/* ---------------------------------------------------------
   Base tokens
--------------------------------------------------------- */
:root {
  --paper: #FCFFEB;
  --paper-rgb: 252, 255, 235;
  --ink: #1a1a1a;
  --ink-soft: #55534d;
  --rule: #d8d5cd;
  --accent: #C57B57;
  --grid-line: rgba(26, 26, 26, 0.07);
  --topbar-height: 60px;
  --font-mono: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace;
}

:root[data-theme="dark"] {
  --paper: #15171b;
  --paper-rgb: 21, 23, 27;
  --ink: #ececE4;
  --ink-soft: #a5a196;
  --rule: #34372f;
  --accent: #e6996b;
  --grid-line: rgba(255, 255, 255, 0.05);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-size: 17px;
}

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

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-mono);
  font-size: 15.5px;
  line-height: 1.55;
}

/* Grid patches: small circular swatches of the background grid.
   Hidden by default and faded in via opacity, either because a
   blob-tracker box is near (.is-near, toggled in script.js) or
   on their own timer (.is-ambient). Never a full-page grid, so
   it's never sitting behind readable text. */
.grid-patch {
  position: fixed;
  top: 0;
  left: 0;
  width: 130px;
  height: 130px;
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0;
  z-index: -3;
  pointer-events: none;
}

@media (prefers-reduced-motion: no-preference) {
  .grid-patch { transition: opacity 0.4s ease; }
  .grid-patch.is-ambient { animation: grid-ambient-pulse 16s ease-in-out infinite; }
}

.grid-patch.is-near {
  opacity: 1;
}

@keyframes grid-ambient-pulse {
  0%, 100% { opacity: 0; }
  8%, 30%  { opacity: 1; }
  42%      { opacity: 0; }
}


/* ---------------------------------------------------------
   Blob tracker (background decoration)
--------------------------------------------------------- */
.blob-tracker {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  opacity: 0;
}

@media (prefers-reduced-motion: no-preference) {
  .blob-tracker { transition: opacity 0.3s ease; }
}

.blob-tracker.is-active {
  opacity: 1;
}

.blob-box {
  fill: none;
  stroke: var(--accent);
  stroke-width: 1.2;
  vector-effect: non-scaling-stroke;
  opacity: 0;
}

.blob-line {
  stroke: var(--ink-soft);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
  opacity: 0;
}

.blob-label {
  fill: var(--ink-soft);
  font-family: var(--font-mono);
  font-size: 10px;
  opacity: 0;
}

@media (prefers-reduced-motion: no-preference) {
  .blob-box, .blob-line, .blob-label { transition: opacity 0.3s ease; }
}

.blob-box.is-near {
  opacity: 0.85;
}

.blob-line.is-near {
  opacity: 0.45;
}

.blob-label.is-near {
  opacity: 0.8;
}

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

@media (prefers-reduced-motion: no-preference) {
  a { transition: color 0.15s ease, border-color 0.15s ease, background-color 0.15s ease; }
}

/* ---------------------------------------------------------
   Roll-reveal text hover (link text rolls up to a duplicate
   copy underneath, replacing the italic hover)
--------------------------------------------------------- */
.roll {
  vertical-align: top;
  display: inline-block;
  overflow: hidden;
}

.roll-inner {
  display: block;
  position: relative;
}

@media (prefers-reduced-motion: no-preference) {
  .roll-inner { transition: transform 0.45s cubic-bezier(0.4, 0, 0.15, 1); }
}

.roll-face {
  white-space: nowrap;
  display: block;
}

.roll-face + .roll-face {
  position: absolute;
  top: 100%;
  left: 0;
}

a:hover .roll-inner {
  transform: translateY(-100%);
}

/* ---------------------------------------------------------
   Top bar (fixed header): name centered, nav top-right
--------------------------------------------------------- */
.top-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 10002;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--topbar-height);
  padding: 0.6rem 1.5rem;
  background-color: var(--paper);
  border-bottom: 1px solid var(--rule);
}

.site-name {
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  margin: 0;
  font-size: 0.85rem;
  font-weight: 600;
  white-space: nowrap;
}

@media (max-width: 900px) {
  .top-bar nav.site-nav { gap: 0 0.7rem; }
  .top-bar nav.site-nav a { font-size: 0.75rem; }
  .site-name { font-size: 0.75rem; }
}

@media (max-width: 720px) {
  .top-bar {
    flex-direction: column;
    justify-content: center;
    gap: 0.35rem;
    padding: 0.6rem 1rem;
  }
  .site-name {
    position: static;
    transform: none;
    order: -1;
  }
  .top-bar nav.site-nav {
    justify-content: center;
  }
}

@media (max-width: 420px) {
  .site-name { font-size: 0.65rem; }
  .top-bar nav.site-nav { gap: 0 0.5rem; }
  .top-bar nav.site-nav a { font-size: 0.65rem; }
}

/* ---------------------------------------------------------
   Layout
--------------------------------------------------------- */
.layout {
  max-width: 900px;
  margin: 0 auto;
  padding: calc(2.5rem + var(--topbar-height)) 1.5rem 4rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.sidebar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.25rem 2rem;
  border-bottom: 1px solid var(--rule);
  padding: 1rem 1rem 1.5rem;
}

.main-content {
  width: 100%;
}

@media (max-width: 720px) {
  .layout {
    padding: calc(1.75rem + var(--topbar-height) + 34px) 1.25rem 3rem;
    gap: 1.75rem;
  }
  .sidebar {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
}

/* ---------------------------------------------------------
   Sidebar
--------------------------------------------------------- */
.avatar {
  width: 120px;
  height: 120px;
  object-fit: cover;
  border-radius: 0;
  border: 1px solid var(--ink);
  display: block;
  flex-shrink: 0;
  margin-left: 1.5rem;
  filter: url(#motion-blur);
}

.profile-text {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.identity {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.site-tagline {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin: 0;
}

.meta-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.meta-list li {
  font-size: 0.66rem;
  line-height: 1.4;
  color: var(--ink-soft);
}

.meta-list a {
  color: var(--ink);
  border-bottom: 1px solid var(--rule);
  text-decoration: none;
}

.meta-list a:hover {
  border-bottom-color: var(--accent);
}

.interests {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.interests span {
  font-size: 0.72rem;
  color: var(--accent);
  border: 1px solid var(--rule);
  border-radius: 0;
  padding: 0.18rem 0.45rem;
}

nav.site-nav {
  display: flex;
  flex-direction: row;
  flex-wrap: wrap;
  gap: 0 1rem;
}

nav.site-nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.85rem;
  width: fit-content;
  border-bottom: 1px solid transparent;
}

nav.site-nav a:hover {
  color: var(--ink);
  border-bottom-color: var(--ink-soft);
}

/* ---------------------------------------------------------
   Main content / sections
--------------------------------------------------------- */
section {
  scroll-margin-top: 1.5rem;
  margin-bottom: 2.25rem;
  padding: 1rem;
}

section:last-child {
  margin-bottom: 0;
}

h2.section-title {
  font-size: 1.4rem;
  font-weight: 600;
  margin: 0 0 0.85rem;
  color: var(--accent);
}

p {
  margin: 0 0 0.7rem;
}

.kreedz-description {
  font-size: 0.82rem;
  margin: 0;
}

/* ---------------------------------------------------------
   Publications / Teaching / Talks (shared .entry-list)
--------------------------------------------------------- */
.entry-list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.entry {
  display: flex;
  align-items: baseline;
  gap: 0.85rem;
  padding: 0.32rem 0;
  border-bottom: 1px solid var(--rule);
  font-size: 0.82rem;
  transition: background-color 0.15s ease;
}

.entry:first-child {
  border-top: 1px solid var(--rule);
}

.entry:hover {
  background-color: rgba(255, 60, 56, 0.06);
}

@media (max-width: 480px) {
  .entry { flex-direction: column; gap: 0.1rem; }
}

.entry-year {
  flex: 0 0 4rem;
  color: var(--ink-soft);
  font-size: 0.72rem;
  transition: padding-left 0.15s ease;
}

.entry:hover .entry-year {
  padding-left: 0.4rem;
}

.entry-title {
  font-weight: 600;
  flex: 1;
  font-size:0.72rem
}

.entry-role {
  color: var(--ink-soft);
  font-size: 0.72rem;
  font-weight: 400;
  white-space: nowrap;
  margin-left: auto;
}

.entry-title .entry-role {
  display: block;
  font-style: italic;
  white-space: normal;
}

.entry-title .entry-role::before {
  content: "[";
}

.entry-title .entry-role::after {
  content: "]";
}

a.entry-role {
  color: var(--accent);
  border: 1px solid var(--rule);
  padding: 0.1rem 0.4rem;
}

.entry-title a.entry-role {
  border: none;
  padding: 0;
}

a.entry-role:hover {
  color: var(--accent);
  border-color: var(--accent);
}

@media (max-width: 480px) {
  .entry-role { margin-left: 0; }
}

/* ---------------------------------------------------------
   KZCOMP gallery
--------------------------------------------------------- */
.kreedz-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 0;
  margin-top: 1.5rem;
  border: 1px solid var(--rule);
}

.gallery-item {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  overflow: visible;
  padding: 0;
  border: none;
  background: var(--ink);
  cursor: pointer;
  font: inherit;
}

.gallery-item:hover,
.gallery-item:focus-visible {
  z-index: 5;
}

.gallery-item img {
  --gray: 35%;
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (prefers-reduced-motion: no-preference) {
  .gallery-item img { transition: transform 0.25s ease; }
}

.gallery-item:hover img,
.gallery-item:focus-visible img {
  --gray: 0%;
  transform: scale(1.35);
}

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

/* ---------------------------------------------------------
   Lightbox
--------------------------------------------------------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: none;
  align-items: center;
  justify-content: center;
  background: rgba(10, 10, 8, 0.92);
  padding: 3rem 1.5rem;
}

.lightbox.is-open {
  display: flex;
}

.lightbox-img {
  max-width: min(90vw, 1100px);
  max-height: 85vh;
  width: auto;
  height: auto;
  border: 1px solid var(--rule);
  object-fit: contain;
}

.lightbox-close {
  position: fixed;
  top: 1.25rem;
  right: 1.75rem;
  font-family: var(--font-mono);
  font-size: 2rem;
  line-height: 1;
  color: var(--paper);
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0.25rem 0.5rem;
}

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

/* ---------------------------------------------------------
   Barcode scroll indicator
--------------------------------------------------------- */
html {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

html::-webkit-scrollbar {
  display: none;
}

.barcode-scrollbar {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  width: 30px;
  height: 220px;
  z-index: 9999;
  cursor: pointer;
  overflow: hidden;
  border: 1px solid var(--rule);
  background-color: var(--paper);
}

@media (max-width: 480px) {
  .barcode-scrollbar { height: 150px; }
}

.barcode-bars {
  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 600px;
  will-change: transform;
  background-repeat: repeat-y;
  background-size: 100% 150px;
  background-image: repeating-linear-gradient(
    to bottom,
    var(--ink) 0px, var(--ink) 2px,
    transparent 2px, transparent 4px,
    var(--ink) 4px, var(--ink) 5px,
    transparent 5px, transparent 9px,
    var(--ink) 9px, var(--ink) 13px,
    transparent 13px, transparent 15px,
    var(--ink) 15px, var(--ink) 16px,
    transparent 16px, transparent 21px,
    var(--ink) 21px, var(--ink) 24px,
    transparent 24px, transparent 26px,
    var(--ink) 26px, var(--ink) 27px,
    transparent 27px, transparent 33px,
    var(--ink) 33px, var(--ink) 35px,
    transparent 35px, transparent 37px,
    var(--ink) 37px, var(--ink) 42px,
    transparent 42px, transparent 45px,
    var(--ink) 45px, var(--ink) 46px,
    transparent 46px, transparent 52px,
    var(--ink) 52px, var(--ink) 56px,
    transparent 56px, transparent 58px,
    var(--ink) 58px, var(--ink) 59px,
    transparent 59px, transparent 64px,
    var(--ink) 64px, var(--ink) 67px,
    transparent 67px, transparent 69px,
    var(--ink) 69px, var(--ink) 73px,
    transparent 73px, transparent 76px,
    var(--ink) 76px, var(--ink) 77px,
    transparent 77px, transparent 83px,
    var(--ink) 83px, var(--ink) 86px,
    transparent 86px, transparent 88px,
    var(--ink) 88px, var(--ink) 89px,
    transparent 89px, transparent 95px,
    var(--ink) 95px, var(--ink) 99px,
    transparent 99px, transparent 101px,
    var(--ink) 101px, var(--ink) 105px,
    transparent 105px, transparent 108px,
    var(--ink) 108px, var(--ink) 109px,
    transparent 109px, transparent 115px,
    var(--ink) 115px, var(--ink) 118px,
    transparent 118px, transparent 120px,
    var(--ink) 120px, var(--ink) 124px,
    transparent 124px, transparent 127px,
    var(--ink) 127px, var(--ink) 130px,
    transparent 130px, transparent 134px,
    var(--ink) 134px, var(--ink) 136px,
    transparent 136px, transparent 141px,
    var(--ink) 141px, var(--ink) 145px,
    transparent 145px, transparent 150px
  );
  opacity: 0.85;
}

@media (prefers-reduced-motion: no-preference) {
  .barcode-bars { transition: transform 0.25s ease-out; }
}

/* ---------------------------------------------------------
   Dark mode toggle
--------------------------------------------------------- */
.dark-toggle {
  position: fixed;
  left: 1.25rem;
  bottom: 1.25rem;
  z-index: 10001;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  color: var(--ink-soft);
  background-color: rgba(var(--paper-rgb), 0.7);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  border: 1px solid var(--rule);
  padding: 0.4rem 0.7rem;
  cursor: pointer;
}

.dark-toggle:hover {
  color: var(--ink);
  border-color: var(--ink-soft);
}

.dark-toggle-label::before {
  content: "[ ";
}

.dark-toggle-label::after {
  content: " ]";
}

/* ---------------------------------------------------------
   Accessibility
--------------------------------------------------------- */
a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}