/* Shared desktop rail; below 980px it becomes an accessible drawer. */
body.has-rail { padding-left: var(--rail-w); }

.site-rail {
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  width: var(--rail-w);
  padding: 24px 28px 28px;
  border-right: 1px solid var(--rule);
  background: color-mix(in srgb, var(--paper) 96%, var(--surface));
  overflow: hidden;
}
.site-rail .rail-top { display: flex; justify-content: flex-end; margin-bottom: 20px; }
:is(.site-rail, .mobile-shell-header) .hero-name { display: flex; align-items: center; gap: 10px; }
:is(.site-rail, .mobile-shell-header) .hero-name-text {
  color: var(--ink);
  font: 500 20px/1.4 var(--sans);
  letter-spacing: -0.02em;
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}
:is(.site-rail, .mobile-shell-header) .hero-role { margin-top: 6px; color: var(--muted); font: 400 14px/1.6 var(--sans); letter-spacing: -0.01em; }
:is(.site-rail, .mobile-shell-header) .hero-status {
  display: inline-flex;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 4px 8px;
  border: 1px solid var(--rule);
  border-radius: 999px;
  background: var(--surface);
  color: var(--muted);
  font: 400 12px/1.4 var(--sans);
  letter-spacing: -.2px;
  white-space: nowrap;
}
:is(.site-rail, .mobile-shell-header) .hero-name .hero-status { font-size: 12px; }
:is(.site-rail, .mobile-shell-header) .hero-status::before { content: ""; width: 6px; height: 6px; margin-right: 4px; border-radius: 50%; background: var(--available); }
.site-rail__footer { margin-top: auto; padding-top: 32px; }
.site-rail__nav,
.site-rail__ai { display: grid; gap: 10px; }
.site-rail__nav a,
.site-rail__ai a,
.site-rail__email { width: fit-content; color: var(--muted); font: 400 14px/1.6 var(--sans); letter-spacing: -0.01em; transition: color .15s ease; }
.site-rail__nav a { position: relative; }
.site-rail__nav a[aria-current='page'] { padding-left: 18px; color: var(--ink); font-weight: 500; }
.site-rail__nav a[aria-current='page']::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  width: 8px;
  height: 8px;
  background: var(--accent);
}
.site-rail__nav a:hover,
.site-rail__ai a:hover,
.site-rail__email:hover { color: var(--accent); }
.site-rail__ai { margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--rule); gap: 8px; }
.site-rail__ai .ai-button {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 9px 10px;
  border: 1px solid var(--rule);
  border-radius: 6px;
  background: var(--surface);
  color: var(--ink);
  font: 500 13px/1.25 var(--sans);
}
.site-rail__ai .ai-button:hover { border-color: var(--ink); color: var(--ink); }
.site-rail__ai .ai-button img { width: 16px; height: 16px; flex: 0 0 16px; }
:root[data-theme='dark'] .site-rail__ai .ai-button img { filter: invert(1); }
.site-rail__email { display: block; margin-top: 18px; }
.site-rail__social { display: flex; align-items: center; gap: 16px; margin-top: 14px; }
.site-rail__social a { display: grid; place-items: center; color: var(--muted); transition: color .15s ease; }
.site-rail__social a:hover { color: var(--accent); }
.site-rail__social svg { width: 20px; height: 20px; fill: currentColor; }

/* The rail carries the site links, so the top bar would just repeat them. */
@media (min-width: 980px) {
  body.has-rail .top-nav { display: none; }
}
@media (max-width: 979px) {
  body.has-rail { padding-left: 0; }
}

/* The portrait is a desktop affordance; on a phone it would hang off the page. */
@media (max-width: 979px) {
  .nike-photo { display: none; }
}

/* The rail never scrolls; on a short screen it tightens instead. */
@media (max-height: 860px) {
  .site-rail { padding-top: 16px; }
  .site-rail__footer { padding-top: 20px; }
  .site-rail__ai { margin-top: 14px; padding-top: 14px; }
  .site-rail__ai .ai-button { padding: 8px 10px; }
  .site-rail__email { margin-top: 12px; }
  .site-rail__social { margin-top: 10px; }
}

/* Hovering the name brings the portrait in: a short fade with a small rise,
   the same easing the rest of the site uses. Focus shows it for keyboards. */
/* Anchored to the rail, not the name, so it sits clear of the rail's edge. */
.nike-preview { display: inline-block; }
.nike-photo {
  position: fixed;
  top: 76px;
  left: calc(var(--rail-w) + 20px);
  z-index: 200;
  width: 300px;
  padding: 4px;
  border: 1px solid var(--rule);
  background: var(--paper);
  box-shadow: 0 10px 28px #00000014;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-6px) scale(.98);
  transform-origin: left center;
  transition: opacity 140ms ease-out, transform 180ms var(--ease-out), visibility 0s linear 180ms;
}
.nike-photo img { display: block; width: 100%; height: auto; }
.nike-preview:hover .nike-photo,
.nike-preview:focus-within .nike-photo {
  opacity: 1;
  visibility: visible;
  transform: translateX(0) scale(1);
  transition-delay: 0s;
  transition-duration: 200ms, 240ms, 0s;
}

@media (prefers-reduced-motion: reduce) {
  .nike-photo, .nike-preview:hover .nike-photo { transition: none; transform: none; }
}

/* Two ways to ask about the work: ChatGPT outlined, Claude filled. */
.site-rail__ai .ai-button {
  justify-content: center;
  padding: 11px 12px;
  border-radius: 8px;
  background: var(--paper);
  font-weight: 500;
}
.site-rail__ai .ai-button:hover { border-color: var(--ink); }
.site-rail__ai .ai-button--claude {
  border-color: var(--claude);
  background: var(--claude);
  color: #fff;
}
.site-rail__ai .ai-button--claude:hover {
  border-color: #b8634a;
  background: #b8634a;
  color: #fff;
}
:root[data-theme='dark'] .site-rail__ai .ai-button--claude img { filter: none; }

.site-rail__ai .ai-icon { width: 16px; height: 16px; flex: 0 0 16px; }

/* ── One AI CTA with a menu above it ─────────────────────────────── */
/* The menu opens upward, so the CTA keeps a gap above it: the menu lands in
   empty space instead of covering the nav links. */
.site-rail__ai {
  margin-top: 108px;
  padding-top: 0;
  border-top: 0;
}

.ai-cta { position: relative; }
.ai-cta::before {
  content: "";
  position: absolute;
  right: 0;
  bottom: 100%;
  left: 0;
  height: 12px;
}

.ai-cta__trigger {
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  padding: 11px 14px;
  border: 0;
  border-radius: 10px;
  background: var(--ink);
  color: var(--bg);
  font: 500 14px/1.4 var(--sans);
  letter-spacing: -0.01em;
  cursor: pointer;
  transition: opacity .15s ease, transform .15s cubic-bezier(.32,.72,0,1);
}
.ai-cta__trigger:hover,
.ai-cta.is-open .ai-cta__trigger { opacity: .9; }
.ai-cta__trigger:active { transform: scale(.985); }

.ai-cta__icons { display: inline-flex; align-items: center; }
.ai-cta__icons > * { width: 16px; height: 16px; flex: 0 0 16px; }
.ai-cta__icons > * + * { margin-left: 6px; }
.ai-cta__icons svg:not(.ai-icon--claude) { color: var(--bg); }
.ai-cta__label { flex: 1; text-align: left; }

.ai-menu {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  right: 0;
  z-index: 20;
  display: grid;
  gap: 2px;
  padding: 4px;
  border: 1px solid var(--rule);
  border-radius: 10px;
  background: var(--bg);
  box-shadow: 0 12px 32px rgb(0 0 0 / 12%), 0 2px 6px rgb(0 0 0 / 6%);
  opacity: 0;
  transform: translateY(6px) scale(.97);
  transform-origin: bottom center;
  transition: opacity .18s ease, transform .18s cubic-bezier(.32,.72,0,1);
}
.ai-cta.is-open .ai-menu { opacity: 1; transform: translateY(0) scale(1); }

.ai-menu__item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 7px;
  color: var(--muted);
  font: 400 14px/1.4 var(--sans);
  letter-spacing: -0.01em;
  transition: background .12s ease, color .12s ease;
}
.ai-menu__item:hover { background: var(--surface); color: var(--ink); }
.ai-menu__item svg { width: 16px; height: 16px; flex: 0 0 16px; }

/* ── Social links, now a footer under the content ────────────────── */
.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 40px;
  margin-top: 96px;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
}
.site-footer a {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: .04em;
  transition: color .15s ease;
}
.site-footer a:hover { color: var(--accent); }

/* ── The travelling nav square ───────────────────────────────────── */
.site-rail__nav,
.home-rail__nav { position: relative; }
.site-rail__nav a,
.home-rail__nav a { padding-left: 18px; }
.site-rail__nav a[aria-current='page']::before,
.home-rail__nav a[aria-current='page']::before { display: none; }

.nav-marker {
  position: absolute;
  top: 0;
  left: 0;
  width: 8px;
  height: 8px;
  border-radius: 2px;
  background: var(--accent);
  opacity: 0;
  pointer-events: none;
}

.site-rail { background: #fefdfd; }
body.has-rail { background: var(--surface); }


@media (max-width: 979px) {
  .site-footer { margin-top: 64px; gap: 10px 28px; }
}

/* ── Home's headline lives in the rail ───────────────────────────── */
.site-rail .hero-headline {
  margin-top: 20px;
  max-width: 21ch;
  font: 500 20px/1.3 var(--sans);
  letter-spacing: -.035em;
}
.site-rail .hero-support {
  margin-top: 14px;
  max-width: 34ch;
  color: var(--muted);
  font: 400 14px/1.6 var(--sans);
  letter-spacing: -0.01em;
}
.site-rail .hero-marquee { display: none; }

/* Below 980px the rail becomes a drawer behind a floating hamburger. */
@media (max-width: 979px) {
  body.has-rail .site-rail {
    display: flex;
    position: fixed;
    inset: 0 0 0 auto;
    width: min(330px, 86vw);
    height: 100dvh;
    padding: 72px 22px 24px;
    border-right: 0;
    border-left: 1px solid var(--rule);
    background: var(--bg);
    box-shadow: none;
    overflow-y: auto;
    z-index: 200;
    transform: translateX(100%);
    transition: transform .34s cubic-bezier(.32,.72,0,1);
  }
  body.rail-open .site-rail { transform: translateX(0); }

  /* The top bar would repeat what the drawer already holds. */
  body.has-rail .top-nav { display: none; }
  body.has-rail .site-rail .rail-top { display: flex; justify-content: flex-start; margin-bottom: 18px; }
  body.has-rail .site-rail__footer { margin-top: 28px; padding-top: 0; }
  body.has-rail .site-rail__ai { margin-top: 28px; }
  body.has-rail .site-rail .hero-id { display: block; }
  body.has-rail :is(.site-rail, .mobile-shell-header) .hero-role { margin-top: 6px; }
  body.has-rail :is(.site-rail, .mobile-shell-header) .hero-name { flex-wrap: nowrap; }
  body.has-rail :is(.site-rail, .mobile-shell-header) .hero-name-text { white-space: nowrap; }
  body.has-rail :is(.site-rail, .mobile-shell-header) .hero-status { margin-left: 0; flex: 0 0 auto; width: auto; }

}

/* The floating hamburger and its scrim exist only on small screens. */
.rail-toggle,
.rail-scrim { display: none; }

@media (max-width: 979px) {
  .rail-toggle {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: fixed;
    top: 14px;
    right: 14px;
    z-index: 220;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 1px solid var(--rule);
    border-radius: 10px;
    background: var(--paper);
    backdrop-filter: none;
    box-shadow: none;
    color: var(--ink);
    cursor: pointer;
  }
  .rail-toggle span {
    display: block;
    width: 17px;
    height: 1.5px;
    border-radius: 2px;
    background: currentColor;
    transition: transform .3s cubic-bezier(.32,.72,0,1), opacity .18s ease;
  }
  .rail-toggle span + span { margin-top: 4px; }
  body.rail-open .rail-toggle span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
  body.rail-open .rail-toggle span:nth-child(2) { opacity: 0; }
  body.rail-open .rail-toggle span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

  .rail-scrim {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 190;
    background: rgb(0 0 0 / 34%);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
  }
  body.rail-open .rail-scrim { opacity: 1; pointer-events: auto; }
  body.rail-open { overflow: hidden; }
}

@media (prefers-reduced-motion: reduce) {
  .site-rail, .rail-toggle span, .rail-scrim { transition: none; }
}

:root { --rail-background: #fefdfd; }
:root[data-theme='dark'] { --rail-background: var(--paper); }
body.has-rail .site-rail { background: var(--rail-background); }
.site-rail { overflow-y: auto; }
.site-rail .hero { flex-shrink: 1; }
.site-rail__footer { flex-shrink: 0; }
.site-rail__nav a { line-height: 24px; }
.site-rail__ai .ai-menu__item { width: 100%; }
.ai-cta::before { pointer-events: none; }
.ai-cta.is-open::before { pointer-events: auto; }
.ai-menu {
  visibility: hidden;
  pointer-events: none;
  transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out), visibility 0s linear 180ms;
}
.ai-cta.is-open .ai-menu { visibility: visible; pointer-events: auto; transition-delay: 0s; }
.ai-cta.is-instant .ai-menu { transition: none; }
.ai-cta__trigger:active { transform: scale(.97); }
.ai-cta__trigger:focus-visible,
.ai-menu__item:focus-visible,
.site-rail a:focus-visible,
.rail-toggle:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.ai-menu__item:focus-visible { background: var(--surface); }
.ai-menu__item .ai-icon { width: 16px; height: 16px; flex: 0 0 16px; }
.nike-photo { pointer-events: none; }
@media (max-width: 979px) {
  body.has-rail .site-rail { transition-duration: 240ms; }
  /* Enough space for the upward menu without covering navigation. */
  body.has-rail .site-rail__ai { margin-top: 108px; }
}
@media (hover: none) {
  .ai-cta__trigger:hover { opacity: 1; }
  .nike-preview:hover .nike-photo { visibility: hidden; }
}
@media (prefers-reduced-motion: reduce) {
  .ai-menu { transform: none; transition: opacity 100ms ease, visibility 0s linear 100ms; }
  .ai-cta.is-open .ai-menu, .ai-cta__trigger:active { transform: none; }
  body.has-rail .site-rail, .nav-marker { transition: none !important; }
}

/* A single 18px inset aligns the introduction with all project content. */
:root { --mobile-content-inset: 18px; }
.site-rail__nav { grid-auto-rows: 24px; gap: 10px; }
.site-rail__nav a { height: 24px; padding-left: 18px; white-space: nowrap; }
.nav-marker { transition: none; }
.nav-marker[data-ready="true"] { opacity: 1; }
.marker-positioned.marker-animated .nav-marker { transition: transform 180ms cubic-bezier(.23,1,.32,1); }
@media (max-width: 979px) {
  body.has-rail .site-rail__footer { margin-top: 0; }
}