/* =====================================================================
   Arrel Homes
   STRICT TWO-COLOUR SYSTEM.
   Only #632E29 (red) and #EFE8D9 (cream) exist in this file.
   Every other value is one of those two at reduced alpha - never a new hue.
   ===================================================================== */
:root{
  --red:#632E29;
  --cream:#EFE8D9;

  /* derived: alpha only, no new hues */
  --red-75:rgba(99,46,41,.75);
  --red-55:rgba(99,46,41,.55);
  --red-16:rgba(99,46,41,.16);
  --red-08:rgba(99,46,41,.08);
  --cream-75:rgba(239,232,217,.75);
  --cream-55:rgba(239,232,217,.55);
  --cream-22:rgba(239,232,217,.22);
  --cream-08:rgba(239,232,217,.08);

  --display:"Marcellus",'Times New Roman',serif;
  --body:"Lato",system-ui,-apple-system,"Helvetica Neue",sans-serif;

  --pad:clamp(20px,4.5vw,68px);
  --band:max(88vh,780px);  /* every section is exactly this tall - the floor
                              keeps them equal on short screens too */
  --gutter:max(var(--pad),calc((100% - 1600px) / 2));
  --ease:cubic-bezier(.22,1,.36,1);
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;scroll-padding-top:92px}
body{
  background:var(--red);color:var(--cream);
  font-family:var(--body);font-weight:300;font-size:clamp(15px,1.05vw,17px);
  line-height:1.62;letter-spacing:.005em;overflow-x:hidden;
}
img{display:block;width:100%;height:100%;object-fit:cover}
a{color:inherit;text-decoration:none}
::selection{background:var(--red);color:var(--cream)}

/* ===== loader ===== */
.loader{position:fixed;inset:0;z-index:200;overflow:hidden}
.loader.is-done{display:none}
.loader__panel{position:absolute;top:0;height:100%;width:50.2%;background:var(--cream)}
.loader__panel:nth-of-type(1){left:0}
.loader__panel:nth-of-type(2){right:0}
.loader__line{position:absolute;top:0;height:100%;width:1px;background:var(--red-16)}
.loader__line:nth-of-type(3){left:25%}
.loader__line:nth-of-type(4){left:75%}
.loader__line:nth-of-type(5){left:50%}
.loader__mark{position:absolute;top:50%;left:50%;translate:-50% -50%;
  width:clamp(104px,13vw,168px);box-sizing:content-box;
  padding:clamp(30px,3.6vw,54px);background:var(--red);border-radius:50%}

/* ===== the logo - one definition, every instance ===== */
.logo .logo__disc{fill:var(--cream);transform-origin:center;transform-box:fill-box}
.logo .logo__tree{stroke:var(--red)}
.logo .logo__beam{stroke:var(--red)}

/* ===== masked line reveal (shared) ===== */
.mask{display:block;overflow:hidden;
  padding-bottom:.2em;margin-bottom:-.2em}   /* room for descenders */
.mask>span{display:block}

/* ===== nav ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;display:flex;align-items:center;
  justify-content:space-between;padding:18px var(--gutter);color:var(--cream);
  background:var(--red);transition:background .45s var(--ease),color .45s var(--ease)}
.nav.on-light{background:var(--cream);color:var(--red)}
.nav.on-dark{background:var(--red);color:var(--cream)}
.nav__line{position:absolute;left:var(--gutter);right:var(--gutter);bottom:0;height:1px;
  background:currentColor;opacity:.2;transform-origin:left}
.nav__brand{display:flex;align-items:center;gap:11px}
.nav__mask{display:block;overflow:hidden}
.nav__mark{display:block;width:22px;height:22px;flex:0 0 auto;object-fit:contain}
.nav__name{display:block;font-family:var(--display);font-size:13px;letter-spacing:.22em}
/* language switcher */
.nav__right{display:flex;align-items:center;gap:clamp(14px,2vw,28px)}
.lang{display:flex;align-items:center;gap:2px}
.lang button{background:none;border:0;cursor:pointer;color:inherit;opacity:.45;
  font-family:var(--body);font-size:11px;letter-spacing:.18em;padding:4px 6px;
  transition:opacity .35s var(--ease)}
.lang button:hover{opacity:.8}
.lang button.is-on{opacity:1;text-decoration:underline;text-underline-offset:5px}

.nav__burger{background:none;border:0;cursor:pointer;width:30px;display:grid;gap:6px;padding:6px 0;
  color:inherit;overflow:hidden}
.nav__burger i{height:1px;background:currentColor;transition:transform .45s var(--ease)}
.nav.is-open .nav__burger i:first-child{transform:translateY(3.5px) rotate(45deg)}
.nav.is-open .nav__burger i:last-child{transform:translateY(-3.5px) rotate(-45deg)}

.menu{position:fixed;inset:0;z-index:99;background:var(--red);display:grid;align-content:center;
  gap:.2em;padding:0 var(--gutter);clip-path:inset(0 0 100% 0);transition:clip-path .8s var(--ease)}
.menu.is-open{clip-path:inset(0 0 0 0)}
.menu a{font-family:var(--display);font-size:clamp(30px,6vw,80px);line-height:1.18;
  display:flex;gap:.5em;align-items:baseline;opacity:.6;transition:opacity .4s,transform .6s var(--ease)}
.menu a:hover{opacity:1;transform:translateX(18px)}
.menu em{font-family:var(--body);font-size:12px;font-style:normal;letter-spacing:.2em;color:var(--cream-55)}

/* ===== type ===== */
.display{font-family:var(--display);font-weight:400;line-height:.98;letter-spacing:-.015em;
  font-size:clamp(32px,5.2vw,84px)}
.display--xl{font-size:clamp(36px,6.2vw,100px)}
.eyebrow{display:flex;gap:.9em;align-items:center;font-size:11px;letter-spacing:.24em;
  text-transform:uppercase;color:var(--red-75);margin-bottom:clamp(20px,2.8vw,40px)}
.eyebrow i{font-style:normal;color:var(--red-55)}
.eyebrow::before{content:"";width:7px;height:7px;background:var(--red);flex:0 0 auto;border-radius:1px}
.lede{max-width:46ch;color:var(--red-75);font-size:clamp(15px,1.35vw,19px);margin-top:1.1em}

[data-split]{overflow:hidden}
[data-split] .ln{display:block;overflow:hidden;
  padding-bottom:.16em;margin-bottom:-.16em} /* room for descenders */
[data-split] .ln>span{display:block;transform:translateY(105%);
  transition:transform 1s var(--ease);transition-delay:var(--d,0s)}
[data-split].is-in .ln>span{transform:none}

[data-reveal]{opacity:0;transform:translateY(26px);
  transition:opacity .9s var(--ease),transform .9s var(--ease);transition-delay:var(--d,0s)}
[data-reveal].is-in{opacity:1;transform:none}

/* ===== hero ===== */
.hero{position:relative;min-height:var(--band);background:var(--red);display:flex;
  flex-direction:column;justify-content:center;
  padding:clamp(90px,13vh,140px) var(--gutter) clamp(48px,6.4vw,90px);overflow:hidden}

.hero__grid{display:grid;grid-template-columns:1fr minmax(200px,300px);gap:clamp(28px,6vw,90px);
  align-items:end}
.hero__lead{display:grid;justify-items:start}
.hero__mark{width:clamp(88px,10.5vw,158px);height:auto;overflow:visible}
.hero__word{font-family:var(--display);font-weight:400;line-height:.92;letter-spacing:-.025em;
  font-size:clamp(48px,10vw,150px);text-wrap:balance}
.hero__lede{color:var(--cream-75);font-size:14px;line-height:1.7}
.hero__lede .ln{display:block;overflow:hidden}
.hero__scroll{display:inline-block;margin-top:2.6em;font-size:11px;letter-spacing:.26em}
.hero__scroll.is-bobbing>span{display:block;animation:bob 2.4s var(--ease) infinite}
@keyframes bob{0%,100%{transform:none;opacity:1}50%{transform:translateY(7px);opacity:.5}}

/* ===== sections ===== */
.sec{position:relative;padding-block:clamp(48px,6.4vw,90px);padding-inline:var(--gutter);
  min-height:var(--band);display:flex;flex-direction:column;justify-content:center}

.sec--light{background:var(--cream);color:var(--red)}
.sec--dark{background:var(--red);color:var(--cream)}
.sec--dark .eyebrow{color:var(--cream-75)}
.sec--dark .eyebrow i{color:var(--cream-55)}
.sec--dark .eyebrow::before{background:var(--cream)}
.sec__split{display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(28px,6vw,90px);align-items:end}
.sec__split .col{display:grid;gap:1.3em;color:var(--red-75);max-width:44ch}

/* dark section carries the mark as a watermark */
.sec--dark{overflow:hidden}

/* the mark sits in the corner of every band; currentColor flips it
   automatically - red on the cream grounds, cream on the red ones */
.sec::after,.hero::after{content:"";position:absolute;
  right:var(--gutter);bottom:clamp(20px,2.6vw,38px);
  width:clamp(22px,2.1vw,32px);aspect-ratio:1;pointer-events:none;
  background:currentColor;opacity:.45;
  -webkit-mask:url(../mark.svg) center/contain no-repeat;
  mask:url(../mark.svg) center/contain no-repeat}
.sec--dark>*{position:relative;z-index:1}
.sec>*{flex:0 0 auto}

/* cta */
.cta{text-align:center}
.cta .eyebrow{justify-content:center}
.cta .display{margin-inline:auto;max-width:16ch}
.cta__note{color:var(--cream-75);max-width:44ch;margin:clamp(22px,2.6vw,34px) auto 0;
  font-size:clamp(15px,1.3vw,18px)}
.cta__link{display:inline-flex;align-items:baseline;gap:.6em;
  margin-top:clamp(34px,4.5vw,56px);font-family:var(--display);
  font-size:clamp(16px,1.6vw,22px);line-height:1.2;
  border-bottom:1px solid var(--cream-22);padding-bottom:.3em;
  transition:border-color .45s var(--ease)}
.cta__link i{font-style:normal;font-family:var(--body);font-size:.7em;
  transition:transform .45s var(--ease)}
.cta__link:hover{border-color:var(--cream)}
.cta__link:hover i{transform:translateX(4px)}

/* footer */

/* responsive */
@media (max-width:900px){
  .sec__split{grid-template-columns:1fr}
  .hero__grid{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition-duration:.01ms!important}
  [data-reveal],[data-split] .ln>span{opacity:1;transform:none}
}

/* ===== hero showcase: label, meta, controls ===== */
.hero__eyebrow{font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--cream-75)}
.hero__word{transition:opacity .5s var(--ease)}

.hero__nav{display:flex;align-items:center;gap:14px}

.hero__word .mask>span,.hero__kicker .mask>span,#pDesc,#pMeta{
  transition:opacity .34s var(--ease),transform .34s var(--ease)}
.is-swapping{opacity:0;transform:translateY(14px)}

/* ===== what we build ===== */

.cases__media{overflow:hidden;aspect-ratio:4/3;max-height:56vh}
.cases__media img{transition:transform 1.2s var(--ease)}
.cases__media:hover img{transform:scale(1.04)}

.specs{list-style:none;display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--red-16);margin-top:clamp(30px,4vw,58px)}
.specs li{background:var(--cream);padding:clamp(14px,1.6vw,22px);display:grid;gap:.35em;
  transition:box-shadow .5s var(--ease)}
.specs li:hover{box-shadow:inset 0 0 0 999px var(--red-08)}
.specs span{font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--red-55)}
.specs b{font-family:var(--display);font-weight:400;font-size:clamp(18px,1.9vw,27px);line-height:1.1}

/* cta on the dark ground */
.sec--dark.cta .lede{color:var(--cream-75);margin-inline:auto}

@media (max-width:900px){
  .cases__row,.specs{grid-template-columns:1fr}
}

/* ===== hero (single statement) ===== */
.hero__kicker{font-family:var(--display);font-size:clamp(19px,1.9vw,27px);margin-bottom:1.1em}

/* ===== process: click through the steps ===== */
.steps__body{display:grid;grid-template-columns:1fr 1fr;gap:clamp(26px,4vw,70px);
  align-items:start;margin-top:clamp(26px,3.4vw,52px)}
.steps__nav{list-style:none;border-top:1px solid var(--cream-22)}
.steps__nav li{border-bottom:1px solid var(--cream-22)}
.steps__nav button{width:100%;background:none;border:0;cursor:pointer;color:var(--cream-55);
  font-family:var(--display);font-size:clamp(17px,1.8vw,25px);line-height:1.2;text-align:left;
  min-height:clamp(58px,6.3vw,84px);padding:0;display:flex;gap:1em;align-items:center;
  transition:color .45s var(--ease),padding-left .55s var(--ease)}
.steps__nav em{font-family:var(--body);font-style:normal;font-size:11px;letter-spacing:.2em;
  flex:0 0 auto;opacity:.7}
.steps__nav button:hover{color:var(--cream);padding-left:10px}
.steps__nav button.is-on{color:var(--cream);padding-left:14px}
.steps__nav li{position:relative}
.steps__nav li::after{content:"";position:absolute;left:0;bottom:-1px;height:1px;width:0;
  background:var(--cream);transition:width .7s var(--ease)}
.steps__nav button.is-on ~ span,.steps__nav li:has(button.is-on)::after{width:100%}

.steps__panel{border:1px solid var(--cream-22);padding:clamp(20px,2.4vw,34px);
  display:grid;grid-template-rows:auto auto auto 1fr;gap:.6em;
  height:calc(4 * clamp(58px,6.3vw,84px) + 2px)}
.steps__count{font-size:11px;letter-spacing:.2em;color:var(--cream-55)}
.steps__count b{font-family:var(--display);font-weight:400;font-size:25px;color:var(--cream)}
.steps__panel h3{font-family:var(--display);font-weight:400;
  font-size:clamp(20px,2.3vw,33px);line-height:1.08;
  min-height:2.16em}                      /* always two lines tall */
.steps__panel>p{color:var(--cream-75);max-width:42ch;align-self:start;font-size:15px;
  min-height:calc(3 * 1.6em)}            /* always three lines tall */
.steps__arrows{display:flex;gap:10px;align-self:end}
.steps__btn{width:40px;height:40px;border:1px solid var(--cream-22);background:none;
  color:var(--cream);cursor:pointer;font-size:15px;line-height:1;border-radius:50%;
  display:grid;place-items:center;
  transition:background .45s var(--ease),border-color .45s var(--ease),opacity .3s}
.steps__btn:hover:not(:disabled){background:var(--cream-08);border-color:var(--cream)}
.steps__btn:disabled{opacity:.3;cursor:not-allowed}
.is-fading{opacity:0;transform:translateY(10px)}
#stTitle,#stText,.steps__count{transition:opacity .3s var(--ease),transform .3s var(--ease)}

/* ===== preu: editorial, sticky statement ===== */
.preu__grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:clamp(28px,4.5vw,84px);
  align-items:start}
.preu__aside{position:static}
.preu__intro{color:var(--red-75);max-width:34ch;margin-top:clamp(20px,2.4vw,34px);
  font-size:clamp(16px,1.4vw,20px)}
.preu__list{display:grid}
.preu__list article{border-top:1px solid var(--red-16);padding:clamp(18px,2.4vw,36px) 0;
  display:grid;gap:.7em;position:relative}
.preu__list article:last-child{border-bottom:1px solid var(--red-16)}
.preu__list h3{font-family:var(--display);font-weight:400;
  font-size:clamp(22px,2.6vw,38px);line-height:1.1;max-width:18ch}
.preu__list p{color:var(--red-75);max-width:42ch}

@media (max-width:900px){
  .steps__body,.preu__grid{grid-template-columns:1fr}
}


/* ===== ground-aware variants =====================================
   preu is written for the cream ground and cta for the red one;
   these let either sit on either, so the bands can alternate. */
.sec--dark .preu__intro,
.sec--dark .preu__list p{color:var(--cream-75)}
.sec--dark .preu__list article{border-top-color:var(--cream-22)}
.sec--dark .preu__list article:last-child{border-bottom-color:var(--cream-22)}
.sec--dark .preu__list li:hover::after{background:var(--cream)}

.sec--light .cta__note{color:var(--red-75)}
.sec--light .cta__link{border-bottom-color:var(--red-16)}
.sec--light .cta__link:hover{border-bottom-color:var(--red)}