:root {
  --pink: #edafaf;
  --ink: #2f2e2e;
  --black: #080909;
  --white: #fff;
  --line-dark: rgba(47,46,46,.28);
  --line-light: rgba(255,255,255,.28);
  --ease: cubic-bezier(.16,1,.3,1);
  --gutter: clamp(1.25rem,4vw,4.5rem);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; background: var(--black); }
body { margin: 0; color: var(--ink); background: var(--pink); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; overflow-x: hidden; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
:focus-visible { outline: 3px solid currentColor; outline-offset: 5px; }

.skip-link { position: fixed; z-index: 1000; left: 1rem; top: 1rem; padding: .75rem 1rem; background: var(--white); color: var(--black); transform: translateY(-180%); transition: transform .2s var(--ease); }
.skip-link:focus { transform: translateY(0); }

.site-header { position: fixed; z-index: 50; inset: 0 0 auto; display: flex; justify-content: space-between; align-items: center; padding: 1.1rem var(--gutter); color: var(--white); mix-blend-mode: difference; }
.parent-brand { display: flex; align-items: baseline; gap: .55rem; text-decoration: none; font-size: .8rem; }
.parent-brand strong { font-size: 1rem; }
.header-cta { font-size: .76rem; text-transform: uppercase; letter-spacing: .06em; text-underline-offset: .28em; }

.hero { height: 280vh; background: var(--black); }
.hero-sticky { position: sticky; top: 0; height: 100vh; overflow: hidden; isolation: isolate; }
#hero-canvas, .hero-still { position: absolute; inset: 0; display: block; width: 100%; height: 100%; }
#hero-canvas { z-index: 0; }
.hero-still { display: none; background: url("assets/posters/ai-direction.jpg") center/cover no-repeat; }
.hero-sticky::after { content: ""; position: absolute; z-index: 1; inset: 0; background: rgba(8,9,9,.18); pointer-events: none; }
.hero-content { position: relative; z-index: 2; width: min(90vw, 1240px); min-height: 100%; margin: 0 auto; display: flex; flex-direction: column; justify-content: center; align-items: flex-start; color: var(--white); will-change: transform, opacity; }
.eyebrow, .hero-claim, .hero-proof { background: rgba(8,9,9,.76); display: inline-block; padding: .3rem .65rem; margin: 0 0 .45rem; backdrop-filter: blur(5px); }
.eyebrow { font-size: clamp(.72rem,1vw,.92rem); font-weight: 600; text-transform: uppercase; letter-spacing: .08em; }
.hero h1 { margin: 0; font-size: clamp(5rem,17vw,16rem); line-height: .72; letter-spacing: -.095em; text-shadow: 0 4px 30px rgba(0,0,0,.9), 0 2px 10px rgba(0,0,0,.7), 0 0 60px rgba(0,0,0,.5); }
.hero h1 span { display: inline; }
.hero-ai { color: var(--pink); }
.hero-claim { margin-top: 1.3rem; font-size: clamp(1.2rem,2.4vw,2.25rem); font-weight: 600; }
.hero-proof { color: #fff; font-size: clamp(.88rem,1.25vw,1.05rem); }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 48px; padding: .85rem 1.15rem; text-decoration: none; text-transform: uppercase; letter-spacing: .055em; font-size: .76rem; font-weight: 700; transition: transform .4s var(--ease), background .4s var(--ease), color .4s var(--ease); }
.button:hover { transform: translateY(-3px); }
.button-light { margin-top: 1rem; color: var(--black); background: var(--white); }
.scroll-cue { position: absolute; z-index: 2; right: var(--gutter); bottom: 1.2rem; margin: 0; padding: .32rem .62rem; color: #fff; background: rgba(8,9,9,.76); font-size: .68rem; text-transform: uppercase; letter-spacing: .08em; }

section:not(.hero) { padding: clamp(5rem,10vw,10rem) var(--gutter); }
.pink-section { background: var(--pink); color: var(--ink); }
.black-section { background: var(--black); color: var(--white); }
.white-section { background: var(--white); color: var(--ink); }
.section-index { margin: 0 0 2rem; font-size: .72rem; line-height: 1.2; text-transform: uppercase; letter-spacing: .08em; font-weight: 700; }
h2 { margin: 0; font-size: clamp(2.7rem,7vw,8rem); line-height: .93; letter-spacing: -.065em; }
.section-head { margin-bottom: clamp(3rem,8vw,7rem); }

.thesis h2 { max-width: 13ch; }
.thesis-grid { display: grid; grid-template-columns: 1.25fr 1fr; gap: clamp(2rem,8vw,9rem); margin-top: clamp(3rem,8vw,8rem); align-items: end; }
.lead { margin: 0; max-width: 30ch; font-size: clamp(1.35rem,2.8vw,3.1rem); line-height: 1.07; letter-spacing: -.035em; }
.proof-list { margin: 0; border-top: 1px solid var(--line-dark); }
.proof-list div { display: grid; grid-template-columns: minmax(7rem,.7fr) 1.3fr; gap: 1rem; padding: 1.1rem 0; border-bottom: 1px solid var(--line-dark); }
.proof-list dt { font-weight: 700; }
.proof-list dd { margin: 0; line-height: 1.45; }

.work { padding-bottom: 2rem !important; }
.work .section-head h2 { max-width: 12ch; }
.case { display: grid; grid-template-columns: minmax(0,1.7fr) minmax(18rem,.7fr); min-height: min(72vw,780px); border-top: 1px solid var(--line-light); align-items: stretch; }
.case-reverse { grid-template-columns: minmax(18rem,.7fr) minmax(0,1.7fr); }
.case-reverse .case-media { order: 2; }
.case-media { position: relative; overflow: hidden; background: #111; }
.case-media video { width: 100%; height: 100%; min-height: 34rem; display: block; object-fit: cover; filter: saturate(.94) contrast(1.02); transition: transform .9s var(--ease); }
.case:hover .case-media video { transform: scale(1.018); }
.media-toggle { position: absolute; left: 1rem; bottom: 1rem; min-width: 64px; min-height: 44px; padding: .6rem .8rem; border: 0; border-radius: 0; color: var(--black); background: rgba(255,255,255,.9); font: inherit; font-size: .72rem; font-weight: 700; text-transform: uppercase; cursor: pointer; }
.case-copy { display: flex; flex-direction: column; justify-content: flex-end; padding: clamp(2rem,4vw,4.5rem); }
.case-number { margin: 0 auto auto 0; color: #aaa; font-size: .72rem; }
.case h3 { margin: 0; font-size: clamp(2rem,4.2vw,5rem); line-height: .92; letter-spacing: -.06em; }
.case-copy > p:not(.case-number) { color: #c6c6c6; font-size: clamp(1rem,1.4vw,1.25rem); line-height: 1.45; }
.case ul { margin: 1rem 0 0; padding: 0; list-style: none; border-top: 1px solid var(--line-light); }
.case li { padding: .7rem 0; border-bottom: 1px solid var(--line-light); color: #d4d4d4; font-size: .82rem; }

.offers h2 { max-width: 10ch; }
.offer-list { border-top: 1px solid var(--line-dark); }
.offer { display: grid; grid-template-columns: 3rem minmax(12rem,.9fr) 1.2fr auto; align-items: center; gap: 1.5rem; padding: 1.7rem 0; border-bottom: 1px solid var(--line-dark); transition: padding .4s var(--ease); }
.offer:hover { padding-left: .7rem; padding-right: .7rem; }
.offer p { margin: 0; font-size: .72rem; }
.offer h3 { margin: 0; font-size: clamp(1.35rem,2.5vw,2.4rem); letter-spacing: -.035em; }
.offer span { max-width: 46ch; line-height: 1.45; }
.offer a { font-size: .75rem; font-weight: 700; text-transform: uppercase; text-underline-offset: .25em; }

.process .section-head { display: grid; grid-template-columns: .7fr 1.3fr; }
.process h2 { max-width: 9ch; }
.process-steps { margin: 0; padding: 0; list-style: none; display: grid; grid-template-columns: repeat(4,1fr); border-top: 1px solid var(--line-dark); }
.process-steps li { min-height: 17rem; padding: 1.2rem 1.3rem 1.2rem 0; border-right: 1px solid var(--line-dark); display: flex; flex-direction: column; }
.process-steps li + li { padding-left: 1.3rem; }
.process-steps li:last-child { border-right: 0; }
.process-steps span { font-size: .72rem; }
.process-steps strong { margin-top: auto; font-size: 1.25rem; }
.process-steps p { margin: .55rem 0 0; color: #555; line-height: 1.45; }

.contact { min-height: 92vh; display: flex; flex-direction: column; justify-content: center; }
.contact h2 { max-width: 11ch; }
.contact-copy { width: min(50rem,100%); margin: 2.5rem 0; color: #bdbdbd; font-size: clamp(1.05rem,1.8vw,1.45rem); line-height: 1.45; }
.button-pink { align-self: flex-start; color: var(--ink); background: var(--pink); }
.contact-meta { display: flex; gap: 1rem 2rem; flex-wrap: wrap; margin-top: 4rem; padding-top: 1rem; border-top: 1px solid var(--line-light); color: #aaa; font-size: .78rem; text-transform: uppercase; }
footer { display: flex; justify-content: space-between; gap: 1rem; padding: 1.3rem var(--gutter); color: var(--ink); background: var(--pink); font-size: .72rem; text-transform: uppercase; }

.reveal { opacity: 0; transform: translateY(34px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 800px) {
  .site-header { padding-top: .85rem; }
  .parent-brand span { display: none; }
  .header-cta { font-size: .67rem; }
  .hero { height: 220vh; }
  .hero-content { width: calc(100% - 2.5rem); justify-content: flex-end; padding-bottom: 6rem; }
  .hero h1 { font-size: clamp(4rem,23vw,7rem); line-height: .78; }
  .hero h1 span { display: block; }
  .hero-ai { margin-left: -.03em; }
  .scroll-cue { left: 1.25rem; right: auto; }
  .thesis-grid, .process .section-head { grid-template-columns: 1fr; }
  .proof-list { margin-top: 1rem; }
  .case, .case-reverse { grid-template-columns: 1fr; min-height: 0; }
  .case-reverse .case-media { order: 0; }
  .case-media video { min-height: 58vw; }
  .case-copy { min-height: 25rem; }
  .offer { grid-template-columns: 2.2rem 1fr; gap: .8rem 1rem; }
  .offer span, .offer a { grid-column: 2; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .process-steps li:nth-child(2) { border-right: 0; }
  .process-steps li:nth-child(n+3) { border-top: 1px solid var(--line-dark); }
  footer { flex-direction: column; }
}

@media (max-width: 480px) {
  section:not(.hero) { padding-top: 4.5rem; padding-bottom: 4.5rem; }
  h2 { font-size: clamp(2.55rem,14vw,4rem); }
  .hero-proof { max-width: 19rem; line-height: 1.35; }
  .button { width: 100%; text-align: center; }
  .proof-list div { grid-template-columns: 1fr; gap: .25rem; }
  .case-copy { min-height: 22rem; padding: 1.5rem 1.25rem 2rem; }
  .process-steps { grid-template-columns: 1fr; }
  .process-steps li, .process-steps li + li { min-height: 12rem; padding: 1rem 0; border-right: 0; border-top: 1px solid var(--line-dark); }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  #hero-canvas { display: none; }
  .hero-still { display: block; }
  .hero { height: 100vh; }
  .reveal { opacity: 1; transform: none; transition: none; }
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; }
}