/* ============================================================
   Your Brand — architecture & interiors studio (demo website)
   Heavy minimalism: hairlines instead of boxes, no radii, no
   shadows, no fills that aren't earth. Sunset palette, all
   desaturated. Motion is scroll-linked only (see script.js).
   ============================================================ */

:root{
  --bone:#f4efe8;
  --sand:#e9e0d3;
  --dust:#cdbfae;
  --clay:#b07a5c;
  --terra:#9a5c42;
  --sienna:#7d4331;
  --olive:#6d6a58;
  --plum:#4a3742;
  --dusk:#2e2430;
  --ink:#231d1f;
  --muted:#6f625d;
  --line:rgba(35,29,31,.16);
  --hair:rgba(35,29,31,.09);

  --serif:"Iowan Old Style","Palatino Linotype","Palatino","Book Antiqua",Georgia,serif;
  --sans:ui-sans-serif,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;

  --maxw:1240px;
  --pad:24px;
  --head:64px;
}

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

html{scroll-behavior:smooth;scroll-padding-top:90px}

body{
  margin:0;
  background:var(--bone);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3{margin:0;font-family:var(--serif);font-weight:400;letter-spacing:-.015em;line-height:1.08;text-wrap:balance}
h1{font-size:clamp(42px,6.6vw,104px);line-height:1.02}
h2{font-size:clamp(30px,4.2vw,58px)}
h3{font-size:clamp(21px,2.2vw,27px);line-height:1.2}
p{margin:0}
ul,ol,dl{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img,svg{display:block;max-width:100%}
button,input,textarea{font:inherit;color:inherit}
::selection{background:var(--clay);color:var(--bone)}
:focus-visible{outline:1px solid var(--terra);outline-offset:4px}

/* film grain over everything, very faint */
.grain{
  position:fixed;inset:0;z-index:90;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.8' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.label,.eyebrow{font-size:11.5px;font-weight:500;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.sec-head{max-width:820px;margin:0 auto clamp(48px,6vw,88px);padding:0 var(--pad)}
.sec-head .label{display:block;margin-bottom:22px}

/* ---------- header: thins to a hairline once you move ---------- */
.head{position:fixed;inset:0 0 auto;z-index:80;background:transparent}
.head-row{
  max-width:var(--maxw);margin:0 auto;height:var(--head);padding:0 var(--pad);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.head::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line);transform:scaleX(0);transform-origin:left}
.head.is-set{background:rgba(244,239,232,.92);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px)}
.head.is-set::after{transform:scaleX(1)}
.mark{display:flex;align-items:center;gap:11px;font-size:14px;letter-spacing:.04em}
.mark svg{width:22px;height:22px;color:var(--terra)}
.head-nav{display:flex;gap:26px;font-size:14px;color:var(--muted)}
.head-nav a{padding-bottom:3px;border-bottom:1px solid transparent}
.head-nav a:hover{color:var(--ink);border-bottom-color:var(--terra)}

/* ---------- ink reveal: words darken as they cross the screen ---------- */
.ink .w{color:rgba(35,29,31,.16)}
.ink .w.on{color:var(--ink)}
.studio .ink .w{color:rgba(244,239,232,.18)}
.studio .ink .w.on{color:var(--bone)}

/* ---------- hero: six layers ---------- */
.hero{position:relative;min-height:100svh;padding:calc(var(--head) + 4vh) var(--pad) 40px;overflow:hidden}
.sky{
  position:absolute;inset:-20% 0 0;pointer-events:none;
  background:linear-gradient(180deg,#e7d7c4 0%,#e3c6ab 32%,#d9ac90 56%,#c98f73 72%,#f4efe8 100%);
}
.sun{
  position:absolute;left:50%;top:38vh;width:min(46vw,440px);aspect-ratio:1;margin-left:min(-23vw,-220px);
  border-radius:50%;background:#c98256;opacity:.55;pointer-events:none;
}
.ridge{position:absolute;left:0;right:0;pointer-events:none}
.ridge svg{width:100%;height:100%}
.ridge-far{bottom:18vh;height:34vh}
.ridge-far path{fill:#b98f74;opacity:.5}
.ridge-near{bottom:0;height:30vh}
.ridge-near path{fill:#8e6a55;opacity:.62}

.plate{position:absolute;right:max(6vw,var(--pad));top:22vh;width:min(27vw,320px);margin:0}
.plate .ph{aspect-ratio:3/4.4}

.hero-copy{position:relative;max-width:var(--maxw);margin:0 auto;padding-top:14vh}
.hero-copy .eyebrow{display:block;margin-bottom:26px}
.hero-copy h1{max-width:13ch}
.hero-note{margin-top:30px;max-width:44ch;font-size:17px;color:var(--muted)}
.hero-foot{
  position:relative;max-width:var(--maxw);margin:clamp(48px,9vh,110px) auto 0;
  display:flex;align-items:center;gap:20px;font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);
}
.hero-rule{flex:1;height:1px;background:var(--line)}

/* image placeholder: replace the inner div with <img> when photos arrive */
.ph{position:relative;display:flex;flex-direction:column;justify-content:flex-end;gap:8px;padding:16px;background:var(--sand);overflow:hidden}
.ph::before{
  content:"";position:absolute;inset:0;
  background:repeating-linear-gradient(115deg,rgba(35,29,31,.05) 0 1px,transparent 1px 13px);
}
.ph-id{position:relative;align-self:flex-start;font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--terra)}
.ph-note{position:relative;max-width:40ch;font-size:12.5px;line-height:1.45;color:var(--muted)}
.ph-dark{background:#3a2e39}
.ph-dark::before{background:repeating-linear-gradient(115deg,rgba(244,239,232,.06) 0 1px,transparent 1px 13px)}
.ph-dark .ph-id{color:var(--clay)}
.ph-dark .ph-note{color:rgba(244,239,232,.5)}

/* ---------- statement ---------- */
.statement{max-width:1000px;margin:0 auto;padding:clamp(90px,14vh,170px) var(--pad)}
.statement-label{margin-bottom:34px;font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.statement-text{font-family:var(--serif);font-size:clamp(23px,3.1vw,40px);line-height:1.32;letter-spacing:-.01em}

/* ---------- index list ---------- */
.index{padding:clamp(60px,9vh,120px) 0}
.idx{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);border-top:1px solid var(--hair)}
.idx-row{border-bottom:1px solid var(--hair)}
.idx-btn{
  width:100%;padding:26px 0;display:grid;grid-template-columns:56px 1fr auto 76px;align-items:baseline;gap:20px;
  background:none;border:0;cursor:pointer;text-align:left;
}
.idx-no{font-size:12px;letter-spacing:.14em;color:var(--muted)}
.idx-name{font-family:var(--serif);font-size:clamp(22px,2.6vw,34px);transform:translateX(0)}
.idx-place,.idx-year{font-size:13px;letter-spacing:.06em;color:var(--muted)}
.idx-year{text-align:right}
.idx-btn:hover .idx-name,.idx-btn[aria-expanded="true"] .idx-name{transform:translateX(14px);color:var(--sienna)}
.idx-btn:hover .idx-place,.idx-btn[aria-expanded="true"] .idx-place{color:var(--ink)}
.idx-detail{display:grid;grid-template-rows:0fr}
.idx-detail > p{overflow:hidden;max-width:56ch;margin-left:76px;font-size:15.5px;color:var(--muted)}
.idx-row.is-open .idx-detail{grid-template-rows:1fr}
.idx-row.is-open .idx-detail > p{padding-bottom:28px}

/* ---------- stacked project panels ---------- */
.stack{padding:clamp(40px,6vh,80px) 0 0}
.panel{
  position:sticky;top:calc(var(--head) + 16px);min-height:calc(100svh - var(--head) - 16px);
  padding:0 var(--pad) 40px;background:var(--bone);
}
.panel-inner{
  max-width:var(--maxw);margin:0 auto;border-top:1px solid var(--line);
  display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(24px,4vw,56px);padding-top:26px;
  transform-origin:50% 12%;
}
.panel-plate .ph{aspect-ratio:16/10}
.panel-copy{display:flex;flex-direction:column;padding-bottom:8px}
.panel-copy .label{margin-bottom:20px}
.panel-copy > p:not(.label){margin-top:16px;max-width:38ch;color:var(--muted)}
.spec{margin-top:auto;padding-top:28px;display:flex;flex-wrap:wrap;gap:8px 40px}
.spec div{display:flex;flex-direction:column;gap:3px}
.spec dt{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted)}
.spec dd{margin:0;font-family:var(--serif);font-size:19px}

/* ---------- materials drift ---------- */
.mat{padding:clamp(80px,12vh,150px) 0;overflow:hidden}
.mat-label{display:block;max-width:var(--maxw);margin:0 auto 34px;padding:0 var(--pad)}
.mat-track{display:flex;gap:clamp(40px,6vw,96px);white-space:nowrap;padding:0 var(--pad);width:max-content}
.mat-item{display:flex;align-items:center;gap:14px;font-family:var(--serif);font-size:clamp(20px,2.4vw,30px);color:var(--muted)}
.mat-item i{width:clamp(34px,4vw,54px);height:clamp(34px,4vw,54px);background:var(--c)}

/* ---------- process ---------- */
.proc{padding:clamp(40px,6vh,80px) 0 clamp(80px,12vh,140px)}
.proc-body{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad);display:grid;grid-template-columns:1px 1fr;gap:clamp(28px,5vw,64px)}
.proc-rule{position:relative;background:var(--hair)}
.proc-rule span{position:absolute;inset:0 0 auto;height:0;background:var(--terra)}
.proc-list{display:grid;gap:clamp(40px,6vw,74px)}
.proc-list li{display:grid;grid-template-columns:76px 1fr;gap:clamp(16px,3vw,40px);align-items:start}
.proc-no{font-size:12px;letter-spacing:.14em;color:var(--muted);padding-top:6px}
.proc-text h3 + p{margin-top:12px;max-width:46ch;color:var(--muted)}

/* ---------- studio: layered dusk band ---------- */
.studio{position:relative;padding:clamp(90px,13vh,160px) var(--pad);color:var(--bone);overflow:hidden;background:var(--dusk)}
.studio-sky{position:absolute;inset:0;background:linear-gradient(180deg,#5b3f46 0%,#3d2f3a 46%,#2e2430 100%)}
.studio-ridge{position:absolute;left:0;right:0;bottom:0;height:30%;pointer-events:none}
.studio-ridge svg{width:100%;height:100%}
.studio-ridge path{fill:#241c26;opacity:.85}
.studio-inner{position:relative;max-width:var(--maxw);margin:0 auto;display:grid;grid-template-columns:.85fr 1.15fr;gap:clamp(32px,5vw,72px);align-items:center}
.studio-plate .ph{aspect-ratio:4/3}
.studio .label{color:rgba(244,239,232,.55)}
.studio-quote{margin-top:22px;font-family:var(--serif);font-size:clamp(22px,2.7vw,34px);line-height:1.28}
.studio-facts{margin-top:clamp(32px,5vw,52px);display:grid;grid-template-columns:repeat(4,auto);gap:20px 40px;justify-content:start}
.studio-facts dt{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:rgba(244,239,232,.5)}
.studio-facts dd{margin:4px 0 0;font-family:var(--serif);font-size:20px}

/* ---------- enquiry ---------- */
.enq{padding:clamp(90px,13vh,160px) 0 clamp(60px,9vh,110px)}
.enq-note{margin-top:24px;max-width:52ch;color:var(--muted)}
.enq-form{max-width:820px;margin:0 auto;padding:0 var(--pad);display:grid;grid-template-columns:1fr 1fr;gap:34px 40px}
.enq-form[hidden]{display:none}
.fld{display:flex;flex-direction:column;gap:9px}
.fld-wide{grid-column:1 / -1}
.fld > span{font-size:11.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted)}
.fld input,.fld textarea{
  width:100%;padding:8px 0;background:none;border:0;border-bottom:1px solid var(--line);
  font-family:var(--serif);font-size:20px;resize:vertical;
}
.fld input::placeholder,.fld textarea::placeholder{color:var(--dust);font-size:16px;font-family:var(--sans)}
.fld input:focus,.fld textarea:focus{outline:none;border-bottom-color:var(--terra)}
.fld input[aria-invalid="true"],.fld textarea[aria-invalid="true"]{border-bottom-color:var(--sienna)}
.enq-error{grid-column:1 / -1;font-size:14px;color:var(--sienna)}
.enq-error:empty{display:none}
.enq-send{grid-column:1 / -1;display:flex;flex-wrap:wrap;align-items:center;gap:14px 24px}
.btn{
  padding:14px 30px;cursor:pointer;background:none;color:var(--ink);
  border:1px solid var(--ink);font-size:13px;letter-spacing:.16em;text-transform:uppercase;
}
.btn:hover{background:var(--ink);color:var(--bone)}
.btn-quiet{border-color:var(--line)}
.enq-fine{font-size:13px;color:var(--muted)}
.enq-done{max-width:820px;margin:0 auto;padding:0 var(--pad)}
.enq-done[hidden]{display:none}
.enq-done-rule{width:64px;height:1px;margin-bottom:26px;background:var(--terra)}
.enq-done h3:focus{outline:none}
.enq-done > p{margin:14px 0 30px;max-width:46ch;color:var(--muted)}

/* ---------- footer ---------- */
.foot{max-width:var(--maxw);margin:0 auto;padding:0 var(--pad) 40px}
.foot-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px 40px;padding-top:28px;border-top:1px solid var(--line)}
.foot-brand{font-family:var(--serif);font-size:19px}
.foot-lines{display:flex;flex-wrap:wrap;gap:8px 28px;font-size:14px;color:var(--muted)}
.foot-lines a:hover{color:var(--ink);border-bottom:1px solid var(--terra)}
.foot-legal{display:flex;flex-wrap:wrap;justify-content:space-between;gap:6px 24px;margin-top:40px;font-size:12px;letter-spacing:.06em;color:var(--dust)}

/* ---------- narrow screens ---------- */
@media (max-width:900px){
  .plate{position:relative;right:auto;top:auto;width:min(58vw,260px);margin:40px 0 0 auto}
  .hero-copy{padding-top:6vh}
  .panel-inner{grid-template-columns:1fr;gap:22px}
  .panel{top:calc(var(--head) + 8px);min-height:0;padding-bottom:28px}
  .panel-plate .ph{aspect-ratio:16/9}
  .studio-inner{grid-template-columns:1fr}
  .studio-facts{grid-template-columns:repeat(2,auto)}
  .enq-form{grid-template-columns:1fr}
}
@media (max-width:620px){
  .head-nav{gap:16px;font-size:13px}
  .head-nav a:nth-child(3){display:none}
  .idx-btn{grid-template-columns:38px 1fr;gap:8px 14px;padding:20px 0}
  .idx-place{grid-column:2}
  .idx-year{display:none}
  .idx-detail > p{margin-left:52px}
  .idx-btn:hover .idx-name,.idx-btn[aria-expanded="true"] .idx-name{transform:translateX(6px)}
  .proc-list li{grid-template-columns:1fr;gap:10px}
  .proc-no{padding-top:0}
  .foot-legal{margin-top:28px}
}

/* ---------- reduced motion: everything holds still ---------- */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .ink .w{color:var(--ink)}
  .studio .ink .w{color:var(--bone)}
  .proc-rule span{height:100%}
  .panel{position:static}
}