/* ==========================================================================
   Sho Hsieh — Interactive Experience Designer
   Design notes:
   - Single family (Schibsted Grotesk) carrying the whole voice through
     weight + size contrast. The work supplies the colour; the page does not.
   - Background is a true near-neutral off-white (chroma ~0.002), deliberately
     NOT a warm cream. Dark, luminous installation photography needs a cool,
     quiet frame to read as light emitting from the image.
   ========================================================================== */

:root {
  /* --- Surface ------------------------------------------------------------ */
  --bg:            oklch(0.972 0.002 255);
  --bg-sunk:       oklch(0.945 0.003 255);
  --bg-ink:        oklch(0.175 0.008 255);

  /* --- Type --------------------------------------------------------------- */
  --ink:           oklch(0.185 0.008 255);
  /* Contrast values below are measured against --bg in the browser, not
     estimated. --ink-faint carries 14px labels, so it must clear 4.5:1. */
  --ink-soft:      oklch(0.425 0.008 255);   /* 7.63:1 */
  --ink-faint:     oklch(0.535 0.008 255);   /* 4.86:1 */
  --ink-invert:    oklch(0.965 0.002 255);

  --rule:          oklch(0.185 0.008 255 / 0.14);
  --rule-strong:   oklch(0.185 0.008 255 / 0.34);

  /* --- Accent -------------------------------------------------------------
     Not chosen. Measured. Sampled across seven projection stills from
     "New Friend": the dominant saturated hue in the work is #2F6F84,
     oklch(0.509 0.073 222.6). Chroma is lifted for use at small sizes,
     the hue is left exactly where the work put it.                          */
  --accent:        oklch(0.585 0.128 222.6);
  --accent-ink:    oklch(0.445 0.105 222.6);   /* 6.9:1 on --bg */

  /* --- Type scale (1.28 ratio, fluid) ------------------------------------- */
  --step--1: clamp(0.79rem, 0.77rem + 0.10vw, 0.85rem);
  --step-0:  clamp(1.00rem, 0.96rem + 0.18vw, 1.10rem);
  --step-1:  clamp(1.28rem, 1.18rem + 0.45vw, 1.56rem);
  --step-2:  clamp(1.64rem, 1.44rem + 0.95vw, 2.22rem);
  --step-3:  clamp(2.10rem, 1.72rem + 1.85vw, 3.16rem);
  --step-4:  clamp(2.69rem, 2.00rem + 3.35vw, 4.49rem);
  --step-5:  clamp(3.44rem, 2.20rem + 6.05vw, 6.00rem);

  /* --- Rhythm -------------------------------------------------------------- */
  --gutter:  clamp(1.25rem, 0.85rem + 2vw, 2.75rem);
  --measure: 68ch;

  /* --- Motion -------------------------------------------------------------- */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);   /* quint */
  --dur-fast: 220ms;
  --dur:      460ms;
  --dur-slow: 900ms;

  /* --- Depth --------------------------------------------------------------- */
  --z-sticky: 100;
  --z-nav:    200;
  --z-overlay:300;
}

/* ==========================================================================
   Base
   ========================================================================== */

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: 'Schibsted Grotesk', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: var(--step-0);
  font-weight: 400;
  line-height: 1.55;
  letter-spacing: -0.011em;
  font-synthesis-weight: none;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img, video { display: block; max-width: 100%; height: auto; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 500;
  line-height: 1.02;
  letter-spacing: -0.035em;
  text-wrap: balance;
}

p { margin: 0; text-wrap: pretty; }

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

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

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

/* ==========================================================================
   Layout primitives
   ========================================================================== */

.shell {
  width: 100%;
  max-width: 1680px;
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.rule { border: 0; height: 1px; background: var(--rule); margin: 0; }

/* ==========================================================================
   Masthead
   ========================================================================== */

.masthead {
  position: sticky;
  top: 0;
  z-index: var(--z-nav);
  background: color-mix(in oklab, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px) saturate(1.3);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-fast) linear;
}
.masthead[data-scrolled='true'] { border-bottom-color: var(--rule); }

.masthead__inner {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 0.95rem;
}

.wordmark {
  font-size: var(--step-0);
  font-weight: 700;
  letter-spacing: -0.03em;
  white-space: nowrap;
}
.wordmark span {
  font-weight: 400;
  color: var(--ink-soft);
  letter-spacing: -0.012em;
}
@media (max-width: 34rem) { .wordmark span { display: none; } }

.nav { display: flex; gap: clamp(1rem, 3vw, 2.25rem); font-size: var(--step--1); }

.nav a {
  position: relative;
  color: var(--ink-soft);
  padding-block: 0.15rem;
  transition: color var(--dur-fast) var(--ease-out);
}
.nav a::after {
  content: '';
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease-out);
}
.nav a:hover, .nav a[aria-current='page'] { color: var(--ink); }
.nav a:hover::after, .nav a[aria-current='page']::after { transform: scaleX(1); }

/* ==========================================================================
   Hero
   ========================================================================== */

.hero { padding-block: clamp(4.5rem, 3rem + 9vw, 10rem) clamp(3rem, 2rem + 5vw, 6rem); }

.hero__statement {
  font-size: var(--step-5);
  font-weight: 500;
  letter-spacing: -0.038em;
  line-height: 0.99;
  max-width: 19ch;
}
.hero__statement em {
  font-style: normal;
  font-weight: 900;
}

.hero__sub {
  margin-top: clamp(1.75rem, 1rem + 2.5vw, 3rem);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(23rem, 100%), 1fr));
  gap: clamp(1.25rem, 3vw, 3.5rem);
  align-items: start;
}

.hero__lede {
  font-size: var(--step-1);
  line-height: 1.42;
  letter-spacing: -0.019em;
  max-width: 46ch;
  color: var(--ink-soft);
}
.hero__lede strong { color: var(--ink); font-weight: 500; }

.hero__facts {
  display: grid;
  gap: 0.55rem;
  font-size: var(--step--1);
  align-self: end;
}
.hero__fact {
  display: grid;
  grid-template-columns: 5.5rem 1fr;
  gap: 1rem;
  padding-block: 0.5rem;
  border-top: 1px solid var(--rule);
}
.hero__fact dt { color: var(--ink-faint); }
.hero__fact dd { margin: 0; color: var(--ink); }

/* ==========================================================================
   Reel
   ========================================================================== */

.reel { padding-bottom: clamp(3.5rem, 2rem + 6vw, 7rem); }

.reel__frame {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--bg-ink);
  overflow: hidden;
}
.reel__frame video,
.reel__frame img { width: 100%; height: 100%; object-fit: cover; }

.reel__placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 0.75rem;
  text-align: center;
  color: oklch(0.72 0.01 255);
  padding: 2rem;
}
.reel__placeholder b {
  display: block;
  font-size: var(--step-2);
  font-weight: 500;
  letter-spacing: -0.03em;
  color: oklch(0.9 0.005 255);
}

/* ==========================================================================
   Section heads
   ========================================================================== */

.section { padding-block: clamp(3rem, 2rem + 5vw, 6.5rem); }

.section__head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem 2rem;
  padding-bottom: 1.35rem;
  border-bottom: 1px solid var(--rule-strong);
  margin-bottom: clamp(1.75rem, 1rem + 3vw, 3.25rem);
}
.section__title {
  font-size: var(--step-2);
  font-weight: 700;
  letter-spacing: -0.036em;
}
.section__note {
  font-size: var(--step--1);
  color: var(--ink-faint);
  max-width: 34ch;
}

/* ==========================================================================
   Work index — deliberately uneven. Weight follows importance, not a template.
   ========================================================================== */

.work {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(2.25rem, 1.25rem + 4vw, 5rem) clamp(1rem, 0.5rem + 2vw, 2.5rem);
}

.piece { grid-column: span 12; display: block; }

@media (min-width: 52rem) {
  .piece--major { grid-column: span 12; }
  .piece--half  { grid-column: span 6; }
  .piece--minor { grid-column: span 4; }
  .piece--wide  { grid-column: span 8; }
}

.piece__frame {
  position: relative;
  overflow: hidden;
  background: var(--bg-sunk);
  aspect-ratio: 3 / 2;
}
.piece--major .piece__frame { aspect-ratio: 21 / 9; }
.piece--minor .piece__frame { aspect-ratio: 4 / 5; }

.piece__frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.001);
  transition: transform var(--dur-slow) var(--ease-out),
              filter   var(--dur)      var(--ease-out);
}
.piece:hover .piece__frame img,
.piece:focus-visible .piece__frame img { transform: scale(1.035); }

.piece__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 1rem;
  padding-top: 0.95rem;
}

.piece__name {
  font-size: var(--step-1);
  font-weight: 700;
  letter-spacing: -0.032em;
  line-height: 1.1;
}
.piece--major .piece__name { font-size: var(--step-3); }

.piece__client {
  font-size: var(--step--1);
  color: var(--ink-soft);
}
.piece__tag {
  margin-left: auto;
  font-size: var(--step--1);
  color: var(--ink-faint);
  white-space: nowrap;
}

.piece__award {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--accent-ink);
}
.piece__award::before {
  content: '';
  width: 0.42rem; height: 0.42rem;
  border-radius: 50%;
  background: var(--accent);
  flex: none;
}

/* ==========================================================================
   Recognition
   ========================================================================== */

.recognition { background: var(--bg-sunk); }

.awards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(15rem, 100%), 1fr));
  gap: 0;
  border-top: 1px solid var(--rule);
}
.award {
  padding: clamp(1.1rem, 0.8rem + 1vw, 1.75rem) 0;
  border-bottom: 1px solid var(--rule);
  padding-right: 2rem;
}
.award__name {
  font-size: var(--step-1);
  font-weight: 700;
  letter-spacing: -0.03em;
}
.award__for {
  font-size: var(--step--1);
  color: var(--ink-soft);
  margin-top: 0.3rem;
}

/* ==========================================================================
   About
   ========================================================================== */

.about__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(21rem, 100%), 1fr));
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  align-items: start;
}

.about__body {
  font-size: var(--step-1);
  line-height: 1.5;
  letter-spacing: -0.018em;
  max-width: var(--measure);
  display: grid;
  gap: 1.1em;
}
.about__body p + p { color: var(--ink-soft); }

/* Scope table — states plainly what is and is not mine. */
.scope { display: grid; gap: 1.75rem; }
.scope__set h3 {
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--ink-faint);
  padding-bottom: 0.6rem;
  border-bottom: 1px solid var(--rule-strong);
}
.scope__list {
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: var(--step-0);
}
.scope__list li {
  padding-block: 0.5rem;
  border-bottom: 1px solid var(--rule);
}
.scope__set--out .scope__list li { color: var(--ink-faint); }

/* ==========================================================================
   Contact
   ========================================================================== */

.contact { background: var(--bg-ink); color: var(--ink-invert); }
.contact a { color: var(--ink-invert); }

.contact__call {
  font-size: var(--step-4);
  font-weight: 500;
  letter-spacing: -0.038em;
  line-height: 1.04;
  max-width: 17ch;
}

.contact__mail {
  display: inline-block;
  margin-top: clamp(1.5rem, 1rem + 2vw, 2.75rem);
  font-size: var(--step-2);
  font-weight: 700;
  letter-spacing: -0.032em;
  padding-bottom: 0.15rem;
  background-image: linear-gradient(currentColor, currentColor);
  background-size: 100% 1px;
  background-position: 0 100%;
  background-repeat: no-repeat;
  transition: background-size var(--dur) var(--ease-out);
}
.contact__mail:hover { background-size: 0% 1px; }

.contact__links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: clamp(2rem, 1.5rem + 3vw, 4rem);
  padding-top: 1.5rem;
  border-top: 1px solid oklch(1 0 0 / 0.16);
  font-size: var(--step--1);
}
.contact__links a { color: oklch(0.78 0.01 255); transition: color var(--dur-fast) var(--ease-out); }
.contact__links a:hover { color: var(--ink-invert); }
.contact__colophon { margin-left: auto; color: oklch(0.62 0.01 255); }
@media (max-width: 46rem) { .contact__colophon { margin-left: 0; } }

/* ==========================================================================
   Reveal — content is visible by default; JS opts in to the animation so a
   failed script or a headless render never ships a blank page.
   ========================================================================== */

[data-reveal] { opacity: 1; }

.js-reveal [data-reveal] {
  opacity: 0;
  transform: translateY(1.35rem);
  transition: opacity var(--dur-slow) var(--ease-out),
              transform var(--dur-slow) var(--ease-out);
  transition-delay: var(--reveal-delay, 0ms);
}
.js-reveal [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .js-reveal [data-reveal] { opacity: 1; transform: none; }
}