/* =====================================================================
   Arth Stori — About / Brand Stori page
   Self-contained, animated, 3D. Scoped under .about-page
   ===================================================================== */

/* NOTE: no overflow:hidden here — it would disable position:sticky and kill the
   stacking-card animation. Horizontal bleed is clipped by body{overflow-x:hidden}. */
.about-page{position:relative}
.about-page section{position:relative}

/* Hidden pre-animation states apply ONLY when JS is active, so a
   no-JS / crawler view still shows everything. */
.about-page.is-js .ab-reveal,
.about-page.is-js .ab-fade,
.about-page.is-js .ab-words > .aw,
.about-page.is-js .ab-mask > span{will-change:transform,opacity}

/* ------------------------------------------------------------------ *
   Shared reveal primitives
 * ------------------------------------------------------------------ */
.about-page.is-js .ab-reveal{
  opacity:0;transform:translateY(38px);
  transition:opacity .9s var(--ease),transform .9s var(--ease);
  transition-delay:calc(var(--d,0) * .12s);
}
.about-page.is-js .ab-reveal.is-in{opacity:1;transform:none}

.about-page.is-js .ab-fade{opacity:0;transform:translateY(20px);
  transition:opacity 1s var(--ease),transform 1s var(--ease)}
.about-page.is-js .ab-hero.is-loaded .ab-fade{opacity:1;transform:none;
  transition-delay:calc(var(--d,0) * .13s + .2s)}

/* word-mask headings */
.ab-words{overflow:visible}
.about-page.is-js .ab-words > .aw{display:inline-block;overflow:hidden;
  vertical-align:top;padding-bottom:.04em}
.about-page.is-js .ab-words > .aw > i{display:inline-block;font-style:inherit;
  transform:translateY(110%);opacity:0;
  transition:transform .95s var(--ease),opacity .95s var(--ease);
  transition-delay:calc(var(--i,0) * .05s)}
.about-page.is-js .ab-words.is-in > .aw > i{transform:none;opacity:1}

/* ================================================================== *
   HERO
 * ================================================================== */
.ab-hero{min-height:100vh;display:flex;align-items:flex-end;overflow:hidden;
  padding:0 0 clamp(60px,10vh,120px);color:#fff;isolation:isolate}
.ab-hero__bg{position:absolute;inset:-8% 0;z-index:-3}
.ab-hero__bg img{width:100%;height:116%;object-fit:cover;
  transform:scale(1.08);filter:saturate(1.02)}
.ab-hero__veil{position:absolute;inset:0;z-index:-2;
  background:
    linear-gradient(180deg,rgba(8,24,18,.34) 0%,rgba(8,24,18,.1) 20%,rgba(8,24,18,.3) 48%,rgba(8,24,18,.92) 100%),
    linear-gradient(90deg,rgba(8,24,18,.72) 0%,rgba(8,24,18,.34) 40%,rgba(8,24,18,0) 78%)}
.ab-hero__grain{position:absolute;inset:0;z-index:-1;opacity:.5;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:4px 4px;mix-blend-mode:overlay}
.ab-hero__inner{position:relative}
.ab-hero .eyebrow{color:var(--gold-soft)}
.ab-hero .eyebrow::before,.ab-hero .eyebrow::after{background:var(--gold-soft);opacity:.9}
.ab-hero__title{font-family:var(--serif);font-weight:500;
  font-size:clamp(2.9rem,8.2vw,7.2rem);line-height:.98;margin:.18em 0 .35em;
  letter-spacing:.005em;text-shadow:0 2px 4px rgba(0,0,0,.5),0 14px 48px rgba(0,0,0,.55)}
.ab-hero__title .ab-mask{display:block;overflow:hidden;padding-bottom:.02em}
.about-page.is-js .ab-hero__title .ab-mask > span{display:block;transform:translateY(105%)}
.about-page.is-js .ab-hero.is-loaded .ab-hero__title .ab-mask > span{
  transform:none;transition:transform 1.1s var(--ease);
  transition-delay:calc(var(--d,0) * .12s + .15s)}
.ab-hero__title .ab-mask:last-child > span{color:var(--gold-soft);font-style:italic}
.ab-hero__sub{font-family:var(--sans);letter-spacing:.28em;text-transform:uppercase;
  font-size:.82rem;color:rgba(255,255,255,.86)}

.ab-scroll-cue{position:absolute;left:50%;bottom:26px;transform:translateX(-50%);
  display:flex;flex-direction:column;align-items:center;gap:10px;z-index:2}
.ab-scroll-cue__line{width:1px;height:52px;background:linear-gradient(var(--gold-soft),transparent);
  position:relative;overflow:hidden}
.ab-scroll-cue__line::after{content:"";position:absolute;left:0;top:-40%;width:100%;height:40%;
  background:var(--gold);animation:abScroll 2.2s var(--ease) infinite}
@keyframes abScroll{0%{top:-40%}60%,100%{top:120%}}
.ab-scroll-cue__txt{font-size:.62rem;letter-spacing:.36em;text-transform:uppercase;
  color:rgba(255,255,255,.7)}

/* ================================================================== *
   THE QUESTION
 * ================================================================== */
.ab-quest{padding:clamp(90px,14vh,170px) 0}
.ab-kicker{font-family:var(--sans);font-size:.78rem;letter-spacing:.4em;
  text-transform:uppercase;color:var(--gold-deep);margin:0 0 1.4em}
.ab-huge{font-family:var(--serif);font-weight:500;color:var(--text);
  font-size:clamp(2rem,5.2vw,4.6rem);line-height:1.08;letter-spacing:.005em;
  max-width:20ch;margin:0 auto}
.ab-huge--light{color:#fff;text-shadow:0 6px 34px rgba(0,0,0,.4)}
.ab-quest__q{font-family:var(--serif);font-style:italic;
  font-size:clamp(1.25rem,2.6vw,2rem);color:var(--gold-deep);
  max-width:30ch;margin:1.3em auto 0;line-height:1.4}

.ab-stats{display:flex;justify-content:center;gap:clamp(28px,6vw,84px);
  margin-top:clamp(48px,7vh,88px);flex-wrap:wrap}
.ab-stat{display:flex;flex-direction:column;align-items:center;gap:8px}
.ab-stat__n{font-family:var(--serif);font-size:clamp(3rem,6vw,5rem);
  line-height:.9;color:var(--gold);font-weight:500}
.ab-stat small{font-family:var(--sans);font-size:.72rem;letter-spacing:.24em;
  text-transform:uppercase;color:var(--muted)}

/* ================================================================== *
   SPLIT (manifesto + solo)
 * ================================================================== */
.ab-manifesto{padding:clamp(60px,9vh,120px) 0}
.ab-solo{padding:clamp(60px,9vh,120px) 0;background:var(--bg-2)}
.ab-split{display:grid;grid-template-columns:1fr 1fr;gap:clamp(36px,6vw,84px);
  align-items:center}
.ab-split--rev .ab-split__media{order:2}
.ab-split__text .eyebrow{margin-bottom:1.3em}
.ab-lead{font-family:var(--serif);font-size:clamp(1.6rem,3.2vw,2.7rem);
  line-height:1.15;color:var(--text);margin:0 0 .6em;max-width:18ch}
.ab-body{color:var(--muted);font-size:1.08rem;line-height:1.85;margin:0 0 1.1em}
.ab-body strong{color:var(--green);font-weight:500}
.ab-body:last-child{margin-bottom:0}

/* 3D tilt container */
.ab-tilt{perspective:1200px}
.ab-tilt__inner{transform-style:preserve-3d;transition:transform .18s var(--ease);
  will-change:transform}
.ab-split__media .ab-tilt__inner{position:relative;border-radius:20px;overflow:hidden;
  aspect-ratio:4/5;box-shadow:0 40px 90px -40px rgba(14,42,33,.55)}
.ab-split__media img{position:absolute;inset:-7% 0;width:100%;height:114%;
  object-fit:cover;will-change:transform}
.ab-tilt__shine{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 50% at var(--mx,50%) var(--my,30%),
    rgba(255,255,255,.28),transparent 60%);opacity:0;transition:opacity .3s}
.ab-tilt:hover .ab-tilt__shine{opacity:1}

/* ================================================================== *
   THE MEANING — ARTH / STORI cards
 * ================================================================== */
.ab-meaning{padding:clamp(70px,10vh,140px) 0;background:var(--green-deep);color:#fff}
.ab-meaning .eyebrow{color:var(--gold-soft);margin:0 auto 2.4em;justify-content:center}
.ab-meaning .eyebrow::before,.ab-meaning .eyebrow::after{background:var(--gold-soft)}
.ab-meaning__grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(24px,4vw,48px)}
.ab-word-card{perspective:1400px}
.ab-word-card .ab-tilt__inner{position:relative;padding:clamp(34px,4vw,64px);
  min-height:340px;border-radius:22px;display:flex;flex-direction:column;
  justify-content:flex-end;overflow:hidden;
  background:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(216,190,140,.22)}
.ab-word-card__big{position:absolute;top:-.12em;left:.06em;
  font-family:var(--serif);font-weight:600;line-height:1;
  font-size:clamp(5rem,13vw,11rem);color:rgba(216,190,140,.14);
  letter-spacing:.02em;transform:translateZ(20px);pointer-events:none;user-select:none}
.ab-word-card--gold .ab-word-card__big{color:rgba(216,190,140,.22)}
.ab-word-card__body{position:relative;transform:translateZ(48px)}
.ab-word-card__body h3{color:var(--gold-soft);font-size:1.35rem;margin:0 0 .5em}
.ab-word-card__body p{color:rgba(255,255,255,.82);font-size:1.08rem;line-height:1.75;margin:0}
.ab-word-card__body em{color:#fff;font-style:italic}

/* ================================================================== *
   THE OBSESSION + marquee
 * ================================================================== */
.ab-obsess{padding:clamp(80px,12vh,150px) 0 clamp(60px,9vh,120px)}
.ab-obsess__stack{margin-top:clamp(34px,5vh,64px);padding-top:0}
.ab-marquee{margin-top:clamp(48px,7vh,90px);overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:clamp(18px,2.4vh,30px) 0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
          mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.ab-marquee__track{display:inline-flex;align-items:center;gap:26px;white-space:nowrap;
  animation:abMarquee 34s linear infinite;will-change:transform}
.ab-marquee:hover .ab-marquee__track{animation-play-state:paused}
.ab-marquee span{font-family:var(--serif);font-style:italic;
  font-size:clamp(1.3rem,2.6vw,2.1rem);color:var(--text)}
.ab-marquee i{color:var(--gold);font-style:normal;font-size:1rem}
@keyframes abMarquee{to{transform:translateX(-50%)}}

/* ================================================================== *
   QUIET LUXURY — parallax band
 * ================================================================== */
.ab-luxe,.ab-kitchen{min-height:78vh;display:flex;align-items:center;
  color:#fff;isolation:isolate;overflow:hidden}
.ab-luxe__bg,.ab-kitchen__bg{position:absolute;inset:-10% 0;z-index:-2}
.ab-luxe__bg img,.ab-kitchen__bg img{width:100%;height:120%;object-fit:cover}
.ab-luxe__veil,.ab-kitchen__veil{position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(8,24,18,.55),rgba(8,24,18,.4) 50%,rgba(8,24,18,.7)),
    radial-gradient(90% 70% at 50% 50%,rgba(8,24,18,.15),rgba(8,24,18,.6))}
.ab-luxe__inner,.ab-kitchen__inner{position:relative;text-align:center}
.ab-luxe__sub{font-family:var(--serif);font-style:italic;
  font-size:clamp(1.2rem,2.5vw,1.9rem);color:var(--gold-soft);margin:1em 0 0}

/* ================================================================== *
   WHO IT'S FOR
 * ================================================================== */
.ab-for{padding:clamp(80px,12vh,150px) 0}
.ab-for__head{text-align:center;margin-bottom:clamp(44px,6vh,80px)}
.ab-for__head .eyebrow{justify-content:center;margin-bottom:1em}
.ab-for__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,2vw,28px)}
.ab-fcard{perspective:1000px}
.ab-fcard .ab-tilt__inner{height:100%;padding:clamp(26px,3vw,40px);border-radius:18px;
  background:var(--panel);border:1px solid var(--line);
  box-shadow:0 24px 60px -40px rgba(14,42,33,.4);
  transition:transform .18s var(--ease),box-shadow .4s var(--ease)}
.ab-fcard:hover .ab-tilt__inner{box-shadow:0 40px 80px -40px rgba(14,42,33,.5)}
.ab-fcard__ico{display:inline-flex;width:56px;height:56px;align-items:center;
  justify-content:center;border-radius:50%;margin-bottom:20px;
  background:linear-gradient(135deg,var(--green),var(--green-deep));color:var(--gold-soft);
  font-size:1.3rem;transform:translateZ(30px)}
.ab-fcard h3{font-size:1.3rem;color:var(--text);margin:0 0 .5em;transform:translateZ(20px)}
.ab-fcard p{color:var(--muted);font-size:.98rem;line-height:1.7;margin:0}

/* ================================================================== *
   KITCHEN
 * ================================================================== */
.ab-kitchen__inner{text-align:left;max-width:640px}
.ab-kitchen .eyebrow{color:var(--gold-soft)}
.ab-kitchen .eyebrow::before{background:var(--gold-soft)}
.ab-kitchen .ab-huge{margin-left:0;text-align:left}
.ab-kitchen .ab-luxe__sub{text-align:left}

/* ================================================================== *
   CLOSING
 * ================================================================== */
.ab-close{padding:clamp(90px,14vh,180px) 0;text-align:center;
  background:radial-gradient(120% 100% at 50% 0%,var(--bg-2),var(--bg))}
.ab-close .eyebrow{justify-content:center;margin-bottom:1.2em}
.ab-close__title{font-family:var(--serif);font-weight:500;color:var(--text);
  font-size:clamp(2.4rem,6.4vw,5.4rem);line-height:1.05;margin:0 auto .5em;max-width:16ch}
.ab-close__cta{margin-top:2.2em}

/* ================================================================== *
   RESPONSIVE
 * ================================================================== */
@media (max-width:900px){
  .ab-split{grid-template-columns:1fr;gap:36px}
  .ab-split--rev .ab-split__media{order:0}
  .ab-meaning__grid{grid-template-columns:1fr}
  .ab-for__grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:560px){
  .ab-for__grid{grid-template-columns:1fr}
  .ab-hero{min-height:92vh}
  .ab-stats{gap:24px}
}

/* ================================================================== *
   REDUCED MOTION
 * ================================================================== */
@media (prefers-reduced-motion:reduce){
  .about-page.is-js .ab-reveal,
  .about-page.is-js .ab-fade,
  .about-page.is-js .ab-words > .aw > i,
  .about-page.is-js .ab-hero__title .ab-mask > span{
    opacity:1 !important;transform:none !important;transition:none !important}
  .ab-marquee__track,.ab-scroll-cue__line::after{animation:none}
  .ab-tilt__inner{transition:none}
}