:root {
  --gutter: clamp(2.5rem, 8vw, 9rem);
  --safe-area-top: env(safe-area-inset-top, 0px);
  --safe-area-right: env(safe-area-inset-right, 0px);
  --safe-area-bottom: env(safe-area-inset-bottom, 0px);
  --safe-area-left: env(safe-area-inset-left, 0px);
  --header-block-size: calc(5.4rem + var(--safe-area-top));
  --paper: #171815;
  --paper-raised: #1e1f1b;
  --ink: #f0ede4;
  --graphite: #aaa79e;
  --quiet: #928f86;
  --hairline: #34352f;
  --accent: #e3694c;
  --accent-interactive: var(--accent);
  --accent-evidential: var(--accent);
  --accent-structural: color-mix(in srgb, var(--graphite) 78%, var(--accent));
  --accent-contrast: #171815;
  --grid-line: color-mix(in srgb, var(--ink) 7%, transparent);
  --rule-control: color-mix(in srgb, var(--graphite) 48%, var(--hairline));
  --shadow: 0 30px 90px rgb(0 0 0 / 26%);
  --font-manrope: "Manrope", Arial, sans-serif;
  --font-newsreader: "Newsreader", Georgia, serif;
  --duration-feedback: 180ms;
  --duration-feedback-slow: 280ms;
  --duration-state-enter: 220ms;
  --duration-toast: 240ms;
  --duration-route-in: 260ms;
  --duration-route-shared: 340ms;
  --ease-standard: cubic-bezier(0.22, 1, 0.36, 1);
  --target-size: 2.75rem;
}

:root[data-theme="light"] {
  --paper: #f3f0e8;
  --paper-raised: #faf8f2;
  --ink: #121310;
  --graphite: #52504a;
  --quiet: #484641;
  --hairline: #d6d1c6;
  --accent: #ad3f26;
  --accent-interactive: #b9472b;
  --accent-structural: color-mix(in srgb, var(--graphite) 82%, var(--accent));
  --accent-contrast: #fff8f1;
  --grid-line: color-mix(in srgb, var(--ink) 8%, transparent);
  --rule-control: color-mix(in srgb, var(--graphite) 62%, var(--hairline));
  --shadow: 0 30px 80px rgb(25 23 17 / 8%);
}

* { box-sizing: border-box; }

html {
  background: var(--paper);
  color-scheme: dark;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-block-size) + .6rem);
}

html[data-theme="light"] { color-scheme: light; }

body {
  min-width: 320px;
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-manrope);
  font-size: 16px;
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body::after {
  position: fixed;
  z-index: 40;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='grain'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.82' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix type='saturate' values='0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23grain)'/%3E%3C/svg%3E");
  background-size: 140px 140px;
  content: "";
  opacity: .05;
  pointer-events: none;
}

html[data-theme="light"] body::after { opacity: .032; }

::selection { background: var(--accent-evidential); color: var(--accent-contrast); }

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

.shell {
  width: 100%;
  max-width: calc(94rem + max(var(--gutter), calc(env(safe-area-inset-left, 0px) + env(safe-area-inset-right, 0px))));
  margin-inline: auto;
  padding-inline-start: max(calc(var(--gutter) / 2), env(safe-area-inset-left, 0px));
  padding-inline-end: max(calc(var(--gutter) / 2), env(safe-area-inset-right, 0px));
}

.skip-link {
  position: fixed;
  z-index: 100;
  top: 0;
  left: 1rem;
  padding: .75rem 1rem;
  background: var(--accent-interactive);
  color: var(--accent-contrast);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  transform: translateY(-120%);
  transition: transform var(--duration-feedback) ease;
}

.skip-link:focus { transform: translateY(0); }
#main-content { scroll-margin-top: calc(var(--header-block-size) + .6rem); }

.site-header {
  position: fixed;
  z-index: 20;
  top: 0;
  width: 100%;
  padding-top: var(--safe-area-top);
  border-bottom: 1px solid color-mix(in srgb, var(--hairline) 72%, transparent);
  background: var(--paper);
  transition: background-color var(--duration-toast) ease, backdrop-filter var(--duration-toast) ease;
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.site-header__inner,
.site-header__right,
.desktop-nav,
.wordmark,
.theme-toggle { display: flex; align-items: center; }

.site-header__inner { min-height: 5.4rem; justify-content: space-between; gap: 2rem; }

.wordmark { gap: .72rem; color: var(--ink); text-decoration: none; }
.wordmark__mark { display: block; width: 2.65rem; height: 2.65rem; flex: 0 0 auto; overflow: visible; }
.brand-mark__frame { opacity: .46; transition: opacity var(--duration-state-enter) ease, transform var(--duration-feedback-slow) var(--ease-standard); }
.brand-mark__node { fill: var(--accent-evidential); transform-box: fill-box; transform-origin: center; transition: transform var(--duration-feedback-slow) var(--ease-standard); }
.wordmark:hover .brand-mark__frame { opacity: .76; transform: rotate(4deg); }
.wordmark:hover .brand-mark__node { transform: scale(1.18); }
.wordmark__name { display: flex; flex-direction: column; align-items: flex-start; gap: .08rem; line-height: 1; }
.wordmark__given { color: var(--graphite); font-size: .64rem; font-weight: 750; letter-spacing: .22em; text-transform: uppercase; }
.wordmark__family { font-family: var(--font-newsreader); font-size: 1.18rem; font-style: italic; font-weight: 470; letter-spacing: -.025em; line-height: .9; }

.site-header__right { gap: clamp(1rem, 2.4vw, 2.5rem); }
.desktop-nav { gap: clamp(1rem, 2vw, 2rem); }
.desktop-nav a, .location, .theme-toggle { color: var(--graphite); font-size: .78rem; font-weight: 650; letter-spacing: .08em; text-decoration: none; text-transform: uppercase; }
.desktop-nav a { position: relative; padding-block: .9rem; }
.desktop-nav a::after { position: absolute; right: 0; bottom: .65rem; left: 0; height: 1px; background: var(--accent-interactive); content: ""; transform: scaleX(0); transform-origin: right; transition: transform var(--duration-feedback) ease; }
.desktop-nav a:hover::after, .desktop-nav a:focus-visible::after, .desktop-nav a[aria-current]::after { transform: scaleX(1); transform-origin: left; }
.desktop-nav a[aria-current] { color: var(--ink); }
.location { padding-left: clamp(1rem, 2vw, 2rem); border-left: 1px solid var(--hairline); white-space: nowrap; }

.theme-toggle { min-width: var(--target-size); min-height: var(--target-size); justify-content: center; gap: .65rem; padding: 0; border: 0; background: transparent; cursor: pointer; }
.theme-toggle__symbol { display: grid; width: 1.75rem; height: 1.75rem; place-items: center; border: 1px solid var(--hairline); border-radius: 50%; color: var(--graphite); transition: color var(--duration-feedback) ease, border-color var(--duration-feedback) ease; }
.theme-toggle__symbol svg { width: .95rem; height: .95rem; overflow: visible; fill: none; stroke: currentColor; stroke-linecap: round; stroke-width: 1.3; }
.theme-toggle__sun, .theme-toggle__moon { transform-box: fill-box; transform-origin: center; transition: opacity var(--duration-toast) ease, transform var(--duration-route-shared) var(--ease-standard); }
.theme-toggle__sun { opacity: 1; transform: rotate(0); }
.theme-toggle__moon { fill: currentColor; stroke: none; opacity: 0; transform: rotate(-45deg); }
:root[data-theme="light"] .theme-toggle__sun { opacity: 0; transform: rotate(80deg); }
:root[data-theme="light"] .theme-toggle__moon { opacity: 1; transform: rotate(0); }

.site-header__progress { position: absolute; right: 0; bottom: 0; left: 0; height: 1px; background: linear-gradient(90deg, var(--accent-structural), var(--accent-evidential)); opacity: 0; pointer-events: none; transform: scaleX(var(--progress, 0)); transform-origin: left; }
.site-header.is-scrolled .site-header__progress { opacity: 1; }

.projects-hero {
  min-height: 100svh;
  padding-top: var(--header-block-size);
  border-bottom: 1px solid var(--hairline);
  background-image: radial-gradient(circle at 76% 38%, color-mix(in srgb, var(--accent-evidential) 6%, transparent), transparent 54%);
}

.projects-hero__inner { display: flex; min-height: calc(100svh - var(--header-block-size)); flex-direction: column; padding-top: clamp(3rem, 7vh, 6rem); padding-bottom: clamp(2.5rem, 5vh, 4rem); }
.eyebrow, .section-marker, .project-card__context, .project-card__status, .project-card__tags, .site-footer { font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; }
.eyebrow { margin: 0; color: var(--graphite); }
.eyebrow span { margin-inline: .45rem; color: var(--accent-evidential); }
.projects-hero__grid { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 2rem; align-items: end; margin-block: auto; padding-block: clamp(3rem, 8vh, 7rem); }
.section-marker { display: flex; gap: .6rem; color: var(--quiet); }
.section-marker span:first-child { color: var(--accent-evidential); }
.projects-hero__grid > .section-marker { grid-column: span 2; align-self: start; margin: .85rem 0 0; }
.projects-hero__grid > div { grid-column: 4 / -1; }
.projects-hero h1 { max-width: 12ch; margin: 0; font-family: var(--font-newsreader); font-size: clamp(4.2rem, 8.4vw, 8.8rem); font-weight: 390; letter-spacing: -.06em; line-height: .86; }
.projects-hero h1 em { color: var(--graphite); font-weight: inherit; }
.projects-hero__lede { max-width: 48rem; margin: clamp(2rem, 4vw, 3.5rem) 0 2rem; color: var(--graphite); font-size: clamp(1rem, 1.4vw, 1.2rem); line-height: 1.75; }
.projects-hero__note { display: flex; justify-content: flex-end; gap: .4rem; margin: 0; color: var(--quiet); font-size: .72rem; letter-spacing: .04em; }
.projects-hero__note a { color: var(--graphite); text-underline-offset: .25em; }

.arrow-link { display: inline-flex; min-height: var(--target-size); align-items: center; gap: .7rem; color: var(--ink); font-size: .82rem; font-weight: 700; letter-spacing: .04em; text-decoration: none; }
.arrow-link--primary { padding: .75rem 1rem; border: 1px solid var(--accent-interactive); background: var(--accent-interactive); color: var(--accent-contrast); }
.arrow-link svg, .project-card__action svg { width: 1.1rem; height: 1.1rem; fill: none; stroke: currentColor; stroke-width: 1.35; transition: transform var(--duration-feedback) var(--ease-standard); }
.arrow-link:hover svg, .project-card:hover .project-card__action svg { transform: translate(3px, -3px); }

.project-index { padding-block: clamp(6rem, 12vw, 11rem); scroll-margin-top: var(--header-block-size); }
.chapter-heading { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 2rem; align-items: start; }
.chapter-heading .section-marker { grid-column: span 2; margin: .4rem 0 0; }
.chapter-heading h2 { grid-column: 4 / -1; max-width: 18ch; margin: 0; font-family: var(--font-newsreader); font-size: clamp(2.6rem, 5vw, 5.5rem); font-weight: 390; letter-spacing: -.05em; line-height: .95; }
.project-list { margin-top: clamp(4.5rem, 8vw, 8rem); border-top: 1px solid var(--hairline); }
.project-card { position: relative; display: grid; min-height: 27rem; grid-template-columns: 1fr 4.7fr 2.3fr; gap: clamp(1.5rem, 3vw, 3rem); align-items: center; overflow: hidden; padding-block: clamp(3rem, 6vw, 5rem); border-bottom: 1px solid var(--hairline); color: var(--ink); text-decoration: none; isolation: isolate; }
.project-card::before { position: absolute; z-index: -1; inset: 0; background: radial-gradient(circle at 78% 50%, color-mix(in srgb, var(--accent-evidential) 8%, transparent), transparent 48%); content: ""; opacity: 0; transition: opacity var(--duration-route-shared) ease; }
.project-card::after { position: absolute; z-index: -1; right: 1rem; bottom: -.18em; color: color-mix(in srgb, var(--ink) 4%, transparent); content: attr(data-number); font-family: var(--font-newsreader); font-size: clamp(10rem, 20vw, 19rem); font-style: italic; letter-spacing: -.08em; line-height: .68; pointer-events: none; }
.project-card:hover::before, .project-card:focus-visible::before { opacity: 1; }
.project-card__number { align-self: start; color: var(--accent-evidential); font-family: var(--font-newsreader); font-size: 2.5rem; letter-spacing: -.04em; line-height: 1; }
.project-card__body { display: flex; min-width: 0; flex-direction: column; }
.project-card__context { margin-bottom: 1.4rem; color: var(--quiet); line-height: 1.6; }
.project-card__body strong { max-width: 15ch; font-family: var(--font-newsreader); font-size: clamp(2.6rem, 4.5vw, 5rem); font-weight: 400; letter-spacing: -.05em; line-height: .98; transition: color var(--duration-feedback) ease; }
.project-card:hover .project-card__body strong { color: var(--accent-interactive); }
.project-card__description { max-width: 44rem; margin-top: 2rem; color: var(--graphite); font-size: .98rem; line-height: 1.75; }
.project-card__meta { display: flex; min-width: 0; flex-direction: column; align-items: flex-start; gap: 1.4rem; }
.project-card__status { display: inline-flex; align-items: center; gap: .6rem; color: var(--ink); }
.project-card__status i { width: .48rem; height: .48rem; border-radius: 50%; background: var(--accent-evidential); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent-evidential) 15%, transparent); }
.project-card__tags { color: var(--quiet); line-height: 1.7; }
.project-card__action { display: inline-flex; min-height: var(--target-size); align-items: center; gap: .7rem; border-bottom: 1px solid var(--accent-interactive); font-size: .82rem; font-weight: 700; letter-spacing: .04em; }
.project-index__aside { display: flex; justify-content: space-between; gap: 2rem; align-items: center; margin-top: clamp(2rem, 4vw, 3.25rem); color: var(--quiet); font-size: .8rem; }

.site-footer { border-top: 1px solid var(--hairline); color: var(--graphite); padding-bottom: var(--safe-area-bottom); }
.site-footer__inner { display: grid; min-height: 9rem; grid-template-columns: 1fr auto auto; gap: 2rem; align-items: center; padding-block: 1.5rem; }
.site-footer__inner > div { display: flex; flex-direction: column; gap: .2rem; }
.site-footer strong { color: var(--ink); font-size: .72rem; }
.site-footer nav { display: flex; flex-wrap: wrap; gap: 1.25rem; }
.site-footer a { display: inline-flex; min-height: var(--target-size); align-items: center; padding-block: .5rem; color: var(--graphite); text-decoration: none; transition: color var(--duration-state-enter) var(--ease-standard); }
.site-footer a:hover { color: var(--accent-interactive); }

/* Shared project-detail treatment. It deliberately overrides each live
   project's local presentation shell without restyling the project itself. */
.project-detail { background: var(--paper); color: var(--ink); }
.project-detail > .site-header { padding: 0; }
.project-detail > header.site { padding: calc(var(--header-block-size) + clamp(4rem, 8vw, 8rem)) 0 clamp(4rem, 7vw, 7rem); border-bottom: 1px solid var(--hairline); background: var(--paper); color: var(--ink); }
.project-detail .wrap { width: 100%; max-width: calc(78rem + var(--gutter)); padding-inline: calc(var(--gutter) / 2); }
.project-detail > header.site .wrap { max-width: calc(94rem + var(--gutter)); }
.project-detail .crumb { margin-bottom: clamp(3rem, 6vw, 5rem); }
.project-detail .crumb a { color: var(--graphite); font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-decoration: none; text-transform: uppercase; }
.project-detail header.site .eyebrow { color: var(--accent-evidential); }
.project-detail header.site h1 { max-width: 15ch; margin-top: 1rem; color: var(--ink); font-family: var(--font-newsreader); font-size: clamp(3.6rem, 7vw, 7.5rem); font-weight: 390; letter-spacing: -.06em; line-height: .9; }
.project-detail header.site .lede { max-width: 54rem; margin-top: 2rem; color: var(--graphite); font-size: clamp(1rem, 1.4vw, 1.2rem); line-height: 1.75; }
.project-detail .figures { padding: 0; border-bottom: 1px solid var(--hairline); background: var(--paper); }
.project-detail .figrow { gap: 0; border: 0; border-radius: 0; background: transparent; }
.project-detail .fig { padding: 1.75rem 1.5rem; border-right: 1px solid var(--hairline); background: transparent; }
.project-detail .fig:last-child { border-right: 0; }
.project-detail .fig .n { color: var(--ink); font-family: var(--font-newsreader); font-size: 2.1rem; font-weight: 470; }
.project-detail .fig .l { color: var(--quiet); font-size: .72rem; letter-spacing: .06em; text-transform: uppercase; }
.project-detail main { padding-top: clamp(4rem, 8vw, 7rem); }
.project-detail section { margin-bottom: clamp(4rem, 8vw, 7rem); }
.project-detail h2 { color: var(--ink); font-family: var(--font-newsreader); font-size: clamp(2rem, 3vw, 3.25rem); font-weight: 420; letter-spacing: -.035em; }
.project-detail h3, .project-detail strong { color: var(--ink); }
.project-detail p, .project-detail li { color: var(--graphite); }
.project-detail a { color: var(--accent-interactive); }
.project-detail .note, .project-detail .frame, .project-detail .alt, .project-detail .panel, .project-detail .narrowscreen { border-color: var(--hairline); border-radius: 0; background: var(--paper-raised); color: var(--graphite); box-shadow: none; }
.project-detail .note { border-left: 2px solid var(--accent-evidential); }
.project-detail .frame { box-shadow: var(--shadow); }
.project-detail .framebar { color: var(--quiet); }
.project-detail .btn { min-height: var(--target-size); border-radius: 0; background: var(--accent-interactive); color: var(--accent-contrast); }
.project-detail .stack li { border-color: var(--hairline); border-radius: 0; background: var(--paper-raised); color: var(--graphite); }
.project-detail ol.steps li::before { border-color: var(--hairline); border-radius: 0; background: var(--accent-interactive); color: var(--accent-contrast); }
.project-detail > footer.site { margin-top: 0; padding: 2.5rem 0; border-top: 1px solid var(--hairline); background: var(--paper); color: var(--quiet); }
.project-source { padding-block: 2rem; border-top: 1px solid var(--hairline); color: var(--quiet); font-size: .76rem; }
.project-source p { max-width: 70rem; margin: 0 0 .5rem; }
.project-source a { color: var(--graphite); }

:focus-visible { outline: 2px solid var(--accent-interactive); outline-offset: 5px; }
input:focus-visible, select:focus-visible, textarea:focus-visible { outline-offset: 2px; }

@media (max-width: 1199px) {
  .desktop-nav { display: none; }
}

@media (max-width: 767px) {
  :root { --gutter: 2.5rem; --header-block-size: calc(5rem + var(--safe-area-top)); }
  .site-header__inner { min-height: 5rem; }
  .location, .theme-toggle__label { display: none; }
  .projects-hero__grid, .chapter-heading { grid-template-columns: 1fr; gap: 2.5rem; }
  .projects-hero__grid > .section-marker, .projects-hero__grid > div, .chapter-heading .section-marker, .chapter-heading h2 { grid-column: 1; }
  .projects-hero h1 { font-size: clamp(3.5rem, 17vw, 5.5rem); }
  .projects-hero__note { justify-content: flex-start; }
  .project-card { min-height: 0; grid-template-columns: 1fr; gap: 1.5rem; padding-block: 3rem; }
  .project-card__number { font-size: 2rem; }
  .project-card__body strong { font-size: clamp(2.5rem, 12vw, 4rem); }
  .project-card__meta { gap: 1rem; }
  .project-index__aside { align-items: flex-start; flex-direction: column; }
  .site-footer__inner { min-height: 12rem; grid-template-columns: 1fr auto; }
  .site-footer nav { grid-column: 1 / -1; grid-row: 1; }
  .project-detail .wrap { padding-inline: calc(var(--gutter) / 2); }
  .project-detail > header.site { padding-top: calc(var(--header-block-size) + 4rem); }
  .project-detail header.site h1 { font-size: clamp(3.2rem, 15vw, 5rem); }
  .project-detail .fig { border-right: 0; border-bottom: 1px solid var(--hairline); }
}

@media (max-width: 374px) {
  :root { --gutter: 2rem; }
  .wordmark__given { letter-spacing: .16em; }
  .wordmark__family { font-size: 1.05rem; }
}

@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after { animation: none !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}