:root {
  --color-bg: #e8e6df;
  --color-surface: #f3f1ea;
  --color-text: #111111;
  --color-muted: #6f6d66;
  --color-soft: #b9b6ad;
  --color-line: #d2cfc6;
  --color-link: #5b4f3f;
  --color-link-hover: #111111;
  --color-inverse: #050505;
  --color-inverse-text: #f4f2eb;
  --color-accent: #111111;
  --color-warning: #9a1f1f;
  --font-main: Inter, "Helvetica Neue", Arial, sans-serif;
  --text-xs: 0.68rem;
  --text-sm: 0.78rem;
  --text-base: 0.95rem;
  --text-md: 1.1rem;
  --text-lg: 1.45rem;
  --text-xl: 2rem;
  --text-2xl: clamp(2.4rem, 6vw, 5.5rem);
  --page-max: 1520px;
  --page-pad: clamp(1rem, 2.4vw, 2.35rem);
  --section-pad: clamp(2.5rem, 7vw, 6rem);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.66;
  text-rendering: geometricPrecision;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: var(--color-link);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  cursor: pointer;
  transition: color 160ms ease, background 160ms ease, border-color 160ms ease;
}

a:hover {
  color: var(--color-link-hover);
}

p,
h1,
h2,
h3,
h4,
figure,
dl,
dd {
  margin: 0;
}

.page {
  width: min(var(--page-max), 100%);
  margin: 0 auto;
  padding-right: var(--page-pad);
  padding-left: var(--page-pad);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(232, 230, 223, 0.88);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 42px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo,
.nav-menu a,
.section-kicker,
.section-label,
.row-number,
.row-tools,
.project-meta dt,
.contact-list span,
.hero-meta,
.site-footer {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: uppercase;
}

.logo {
  text-decoration: none;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: clamp(0.8rem, 2vw, 1.4rem);
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-menu a {
  color: var(--color-muted);
  text-decoration: none;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-text);
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 36px;
  padding: 8px;
  background: transparent;
  border: 1px solid var(--color-line);
  color: var(--color-text);
  cursor: pointer;
}

.nav-toggle span:not(.sr-only) {
  display: block;
  height: 1px;
  margin: 5px 0;
  background: currentColor;
}

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

.hero {
  padding-top: clamp(1.5rem, 4vw, 4rem);
  padding-bottom: var(--section-pad);
}

.hero-meta {
  display: flex;
  justify-content: flex-start;
  padding: 0 0 0.7rem;
  color: var(--color-muted);
}

.hero-copy {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(330px, 0.7fr);
  gap: clamp(2.25rem, 5vw, 6rem);
  align-items: start;
  max-width: 1420px;
  margin: clamp(2.75rem, 6.5vw, 5.5rem) auto 0;
}

.section-kicker {
  color: var(--color-muted);
}

h1,
h2,
h3 {
  font-weight: 500;
  letter-spacing: -0.04em;
}

h1 {
  max-width: 980px;
  font-size: var(--text-2xl);
  line-height: 0.95;
}

.hero-copy .section-kicker {
  margin-bottom: clamp(1.65rem, 3.1vw, 2.8rem);
}

.hero-copy > div > p {
  max-width: 760px;
  margin-top: 1.8rem;
  color: var(--color-text);
  font-size: var(--text-base);
}

.personal-panel {
  padding-top: 0.25rem;
  border-top: 1px solid var(--color-line);
}

.personal-panel h2 {
  margin-top: 1rem;
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  line-height: 1;
}

.personal-panel p {
  margin-top: 1.25rem;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.personal-panel ul {
  display: grid;
  gap: 0;
  margin: 1.7rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--color-line);
}

.personal-panel li {
  display: grid;
  grid-template-columns: 78px 1fr;
  gap: 1rem;
  padding: 0.95rem 0;
  border-bottom: 1px solid var(--color-line);
  color: var(--color-text);
  font-size: var(--text-sm);
}

.personal-panel li span {
  color: var(--color-muted);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.section {
  border-top: 1px solid var(--color-line);
  scroll-margin-top: 72px;
  padding-top: var(--section-pad);
  padding-bottom: var(--section-pad);
}

#ai-projects {
  padding-bottom: clamp(1.25rem, 2.5vw, 2rem);
}

#ai-projects .project-feature:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: 0;
}

#data-projects {
  border-top: 0;
  padding-top: clamp(1.5rem, 3vw, 2.75rem);
}

.two-column {
  display: grid;
  grid-template-columns: minmax(72px, 0.11fr) minmax(0, 1fr);
  gap: clamp(1rem, 2.3vw, 2.75rem);
}

.section-label {
  display: flex;
  gap: 0.6rem;
  align-items: baseline;
  color: var(--color-muted);
}

.section-heading {
  max-width: 760px;
  margin-bottom: clamp(2rem, 4.5vw, 3.6rem);
}

.section-heading h2,
.intro-block h2,
.contact-grid h2 {
  max-width: 860px;
  font-size: clamp(2rem, 4.8vw, 4.9rem);
  line-height: 0.96;
}

.section-heading p,
.intro-block p,
.contact-grid p {
  max-width: 640px;
  margin-top: 1.55rem;
  color: var(--color-muted);
  font-size: var(--text-base);
}

.inline-links,
.row-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem 1rem;
}

.inline-links {
  margin-top: 2.35rem;
}

.inline-links a,
.row-links a,
.project-meta a,
.contact-list a,
.site-footer a {
  color: var(--color-link);
  text-decoration: underline;
}

.inline-links a:hover,
.row-links a:hover,
.project-meta a:hover,
.contact-list a:hover,
.site-footer a:hover {
  color: var(--color-link-hover);
}

.work-index,
.archive-group {
  min-width: 0;
}

.project-row {
  display: grid;
  grid-template-columns: minmax(54px, 0.16fr) minmax(0, 1fr) minmax(150px, 0.34fr) minmax(150px, 0.28fr);
  gap: clamp(0.8rem, 2vw, 1.5rem);
  align-items: start;
  padding: 1.35rem 0;
  border-top: 1px solid var(--color-line);
  color: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: background 180ms ease, padding-left 180ms ease;
}

.project-row:last-child {
  border-bottom: 1px solid var(--color-line);
}

.project-row *,
.project-row:hover *,
.project-row:focus-visible * {
  text-decoration: none;
}

.project-row:hover {
  padding-left: 0.55rem;
  background: rgba(5, 5, 5, 0.025);
}

.project-row h3 {
  margin-bottom: 0.55rem;
  font-size: clamp(1.05rem, 2vw, 1.55rem);
  line-height: 1.05;
}

.project-row p {
  max-width: 620px;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.row-number,
.row-tools,
.row-action {
  color: var(--color-muted);
}

.row-action {
  font-size: var(--text-sm);
  text-decoration: underline;
}

.project-row .row-action,
.project-row:hover .row-action,
.project-row:focus-visible .row-action {
  text-decoration: underline;
}

.row-links {
  justify-content: flex-start;
  font-size: var(--text-sm);
}

.project-detail {
  display: grid;
  grid-template-columns: minmax(340px, 0.49fr) minmax(0, 0.51fr);
  gap: clamp(1.75rem, 3.8vw, 4rem);
  align-items: start;
  margin-bottom: 2rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--color-line);
}

#writing-assistant-trainer {
  border-bottom: 0;
}

.project-feature {
  margin-bottom: clamp(2rem, 5vw, 4rem);
  padding-bottom: clamp(2rem, 5vw, 4rem);
}

.project-detail-media {
  position: relative;
  overflow: visible;
  min-height: 0;
  align-self: start;
  border: 1px solid var(--color-line);
  background: var(--color-surface);
}

.project-detail-media a {
  display: block;
  height: auto;
  line-height: 0;
  cursor: pointer;
}

.project-detail-media a::after {
  content: "Click in for more";
  position: absolute;
  right: 0.75rem;
  bottom: 0.75rem;
  z-index: 1;
  padding: 0.42rem 0.55rem;
  background: rgba(243, 241, 234, 0.92);
  border: 1px solid var(--color-line);
  color: var(--color-text);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  line-height: 1;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 160ms ease, transform 160ms ease;
}

.project-detail-media a:hover::after,
.project-detail-media a:focus-visible::after {
  opacity: 1;
  transform: translateY(0);
}

.project-detail-media img {
  aspect-ratio: auto;
  width: 100%;
  height: auto;
  min-height: 0;
  max-height: none;
  object-fit: contain;
  object-position: center;
  filter: grayscale(1) contrast(1.04);
  transition: filter 180ms ease, transform 180ms ease;
}

.project-detail-media a:hover img {
  filter: grayscale(1) contrast(1.1) brightness(0.94);
  transform: scale(0.985);
}

.project-thumbnail {
  cursor: pointer;
}

.project-detail-copy {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 2.15rem;
  padding: 0.2rem 0;
}

.project-detail-copy h3 {
  font-size: clamp(1.8rem, 4vw, 4rem);
  line-height: 1;
}

.project-detail-copy > p {
  max-width: 560px;
  color: var(--color-muted);
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.project-tags span {
  padding: 0.5rem 0.65rem;
  color: var(--color-muted);
  border: 1px solid var(--color-line);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  line-height: 1;
  text-transform: uppercase;
}

.project-notes {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.2rem, 2vw, 1.8rem);
  padding-top: 1.35rem;
  border-top: 1px solid var(--color-line);
}

.project-notes h4 {
  margin-bottom: 0.85rem;
  color: var(--color-text);
  font-size: var(--text-xs);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.project-notes ul {
  margin: 0;
  padding-left: 1rem;
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.project-notes li + li {
  margin-top: 0.58rem;
}

.project-notes p {
  color: var(--color-muted);
  font-size: var(--text-sm);
}

.project-meta {
  display: grid;
  gap: 1.05rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-line);
}

.project-meta div {
  display: grid;
  grid-template-columns: 88px 1fr;
  gap: 1.2rem;
}

.project-meta dt {
  color: var(--color-muted);
}

.project-meta dd {
  color: var(--color-text);
  font-size: var(--text-sm);
}

.compact-row {
  grid-template-columns: minmax(54px, 0.16fr) minmax(0, 1fr) minmax(150px, 0.34fr) minmax(150px, 0.28fr);
}

.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(260px, 0.55fr);
  gap: clamp(1.5rem, 5vw, 5rem);
}

.contact-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--color-line);
}

.contact-list li {
  display: grid;
  grid-template-columns: 92px 1fr;
  gap: 1rem;
  padding: 1.12rem 0;
  border-bottom: 1px solid var(--color-line);
}

.contact-list span {
  color: var(--color-muted);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-top: 1.2rem;
  padding-bottom: 1.2rem;
  color: var(--color-muted);
  border-top: 1px solid var(--color-line);
}

.site-footer div {
  max-width: 980px;
}

.site-note {
  max-width: 920px;
  margin-top: 0.8rem;
  color: var(--color-muted);
  font-size: var(--text-sm);
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.55;
  text-transform: none;
}

.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 360ms ease, transform 360ms ease;
}

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

:focus-visible {
  outline: 1px solid var(--color-text);
  outline-offset: 4px;
}

@media (max-width: 980px) {
  .nav {
    min-height: 54px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-menu {
    position: absolute;
    top: 54px;
    right: var(--page-pad);
    left: var(--page-pad);
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-surface);
    border: 1px solid var(--color-line);
  }

  .nav-menu.open {
    display: flex;
  }

  .nav-menu a {
    display: block;
    padding: 0.9rem 1rem;
    border-bottom: 1px solid var(--color-line);
  }

  .nav-menu li:last-child a {
    border-bottom: 0;
  }

  .hero-copy,
  .two-column,
  .project-detail,
  .contact-grid,
  .project-notes {
    grid-template-columns: 1fr;
  }
  .section-label {
    margin-bottom: 1rem;
  }

  .project-row,
  .compact-row {
    grid-template-columns: minmax(50px, 0.16fr) minmax(0, 1fr);
  }

  .row-tools,
  .row-links {
    grid-column: 2;
  }

  .project-detail-copy {
    padding: 0;
  }

}

@media (max-width: 640px) {
  :root {
    --page-pad: 1rem;
  }

  html {
    scroll-padding-top: 64px;
  }

  .hero-meta {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

  .hero-meta span,
  .hero-meta span:nth-child(2),
  .hero-meta span:nth-child(3) {
    text-align: left;
  }

  .section-heading h2,
  .intro-block h2,
  .contact-grid h2 {
    letter-spacing: -0.035em;
  }

  .project-row,
  .compact-row {
    grid-template-columns: 1fr;
    gap: 0.55rem;
  }

  .project-detail-media a::after {
    right: 0.55rem;
    bottom: 0.55rem;
  }

  .row-tools,
  .row-links {
    grid-column: auto;
  }

  .project-row:hover {
    padding-left: 0;
  }

  .project-meta div,
  .contact-list li {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }

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

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

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

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