;
    transform: translateY(-6px);
    transition: opacity 150ms ease, transform 150ms ease, visibility 150ms, background-color 180ms ease, border-color 180ms ease;
  }

  .site-nav.open {
    visibility: visible;
    opacity: 1;
    transform: none;
  }

  .site-nav a {
    height: 44px;
    padding: 0 13px;
    font-size: 18px;
  }

  .site-nav a::after {
    right: auto;
    bottom: 6px;
    left: 13px;
    width: 30px;
  }

  .home,
  .work-page,
  .writing-page,
  .resume-page,
  .project-page,
  .article-page,
  .not-found {
    padding-right: 14px;
    padding-left: 14px;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 58px 0 31px;
  }

  .hero-copy {
    padding: 0 2px;
  }

  .eyebrow {
    margin-bottom: 15px;
  }

  .hero h1 {
    font-size: clamp(52px, 14vw, 72px);
    line-height: 0.87;
  }

  .hero h1 span {
    margin-top: 10px;
    font-size: 0.51em;
  }

  .hero-lede {
    margin-top: 17px;
    font-size: 15px;
    line-height: 1.5;
  }

  .hero-actions {
    flex-wrap: nowrap;
    gap: 9px;
    margin-top: 24px;
  }

  .button {
    min-height: 45px;
    padding: 9px 14px;
    gap: 15px;
    font-size: 12px;
  }

  .hero-proof {
    display: none;
  }

  .section-heading {
    padding-top: 12px;
  }

  .section-heading h2 {
    font-size: 20px;
  }

  .project-grid,
  .writing-grid {
    display: flex;
    gap: 10px;
    width: calc(100% + 28px);
    padding: 0 14px 25px;
    margin-right: -14px;
    margin-left: -14px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    scrollbar-width: none;
  }

  .writing-grid {
    padding-bottom: 34px;
  }

  .project-grid::-webkit-scrollbar,
  .writing-grid::-webkit-scrollbar {
    display: none;
  }

  .project-card {
    flex: 0 0 min(88vw, 390px);
    grid-template-columns: 1fr;
    min-height: 420px;
    scroll-snap-align: start;
  }

  .project-card h3 {
    font-size: 18px;
  }

  .proof-visual {
    min-height: 200px;
  }

  .article-card {
    flex: 0 0 min(88vw, 390px);
    grid-template-columns: 82px 1fr;
    min-height: 220px;
    scroll-snap-align: start;
  }

  .article-card h3 {
    font-size: 20px;
  }

  .about-strip {
    grid-template-columns: 1fr;
    gap: 30px;
    padding: 30px 2px 34px;
  }

  .about-intro {
    grid-template-columns: 72px 1fr;
  }

  .portrait-mark {
    width: 72px;
    height: 72px;
  }

  .about-intro p,
  .contact-block p,
  .experience-item p {
    font-size: 15px;
  }

  .contact-list {
    gap: 9px;
    font-size: 14px;
  }

  .experience-row {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 30px 2px 36px;
  }

  .experience-list {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .resume-hero {
    grid-template-columns: 1fr;
    gap: 32px;
    min-height: auto;
    padding: 54px 2px 40px;
  }

  .resume-hero h1 {
    font-size: clamp(52px, 14vw, 72px);
  }

  .resume-hero-lede {
    margin-top: 20px;
    font-size: 16px;
  }

  .resume-contact-card {
    padding: 25px;
  }

  .resume-actions {
    grid-template-columns: 1fr 1fr;
  }

  .resume-layout {
    grid-template-columns: 1fr;
    gap: 36px;
    padding: 38px 2px 54px;
  }

  .resume-index {
    position: static;
  }

  .resume-index nav {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 2px 12px;
  }

  .resume-index p {
    display: none;
  }

  .resume-content {
    font-size: 16px;
  }

  .resume-content > h2 {
    margin-top: 52px;
    font-size: 36px;
  }

  .resume-content h3 {
    font-size: 27px;
  }

  .back-to-top {
    right: 16px;
    bottom: 16px;
    width: 48px;
    height: 48px;
  }

  .toast {
    right: 16px;
    bottom: 76px;
    max-width: calc(100vw - 32px);
  }

  .page-hero {
    grid-template-columns: 1fr;
    gap: 24px;
    padding: 56px 2px 35px;
  }

  .page-hero h1 {
    font-size: clamp(54px, 16vw, 76px);
  }

  .writing-page .page-hero h1 {
    font-size: clamp(50px, 14vw, 68px);
  }

  .page-hero p {
    font-size: 15px;
  }

  .writing-list-item {
    grid-template-columns: 1fr 24px;
    gap: 9px 14px;
    padding: 24px 2px;
  }

  .writing-list-item .meta,
  .writing-list-item p {
    grid-column: 1 / -1;
  }

  .writing-list-item .arrow {
    grid-column: 2;
    grid-row: 2;
  }

  .writing-list-item h2 {
    grid-column: 1;
    grid-row: 2;
  }

  .project-hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding: 48px 2px 38px;
  }

  .project-hero h1 {
    font-size: clamp(48px, 13vw, 70px);
  }

  .project-hero-visual {
    min-height: 280px;
  }

  .case-study-grid {
    grid-template-columns: 1fr;
    gap: 38px;
    padding: 38px 2px 0;
  }

  .case-study-aside {
    position: static;
  }

  .approach-grid {
    grid-template-columns: 1fr;
  }

  .results-list {
    grid-template-columns: 1fr;
  }

  .approach-card {
    min-height: auto;
  }

  .architecture-strip {
    flex-direction: column;
  }

  .architecture-strip i {
    width: 1px;
    height: 25px;
    margin: 0 auto;
  }

  .architecture-strip i::after {
    top: auto;
    right: -3px;
    bottom: 0;
    transform: rotate(135deg);
  }

  .article-header {
    padding: 56px 2px 38px;
    text-align: left;
  }

  .article-header .eyebrow {
    justify-content: flex-start;
  }

  .article-header h1 {
    font-size: clamp(40px, 11.5vw, 58px);
  }

  .article-header .article-excerpt {
    margin-right: 0;
    margin-left: 0;
  }

  .article-meta-row,
  .article-tools {
    justify-content: flex-start;
  }

  .article-layout {
    grid-template-columns: 1fr;
    gap: 32px;
    padding: 34px 2px 0;
  }

  .article-toc {
    position: static;
  }

  .article-content {
    font-size: 18px;
  }

  .article-content h2 {
    font-size: 34px;
  }

  .article-content h1 {
    font-size: 39px;
  }

  .article-content h3 {
    font-size: 26px;
  }

  .code-block {
    width: calc(100% + 32px);
    margin-right: -16px;
    margin-left: -16px;
    border-radius: 0;
  }

  .code-block pre {
    font-size: 12px;
  }
}

@media (max-width: 390px) {
  .hero h1 {
    font-size: 48px;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
  }

  .button {
    gap: 10px;
  }

  .section-heading a {
    font-size: 11px;
  }

  .experience-item {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .resume-contact-card {
    padding: 22px 18px;
  }

  .resume-actions,
  .resume-content #skills + ul {
    grid-template-columns: 1fr;
  }

  .resume-index nav {
    grid-template-columns: 1fr 1fr;
  }

  .about-intro {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .article-card {
    grid-template-columns: 1fr;
    min-height: 0;
  }

  .article-card h3 {
    font-size: 20px;
  }

  .article-visual {
    min-height: 108px;
  }
}

@media print {
  :root,
  html[data-theme="dark"] {
    --ink: #111111;
    --ink-soft: #4d4a46;
    --paper: #ffffff;
    --paper-deep: #eeeae3;
    --line: #c7c1b8;
    --line-dark: #8b867e;
    --blue: #0758d3;
    --surface-faint: transparent;
    --surface-soft: transparent;
    --surface-raised: transparent;
    --surface-strong: transparent;
    color-scheme: light;
  }

  html,
  body {
    color: #111;
    background: white;
  }

  body::before,
  .site-header,
  .resume-index,
  .resume-actions,
  .reading-progress,
  .toast {
    display: none !important;
  }

  .site-frame {
    width: 100%;
    margin: 0;
    background: white;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .resume-page {
    padding: 0;
  }

  .resume-hero {
    grid-template-columns: 1fr 0.55fr;
    min-height: auto;
    padding: 24px 0;
  }

  .resume-hero h1 {
    font-size: 52px;
  }

  .resume-contact-card {
    padding: 18px;
    color: white;
    box-shadow: none;
  }

  .resume-layout {
    display: block;
    padding: 28px 0 0;
  }

  .resume-content > h2 {
    break-after: avoid;
    margin-top: 34px;
  }

  .resume-content h3,
  .resume-content h3 + p {
    break-after: avoid;
  }

  .resume-content ul {
    break-inside: avoid;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}