/* ============================================================
   NS Photography — Immersive experience (July 2026)
   WebGL-backed photography + scroll-driven CSS.
   Layering: body bg < #gl canvas (z1) < .page (z2) < noise (25)
             < header/progress (30) < preloader (50) < cursor (60)
   ============================================================ */

:root {
  --bg: oklch(97.9% 0.004 95);
  --ink: oklch(21% 0.005 270);
  --bg-dark: oklch(15% 0.014 285);
  --ink-dark: oklch(92.5% 0.014 85);
  --accent: oklch(76% 0.09 60);

  --serif: "Instrument Serif", "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, sans-serif;

  --pad: clamp(20px, 4vw, 56px);
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-io: cubic-bezier(0.83, 0, 0.17, 1);

  --hair: color-mix(in oklch, currentColor 16%, transparent);
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  /* no visible scrollbar — the top progress hairline marks position */
  scrollbar-width: none;
}

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

body {
  margin: 0;
  font-family: var(--sans);
  background: var(--bg);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
  transition: background-color 0.9s var(--ease), color 0.9s var(--ease);
  overflow-x: clip;
}

body.is-dark {
  background: var(--bg-dark);
  color: var(--ink-dark);
}

::selection {
  background: color-mix(in oklch, var(--accent) 45%, transparent);
}

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

a { color: inherit; }

/* filmic noise over everything except chrome */
body::after {
  content: "";
  position: fixed;
  inset: -50%;
  z-index: 25;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='240'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.032;
}

/* ---------- WebGL canvas ---------- */

#gl {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
}

.page {
  position: relative;
  z-index: 2;
}

/* Photography frames: DOM <img> is the layout + fallback;
   once WebGL is live the img fades out and the canvas takes over. */
[data-gl] {
  position: relative;
  overflow: hidden;
  margin: 0;
}

[data-gl] img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

html:not(.gl-active) [data-gl] {
  background: color-mix(in oklch, var(--ink) 8%, var(--bg));
}

html.gl-active [data-gl] img {
  opacity: 0;
}

/* When GL is off (touch devices, or no WebGL) the DOM images render
   directly — fully static, with a scroll-linked fade-in only.
   The twilight night-img keeps its own crossfade rule (more specific). */
@supports (animation-timeline: view()) {
  /* .night-img is excluded: its opacity belongs to the crossfade
     transition, and an animation here would override it */
  html:not(.gl-active) [data-gl] img:not(.night-img) {
    animation: img-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 70%;
  }
  @keyframes img-fade {
    from { opacity: 0; }
  }
}

/* ---------- header ---------- */

.hdr {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 30;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 26px var(--pad);
  color: #fff;
  mix-blend-mode: difference;
  opacity: 0;
  translate: 0 -8px;
  transition: opacity 1s var(--ease) 0.7s, translate 1s var(--ease) 0.7s;
}

html.is-loaded .hdr {
  opacity: 1;
  translate: 0 0;
}

.hdr__logo {
  font-size: 12px;
  letter-spacing: 3px;
  font-weight: 500;
  text-decoration: none;
}

.hdr__nav {
  display: flex;
  gap: clamp(18px, 3vw, 34px);
  font-size: 11px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.hdr__nav a {
  text-decoration: none;
  opacity: 0.72;
  transition: opacity 0.3s;
}

.hdr__nav a:hover { opacity: 1; }

.hdr__nav a.hdr__cta {
  opacity: 1;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}

@supports (animation-timeline: scroll()) {
  .hdr {
    animation: hdr-shrink linear both;
    animation-timeline: scroll(root);
    animation-range: 0 240px;
  }
  @keyframes hdr-shrink {
    to { padding-block: 14px; }
  }
}

/* ---------- preloader ---------- */

.preloader {
  position: fixed;
  inset: 0;
  z-index: 50;
  background: var(--bg);
  display: grid;
  place-items: center;
}

.preloader__logo {
  font-size: 12px;
  letter-spacing: 6px;
  margin: 0;
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse { 50% { opacity: 0.35; } }

.preloader__count {
  position: absolute;
  right: var(--pad);
  bottom: 2vh;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(5rem, 14vw, 12rem);
  line-height: 1;
  font-variant-numeric: tabular-nums;
  color: color-mix(in oklch, var(--ink) 22%, transparent);
}

html.is-loaded .preloader {
  clip-path: inset(0 0 100% 0);
  transition: clip-path 1s var(--ease-io) 0.15s;
  pointer-events: none;
}

/* ---------- hero ---------- */

.hero {
  position: relative;
  height: 100svh;
  min-height: 560px;
}

.hero__media {
  position: absolute;
  inset: 0;
}

/* very slight flat grey wash — just enough for the type, keeps the whites.
   The photo appears alone first; the wash fades in with the text. */
.hero__scrim {
  position: absolute;
  inset: 0;
  background: oklch(20% 0 0 / 0.16);
  opacity: 0;
  transition: opacity 1.4s var(--ease) 1s;
  pointer-events: none;
}

html.is-loaded .hero__scrim {
  opacity: 1;
}

.hero__content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding: var(--pad);
  color: #fff;
}

.hero__title {
  /* sits above the windows in the hero photo, clear of the header */
  margin: clamp(80px, 13svh, 150px) 0 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(3.4rem, 11vw, 10.5rem);
  line-height: 0.96;
  letter-spacing: -0.015em;
}

.hero__title .line {
  display: block;
  overflow: hidden;
  /* keep serif descenders (g, y) unclipped despite the tight line-height */
  padding-bottom: 0.16em;
  margin-bottom: -0.16em;
}

.hero__title .line > span {
  display: block;
  translate: 0 112%;
  transition: translate 1.25s var(--ease);
}

html.is-loaded .hero__title .line:nth-child(1) > span { translate: 0 0; transition-delay: 1.05s; }
html.is-loaded .hero__title .line:nth-child(2) > span { translate: 0 0; transition-delay: 1.18s; }

.hero__foot {
  margin-top: auto;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  border-top: 1px solid oklch(100% 0 0 / 0.28);
  padding-top: 20px;
  opacity: 0;
  transition: opacity 1.2s var(--ease) 1.55s;
}

html.is-loaded .hero__foot { opacity: 1; }

.hero__coords {
  margin: 0;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  opacity: 0.85;
  text-align: left;
}

.hero__scrollcue {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  font-size: 10px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  opacity: 0.85;
}

.hero__scrollcue i {
  width: 1px;
  height: 44px;
  background: oklch(100% 0 0 / 0.35);
  position: relative;
  overflow: hidden;
}

.hero__scrollcue i::after {
  content: "";
  position: absolute;
  inset: 0;
  background: #fff;
  animation: cue-drop 2.1s var(--ease-io) infinite;
}

@keyframes cue-drop {
  0% { transform: translateY(-100%); }
  55%, 100% { transform: translateY(100%); }
}

/* ---------- manifesto: scroll-fill type ---------- */

.manifesto {
  padding: clamp(140px, 26vh, 300px) var(--pad);
  display: flex;
  justify-content: center;
}

.fill-text {
  margin: 0;
  max-width: 20ch;
  font-family: var(--serif);
  font-size: clamp(2.5rem, 6.6vw, 6rem);
  line-height: 1.14;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

@supports (animation-timeline: view()) {
  .fill-text {
    color: transparent;
    background-image:
      linear-gradient(var(--ink), var(--ink)),
      linear-gradient(
        color-mix(in oklch, var(--ink) 16%, transparent),
        color-mix(in oklch, var(--ink) 16%, transparent)
      );
    background-repeat: no-repeat;
    background-size: 100% 0%, 100% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    animation: text-fill linear both;
    animation-timeline: view();
    animation-range: cover 8% cover 52%;
  }
  @keyframes text-fill {
    to { background-size: 100% 100%, 100% 100%; }
  }
}

/* ---------- generic scroll reveals ---------- */

@supports (animation-timeline: view()) {
  .reveal {
    animation: rise 1s var(--ease) both;
    animation-timeline: view();
    animation-range: entry 0% cover 26%;
  }
  @keyframes rise {
    from { opacity: 0; translate: 0 3rem; }
  }

  /* touch devices: no positional motion — text fades in place */
  @media (pointer: coarse) {
    .reveal { animation-name: fade-only; }
  }
  @keyframes fade-only {
    from { opacity: 0; }
  }
}

/* ---------- work section ---------- */

.work {
  padding: 0 var(--pad);
  display: flex;
  flex-direction: column;
  gap: clamp(60px, 10vh, 140px);
}

.work__head {
  display: flex;
  align-items: baseline;
  gap: clamp(16px, 3vw, 40px);
  border-top: 1px solid var(--hair);
  padding-top: 22px;
}

.work__head h2 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.4rem, 6vw, 5rem);
  letter-spacing: -0.01em;
}

.row { position: relative; }

.row--feature {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 3vw;
  align-items: center;
}

.frame--portrait {
  grid-column: 2 / 7;
  aspect-ratio: 4 / 5;
}

.row__text {
  grid-column: 8 / 12;
}

.row__label {
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  opacity: 0.45;
  margin: 0 0 18px;
}

/* label sitting above a full-bleed image: re-align to the content edge */
.row__label--bleed {
  padding-inline: var(--pad);
  margin-bottom: 26px;
}

.row__quote {
  margin: 0 0 18px;
  font-family: var(--serif);
  font-size: clamp(1.7rem, 2.6vw, 2.6rem);
  line-height: 1.2;
}

.row__body {
  margin: 0;
  font-size: 13px;
  line-height: 1.75;
  opacity: 0.6;
  max-width: 34ch;
}

.row--bleed {
  margin-inline: calc(-1 * var(--pad));
}

.frame--cinema {
  aspect-ratio: 21 / 10;
}

.row--pair {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3vw;
  align-items: start;
}

.frame--land {
  aspect-ratio: 3 / 2;
}

.row--wide .frame--cinema {
  aspect-ratio: 16 / 9;
  width: min(100%, 1500px);
  margin-inline: auto;
}

.big-num {
  position: absolute;
  top: -0.35em;
  left: -0.05em;
  z-index: 3;
  font-family: var(--serif);
  font-size: clamp(6rem, 15vw, 14rem);
  line-height: 1;
  color: transparent;
  -webkit-text-stroke: 1px color-mix(in oklch, currentColor 40%, transparent);
  pointer-events: none;
}

.big-num--right {
  left: auto;
  right: 0;
  top: auto;
  bottom: -0.4em;
}

/* ---------- horizontal walkthrough ---------- */

/* flows straight on from the work rows above — no header, modest gap */
.hscroll {
  position: relative;
  margin-top: clamp(60px, 10vh, 140px);
}

/* floating scroll cue: a frosted chevron over the right of the strip,
   vertically centred on the photos, that fades once the strip moves */
.hscroll__cue-wrap {
  position: absolute;
  top: 0;
  bottom: 0;
  right: clamp(14px, 3.5vw, 44px);
  display: flex;
  align-items: center;
  z-index: 4;
  pointer-events: none;
  transition: opacity 0.6s var(--ease);
}

.hscroll.is-scrolled .hscroll__cue-wrap {
  opacity: 0;
}

.hscroll__cue {
  pointer-events: auto;
  width: clamp(50px, 8vw, 62px);
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid oklch(100% 0 0 / 0.6);
  background: oklch(20% 0 0 / 0.4);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  color: #fff;
  display: grid;
  place-items: center;
  padding: 0;
  cursor: pointer;
  animation: cue-nudge 2.2s var(--ease) infinite;
  transition: background 0.3s var(--ease), scale 0.3s var(--ease);
}

.hscroll__cue:hover {
  background: oklch(20% 0 0 / 0.62);
  scale: 1.06;
}

.hscroll__cue:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 3px;
}

.hscroll__cue svg {
  width: 42%;
  height: 42%;
}

@keyframes cue-nudge {
  0%, 100% { transform: translateX(0); }
  50% { transform: translateX(7px); }
}

/* native swipe/drag strip — never captures vertical scrolling */
.hscroll__track {
  display: flex;
  gap: 3vw;
  padding-inline: var(--pad);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  scrollbar-width: none;
  cursor: grab;
}

.hscroll__track:active { cursor: grabbing; }

.hscroll__track::-webkit-scrollbar { display: none; }

.panel {
  flex: 0 0 auto;
  width: clamp(300px, 62vw, 1050px);
  aspect-ratio: 3 / 2;
  scroll-snap-align: center;
  user-select: none;
}

.panel img {
  -webkit-user-drag: none;
}

.panel--end {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  gap: 22px;
  width: clamp(260px, 34vw, 520px);
  aspect-ratio: auto;
}

.panel--end p {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(1.8rem, 3.2vw, 3rem);
  line-height: 1.15;
}

.panel--end a {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
}

/* ---------- twilight ---------- */

.twilight {
  margin-top: clamp(50px, 8vh, 110px);
  text-align: center;
}

.chapter {
  font-size: 11px;
  letter-spacing: 3px;
  text-transform: uppercase;
  opacity: 0.5;
  margin: 0 0 3vh;
}

.twilight__title {
  margin: 0 var(--pad) clamp(24px, 4svh, 48px);
  font-family: var(--serif);
  font-weight: 400;
  font-size: clamp(2.6rem, 7.5vw, 6.5rem);
  line-height: 1;
  letter-spacing: -0.015em;
}

.twilight__title em {
  color: var(--accent);
}

/* Day-to-night crossfade: no pin — the transition plays on its own
   (GL uMix on desktop, the .night-on opacity transition otherwise)
   once the photo scrolls into view. */
.frame--dusk {
  height: clamp(320px, 56svh, 640px);
  width: 100%;
}

.frame--dusk img {
  position: absolute;
  inset: 0;
}

.frame--dusk .night-img {
  z-index: 1;
  opacity: 0;
  transition: opacity 2.6s ease-in-out 0.4s;
}

/* DOM crossfade only when GL isn't rendering the scrub itself —
   otherwise this img would fade in over the canvas at a second scale */
html:not(.gl-active) .frame--dusk.night-on .night-img {
  opacity: 1;
}

/* off-screen reset back to day happens as an unanimated snap */
.frame--dusk.night-reset .night-img {
  transition: none;
}

.twilight__copy {
  margin: clamp(20px, 3.5svh, 44px) auto 0;
  max-width: 48ch;
  font-size: 13px;
  line-height: 1.8;
  opacity: 0.65;
  padding-inline: var(--pad);
  text-wrap: balance;
}

/* ---------- services ---------- */

.services {
  margin-top: clamp(70px, 12vh, 160px);
  padding-inline: var(--pad);
}

.svc-list {
  list-style: none;
  margin: clamp(30px, 6vh, 70px) 0 0;
  padding: 0;
}

.svc {
  display: grid;
  grid-template-columns: 70px 1fr 1.1fr;
  align-items: baseline;
  gap: 3vw;
  padding: clamp(26px, 4.5vh, 46px) 0;
  border-top: 1px solid var(--hair);
  transition: padding-left 0.5s var(--ease);
}

.svc:last-child {
  border-bottom: 1px solid var(--hair);
}

.svc:hover {
  padding-left: clamp(10px, 2vw, 28px);
}

.svc__idx {
  font-size: 11px;
  letter-spacing: 2px;
  opacity: 0.45;
}

.svc__name {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  line-height: 1;
}

.svc__desc {
  font-size: 13px;
  line-height: 1.7;
  opacity: 0.6;
  max-width: 44ch;
}

/* ---------- footer ---------- */

.foot {
  margin-top: clamp(80px, 14vh, 180px);
}

/* clickable marquee: Inquire · Next-day delivery, widely spaced, looping */
.marquee {
  display: block;
  border-block: 1px solid var(--hair);
  overflow: hidden;
  padding: clamp(20px, 3.5vh, 34px) 0;
  text-decoration: none;
  color: inherit;
}

.marquee__inner {
  display: flex;
  width: max-content;
  animation: marquee 60s linear infinite;
}

.marquee:hover .marquee__inner {
  animation-play-state: paused;
}

.marquee__half {
  display: inline-flex;
  align-items: baseline;
  gap: clamp(28px, 4vw, 64px);
  padding-right: clamp(28px, 4vw, 64px);
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.6vw, 3rem);
  white-space: nowrap;
}

.marquee__half em {
  font-style: italic;
}

.marquee__half i {
  font-style: normal;
  opacity: 0.35;
}

@keyframes marquee {
  to { transform: translateX(-50%); }
}

.foot__bar {
  display: flex;
  justify-content: center;
  padding: clamp(36px, 6vh, 64px) var(--pad) clamp(30px, 5vh, 48px);
  font-size: 10.5px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.foot__bar span { opacity: 0.45; }

/* ---------- custom cursor ---------- */

.cursor {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 60;
  pointer-events: none;
  mix-blend-mode: difference;
  display: none;
}

@media (pointer: fine) {
  .cursor { display: block; }
}

.cursor__dot {
  position: fixed;
  width: 6px;
  height: 6px;
  margin: -3px 0 0 -3px;
  border-radius: 50%;
  background: #fff;
}

.cursor__ring {
  position: fixed;
  width: 38px;
  height: 38px;
  margin: -19px 0 0 -19px;
  border-radius: 50%;
  border: 1px solid oklch(100% 0 0 / 0.65);
  transition: scale 0.4s var(--ease), opacity 0.4s;
}

.cursor.is-hover .cursor__ring {
  scale: 1.8;
  opacity: 0.9;
}

.cursor.is-hover .cursor__dot {
  scale: 0.5;
}

/* ---------- responsive ---------- */

@media (max-width: 760px) {
  .hdr { padding-block: 20px; }
  .hdr__logo { font-size: 10px; letter-spacing: 2px; white-space: nowrap; }
  .hdr__nav { gap: 14px; font-size: 10px; letter-spacing: 1px; }

  .hero__foot { align-items: flex-start; }

  .row--feature { grid-template-columns: 1fr; gap: 34px; }
  .frame--portrait { grid-column: 1 / -1; }
  .row__text { grid-column: 1 / -1; }

  .row--pair { grid-template-columns: 1fr; gap: 34px; }

  .frame--cinema { aspect-ratio: 4 / 3; }
  .frame--dusk { height: clamp(240px, 42svh, 420px); }

  /* swipe-strip cards: full photo visible, next one peeking at the edge */
  .panel {
    width: 84vw;
    aspect-ratio: 3 / 2;
    height: auto;
  }

  .panel--end { width: 70vw; }

  .svc {
    grid-template-columns: 40px 1fr;
    row-gap: 10px;
  }
  .svc__desc { grid-column: 2; }

  .big-num { font-size: 5.6rem; }
}

/* ---------- reduced motion ---------- */

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

  .marquee__inner { animation: none; }
  .hero__scrollcue i::after { animation: none; }
  .preloader__logo { animation: none; }
  .hscroll__cue { animation: none; }

  .reveal, .fill-text {
    animation: none;
  }

  @supports (animation-timeline: view()) {
    .fill-text {
      color: var(--ink);
      background: none;
    }
  }

  .frame--dusk .night-img { transition: none; }

  .hero__title .line > span,
  .hdr,
  .hero__foot {
    transition-duration: 0.01s;
  }
}