/* ==========================================================
   AUCTORIX — design tokens
   ========================================================== */
:root{
  --ink:        #0A0A0B;
  --ink-2:      #111114;
  --ink-3:      #15151A;
  --paper:      #F5F4F0;
  --paper-dim:  #E8E6E0;
  --signal:     #FF4D2E;
  --steel:      #3A3D42;
  --line:       #26262A;
  --line-soft:  rgba(245,244,240,0.10);
  --mist:       #9A9AA1;
  --mist-dim:   #6F6F75;

  --display: "Archivo", sans-serif;
  --body:    "Inter", sans-serif;
  --mono:    "JetBrains Mono", monospace;

  --container: 1240px;
  --pad: clamp(24px, 5vw, 64px);

  --ease: cubic-bezier(.16,.84,.32,1);
}

*{ margin:0; padding:0; box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  background: var(--ink);
  color: var(--paper);
  font-family: var(--body);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; cursor:pointer; border:none; background:none; }
ul,ol{ list-style:none; }

:focus-visible{
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

.scroll-rail{
  position: fixed; top:0; left:0; width:100%; height:2px;
  background: transparent; z-index: 200;
}
.scroll-rail__fill{
  height:100%; width:0%;
  background: var(--signal);
  transition: width .08s linear;
}

/* ==========================================================
   NAV
   ========================================================== */
.nav{
  position: fixed; top:0; left:0; right:0; z-index:150;
  padding: 20px 0;
  transition: padding .4s var(--ease), background-color .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled{
  padding: 14px 0;
  background: rgba(10,10,11,0.78);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
}
/* on light sections, nav flips to light theme */
.nav.is-light{
  background: rgba(245,244,240,0.82);
  border-bottom: 1px solid rgba(10,10,11,0.08);
}
.nav.is-contact{
  background: rgba(10,10,11,0.85);
  border-bottom: 1px solid rgba(245,244,240,0.12);
}
.nav.is-contact .nav__mark--dark{ display:block; }
.nav.is-contact .nav__mark--light{ display:none; }
.nav.is-contact .nav__word{ color: var(--paper); }
.nav.is-contact .nav__links a{ color: var(--mist); }
.nav.is-contact .nav__links a:hover{ color: var(--paper); }
.nav.is-contact .nav__cta{ border-color: var(--line-soft); color: var(--paper) !important; }
.nav__inner{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--pad);
  display:flex; align-items:center; justify-content:space-between;
  gap: 24px;
}
.nav__brand{
  display:flex; align-items:center; gap:10px;
  font-family: var(--display);
  font-weight: 800;
  letter-spacing: 0.04em;
  font-size: 15px;
  flex-shrink:0;
}
.nav__mark{ width:22px; height:auto; }
.nav__mark--light{ display:none; }
.nav.is-light .nav__mark--dark{ display:none; }
.nav.is-light .nav__mark--light{ display:block; }
.nav.is-light .nav__word{ color: var(--ink); }

.nav__links{
  display:flex; align-items:center; gap: 36px;
}
.nav__links a{
  font-size: 13.5px;
  font-weight: 500;
  color: var(--mist);
  display:flex; align-items:center; gap:7px;
  transition: color .25s var(--ease);
  position:relative;
}
.nav.is-light .nav__links a{ color: var(--steel); }
.nav__links a:hover{ color: var(--paper); }
.nav.is-light .nav__links a:hover{ color: var(--ink); }
.nav__tag{
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--signal);
}
.nav__cta{
  padding: 9px 18px;
  border: 1px solid var(--line-soft);
  border-radius: 999px;
  color: var(--paper) !important;
}
.nav.is-light .nav__cta{ border-color: rgba(10,10,11,0.18); color: var(--ink) !important; }
.nav__cta:hover{
  background: var(--signal);
  border-color: var(--signal);
  color: var(--paper) !important;
}

.nav__burger{
  display:none;
  flex-direction:column;
  gap:5px;
  width: 28px;
  z-index: 250;
}
.nav__burger span{
  display:block; height:2px; width:100%;
  background: var(--paper);
  transition: transform .35s var(--ease), opacity .35s var(--ease), background-color .3s;
}
.nav.is-light .nav__burger span{ background: var(--ink); }
.nav__burger[aria-expanded="true"] span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2){ opacity:0; }
.nav__burger[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }
.nav__burger[aria-expanded="true"] span{ background: var(--paper) !important; }

/* ==========================================================
   MOBILE MENU
   ========================================================== */
.mobile-menu{
  position: fixed; inset:0; z-index:140;
  background: var(--ink);
  display:flex; flex-direction:column; justify-content:space-between;
  padding: 100px var(--pad) 48px;
  transform: translateY(-100%);
  transition: transform .5s var(--ease);
  visibility:hidden;
}
.mobile-menu.is-open{ transform: translateY(0); visibility:visible; }
.mobile-menu nav{ display:flex; flex-direction:column; gap: 6px; }
.mobile-menu a{
  font-family: var(--display);
  font-weight: 700;
  font-size: clamp(32px, 9vw, 46px);
  color: var(--paper);
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  display:flex; align-items:baseline; gap:16px;
}
.mobile-menu__num{
  font-family: var(--mono);
  font-size: 14px;
  color: var(--signal);
}
.mobile-menu__footer{
  display:flex; justify-content:space-between;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--mist-dim);
}

/* ==========================================================
   HERO
   ========================================================== */
.hero{
  position: relative;
  min-height: 100vh;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  padding: 140px var(--pad) 80px;
  overflow:hidden;
}
.hero__plate{
  position:absolute; inset:0;
  display:flex; align-items:center; justify-content:center;
  pointer-events:none;
}

/* ==========================================================
   Section watermark mark — shared across hero + content sections
   Rotation/translation driven by JS via --mark-rot / --mark-y custom props
   ========================================================== */
.section-mark{
  position: absolute;
  top: 50%; left: 50%;
  width: min(46vw, 480px);
  pointer-events: none;
  z-index: 0;
  --mark-rot: 0deg;
  --mark-y: 0px;
  --mark-scale: 1;
  transform: translate(-50%, -50%) translateY(var(--mark-y)) rotate(var(--mark-rot)) scale(var(--mark-scale));
  will-change: transform;
}
.section-mark--dark{ opacity: 0.09; }
.section-mark--light{ opacity: 0.07; }
.section-mark--top{ top: 130px; }

#heroMark{
  width: min(58vw, 620px);
  position: static;
  transform: rotate(var(--mark-rot)) translateY(var(--mark-y));
  opacity: 0.09;
}

/* make sure section content sits above its watermark */
.section__head, .cases, .approach__grid, .services__list, .about__grid{ position: relative; z-index: 1; }

.hero__mark{
  width: min(58vw, 620px);
  opacity: 0.05;
  will-change: transform;
}
.hero__tick{
  position:absolute;
  width: 200px; height:60px;
  overflow:visible;
}
.hero__tick line{ stroke: var(--signal); stroke-width: 1.2; opacity:0.55; }
.tick-label{
  font-family: var(--mono); font-size: 11px; fill: var(--signal); opacity:0.7;
}
.hero__tick--a{ top: 22%; left: 6%; }
.hero__tick--b{ bottom: 18%; right: 6%; transform: scaleX(-1); }
.hero__tick--b .tick-label{ transform: scaleX(-1) translateX(-340px); }

.hero__content{
  position:relative; z-index:2;
  max-width: 760px;
  text-align:center;
}
.eyebrow{
  display:inline-flex; align-items:center; gap:9px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.06em;
  color: var(--mist);
  margin-bottom: 28px;
  text-transform: uppercase;
}
.eyebrow__dot{
  width:6px; height:6px; border-radius:50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(255,77,46,0.15);
}
.hero__title{
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(42px, 8vw, 84px);
  line-height: 1.03;
  letter-spacing: -0.01em;
  margin-bottom: 28px;
}
.hero__title-line{ display:block; opacity:0; transform: translateY(24px); animation: riseIn .8s var(--ease) forwards; }
.hero__title-line:nth-child(1){ animation-delay: .05s; }
.hero__title-line:nth-child(2){ animation-delay: .18s; }
.hero__title-line:nth-child(3){ animation-delay: .31s; }
.hero__title-line--accent{ color: var(--signal); position:relative; }
.hero__title-asterisk{ font-size: 0.5em; vertical-align: super; }
@keyframes riseIn{ to{ opacity:1; transform:translateY(0); } }

.hero__sub{
  font-size: clamp(16px, 2vw, 19px);
  line-height: 1.6;
  color: var(--mist);
  max-width: 560px;
  margin: 0 auto 36px;
  opacity:0; animation: riseIn .8s var(--ease) forwards; animation-delay: .45s;
}
.hero__actions{
  display:flex; align-items:center; justify-content:center; gap:16px; flex-wrap:wrap;
  opacity:0; animation: riseIn .8s var(--ease) forwards; animation-delay: .58s;
}
.hero__footnote{
  margin-top:20px;
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--mist-dim);
  opacity:0; animation: riseIn .8s var(--ease) forwards; animation-delay: .7s;
}

.btn{
  display:inline-flex; align-items:center; gap:8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 14.5px;
  transition: transform .3s var(--ease), background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
}
.btn--primary{ background: var(--signal); color: var(--ink); }
.btn--primary:hover{ transform: translateY(-2px); background:#ff6347; }
.btn--ghost{ border: 1px solid var(--line-soft); color: var(--paper); }
.btn--ghost:hover{ border-color: var(--paper); transform: translateY(-2px); }
.btn__arrow{ display:inline-block; transition: transform .3s var(--ease); }
.btn--ghost:hover .btn__arrow{ transform: translateY(3px); }
.btn--block{ width:100%; justify-content:center; }

.hero__scroll-cue{
  position:absolute; bottom: 36px; left:50%; transform:translateX(-50%);
  display:flex; flex-direction:column; align-items:center; gap:10px;
  font-family: var(--mono); font-size:11px; color: var(--mist-dim);
  letter-spacing:0.08em; text-transform:uppercase;
}
.hero__scroll-line{ width:1px; height:34px; background: linear-gradient(to bottom, var(--mist-dim), transparent); animation: scrollPulse 2s ease-in-out infinite; }
@keyframes scrollPulse{ 0%,100%{ opacity:.3; } 50%{ opacity:1; } }

/* ==========================================================
   MARQUEE STRIP
   ========================================================== */
.strip{
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow:hidden;
  padding: 18px 0;
  background: var(--ink-2);
}
.strip__track{
  display:flex; white-space:nowrap; width:max-content;
  animation: marquee 32s linear infinite;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--mist-dim);
}
.strip__track span{ padding: 0 18px; }
.strip__sep{ color: var(--signal); }
@keyframes marquee{ from{ transform: translateX(0); } to{ transform: translateX(-50%); } }

/* ==========================================================
   SECTION shared
   ========================================================== */
.section{
  position: relative;
  padding: 120px var(--pad);
  max-width: var(--container);
  margin: 0 auto;
}
.section__head{ max-width: 640px; margin-bottom: 64px; }
.section__head--left{ margin-bottom:0; }
.section__tag{
  display:block;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--signal);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
}
.section__tag--light{ color: var(--ink); }
.section__title{
  font-family: var(--display);
  font-weight: 800;
  font-size: clamp(30px, 4.6vw, 50px);
  line-height: 1.08;
  letter-spacing: -0.01em;
}
.section__lede{
  margin-top: 18px;
  font-size: 17px;
  line-height: 1.65;
  color: var(--mist);
}

.reveal{
  opacity:0; transform: translateY(36px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.is-visible{ opacity:1; transform:translateY(0); }

/* ==========================================================
   WORK / CASES
   ========================================================== */
.section--work{ background: var(--ink); }
.cases{ display:flex; flex-direction:column; gap:1px; background: var(--line); border:1px solid var(--line); }
.case{
  display: block;
  background: var(--ink);
  transition: background-color .4s var(--ease);
}
.case:hover{ background: var(--ink-2); }
.case__plate{ display:flex; align-items:flex-start; justify-content:center; padding-top:6px; }
.case__svg{ width:64px; height:64px; fill:none; stroke: var(--signal); stroke-width:3; opacity:.85; }
.case__client{ font-family: var(--mono); font-size:12.5px; color: var(--mist-dim); margin-bottom:10px; letter-spacing:0.04em; text-transform:uppercase; }
.case__headline{ font-family: var(--display); font-weight:700; font-size: clamp(21px, 2.6vw, 28px); margin-bottom:14px; line-height:1.2; }
.case__copy{ color: var(--mist); line-height:1.65; margin-bottom: 26px; max-width: 560px; }
.case__stats{ display:flex; gap: 40px; }
.case__stat{ display:block; font-family: var(--display); font-weight:800; font-size:26px; color: var(--signal); }
.case__stat-label{ display:block; font-size:12.5px; color: var(--mist-dim); margin-top:4px; }

/* ==========================================================
   APPROACH (light section)
   ========================================================== */
.section--approach{
  background: var(--paper);
  color: var(--ink);
  border-radius: 28px;
  margin: 40px auto;
}
.section--approach .section__title{ color: var(--ink); }
.section--approach .section__lede{ color: var(--steel); }
.section--approach .section__tag{ color: var(--signal); }

.approach__grid{ display:grid; grid-template-columns: minmax(0,1fr) minmax(0,1.3fr); gap: 64px; align-items:start; }
.approach__items{ display:flex; flex-direction:column; gap:0; border-top:1px solid rgba(10,10,11,0.12); min-width:0; }
.approach__item{
  display:grid; grid-template-columns: 90px minmax(0,1fr);
  gap: 28px;
  padding: 34px 0;
  border-bottom:1px solid rgba(10,10,11,0.12);
  min-width:0;
}
.approach__num{
  font-family: var(--display); font-weight:800; font-size:30px; color: var(--signal);
}
.approach__body{ min-width:0; }
.approach__body h3{ font-family: var(--display); font-weight:700; font-size:19px; margin-bottom:10px; }
.approach__body p{ color: var(--steel); line-height:1.6; font-size:15.5px; }

/* ==========================================================
   SERVICES
   ========================================================== */
.section--services{ background: var(--ink); }
.services__list{ border-top:1px solid var(--line); }
.service-row{
  position:relative;
  display:grid; grid-template-columns: 280px 1fr;
  gap: 40px;
  padding: 34px 0;
  border-bottom:1px solid var(--line);
  transition: padding-left .35s var(--ease);
}
.service-row:hover{ padding-left: 14px; }
.service-row__name{ font-family: var(--display); font-weight:700; font-size:22px; }
.service-row__desc{ color: var(--mist); line-height:1.6; max-width: 540px; }
.service-row__line{
  position:absolute; left:0; top:0; bottom:0; width:2px; background: var(--signal);
  transform: scaleY(0); transform-origin: top;
  transition: transform .35s var(--ease);
}
.service-row:hover .service-row__line{ transform: scaleY(1); }

/* ==========================================================
   ABOUT
   ========================================================== */
.section--about{ background: var(--ink-2); border-radius: 28px; margin: 40px auto; }
.about__grid{ display:grid; grid-template-columns: 0.9fr 1.4fr; gap:64px; align-items:start; }
.about__portrait{ position:sticky; top:140px; }
.about__portrait-frame{
  aspect-ratio: 1; border:1px solid var(--line); border-radius:20px;
  display:flex; align-items:center; justify-content:center;
  background: linear-gradient(160deg, var(--ink) 0%, var(--ink-3) 100%);
}
.about__svg{ width:46%; fill:none; stroke: var(--signal); stroke-width:2.5; }
.about__coords{
  display:flex; flex-direction:column; gap:6px;
  margin-top:18px; font-family: var(--mono); font-size:11.5px; color: var(--mist-dim);
  letter-spacing:0.04em;
}
.about__content .section__title{ margin-bottom:22px; }
.about__lede{ font-family: var(--display); font-weight:700; font-size:19px; color: var(--paper); margin-bottom:18px; }
.about__content p{ color: var(--mist); line-height:1.75; margin-bottom:18px; font-size:16px; max-width: 580px; }
.about__content em{ color: var(--paper); font-style:normal; font-weight:600; }
.link-arrow{ display:inline-flex; align-items:center; gap:8px; font-weight:600; color: var(--paper); margin-top:10px; }
.link-arrow span{ transition: transform .3s var(--ease); display:inline-block; }
.link-arrow:hover span{ transform: translateX(4px); }

/* ==========================================================
   CONTACT
   ========================================================== */
.section--contact{
  max-width:none;
  background: var(--signal);
  color: var(--ink);
  border-radius: 28px;
  margin: 40px 40px 0;
  padding: 100px var(--pad);
  position:relative;
  overflow:hidden;
  box-sizing: border-box;
}
.contact__plate{ position:absolute; right: -40px; top:50%; transform:translateY(-50%); opacity:0.16; pointer-events:none; width:460px; }
.contact__plate svg{ width:100%; height:auto; fill:none; stroke: var(--ink); stroke-width:1.6; }
.contact__content{ position:relative; z-index:2; max-width:620px; }
.contact__title{
  font-family: var(--display); font-weight:800;
  font-size: clamp(34px,6vw,58px); line-height:1.05; margin-bottom:18px;
}
.contact__sub{ font-size:17px; line-height:1.6; max-width:520px; margin-bottom:44px; color: rgba(10,10,11,0.78); }

.contact__form{ display:flex; flex-direction:column; gap:18px; max-width:520px; }
.form__row{ display:flex; flex-direction:column; gap:8px; }
.form__row label{ font-family: var(--mono); font-size:12px; letter-spacing:0.05em; text-transform:uppercase; }
.form__row input, .form__row textarea{
  background: rgba(10,10,11,0.06);
  border: 1.5px solid rgba(10,10,11,0.22);
  border-radius: 10px;
  padding: 13px 16px;
  font-family: var(--body);
  font-size:15px;
  color: var(--ink);
  resize: vertical;
  transition: border-color .25s, background-color .25s;
}
.form__row input::placeholder, .form__row textarea::placeholder{ color: rgba(10,10,11,0.4); }
.form__row input:focus, .form__row textarea:focus{ border-color: var(--ink); background: rgba(245,244,240,0.9); outline:none; }
.section--contact .btn--primary{ background: var(--ink); color: var(--paper); margin-top:6px; }
.section--contact .btn--primary:hover{ background:#000; }
.form__note{ font-family: var(--mono); font-size:13px; min-height:18px; }
.form__note.is-success{ color: var(--ink); font-weight:600; }

/* ==========================================================
   FOOTER
   ========================================================== */
.footer{ padding: 64px var(--pad) 40px; max-width: var(--container); margin:0 auto; }
.footer__inner{ display:flex; justify-content:space-between; align-items:flex-start; flex-wrap:wrap; gap:32px; padding-top:36px; border-top:1px solid var(--line); }
.footer__brand{ display:flex; align-items:center; gap:14px; }
.footer__mark{ width:30px; }
.footer__brand p{ font-family: var(--mono); font-size:12px; color: var(--mist-dim); line-height:1.5; }
.footer__links{ display:flex; gap:26px; flex-wrap:wrap; }
.footer__links a{ font-size:13.5px; color: var(--mist); transition: color .25s; }
.footer__links a:hover{ color: var(--paper); }
.footer__legal{ width:100%; font-size:12px; color: var(--mist-dim); margin-top: 20px; }

/* ==========================================================
   RESPONSIVE
   ========================================================== */
@media (max-width: 980px){
  .nav__links{ display:none; }
  .nav__burger{ display:flex; }
  .hero__tick{ display:none; }
  .approach__grid{ grid-template-columns:1fr; gap:36px; }
  .about__grid{ grid-template-columns:1fr; }
  .about__portrait{ position:static; max-width:280px; }
  .case{ grid-template-columns:1fr; gap:20px; }
  .case__plate{ justify-content:flex-start; }
  .service-row{ grid-template-columns:1fr; gap:12px; }
}

@media (max-width: 640px){
  .section{ padding: 88px var(--pad); }
  .section--contact{ padding: 64px var(--pad); border-radius:20px; }
  .section--approach, .section--about{ border-radius:20px; }
  .hero{ padding-top:120px; }
  .hero__title{ font-size: clamp(36px, 11vw, 52px); }
  .case__stats{ gap:24px; }
  .contact__mark{ width:260px; }
  .footer__inner{ flex-direction:column; }
}

/* ==========================================================
   THREE.JS HERO CANVAS — fixed behind hero only
   ========================================================== */
#heroCanvas{
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100vh;
  z-index: 0;
  pointer-events: none;
  opacity: 1;
  transition: opacity 1s ease;
}
#heroCanvas.is-hidden{ opacity: 0; }

/* hero content needs to sit above canvas */
.hero{ z-index: 2; position: relative; }
.hero__plate{ z-index: 3; }
.hero__content{ z-index: 3; position: relative; }
.hero__scroll-cue{ z-index: 3; }

/* ensure all page sections sit above the canvas */
.strip, .section, .footer{ position: relative; z-index: 2; }
.nav{ z-index: 150; }
.mobile-menu{ z-index: 140; }
.scroll-rail{ z-index: 200; }

/* ==========================================================
   3D TILT CARDS (case studies)
   ========================================================== */
.tilt-card{
  perspective: 1000px;
  cursor: default;
  display: block;
  background: transparent;
  padding: 0;
  width: 100%;
}
.tilt-card__inner{
  position: relative;
  width: 100%;
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  grid-template-rows: auto;
  gap: 40px;
  padding: 48px;
  background: var(--ink);
  transform-style: preserve-3d;
  transform: rotateX(0deg) rotateY(0deg);
  transition: transform 0.08s linear, background-color 0.4s var(--ease), box-shadow 0.4s var(--ease);
  will-change: transform;
  border-radius: 2px;
  box-sizing: border-box;
}
.tilt-card:hover .tilt-card__inner{
  background: var(--ink-2);
  box-shadow: 0 30px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,77,46,0.08);
}
/* shine is a full-bleed overlay — must not be a grid item */
.tilt-card__shine{
  position: absolute;
  inset: 0;
  border-radius: 2px;
  background: radial-gradient(circle at 50% 50%, rgba(255,255,255,0.04) 0%, transparent 70%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s;
  z-index: 10;
}
.tilt-card:hover .tilt-card__shine{ opacity: 1; }
/* explicitly place grid children so shine doesn't push them */
.tilt-card__inner > .case__plate{ grid-column: 1; grid-row: 1; }
.tilt-card__inner > .case__body{ grid-column: 2; grid-row: 1; min-width: 0; }

/* ==========================================================
   SERVICES — 3D entrance (rotateX from below)
   ========================================================== */
.service-row{
  transform-origin: top center;
  transform-style: preserve-3d;
}
.service-row.reveal{
  opacity: 0;
  transform: rotateX(-28deg) translateY(20px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.service-row.reveal.is-visible{
  opacity: 1;
  transform: rotateX(0deg) translateY(0);
}
.service-row:nth-child(1){ transition-delay: 0s; }
.service-row:nth-child(2){ transition-delay: 0.06s; }
.service-row:nth-child(3){ transition-delay: 0.12s; }
.service-row:nth-child(4){ transition-delay: 0.18s; }
.service-row:nth-child(5){ transition-delay: 0.24s; }
.service-row:nth-child(6){ transition-delay: 0.30s; }
.services__list{
  perspective: 900px;
  perspective-origin: 50% 0%;
}

/* ==========================================================
   ABOUT PORTRAIT — 3D rotateY spin on scroll
   ========================================================== */
#portraitFrame{
  transform-style: preserve-3d;
  will-change: transform;
  transition: transform 0.05s linear;
}

/* ==========================================================
   APPROACH ITEMS — 3D entrance from left
   ========================================================== */
.approach__item.reveal{
  opacity: 0;
  transform: perspective(600px) rotateY(-20deg) translateX(-30px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.approach__item.reveal.is-visible{
  opacity: 1;
  transform: perspective(600px) rotateY(0deg) translateX(0);
}
.approach__item:nth-child(1){ transition-delay: 0s; }
.approach__item:nth-child(2){ transition-delay: 0.12s; }
.approach__item:nth-child(3){ transition-delay: 0.24s; }

/* ==========================================================
   HERO title — 3D entrance
   ========================================================== */
.hero__title-line{
  display: block;
  opacity: 0;
  transform: perspective(400px) translateZ(-60px) translateY(20px);
  animation: titleRise 0.9s var(--ease) forwards;
}
.hero__title-line:nth-child(1){ animation-delay: 0.05s; }
.hero__title-line:nth-child(2){ animation-delay: 0.2s; }
.hero__title-line:nth-child(3){ animation-delay: 0.35s; }
@keyframes titleRise{
  to{ opacity: 1; transform: perspective(400px) translateZ(0) translateY(0); }
}

/* ==========================================================
   RESPONSIVE — mobile & tablet overrides
   All layout collapses happen here, no conflicts above
   ========================================================== */
@media (max-width: 980px){
  .nav__links{ display:none; }
  .nav__burger{ display:flex; }
  .hero__tick{ display:none; }
  .approach__grid{ grid-template-columns:1fr; gap:36px; }
  .about__grid{ grid-template-columns:1fr; }
  .about__portrait{ position:static; max-width:280px; }
  .service-row{ grid-template-columns:1fr; gap:12px; }

  /* tilt cards — disable 3D, collapse to single column */
  .tilt-card{ perspective: none; }
  .tilt-card__inner{
    transform: none;
    grid-template-columns: 1fr;
    grid-template-rows: auto;
    gap: 24px;
    padding: 28px;
  }
  .tilt-card__inner > .case__plate{ grid-column: 1; grid-row: 1; }
  .tilt-card__inner > .case__body{ grid-column: 1; grid-row: 2; }
  .tilt-card__shine{ display: none; }
}

@media (max-width: 640px){
  /* prevent any horizontal overflow */
  html, body{ max-width: 100%; overflow-x: hidden; }
  .section{ padding: 72px var(--pad); }
  .section--contact{ padding: 56px var(--pad); border-radius: 20px; margin: 24px 16px 0; }
  .section--approach, .section--about{ border-radius: 20px; margin: 24px auto; }
  .hero{ padding-top: 110px; }
  .hero__title{ font-size: clamp(34px, 10vw, 50px); }
  .case__stats{ gap: 20px; flex-wrap: wrap; }
  .case__stat{ font-size: 22px; }
  .footer__inner{ flex-direction: column; }
  .footer__links{ flex-wrap: wrap; gap: 16px; }
  /* section marks can bleed on small screens — clip them */
  .section--work, .section--services, .section--about, .section--approach{
    overflow: hidden;
  }
  /* contact background mark — scale down on mobile */
  .contact__plate{ right: -80px; width: 300px; }
  /* approach items — simpler entrance on mobile (no 3D to avoid jank) */
  .approach__item.reveal{
    transform: translateY(20px);
  }
  .approach__item.reveal.is-visible{
    transform: translateY(0);
  }
  /* services — simpler entrance on mobile */
  .service-row.reveal{
    transform: translateY(16px);
  }
  .service-row.reveal.is-visible{
    transform: translateY(0);
  }
}

/* ==========================================================
   CUSTOM CURSOR
   ========================================================== */
*, *::before, *::after{ cursor: none; }
@media (hover: none){ *, *::before, *::after{ cursor: auto; } }

.cursor{
  position: fixed;
  top: 0; left: 0;
  pointer-events: none;
  z-index: 9999;
  mix-blend-mode: difference;
}
.cursor__dot{
  position: absolute;
  width: 6px; height: 6px;
  background: #fff;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.1s var(--ease), width 0.25s var(--ease), height 0.25s var(--ease);
  will-change: transform;
}
.cursor__ring{
  position: absolute;
  width: 36px; height: 36px;
  border: 1.5px solid rgba(255,255,255,0.55);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: transform 0.08s linear, width 0.35s var(--ease), height 0.35s var(--ease), opacity 0.3s, border-color 0.3s;
  will-change: transform;
}
/* hover states — ring swells, dot disappears */
.cursor.is-hovering .cursor__dot{
  width: 0px; height: 0px;
}
.cursor.is-hovering .cursor__ring{
  width: 64px; height: 64px;
  border-color: var(--signal);
  opacity: 0.9;
}
/* link/button label inside ring on hover */
.cursor.is-hovering::after{
  content: attr(data-label);
  position: absolute;
  transform: translate(-50%, -50%);
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--signal);
  white-space: nowrap;
  text-transform: uppercase;
}
/* hide on touch devices */
@media (hover: none){ .cursor{ display: none; } }

/* ==========================================================
   CLIP-MASK WORD REVEAL (hero title)
   ========================================================== */
/* Override the old titleRise animation — the outer line no longer animates,
   the inner .word-reveal does the actual motion via clip + translate */
.hero__title-line{
  display: block;
  overflow: hidden;        /* this is the mask */
  opacity: 1 !important;
  transform: none !important;
  animation: none !important;
}
.word-reveal{
  display: block;
  transform: translateY(110%);
  opacity: 0;
  animation: wordSlideUp 0.85s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.hero__title-line:nth-child(1) .word-reveal{ animation-delay: 0.1s; }
.hero__title-line:nth-child(2) .word-reveal{ animation-delay: 0.28s; }
.hero__title-line:nth-child(3) .word-reveal{ animation-delay: 0.46s; }

@keyframes wordSlideUp{
  to{ transform: translateY(0); opacity: 1; }
}

/* cascade the hero sub + actions slightly behind the last title line */
.hero__sub{
  opacity: 0;
  transform: translateY(18px);
  animation: riseIn 0.75s cubic-bezier(0.16,1,0.3,1) forwards;
  animation-delay: 0.72s;
}
.hero__actions{
  opacity: 0;
  transform: translateY(14px);
  animation: riseIn 0.75s cubic-bezier(0.16,1,0.3,1) forwards;
  animation-delay: 0.88s;
}
.hero__footnote{
  opacity: 0;
  animation: riseIn 0.6s cubic-bezier(0.16,1,0.3,1) forwards;
  animation-delay: 1.0s;
}

/* ==========================================================
   TEXT SCRAMBLE (nav links)
   ========================================================== */
.scramble{ display: inline-block; }
/* no extra CSS needed — JS drives the content directly */

/* ==========================================================
   STAT COUNTER
   ========================================================== */
.case__stat{
  display: block;
  font-family: var(--display);
  font-weight: 800;
  font-size: 26px;
  color: var(--signal);
  /* override only the transition for the count-up effect */
  transition: opacity 0.3s;
}
/* stat starts invisible, JS fades in as it counts */
.case__stat[data-stat].counting{
  opacity: 0.2;
}