/* ————————————————————————————————————————————————————————————————
   Yogesh Bhusara — portfolio
   Paper-inspired editorial system.

   Contents
   01  Fonts
   02  Reset + tokens
   03  Base typography
   04  Layout primitives (shell, section grid, rules)
   05  Header + navigation
   06  Masthead (home + photo constellation)
   07  Index entries (work lists)
   08  Compact lists (lab, notes, experience)
   09  Contact + footer
   10  Work page + GitHub activity
   11  Case study overlay
   12  About page
   13  Utilities, focus, reduced motion
   ———————————————————————————————————————————————————————————————— */

/* ——— 01 Fonts ——— */
@font-face {
  font-family: "Geist Sans";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("https://cdn.jsdelivr.net/fontsource/fonts/geist-sans@latest/latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Geist Sans";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("https://cdn.jsdelivr.net/fontsource/fonts/geist-sans@latest/latin-500-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Geist Sans";
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url("https://cdn.jsdelivr.net/fontsource/fonts/geist-sans@latest/latin-600-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url("https://cdn.jsdelivr.net/fontsource/fonts/geist-mono@latest/latin-400-normal.woff2") format("woff2");
}

@font-face {
  font-family: "Geist Mono";
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url("https://cdn.jsdelivr.net/fontsource/fonts/geist-mono@latest/latin-500-normal.woff2") format("woff2");
}

/* ——— 02 Reset + tokens ——— */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  color-scheme: light;

  /* Color — warm paper + near-black ink */
  --paper: #faf8f3;
  --page-wash: #ebe6dc;
  --surface: #f2efe7;
  --ink: #211e19;
  --ink-secondary: #5b564c;
  --ink-muted: #8a8478;
  --rule: #e2ddd1;
  --rule-strong: #c9c2b2;
  --accent: #ff4500;
  --accent-soft: rgba(255, 69, 0, 0.14);

  /* Typography */
  --font-sans: "Geist Sans", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: "Geist Mono", ui-monospace, "SF Mono", Menlo, monospace;

  --text-display: clamp(2.1rem, 5.2vw, 3.15rem);   /* home masthead name */
  --text-title: clamp(1.6rem, 3.4vw, 2.1rem);      /* page titles */
  --text-heading: 1.25rem;                          /* entry / section headings */
  --text-body: 1rem;
  --text-small: 0.875rem;
  --text-meta: 0.8125rem;                           /* mono metadata */
  --text-label: 0.6875rem;                          /* mono uppercase labels */

  --leading-tight: 1.15;
  --leading-heading: 1.3;
  --leading-body: 1.65;

  --tracking-tight: -0.02em;
  --tracking-label: 0.14em;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;

  /* Layout */
  --width-content: 66rem;   /* page shell */
  --width-reading: 40rem;   /* long-form text */
  --gutter: clamp(1.25rem, 5vw, 3rem);
  --label-col: 12rem;       /* left label column on wide screens */

  /* Side dot grid — one token so every page / both rails match */
  --page-dot-size: 8px;
  --page-dot-grid: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8'%3E%3Ccircle cx='1' cy='1' r='0.95' fill='%237a7468' fill-opacity='0.14'/%3E%3C/svg%3E");

  /* Borders */
  --hairline: 1px solid var(--rule);
  --hairline-strong: 1px solid var(--rule-strong);
  --hairline-dashed: 1px dashed var(--rule);

  /* Motion — strong custom curves (built-in CSS easings are too soft) */
  --dur-fast: 140ms;
  --dur: 200ms;
  --dur-slow: 300ms;
  --dur-enter: 520ms;
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --ease-drawer: cubic-bezier(0.32, 0.72, 0, 1);
  --ease: var(--ease-out);

  /* Kept for github-activity.js tinting */
  --color-brand: #ff4500;
}

html.dark {
  color-scheme: dark;
  --paper: #18160f;
  --page-wash: #12100c;
  --surface: #201d15;
  --ink: #eae5d8;
  --ink-secondary: #a8a190;
  --ink-muted: #7b7565;
  --rule: #2d2a20;
  --rule-strong: #45402f;
  --accent: #ff5a1f;
  --accent-soft: rgba(255, 90, 31, 0.18);
  --color-brand: #ff5a1f;
  --page-dot-grid: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='8' height='8'%3E%3Ccircle cx='1' cy='1' r='0.95' fill='%23b8b09e' fill-opacity='0.11'/%3E%3C/svg%3E");
}

/* ——— 03 Base typography ——— */
html {
  scroll-behavior: smooth;
  width: 100%;
  min-height: 100%;
  overflow-x: clip;
  -webkit-text-size-adjust: 100%;
  background-color: var(--page-wash);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-body);
  line-height: var(--leading-body);
  color: var(--ink);
  background-color: var(--page-wash);
  width: 100%;
  min-width: 0;
  min-height: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Explicit left + right dot rails (outside the framed column).
   Collapse to 0 when viewport ≤ --width-content (phone/tablet).
   background-attachment: fixed keeps one viewport-aligned grid on every page. */
body::before,
body::after {
  content: "";
  position: fixed;
  top: 0;
  bottom: 0;
  z-index: 0;
  pointer-events: none;
  background-color: var(--page-wash);
  background-image: var(--page-dot-grid);
  background-size: var(--page-dot-size) var(--page-dot-size);
  background-position: 0 0;
  background-repeat: repeat;
  background-attachment: fixed;
}

/* Use % (not 100vw) so rails track the layout viewport / scrollbar correctly */
body::before {
  left: 0;
  right: calc(50% + min(50%, var(--width-content) / 2));
}

body::after {
  right: 0;
  left: calc(50% + min(50%, var(--width-content) / 2));
}

.site-header,
.shell.page {
  position: relative;
  z-index: 1;
}

h1,
h2,
h3,
h4 {
  font-weight: 500;
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

p {
  max-width: var(--width-reading);
  text-wrap: pretty;
}

li,
figcaption,
blockquote {
  text-wrap: pretty;
}

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

.prose a,
.link {
  color: var(--ink);
  text-decoration: underline;
  text-decoration-color: var(--rule-strong);
  text-decoration-thickness: 1px;
  text-underline-offset: 0.22em;
  transition: color var(--dur-fast) var(--ease), text-decoration-color var(--dur-fast) var(--ease);
}

.prose a:focus-visible,
.link:focus-visible {
  color: var(--accent);
  text-decoration-color: var(--accent);
}

strong {
  font-weight: 600;
}

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

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

/* Mono label — small uppercase, used for section labels + metadata keys */
.label {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-muted);
}

/* Mono metadata value — dates, roles, areas */
.meta {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 400;
  letter-spacing: 0.01em;
  color: var(--ink-secondary);
}

/* ——— 04 Layout primitives ——— */
.shell {
  width: 100%;
  max-width: var(--width-content);
  margin-inline: auto;
  padding-inline: var(--gutter);
  overflow: visible;
}

.page {
  padding-bottom: 0;
  overflow: visible;
}

/* Framed content column on page wash (Chandu-style border-x) */
.shell.page {
  background-color: var(--paper);
  border-inline: var(--hairline);
}

/* Section: mono label column left, content right (stacks on small screens).
   Break out of shell gutter so dashed rules run edge-to-edge of the frame. */
.doc-section {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-4) var(--space-6);
  margin-inline: calc(var(--gutter) * -1);
  padding: var(--space-7) var(--gutter);
  border-top: var(--hairline-dashed);
}

.doc-section:first-child {
  border-top: none;
}

@media (min-width: 768px) {
  .doc-section {
    grid-template-columns: var(--label-col) minmax(0, 1fr);
    column-gap: 0;
    row-gap: var(--space-4);
  }

  /* Full-height vertical rule: section top → bottom */
  .doc-section::before {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    left: calc(var(--gutter) + var(--label-col));
    border-left: var(--hairline-dashed);
    pointer-events: none;
  }

  .doc-section__label {
    padding-right: var(--space-5);
  }

  .doc-section__body {
    padding-left: var(--space-6);
  }
}

.doc-section__label {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
}

.doc-section__label .label {
  color: var(--ink-secondary);
}

.doc-section__index {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.doc-section__body {
  min-width: 0;
}

.doc-section__intro {
  margin-bottom: var(--space-5);
}

.doc-section__note {
  margin-top: var(--space-5);
}

.doc-section__note--flush {
  margin-top: 0;
}

.doc-section__note a {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  width: max-content;
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-secondary);
  text-decoration: none;
  padding: 0.3rem 0.5rem;
  margin-inline: -0.5rem;
  border-radius: 0.3rem;
  background-color: transparent;
  transition:
    color var(--dur) var(--ease-out),
    background-color var(--dur) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.doc-section__note a:active {
  transform: scale(0.96);
}

.doc-section__note a::after {
  content: "→";
  display: inline-block;
  transition: transform var(--dur-fast) var(--ease-out);
}

.doc-section__note a:focus-visible {
  color: var(--accent);
  background-color: var(--accent-soft);
}

.doc-section__note a:focus-visible::after {
  transform: translateX(0.28em);
}

.prose > p + p {
  margin-top: var(--space-4);
}

.prose ul,
.prose ol {
  max-width: var(--width-reading);
  padding-left: 1.2em;
}

.prose ul li + li,
.prose ol li + li {
  margin-top: var(--space-2);
}

/* ——— 05 Header + navigation ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  max-width: var(--width-content);
  margin-inline: auto;
  background: var(--paper);
  border-bottom: var(--hairline-dashed);
  border-inline: var(--hairline);
  transition:
    background-color var(--dur) var(--ease-out),
    border-color var(--dur) var(--ease-out),
    box-shadow var(--dur) var(--ease-out);
}

.site-header.is-scrolled {
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  border-bottom-color: transparent;
  box-shadow: 0 1px 0 color-mix(in srgb, var(--rule) 80%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: 3.5rem;
  padding-top: var(--space-2);
  padding-bottom: var(--space-2);
}

.site-wordmark {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  color: var(--ink);
  transition: color var(--dur-fast) var(--ease), opacity var(--dur-fast) var(--ease);
}

.site-wordmark:focus-visible {
  color: var(--accent);
}

.site-wordmark__logo {
  display: block;
  width: 1.3125rem;
  height: auto;
}

.site-header__end {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-width: 0;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  column-gap: calc(clamp(0.85rem, 2.5vw, 1.5rem) + 10px);
  row-gap: var(--space-1);
}

.site-nav__link {
  position: relative;
  font-size: var(--text-small);
  color: var(--ink-secondary);
  padding: var(--space-1) 0;
  transition: color var(--dur-fast) var(--ease-out);
}

.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--dur) var(--ease-out);
}

.site-nav__link:focus-visible {
  color: var(--ink);
}

.site-nav__link:focus-visible::after {
  transform: scaleX(1);
}

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

.site-nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--accent);
}

@media (max-width: 640px) {
  .site-header__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    grid-template-areas:
      "wordmark toggle"
      "nav nav";
    align-items: center;
    gap: var(--space-2) var(--space-4);
    padding-top: var(--space-3);
    padding-bottom: var(--space-3);
  }

  .site-wordmark {
    grid-area: wordmark;
  }

  .site-header__end {
    display: contents;
  }

  .site-nav {
    grid-area: nav;
    justify-content: flex-start;
    margin-top: var(--space-1);
    padding-top: var(--space-2);
    border-top: var(--hairline);
  }

  .theme-toggle {
    grid-area: toggle;
    justify-self: end;
  }
}

/* Explicit desktop header — resets any mobile layout leakage */
@media (min-width: 641px) {
  .site-header__inner {
    display: flex;
    flex-wrap: nowrap;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--space-2);
    padding-bottom: var(--space-2);
  }

  .site-header__end {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    min-width: 0;
  }

  .site-nav {
    margin-top: 0;
    padding-top: 0;
    border-top: none;
    justify-content: flex-end;
  }

  .theme-toggle {
    justify-self: auto;
    margin-left: 0;
  }
}

.site-nav__link--external {
  display: inline-flex;
  align-items: center;
}

.site-nav__link--external::before {
  content: "↗";
  order: 1;
  display: inline-block;
  margin-left: 0.25em;
  font-family: var(--font-mono);
  font-size: 0.75em;
  color: var(--ink-muted);
  transition:
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.site-nav__link--external:focus-visible::before {
  color: var(--ink);
  transform: translate(0.12em, -0.12em);
}

.theme-toggle {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  padding: 0;
  border: var(--hairline);
  border-radius: 50%;
  background: transparent;
  color: var(--ink-secondary);
  cursor: pointer;
  transition:
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

/* Expand hit area to 44×44 without growing the visible control */
.theme-toggle::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 2.75rem;
  height: 2.75rem;
  transform: translate(-50%, -50%);
}

.theme-toggle:active {
  transform: scale(0.96);
}

.theme-toggle:focus-visible {
  color: var(--ink);
  border-color: var(--rule-strong);
}

.theme-toggle__icons {
  position: relative;
  display: block;
  width: 0.95rem;
  height: 0.95rem;
}

.theme-icon {
  width: 0.95rem;
  height: 0.95rem;
  transition:
    opacity 300ms cubic-bezier(0.2, 0, 0, 1),
    filter 300ms cubic-bezier(0.2, 0, 0, 1),
    transform 300ms cubic-bezier(0.2, 0, 0, 1);
}

.theme-icon--sun {
  position: absolute;
  inset: 0;
}

/* Light: moon in, sun out — dark: reverse. Both stay in DOM for exit animation. */
html:not(.dark) .theme-icon--moon {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

html:not(.dark) .theme-icon--sun {
  opacity: 0;
  transform: scale(0.25);
  filter: blur(4px);
  pointer-events: none;
}

html.dark .theme-icon--moon {
  opacity: 0;
  transform: scale(0.25);
  filter: blur(4px);
  pointer-events: none;
}

html.dark .theme-icon--sun {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
}

/* ——— 06 Masthead (home) ——— */
.masthead {
  position: relative;
  display: grid;
  gap: var(--space-7);
  padding: var(--space-8) 0 var(--space-7);
  align-items: center;
  overflow: visible;
}

@media (min-width: 900px) {
  .masthead {
    grid-template-columns: minmax(0, 1.15fr) minmax(17rem, 22rem);
    gap: var(--space-6) var(--space-7);
  }
}

.masthead__copy {
  position: relative;
  z-index: 1;
  min-width: 0;
}

/* Above-fold entrance — CSS only so first paint never blanks */
.masthead__copy > * {
  animation: masthead-enter var(--dur-enter) var(--ease-out) both;
}

.masthead__copy > *:nth-child(1) { animation-delay: 0ms; }
.masthead__copy > *:nth-child(2) { animation-delay: 70ms; }
.masthead__copy > *:nth-child(3) { animation-delay: 130ms; }
.masthead__copy > *:nth-child(4) { animation-delay: 190ms; }
.masthead__copy > *:nth-child(5) { animation-delay: 250ms; }
.masthead__copy > *:nth-child(6) { animation-delay: 310ms; }

@keyframes masthead-enter {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

.masthead__kicker {
  margin-bottom: var(--space-5);
}

.masthead__name {
  font-size: var(--text-display);
  font-weight: 500;
  line-height: var(--leading-tight);
  letter-spacing: -0.03em;
  margin-bottom: var(--space-2);
}

.masthead__role {
  font-size: var(--text-heading);
  font-weight: 400;
  color: var(--ink-secondary);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-5);
  max-width: none;
}

.masthead__lede {
  font-size: 1.0625rem;
  color: var(--ink);
  max-width: var(--width-reading);
}

.masthead__lede + .masthead__lede {
  margin-top: var(--space-3);
  color: var(--ink-secondary);
}

.masthead__facts {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(10rem, max-content));
  gap: var(--space-4) var(--space-7);
  margin-top: var(--space-6);
  padding: var(--space-5);
  border: var(--hairline-dashed);
  background: var(--surface);
}

.masthead__facts div {
  display: grid;
  gap: var(--space-1);
}

.masthead__facts dd {
  font-size: var(--text-small);
  color: var(--ink);
}

/* Hero photo + orbiting interest/tool placeholders (right column) */
.masthead__visual {
  position: relative;
  z-index: 1;
  justify-self: center;
  width: min(100%, 22rem);
  overflow: visible;
}

/* Stack constellation above copy on narrow viewports */
@media (max-width: 899px) {
  .masthead__visual {
    order: -1;
  }
}

@media (min-width: 900px) {
  .masthead__visual {
    justify-self: end;
    width: 100%;
  }
}

.constellation {
  position: relative;
  z-index: 1;
  aspect-ratio: 1;
  width: 100%;
  overflow: visible;
  animation: constellation-enter var(--dur-slow) var(--ease) both;
}

.constellation__portrait {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 31.2%;   /* was ~52% of constellation; −40% */
  height: 33.6%;  /* was ~56% of constellation; −40% */
  transform: translate(-50%, -50%);
  z-index: 1; /* between behind slots (0) and front slots (2) */
  overflow: hidden;
  background: var(--surface);
  border-radius: 0.5rem; /* outer; img clipped — no nested radius needed */
}

.constellation__portrait img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 15%;
  outline: 1px solid rgba(0, 0, 0, 0.1);
  outline-offset: -1px;
}

html.dark .constellation__portrait img {
  outline-color: rgba(255, 255, 255, 0.1);
}

.constellation__tile {
  position: absolute;
  z-index: 2;
  display: grid;
  place-items: center;
  width: var(--tile-size, 18%);
  aspect-ratio: 1;
  padding: 0.25rem;
  background: var(--paper);
  border: var(--hairline-strong);
  border-radius: 0.5rem; /* outer = inner 0.25rem + padding 0.25rem */
  box-shadow: 0 0.45rem 1.25rem rgba(33, 30, 25, 0.12);
  /* Soft sine-like drift; per-tile duration / path via custom props */
  --float-duration: 11s;
  --float-x: 3px;
  --float-y: -7px;
  --float-rot: 0.9deg;
  animation: constellation-float var(--float-duration) cubic-bezier(0.45, 0.05, 0.55, 0.95) infinite;
  animation-delay: var(--float-delay, 0s);
  will-change: transform;
}

.constellation__tile--behind {
  z-index: 0;
}

.constellation__tile--front {
  z-index: 2;
}

.constellation__tile img {
  display: block;
  width: 62%;
  height: 62%;
  object-fit: contain;
}

.constellation__tile img[src$=".png"] {
  width: 78%;
  height: 78%;
}

/* Near-black stroke icons need invert on dark tile surfaces */
html.dark .constellation__tile img[src*="cursor.svg"] {
  filter: invert(1) brightness(1.05);
}

html.dark .constellation__tile {
  background: var(--surface);
  box-shadow: 0 0.45rem 1.35rem rgba(0, 0, 0, 0.4);
}

.constellation__placeholder {
  display: grid;
  place-items: center;
  width: 100%;
  aspect-ratio: 1;
  border: 1px dashed var(--rule-strong);
  border-radius: 0.25rem; /* concentric with tile: 0.5rem − 0.25rem padding */
  color: var(--ink-muted);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.constellation__placeholder::after {
  content: attr(data-label);
}

/* Slots tight to portrait — a/c/f/h behind, b/d overlapping in front.
   Varied duration / drift so tiles don’t bob in lockstep. */
.constellation__tile--a {
  --tile-size: 20%;
  top: 20%;
  left: 20%;
  --float-delay: 0s;
  --float-duration: 12.8s;
  --float-x: 4px;
  --float-y: -9px;
  --float-rot: -1.1deg;
}
.constellation__tile--b {
  --tile-size: 12%;
  top: 18%;
  left: 44%;
  --float-delay: -2.1s;
  --float-duration: 9.6s;
  --float-x: -3px;
  --float-y: -6px;
  --float-rot: 1.4deg;
}
.constellation__tile--c {
  --tile-size: 18%;
  top: 20%;
  right: 18%;
  --float-delay: -4.4s;
  --float-duration: 13.4s;
  --float-x: 5px;
  --float-y: -8px;
  --float-rot: 0.8deg;
}
.constellation__tile--d {
  --tile-size: 11.2%;
  top: calc(38% + 18px);
  right: calc(22% - 16px);
  --float-delay: -1.2s;
  --float-duration: 10.2s;
  --float-x: -4px;
  --float-y: -7px;
  --float-rot: -1.3deg;
}
.constellation__tile--f {
  --tile-size: 17%;
  bottom: 20%;
  right: 20%;
  --float-delay: -5.8s;
  --float-duration: 14.1s;
  --float-x: 3px;
  --float-y: -10px;
  --float-rot: 1deg;
}
.constellation__tile--h {
  --tile-size: 19%;
  bottom: 20%;
  left: 18%;
  --float-delay: -3.3s;
  --float-duration: 11.7s;
  --float-x: -5px;
  --float-y: -8px;
  --float-rot: -0.7deg;
}
.constellation__tile--j {
  --tile-size: 10.5%;
  top: 250px;
  left: 190px;
  --float-delay: -6.5s;
  --float-duration: 9.1s;
  --float-x: 2px;
  --float-y: -5px;
  --float-rot: 1.6deg;
}

@keyframes constellation-enter {
  from {
    opacity: 0;
    transform: translateY(10px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* Organic elliptical drift — multi-step path + sine easing */
@keyframes constellation-float {
  0% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
  20% {
    transform: translate3d(
        calc(var(--float-x) * 0.7),
        calc(var(--float-y) * 0.35),
        0
      )
      rotate(calc(var(--float-rot) * 0.4));
  }
  45% {
    transform: translate3d(
        calc(var(--float-x) * 0.15),
        var(--float-y),
        0
      )
      rotate(var(--float-rot));
  }
  70% {
    transform: translate3d(
        calc(var(--float-x) * -0.85),
        calc(var(--float-y) * 0.45),
        0
      )
      rotate(calc(var(--float-rot) * -0.35));
  }
  100% {
    transform: translate3d(0, 0, 0) rotate(0deg);
  }
}

/* Static on mobile — float reads as jerky/fast on small screens */
@media (max-width: 899px) {
  .constellation,
  .constellation__tile {
    animation: none;
  }
}

/* ——— 07 Index entries (project lists) ——— */
.index-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.index-entry__link {
  display: grid;
  grid-template-columns: 2.5rem minmax(0, 1fr);
  gap: var(--space-2) var(--space-4);
  padding: var(--space-3) 0;
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  font: inherit;
  color: inherit;
  cursor: pointer;
}

@media (min-width: 720px) {
  .index-entry__link {
    grid-template-columns: 2.5rem minmax(0, 1fr) auto;
    align-items: baseline;
  }
}

.index-entry__num {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  color: var(--ink-muted);
  padding-top: 0.3em;
  transition: color var(--dur-fast) var(--ease);
}

.index-entry__main {
  min-width: 0;
}

.index-entry__title {
  display: block;
  font-size: var(--text-heading);
  font-weight: 500;
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-tight);
  transition: color var(--dur-fast) var(--ease);
}

.index-entry__context {
  display: block;
  margin-top: var(--space-1);
  font-size: var(--text-small);
  color: var(--ink-secondary);
  max-width: 36rem;
}

.index-entry__meta {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-4);
  margin-top: var(--space-1);
}

@media (min-width: 720px) {
  .index-entry__meta {
    grid-column: auto;
    flex-direction: column;
    align-items: flex-end;
    gap: var(--space-1);
    margin-top: 0;
    text-align: right;
  }

  /* Home compact rows (no thumb): keep type + year on one line */
  .index-entry:not(.index-entry--thumb) .index-entry__meta {
    flex-direction: row;
    align-items: baseline;
    flex-wrap: nowrap;
    gap: var(--space-3);
    white-space: nowrap;
  }
}

.index-entry__area {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 500;
  line-height: var(--leading-heading);
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-muted);
}

.index-entry__year {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  color: var(--ink-secondary);
}

.index-entry__link:focus-visible .index-entry__title {
  color: var(--accent);
}

.index-entry__link:focus-visible .index-entry__num {
  color: var(--accent);
}

/* Work page: text block on top, full-width image below */
.index-entry--thumb .index-entry__link {
  align-items: baseline; /* title ↔ type on one baseline */
}

.index-entry--thumb .index-entry__num {
  padding-top: 0;
}

.index-entry--thumb .index-entry__meta {
  margin-top: 0;
  align-self: baseline;
}

.index-entry__thumb {
  display: block;
  /* Align with title/description — skip the index number column */
  grid-column: 2 / -1;
  width: 100%;
  aspect-ratio: 16 / 9;
  margin-top: var(--space-3);
  object-fit: cover;
  object-position: center 40%;
  align-self: start;
  background: var(--surface);
  outline: 1px solid rgba(0, 0, 0, 0.1);
  outline-offset: -1px;
  transition: transform var(--dur-enter) var(--ease-out);
}

html.dark .index-entry__thumb {
  outline-color: rgba(255, 255, 255, 0.1);
}

.index-list:has(.index-entry--thumb) {
  gap: var(--space-6);
}

/* Cursor-following thumbnail — home page list previews only */
.cursor-thumb {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 80;
  width: min(280px, 42vw);
  aspect-ratio: 16 / 10;
  pointer-events: none;
  opacity: 0;
  visibility: hidden;
  overflow: hidden;
  background: var(--surface);
  outline: 1px solid rgba(0, 0, 0, 0.12);
  outline-offset: -1px;
  box-shadow: 0 18px 40px rgba(33, 30, 25, 0.18);
  transform: translate3d(-9999px, -9999px, 0);
  transition: opacity var(--dur-fast) var(--ease), visibility var(--dur-fast) var(--ease);
  will-change: transform;
}

html.dark .cursor-thumb {
  outline-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
}

.cursor-thumb.is-visible {
  opacity: 1;
  visibility: visible;
}

.cursor-thumb img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 40%;
}

/* Home index lists: shared size + dashed row dividers */
#home-project-list,
#home-lab-list,
#home-articles {
  gap: 0;
}

#home-project-list > li,
#home-lab-list > li,
#home-articles > li {
  padding-block: var(--space-3);
  border-bottom: var(--hairline-dashed);
}

#home-project-list > li:last-child,
#home-lab-list > li:last-child,
#home-articles > li:last-child {
  border-bottom: none;
}

#home-project-list .index-entry__title,
#home-lab-list .row-list__title,
#home-articles .row-list__title {
  font-size: var(--text-body);
  line-height: var(--leading-body);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
}

#home-project-list .index-entry__link,
#home-lab-list .row-list__row,
#home-articles .row-list__row {
  padding-top: 0;
  padding-bottom: 0;
  gap: 0 var(--space-4);
  align-items: baseline;
}

#home-project-list .index-entry__link {
  grid-template-columns: minmax(0, 1fr);
}

#home-project-list .index-entry__meta {
  grid-column: 1;
  margin-top: 0;
}

@media (min-width: 720px) {
  #home-project-list .index-entry__link {
    grid-template-columns: minmax(0, 1fr) auto;
  }

  #home-project-list .index-entry__meta {
    grid-column: auto;
  }
}

/* ——— 08 Compact lists (lab, notes, experience) ——— */
.row-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.row-list__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-1) var(--space-4);
  padding: var(--space-2) 0;
}

@media (min-width: 720px) {
  .row-list__row {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: baseline;
  }
}

a.row-list__row {
  color: inherit;
}

.row-list__title {
  display: block;
  font-size: var(--text-body);
  font-weight: 500;
  letter-spacing: var(--tracking-tight);
  transition: color var(--dur-fast) var(--ease);
}

a.row-list__row:focus-visible .row-list__title {
  color: var(--accent);
}

.row-list__desc {
  font-size: var(--text-small);
  color: var(--ink-secondary);
  max-width: 34rem;
}

.row-list__aside {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-4);
}

@media (min-width: 720px) {
  .row-list__aside {
    flex-direction: column;
    align-items: flex-end;
    text-align: right;
    grid-row: span 2;
  }

  /* Compact rows without a description: type + year stay on one line */
  .row-list__row:not(:has(.row-list__desc)) .row-list__aside {
    flex-direction: row;
    align-items: baseline;
    flex-wrap: nowrap;
    gap: var(--space-3);
    grid-row: auto;
    white-space: nowrap;
  }
}

/* Experience rows */
.experience-rows {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.experience-rows li {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: var(--space-2) var(--space-3);
  padding-block: var(--space-3);
  border-bottom: var(--hairline-dashed);
}

.experience-rows li:last-child {
  border-bottom: none;
}

.experience-rows__role {
  font-weight: 500;
  font-size: var(--text-body);
  line-height: var(--leading-body);
  letter-spacing: var(--tracking-tight);
}

.experience-rows__co {
  font-size: var(--text-small);
  color: var(--ink-secondary);
}

.experience-rows__when {
  margin-left: auto;
  text-align: right;
  white-space: nowrap;
}

/* ——— 09 Contact + footer ——— */
.contact-panel {
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: var(--space-5);
}

.contact-panel > .prose {
  max-width: var(--width-reading);
}

/* Links + seal share one row so the wheel lines up with the list */
.contact-panel__row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-5) var(--space-7);
}

.contact-panel__row .contact-links {
  margin-top: 0;
}

.orbit-seal {
  position: relative;
  display: grid;
  place-items: center;
  width: 10.4rem; /* was 8rem; +30% */
  height: 10.4rem;
  flex: 0 0 auto;
  margin-inline-start: auto;
  color: var(--ink-muted);
  pointer-events: none;
  user-select: none;
}

.orbit-seal__spin {
  position: absolute;
  inset: 0;
  animation: orbit-seal-spin 24s linear infinite;
}

.orbit-seal__char {
  position: absolute;
  left: 50%;
  top: 50%;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  text-transform: uppercase;
  transform: rotate(calc(360deg / var(--n) * var(--i))) translateY(-3.77rem);
  transform-origin: 0 0;
}

.orbit-seal__dot {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 50%;
  background: var(--accent);
  z-index: 1;
}

@keyframes orbit-seal-spin {
  to {
    transform: rotate(360deg);
  }
}

.contact-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-1);
  margin-top: var(--space-5);
}

.contact-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.3em;
  width: max-content;
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-secondary);
  padding: 0.3rem 0.5rem;
  margin-inline: -0.5rem; /* align label text with prose above */
  border-radius: 0.3rem;
  background-color: transparent;
  transition:
    color var(--dur) var(--ease-out),
    background-color var(--dur) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.contact-links a:active {
  transform: scale(0.96);
}

.contact-links a::after {
  content: "↗";
  display: inline-block;
  font-size: 0.85em;
  line-height: 1;
  opacity: 0.7;
  transition:
    opacity var(--dur-fast) var(--ease-out),
    color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.contact-links a:focus-visible {
  color: var(--accent);
  background-color: var(--accent-soft);
}

.contact-links a:focus-visible::after {
  opacity: 1;
  color: var(--accent);
  transform: translate(0.18em, -0.18em);
}

.site-footer {
  margin-inline: calc(var(--gutter) * -1);
  padding: var(--space-5) var(--gutter);
  border-top: var(--hairline-dashed);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: var(--space-2) var(--space-5);
}

.site-footer p {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.04em;
  color: var(--ink-muted);
  max-width: none;
}

.site-footer__end {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: flex-end;
  gap: var(--space-2) var(--space-3);
  margin-left: auto;
}

.site-footer__end > p + p::before {
  content: "·";
  margin-right: var(--space-3);
  color: var(--ink-muted);
}

.site-footer__visits {
  white-space: nowrap;
  font-variant-numeric: tabular-nums;
}

/* ——— 10 Work page + GitHub activity ——— */
.page-title-block {
  padding: var(--space-8) 0 var(--space-6);
}

.page-title-block .label {
  display: block;
  margin-bottom: var(--space-4);
}

.page-title {
  font-size: var(--text-title);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: var(--leading-tight);
  text-wrap: balance;
}

.page-title-block__lede {
  margin-top: var(--space-3);
  color: var(--ink-secondary);
  text-wrap: pretty;
}

/* GitHub contribution calendar — Mohit-style layout, site accent scale */
.github-activity-embed.gh-cal {
  --gh-l0: #e8e2d6;
  --gh-l1: #ffd0bf;
  --gh-l2: #ff9a75;
  --gh-l3: #ff6a33;
  --gh-l4: var(--accent);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  width: 100%;
  overflow: visible;
  background: transparent;
  border: 0;
  padding: 0;
  font-family: var(--font-mono);
  color: var(--ink-muted);
}

html.dark .github-activity-embed.gh-cal {
  --gh-l0: #2a261c;
  --gh-l1: #5c2e1a;
  --gh-l2: #9c3f14;
  --gh-l3: #d94a12;
  --gh-l4: var(--accent);
}

.gh-cal__months {
  display: flex;
  width: 100%;
  margin-bottom: 0.15rem;
}

.gh-cal__month {
  font-size: 0.625rem;
  line-height: 1.2;
  letter-spacing: 0.02em;
  color: var(--ink-muted);
  overflow: hidden;
  white-space: nowrap;
}

.gh-cal__grid {
  width: 100%;
  aspect-ratio: 53 / 7;
}

.gh-cal__svg {
  display: block;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.gh-cal__cell {
  stroke: var(--rule);
  stroke-width: 0.04;
}

.gh-cal__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: 0.15rem;
  font-size: 0.625rem;
  line-height: 1.3;
  color: var(--ink-muted);
}

.gh-cal__count {
  margin: 0;
  color: inherit;
}

.gh-cal__count a {
  color: var(--ink-secondary);
  text-decoration-color: var(--rule-strong);
}

.gh-cal__legend {
  display: none;
  align-items: center;
  gap: 0.3rem;
  flex-shrink: 0;
}

@media (min-width: 640px) {
  .gh-cal__legend {
    display: flex;
  }
}

.gh-cal__legend-cells {
  display: flex;
  align-items: center;
  gap: 2px;
  margin: 0 0.1rem;
}

.gh-cal__legend-cell {
  width: 0.65rem;
  height: 0.65rem;
  border-radius: 0.15rem;
  border: 1px solid var(--rule);
}

.gh-cal--loading .gh-cal__grid {
  opacity: 0.45;
}

/* ——— 11 Case study overlay (bottom sheet) ——— */
.work-detail {
  --work-sheet-peek: 2.25rem;
  --work-sheet-dur: 420ms;
  position: fixed;
  inset: 0;
  z-index: 200;
  visibility: hidden;
  pointer-events: none;
  /* Keep sheet visible through the exit slide */
  transition: visibility 0s linear var(--work-sheet-dur);
}

.work-detail[aria-hidden="false"] {
  visibility: visible;
  pointer-events: auto;
  transition: visibility 0s linear 0s;
}

.work-detail-overlay {
  position: absolute;
  inset: 0;
  background: rgba(24, 20, 14, 0.45);
  opacity: 0;
  transition: opacity var(--work-sheet-dur) var(--ease-out);
}

.work-detail[aria-hidden="false"] .work-detail-overlay {
  opacity: 1;
}

.work-detail-content {
  position: absolute;
  top: var(--work-sheet-peek);
  right: 0;
  bottom: 0;
  left: 0;
  width: 100%;
  background: var(--paper);
  border-top: var(--hairline);
  overflow-y: auto;
  overscroll-behavior: contain;
  transform: translateY(100%);
  opacity: 0;
  transition:
    transform var(--work-sheet-dur) var(--ease-drawer),
    opacity calc(var(--work-sheet-dur) * 0.75) var(--ease-out);
}

.work-detail[aria-hidden="false"] .work-detail-content {
  transform: translateY(0);
  opacity: 1;
}

.work-detail-close {
  position: sticky;
  top: var(--space-4);
  float: right;
  z-index: 10;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  margin: var(--space-4) var(--space-4) calc(-1 * (2.5rem + var(--space-4))) 0;
  border: var(--hairline-strong);
  border-radius: 50%;
  background: var(--paper);
  color: var(--ink-secondary);
  cursor: pointer;
  transition:
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.work-detail-close:active {
  transform: scale(0.96);
}

.work-detail-close:focus-visible {
  color: var(--ink);
  border-color: var(--ink-muted);
}

.work-detail-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin-inline: auto;
  padding: var(--space-7) var(--gutter) var(--space-8);
  max-width: 74rem;
}

@media (min-width: 1100px) {
  .work-detail-inner {
    --work-toc-col: 10rem;
    --work-rule-inset: var(--space-6); /* space from dashed rule to content */
    /* TOC | content | matching right spacer — keeps content centered */
    grid-template-columns:
      var(--work-toc-col)
      minmax(0, 1fr)
      var(--work-toc-col);
    column-gap: calc(var(--work-rule-inset) * 2);
    padding-inline: var(--gutter);
  }

  /* Full-height vertical rules on both sides of the content column */
  .work-detail-inner::before,
  .work-detail-inner::after {
    content: "";
    position: absolute;
    top: 0;
    bottom: 0;
    border-left: var(--hairline-dashed);
    pointer-events: none;
  }

  .work-detail-inner::before {
    left: calc(var(--gutter) + var(--work-toc-col) + var(--work-rule-inset));
  }

  .work-detail-inner::after {
    right: calc(var(--gutter) + var(--work-toc-col) + var(--work-rule-inset));
  }
}

.work-detail-toc {
  display: none;
}

@media (min-width: 1100px) {
  .work-detail-toc {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
    grid-column: 1;
    grid-row: 1 / span 99;
    position: sticky;
    top: var(--space-7);
    align-self: start;
    z-index: 2;
    /* Keep TOC readable when content rules scroll past */
    background: var(--paper);
  }
}

.work-detail-toc__link {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-muted);
  transition: color var(--dur-fast) var(--ease);
}

.work-detail-toc__link:focus-visible {
  color: var(--ink);
}

.work-detail-toc__link--active {
  color: var(--accent);
}

.work-detail-header,
.work-detail-section,
.work-detail-figure,
.work-detail-navigation {
  grid-column: 1 / -1;
}

@media (min-width: 1100px) {
  .work-detail-header,
  .work-detail-section,
  .work-detail-figure,
  .work-detail-navigation {
    grid-column: 2;
  }
}

.work-detail-header {
  position: relative;
  padding-bottom: var(--space-6);
  margin-bottom: var(--space-6);
}

/* Dashed rule under header — content column only (not under TOC) */
.work-detail-header::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: calc(var(--gutter) * -1);
  right: calc(var(--gutter) * -1);
  border-bottom: var(--hairline-dashed);
  pointer-events: none;
}

@media (min-width: 1100px) {
  .work-detail-header::after {
    /* Reach into equal gaps on both sides of the content column */
    left: calc(var(--work-rule-inset) * -1);
    right: calc(var(--work-rule-inset) * -1);
  }
}

.work-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  margin-bottom: var(--space-4);
  /* Keep clear of the fixed close button */
  padding-right: 3.5rem;
}

.work-detail-tag {
  font-family: var(--font-mono);
  font-size: var(--text-label);
  font-weight: 500;
  letter-spacing: var(--tracking-label);
  text-transform: uppercase;
  color: var(--ink-muted);
}

.work-detail-title {
  font-size: var(--text-title);
  font-weight: 500;
  letter-spacing: -0.025em;
  line-height: var(--leading-tight);
  margin-bottom: var(--space-3);
  text-wrap: balance;
}

.work-detail-description {
  color: var(--ink-secondary);
  max-width: var(--width-reading);
  text-wrap: pretty;
}

.work-detail-section {
  /* Use block-only padding so wide-layout inset from the rule isn’t wiped out */
  padding-block: var(--space-5);
}

.work-detail-section-title {
  display: flex;
  align-items: baseline;
  gap: var(--space-3);
  font-size: var(--text-heading);
  font-weight: 500;
  margin-bottom: var(--space-4);
}

.work-detail-section-title .section-num {
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  font-weight: 400;
  color: var(--accent);
  letter-spacing: 0;
}

.work-detail-section-content {
  max-width: var(--width-reading);
  color: var(--ink);
}

.work-detail-section-content p + p,
.work-detail-section-content p + ul,
.work-detail-section-content ul + p {
  margin-top: var(--space-4);
}

.work-detail-section-content ul {
  padding-left: 1.2em;
}

.work-detail-section-content li + li {
  margin-top: var(--space-2);
}

.work-detail-figure {
  margin: var(--space-4) 0 var(--space-6);
}

.work-detail-figure img {
  width: 100%;
  background: var(--surface);
  outline: 1px solid rgba(0, 0, 0, 0.1);
  outline-offset: -1px;
}

html.dark .work-detail-figure img {
  outline-color: rgba(255, 255, 255, 0.1);
}

.work-detail-figure figcaption {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.05em;
  color: var(--ink-muted);
}

.work-detail-navigation {
  position: relative;
  margin-top: var(--space-6);
  padding-top: var(--space-5);
}

/* Dashed rule above navigation — content column only (not under TOC) */
.work-detail-navigation::before {
  content: "";
  position: absolute;
  top: 0;
  left: calc(var(--gutter) * -1);
  right: calc(var(--gutter) * -1);
  border-top: var(--hairline-dashed);
  pointer-events: none;
}

@media (min-width: 1100px) {
  .work-detail-navigation::before {
    left: calc(var(--work-rule-inset) * -1);
    right: calc(var(--work-rule-inset) * -1);
  }
}

.work-detail-next {
  background: none;
  border: none;
  padding: 0;
  font: inherit;
  font-family: var(--font-mono);
  font-size: var(--text-meta);
  color: var(--ink-secondary);
  border-bottom: 1px solid var(--rule-strong);
  padding-bottom: 1px;
  cursor: pointer;
  transition:
    color var(--dur-fast) var(--ease-out),
    border-color var(--dur-fast) var(--ease-out),
    transform var(--dur-fast) var(--ease-out);
}

.work-detail-next:active {
  transform: scale(0.96);
}

.work-detail-next:focus-visible {
  color: var(--accent);
  border-color: var(--accent);
}

/* ——— 12 About page ——— */
.about-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--space-6);
}

@media (min-width: 820px) {
  .about-intro {
    grid-template-columns: 16rem minmax(0, 1fr);
    align-items: start;
  }
}

.about-photo-wrap {
  max-width: 16rem;
}

.about-photo {
  width: 100%;
  background: var(--surface);
  outline: 1px solid rgba(0, 0, 0, 0.1);
  outline-offset: -1px;
}

html.dark .about-photo {
  outline-color: rgba(255, 255, 255, 0.1);
}

.about-photo-note {
  margin-top: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-label);
  letter-spacing: 0.04em;
  line-height: 1.6;
  color: var(--ink-muted);
  text-wrap: pretty;
}

/* CV timeline (about page) */
.cv-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

.cv-entry {
  padding: 0;
}

.cv-entry__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-1) var(--space-4);
}

.cv-entry__role {
  font-size: var(--text-body);
  font-weight: 500;
}

.cv-entry__co {
  margin-top: var(--space-1);
}

.cv-entry__body {
  margin-top: var(--space-3);
  font-size: var(--text-small);
  color: var(--ink-secondary);
}

.cv-entry__body p {
  max-width: 38rem;
}

/* ——— 13 Utilities, focus, reduced motion ——— */
.skip-link {
  position: absolute;
  left: var(--space-4);
  top: var(--space-2);
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  background: var(--ink);
  color: var(--paper);
  font-size: var(--text-small);
  transform: translateY(-200%);
  transition: transform var(--dur-fast) var(--ease-out);
}

.skip-link:focus {
  transform: translateY(0);
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Scroll reveal — opacity + small lift; staggered per chunk; reduced motion off */
.reveal {
  opacity: 0;
  transform: translateY(10px);
  transition:
    opacity var(--dur-enter) var(--ease-out),
    transform var(--dur-enter) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-revealed {
  opacity: 1;
  transform: none;
}

/* Hover motion only on fine pointers — avoids sticky tap states on touch */
@media (hover: hover) and (pointer: fine) {
  .prose a:hover,
  .link:hover {
    color: var(--accent);
    text-decoration-color: var(--accent);
  }

  .site-wordmark:hover {
    color: var(--accent);
  }

  .site-nav__link:hover {
    color: var(--ink);
  }

  .site-nav__link:hover::after {
    transform: scaleX(1);
  }

  .site-nav__link--external:hover::before {
    color: var(--ink);
    transform: translate(0.12em, -0.12em);
  }

  .theme-toggle:hover {
    color: var(--ink);
    border-color: var(--rule-strong);
  }

  .doc-section__note a:hover {
    color: var(--accent);
    background-color: var(--accent-soft);
  }

  .doc-section__note a:hover::after {
    transform: translateX(0.28em);
  }

  .index-entry__link:hover .index-entry__title,
  .index-entry__link:hover .index-entry__num {
    color: var(--accent);
  }

  .index-entry__link:hover .index-entry__thumb {
    transform: scale(1.015);
  }

  a.row-list__row:hover .row-list__title {
    color: var(--accent);
  }

  .contact-links a:hover {
    color: var(--accent);
    background-color: var(--accent-soft);
  }

  .contact-links a:hover::after {
    opacity: 1;
    color: var(--accent);
    transform: translate(0.18em, -0.18em);
  }

  .work-detail-close:hover {
    color: var(--ink);
    border-color: var(--ink-muted);
  }

  .work-detail-toc__link:hover {
    color: var(--ink);
  }

  .work-detail-next:hover {
    color: var(--accent);
    border-color: var(--accent);
  }
}

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

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

  .site-header.is-scrolled {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
  }

  /* Drop movement; keep color transitions that aid comprehension */
  .constellation,
  .constellation__tile,
  .orbit-seal__spin,
  .masthead__copy > * {
    animation: none !important;
  }

  .site-nav__link::after,
  .site-nav__link--external::before,
  .doc-section__note a::after,
  .contact-links a::after,
  .skip-link,
  .reveal,
  .work-detail,
  .work-detail-overlay,
  .work-detail-content,
  .theme-toggle,
  .theme-icon,
  .work-detail-close,
  .index-entry__thumb,
  .cursor-thumb {
    transition-property: color, background-color, border-color, text-decoration-color, opacity !important;
  }

  .site-nav__link::after,
  .site-nav__link--external::before,
  .doc-section__note a::after,
  .contact-links a::after,
  .skip-link,
  .work-detail-content,
  .theme-toggle:active,
  .doc-section__note a:active,
  .contact-links a:active,
  .work-detail-next:active,
  .work-detail-close:active,
  .theme-icon,
  .index-entry__thumb {
    transform: none !important;
    filter: none !important;
  }
}