/* ═══════════════════════════════════════════════════════════
   SECTIONS — about, research, method, experience, education,
   recognition, and the footer that is also the contact page.
   ═══════════════════════════════════════════════════════════ */

.sec { padding: var(--section-y) 0; border-top: 1px solid var(--hair); }

.sec__head {
  display: flex; justify-content: space-between; align-items: center; gap: var(--s-3);
  margin-bottom: clamp(48px, 6vw, 96px);
  color: var(--ink);
}
.sec__head i { font-style: normal; }
.sec__head .dim { text-align: right; }
@media (max-width: 640px) { .sec__head .dim { display: none; } }

.sec__intro { display: grid; gap: var(--s-4); margin-bottom: clamp(48px, 6vw, 96px); }
.sec__title {
  font-size: var(--fs-h2); line-height: 0.98;
  letter-spacing: var(--track-tight); font-weight: 500; max-width: 16ch;
}
.sec__title em { color: var(--ink-3); }
.sec__lede { font-size: var(--fs-lede); color: var(--ink-3); max-width: 40ch; line-height: 1.35; letter-spacing: -0.015em; }

/* ═══ 01 · manifesto ═════════════════════════════════════ */
.mani {
  position: relative;
  display: flex; flex-direction: column;
  /* sized off the viewport so the longest line plus its indent always
     fits: the lines never wrap, or the ink layer would part from them */
  font-size: clamp(1.6rem, 7.2vw, 7.5rem); line-height: 0.98;
  letter-spacing: var(--track-display); font-weight: 500;
}
.mani__line {
  position: relative;
  display: block; width: max-content; max-width: 100%;
  white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px var(--hair-2);
  padding-bottom: 0.04em;
}
/* the ink, laid over the outline and uncovered left to right */
.mani__line::after {
  content: attr(data-text);
  position: absolute; inset: 0;
  color: var(--ink); -webkit-text-stroke: 0;
  clip-path: inset(0 calc(100% - var(--fill, 100%)) 0 0);
}
.mani__line--in { margin-left: 12%; }
.mani__line--in2 { margin-left: 24%; }
.mani__note { position: absolute; color: var(--accent); font-size: var(--fs-micro); line-height: 1; }
/* placed in the box's own percentages: an em here is the note's,
   not the headline's */
.mani__note--a { top: 8%; right: 0; }
.mani__note--b { top: 8%; right: 0; margin-top: 1.6em; }
.mani__note--c { bottom: 22%; left: 0; }
@media (max-width: 800px) {
  .mani__line--in { margin-left: 6%; }
  .mani__line--in2 { margin-left: 12%; }
  .mani__note { display: none; }
}

.about {
  display: grid; gap: var(--s-6) var(--col-gap);
  grid-template-columns: repeat(12, minmax(0, 1fr));
  margin-top: clamp(64px, 8vw, 140px);
  padding-top: var(--s-5);
  border-top: 1px solid var(--hair);
}
.about__text { grid-column: 1 / span 7; }
.about__side { grid-column: 9 / span 4; display: grid; gap: var(--s-5); align-content: start; }
.about__lead { font-size: var(--fs-lede); line-height: 1.35; letter-spacing: -0.015em; color: var(--ink-3); }
.about__lead b { color: var(--ink); font-weight: 400; }
.about__cols { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--col-gap); margin-top: var(--s-5); }
.about__cols p { color: var(--ink-2); font-size: var(--fs-sm); line-height: 1.65; }
.about__cols b { font-weight: 500; }
.about__cols em { color: var(--accent); }
@media (max-width: 1000px) {
  .about__text, .about__side { grid-column: 1 / -1; }
  .about__side { grid-template-columns: repeat(2, minmax(0, 1fr)); align-items: start; }
}
@media (max-width: 640px) {
  .about__cols, .about__side { grid-template-columns: 1fr; }
}

/* ═══ 02 · research: pinned slides ═══════════════════════════
   Each project pins for three screens of scroll. The figure plays
   its three states, Question → Instrument → Finding, and the tabs
   fill as it goes. Without JS, on a narrow screen and under reduced
   motion, nothing pins and every figure shows its final state. */
.sec--research { padding-bottom: 0; }
.slide { position: relative; border-top: 1px solid var(--hair); }
.slide__pin { padding: clamp(40px, 5vw, 72px) 0; }
.slide__grid {
  display: grid; gap: var(--s-5) var(--col-gap);
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: stretch;
}
.slide__text { grid-column: 1 / span 4; display: flex; flex-direction: column; }

@media (min-width: 1001px) and (prefers-reduced-motion: no-preference) {
  .js .slide { height: 300vh; }
  .js .slide__pin {
    position: sticky; top: var(--nav-h);
    height: calc(100vh - var(--nav-h));
    display: flex; align-items: center;
    padding: 0;
  }
  .js .slide__pin > .wrap { width: 100%; }
}

.slide__count {
  font-size: var(--fs-stat); font-weight: 500; line-height: 0.85;
  letter-spacing: var(--track-display); color: var(--ink);
  margin-bottom: auto; padding-bottom: var(--s-5);
}
.ghost { color: transparent; -webkit-text-stroke: 1px var(--ink-3); }
.slide__meta {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 4px var(--s-3);
  color: var(--ink);
}
.slide__title {
  margin-top: 14px;
  font-size: var(--fs-h3); line-height: 1.02; font-weight: 500;
  letter-spacing: var(--track-tight);
}
.slide__line { margin-top: 14px; color: var(--ink-2); font-size: var(--fs-sm); line-height: 1.6; }
.slide__state { display: flex; align-items: center; gap: 10px; margin-top: 14px; color: var(--ink-3); }
.slide__text .btn { align-self: flex-start; margin-top: var(--s-4); }

.tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: var(--s-5); }
.tabs__tab {
  position: relative; display: flex; flex-direction: column; gap: 2px;
  padding-top: 14px; color: var(--ink-3); font-size: var(--fs-sm); font-weight: 500;
  border-top: 2px solid var(--hair-2);
  transition: color var(--dur) var(--ease);
}
.tabs__tab .mono { font-size: 0.66rem; color: inherit; }
.tabs__bar {
  position: absolute; left: 0; top: -2px; height: 2px; width: 100%;
  background: var(--accent); transform-origin: left; transform: scaleX(var(--p, 1));
}
.slide[data-step] .tabs__tab { color: var(--ink-3); }
.slide[data-step] .tabs__tab.is-on { color: var(--ink); }
.tabs__say { position: relative; margin-top: 18px; min-height: 5.2em; }
.tabs__say p { color: var(--ink-2); font-size: var(--fs-sm); line-height: 1.55; }
.slide[data-step] .tabs__say p {
  position: absolute; inset: 0 0 auto;
  opacity: 0; transform: translateY(6px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.slide[data-step='1'] .tabs__say [data-say='1'],
.slide[data-step='2'] .tabs__say [data-say='2'],
.slide[data-step='3'] .tabs__say [data-say='3'] { opacity: 1; transform: none; }
.slide:not([data-step]) .tabs__say p + p { margin-top: 10px; }

/* the demo stage: a live 3D scene on an instrument screen */
.demo { grid-column: 5 / span 8; min-width: 0; display: flex; flex-direction: column; }
.demo__panel {
  position: relative; flex: 1; min-height: 420px;
  border: 1px solid var(--hair-2);
  overflow: hidden;
}
.demo__canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.demo__bar {
  position: absolute; left: 0; right: 0; top: 0; z-index: 2;
  display: flex; justify-content: space-between; gap: var(--s-3);
  padding: 12px 14px; color: var(--ink-3);
  pointer-events: none;
}
.demo__live { display: inline-flex; align-items: center; gap: 8px; color: var(--ink); }
.demo__hud {
  position: absolute; left: 14px; bottom: 44px; z-index: 2;
  display: inline-flex; align-items: center; flex-wrap: wrap; gap: 6px 14px;
  padding: 8px 12px;
  background: rgb(8 9 11 / 0.78); border: 1px solid var(--hair-2);
  color: var(--ink-3); pointer-events: none;
  font-variant-numeric: tabular-nums;
}
.demo__hud b { color: var(--ink); font-weight: 500; }
.demo__dot { width: 7px; height: 7px; border-radius: 50%; background: #5B7CFF; transition: background-color var(--dur) var(--ease); }
.demo__hud[data-tone='bad'] .demo__dot { background: #FF7A45; }
.demo__hud[data-tone='warn'] .demo__dot { background: #E8EBEE; }
.demo__track {
  position: absolute; left: 14px; right: 14px; bottom: 14px; z-index: 2;
  display: flex; justify-content: space-between; color: var(--ink-3);
  padding-top: 8px; border-top: 1px solid var(--hair-2);
  font-size: 0.62rem; pointer-events: none;
}
.demo__fault { position: absolute; left: 40%; top: 8px; transform: translateX(-50%); color: #FF7A45; }
.demo__fault::before { content: ''; position: absolute; left: 50%; top: -12px; width: 1px; height: 8px; background: #FF7A45; }
.demo__fill { position: absolute; left: 0; top: -1px; height: 1px; width: 100%; background: #5B7CFF; transform-origin: left; transform: scaleX(var(--p, 0)); }
.demo__key {
  position: absolute; right: 14px; bottom: 14px; z-index: 2;
  display: flex; gap: 14px; color: var(--ink-3); pointer-events: none;
}
.demo__k { display: inline-flex; align-items: center; gap: 8px; }
.demo__k::before { content: ''; width: 16px; height: 0; border-top: 2px solid #5B7CFF; }
.demo__k--burn::before { border-top: 3px solid #FF7A45; }
.demo--flyby .demo__hud { bottom: 14px; }
.demo__cap { margin-top: 12px; font-size: var(--fs-mono); line-height: 1.6; color: var(--ink-3); max-width: 72ch; }
html:not(.js) .demo { display: none; }

@media (max-width: 1000px) {
  .slide__text, .demo { grid-column: 1 / -1; }
  .demo__panel { min-height: 0; aspect-ratio: 4 / 3; }
  .slide__count { margin-bottom: var(--s-4); padding-bottom: 0; }
  .tabs { display: none; }
  .tabs__say { min-height: 0; }
}

.nojs-note { display: none; }

/* ═══ 03 · method ════════════════════════════════════════ */
.steps4 {
  position: relative;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: var(--col-gap);
  padding-top: 30px;
}
.steps4::before { content: ''; position: absolute; left: 0; right: 0; top: 4px; height: 1px; background: var(--hair-2); }
.steps4__item { position: relative; }
.steps4__dot {
  position: absolute; top: -30px; left: 0;
  width: 9px; height: 9px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 5px var(--bg);
}
.steps4__item:first-child::before {
  content: ''; position: absolute; top: -26px; left: 0; width: 64px; height: 1px; background: var(--accent);
}
.steps4__no { color: var(--ink-3); }
.steps4__title { margin-top: 10px; font-size: var(--fs-h3); letter-spacing: var(--track-tight); line-height: 1.05; font-weight: 500; }
.steps4__body { margin-top: 12px; color: var(--ink-2); font-size: var(--fs-sm); line-height: 1.6; max-width: 32ch; }
@media (max-width: 1000px) { .steps4 { grid-template-columns: repeat(2, minmax(0, 1fr)); row-gap: var(--s-6); } }
@media (max-width: 600px) {
  .steps4 { grid-template-columns: 1fr; padding-top: 0; padding-left: 30px; }
  .steps4::before { left: 4px; right: auto; top: 0; bottom: 0; width: 1px; height: auto; }
  .steps4__dot { top: 8px; left: -30px; }
  .steps4__item:first-child::before { display: none; }
}

/* ═══ 04 · experience ════════════════════════════════════ */
.roles { border-top: 1px solid var(--hair-2); }
.role {
  position: relative;
  display: grid; align-items: baseline; gap: 10px var(--col-gap);
  grid-template-columns: repeat(12, minmax(0, 1fr));
  padding: clamp(28px, 3.4vw, 48px) 0;
  border-bottom: 1px solid var(--hair-2);
}
.role__no { grid-column: span 1; color: var(--ink-3); }
.role__org {
  grid-column: 2 / span 6;
  font-size: var(--fs-h3); line-height: 1.02; font-weight: 500;
  letter-spacing: var(--track-tight);
  transition: transform var(--dur) var(--ease);
}
.role__info { grid-column: 9 / span 4; }
.role__title { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; color: var(--ink); font-size: var(--fs-sm); font-weight: 500; }
.role__date { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-3); white-space: nowrap; }
.role__desc { margin-top: 8px; color: var(--ink-2); font-size: var(--fs-sm); line-height: 1.6; }
@media (hover: hover) { .role:hover .role__org { transform: translateX(10px); } }
@media (max-width: 1000px) {
  .role__org, .role__info { grid-column: 2 / -1; }
}
@media (max-width: 640px) {
  .role { grid-template-columns: 2.2rem minmax(0, 1fr); }
  .role__no { grid-column: 1; }
  .role__org, .role__info { grid-column: 2; }
}

/* ═══ 04.1 · education ═══════════════════════════════════ */
.sec--cont { border-top: 0; padding-top: 0; }
.edu { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--col-gap); }
.edu__item { display: flex; flex-direction: column; gap: 10px; padding-top: var(--s-4); border-top: 1px solid var(--hair-2); }
.edu__name { font-size: var(--fs-h3); line-height: 1.02; letter-spacing: var(--track-tight); margin-top: 6px; font-weight: 500; }
.edu__meta { color: var(--ink); font-size: var(--fs-sm); font-weight: 500; }
.edu__body { color: var(--ink-2); font-size: var(--fs-sm); line-height: 1.6; max-width: 48ch; }
.edu__stat { display: flex; align-items: baseline; gap: 14px; margin-top: auto; padding-top: var(--s-5); }
.edu__num { font-size: var(--fs-stat); font-weight: 500; line-height: 0.85; letter-spacing: var(--track-display); color: var(--ink); font-variant-numeric: tabular-nums; }
@media (max-width: 800px) { .edu { grid-template-columns: 1fr; row-gap: var(--s-6); } }

/* ═══ 05 · recognition ═══════════════════════════════════ */
.awards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); column-gap: var(--col-gap); }
.award { display: flex; flex-direction: column; padding: var(--s-4) 0 var(--s-6); border-top: 1px solid var(--hair-2); }
.award__big {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: var(--fs-stat); font-weight: 500; line-height: 0.9;
  letter-spacing: var(--track-display); color: var(--ink);
  margin-bottom: var(--s-5); white-space: nowrap;
}
.award__big small {
  font-family: var(--font-mono); font-size: var(--fs-micro); font-weight: 400;
  letter-spacing: var(--track-wide); text-transform: uppercase; color: var(--accent);
  line-height: 1; margin-top: 0.4em;
}
.award__name { font-size: var(--fs-body); font-weight: 500; letter-spacing: -0.01em; }
.award__result { margin-top: 4px; color: var(--ink-3); }
.award__desc { margin-top: 12px; color: var(--ink-2); font-size: var(--fs-sm); line-height: 1.6; max-width: 34ch; }
@media (max-width: 1000px) { .awards { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 600px) { .awards { grid-template-columns: 1fr; } }

/* ═══ 06 · footer / contact ══════════════════════════════ */
.foot { padding-top: var(--section-y); border-top: 1px solid var(--hair); overflow: hidden; }
.foot__grid { display: grid; gap: var(--s-6) var(--col-gap); grid-template-columns: repeat(12, minmax(0, 1fr)); }
.foot__cta { grid-column: 1 / span 6; }
.foot__title {
  font-size: var(--fs-h3); line-height: 1.08; font-weight: 500;
  letter-spacing: var(--track-tight); max-width: 18ch;
}
.foot__mail {
  color: var(--accent);
  background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat;
  transition: background-size var(--dur) var(--ease);
}
.foot__mail:hover { background-size: 0 1px; background-position: 100% 100%; }

.foot__cols { grid-column: 8 / span 5; display: grid; grid-template-columns: repeat(3, minmax(0, auto)); gap: var(--s-5); justify-content: space-between; }
.foot__cols .mono { margin-bottom: 14px; }
.foot__cols li + li { margin-top: 6px; }
.foot__cols a { color: var(--ink); font-size: var(--fs-sm); overflow-wrap: anywhere; transition: color var(--dur-fast) var(--ease); }
.foot__cols a:hover { color: var(--accent); }

.foot__mark { position: relative; margin-top: clamp(96px, 11vw, 180px); }
.foot__word {
  /* the CSS size is a close guess; hero.js fits it to the column exactly */
  display: block;
  font-size: min(12.4vw, 11.2rem); font-weight: 500;
  line-height: 0.8; letter-spacing: -0.06em; color: var(--ink);
  white-space: nowrap; user-select: none;
  padding-bottom: 0.08em;
}
.specbox {
  position: absolute; right: 0; bottom: calc(100% + 18px);
  display: grid; grid-template-columns: repeat(3, auto);
  border: 1px solid var(--hair-2); background: var(--bg);
  color: var(--ink-3);
}
.specbox > div { padding: 10px 14px; border-right: 1px solid var(--hair-2); }
.specbox > div:nth-child(3) { border-right: 0; }
.specbox > div > p:first-child { font-size: 0.625rem; }
.specbox__n { margin: 4px 0 0; color: var(--ink); font-size: 1.375rem; line-height: 1; letter-spacing: -0.02em; font-family: var(--font-mono); }
.specbox__foot {
  grid-column: 1 / -1; display: flex; justify-content: space-between; gap: 16px;
  padding: 8px 14px; border-top: 1px solid var(--hair-2); font-size: 0.625rem;
}
.foot__bar {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px var(--s-4);
  padding: 18px 0 calc(18px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--hair); color: var(--ink-2);
}
.foot__bar a:hover { color: var(--accent); }

@media (max-width: 1000px) {
  .foot__cta, .foot__cols { grid-column: 1 / -1; }
  .foot__cols { justify-content: start; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .foot__cols > :last-child { grid-column: 1 / -1; }
  .specbox { position: static; margin: 0 0 var(--s-4) auto; width: max-content; }
}
@media (max-width: 640px) { .foot__built { display: none; } }
@media (max-width: 480px) { .specbox { width: 100%; grid-template-columns: repeat(3, 1fr); } }

kbd {
  display: inline-grid; place-items: center; min-width: 1.8em; padding: 1px 5px;
  border: 1px solid var(--hair-2); border-radius: 4px;
  font-family: var(--font-mono); font-size: 0.625rem; letter-spacing: 0.02em; line-height: 1.5;
  color: var(--ink); text-transform: none;
}

/* ═══ the cursor ═════════════════════════════════════════════
   Sizes, timings and curves as specified: a 6px point, a 34px ring
   that grows to a 52px diamond on anything pressable, collapses to a
   caret over text, shrinks while held. */
:root {
  --cursor-quick: 260ms;
  --cursor-mid: 620ms;
  --ease-cursor: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-turn: cubic-bezier(0.16, 1, 0.3, 1);
}
.has-cursor, .has-cursor * { cursor: none !important; }
.has-cursor input, .has-cursor textarea, .has-cursor select, .has-cursor [contenteditable] { cursor: auto !important; }

.cursor-layer {
  position: fixed; inset: 0; width: 100%; height: 100%;
  margin: 0; padding: 0; border: 0; background: none; overflow: visible;
  pointer-events: none; z-index: 9999; color: inherit;
}
.cursor-layer:popover-open { display: block; }
.cursor, .cursor-ring {
  position: fixed; top: 0; left: 0; z-index: 9999;
  pointer-events: none; will-change: transform;
  opacity: 0; transition: opacity var(--cursor-quick) var(--ease-cursor);
}
.has-cursor .cursor, .has-cursor .cursor-ring { opacity: 1; }
.cursor { width: 6px; height: 6px; translate: -50% -50%; background: var(--ink); border-radius: 1px; }
.cursor-ring { width: 0; height: 0; }
.cursor-ring__box {
  position: absolute; top: 0; left: 0;
  width: 34px; height: 34px; translate: -50% -50%;
  border: 1px solid color-mix(in srgb, var(--ink) 45%, transparent);
  border-radius: 4px;
  transition: width var(--cursor-quick) var(--ease-cursor),
              height var(--cursor-quick) var(--ease-cursor),
              border-color var(--cursor-quick) var(--ease-cursor),
              border-radius var(--cursor-quick) var(--ease-cursor),
              background-color var(--cursor-quick) var(--ease-cursor),
              rotate var(--cursor-mid) var(--ease-turn),
              opacity var(--cursor-quick) var(--ease-cursor);
}
.cursor-ring.is-hot .cursor-ring__box { width: 52px; height: 52px; border-color: var(--accent); border-radius: 6px; rotate: 45deg; }
.cursor-ring.is-cold .cursor-ring__box { border-color: var(--accent-line); }
.cursor-ring.is-down .cursor-ring__box { width: 26px; height: 26px; }
.cursor-ring.is-text .cursor-ring__box { width: 2px; height: 26px; border-radius: 1px; border-color: var(--accent); background: var(--accent); rotate: 0deg; }
.cursor.is-hidden { opacity: 0; }
.cursor.is-out, .cursor-ring.is-out { opacity: 0; }
@media (hover: none), (prefers-reduced-motion: reduce) {
  .has-cursor, .has-cursor * { cursor: auto !important; }
  .cursor, .cursor-ring, .cursor-layer { display: none !important; }
}