/* ==========================================================================
   Studio Krivo — redesign
   ========================================================================== */

:root {
  --bg: #f3f1ec;
  --bg-2: #ebe8e1;
  --ink: #151413;
  --muted: #6e6a64;
  --line: rgba(21, 20, 19, 0.14);
  --frame: #191817;
  --mat: #fbfaf6;
  --header-bg: rgba(243, 241, 236, 0.82);
  --spot: rgba(255, 246, 222, 0.95);
  --shadow: rgba(30, 24, 16, 0.32);
  --cursor-c: rgba(110, 108, 104, 0.55);
  --cursor-blend: multiply;
  --chip-bg: rgba(21, 20, 19, 0.05);

  --serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --sans: "Inter Tight", ui-sans-serif, system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;

  --header-h: 64px;
  --gutter: clamp(16px, 4vw, 56px);
  --ease: cubic-bezier(0.2, 0.7, 0.15, 1);

  color-scheme: light;
}

:root[data-theme="dark"] {
  --bg: #111110;
  --bg-2: #181817;
  --ink: #ece8e1;
  --muted: #8f8a83;
  --line: rgba(236, 232, 225, 0.14);
  --frame: #ebe7e0; /* frames turn white at night */
  --mat: #1c1b1a;
  --header-bg: rgba(17, 17, 16, 0.78);
  --spot: rgba(255, 236, 200, 0.10);
  --shadow: rgba(0, 0, 0, 0.7);
  --cursor-c: rgba(160, 158, 154, 0.5);
  --cursor-blend: screen;
  --chip-bg: rgba(236, 232, 225, 0.06);
  color-scheme: dark;
}

*,
*::before,
*::after { box-sizing: border-box; }

html { scroll-behavior: auto; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background-color 0.5s var(--ease), color 0.5s var(--ease);
}

img { display: block; max-width: 100%; }
figure { margin: 0; }
/* clip sideways overflow (e.g. the enlarged Studio render) at the window edge; `clip` keeps sticky working */
main { overflow-x: clip; }
a { color: inherit; }
button { font: inherit; color: inherit; }

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

.skip {
  position: absolute; left: -9999px; top: 8px; z-index: 200;
  background: var(--ink); color: var(--bg); padding: 8px 14px; text-decoration: none;
}
.skip:focus { left: 8px; }

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

/* ---------- Custom cursor ---------- */
.cursor { display: none; }

@media (hover: hover) and (pointer: fine) {
  html.has-cursor,
  html.has-cursor * { cursor: none !important; }

  html.has-cursor .cursor {
    display: block;
    position: fixed;
    left: 0; top: 0;
    width: 22px; height: 22px;
    margin: -11px 0 0 -11px;
    border-radius: 50%;
    background: var(--cursor-c);
    mix-blend-mode: var(--cursor-blend);
    pointer-events: none;
    z-index: 9999;
    will-change: transform;
    transition: opacity 0.3s ease, background-color 0.5s ease;
  }
  html.has-cursor .cursor.is-hidden { opacity: 0; }
}

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 0 var(--gutter);
  color: #fff;
  transition: color 0.45s var(--ease);
}

.site-header__bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background: var(--header-bg);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--line);
  transform: translateY(-101%);
  transition: transform 0.55s var(--ease), background-color 0.5s var(--ease);
}

.site-header.is-scrolled { color: var(--ink); }
.site-header.is-scrolled .site-header__bg { transform: translateY(0); }

/* header sits over the landing photos before scrolling — add a soft scrim there */
.landing::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 160px;
  background: linear-gradient(rgba(0, 0, 0, 0.42), rgba(0, 0, 0, 0));
  z-index: 1;
  pointer-events: none;
}

.brand {
  --sx: -6px;
  display: inline-flex;
  align-items: center;
  gap: 6.5px; /* + ~1.5px empty margin inside the logo image = 8px visible between S/K and the name */
  text-decoration: none;
  margin-right: auto;
}

.brand__mark {
  width: 34px;
  height: 34px;
  /* Always white with a thin black outline, in every state (over photos, day, night).
     The logo file is black on transparent, so invert(1) makes it white; four 0.6px black
     drop-shadows draw the outline; three stacked dark-grey ones add the 3D edge; the last is
     a crisp cast shadow that slides left → right with scroll (--sx). */
  filter: invert(1)
    drop-shadow(0.6px 0 0 #000) drop-shadow(-0.6px 0 0 #000)
    drop-shadow(0 0.6px 0 #000) drop-shadow(0 -0.6px 0 #000)
    drop-shadow(0.6px 0.6px 0 #3a3a3a)
    drop-shadow(0.6px 0.6px 0 #2a2a2a)
    drop-shadow(0.6px 0.6px 0 #1a1a1a)
    drop-shadow(var(--sx) 3px 0.8px rgba(0, 0, 0, 0.4));
}

.brand__name {
  font-family: var(--serif);
  font-style: italic;
  /* follows the header colour (white over the photos, black once the header shows) */
  font-size: 30px;
  line-height: 1;
  letter-spacing: 0.005em;
  white-space: nowrap;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(18px, 2.6vw, 38px);
}

.nav a {
  position: relative;
  font-size: 20px;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  padding: 6px 0;
}

.nav a::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 1px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s var(--ease);
}
.nav a:hover::after,
.nav a.is-current::after { transform: scaleX(1); transform-origin: left; }

.header-actions { display: flex; align-items: center; gap: 10px; }

.theme-toggle {
  display: grid;
  place-items: center;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid currentColor;
  border-color: color-mix(in srgb, currentColor 35%, transparent);
  background: transparent;
  padding: 0;
  transition: border-color 0.3s ease, transform 0.5s var(--ease);
}
.theme-toggle:hover { border-color: currentColor; }
.theme-toggle:active { transform: rotate(-25deg) scale(0.94); }
.theme-toggle svg {
  width: 18px; height: 18px;
  fill: none; stroke: currentColor; stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
}
.theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

.menu-toggle {
  display: none;
  width: 38px; height: 38px;
  border: 0; background: transparent; padding: 0;
  position: relative;
}
.menu-toggle span {
  position: absolute; left: 9px; right: 9px; height: 1.5px; background: currentColor;
  transition: transform 0.4s var(--ease);
}
.menu-toggle span:first-child { top: 15px; }
.menu-toggle span:last-child { top: 22px; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* ---------- Landing (three pictures) ---------- */
.landing {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  height: 100vh;
  height: 100svh;
  min-height: 520px;
  overflow: hidden;
  background: #000;
}

/* each picture lives in a frame that can grow past its own column */
.landing__pic {
  position: relative;
  z-index: 1; /* while hovering, JS layers: current 3, the one shrinking back 2, others 1 */
}

.landing__frame {
  position: absolute;
  top: 0; bottom: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  pointer-events: none; /* hover follows the original thirds, not the widened picture */
  box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6);
  transition: left 0.85s var(--ease), width 0.85s var(--ease), box-shadow 0.85s var(--ease);
}

.landing__pic img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.08);
  clip-path: inset(100% 0 0 0);
  transition: transform 2.2s var(--ease), clip-path 1.4s var(--ease), filter 0.85s var(--ease);
}
.landing__pic:nth-child(2) img { transition-delay: 0.12s, 0.12s, 0s; }
.landing__pic:nth-child(3) img { transition-delay: 0.24s, 0.24s, 0s; }
.is-loaded .landing__pic img { transform: scale(1); clip-path: inset(0 0 0 0); }

/* hover: the picture widens over its neighbours */
@media (hover: hover) and (min-width: 861px) {
  .landing__pic:hover .landing__frame {
    width: 130%;
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.6), 0 0 80px 10px rgba(0, 0, 0, 0.55);
  }
  .landing__pic:nth-child(2):hover .landing__frame { left: -15%; }
  .landing__pic:nth-child(3):hover .landing__frame { left: -30%; }
  .landing:hover .landing__pic:not(:hover) img { filter: brightness(0.6) saturate(0.8); }
}

/* ---------- Generic section bits ---------- */
.section { padding: clamp(96px, 16vh, 180px) var(--gutter); }

.section-title {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  margin: 0 0 clamp(48px, 9vh, 96px);
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(40px, 5.2vw, 72px);
  line-height: 1;
  letter-spacing: -0.01em;
}
.section-title .dot {
  width: 6px; height: 6px; border-radius: 50%; background: currentColor; flex: none;
}

.eyebrow {
  margin: 0 0 22px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(26px, 2.6vw, 34px);
  line-height: 1.1;
}

.lead {
  font-family: var(--serif);
  font-size: clamp(26px, 2.6vw, 38px);
  line-height: 1.18;
  letter-spacing: -0.005em;
  margin: 0 0 24px;
}

/* reveal on scroll */
html.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 1s var(--ease), transform 1.1s var(--ease);
}
html.js .reveal.is-in { opacity: 1; transform: none; }

/* typewriter */
.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;
}
.tw-ch { opacity: 0; }
.tw-ch.on { opacity: 1; }

/* ---------- The Studio ---------- */
.studio {
  display: grid;
  /* two equal halves, so the gap between text and render sits on the page's centre line */
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(16px, 2vw, 32px);
  max-width: 1560px;
  margin: 0 auto;
}

.studio__img img {
  /* 1.5x the column. The cube starts 10.2% into the PNG, so pull the image left
     by 5.1% of the column to keep the cube's edge (and the centred gap) in place. */
  width: 150%;
  max-width: none;
  margin-left: -5.1%;
  height: auto;
  /* transparent PNG (studio-cutout.png): no blend trick needed, so no white flash
     while the figure fades in */
}
.studio__img .studio__img-night { display: none; }
:root[data-theme="dark"] .studio__img .studio__img-day { display: none; }
:root[data-theme="dark"] .studio__img .studio__img-night { display: block; }

.studio__text {
  order: -1; /* text on the left, render on the right */
  justify-self: end;
  max-width: 620px; /* hug the centre line */
  border-left: 1px solid var(--ink);
  padding-left: clamp(20px, 2.4vw, 36px);
}
.studio__text p:not(.lead) { color: var(--muted); max-width: 46ch; margin: 0; font-size: 17px; }

/* ==========================================================================
   Gallery — a horizontal museum wall driven by vertical scroll
   ========================================================================== */

.gallery {
  position: relative;
  overflow-x: clip; /* spotlights extend past frames; clip (not hidden) keeps sticky working */
  background: var(--bg-2);
  transition: background-color 0.5s var(--ease);
  --wall-h: clamp(300px, calc(100svh - 310px), 640px);
  --gap: clamp(34px, 4.6vh, 48px);
  --row-h: calc((var(--wall-h) - var(--gap)) / 2);
  --mat-pad: clamp(8px, 1.1vh, 14px);
}

.gallery__sticky {
  position: sticky;
  top: 0;
  height: 100vh;
  height: 100svh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.gallery__head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  padding: calc(var(--header-h) + 20px) var(--gutter) 0;
}

.gallery__head .section-title {
  margin: 0;
  font-size: clamp(34px, 3.6vw, 52px);
}

/* one row: centred when it fits, scrolls sideways when it doesn't (auto margins keep both ends reachable) */
.filters {
  display: flex;
  flex-wrap: nowrap;
  gap: 6px;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
}
.filters::-webkit-scrollbar { display: none; }
.filters > :first-child { margin-left: auto; }
.filters > :last-child { margin-right: auto; }

.chip {
  display: inline-flex;
  align-items: center;
  flex: none;
  gap: 7px;
  height: 32px;
  padding: 0 11px 0 4px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--chip-bg);
  font-size: 12.5px;
  font-weight: 500;
  white-space: nowrap;
  transition: background-color 0.35s var(--ease), color 0.35s var(--ease), border-color 0.35s var(--ease);
}
.chip:hover { border-color: var(--ink); }
.chip__thumb {
  width: 22px; height: 22px; border-radius: 50%;
  object-fit: cover;
  filter: grayscale(1);
  transition: filter 0.4s ease;
}
.chip.is-current { background: var(--ink); color: var(--bg); border-color: var(--ink); }
.chip.is-current .chip.is-current .chip__thumb,
.chip:hover .chip__thumb { filter: none; }

.gallery__viewport {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.wall {
  display: flex;
  align-items: center;
  gap: clamp(110px, 10vw, 180px);
  padding: 0 calc(var(--gutter) + 2vw);
  width: max-content;
  will-change: transform;
}

.room {
  display: flex;
  align-items: flex-end;
  gap: var(--gap);
  height: var(--wall-h);
  scroll-margin: 0 20vw;
  position: relative;
}

/* wall seam between rooms */
.room + .room::before {
  content: "";
  position: absolute;
  left: calc(-1 * clamp(60px, 6vw, 110px));
  top: -12vh; bottom: -12vh;
  width: 1px;
  background: linear-gradient(transparent, var(--line) 20%, var(--line) 80%, transparent);
}

/* museum wall label */
.placard {
  width: 210px;
  flex: none;
  align-self: flex-start;
  padding-top: 4px;
}
.placard__no {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  margin-bottom: 14px;
}
.placard__name {
  margin: 0 0 10px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: 40px;
  line-height: 1;
}
.placard__meta {
  margin: 0 0 18px;
  font-size: 13px;
  line-height: 1.5;
  color: var(--muted);
}
.placard__meta span { display: block; }
.placard__btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0;
  border: 0;
  background: none;
  font-size: 13px;
  font-weight: 500;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}
.placard__btn::after { content: "→"; transition: transform 0.35s var(--ease); }
.placard__btn:hover::after { transform: translateX(4px); }

/* one row: every photo hangs at the same height as the render */
.room__photos {
  display: flex;
  gap: var(--gap);
  align-items: flex-end;
}

/* framed artwork */
.frame {
  position: relative;
  display: block;
  padding: var(--mat-pad);
  border: 0;
  background: var(--mat);
  box-shadow:
    0 0 0 3px var(--frame),
    0 22px 34px -20px var(--shadow),
    0 4px 10px -6px var(--shadow);
  transition: top 0.6s var(--ease), box-shadow 0.6s var(--ease), background-color 0.5s var(--ease);
}
.frame:hover { top: -5px; } /* `top`, not transform: a transform made the spotlight glow paint over the frame above */

/* gallery spotlight */
.frame::before {
  content: "";
  position: absolute;
  left: -30%; right: -30%;
  top: -46%;
  height: 70%;
  background: radial-gradient(ellipse 50% 60% at 50% 0%, var(--spot), transparent 72%);
  pointer-events: none;
  z-index: -1;
  opacity: 0.9;
  transition: opacity 0.7s var(--ease);
}

.frame img {
  height: calc(var(--wall-h) - 2 * var(--mat-pad) - 6px);
  width: auto;
  max-width: none;
  object-fit: cover;
  background: var(--bg-2);
  transition: filter 0.9s var(--ease), opacity 0.9s var(--ease);
}
.frame img {
  max-width: min(44vw, 760px); /* very wide images are cropped to keep the wall walkable */
}

/* transparent render: show it whole (no side crop), sitting on the page colour */
.frame--cutout { background: var(--bg-2); }
.frame--cutout img { object-fit: contain; background: transparent; max-width: none; } /* full width at wall height: nothing cropped */

.frame__cap {
  position: absolute;
  left: 0;
  top: calc(100% + 11px);
  display: flex;
  gap: 8px;
  font-size: 11.5px;
  line-height: 1.2;
  white-space: nowrap;
  color: var(--muted);
}
.frame__cap b { font-weight: 600; color: var(--ink); font-variant-numeric: tabular-nums; }
.frame__cap i { font-family: var(--serif); font-size: 14px; color: var(--ink); }


.gallery__floor {
  position: relative;
  height: 1px;
  margin: 0 var(--gutter) 30px;
  background: var(--line);
}
.floor__progress {
  position: absolute;
  inset: 0 auto 0 0;
  width: 100%;
  background: var(--ink);
  transform-origin: left;
  transform: scaleX(0);
}

/* ==========================================================================
   Methodology — zig-zag steps joined by a dotted path (as on the current site)
   ========================================================================== */

.steps {
  list-style: none;
  margin: 0 auto;
  padding: 0;
  max-width: 1180px;
}

.step {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  align-items: center;
  column-gap: clamp(16px, 2.4vw, 32px);
}

.step__media { grid-column: 1 / span 6; position: relative; }
.step__text { grid-column: 7 / span 5; }
.step--right .step__media { grid-column: 7 / span 6; grid-row: 1; }
.step--right .step__text { grid-column: 2 / span 5; grid-row: 1; text-align: right; }

.step__media img {
  width: 100%;
  height: auto;
  border-radius: 2px;
  box-shadow: 0 18px 34px -24px var(--shadow);
}

.step__media--swap { aspect-ratio: 1600 / 665; }
.step__media--swap img { position: absolute; inset: 0; height: 100%; object-fit: cover; transition: opacity 1.2s ease; }
.step__media--swap img:last-child { opacity: 0; }
.step__media--swap.is-swapped img:last-child { opacity: 1; }

.step__media--pair,
.step__media--trio {
  display: grid;
  gap: 10px;
  align-items: end;
}
.step__media--pair { grid-template-columns: 4fr 2.25fr; }
.step__media--trio { grid-template-columns: 2.25fr 2.25fr 4fr; }

.step__text h3 {
  margin: 0 0 14px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(26px, 2.3vw, 34px);
  line-height: 1.1;
}
.step__text p { margin: 0; color: var(--muted); font-size: 16px; }
.step--left .step__text { border-left: 1px solid var(--ink); padding-left: clamp(18px, 2vw, 28px); }
.step--right .step__text { border-right: 1px solid var(--ink); padding-right: clamp(18px, 2vw, 28px); }

.step-link {
  position: relative;
  height: clamp(70px, 11vh, 120px);
  margin: 18px 0;
}
/* dots are drawn by JS (initDots) so every corner lands exactly on a dot
   and the spacing stays even on every segment */
.step-link svg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}
.step-link circle { fill: var(--ink); transition: fill 0.5s var(--ease); }

/* ---------- About ---------- */
.about__body { max-width: 1180px; margin: 0 auto; }
.about .lead { max-width: 22ch; font-size: clamp(34px, 4.4vw, 64px); line-height: 1.04; margin-bottom: clamp(36px, 6vh, 64px); }
.about__cols {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(24px, 3vw, 48px);
  border-top: 1px solid var(--line);
  padding-top: 28px;
}
.about__cols p { margin: 0; color: var(--muted); }

/* orange highlighter — swept in one phrase at a time (see initHighlights) */
:root { --hl: #8f3511; --hl-bg: rgba(226, 104, 34, 0.17); } /* deep burnt orange text for contrast in day mode */
:root[data-theme="dark"] { --hl: #ff8a3d; --hl-bg: rgba(255, 138, 61, 0.16); }
mark.hl {
  color: inherit;
  background-color: transparent;
  background-image: linear-gradient(var(--hl-bg), var(--hl-bg));
  background-repeat: no-repeat;
  background-position: 0 0;
  background-size: 0% 100%;
  padding: 0.04em 0.1em;
  margin: 0 -0.1em;
  border-radius: 3px;
  transition: background-size 1s var(--ease), color 0.7s ease 0.15s;
}
mark.hl.is-lit { background-size: 100% 100%; color: var(--hl); }
html:not(.js) mark.hl { background-size: 100% 100%; color: var(--hl); }

/* ---------- Contact ---------- */
.contact { background: var(--bg-2); transition: background-color 0.5s var(--ease); }
.contact__body { max-width: 1180px; margin: 0 auto; text-align: center; }
.contact__lead {
  font-family: var(--serif);
  font-size: clamp(24px, 2.4vw, 34px);
  line-height: 1.25;
  margin: 0 0 clamp(40px, 7vh, 72px);
}
.contact__label { margin: 0 0 6px; font-size: 13px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); }
.contact__email {
  position: relative;
  display: inline-block;
  font-family: var(--serif);
  font-style: italic;
  font-size: clamp(40px, 8vw, 120px);
  line-height: 1.05;
  text-decoration: none;
  letter-spacing: -0.02em;
}
.contact__email::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0.08em;
  height: 2px; background: currentColor;
  transform-origin: left;
  transform: scaleX(0);
  transition: transform 0.7s var(--ease);
}
.contact__email:hover::after { transform: scaleX(1); }

/* ---------- Footer & back to top ---------- */
.site-footer {
  display: flex;
  justify-content: flex-start;
  gap: 6px;
  padding: 22px var(--gutter);
  font-size: 12px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  background: var(--bg-2);
}

.back-to-top {
  position: fixed;
  right: var(--gutter);
  bottom: 22px;
  z-index: 90;
  font-family: var(--serif);
  font-style: italic;
  font-size: 16px;
  text-decoration: none;
  padding: 6px 0 6px 12px;
  border-left: 1px solid currentColor;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s var(--ease);
}
.back-to-top.is-visible { opacity: 1; pointer-events: auto; transform: none; }

/* ==========================================================================
   Piece detail dialog
   ========================================================================== */

.piece {
  width: min(1180px, 100vw - 32px);
  max-width: none;
  max-height: calc(100svh - 48px);
  padding: 0;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  overflow: auto;
  overscroll-behavior: contain;
}
.piece::backdrop {
  background: rgba(10, 10, 9, 0.6);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}
/* no transform on the dialog itself, so the fixed cursor inside it stays aligned */
.piece[open] { animation: piece-fade 0.45s ease; }
.piece[open] .piece__inner { animation: piece-rise 0.6s var(--ease); }
@keyframes piece-fade { from { opacity: 0; } }
@keyframes piece-rise { from { transform: translateY(24px); } }

.piece__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 0 clamp(24px, 4vw, 64px);
  padding: clamp(24px, 4vw, 56px);
}
.piece__bar {
  position: sticky;
  top: 0;
  height: 0;
  z-index: 5;
}
.piece__close {
  position: absolute;
  top: 18px;
  right: 18px;
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--bg);
  font-size: 24px;
  line-height: 1;
  z-index: 2;
}
.piece__close:hover { border-color: var(--ink); }
.piece__head { grid-column: 1; }
.piece__index { margin: 0 0 12px; font-size: 12px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--muted); }
.piece__title {
  margin: 0 0 12px;
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  font-size: clamp(40px, 5vw, 72px);
  line-height: 0.98;
}
.piece__meta { margin: 0 0 28px; font-size: 14px; color: var(--muted); }
/* start level with the title: skip the "No. 01" line (12px × 1.6 line-height + 12px gap) */
.piece__text { grid-column: 2; grid-row: 1 / span 2; margin-top: calc(12px * 1.6 + 12px); }
.piece__text p { margin: 0 0 14px; font-family: var(--serif); font-size: clamp(20px, 1.8vw, 25px); line-height: 1.32; }
.piece__inquiry { grid-column: 1; margin: 0 0 8px; font-size: 14px; color: var(--muted); max-width: 34ch; }
.piece__inquiry a { color: var(--ink); }
.piece__sub {
  grid-column: 1 / -1;
  margin: clamp(32px, 5vh, 56px) 0 18px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
}
.piece__grid { grid-column: 1 / -1; columns: 3 260px; column-gap: 14px; }
.piece__grid figure {
  position: relative;
  break-inside: avoid;
  margin: 0 0 14px;
}
.piece__grid img { width: 100%; height: auto; }
/* render on the left with two images filling the space under it; two tall photos beside */
.piece__grid--fill {
  columns: auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  grid-template-rows: auto 1fr;
  gap: 14px;
}
.piece__grid--fill figure { margin: 0; }
.piece__grid--fill > :nth-child(1) { grid-column: 1; grid-row: 1; }
.piece__grid--fill > :nth-child(2) { grid-column: 1; grid-row: 2; }
.piece__grid--fill > :nth-child(3) { grid-column: 2; grid-row: 1 / 3; }
.piece__grid--fill > :nth-child(4) { grid-column: 3; grid-row: 1 / 3; }
.piece__pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.piece__pair img { width: 100%; height: 100%; object-fit: cover; }

.piece__below {
  grid-column: 1 / -1;
  margin-top: 14px; /* same gap as between the photos above */
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 14px;
}
.piece__below:empty { display: none; }
.piece__below figure { margin: 0; }
.piece__below img { width: 100%; height: auto; aspect-ratio: 1; object-fit: cover; }

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1100px) {
  .gallery__head { gap: 12px 20px; }
}

@media (max-width: 860px) {
  :root { --header-h: 58px; }

  .menu-toggle { display: block; }
  .nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 14px var(--gutter) 22px;
    background: var(--header-bg);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    color: var(--ink);
    transform: translateY(-8px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.35s ease, transform 0.35s var(--ease), visibility 0.35s;
  }
  .nav.is-open { opacity: 1; transform: none; visibility: visible; }
  .nav a { font-family: var(--serif); font-style: italic; font-weight: 400; font-size: 28px; }
  .brand__name { font-size: 26px; }
  .brand__mark { width: 30px; height: 30px; }

  .landing {
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1.35fr 1fr;
  }
  .landing__pic:first-child { grid-column: 1 / -1; }
  .landing__pic:nth-child(2) { border-left: 0; border-top: 1px solid rgba(0, 0, 0, 0.6); }
  .landing__pic:nth-child(3) { border-top: 1px solid rgba(0, 0, 0, 0.6); }

  .studio { grid-template-columns: 1fr; }
  .studio__img img { width: 100%; margin-left: 0; }

  /* gallery becomes a vertical walk-through */
  .gallery { height: auto !important; --row-h: auto; }
  .gallery__sticky { position: static; height: auto; overflow: visible; }
  .gallery__head {
    position: sticky;
    top: var(--header-h);
    z-index: 5;
    padding: 16px var(--gutter) 14px;
    background: var(--bg-2);
    border-bottom: 1px solid var(--line);
  }
  .gallery__head .section-title { font-size: 34px; }
  /* phones: every filter on screen, wrapped onto centred rows */
  .filters {
    flex-wrap: wrap;
    justify-content: center;
    overflow: visible;
    gap: 5px;
  }
  .filters > :first-child,
  .filters > :last-child { margin: 0; }
  .chip { height: 28px; padding: 0 9px 0 3px; gap: 5px; font-size: 11.5px; }
  .chip__thumb { width: 20px; height: 20px; }

  /* TEMPORARY (phones only): Methodology section and its menu link are hidden.
     Delete these two rules to bring it back. */
  #methodology,
  .nav a[href="#methodology"] { display: none; }
  .gallery__viewport { display: block; overflow: visible; }
  .wall {
    flex-direction: column;
    align-items: stretch;
    gap: 72px;
    width: auto;
    padding: 48px var(--gutter) 72px;
    transform: none !important;
  }
  .room {
    flex-direction: column;
    align-items: stretch;
    height: auto;
    gap: 22px;
    scroll-margin-top: 190px;
  }
  .room + .room::before {
    left: 0; right: 0; top: -36px; bottom: auto; width: auto; height: 1px;
    background: var(--line);
  }
  .placard { width: auto; order: -1; align-self: stretch; }
  .placard__name { font-size: 36px; }
  .room__photos {
    display: grid;
    grid-template-rows: none;
    grid-auto-flow: row;
    grid-template-columns: 1fr 1fr;
    gap: 34px 14px;
    align-items: start;
  }
  .frame img,
  .frame--cover img { width: 100%; height: auto; max-width: 100%; }
  .frame { --mat-pad: 6px; }
  .frame:hover { top: 0; }
  .frame__cap { position: static; margin-top: 10px; flex-wrap: wrap; gap: 4px 8px; white-space: normal; }
  .gallery__floor { display: none; }

  .step,
  .step--right { grid-template-columns: 1fr; row-gap: 22px; }
  .step__media,
  .step__text,
  .step--right .step__media,
  .step--right .step__text { grid-column: 1; grid-row: auto; }
  .step--right .step__text {
    text-align: left;
    border-right: 0;
    border-left: 1px solid var(--ink);
    padding-right: 0;
    padding-left: 18px;
  }
  .step-link { height: 64px; margin: 12px 0; }

  .about__cols { grid-template-columns: 1fr; }

  .piece__inner { grid-template-columns: 1fr; }
  .piece__text,
  .piece__inquiry { grid-column: 1; grid-row: auto; }
  .piece__text { margin-top: 0; }
  .piece__grid { columns: 2 140px; }
  .piece__grid--fill { grid-template-columns: 1fr 1fr; grid-template-rows: none; }
  .piece__grid--fill > :nth-child(n) { grid-column: auto; grid-row: auto; }
  .piece__grid--fill > :nth-child(1),
  .piece__grid--fill > :nth-child(2) { grid-column: 1 / -1; }

  .back-to-top { bottom: 14px; font-size: 14px; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  .landing__pic img { transform: none; clip-path: none; }
  html.js .reveal { opacity: 1; transform: none; }
}