/* Home and projects share a narrow charcoal layout with Hanken Grotesk
   typography, short descriptions, and direct repository links. */

@font-face {
  font-family: "Hanken Grotesk";
  src: url("/assets/fonts/HankenGrotesk-Variable.f1a70e8b.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

:root {
  color-scheme: dark;
  --bg: #161616;
  --bg-rgb: 22, 22, 22;
  --fg: #f2f2f2;
  --muted: #a0a0a0;
  --soft: #a0a0a0;
  --rule: rgba(242, 242, 242, 0.1);
  --underline: #555;
  --underline-hover: #a0a0a0;
  --link: #74b1fd;
  --faint: #7e7e7e;
  --column: 36.375rem;
  --font-sans:
    "Hanken Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
    "Helvetica Neue", Arial, sans-serif;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  /* Compact the typography, column, and spacing together. */
  font-size: 80%;
  background: var(--bg);
  color: var(--fg);
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  min-height: 100%;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 460;
  line-height: 1.25rem;
  letter-spacing: -0.00563rem;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

::selection {
  color: var(--fg);
  background: var(--rule);
}

a {
  color: inherit;
  text-decoration: none;
}

h1,
h2,
h3 {
  font-size: inherit;
  font-weight: inherit;
  line-height: inherit;
}

/* ---- The column ------------------------------------------------------ */

.page {
  max-width: var(--column);
  margin: 0 auto;
  padding: 5rem 1rem 2.5rem;
}

/* A page-colored fade pinned to the top of the window, so scrolled text dissolves
   into the page edge rather than being cut by it. */
.page::before {
  content: "";
  pointer-events: none;
  z-index: 9;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 8rem;
  background: linear-gradient(
    180deg,
    var(--bg) 0,
    rgba(var(--bg-rgb), 0.74) 19%,
    rgba(var(--bg-rgb), 0.54) 34%,
    rgba(var(--bg-rgb), 0.38) 47%,
    rgba(var(--bg-rgb), 0.28) 56.5%,
    rgba(var(--bg-rgb), 0.19) 65%,
    rgba(var(--bg-rgb), 0.13) 73%,
    rgba(var(--bg-rgb), 0.075) 80%,
    rgba(var(--bg-rgb), 0.04) 86%,
    rgba(var(--bg-rgb), 0.02) 91%,
    rgba(var(--bg-rgb), 0.008) 95%,
    rgba(var(--bg-rgb), 0)
  );
}

@media (max-width: 48rem) {
  .page {
    padding: 2rem 1.5rem 2.5rem;
  }
  /* Pages with the back control keep clear of it. */
  .back ~ .page {
    padding-top: 5rem;
  }
  .page::before {
    height: 2.5rem;
  }
}

/* ---- The bio --------------------------------------------------------- */

.bio > header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-bottom: 0.5rem;
}

.bio > header h1 {
  font-weight: 500;
}

.bio > header time {
  color: var(--muted);
}

/* An inline link is a word with a hairline under it, darkening on hover. */
.link {
  position: relative;
  display: inline;
  transition: all 0.2s ease;
}
.link::before {
  pointer-events: none;
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  border-radius: 2px;
  background: var(--underline);
  transition: inherit;
}
.link:hover::before {
  background: var(--underline-hover);
}
.link:focus-visible {
  border-radius: 2px;
  padding: 0 2px;
  margin: 0 -2px;
  transition: none;
  outline: 2px solid rgba(0, 122, 255, 0.5);
}

/* ---- Homepage and project index -------------------------------------- */

html:has(body.home) {
  font-size: 100%;
  min-height: 100%;
  overflow-x: clip;
}

body.home {
  min-height: 100dvh;
  overflow-x: clip;
  position: relative;
  isolation: isolate;
  background: var(--bg);
  font-size: 0.875rem;
  line-height: 1.25rem;
}

body.home > .page {
  position: relative;
  z-index: 1;
  width: 100%;
}

body.home > .page::before {
  content: none;
}

/* Match benji.org's 14px / 20px homepage text. The embedded profile cards
   retain their own typography; the name has the reference's medium weight. */
body.home .bio {
  text-align: left;
  font-size: inherit;
  font-weight: 460;
  line-height: inherit;
}

body.home .bio > header {
  width: fit-content;
  max-width: 100%;
  margin-inline: 0;
  align-items: flex-start;
  text-align: left;
}

body.home .bio > header h1 {
  font-size: 1.875rem;
  line-height: 2.25rem;
  font-weight: 700;
}

/* Keep the social icon row aligned with the content. */
body.home .elsewhere {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.home-columns {
  display: grid;
}

.home-columns > .work {
  min-width: 0;
}

.experience-list {
  list-style: none;
}
.work-organization {
  color: var(--muted);
}

.experience-link {
  display: block;
}
.organization-link {
  display: inline-flex;
  align-items: baseline;
  gap: 0.375rem;
}
.link-label {
  position: relative;
  display: inline-block;
}
.link-label::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}
.link-arrow {
  display: inline-block;
  flex: none;
  color: var(--soft);
  opacity: 0;
  transform: translate(-3px, 3px) scale(0.8);
  transition:
    opacity 180ms ease,
    transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}
.animated-link:is(:hover, :focus-visible) .link-label::after {
  transform: scaleX(1);
}
.animated-link:is(:hover, :focus-visible) .link-arrow {
  opacity: 1;
  transform: translate(0, 0) scale(1);
}
.animated-link:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 4px;
  border-radius: 2px;
}
@media (hover: none) {
  .animated-link .link-arrow {
    opacity: 1;
    transform: none;
  }
}
@media (prefers-reduced-motion: reduce) {
  .link-label::after,
  .link-arrow {
    transition: none;
  }
}

.view-all-projects {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;

  color: var(--soft);
}
.view-all-projects:hover,
.view-all-projects:focus-visible {
  color: var(--fg);
}
.view-all-projects:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 4px;
}

html:has(body.projects-index) {
  font-size: 100%;
}
.projects-index > .page::before {
  content: none;
}
.breadcrumbs {
  margin-bottom: 1.5rem;
  font-size: 0.875rem;
  line-height: 1.25rem;
}
.breadcrumbs ol {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  list-style: none;
}
.breadcrumbs a,
.breadcrumb-separator {
  color: var(--soft);
}
.breadcrumbs a:hover {
  color: var(--fg);
}
.breadcrumbs a:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 4px;
  border-radius: 2px;
}

.work > h2 {
  margin-bottom: 0.625rem;
  color: var(--soft);
  font-size: 0.875rem;
  font-weight: 460;
}

.project-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  list-style: none;
}
.project-grid > li {
  min-width: 0;
}

.work-project {
  display: block;
  height: 100%;
  list-style: none;
  cursor: default;
}
.work-title {
  display: block;

  transition: color 0.15s ease;
}
.work-description {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  margin-top: 0.1875rem;
  color: var(--soft);
  font-size: 0.875rem;
  font-weight: 460;
  line-height: 1.0625rem;
  transition: color 0.15s ease;
}
.project-heading {
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.project-heading .work-title {
  min-width: 0;
}
.project-repo {
  flex: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.5rem;
  height: 1.5rem;
  color: var(--soft);
  transition: color 180ms ease;
}
.project-repo + .project-repo {
  margin-inline-start: -0.375rem;
  justify-content: flex-start;
}
.work-project:is(:hover, :focus-within) .project-repo {
  color: var(--fg);
}
.project-lock-icon {
  width: 0.875rem;
  height: 0.875rem;
}
.project-repo-icon {
  width: 0.875rem;
  height: 0.875rem;
  background: currentColor;
  -webkit-mask: url("/assets/img/gh-logo.svg") center / contain no-repeat;
  mask: url("/assets/img/gh-logo.svg") center / contain no-repeat;
}
a.project-repo:hover {
  color: var(--fg);
}
.project-external-arrow {
  display: inline-block;
  transition: transform 240ms cubic-bezier(0.22, 1, 0.36, 1);
}
.work-title + .project-repo .project-external-arrow {
  width: 0.875rem;
  text-align: start;
}
.project-repo:is(:hover, :focus-visible) .project-external-arrow {
  transform: translate(2px, -2px);
}
.project-repo:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 4px;
  border-radius: 2px;
}
.projects-index .work-project {
  padding-block: 0.75rem;
}
.projects-index .work-title {
  font-size: 0.9375rem;
  line-height: 1.5;
}
.projects-index .work-description {
  margin-top: 0;
  font-size: 0.875rem;
  line-height: 1.5;
  font-weight: 400;
}
/* Match the reference's typography while retaining the compact list spacing. */
body.home .work > h2 {
  font-size: 0.75rem;
  line-height: 1rem;
  font-weight: 500;
  text-transform: uppercase;
}
body.home .experience-list > li {
  font-size: 0.9375rem;
  line-height: 1.625;
  font-weight: 400;
}
body.home .work-title {
  font-size: 0.9375rem;
  line-height: 1.5;
  font-weight: 500;
}
body.home .work-description {
  font-size: 0.875rem;
  line-height: 1.5;
  font-weight: 400;
}

/* Reference spacing: 32px between sections, 8px below headings. */
body.home .home-columns {
  gap: 2rem;
  padding-top: 2rem;
}
body.home .work > h2 {
  margin-bottom: 0.5rem;
  letter-spacing: 0.05em;
}
body.home .work-project,
body.home .experience-list > li {
  padding: 0;
  min-height: 0;
}
body.home .experience-list > li + li {
  margin-top: 0.375rem;
}
body.home .project-grid {
  row-gap: 0.75rem;
}
body.home .work-description {
  margin-top: 0;
}
.project-actions {
  margin-top: 0.5rem;
}
.project-actions .view-all-projects {
  margin: 0;
  padding: 0;
  gap: 0.375rem;
  border-radius: 0;
  background: none;
  font-weight: 400;
}

/* Both pages share the same content bounds and responsive insets. */
:root {
  --page-top: min(
    clamp(3.5rem, calc(7.142857vw + 0.928571rem), 5.5rem),
    max(2rem, 10svh)
  );
  --page-left: max(1rem, env(safe-area-inset-left));
  --page-right: max(1rem, env(safe-area-inset-right));
}
html:has(body:is(.home, .projects-index)) {
  scrollbar-gutter: stable;
}
body.home > .page,
body.projects-index > .page {
  max-width: 576px;
  padding: calc(var(--page-top) + env(safe-area-inset-top)) var(--page-right)
    max(2rem, env(safe-area-inset-bottom)) var(--page-left);
}
.project-heading .work-title,
.organization-link {
  overflow-wrap: anywhere;
}
.organization-link {
  max-width: 100%;
}
.organization-link .link-label {
  min-width: 0;
}
@media (hover: none), (pointer: coarse) {
  a.project-repo {
    width: 44px;
    height: 44px;
    margin-block: -10px;
  }
  .experience-link {
    min-height: 44px;
    align-content: center;
  }
  .project-actions .view-all-projects,
  .breadcrumbs a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
  .breadcrumbs a {
    min-width: 44px;
    margin-block: -12px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .work-title,
  .work-description,
  .project-repo {
    transition: none;
  }
  .project-external-arrow {
    transition: none;
  }
  .project-repo:is(:hover, :focus-visible) .project-external-arrow {
    transform: none;
  }
}

/* Shared theme control stays inside the same bounds as the content. */
:root.light {
  color-scheme: light;
  --bg: #f7f7f5;
  --bg-rgb: 247, 247, 245;
  --fg: #242424;
  --muted: #626262;
  --soft: #626262;
  --faint: #707070;
  --rule: rgba(36, 36, 36, 0.12);
  --underline: #aaa;
  --underline-hover: #626262;
  --link: #1765b7;
}
body.home > .page,
body.projects-index > .page {
  position: relative;
  --theme-top: calc(var(--page-top) + env(safe-area-inset-top) - 8px);
}
.theme-toggle {
  view-transition-name: theme-toggle;
  position: absolute;
  top: var(--theme-top);
  right: calc(var(--page-right) - 4px);
  z-index: 3;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 50%;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}
.theme-toggle:hover {
  color: var(--fg);
}
.theme-toggle:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}
.theme-toggle svg {
  grid-area: 1 / 1;
  width: 21px;
  height: 21px;
  transform-origin: center;
}
.theme-sun {
  visibility: hidden;
}
.light .theme-moon {
  visibility: hidden;
}
.light .theme-sun {
  visibility: visible;
}
/* Fade the complete palette together, keeping the live icon animation clear. */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 200ms;
  animation-timing-function: ease-in-out;
}
::view-transition-group(theme-toggle),
::view-transition-new(theme-toggle) {
  animation: none;
}
::view-transition-old(theme-toggle) {
  display: none;
}
::view-transition {
  pointer-events: none;
}
@supports not (view-transition-name: root) {
  html,
  body {
    transition:
      background-color 200ms ease-in-out,
      color 200ms ease-in-out;
  }
}
body.home .bio > header {
  max-width: calc(100% - 48px);
}
.breadcrumbs {
  padding-right: 48px;
}
@media (prefers-reduced-motion: reduce) {
  html,
  body {
    transition: none;
  }
  ::view-transition-old(root),
  ::view-transition-new(root) {
    animation: none;
  }
}

/* ---- Entrance -------------------------------------------------------- */

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
/* The same small lift and stagger introduce each section on either page.
   Backwards fill keeps delayed sections hidden without retaining a transform
   after the animation, so links and hover cards keep their normal stacking. */
@keyframes section-enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: no-preference) {
  .page-reveal {
    animation: section-enter 550ms cubic-bezier(0.22, 1, 0.36, 1) backwards;
    animation-delay: calc(var(--reveal-order, 0) * 60ms);
  }
}

/* ---- Custom 404 page ------------------------------------------------- */

.back {
  position: fixed;

  z-index: 15;
}

.article > header {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding-bottom: 0.5rem;
}
.article > header h1 {
  font-weight: 500;
  text-wrap: balance;
}
.article > header .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.article > p {
  padding-top: 1rem;
}

/* ---- Entrance, for the inner pages ---------------------------------- */

@media (prefers-reduced-motion: no-preference) {
  .article > * {
    animation: rise 0.5s ease both;
  }
  .article > :nth-child(1) {
    animation-delay: 0s;
  }
  .article > :nth-child(2) {
    animation-delay: 0.05s;
  }
}