/* ===========================================================
   GRID SYSTEM — Swiss / International Typographic Style
   Light theme · obsessive precision · one red accent
   =========================================================== */
:root{
  --paper:#f2f0ea;
  --paper-2:#eae7df;
  --ink:#15151a;
  --ink-70:#55555c;
  --ink-45:#68686f;
  --red:#e0301e;
  --line:rgba(21,21,26,.14);
  --line-2:rgba(21,21,26,.28);
  --max:1280px;
  --pad:clamp(20px,5vw,64px);
  --gutter:clamp(14px,1.7vw,24px);
  --ease:cubic-bezier(.22,1,.36,1);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sans:"Inter",system-ui,-apple-system,Segoe UI,Roboto,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-weight:400;
  line-height:1.5;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
em{font-style:normal}
h1,h2,h3{font-weight:600}
::selection{background:var(--red);color:var(--paper)}

.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:fixed;left:12px;top:-60px;z-index:400;background:var(--ink);color:var(--paper);
  padding:10px 16px;font-family:var(--mono);font-size:.78rem;letter-spacing:.04em;border-radius:2px;
  transition:top .25s var(--ease)}
.skip:focus{top:12px}

kbd{font-family:var(--mono);font-size:.82em;border:1px solid var(--line-2);border-radius:3px;
  padding:1px 6px;background:var(--paper);line-height:1;color:var(--ink)}

/* ===================== NAV ===================== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;
  padding:16px var(--pad);
  background:rgba(242,240,234,0);
  border-bottom:1px solid transparent;
  transition:background .4s var(--ease),border-color .4s var(--ease),padding .4s var(--ease);
}
.nav.scrolled{
  background:rgba(242,240,234,.85);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
  padding-top:12px;padding-bottom:12px;
}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:600;font-size:.95rem;
  letter-spacing:-.01em;line-height:1}
.brand-ico{color:var(--red);flex:none}
.brand-name{letter-spacing:.02em}
.brand-reg{font-size:.6rem;color:var(--ink-45);align-self:flex-start;margin-top:1px}
.nav-links{display:flex;align-items:center;gap:clamp(16px,2.4vw,34px)}
.nav-links>a{font-family:var(--mono);font-size:.76rem;letter-spacing:.02em;color:var(--ink-70);
  padding:4px 0;position:relative;transition:color .3s}
.nav-links>a::after{content:"";position:absolute;left:0;right:100%;bottom:0;height:1px;
  background:var(--red);transition:right .35s var(--ease)}
.nav-links>a:hover{color:var(--ink)}
.nav-links>a:hover::after{right:0}

.grid-toggle{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--ink);background:none;border:1px solid var(--line-2);border-radius:2px;
  padding:6px 9px 6px 8px;cursor:pointer;
  transition:border-color .3s var(--ease),background .3s var(--ease);
}
.grid-toggle:hover{border-color:var(--ink)}
.gt-dot{width:9px;height:9px;border:1px solid var(--ink);flex:none;
  transition:background .3s var(--ease),border-color .3s var(--ease)}
.gt-key{font-size:.6rem;color:var(--ink-45);border:1px solid var(--line);border-radius:2px;padding:1px 4px;line-height:1}
html.grid-on .grid-toggle{border-color:var(--red)}
html.grid-on .gt-dot{background:var(--red);border-color:var(--red)}

/* ===================== LAYOUT HELPERS ===================== */
.wrap{max-width:var(--max);margin:0 auto;padding-inline:var(--pad);width:100%}
section{padding-block:clamp(78px,11vh,150px)}
.sec-head{margin-bottom:clamp(40px,6vh,72px)}
.kicker{font-family:var(--mono);font-size:.74rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--red);margin-bottom:1.1rem}
h2{font-size:clamp(2rem,5.2vw,3.9rem);line-height:1.02;letter-spacing:-.03em}
.sec-note{margin-top:1.4rem;color:var(--ink-70);font-size:1rem;max-width:52ch}

/* ===================== HERO ===================== */
.hero{position:relative;min-height:100svh;display:flex;flex-direction:column;justify-content:center;
  padding-top:clamp(120px,17vh,180px);padding-bottom:0}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gutter);align-items:end;flex:1}
.hero-lead{grid-column:1 / span 8;align-self:center}
.hero-meta{grid-column:9 / span 4;align-self:end;padding-bottom:6px}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;
  color:var(--ink-70);margin-bottom:1.8rem}
.hero-title{font-size:clamp(3rem,10.5vw,9rem);line-height:.92;letter-spacing:-.045em;font-weight:600}
.hero-title .line{display:block;overflow:hidden}
.hero-title .line>span{display:inline-block}
.hero-title em{color:var(--red)}
.hero-sub{max-width:36ch;margin-top:2.2rem;font-size:clamp(1rem,1.35vw,1.18rem);color:var(--ink-70);line-height:1.5}

.meta{border-top:1px solid var(--ink)}
.meta-row{display:flex;justify-content:space-between;align-items:baseline;gap:14px;
  padding:11px 0;border-bottom:1px solid var(--line);
  font-family:var(--mono);font-size:.76rem;letter-spacing:.02em}
.meta-row dt{color:var(--ink-45);text-transform:uppercase;letter-spacing:.08em;white-space:nowrap}
.meta-row dd{color:var(--ink);text-align:right}

.hero-foot{display:flex;align-items:center;gap:clamp(14px,2vw,28px);
  padding-block:22px;margin-top:clamp(32px,5vh,56px);
  border-top:1px solid var(--line);
  font-family:var(--mono);font-size:.72rem;letter-spacing:.04em;color:var(--ink-70);text-transform:uppercase}
.hf-line{flex:1;height:1px;background:var(--line)}
.hf-b{white-space:nowrap}

/* ===================== PROJECT TABLE ===================== */
.index-sec{border-top:1px solid var(--line)}
.table-scroll{width:100%}
.p-table{width:100%;display:block}
.p-table thead,.p-table tbody{display:block}
.p-table thead th{
  font-family:var(--mono);font-size:.72rem;font-weight:500;letter-spacing:.08em;text-transform:uppercase;
  color:var(--ink-45);text-align:left;padding:0 10px 14px}
.t-head-row{border-bottom:1px solid var(--ink)}
.t-head-row .t-year,.t-head-row .t-area{text-align:right}

/* shared column template — overridden together in media queries */
.p-row,.t-head-row{display:grid;grid-template-columns:7% 33% 22% 18% 8% 12%;align-items:center}
.t-head-row{align-items:end}

.p-group{border:0}
.p-row{cursor:pointer;position:relative;outline:none}
.p-row>td{padding:22px 10px;border-top:1px solid var(--line);
  transition:background .35s var(--ease),color .35s var(--ease);
  display:flex;align-items:center}
.p-row>.t-year,.p-row>.t-area{justify-content:flex-end}
.p-group:first-of-type .p-row>td{border-top:0}

.t-no{font-family:var(--mono);font-size:.82rem;color:var(--ink-45)}
.no-flip{display:inline-block;overflow:hidden;height:1.15em;line-height:1.15em}
.no-flip b{display:block;font-weight:500;transition:transform .5s var(--ease)}
.no-flip b:last-child{color:var(--red)}
.t-name{font-size:clamp(1.15rem,2.2vw,1.7rem);font-weight:500;letter-spacing:-.02em;line-height:1.1}
.t-loc,.t-type,.t-year{font-family:var(--mono);font-size:.82rem;color:var(--ink-70);letter-spacing:.01em}
.t-area{font-family:var(--mono);font-size:.86rem;color:var(--ink);font-variant-numeric:tabular-nums;
  transition:color .35s var(--ease)}

/* hover / focus / open row states */
.p-group:hover .p-row>td,
.p-group:focus-within .p-row>td,
.p-group.open .p-row>td{background:var(--paper-2)}
.p-group:hover .t-no,
.p-group:focus-within .t-no,
.p-group.open .t-no{box-shadow:inset 3px 0 0 var(--red)}
.p-group:hover .no-flip b,
.p-group:focus-within .no-flip b,
.p-group.open .no-flip b{transform:translateY(-1.15em)}
.p-group:hover .t-area,
.p-group:focus-within .t-area,
.p-group.open .t-area{color:var(--red)}

/* expanding detail strip */
.p-detail{display:block}
.p-detail>td{padding:0 10px;border:0;display:block}
.p-exp{display:grid;grid-template-rows:0fr;transition:grid-template-rows .5s var(--ease)}
.p-exp-inner{overflow:hidden;min-height:0}
.p-exp-c{padding:0 0 26px;opacity:0;transform:translateY(6px);
  transition:opacity .4s var(--ease) .05s,transform .4s var(--ease) .05s}
.p-group:hover .p-exp,
.p-group:focus-within .p-exp,
.p-group.open .p-exp{grid-template-rows:1fr}
.p-group:hover .p-exp-c,
.p-group:focus-within .p-exp-c,
.p-group.open .p-exp-c{opacity:1;transform:none}
.p-note{font-size:1.02rem;color:var(--ink);max-width:64ch;line-height:1.5;padding-left:clamp(0px,7%,84px)}
.p-arrow{color:var(--red);margin-right:.4em;font-family:var(--mono)}
.p-meta{display:flex;flex-wrap:wrap;gap:8px 40px;margin-top:16px;padding-left:clamp(0px,7%,84px)}
.p-meta div{display:flex;flex-direction:column;gap:3px}
.p-meta dt{font-family:var(--mono);font-size:.66rem;letter-spacing:.1em;text-transform:uppercase;color:var(--ink-45)}
.p-meta dd{font-family:var(--mono);font-size:.8rem;color:var(--ink-70)}

/* ===================== APPROACH (12-col) ===================== */
.approach{border-top:1px solid var(--line)}
.rules{list-style:none;display:grid;grid-template-columns:repeat(12,1fr);gap:0 var(--gutter)}
.rule{grid-column:span 4;display:flex;flex-direction:column;gap:14px;
  padding:26px 0 34px;border-top:1px solid var(--ink)}
.r-top{display:flex;justify-content:space-between;align-items:baseline;
  font-family:var(--mono);font-size:.72rem;letter-spacing:.06em}
.r-no{color:var(--red);font-weight:500}
.r-col{color:var(--ink-45);text-transform:uppercase}
.rule h3{font-size:clamp(1.3rem,2.4vw,1.85rem);letter-spacing:-.02em;line-height:1.05;margin-top:4px;
  transition:color .3s var(--ease)}
.rule p{color:var(--ink-70);max-width:34ch;font-size:.98rem;line-height:1.5}
.rule:hover h3{color:var(--red)}

/* ===================== PULL QUOTE ===================== */
.quote{border-top:1px solid var(--line);padding-block:clamp(96px,17vh,200px)}
.pq{font-size:clamp(2.1rem,6.6vw,5.4rem);font-weight:600;letter-spacing:-.035em;line-height:1.02;
  max-width:18ch;margin-top:1rem}
.pq em{color:var(--red)}
.q-attr{margin-top:2rem;font-family:var(--mono);font-size:.8rem;letter-spacing:.04em;color:var(--ink-45)}

/* ===================== FOOTER ===================== */
.footer{border-top:1px solid var(--ink);padding-block:clamp(64px,9vh,110px) 36px;background:var(--paper)}
.foot-grid{display:grid;grid-template-columns:1.25fr 1fr;gap:clamp(32px,6vw,80px);align-items:start}
.foot-head{font-size:clamp(2.2rem,6.4vw,5rem);letter-spacing:-.035em;line-height:.98;margin:1.2rem 0 2rem}
.foot-head em{color:var(--red)}
.foot-mail{display:inline-block;font-size:clamp(1.15rem,2.4vw,1.9rem);font-weight:500;letter-spacing:-.02em;
  border-bottom:1px solid var(--line-2);padding-bottom:3px;transition:color .3s,border-color .3s}
.foot-mail:hover{color:var(--red);border-color:var(--red)}

.enquiry label{display:block;font-family:var(--mono);font-size:.72rem;letter-spacing:.08em;
  text-transform:uppercase;color:var(--ink-45);margin-bottom:12px}
.field{display:flex;align-items:center;border-bottom:1px solid var(--ink);max-width:340px}
.field input{flex:1;background:none;border:0;color:var(--ink);font-family:var(--sans);font-size:1rem;
  padding:9px 0;outline:none}
.field input::placeholder{color:var(--ink-45)}
.field button{background:none;border:0;color:var(--red);font-size:1.3rem;cursor:pointer;padding:6px 2px 6px 10px;line-height:1}
.foot-cols{display:grid;grid-template-columns:1fr 1fr;gap:26px 24px;margin-top:38px}
.foot-cols dt{font-family:var(--mono);font-size:.68rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--red);margin-bottom:8px}
.foot-cols dd{font-family:var(--mono);font-size:.8rem;color:var(--ink-70);line-height:1.6}

.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:clamp(48px,7vh,84px);padding-top:22px;border-top:1px solid var(--line);
  font-family:var(--mono);font-size:.74rem;letter-spacing:.03em;color:var(--ink-45)}
.foot-bottom a{color:var(--ink-70);border-bottom:1px solid var(--line)}
.foot-bottom a:hover{color:var(--red);border-color:var(--red)}
.fb-coord{margin-left:auto}

/* ===================== SIGNATURE: GRID OVERLAY ===================== */
.grid-overlay{position:fixed;inset:0;z-index:60;pointer-events:none;overflow:hidden;
  opacity:0;visibility:hidden;transition:opacity .4s var(--ease),visibility .4s var(--ease)}
html.grid-on .grid-overlay{opacity:1;visibility:visible}
.go-cols{position:absolute;top:0;bottom:0;left:50%;transform:translateX(-50%);
  width:min(100%,var(--max));padding-inline:var(--pad);
  display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gutter)}
.go-cols span{background:rgba(224,48,30,.05)}
.go-baseline{position:absolute;inset:0;
  background-image:repeating-linear-gradient(to bottom,
    rgba(21,21,26,.07) 0,rgba(21,21,26,.07) 1px,transparent 1px,transparent 32px);
  background-position:0 var(--bl,0px)}
.go-corner{position:absolute;width:16px;height:16px;border:0 solid var(--red)}
.go-corner.tl{top:12px;left:12px;border-top-width:1px;border-left-width:1px}
.go-corner.tr{top:12px;right:12px;border-top-width:1px;border-right-width:1px}
.go-corner.bl{bottom:12px;left:12px;border-bottom-width:1px;border-left-width:1px}
.go-corner.br{bottom:12px;right:12px;border-bottom-width:1px;border-right-width:1px}
.go-cross{position:absolute;inset:0;opacity:0;transition:opacity .3s var(--ease)}
html.grid-on .go-cross.active{opacity:1}
.go-cross .gx{position:absolute;left:0;right:0;top:0;height:1px;background:rgba(224,48,30,.4);
  transform:translateY(var(--cy,-1px))}
.go-cross .gy{position:absolute;top:0;bottom:0;left:0;width:1px;background:rgba(224,48,30,.4);
  transform:translateX(var(--cx,-1px))}
.go-cross .gc-read{position:absolute;top:0;left:0;transform:translate(var(--cx,0),var(--cy,0));
  margin:8px 0 0 10px;font-family:var(--mono);font-size:.66rem;letter-spacing:.06em;color:var(--red);
  background:rgba(242,240,234,.86);padding:2px 6px;border:1px solid rgba(224,48,30,.3);white-space:nowrap}

.grid-hud{position:fixed;left:var(--pad);bottom:20px;z-index:90;display:flex;flex-direction:column;gap:3px;
  font-family:var(--mono);font-size:.68rem;letter-spacing:.06em;color:var(--ink-70);
  background:rgba(242,240,234,.86);-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  border:1px solid var(--line);border-left:2px solid var(--red);padding:10px 13px;
  opacity:0;visibility:hidden;transition:opacity .4s var(--ease),visibility .4s var(--ease)}
html.grid-on .grid-hud{opacity:1;visibility:visible}
.grid-hud b{color:var(--ink);font-weight:500}

/* ===================== REVEALS (JS-gated) ===================== */
.js .reveal{opacity:0;transform:translateY(22px)}
.js .reveal.is-in{opacity:1;transform:none;transition:opacity .85s var(--ease),transform .85s var(--ease)}

/* hero intro — CSS/compositor driven via .loaded */
.js .hero-title .line>span{transform:translateY(112%);transition:transform 1.05s var(--ease)}
.js .hero .reveal{transform:translateY(18px);transition:opacity .9s var(--ease),transform .9s var(--ease)}
.hero.loaded .hero-title .line>span{transform:translateY(0)}
.hero.loaded .reveal{opacity:1;transform:none}
.hero .eyebrow{transition-delay:.08s}
.hero .line:nth-of-type(1)>span{transition-delay:.20s}
.hero .line:nth-of-type(2)>span{transition-delay:.30s}
.hero .line:nth-of-type(3)>span{transition-delay:.40s}
.hero .hero-sub{transition-delay:.54s}
.hero .meta-row:nth-child(1){transition-delay:.50s}
.hero .meta-row:nth-child(2){transition-delay:.56s}
.hero .meta-row:nth-child(3){transition-delay:.62s}
.hero .meta-row:nth-child(4){transition-delay:.68s}
.hero .meta-row:nth-child(5){transition-delay:.74s}

/* ===================== FOCUS ===================== */
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--red);outline-offset:3px;border-radius:1px}
.p-row:focus-visible{outline:2px solid var(--red);outline-offset:-2px}

/* ===================== RESPONSIVE ===================== */
@media (max-width:1000px){
  .hero-lead{grid-column:1 / span 12}
  .hero-meta{grid-column:1 / span 12;align-self:auto;margin-top:clamp(36px,6vh,60px)}
  .rule{grid-column:span 6}
}
@media (max-width:760px){
  .nav-links>a:nth-child(1),.nav-links>a:nth-child(2){display:none} /* keep Guide + Grid */
  .t-type{display:none}
  .p-row,.t-head-row{grid-template-columns:14% 1fr 24% 10% 14%}
}
@media (max-width:640px){
  .t-loc{display:none}
  .p-row,.t-head-row{grid-template-columns:16% 1fr 14% 20%}
  .t-name{font-size:1.15rem}
  .p-note,.p-meta{padding-left:0}
  .rule{grid-column:span 12}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{gap:8px}
  .fb-coord{margin-left:0;width:100%}
  .grid-hud{font-size:.62rem;padding:8px 10px}
}
@media (max-width:400px){
  .p-row,.t-head-row{grid-template-columns:22% 1fr 26%}
  .t-year{display:none}
  .foot-cols{grid-template-columns:1fr}
}

/* ===================== REDUCED MOTION ===================== */
@media (prefers-reduced-motion:reduce){
  .reveal,.js .reveal,.js .hero .reveal{opacity:1 !important;transform:none !important}
  .js .hero-title .line>span{transform:none !important}
  .no-flip b,.p-exp,.p-exp-c,.p-row>td,.t-area,.grid-overlay,.grid-hud,.nav{transition:none !important}
  .go-cross{display:none}
  *{scroll-behavior:auto !important}
}