/* ============================================
   QANUK STUDIO — Look closer
   Cinematic zoom-driven single-page experience
   ============================================ */

:root {
  --aqua: #0ABAB5;
  --aqua-soft: #B6F0EE;
  --aqua-deep: #047872;
  --ink: #0A0A0A;
  --ink-soft: #1c1c1c;
  --paper: #FAFAF7;
  --paper-warm: #F2EFE8;
  --grey-200: #E8E6E1;
  --grey-400: #9C9A93;
  --grey-600: #4A4842;
  --serif: 'Instrument Serif', Georgia, serif;
  --sans: 'Poppins', system-ui, -apple-system, sans-serif;
  --tight: -0.045em;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html {
  font-size: 16px;
  scroll-behavior: smooth;
  /* html is the native scroll container — iOS Safari default. */
  background: var(--paper);
}
body {
  margin: 0;
  padding: 0;
  width: 100%;
  /* CRITICAL for position:sticky to work: body MUST NOT have overflow set.
     Any overflow value other than 'visible' creates a new containing block
     that confuses iOS Safari's sticky implementation. */
  font-family: var(--sans);
  font-weight: 500;
  color: var(--ink);
  background: var(--paper);
  letter-spacing: var(--tight);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; letter-spacing: var(--tight); }
a { color: inherit; text-decoration: none; }
em { font-family: var(--serif); font-style: italic; font-weight: 400; letter-spacing: 0; }

/* ============================================
   FIXED CHROME (header) — minimal, ever-present
   ============================================ */
.chrome {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.5rem clamp(1.25rem, 3vw, 2.5rem);
  pointer-events: none;
}
.chrome > * { pointer-events: auto; }
.chrome__logo {
  display: flex; align-items: center; gap: 0.6rem;
  font-weight: 600; font-size: 0.95rem;
  color: var(--ink);
  transition: opacity 0.6s var(--ease);
}
.chrome__mark { width: 22px; height: 22px; color: var(--ink); }
.chrome__mark svg { width: 100%; height: 100%; display: block; }
.chrome__word { letter-spacing: -0.055em; }

.chrome__lang { position: relative; }
.lang-toggle {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.45rem 0.9rem;
  border: 1px solid rgba(10,10,10,0.18);
  border-radius: 999px;
  font-weight: 500; font-size: 0.78rem;
  letter-spacing: 0;
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: border-color 0.3s var(--ease), background 0.3s var(--ease);
}
.lang-toggle:hover { border-color: var(--aqua); }
.lang-menu {
  position: absolute; top: calc(100% + 0.5rem); right: 0;
  list-style: none; min-width: 160px;
  background: rgba(255,255,255,0.95); backdrop-filter: blur(12px);
  border: 1px solid var(--grey-200);
  border-radius: 14px; padding: 0.4rem;
  box-shadow: 0 10px 40px rgba(10,10,10,0.08);
}
.lang-menu li {
  padding: 0.5rem 0.75rem; border-radius: 10px;
  font-size: 0.82rem; letter-spacing: 0; cursor: pointer;
  transition: background 0.2s var(--ease);
}
.lang-menu li:hover { background: var(--grey-200); }
.lang-menu li.is-active { background: var(--aqua); color: #fff; }

/* ============================================
   SCENE DOTS NAV (right edge)
   ============================================ */
.dots {
  position: fixed; top: 50%; right: clamp(1rem, 2.5vw, 2rem);
  transform: translateY(-50%);
  z-index: 40;
  display: flex; flex-direction: column; gap: 1.25rem;
}
.dots__item {
  display: flex; align-items: center; gap: 0.75rem;
  flex-direction: row-reverse;
  opacity: 0.55;
  transition: opacity 0.4s var(--ease);
}
.dots__item:hover, .dots__item.is-active { opacity: 1; }
.dots__dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--ink);
  transition: transform 0.4s var(--ease), background 0.4s var(--ease);
}
.dots__item.is-active .dots__dot {
  background: var(--aqua);
  transform: scale(1.6);
  box-shadow: 0 0 0 4px rgba(10,186,181,0.18);
}
.dots__label {
  font-size: 0.7rem; letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 600;
  opacity: 0;
  transform: translateX(8px);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
  white-space: nowrap;
}
.dots__item:hover .dots__label,
.dots__item.is-active .dots__label { opacity: 1; transform: translateX(0); }

/* ============================================
   PROGRESS BAR (top edge)
   ============================================ */
.progress {
  position: fixed; top: 0; left: 0; right: 0;
  height: 2px; z-index: 60;
  background: transparent;
}
.progress__bar {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--aqua), var(--aqua-deep));
  transition: width 0.1s linear;
}

/* ============================================
   SCROLL HINT (bottom — fades after scroll)
   ============================================ */
.hint {
  position: fixed; bottom: 1.75rem; left: 50%;
  transform: translateX(-50%);
  z-index: 30;
  display: flex; flex-direction: column; align-items: center; gap: 0.5rem;
  font-size: 0.7rem; letter-spacing: 0.18em; text-transform: uppercase;
  font-weight: 600;
  opacity: 0;
  animation: hint-in 1.2s 1s var(--ease-out) forwards;
  pointer-events: none;
}
.hint__line {
  width: 1px; height: 32px;
  background: linear-gradient(180deg, var(--ink), transparent);
  animation: hint-pulse 2.2s infinite var(--ease);
}
.hint.is-hidden { opacity: 0 !important; transition: opacity 0.5s var(--ease); }
@keyframes hint-in { from { opacity: 0; transform: translate(-50%, 12px); } to { opacity: 0.6; transform: translateX(-50%); } }
@keyframes hint-pulse {
  0%, 100% { transform: scaleY(0.4); transform-origin: top; }
  50% { transform: scaleY(1); }
}

/* ============================================
   STAGE — fixed viewport, the camera
   ============================================ */
.stage {
  /* STICKY — not fixed. This is the iOS-safe pattern.
     The stage sticks to top of viewport while .track scrolls past it. */
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh; height: 100dvh;
  overflow: hidden;
  z-index: 1;
}
.scene a,
.scene button,
.scene .pillar,
.scene .service,
.scene .contact__card { pointer-events: auto; }

/* Ambient — soft aurora always behind */
.ambient { position: absolute; inset: 0; pointer-events: none; }
.ambient__layer {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.55;
  mix-blend-mode: multiply;
}
.ambient__layer--aqua {
  top: -20%; left: -10%;
  width: 70vw; height: 70vw;
  background: radial-gradient(circle at 30% 30%, var(--aqua-soft), transparent 65%);
  animation: drift1 22s infinite alternate var(--ease);
}
.ambient__layer--ink {
  bottom: -20%; right: -10%;
  width: 60vw; height: 60vw;
  background: radial-gradient(circle, rgba(10,10,10,0.06), transparent 70%);
  animation: drift2 28s infinite alternate var(--ease);
}
.ambient__layer--glow {
  top: 20%; right: 20%;
  width: 40vw; height: 40vw;
  background: radial-gradient(circle, rgba(10,186,181,0.12), transparent 70%);
  animation: drift3 26s infinite alternate var(--ease);
}
@keyframes drift1 { from { transform: translate(0,0); } to { transform: translate(8vw, 6vh); } }
@keyframes drift2 { from { transform: translate(0,0); } to { transform: translate(-6vw, -4vh); } }
@keyframes drift3 { from { transform: translate(0,0) scale(1); } to { transform: translate(-4vw, 5vh) scale(1.15); } }

/* ============================================
   ZOOM CONTAINER — the camera scales this
   ============================================ */
.zoom {
  position: absolute;
  top: 50%; left: 50%;
  width: 100vmin; height: 100vmin;
  transform: translate(-50%, -50%) scale(var(--zoom-scale, 1)) translate(var(--zoom-tx, 0%), var(--zoom-ty, 0%));
  transform-origin: center center;
  will-change: transform;
}

/* The flake — own coreography, lives in .stage above zoom */
.flake {
  position: absolute;
  top: 50%; left: 50%;
  width: 60vmin; height: 60vmin;
  transform:
    translate(
      calc(-50% + var(--flake-x, 0vmin)),
      calc(-50% + var(--flake-y, 0vmin))
    )
    scale(var(--flake-scale, 1))
    rotate(var(--flake-rot, 0deg));
  pointer-events: none;
  opacity: var(--flake-opacity, 0.9);
  z-index: 2;
  will-change: transform, opacity;
}
.flake svg {
  width: 100%; height: 100%;
  display: block;
  filter: drop-shadow(0 0 30px rgba(10,186,181,0.25));
}

/* ============================================
   SCENES — each absolutely positioned in zoom
   They counter-scale so text stays readable
   ============================================ */
.scene {
  position: absolute;
  top: 50%; left: 50%;
  width: 100vmin;
  transform: translate(-50%, -50%) scale(var(--scene-scale, 1));
  transform-origin: center center;
  opacity: var(--scene-opacity, 0);
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
  will-change: opacity, transform;
}
.scene.is-active { pointer-events: auto; }

.scene__inner {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
  padding: clamp(1.5rem, 4vw, 3rem);
  max-width: 90vmin;
  margin: 0 auto;
}
.scene__inner--left { align-items: flex-start; text-align: left; }

/* Scene 2 — flake on the right, text on the left, no overlap */
.scene--2 .scene__inner {
  align-items: flex-start;
  text-align: left;
  max-width: 52vmin;
  margin-left: 5vw;
  margin-right: auto;
}
@media (max-width: 720px) {
  .scene--2 .scene__inner { max-width: 88vmin; margin: 0 auto; align-items: center; text-align: center; }
}

/* Scene 3 — pillars (light mode). Soft white glass on top of faded flake. */
.scene--3 .scene__inner {
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(10px) saturate(1.05);
  -webkit-backdrop-filter: blur(10px) saturate(1.05);
  border-radius: 28px;
  padding: clamp(2rem, 4vw, 3rem);
  max-width: 92vmin;
  border: 1px solid rgba(10,10,10,0.05);
}
.scene__body--narrow { max-width: 56ch; margin-left: auto; margin-right: auto; }

/* Scene 4 — services (deep mode). Dark glass on top of giant faded flake. */
.scene--4 .scene__inner {
  background: rgba(5,5,5,0.45);
  backdrop-filter: blur(10px) saturate(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  border-radius: 28px;
  padding: clamp(2rem, 4vw, 3rem);
  max-width: 92vmin;
  border: 1px solid rgba(255,255,255,0.06);
}
/* Scene 5 — the core (deep). Transparent. */
.scene--5 .scene__inner {
  background: transparent;
  padding: clamp(1.5rem, 4vw, 3rem);
  max-width: 70vmin;
}

.scene__eyebrow,
.scene__label {
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--aqua-deep);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}
.scene__label::before {
  content: ""; display: inline-block;
  width: 28px; height: 1px;
  background: var(--aqua-deep);
  margin-right: 0.75rem;
  vertical-align: middle;
}

/* Scene 1 — the macro headline */
.scene__headline {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(3.2rem, 11vw, 9rem);
  line-height: 0.95;
  letter-spacing: var(--tight);
  margin-bottom: clamp(1.25rem, 3vw, 2rem);
}
.scene__look {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 400;
  letter-spacing: 0;
  color: var(--aqua);
}

.scene__lede {
  font-size: clamp(1rem, 1.6vw, 1.35rem);
  line-height: 1.5;
  font-weight: 400;
  color: var(--grey-600);
  max-width: 32ch;
}

/* Scene 2-4 titles */
.scene__title {
  font-family: var(--sans);
  font-weight: 600;
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 1.02;
  letter-spacing: var(--tight);
  margin-bottom: clamp(1.5rem, 3vw, 2.25rem);
}
.scene__body {
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  line-height: 1.55;
  font-weight: 400;
  color: var(--grey-600);
  max-width: 52ch;
  margin-bottom: 1.25rem;
}
.scene__meta {
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--aqua-deep);
  margin-top: 1rem;
}

.scene__signoff {
  margin-top: clamp(2rem, 4vw, 3rem);
  font-size: clamp(1.1rem, 1.8vw, 1.5rem);
  font-weight: 600;
  letter-spacing: var(--tight);
}
.scene__signoff em { color: var(--aqua); }

/* ============================================
   SCENE 3 — pillars grid (3 values)
   ============================================ */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.75rem);
  width: 100%;
  margin-top: clamp(1.25rem, 2.5vw, 2rem);
}
.pillar {
  text-align: left;
  padding: 1.4rem;
  border: 1px solid rgba(10,10,10,0.08);
  border-radius: 18px;
  background: rgba(255,255,255,0.5);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.pillar:hover { border-color: var(--aqua); transform: translateY(-3px); }
.pillar__num {
  display: inline-block;
  font-family: var(--serif); font-style: italic;
  font-size: 1.3rem; color: var(--aqua);
  margin-bottom: 0.4rem;
}
.pillar__name {
  font-size: 1.05rem; font-weight: 600;
  letter-spacing: var(--tight);
  margin-bottom: 0.5rem;
}
.pillar__desc {
  font-size: 0.85rem; line-height: 1.55;
  font-weight: 400;
  color: var(--grey-600);
}

/* ============================================
   SCENE 4 — services grid (3 branches of the flake)
   ============================================ */
.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.75rem);
  width: 100%;
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
}
.service {
  text-align: left;
  padding: 1.5rem;
  border: 1px solid rgba(10,10,10,0.08);
  border-radius: 18px;
  background: rgba(255,255,255,0.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: border-color 0.4s var(--ease), transform 0.4s var(--ease);
}
.service:hover { border-color: var(--aqua); transform: translateY(-4px); }
.service__num {
  display: inline-block;
  font-family: var(--serif); font-style: italic;
  font-size: 1.4rem; color: var(--aqua);
  margin-bottom: 0.5rem;
}
.service__name {
  font-size: 1.15rem; font-weight: 600;
  letter-spacing: var(--tight);
  margin-bottom: 0.6rem;
}
.service__desc {
  font-size: 0.88rem; line-height: 1.55;
  font-weight: 400;
  color: var(--grey-600);
}

/* ============================================
   SCENE 5 — contact cards
   ============================================ */
.contact {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  width: 100%;
  max-width: 580px;
  margin: clamp(1.5rem, 3vw, 2.25rem) auto 0;
}
.contact__card {
  display: flex; flex-direction: column; gap: 0.4rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid rgba(10,10,10,0.08);
  border-radius: 16px;
  background: rgba(255,255,255,0.65);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  text-align: left;
  transition: border-color 0.3s var(--ease), transform 0.3s var(--ease);
}
.contact__card:hover { border-color: var(--aqua); transform: translateY(-2px); }
.contact__label {
  font-size: 0.7rem; letter-spacing: 0.18em;
  text-transform: uppercase; font-weight: 600;
  color: var(--aqua-deep);
}
.contact__value {
  font-size: 1.02rem; font-weight: 600;
  letter-spacing: var(--tight);
}

/* ============================================
   SCROLL TRACK — invisible, gives us scroll height
   ============================================ */
.track {
  position: relative;
  width: 100%;
  /* The track is the tall scroll element. The .stage (sticky) and
     .track__anchors (invisible spacers) are siblings.
     Total scroll = 1 stage height + 5 anchor segments = the journey. */
}
.track__anchors {
  position: relative;
  width: 100%;
  pointer-events: none;
}
.track__segment {
  height: 160vh;
  height: 160dvh;
  width: 100%;
}

/* ============================================
   DARK-MODE SCENES (3 & 4 feel deeper)
   We tint the ambient layers via body class set by JS
   ============================================ */
body.is-deep .ambient__layer--aqua { background: radial-gradient(circle at 30% 30%, rgba(10,186,181,0.4), transparent 65%); opacity: 0.75; }
body.is-deep .ambient__layer--ink { background: radial-gradient(circle, rgba(10,10,10,0.7), transparent 70%); opacity: 0.95; }
body.is-deep .ambient__layer--glow { background: radial-gradient(circle, rgba(180,120,200,0.18), transparent 70%); }
body.is-deep { background: #050505; }
body.is-deep .chrome__logo,
body.is-deep .scene__lede,
body.is-deep .scene__body,
body.is-deep .scene__title,
body.is-deep .scene__headline { color: #f5f5f3; }
body.is-deep .scene__look { color: var(--aqua); }
body.is-deep .scene__eyebrow,
body.is-deep .scene__label,
body.is-deep .scene__meta,
body.is-deep .contact__label { color: var(--aqua); }
body.is-deep .lang-toggle { background: rgba(255,255,255,0.08); border-color: rgba(255,255,255,0.2); color: #fff; }
body.is-deep .lang-menu { background: rgba(20,20,20,0.95); border-color: rgba(255,255,255,0.15); color: #fff; }
body.is-deep .lang-menu li:hover { background: rgba(255,255,255,0.08); }
body.is-deep .dots__dot { background: rgba(255,255,255,0.5); }
body.is-deep .service,
body.is-deep .contact__card { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.12); }
body.is-deep .service__name,
body.is-deep .contact__value { color: #fff; }
body.is-deep .service__desc { color: rgba(245,245,243,0.7); }
body.is-deep .hint { color: #fff; }
body.is-deep .scene__signoff { color: #fff; }
body.is-deep .hint__line { background: linear-gradient(180deg, #fff, transparent); }
body.is-deep .chrome__mark { color: #fff; }
body.is-deep .chrome__mark g[fill="currentColor"] { fill: #fff; }
body, body.is-deep { transition: background 0.8s var(--ease); }

/* ============================================
   MOBILE
   ============================================ */
@media (max-width: 720px) {
  .chrome { padding: 1rem 1rem; }
  .chrome__word { display: none; }
  .dots { right: 0.75rem; gap: 0.9rem; }
  .dots__label { display: none; }
  .services { grid-template-columns: 1fr; }
  .pillars { grid-template-columns: 1fr; gap: 0.85rem; }
  .pillar { padding: 1.1rem; }
  .contact { grid-template-columns: 1fr; }
  .scene--3 .scene__inner { max-width: 92vw; padding: 1.5rem; }
  .flake { width: 78vmin; height: 78vmin; }
  .scene__inner--left { align-items: center; text-align: center; }
  .hint { bottom: 1rem; font-size: 0.62rem; }
}

/* ============================================
   REDUCE MOTION FALLBACK
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  .ambient__layer { animation: none; }
  html { scroll-behavior: auto; }
  .flake { animation: none !important; }
}