styles.css

/* ============================================
   CSS TABLE OF CONTENTS
   ============================================
   1.  Reset & CSS Custom Properties
   2.  Base & Typography
   3.  Layout
   4.  Navigation
   5.  Contact Bar
   6.  Sections & Content Items
   7.  Home Section
   8.  Gallery
   9.  Photo Carousel
   10. Lightbox / Image Viewer
   11. Theme Toggle & Dark Mode
   12. Loading Screen
   13. Cursor Follower
   14. Responsive - Tablet (max-width: 1024px)
   15. Responsive - Mobile (max-width: 768px)
   16. Responsive - Small Mobile (max-width: 480px)
   17. Responsive - Touch Devices
   ============================================ */


/* ============================================
   1. RESET & CSS CUSTOM PROPERTIES
   ============================================ */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --color-cream: #ffead3;
  --color-ink: #121212;
  --font-sans: 'InterVariable';
  --badge-padding: 2px 6px;
  --badge-radius: 2px;
  --bg-light: var(--color-cream);
  --text-dark: var(--color-ink);
  --text-muted: rgba(18, 18, 18, 0.6);
  --item-secondary: var(--text-muted);
  --text-muted-70: var(--text-muted);
  --spacing: clamp(16px, 3vw, 40px);
  --line-color: rgba(18, 18, 18, 0.2);
  --font-size-body: 1rem;
  --font-size-small: 0.85rem;
  --font-size-badge: 0.8rem;
  --font-size-large: 1.5rem;
  --font-size-menu: 2rem;
}

@font-face {
  font-family: 'InterVariable';
  font-style: normal;
  font-weight: 300 500;
  font-display: swap;
  src: url('https://rsms.me/inter/font-files/InterVariable.woff2?v=4.1') format('woff2');
}

@font-face {
  font-family: 'InterVariable';
  font-style: italic;
  font-weight: 300 500;
  font-display: swap;
  src: url('https://rsms.me/inter/font-files/InterVariable-Italic.woff2?v=4.1') format('woff2');
}


/* ============================================
   2. BASE & TYPOGRAPHY
   ============================================ */
::selection {
  background-color: var(--text-dark);
  color: var(--bg-light);
}

::-moz-selection {
  background-color: var(--text-dark);
  color: var(--bg-light);
}

html {
  min-height: 100%;
  min-height: 100svh;
  scroll-behavior: smooth;
  touch-action: pan-y pinch-zoom;
  scrollbar-width: thin;
  scrollbar-color: var(--text-dark) transparent;
  background-color: var(--bg-light);
  background-image: none;
  color-scheme: light;
}

body {
  min-height: 100%;
  min-height: 100svh;
  /* Sideways lock lives here (not on html): it hides off-canvas content
     like the translated phone menu, while leaving position:sticky working.
     Wide content (e.g. cursor follower) stays clamped in script instead. */
  overflow-x: clip;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  touch-action: pan-y pinch-zoom;
  scrollbar-width: thin;
  scrollbar-color: var(--text-dark) transparent;
  background-color: var(--bg-light);
  background-image: none;
}

html.loading-active,
body.loading-active {
  overflow: hidden;
  height: 100vh;
  height: 100dvh;
  overscroll-behavior: none;
  touch-action: pinch-zoom;
}

body.lightbox-open {
  position: fixed;
  width: 100%;
  overflow: hidden;
}

html::-webkit-scrollbar,
body::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

html::-webkit-scrollbar-track,
body::-webkit-scrollbar-track {
  background: transparent;
}

html::-webkit-scrollbar-thumb,
body::-webkit-scrollbar-thumb {
  background-color: var(--text-dark);
  border-radius: 999px;
}

html::-webkit-scrollbar-thumb:hover,
body::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-dark);
}

body {
  font-family: var(--font-sans);
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: subpixel-antialiased;
  -moz-osx-font-smoothing: auto;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--text-dark);
  text-decoration: none;
}

a,
button,
[role="button"],
.gallery-item {
  -webkit-tap-highlight-color: transparent;
}

a:focus:not(:focus-visible),
button:focus:not(:focus-visible),
[role="button"]:focus:not(:focus-visible),
.gallery-item:focus:not(:focus-visible) {
  outline: none;
}


/* ============================================
   3. LAYOUT
   ============================================ */
.main-wrapper {
  min-height: 100vh;
  min-height: 100svh;
  touch-action: pan-y pinch-zoom;
  transform: translateY(100vh);
  transform: translateY(100svh);
  transition: transform 0.8s cubic-bezier(0.65, 0, 0.35, 1);
}

.main-wrapper.visible {
  transform: none;
}

.layout {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  padding: var(--spacing);
  gap: var(--spacing);
  touch-action: pan-y pinch-zoom;
}

.sidebar {
  grid-column: 1 / 2;
  position: fixed;
  top: var(--spacing);
  left: var(--spacing);
  width: calc((100vw - (var(--spacing) * 5)) / 4);
  z-index: 90;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: opacity 0.3s ease-in-out;
}

body.is-resizing .sidebar {
  transition: none;
}

.content {
  grid-column: 2 / 5;
  overflow: visible;
  touch-action: pan-y pinch-zoom;
}


/* ============================================
   4. NAVIGATION
   ============================================ */
.nav-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.nav-item {
  font-family: inherit;
  font-size: var(--font-size-small);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  transition: color 0.2s ease;
  background: none;
  border: none;
  text-align: left;
  padding: 0;
  width: fit-content;
  white-space: nowrap;
  text-decoration: none;
}

.sidebar,
.mobile-top-bar,
.hamburger {
  font-family: var(--font-sans);
}

@media (min-width: 769px) {
  .sidebar {
    font-family: var(--font-sans);
  }

  .sidebar .nav-item {
    font-size: var(--font-size-body);
    font-weight: 400;
    letter-spacing: 0;
    line-height: 1;
    text-transform: none;
  }

  .sidebar .nav-item.active {
    font-weight: 500;
  }
}

.nav-item:hover {
  color: var(--text-dark);
}

.nav-item.active {
  color: var(--text-dark);
}

.nav-item-profile {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  margin-bottom: 4px;
}

.nav-item-profile .profile-photo {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: none;
  outline: none;
}

.mobile-top-bar {
  display: none;
}

.hamburger {
  display: none;
  width: 28px;
  height: 28px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  flex-shrink: 0;
}

.hamburger-line {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--text-dark);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.hamburger.open .hamburger-line:first-child {
  transform: translateY(4px) rotate(45deg);
}

.hamburger.open .hamburger-line:last-child {
  transform: translateY(-4px) rotate(-45deg);
}


/* ============================================
   5. CONTACT BAR
   ============================================ */
.contact-bar {
  position: fixed;
  bottom: 0;
  left: 0;
  width: calc((100vw - (var(--spacing) * 5)) / 4 + (var(--spacing) * 2));
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 20px;
  padding: 24px var(--spacing) var(--spacing);
  background-color: var(--bg-light);
  z-index: 100;
  font-family: var(--font-sans);
}

.profile-photo {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background-color: var(--text-muted);
  overflow: hidden;
  flex-shrink: 0;
}

.profile-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.contact-links {
  display: flex;
  align-items: center;
  gap: 20px;
  flex-wrap: nowrap;
  white-space: nowrap;
  margin-left: 0;
}

.contact-bar a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s ease;
}

.contact-bar a:hover {
  color: var(--text-dark);
  text-decoration: none;
}

.contact-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  position: relative;
  width: 18px;
  height: 18px;
  color: var(--text-muted);
}

.contact-tooltip {
  position: absolute;
  left: 50%;
  bottom: calc(100% + 8px);
  z-index: 20;
  display: block;
  padding: var(--badge-padding);
  background: var(--bg-light);
  border: 1px solid var(--text-muted);
  border-radius: var(--badge-radius);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: var(--font-size-badge);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transform: translate(-50%, 3px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.16s ease, transform 0.16s ease;
  white-space: nowrap;
}

.contact-icon:hover .contact-tooltip,
.contact-icon:focus-visible .contact-tooltip {
  opacity: 1;
  transform: translate(-50%, 0);
}

.contact-icon svg {
  width: 75%;
  height: 75%;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* Wide envelope: fills its box edge-to-edge like the other marks fill theirs */
.contact-icon[aria-label="Email"] svg {
  flex: none;
  width: 16.5px;
  height: 13.5px;
}

.contact-icon svg.filled-icon {
  fill: currentColor;
  stroke: none;
}

.mobile-menu-contact {
  display: none;
}

/* ============================================
   6. SECTIONS & CONTENT ITEMS
   ============================================ */
section {
  position: relative;
  display: none;
  flex-direction: column;
  min-height: calc(100vh - (var(--spacing) * 2));
  min-height: calc(100svh - (var(--spacing) * 2));
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
  overflow: visible;
  padding-bottom: var(--spacing);
  touch-action: pan-y pinch-zoom;
}

section.active {
  display: flex;
  opacity: 1;
  visibility: visible;
}

section.filter-compact {
  min-height: auto;
  padding-bottom: 0;
}

.section-description {
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  line-height: 1.3;
  color: var(--text-dark);
  margin-bottom: clamp(20px, 3vw, 32px);
}

.section-filter {
  /* Sticky at its own natural offset, so the bar never travels: it sits
     exactly where it loads while content slides beneath it. */
  position: sticky;
  top: var(--spacing);
  z-index: 50;
  display: flex;
  justify-content: flex-end;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
  margin-bottom: 0;
  padding: 8px 0 16px;
  background-color: var(--bg-light);
  font-family: var(--font-sans);
}

/* Mask: paints everything above the bar in page background, so scrolled
   content never shows past it (desktop only; mobile keeps its top gap). */
.section-filter::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 100%;
  height: 100vh;
  background-color: var(--bg-light);
}

.section-filter-label {
  font-family: var(--font-sans);
  font-size: var(--font-size-badge);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  line-height: 1.2;
  color: var(--text-muted);
  margin-right: 8px;
  user-select: none;
}

.section-filter-button {
  border: none;
  border-left: 1px solid var(--text-muted);
  border-radius: 0;
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-family: inherit;
  font-size: var(--font-size-badge);
  letter-spacing: 0.1em;
  line-height: 1.2;
  padding: 3px 7px;
  text-transform: uppercase;
  transition: background-color 0.16s ease, color 0.16s ease;
}

.section-filter-button:first-of-type {
  border-left: none;
}

/* Row boxes built by packFilterRows(): each hugs exactly one row of buttons,
   so wrapped rows never stretch a box full-width. */
.section-filter-row {
  position: relative;
  display: flex;
  background: transparent;
  border: 1px solid var(--text-muted);
  max-width: 100%;
}

.section-filter-row + .section-filter-row {
  border-top: none;
}

.section-filter-row + .section-filter-row::before {
  content: "";
  position: absolute;
  top: -1px;
  left: -1px;
  width: var(--exposed-top-line-width, 0px);
  height: 1px;
  background-color: var(--text-muted);
  pointer-events: none;
}

.section-filter-button:hover {
  color: var(--text-dark);
}

.section-filter-button.active,
.section-filter-button.active:hover {
  background-color: var(--text-dark);
  color: var(--bg-light) !important;
}

/* Keep the selected fill from covering the button's translucent border. */
.section-filter-button.active {
  background-clip: padding-box;
}

.items {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.item {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: clamp(12px, 2vw, 24px);
  align-items: start;
  padding-top: 12px;
}

.item[hidden] {
  display: none !important;
}

.item.filter-first-visible {
  margin-top: 0 !important;
}

.item-meta {
  font-family: var(--font-sans);
  font-size: var(--font-size-small);
  letter-spacing: 0.1em;
  color: var(--text-muted);
  text-transform: uppercase;
  padding-top: 12px;
  border-top: 0.5px solid var(--line-color);
}

.item-meta:empty {
  display: block;
  border-top: none;
}

.item:has(.item-meta:not(:empty)) + .item:has(.item-meta:not(:empty)) {
  margin-top: 0;
}

.items > .item:has(.item-meta:not(:empty)):not(:first-child) {
  margin-top: 24px;
}

.item-content {
  grid-column: 2;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 4px;
  padding-top: 12px;
  border-top: 0.5px solid var(--line-color);
}

.items > .item:has(.item-meta:empty):first-child .item-content,
.items > .item:has(.item-meta:empty).filter-first-visible .item-content {
  border-top: none;
  padding-top: 12px;
}

#experience .items > .item:first-child .item-content {
  border-top: none;
  padding-top: 0;
}

.item-content > * {
  flex-basis: 100%;
}

.item-tags {
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted-70);
}

.item-title {
  font-size: var(--font-size-body);
  font-weight: 500;
  line-height: 1.25;
}

.item-subtitle {
  font-size: var(--font-size-body);
  line-height: 1.35;
  color: var(--item-secondary);
}

.item-content a {
  color: inherit;
  text-decoration: none;
}

.date-text {
  font-family: var(--font-sans);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.article-badge {
  font-family: var(--font-sans);
  background: var(--bg-light);
  color: var(--text-muted);
  border: 1px solid var(--text-muted);
  padding: var(--badge-padding);
  border-radius: var(--badge-radius);
  font-size: var(--font-size-badge);
  letter-spacing: 0.1em;
  line-height: 1.2;
}

.meta-link {
  color: inherit;
}

#experience .item-subtitle,
#experience .experience-duration,
#opensource .item-subtitle {
  font-family: var(--font-sans);
}

#experience .item-content,
#opensource .item-content {
  display: flex;
  flex-direction: row;
  flex-wrap: nowrap;
  align-items: flex-start;
  gap: 14px;
}

#experience .item-content > *,
#opensource .item-content > * {
  flex-basis: auto;
}

.experience-logo-link {
  position: relative;
  display: grid;
  place-items: center;
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  overflow: hidden;
  border-radius: 8px;
  corner-shape: squircle;
  background-color: var(--line-color);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: var(--font-size-small);
  text-decoration: none;
}

.experience-logo-link::before {
  content: attr(data-fallback);
  grid-area: 1 / 1;
}

.experience-logo-link.logo-loaded::before {
  content: none;
}

.experience-logo-link.logo-loaded {
  background-color: transparent;
}

.experience-logo {
  position: relative;
  z-index: 1;
  grid-area: 1 / 1;
  width: 48px;
  height: 48px;
  border-radius: 8px;
  corner-shape: squircle;
  -webkit-corner-smoothing: antialiased;
  object-fit: cover;
  display: block;
  border: none;
  opacity: 0;
  transition: opacity 0.24s ease-out;
}

.experience-logo-link.logo-loaded .experience-logo {
  opacity: 1;
}

.experience-details {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

#opensource .item-content {
  position: relative;
  cursor: pointer;
}

#opensource .item-content a.opensource-card-link {
  display: contents;
}

#opensource .opensource-card-link {
  -webkit-tap-highlight-color: transparent;
}

#opensource .opensource-card-link:focus-visible .experience-details {
  outline: 2px solid var(--text-dark);
  outline-offset: 4px;
}

#opensource .item-content,
#opensource .item-content * {
  -webkit-tap-highlight-color: transparent;
}

.source-ref {
  display: inline;
}

.item-description {
  font-size: var(--font-size-body);
  line-height: 1.35;
  color: var(--item-secondary);
  margin-top: 2px;
}

.item-description ul {
  margin: 4px 0 0 0;
  padding-left: 16px;
  list-style-type: disc;
}

.item-description ul li {
  margin-bottom: 4px;
}

.item-description ul li a {
  color: inherit;
}

.item-stats {
  font-family: var(--font-sans);
  font-size: var(--font-size-small);
  letter-spacing: 0.1em;
  line-height: 1.2;
  text-transform: uppercase;
  color: var(--text-muted-70);
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 4px;
}

.item-stats:empty {
  display: none;
}

.stat-badge,
.role-badge {
  font-family: var(--font-sans);
  background: var(--bg-light);
  color: var(--text-muted);
  border: 1px solid var(--text-muted);
  padding: var(--badge-padding);
  border-radius: var(--badge-radius);
  font-size: var(--font-size-badge);
  letter-spacing: 0.1em;
  display: inline-flex;
  align-items: center;
  gap: 3px;
}

.stat-badge svg {
  width: 10px;
  height: 10px;
}

#talks .item-meta {
  font-family: var(--font-sans);
}

#talks .item-tags,
#talks .role-badge {
  font-family: var(--font-sans);
}

#talks .item-subtitle {
  font-family: var(--font-sans);
}

#talks .item-tags {
  font-size: var(--font-size-small);
  margin-top: 2px;
  line-height: 1.2;
}



/* ============================================
   7. HOME SECTION
   ============================================ */
.home-intro {
  --home-name-size: var(--font-size-large);
  --home-role-size: var(--font-size-large);
  font-size: var(--home-name-size);
  font-weight: 500;
  line-height: 1.35;
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 0;
  max-width: min(760px, 100%);
}

.home-intro a {
  color: inherit;
  text-decoration: none;
}

.home-name {
  color: var(--text-dark);
  font-size: var(--home-name-size);
  line-height: 1.35;
  font-weight: inherit;
  margin: 0;
}

.home-roles {
  color: var(--item-secondary);
  font-size: var(--home-role-size);
  font-weight: 400;
  line-height: 1.35;
}

.home-work-link {
  display: none;
  align-self: flex-start;
  margin-top: -2px;
  border: none;
  border-radius: 0;
  background: transparent;
  color: var(--text-dark);
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  line-height: 1.1;
  cursor: pointer;
  padding: 0;
  text-decoration: none;
}

.home-work-link span {
  display: inline-block;
  margin-left: 0.3em;
  font-size: 0.9em;
  transition: transform 0.16s ease;
}

.home-work-link:hover span {
  transform: translateX(3px);
}

/* ============================================
   8. GALLERY
   ============================================ */
#gallery {
  position: relative;
  overflow-x: hidden;
}

#gallery .bento-grid {
  width: 100%;
}

.bento-grid {
  display: flex;
  gap: 6px;
  width: 100%;
}

.gallery-column {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}

.gallery-item {
  position: relative;
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: var(--line-color);
  font: inherit;
  text-align: inherit;
  overflow: hidden;
  border-radius: 0;
  cursor: pointer;
}

@media (hover: hover) and (pointer: fine) {
  .gallery-item:hover .progressive-image-original {
    transform: scale(1.02);
  }

  .gallery-item:hover .progressive-image-preview {
    transform: scale(1.1);
  }
}

.progressive-image-preview,
.progressive-image-original {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.progressive-image-preview {
  opacity: 1;
  filter: blur(12px);
  transform: scale(1.08);
  transition: opacity 40ms ease-out, transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.progressive-image.is-loading-visible:not(.is-sharp):not(.image-load-failed) .progressive-image-preview,
.lightbox.active:not(.is-sharp):not(.image-load-failed) .lightbox-preview {
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}

@keyframes skeleton-pulse {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 0.3; }
}

.progressive-image-original {
  opacity: 0;
  transform: scale(1);
  transition: opacity 40ms ease-out, transform 0.55s cubic-bezier(0.22, 1, 0.36, 1);
}

.progressive-image.is-sharp .progressive-image-preview {
  animation: none;
  opacity: 0;
}

.progressive-image.is-sharp .progressive-image-original {
  opacity: 1;
}


/* ============================================
   9. PHOTO CAROUSEL
   ============================================ */
.photo-carousel-wrapper {
  position: fixed;
  left: 0;
  right: 0;
  height: 200px;
  overflow: hidden;
  z-index: 10;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

.photo-carousel-wrapper.visible {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.3s ease-in-out, visibility 0s;
}

.photo-carousel-wrapper.hidden {
  opacity: 0;
  visibility: hidden;
  transition: opacity 0s, visibility 0s;
}

.photo-carousel {
  width: 100%;
  height: 100%;
  overflow-x: auto;
  overflow-y: hidden;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
  -ms-overflow-style: none;
  touch-action: pan-x pinch-zoom;
  user-select: none;
}

.photo-carousel::-webkit-scrollbar {
  display: none;
}

.photo-carousel-track {
  display: flex;
  width: max-content;
  height: 100%;
}

.photo-carousel-slide {
  position: relative;
  height: 100%;
  width: auto;
  flex-shrink: 0;
  margin-right: 8px;
  overflow: hidden;
  background: var(--line-color);
}


/* ============================================
   10. LIGHTBOX / IMAGE VIEWER
   ============================================ */
.lightbox {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  --lightbox-control-gap: 68px;
  --lightbox-counter-size: var(--font-size-body);
  padding:
    calc(var(--spacing) + var(--lightbox-control-gap) + 38px)
    var(--spacing)
    calc(var(--spacing) + var(--lightbox-control-gap) + var(--lightbox-counter-size));
  background-color: rgba(0, 0, 0, 0.985);
  z-index: 10050;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transition: opacity 0.3s ease-in-out, visibility 0s;
}

.lightbox-story-bar {
  position: absolute;
  top: calc(var(--spacing) + env(safe-area-inset-top, 0px));
  left: var(--spacing);
  right: var(--spacing);
  z-index: 3;
  height: 2px;
  overflow: hidden;
  background-color: rgba(255, 234, 211, 0.18);
}

.lightbox-story-progress {
  width: 100%;
  height: 100%;
  background-color: var(--color-cream);
  transform: scaleX(0);
  transform-origin: left center;
}

.lightbox.active .lightbox-story-progress.is-running {
  animation: story-progress 5s linear forwards;
}

@keyframes story-progress {
  from { transform: scaleX(0); }
  to { transform: scaleX(1); }
}

.lightbox-tap-zone {
  position: absolute;
  top: 0;
  bottom: 0;
  z-index: 2;
  width: 25%;
  border: 0;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.gallery-item:focus-visible {
  outline: 2px solid var(--text-dark);
  outline-offset: -3px;
}

.lightbox button:focus-visible {
  outline: 2px solid var(--color-cream);
  outline-offset: -4px;
}

.lightbox-hint-overlay {
  position: absolute;
  inset: 0;
  z-index: 3;
  display: grid;
  grid-template-columns: 1fr 1.5fr 1fr;
  align-items: center;
  justify-items: center;
  gap: 12px;
  padding: calc(var(--spacing) * 2);
  background: rgba(0, 0, 0, 0.7);
  opacity: 0;
  pointer-events: none;
}

.lightbox-hint-overlay.is-visible {
  animation: lightbox-hint 3s ease-out forwards;
}

.lightbox-hint-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-cream);
  font-family: var(--font-sans);
  font-size: var(--font-size-small);
  line-height: 1.2;
  text-transform: none;
  text-align: center;
}

.lightbox-hint-symbol {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--color-cream);
}

.lightbox-hint-arrow {
  font-size: var(--font-size-large);
  line-height: 1;
  font-weight: 300;
}

.lightbox-hint-arrow-left {
  animation: hint-arrow-left-bob 1.05s ease-in-out infinite;
}

.lightbox-hint-arrow-right {
  animation: hint-arrow-right-bob 1.05s ease-in-out infinite;
}

.lightbox-hint-click {
  position: relative;
}

.lightbox-hint-click::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 234, 211, 0.76);
  animation: hint-click-ring 1.25s ease-in-out infinite;
}

@keyframes hint-arrow-left-bob {
  0%, 100% { transform: translateX(5px); }
  50% { transform: translateX(-7px); }
}

@keyframes hint-arrow-right-bob {
  0%, 100% { transform: translateX(-5px); }
  50% { transform: translateX(7px); }
}

@keyframes hint-click-ring {
  0% { transform: scale(0.75); opacity: 0; }
  36% { opacity: 0.78; }
  100% { transform: scale(1.2); opacity: 0; }
}

.lightbox-tap-prev {
  left: 0;
}

.lightbox-pause-zone {
  left: 25%;
  width: 50%;
  cursor: default;
}

.lightbox-tap-next {
  right: 0;
}

@keyframes lightbox-hint {
  0% {
    opacity: 0;
  }
  16% {
    opacity: 1;
  }
  78% {
    opacity: 1;
  }
  100% {
    opacity: 0;
  }
}

.lightbox-content {
  position: relative;
  max-width: calc(100vw - (var(--spacing) * 2));
  max-height: calc(100vh - (var(--spacing) * 2) - (var(--lightbox-control-gap) * 2) - 38px);
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox-content img {
  max-width: 100%;
  max-height: calc(100vh - (var(--spacing) * 2) - (var(--lightbox-control-gap) * 2) - 38px);
  object-fit: contain;
}

.lightbox-content .lightbox-preview {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 1;
  filter: blur(12px);
  transform: scale(1.08);
  transition: opacity 40ms ease-out;
}

.lightbox-content #lightbox-img {
  position: relative;
  z-index: 1;
  opacity: 0;
  transition: opacity 40ms ease-out;
}

.lightbox.is-sharp .lightbox-preview {
  opacity: 0;
}

.lightbox.is-sharp #lightbox-img {
  opacity: 1;
}

.lightbox-close {
  position: absolute;
  top: calc(var(--spacing) + 14px);
  right: var(--spacing);
  z-index: 4;
  background: none;
  border: none;
  border-radius: 0;
  color: var(--color-cream);
  font-size: var(--font-size-large);
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: color 0.16s ease, border-color 0.16s ease, transform 0.16s ease;
  font-family: var(--font-sans);
}

.lightbox-close:hover {
  border-color: var(--color-cream);
}

.lightbox-counter {
  position: absolute;
  bottom: var(--spacing);
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-cream);
  font-family: var(--font-sans);
  font-size: var(--lightbox-counter-size);
  font-weight: 400;
  line-height: 1.2;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}


/* ============================================
   11. THEME TOGGLE & DARK MODE
   ============================================ */
.theme-toggle {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: none;
  background-color: var(--text-dark);
  cursor: pointer;
  transition: background-color 0.5s ease-in-out, opacity 0.5s ease-in-out;
  margin-top: 8px;
  flex-shrink: 0;
}

.dark-mode {
  --bg-light: var(--color-ink);
  --text-dark: var(--color-cream);
  --text-muted: rgba(255, 234, 211, 0.6);
  --item-secondary: var(--text-muted);
  --text-muted-70: var(--text-muted);
  --line-color: rgba(255, 234, 211, 0.2);
  color-scheme: dark;
}


/* ============================================
   12. LOADING SCREEN
   ============================================ */
.loading-screen {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: var(--bg-light);
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.8s cubic-bezier(0.65, 0, 0.35, 1);
  opacity: 1;
}

.loading-screen.hidden {
  transform: translateY(-100%);
  pointer-events: none;
  visibility: hidden;
}

.loading-content {
  text-align: center;
  color: var(--text-dark);
  font-family: var(--font-sans);
}

.loading-percentage {
  font-family: var(--font-sans);
  font-size: var(--font-size-body);
  font-weight: 400;
  letter-spacing: 0.1em;
  display: inline-block;
  width: 5ch;
  text-align: right;
}


@media (prefers-reduced-motion: reduce) {
  .cursor-follower {
    display: none !important;
  }

  html {
    scroll-behavior: auto;
  }

  .main-wrapper {
    transform: none;
    transition: none !important;
  }

  .loading-screen,
  .sidebar {
    transition: none !important;
  }

  .loading-screen.hidden {
    transform: none;
  }

  .hamburger-line {
    transition: opacity 0.16s ease !important;
  }

  .contact-tooltip {
    transform: translate(-50%, 0);
    transition: opacity 0.16s ease;
  }

  .home-work-link:hover span {
    transform: none;
  }

  .gallery-item:hover .progressive-image-original {
    transform: scale(1);
  }

  .gallery-item:hover .progressive-image-preview {
    transform: scale(1.08);
  }

  .photo-carousel {
    scroll-behavior: auto;
  }

  .gallery-skeleton,
  .progressive-image-preview,
  .lightbox-preview,
  .lightbox-hint-arrow,
  .lightbox-hint-click::after {
    animation: none !important;
  }

  .lightbox-hint-overlay.is-visible {
    animation: none;
    opacity: 1;
  }
}


/* ============================================
   13. CURSOR FOLLOWER
   ============================================ */
.cursor-follower {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background-color: transparent;
  position: fixed;
  pointer-events: none;
  z-index: 99999;
  transform: translate3d(0, 0, 0) translate(-50%, -50%);
  will-change: transform;
  mix-blend-mode: difference;
}

.cursor-follower::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background-color: var(--color-cream);
  transform: scale(1);
  transition: transform 0.3s ease-in-out;
}

.cursor-follower.hovering::before {
  transform: scale(2.5);
}

@media (hover: none) and (pointer: coarse) {
  .cursor-follower {
    display: none !important;
  }
}


/* ============================================
   14. RESPONSIVE - TABLET (max-width: 1024px)
   ============================================ */
@media (max-width: 1024px) {
  .layout {
    grid-template-columns: 1fr 2fr;
  }

  .sidebar {
    grid-column: 1 / 2;
    width: calc((100vw - (var(--spacing) * 3)) / 3);
  }

  .content {
    grid-column: 2 / 3;
  }

  .cursor-follower {
    display: none !important;
  }

  .item {
    grid-template-columns: 1fr;
    gap: 4px;
    padding: 0 0 12px;
  }

  .item-content {
    grid-column: 1;
    padding-top: 12px;
  }

  .item-meta {
    border-top: none;
    padding-top: 0;
  }

  .item-meta:empty {
    display: none;
  }


}


/* ============================================
   15. RESPONSIVE - MOBILE (max-width: 768px)
   ============================================ */
@media (max-width: 768px) {
  :root {
    --mobile-route-top-offset: 168px;
    --mobile-home-top-offset: 64px;
  }

  html, body {
    overflow: auto;
    height: auto;
    overscroll-behavior: auto;
    touch-action: pan-y pinch-zoom;
    scrollbar-width: thin;
  }

  html.home-active,
  body.home-active {
    height: 100vh;
    height: 100svh;
  }

  html.home-active,
  body.home-active,
  html.menu-active,
  body.menu-active {
    overflow: hidden;
    overscroll-behavior: none;
    touch-action: pinch-zoom;
  }

  body.menu-active {
    position: fixed;
    width: 100%;
  }

  .mobile-top-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding:
      calc(16px + env(safe-area-inset-top, 0px))
      calc(var(--spacing) + env(safe-area-inset-right, 0px))
      16px
      calc(var(--spacing) + env(safe-area-inset-left, 0px));
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 10020;
    background-color: var(--bg-light);
    background-image: none;
    border: 0;
    box-shadow: none;
    outline: 0;
  }

  .mobile-top-bar-actions {
    display: flex;
    align-items: center;
    gap: 12px;
  }

  .mobile-section-title {
    flex: 1 1 auto;
    min-width: 0;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    font-family: var(--font-sans);
    font-size: var(--font-size-body);
    font-weight: 500;
    color: var(--text-dark);
    line-height: 1.2;
    margin: 0;
  }

  .mobile-top-bar .profile-photo {
    display: block;
  }

  .mobile-profile-photo {
    background: transparent;
    border: 0;
    cursor: pointer;
    padding: 0;
  }

  .mobile-top-bar .theme-toggle {
    margin-top: 0;
  }

  /* JavaScript pins mobile filters below the top bar after they scroll up. */
  .section-filter {
    position: relative;
    top: auto;
    z-index: 50;
    margin-bottom: 0;
    padding: 0 0 16px;
    background-color: var(--bg-light);
    align-items: flex-start;
  }

  .section-filter::before {
    content: none;
  }

  .section-filter-label {
    padding-top: 3px;
  }

  .hamburger {
    display: flex;
  }

  .layout {
    grid-template-columns: 1fr;
    grid-template-rows: 1fr;
    min-height: 100vh;
    min-height: 100svh;
    padding-top: calc(var(--mobile-route-top-offset) + env(safe-area-inset-top, 0px));
  }

  body.home-active .layout {
    padding-top: calc(var(--mobile-home-top-offset) + env(safe-area-inset-top, 0px));
  }

  .nav-links .theme-toggle {
    display: none;
  }

  .sidebar {
    position: fixed;
    inset: 0;
    width: auto;
    z-index: 10010;
    background-color: var(--bg-light);
    display: flex;
    flex-direction: column;
    justify-content: flex-start;
    align-items: flex-start;
    gap: 24px;
    padding:
      calc(var(--mobile-route-top-offset) + env(safe-area-inset-top, 0px))
      calc(var(--spacing) + env(safe-area-inset-right, 0px))
      calc(72px + env(safe-area-inset-bottom, 0px))
      calc(var(--spacing) + env(safe-area-inset-left, 0px));
    transform: translateX(100%);
    visibility: hidden;
    overflow: hidden;
    overscroll-behavior: none;
    touch-action: pinch-zoom;
    transition: transform 0.35s cubic-bezier(0.65, 0, 0.35, 1), visibility 0.35s;
  }

  .sidebar.menu-open {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-links {
    flex-direction: column;
    gap: 8px;
    align-items: flex-start;
    width: 100%;
    font-family: var(--font-sans);
  }

  .nav-links.menu-text-repaint {
    opacity: 0.999;
    transform: translateZ(0);
    -webkit-transform: translateZ(0);
  }

  .nav-item {
    font-size: var(--font-size-menu);
    letter-spacing: 0;
    line-height: 1.1;
    padding: 2px 0;
    text-align: left;
    text-transform: none;
    font-weight: 400;
  }

  .nav-item.active {
    font-weight: 500;
  }

  .sidebar .nav-item[data-target="home"] {
    display: none;
  }

  .mobile-menu-contact {
    display: flex;
    position: fixed;
    left: var(--spacing);
    right: var(--spacing);
    bottom: calc(var(--spacing) + env(safe-area-inset-bottom, 0px));
    flex-direction: row;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 6px;
    margin-top: 0;
    font-family: var(--font-sans);
  }

  .mobile-menu-contact a {
    color: var(--text-muted);
    text-decoration: none;
  }

  .mobile-menu-contact .contact-icon {
    width: 36px;
    height: 36px;
    padding: 8px;
  }

  .mobile-menu-contact a:hover {
    color: var(--text-dark);
    text-decoration: none;
  }

  .contact-bar {
    display: none;
  }

  .content {
    grid-column: 1;
    grid-row: 1;
    min-height: 0;
  }

  .home-intro {
    --home-name-size: var(--font-size-large);
    --home-role-size: var(--font-size-large);
    display: block;
    margin-top: 0;
    line-height: 1.35 !important;
  }

  .home-name {
    display: inline;
  }

  .home-work-link {
    display: inline-flex;
    align-items: center;
  }

  .section-description {
    font-size: var(--font-size-body);
    margin-bottom: 20px;
  }

  #experience {
    min-height: auto;
    padding-bottom: 0;
  }

  .lightbox {
    flex-direction: column;
    justify-content: center;
    gap: 0;
    padding:
      calc(var(--spacing) + var(--lightbox-control-gap) + 38px)
      var(--spacing)
      calc(var(--spacing) + var(--lightbox-control-gap) + var(--lightbox-counter-size) + 10px);
  }

  .lightbox-story-bar {
    left: var(--spacing);
    right: var(--spacing);
  }

  .lightbox-close {
    position: absolute;
    top: calc(var(--spacing) + env(safe-area-inset-top, 0px) + 10px);
    right: 0;
    width: 44px;
    height: 44px;
    font-size: var(--font-size-body);
    border: none;
  }

  .lightbox-content {
    order: initial;
    max-width: calc(100vw - (var(--spacing) * 2));
    max-height: calc(100vh - (var(--spacing) * 2) - (var(--lightbox-control-gap) * 2) - 38px);
    max-height: calc(100dvh - (var(--spacing) * 2) - (var(--lightbox-control-gap) * 2) - 38px);
  }

  .lightbox-content img {
    max-height: calc(100vh - (var(--spacing) * 2) - (var(--lightbox-control-gap) * 2) - 38px);
    max-height: calc(100dvh - (var(--spacing) * 2) - (var(--lightbox-control-gap) * 2) - 38px);
  }

  .lightbox-counter {
    position: absolute;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%);
    border: none;
  }

  .contact-bar {
    width: auto;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 0;
  }
}


/* ============================================
   16. RESPONSIVE - SMALL MOBILE (max-width: 480px)
   ============================================ */
@media (max-width: 480px) {
  #gallery {
    padding-left: 0;
    padding-right: 0;
  }



  .profile-photo {
    display: none;
  }

  .contact-links {
    margin-left: 0;
  }
}


/* ============================================
   17. RESPONSIVE - TOUCH DEVICES
   ============================================ */
@media (hover: none) and (pointer: coarse) {
  section {
    scrollbar-width: thin;
  }
}