@layer reset, tokens, base, layout, components, pages, utilities;

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

  html {
    scroll-behavior: smooth;
  }

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

  body {
    min-width: 320px;
  }

  a {
    color: inherit;
  }
}

@layer tokens {
  :root {
    color-scheme: light;
    --paper: #f7f6f2;
    --paper-warm: #f3f1ed;
    --paper-cool: #f0f2f3;
    --white: #ffffff;
    --ink: #171817;
    --anthracite: #2d302f;
    --graphite: #696a66;
    --line: #d9d8d1;
    --line-strong: #a4a39b;
    --warm-mark: #625d57;
    --cool-mark: #535c62;
    --font-sans: "Poppins", "Avenir Next", Avenir, "Helvetica Neue", Arial, sans-serif;
    --font-mono: "Roboto Mono", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
    --page-gutter: clamp(1rem, 4vw, 4rem);
    --section-space: clamp(4rem, 10vw, 9rem);
    --radius: 0.25rem;
  }

  :root[data-theme="dark"] {
    color-scheme: dark;
    --paper: #111312;
    --paper-warm: #171917;
    --paper-cool: #1c2020;
    --white: #222625;
    --ink: #f2f1eb;
    --anthracite: #d6d7d2;
    --graphite: #b5b7b1;
    --line: #353936;
    --line-strong: #656a65;
    --warm-mark: #bbb2a8;
    --cool-mark: #aab6bd;
  }
}

@layer base {
  body {
    background: var(--paper);
    color: var(--ink);
    font-family: var(--font-sans);
    font-size: 1rem;
    line-height: 1.65;
    text-rendering: optimizeLegibility;
  }

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

  h1,
  h2,
  h3,
  h4 {
    font-weight: 500;
    line-height: 1.08;
    text-wrap: balance;
  }

  h1 {
    max-width: 12ch;
    font-size: clamp(3rem, 8vw, 7.5rem);
    letter-spacing: -0.055em;
  }

  h2 {
    font-size: clamp(2rem, 4vw, 4rem);
    letter-spacing: -0.04em;
  }

  h3,
  h4 {
    letter-spacing: -0.02em;
  }

  :focus-visible {
    outline: 2px solid var(--cool-mark);
    outline-offset: 4px;
  }
}

@layer layout {
  .site-header,
  main > section,
  footer {
    padding-inline: var(--page-gutter);
  }

  .site-header {
    position: sticky;
    z-index: 10;
    top: 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 5rem;
    border-bottom: 1px solid var(--line);
    background: color-mix(in srgb, var(--paper) 92%, transparent);
    backdrop-filter: blur(12px);
  }

  .site-header nav {
    display: flex;
    align-items: center;
    gap: clamp(1rem, 3vw, 2.5rem);
  }

  .site-header nav a,
  .text-link {
    text-decoration-thickness: 1px;
    text-underline-offset: 0.35em;
  }

  .hero {
    min-height: calc(100svh - 5rem);
    display: grid;
    align-content: center;
    gap: 1.5rem;
    padding-block: var(--section-space);
    border-bottom: 1px solid var(--line);
    background: var(--paper-cool);
  }

  .live-time {
    width: min(100%, 92rem);
    margin-block: clamp(1rem, 3vw, 3rem);
  }

  #live-timestamp {
    display: block;
    overflow: hidden;
    font-family: var(--font-mono);
    font-size: clamp(2.35rem, 8vw, 8rem);
    line-height: 0.95;
    letter-spacing: -0.075em;
    white-space: nowrap;
  }

  .time-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.25rem;
    color: var(--graphite);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.055em;
    text-transform: uppercase;
  }

  .minute-track {
    height: 1px;
    margin-top: 0.75rem;
    overflow: hidden;
    background: var(--line);
  }

  .minute-track span {
    display: block;
    width: var(--minute-progress, 0%);
    height: 100%;
    background: var(--cool-mark);
    transition: width 0.3s linear;
  }

  .hero-copy {
    max-width: 43rem;
    font-size: clamp(1.2rem, 2vw, 1.65rem);
    line-height: 1.45;
  }

  .hero-copy.secondary {
    color: var(--graphite);
  }

  .text-link {
    width: fit-content;
    margin-top: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .register,
  .statement,
  .register-principle,
  .contact,
  .fibonacci {
    padding-block: var(--section-space);
    border-bottom: 1px solid var(--line);
  }

  .section-heading,
  .contact,
  .fibonacci {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(16rem, 0.7fr);
    gap: clamp(2rem, 6vw, 7rem);
    align-items: end;
  }

  .section-note,
  .contact-copy {
    max-width: 38rem;
    color: var(--graphite);
  }

  .board {
    display: grid;
    grid-auto-columns: minmax(17rem, 1fr);
    grid-auto-flow: column;
    gap: 1px;
    margin-top: 4rem;
    overflow-x: auto;
    border: 1px solid var(--line-strong);
    background: var(--line-strong);
    scrollbar-color: var(--anthracite) var(--line);
  }

  .column {
    min-height: 32rem;
    padding: 1.25rem;
    background: var(--paper);
  }

  .column-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--line);
  }

  .statement-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(2rem, 6vw, 7rem);
    max-width: 72rem;
    margin-top: 3rem;
    font-size: clamp(1.2rem, 2vw, 1.6rem);
    line-height: 1.5;
  }

  .register {
    background: var(--paper-warm);
  }

  .contact-copy {
    display: grid;
    gap: 1.25rem;
  }

  .fibonacci {
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1.5rem;
    padding-block: 1.5rem;
    background: var(--paper);
    align-items: start;
  }

  .fibonacci-explanation {
    max-width: 52rem;
    margin-top: 0.75rem;
    color: var(--graphite);
    font-size: 0.85rem;
  }

  .fibonacci-origin,
  .fibonacci-current {
    color: var(--graphite);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.055em;
    text-transform: uppercase;
  }

  .fibonacci-origin {
    margin-top: 0.75rem;
  }

  .fibonacci-current {
    display: grid;
    gap: 0.5rem;
    text-align: right;
  }

  .fibonacci-current output {
    color: var(--ink);
    font-size: clamp(1rem, 2vw, 1.4rem);
    line-height: 1.3;
    letter-spacing: -0.04em;
    white-space: nowrap;
  }

  .home-about {
    padding-block: var(--section-space);
    border-bottom: 1px solid var(--line);
  }

  .home-about-grid {
    display: grid;
    grid-template-columns: minmax(0, 2fr) minmax(16rem, 1fr);
    align-items: stretch;
  }

  .home-about-copy {
    order: 0;
    display: grid;
    align-content: center;
    gap: 1.5rem;
    padding: clamp(2rem, 6vw, 6rem);
    background: var(--paper-warm);
  }

  .home-about-copy h2 {
    max-width: 14ch;
  }

  .home-about-copy > p:not(.eyebrow) {
    max-width: 38rem;
    color: var(--graphite);
    font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  }

  .home-about-copy .text-link {
    margin-top: 0.5rem;
  }

  .home-about .portrait {
    order: 1;
    max-height: 48rem;
  }

  .home-portrait,
  .portrait-square {
    min-height: 0;
    aspect-ratio: 1;
    align-self: center;
  }

  .home-portrait img,
  .portrait-square img {
    object-fit: contain;
    object-position: center;
  }

  .about-page {
    padding-block: clamp(4rem, 10vw, 9rem);
    border-bottom: 1px solid var(--line);
  }

  .about-intro {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 2rem;
    padding-bottom: clamp(3rem, 8vw, 7rem);
    border-bottom: 1px solid var(--line);
  }

  .about-intro h1 {
    max-width: 16ch;
  }

  .about-location {
    color: var(--graphite);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.055em;
    text-transform: uppercase;
  }

  .about-biography {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: clamp(1rem, 2vw, 2rem);
    align-items: stretch;
    padding-top: clamp(3rem, 8vw, 7rem);
  }

  .about-text {
    display: grid;
    align-content: center;
    gap: 1.5rem;
    max-width: none;
    padding: clamp(2rem, 6vw, 6rem);
    background: var(--paper-cool);
    color: var(--graphite);
    font-size: clamp(1.05rem, 1.5vw, 1.3rem);
    line-height: 1.6;
  }

  .about-text .about-lead {
    color: var(--ink);
    font-size: clamp(1.35rem, 2.5vw, 2rem);
    line-height: 1.35;
  }

  .register-principle {
    padding-block: var(--section-space);
    border-bottom: 1px solid var(--line);
  }

  footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    min-height: 10rem;
  }
}

@layer components {
  .skip-link {
    position: fixed;
    z-index: 100;
    top: 1rem;
    left: 1rem;
    translate: 0 -200%;
    padding: 0.7rem 1rem;
    background: var(--ink);
    color: var(--paper);
  }

  .skip-link:focus {
    translate: 0;
  }

  .identity {
    display: flex;
    flex-direction: column;
    text-decoration: none;
    line-height: 1.2;
  }

  .identity span {
    font-weight: 500;
  }

  .identity small,
  .eyebrow,
  .column-header span,
  .card-meta,
  .research-card dt,
  .research-card dd,
  .footer-status {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.055em;
    text-transform: uppercase;
  }

  .identity small,
  .eyebrow,
  .column-header span,
  .section-note,
  .column-definition,
  .empty-state,
  .footer-status {
    color: var(--graphite);
  }

  .column-header h3 {
    font-size: 1rem;
    text-transform: uppercase;
  }

  .column-definition {
    min-height: 5.5rem;
    padding-block: 1rem;
    font-size: 0.85rem;
    line-height: 1.45;
  }

  .empty-state {
    display: grid;
    min-height: 13rem;
    place-items: center;
    border: 1px dashed var(--line);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-align: center;
    text-transform: uppercase;
  }

  .research-card {
    padding: 1.1rem;
    border: 1px solid var(--anthracite);
    background: var(--white);
  }

  .card-meta {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 3rem;
    color: var(--graphite);
  }

  .research-card h4 {
    margin-bottom: 0.8rem;
    font-size: 1.65rem;
  }

  .research-card > p {
    color: var(--anthracite);
  }

  .research-card dl {
    display: grid;
    gap: 0.7rem;
    margin-top: 2.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
  }

  .research-card dl div {
    display: grid;
    grid-template-columns: 1fr 1.4fr;
    gap: 1rem;
  }

  .research-card dt {
    color: var(--graphite);
  }

  .research-card dd {
    color: var(--ink);
  }

  details {
    margin-top: 1.5rem;
    border-top: 1px solid var(--line);
  }

  summary {
    padding-block: 1rem;
    cursor: pointer;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  details p {
    padding-bottom: 0.5rem;
    color: var(--graphite);
    font-size: 0.9rem;
  }

  .portrait {
    position: relative;
    order: -1;
    width: 100%;
    max-width: none;
    min-height: 100%;
    aspect-ratio: 4 / 5;
    justify-self: stretch;
    overflow: hidden;
    background: var(--paper-cool);
  }

  .portrait::after {
    position: absolute;
    inset: 0;
    content: "";
    pointer-events: none;
    background: rgb(45 48 47 / 0.04);
    mix-blend-mode: multiply;
  }

  .portrait img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .portrait-monochrome img {
    filter: grayscale(1) contrast(0.96);
  }

  .portrait figcaption {
    position: absolute;
    z-index: 1;
    right: 0.8rem;
    bottom: 0.65rem;
    color: var(--paper);
    background: var(--ink);
    padding: 0.2rem 0.4rem;
    font-family: var(--font-mono);
    font-size: 0.61rem;
    letter-spacing: 0.055em;
    text-transform: uppercase;
  }

  .language-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    color: var(--graphite);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.055em;
  }

  .language-switch [aria-current="page"] {
    color: var(--ink);
  }

  .contact-link {
    width: fit-content;
    color: var(--ink);
    font-family: var(--font-mono);
    font-size: clamp(1rem, 2vw, 1.35rem);
    text-decoration-thickness: 1px;
    text-underline-offset: 0.35em;
  }

  .external-links {
    display: grid;
    gap: 0.65rem;
    margin-top: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    letter-spacing: 0.025em;
  }

  .external-links a:first-child {
    color: var(--warm-mark);
  }

  .external-links a:last-child {
    color: var(--cool-mark);
  }

  a:hover {
    color: var(--cool-mark);
  }

  .external-links a:first-child:hover {
    color: var(--ink);
  }
}

@layer pages {
  .critical-legend {
    padding-block: clamp(2rem, 5vw, 4rem);
    border-bottom: 1px solid var(--line);
    background: var(--paper-cool);
  }

  .critical-legend h2 {
    margin-block: 0.75rem 1.5rem;
    font-size: clamp(1.5rem, 3vw, 2.25rem);
  }

  .critical-legend dl {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 14rem), 1fr));
    gap: 1.5rem;
  }

  .critical-legend dt,
  .evidence-label {
    color: var(--anthracite);
    font-family: var(--font-mono);
    font-size: 0.65rem;
    line-height: 1.5;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .critical-legend dd,
  .evidence-note {
    margin-top: 0.5rem;
    color: var(--graphite);
    font-size: 0.85rem;
  }

  .card-document {
    margin-top: 0.5rem;
  }

  .card-document img {
    display: block;
    width: 100%;
    height: auto;
    margin-top: 0.75rem;
  }

  .card-document figcaption {
    margin-top: 0.5rem;
    color: var(--graphite);
    font-size: 0.8rem;
  }

  main > section[id] {
    scroll-margin-top: 8rem;
  }

  .site-header nav > [aria-current="page"] {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.35em;
  }

  .research-card-title {
    text-decoration: none;
  }

  .research-card-title:hover {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.2em;
  }

  .card-opening {
    display: grid;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
  }

  .card-opening p {
    color: var(--graphite);
    font-size: 0.9rem;
  }

  .card-opening a,
  .index-open {
    width: fit-content;
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.35em;
    text-transform: uppercase;
  }

  .index-hero,
  .index-note,
  .research-hero,
  .research-intro,
  .research-process,
  .archive-section,
  .direction-section,
  .occurrence-section,
  .research-next {
    padding: var(--section-space) var(--page-gutter);
    border-bottom: 1px solid var(--line);
  }

  .index-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
    gap: clamp(2rem, 7vw, 8rem);
    align-items: end;
    min-height: 64svh;
    background: var(--paper-warm);
  }

  .index-hero h1 {
    margin-top: 1.25rem;
  }

  .index-introduction {
    max-width: 40rem;
    color: var(--graphite);
    font-size: clamp(1.2rem, 2vw, 1.65rem);
    line-height: 1.5;
  }

  .index-list {
    padding-inline: var(--page-gutter);
  }

  .index-entry {
    display: grid;
    grid-template-columns: clamp(4rem, 8vw, 8rem) minmax(0, 1.3fr) minmax(14rem, 0.7fr) auto;
    gap: clamp(1.5rem, 4vw, 4rem);
    align-items: start;
    padding-block: clamp(3rem, 7vw, 6rem);
    border-bottom: 1px solid var(--line-strong);
  }

  .index-entry-cool {
    background: var(--paper-cool);
  }

  .index-entry-warm {
    background: var(--paper-warm);
  }

  .index-number,
  .direction-index {
    color: var(--graphite);
    font-family: var(--font-mono);
    font-size: clamp(2rem, 5vw, 5rem);
    line-height: 1;
    letter-spacing: -0.06em;
  }

  .index-entry-main .card-meta {
    max-width: 22rem;
    margin-bottom: 1.5rem;
  }

  .index-entry-main h2 {
    font-size: clamp(2rem, 4vw, 4.5rem);
  }

  .index-entry-main h2 a {
    text-decoration: none;
  }

  .index-entry-main h2 a:hover {
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 0.15em;
  }

  .index-entry-main > p {
    max-width: 40rem;
    margin-top: 1.5rem;
    color: var(--graphite);
    font-size: clamp(1rem, 1.5vw, 1.25rem);
  }

  .index-data,
  .research-meta {
    display: grid;
    gap: 0.8rem;
    margin: 0;
  }

  .index-data div,
  .research-meta div {
    display: grid;
    gap: 0.2rem;
    padding-bottom: 0.8rem;
    border-bottom: 1px solid var(--line);
  }

  .index-data dt,
  .index-data dd,
  .research-meta dt,
  .research-meta dd {
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
  }

  .index-data dt,
  .research-meta dt {
    color: var(--graphite);
  }

  .index-note {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.65fr);
    gap: 2rem clamp(2rem, 6vw, 7rem);
  }

  .index-note h2 {
    grid-column: 1;
  }

  .index-note > p:last-child {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: end;
    color: var(--graphite);
    font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  }

  .research-page-cool .research-hero {
    background: var(--paper-cool);
  }

  .research-page-warm .research-hero {
    background: var(--paper-warm);
  }

  .research-hero {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(18rem, 0.75fr);
    gap: 2rem clamp(2rem, 7vw, 8rem);
    min-height: calc(100svh - 5rem);
    align-content: center;
  }

  .research-kicker {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    border-bottom: 1px solid var(--line-strong);
    padding-bottom: 1rem;
  }

  .research-version {
    color: var(--graphite);
    font-family: var(--font-mono);
    font-size: 0.72rem;
    letter-spacing: 0.055em;
  }

  .research-hero h1 {
    max-width: 10ch;
  }

  .research-question {
    align-self: end;
    max-width: 38rem;
    color: var(--anthracite);
    font-size: clamp(1.35rem, 2.5vw, 2.2rem);
    line-height: 1.4;
  }

  .research-meta {
    grid-column: 1 / -1;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    margin-top: clamp(2rem, 5vw, 5rem);
  }

  .research-intro > .eyebrow {
    margin-bottom: 2rem;
  }

  .research-intro-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.85fr);
    gap: clamp(2rem, 7vw, 8rem);
  }

  .research-intro-grid h2 {
    max-width: 15ch;
  }

  .research-prose {
    display: grid;
    gap: 1.5rem;
    color: var(--graphite);
    font-size: clamp(1rem, 1.35vw, 1.2rem);
  }

  .research-prose .lead {
    color: var(--ink);
    font-size: clamp(1.3rem, 2vw, 1.8rem);
    line-height: 1.45;
  }

  .process-chain {
    display: grid;
    grid-template-columns: repeat(5, minmax(10rem, 1fr));
    margin: 4rem 0 0;
    padding: 0;
    overflow-x: auto;
    border-top: 1px solid var(--line-strong);
    border-left: 1px solid var(--line-strong);
    list-style: none;
  }

  .process-chain-eight {
    grid-template-columns: repeat(8, minmax(10rem, 1fr));
  }

  .process-chain li {
    min-height: 16rem;
    padding: 1.25rem;
    border-right: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
  }

  .process-chain span,
  .archive-entry figcaption > span,
  .archive-entry figcaption small {
    display: block;
    color: var(--graphite);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.055em;
    text-transform: uppercase;
  }

  .process-chain strong {
    display: block;
    margin-top: 4rem;
    font-size: 1.2rem;
    font-weight: 500;
  }

  .process-chain p {
    margin-top: 0.75rem;
    color: var(--graphite);
    font-size: 0.88rem;
  }

  .archive-section {
    background: var(--paper-cool);
  }

  .archive-heading {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
    gap: clamp(2rem, 7vw, 8rem);
    align-items: end;
  }

  .archive-heading h2 {
    margin-top: 1rem;
  }

  .archive-caution {
    display: grid;
    gap: 1rem;
    color: var(--graphite);
  }

  .archive-list {
    display: grid;
    gap: clamp(5rem, 12vw, 12rem);
    margin-top: clamp(5rem, 10vw, 9rem);
  }

  .archive-entry {
    min-width: 0;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.65fr);
    gap: clamp(2rem, 7vw, 8rem);
    align-items: center;
  }

  .archive-entry-reverse {
    grid-template-columns: minmax(18rem, 0.65fr) minmax(0, 1.15fr);
  }

  .archive-entry-reverse .archive-image {
    grid-column: 2;
  }

  .archive-entry-reverse figcaption {
    grid-column: 1;
    grid-row: 1;
  }

  .archive-image {
    min-width: 0;
    width: 100%;
    min-height: 34rem;
    max-height: 72rem;
    overflow: hidden;
    background: var(--line);
  }

  .archive-image img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  .archive-image-wide {
    min-height: 0;
    aspect-ratio: 16 / 7;
    background: var(--paper-cool);
  }

  .archive-image-wide img {
    object-fit: contain;
  }

  .archive-entry figcaption h3 {
    margin-top: 1rem;
    font-family: var(--font-mono);
    font-size: clamp(1.5rem, 3vw, 3rem);
    font-weight: 400;
    letter-spacing: -0.04em;
  }

  .archive-entry figcaption p {
    margin-top: 1.5rem;
    color: var(--graphite);
    font-size: clamp(1rem, 1.4vw, 1.2rem);
  }

  .archive-entry figcaption small {
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid var(--line);
  }

  .direction-section {
    display: grid;
    grid-template-columns: clamp(5rem, 12vw, 12rem) minmax(0, 1fr);
    gap: clamp(2rem, 6vw, 7rem);
    background: var(--paper-warm);
  }

  .direction-content h2 {
    margin-top: 1rem;
  }

  .direction-lead {
    max-width: 54rem;
    margin-top: 2rem;
    font-size: clamp(1.2rem, 2vw, 1.65rem);
  }

  .direction-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    margin-top: 4rem;
    border: 1px solid var(--line-strong);
    background: var(--line-strong);
  }

  .direction-grid div {
    min-height: 13rem;
    padding: clamp(1.5rem, 3vw, 3rem);
    background: var(--paper);
  }

  .direction-grid h3 {
    font-size: 1.2rem;
    font-weight: 500;
  }

  .direction-grid p {
    margin-top: 2rem;
    color: var(--graphite);
  }

  .occurrence-section {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(18rem, 0.75fr);
    gap: clamp(2rem, 7vw, 8rem);
  }

  .occurrence-section h2 {
    margin-top: 1rem;
    max-width: 14ch;
  }

  .empty-occurrence {
    display: grid;
    gap: 3rem;
    align-content: space-between;
    min-height: 22rem;
    padding: clamp(1.5rem, 4vw, 4rem);
    border: 1px dashed var(--line-strong);
  }

  .empty-occurrence span {
    color: var(--graphite);
    font-family: var(--font-mono);
    font-size: clamp(3rem, 8vw, 8rem);
    line-height: 1;
    letter-spacing: -0.07em;
  }

  .empty-occurrence p {
    color: var(--graphite);
  }

  .research-next {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(18rem, 0.8fr);
    gap: 1.5rem clamp(2rem, 7vw, 8rem);
    background: var(--paper-warm);
  }

  .research-next h2 {
    grid-column: 1;
  }

  .research-next > p:not(.eyebrow) {
    grid-column: 2;
    grid-row: 1 / span 2;
    align-self: end;
    color: var(--graphite);
    font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  }

  .research-next .text-link {
    grid-column: 1;
  }

  @media (max-width: 900px) {
    .index-hero,
    .index-note,
    .research-hero,
    .research-intro-grid,
    .archive-heading,
    .archive-entry,
    .archive-entry-reverse,
    .occurrence-section,
    .research-next {
      grid-template-columns: 1fr;
    }

    .index-entry {
      grid-template-columns: 4rem minmax(0, 1fr);
    }

    .index-data,
    .index-open {
      grid-column: 2;
    }

    .index-note h2,
    .index-note > p:last-child,
    .research-next h2,
    .research-next > p:not(.eyebrow),
    .research-next .text-link {
      grid-column: 1;
      grid-row: auto;
    }

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

    .archive-entry-reverse .archive-image,
    .archive-entry-reverse figcaption {
      grid-column: 1;
      grid-row: auto;
    }

    .archive-entry-reverse .archive-image {
      order: 0;
    }

    .archive-entry-reverse figcaption {
      order: 1;
    }
  }

  @media (max-width: 620px) {
    .index-entry {
      grid-template-columns: 1fr;
    }

    .index-number,
    .index-data,
    .index-open {
      grid-column: 1;
    }

    .research-meta,
    .direction-grid {
      grid-template-columns: 1fr;
    }

    .direction-section {
      grid-template-columns: 1fr;
    }

    .archive-image {
      min-height: 26rem;
    }
  }
}

@layer utilities {
  @media (max-width: 760px) {
    .site-header {
      flex-direction: column;
      align-items: flex-start;
      gap: 0.75rem;
      padding-block: 0.75rem;
    }

    .site-header nav {
      flex-wrap: wrap;
      gap: 0.5rem 0.8rem;
      font-size: 0.85rem;
    }

    .language-switch a {
      display: inline;
    }

    #live-timestamp {
      font-size: clamp(1.25rem, 6.8vw, 3.25rem);
    }

    .time-meta {
      font-size: 0.62rem;
    }

    .section-heading,
    .home-about-grid,
    .about-biography,
    .contact,
    .fibonacci,
    .statement-grid {
      grid-template-columns: 1fr;
    }

    .about-intro {
      align-items: start;
      flex-direction: column;
    }

    .section-heading,
    .contact,
    .fibonacci {
      align-items: start;
    }

    .fibonacci-current {
      text-align: left;
    }

    .home-about-copy,
    .about-text {
      padding: clamp(2rem, 8vw, 3.5rem);
    }

    .portrait {
      min-height: auto;
      justify-self: stretch;
    }

    .board {
      grid-auto-columns: minmax(82vw, 1fr);
    }

    footer {
      align-items: flex-start;
      flex-direction: column;
      justify-content: center;
    }
  }

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

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

.home-about .home-about-copy {
  order: 0;
}

.home-about .home-portrait {
  order: 1;
}

.about-biography .about-text {
  order: 0;
}

.about-biography .portrait {
  order: 1;
}