/* ============================================================
   IMPAC PROJECTS — Concept B "On Site"
   Image-led, immersive. Shares fonts/images with Concept A.
   ============================================================ */

@font-face{font-family:'Archivo';font-style:normal;font-weight:400;font-display:swap;src:url(../fonts/Archivo-400.woff2) format('woff2');}
@font-face{font-family:'Archivo';font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/Archivo-500.woff2) format('woff2');}
@font-face{font-family:'Archivo';font-style:normal;font-weight:600;font-display:swap;src:url(../fonts/Archivo-600.woff2) format('woff2');}
@font-face{font-family:'Archivo';font-style:normal;font-weight:700;font-display:swap;src:url(../fonts/Archivo-700.woff2) format('woff2');}

:root{
  --paper:#F3F1EC;
  --ink:#171613;
  --ink-soft:#5A574D;
  --charcoal:#141311;
  --charcoal-2:#1D1C18;
  --vermilion:#F4501E;
  --line:#DAD6CC;
  --line-dark:#33312B;
  --sans:'Archivo','Segoe UI',sans-serif;
  --pad:clamp(1.25rem,4vw,3rem);
  --band:clamp(5.5rem,11vw,9.5rem);
  --radius:12px;
}

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important;}
}
html,body{overflow-x:clip;}
body{
  font-family:var(--sans);
  background:var(--paper);
  color:var(--ink);
  font-size:1.0625rem;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;}
:focus-visible{outline:3px solid var(--vermilion);outline-offset:3px;}

.wrap{max-width:1240px;margin-inline:auto;padding-inline:var(--pad);}

.eyebrow{
  font-size:.85rem;font-weight:600;letter-spacing:.02em;
  color:var(--vermilion);
  display:flex;align-items:center;gap:.5rem;
}
.eyebrow::before{
  content:"";width:.6rem;height:.7rem;background:var(--vermilion);
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
}

.display{
  font-weight:500;text-transform:uppercase;letter-spacing:-.015em;line-height:1.06;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  background:var(--vermilion);color:#fff;
  font-size:.95rem;font-weight:700;letter-spacing:.01em;
  text-decoration:none;white-space:nowrap;line-height:1.2;
  padding:.9rem 1.7rem;border-radius:999px;
  border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s;
}
.btn:hover{background:#D63E11;}
.btn--light{background:#fff;color:var(--ink);}
.btn--light:hover{background:var(--paper);}
.btn--outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn--outline:hover{border-color:#fff;background:rgba(255,255,255,.08);}
.btn--dark-outline{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn--dark-outline:hover{background:var(--ink);color:var(--paper);}

/* ---------- header ---------- */
.topbar{
  position:fixed;inset:0 0 auto 0;z-index:50;
  background:linear-gradient(to bottom,rgba(10,10,8,.55),rgba(10,10,8,0));
  transition:background .25s;
}
.topbar.solid{background:rgba(16,15,13,.9);backdrop-filter:blur(10px);}
.topbar-in{display:flex;align-items:center;gap:2rem;min-height:76px;}
.brand img{height:24px;width:auto;}
.nav{display:flex;gap:1.9rem;margin-left:auto;align-items:center;}
.nav a{
  font-size:.95rem;font-weight:600;letter-spacing:.01em;
  color:#fff;text-decoration:none;opacity:.9;
}
.nav a:hover{opacity:1;color:var(--vermilion);}
.nav .btn{padding:.6rem 1.3rem;font-size:.9rem;}
.nav-toggle{display:none;}

/* ---------- services dropdown ---------- */
.nav-sub{position:relative;}
.nav-sub>a{display:inline-flex;align-items:center;gap:.45rem;}
.nav-caret{
  width:.55rem;height:.4rem;background:currentColor;
  clip-path:polygon(0 0,100% 0,50% 100%);opacity:.7;
  transition:rotate .25s ease;
}
.nav-sub:hover .nav-caret{rotate:180deg;}
.nav-sub-menu{
  position:absolute;top:calc(100% + .9rem);left:50%;
  min-width:11.5rem;padding:.45rem;
  background:rgba(16,15,13,.96);backdrop-filter:blur(10px);
  border:1px solid var(--line-dark);border-radius:12px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;translate:-50% 8px;
  transition:opacity .2s ease,translate .2s ease,visibility .2s;
}
.nav-sub-menu::before{content:"";position:absolute;inset:auto 0 100% 0;height:1rem;}
.nav-sub:hover .nav-sub-menu,.nav-sub:focus-within .nav-sub-menu{
  opacity:1;visibility:visible;translate:-50% 0;
}
.nav-sub-menu a{padding:.6rem .95rem;border-radius:8px;font-size:.92rem;white-space:nowrap;}
.nav-sub-menu a:hover{background:rgba(255,255,255,.08);}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:100svh;
  display:flex;flex-direction:column;justify-content:flex-end;
  color:#fff;
}
.hero-bg{position:absolute;inset:0;overflow:hidden;}
.hero-bg img{width:100%;height:100%;object-fit:cover;}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,9,7,.9) 0%,rgba(10,9,7,.52) 45%,rgba(10,9,7,.38) 100%);
}
.hero-in{position:relative;width:100%;padding-bottom:clamp(2rem,5vh,4rem);}
.hero .eyebrow{color:#fff;margin-bottom:1.1rem;}
.hero .eyebrow::before{background:var(--vermilion);}
.hero h1{
  font-size:clamp(2.3rem,7vw,5.6rem);
  max-width:16ch;
  margin-bottom:1.2rem;
}
.hero p{
  font-size:clamp(1.05rem,1.5vw,1.25rem);
  max-width:36rem;color:rgba(255,255,255,.85);
  margin-bottom:2rem;
}
.hero-actions{display:flex;gap:1rem;flex-wrap:wrap;margin-bottom:clamp(2.2rem,5vh,3.5rem);}
.hero-facts{
  display:flex;gap:2.5rem;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.25);
  padding-top:1.4rem;
}
.hero-facts span{
  font-size:.9rem;font-weight:600;color:rgba(255,255,255,.9);
  display:flex;align-items:center;gap:.55rem;
}
.hero-facts span::before{
  content:"";width:.45rem;height:.55rem;background:var(--vermilion);
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
}

/* ---------- intro ---------- */
.intro{padding-block:var(--band);}
.intro-grid{
  display:grid;grid-template-columns:1.1fr .9fr;
  gap:clamp(2.5rem,6vw,5rem);
  align-items:center;
}
.intro h2{font-size:clamp(2rem,4vw,3.2rem);margin:1.1rem 0 1.3rem;}
.intro h2 em{font-style:normal;color:var(--vermilion);}
.intro-lede{color:var(--ink-soft);font-size:clamp(1.02rem,1.35vw,1.18rem);max-width:40rem;}
.intro-points{margin-top:2.1rem;border-top:1px solid var(--line);}
.intro-points>div{
  display:grid;grid-template-columns:minmax(11.5rem,13.5rem) 1fr;gap:.35rem 2rem;
  padding-block:1rem;border-bottom:1px solid var(--line);
}
.intro-points h3{font-size:.95rem;font-weight:700;display:flex;align-items:center;gap:.55rem;}
.intro-points h3::before{
  content:"";flex-shrink:0;width:.5rem;height:.6rem;background:var(--vermilion);
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
}
.intro-points p{font-size:.95rem;color:var(--ink-soft);}
.intro-link{
  display:inline-flex;align-items:center;gap:.6rem;
  margin-top:1.9rem;
  font-size:.98rem;font-weight:700;letter-spacing:.01em;
  color:var(--ink);text-decoration:none;
  transition:color .2s;
}
.intro-link::after{
  content:"";width:.7rem;height:.82rem;background:var(--vermilion);
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
  transition:translate .25s ease;
}
.intro-link:hover{color:var(--vermilion);}
.intro-link:hover::after{translate:5px 0;}
.intro-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:2rem clamp(2rem,4vw,3.5rem);
  border-top:1px solid var(--line);
  margin-top:clamp(3rem,6vw,4.5rem);
  padding-top:clamp(1.9rem,3.5vw,2.8rem);
}
.intro-strip h3{font-size:.95rem;font-weight:700;display:flex;align-items:center;gap:.55rem;}
.intro-strip h3::before{
  content:"";flex-shrink:0;width:.5rem;height:.6rem;background:var(--vermilion);
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
}
.intro-strip p{font-size:.95rem;color:var(--ink-soft);margin-top:.45rem;}
.intro-media.reveal{transition-delay:.15s;}
.intro-media img{width:100%;aspect-ratio:4/5;object-fit:cover;border-radius:var(--radius);}
.intro-caption{
  display:flex;align-items:center;gap:.55rem;
  margin-top:.85rem;
  font-size:.85rem;font-weight:600;color:var(--ink-soft);
}
.intro-caption::before{
  content:"";flex-shrink:0;width:.5rem;height:.6rem;background:var(--vermilion);
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
}

/* ---------- services (photo cards) ---------- */
.services{background:#fff;padding-block:var(--band);}
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;
  margin-bottom:clamp(2.6rem,5vw,3.8rem);flex-wrap:wrap;
}
.sec-head h2{font-size:clamp(1.9rem,3.8vw,3.1rem);margin-top:1rem;}
.sec-head p{color:var(--ink-soft);max-width:26rem;}
.svc-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:clamp(1.2rem,2.5vw,2rem);
}
.svc-card{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--radius);
  aspect-ratio:16/11;
  color:#fff;text-decoration:none;
  isolation:isolate;
}
.svc-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:scale .6s ease;z-index:-2;
}
.svc-card::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(to top,rgba(10,9,7,.85) 0%,rgba(10,9,7,.15) 55%,rgba(10,9,7,.05) 100%);
  transition:background .3s;
}
.svc-card:hover img{scale:1.05;}
.svc-card-in{
  position:absolute;inset:auto 0 0 0;
  padding:1.6rem 1.7rem;
  display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;
}
.svc-card h3{
  font-weight:500;text-transform:uppercase;letter-spacing:-.01em;
  font-size:clamp(1.3rem,2.2vw,1.8rem);line-height:1.1;
}
.svc-card p{
  color:rgba(255,255,255,.85);font-size:.95rem;max-width:30rem;
  margin-top:.4rem;
}
.svc-arrow{
  flex-shrink:0;width:2.7rem;height:2.7rem;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.14);backdrop-filter:blur(4px);
  transition:background .25s;
}
.svc-card:hover .svc-arrow{background:var(--vermilion);}
.svc-arrow::before{
  content:"";width:.7rem;height:.82rem;background:#fff;
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
}

/* ---------- process (build programme) ---------- */
.process{background:var(--charcoal);color:var(--paper);padding-block:var(--band);}
.process .sec-head p{color:#A9A599;}
.process .step{border-color:rgba(255,255,255,.28);}
.process .step-n{color:#8B887D;}
.process .step p{color:#A9A599;}
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:1.6rem;
}
.step{
  position:relative;
  border-top:2px solid var(--ink);
  padding:1.6rem 2.2rem 0 0;
}
.step::before{
  content:"";position:absolute;top:0;left:0;
  translate:0 -50%;
  width:.85rem;height:1rem;background:var(--vermilion);
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
}
.step-n{
  display:block;
  font-size:.82rem;font-weight:600;color:var(--ink-soft);
  margin-bottom:.4rem;
}
.step h3{font-weight:600;font-size:1.15rem;margin-bottom:.5rem;}
.step p{font-size:.95rem;color:var(--ink-soft);}

/* ---------- work (horizontal gallery) ---------- */
.work{background:#fff;padding-block:var(--band);}
.worklist{position:relative;border-bottom:1px solid var(--line);}
.worklist-row{
  display:grid;grid-template-columns:1fr auto;
  align-items:center;gap:1.5rem;
  padding:1.5rem .9rem;
  border-top:1px solid var(--line);
  text-decoration:none;
  border-radius:10px;
  transition:background .25s;
}
.worklist-row:hover{background:rgba(23,22,19,.05);}
.wl-main{min-width:0;}
.wl-titleline{display:inline-flex;align-items:center;gap:.6rem;}
.wl-title{
  position:relative;
  font-weight:600;font-size:clamp(1.15rem,1.8vw,1.45rem);
  letter-spacing:-.01em;line-height:1.3;
}
.wl-title::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;
  background:var(--vermilion);
  transition:width .3s ease;
}
.worklist-row:hover .wl-title::after{width:100%;}
.wl-arrow{
  width:.7rem;height:.82rem;background:var(--vermilion);
  clip-path:polygon(0 0,55% 0,100% 50%,55% 100%,0 100%,42% 50%);
  opacity:0;translate:-8px 0;
  transition:opacity .3s ease,translate .3s ease;
}
.worklist-row:hover .wl-arrow{opacity:1;translate:0 0;}
.wl-desc{display:block;color:var(--ink-soft);font-size:.95rem;margin-top:.25rem;}
.wl-tag{
  font-size:.82rem;font-weight:600;color:var(--ink-soft);
  border:1px solid var(--line);border-radius:999px;
  padding:.4rem .9rem;white-space:nowrap;
  transition:color .25s,border-color .25s;
}
.worklist-row:hover .wl-tag{color:var(--ink);border-color:var(--ink);}
.wl-thumb{display:none;}
.work-float{
  position:absolute;top:0;left:0;z-index:5;
  width:min(320px,32vw);aspect-ratio:3/2;
  border-radius:var(--radius);overflow:hidden;
  box-shadow:0 28px 56px -16px rgba(12,11,9,.45);
  opacity:0;scale:.85;
  transition:opacity .3s cubic-bezier(.4,0,.2,1),scale .3s cubic-bezier(.4,0,.2,1);
  pointer-events:none;
  will-change:transform;
}
.work-float.on{opacity:1;scale:1;}
.work-float img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  opacity:0;filter:blur(10px);scale:1.1;
  transition:opacity .45s ease,filter .45s ease,scale .45s ease;
}
.work-float img.on{opacity:1;filter:none;scale:1;}
@media (hover:none),(prefers-reduced-motion:reduce){
  .work-float{display:none;}
  .wl-thumb{
    display:block;width:74px;height:74px;flex-shrink:0;
    border-radius:10px;overflow:hidden;
  }
  .wl-thumb img{width:100%;height:100%;object-fit:cover;}
  .worklist-row{grid-template-columns:auto 1fr auto;}
}
.work-more{display:flex;justify-content:center;margin-top:clamp(2rem,4vw,3rem);}

/* ---------- portfolio grid (home) ---------- */
.pf-grid{
  display:grid;grid-template-columns:repeat(12,1fr);
  grid-auto-rows:clamp(15rem,32vw,24rem);
  gap:clamp(1.2rem,2.5vw,2rem);
}
.pf-card{
  position:relative;display:block;overflow:hidden;
  grid-column:span 5;
  border-radius:var(--radius);
  color:#fff;text-decoration:none;
  isolation:isolate;
}
.pf-card--wide{grid-column:span 7;}
.pf-card img{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  transition:scale .6s ease;z-index:-2;
}
.pf-card::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(to top,rgba(10,9,7,.85) 0%,rgba(10,9,7,.15) 55%,rgba(10,9,7,.05) 100%);
}
.pf-card:hover img{scale:1.05;}
.pf-tag{
  position:absolute;top:1.1rem;left:1.1rem;
  font-size:.8rem;font-weight:600;letter-spacing:.02em;
  background:rgba(16,15,13,.45);backdrop-filter:blur(6px);
  border:1px solid rgba(255,255,255,.28);
  border-radius:999px;padding:.32rem .85rem;
}
.pf-card-in{
  position:absolute;inset:auto 0 0 0;
  padding:1.5rem 1.6rem;
  display:flex;align-items:flex-end;justify-content:space-between;gap:1rem;
}
.pf-card h3{
  font-weight:500;text-transform:uppercase;letter-spacing:-.01em;
  font-size:clamp(1.25rem,2vw,1.7rem);line-height:1.1;
}
.pf-card p{
  color:rgba(255,255,255,.85);font-size:.93rem;max-width:30rem;
  margin-top:.35rem;
}
.pf-card:hover .svc-arrow{background:var(--vermilion);}

/* ---------- pillars ---------- */
.pillars{padding-block:var(--band);}
.pillar-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:clamp(1.2rem,2.5vw,2rem);
}
.pillar{
  border:1px solid var(--line);border-radius:var(--radius);
  padding:1.8rem 1.6rem 2rem;
  background:#fff;
}
.pillar .eyebrow{margin-bottom:1.2rem;}
.pillar h3{font-weight:600;font-size:1.15rem;margin-bottom:.5rem;}
.pillar p{font-size:.96rem;color:var(--ink-soft);}

/* ---------- CTA band ---------- */
.cta-band{background:var(--vermilion);color:#fff;padding-block:clamp(4rem,9vw,7rem);}
.cta-in{display:grid;grid-template-columns:1.2fr .8fr;gap:2.5rem;align-items:center;}
.cta-band h2{font-size:clamp(2.1rem,5vw,4rem);max-width:14ch;}
.cta-band p{color:rgba(255,255,255,.92);margin-top:1rem;max-width:30rem;}
.cta-actions{display:flex;flex-direction:column;gap:1rem;align-items:flex-start;justify-self:end;}
.cta-actions .btn{min-width:16rem;}
.cta-phones{display:flex;gap:1.6rem;flex-wrap:wrap;margin-top:.6rem;}
.cta-phones a{
  color:#fff;text-decoration:none;font-weight:700;font-size:1.05rem;
}
.cta-phones a span{display:block;font-weight:600;font-size:.8rem;color:rgba(255,255,255,.85);}
.cta-phones a:hover{text-decoration:underline;}

/* ---------- footer ---------- */
footer{background:var(--charcoal);color:var(--paper);}
.foot-in{
  display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap;
  padding-block:2.2rem;
}
.foot-in img{height:22px;width:auto;}
.foot-nav{display:flex;gap:1.5rem;}
.foot-nav a{font-size:.9rem;font-weight:600;text-decoration:none;}
.foot-nav a:hover{color:var(--vermilion);}
.foot-note{color:#8B887D;font-size:.85rem;font-weight:600;}

/* ---------- reveal ---------- */
.reveal{opacity:0;translate:0 24px;transition:opacity .6s ease,translate .6s ease;}
.reveal.in{opacity:1;translate:0 0;}
@media (prefers-reduced-motion:reduce){.reveal{opacity:1;translate:0 0;}}

/* ---------- responsive ---------- */
@media (max-width:960px){
  .intro-grid{grid-template-columns:1fr;gap:2.2rem;}
  .intro-points>div{grid-template-columns:1fr;}
  .intro-strip{grid-template-columns:1fr;gap:1.4rem;}
  .intro-media img{aspect-ratio:16/10;object-position:center 30%;}
  .svc-grid{grid-template-columns:1fr;}
  .svc-card{aspect-ratio:16/10;}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:2.5rem;}
  .pf-grid{grid-auto-rows:clamp(13rem,34vw,17rem);}
  .pf-card,.pf-card--wide{grid-column:span 6;}
  .pillar-grid{grid-template-columns:1fr;}
  .cta-in{grid-template-columns:1fr;}
  .cta-actions{justify-self:start;align-items:flex-start;}
}
@media (max-width:720px){
  .nav{
    display:none;
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(16,15,13,.97);
  }
  .nav.open{display:flex;}
  .nav a{padding:1rem var(--pad);border-bottom:1px solid var(--line-dark);}
  .nav .btn{margin:1rem var(--pad);border-radius:999px;}
  .nav-sub{position:static;}
  .nav-sub>a{display:flex;}
  .nav-caret{display:none;}
  .nav-sub-menu{
    position:static;translate:none;opacity:1;visibility:visible;
    background:none;border:0;border-radius:0;padding:0;min-width:0;transition:none;
  }
  .nav-sub-menu::before{display:none;}
  .nav-sub-menu a{padding-left:calc(var(--pad) + 1.2rem);}
  .nav-toggle{
    display:block;margin-left:auto;
    background:none;border:1px solid rgba(255,255,255,.6);border-radius:999px;
    padding:.55rem 1rem;cursor:pointer;
    font-family:var(--sans);font-size:.9rem;font-weight:600;color:#fff;
  }
  .topbar .nav-cta-bar{display:none;}
  .pf-grid{grid-auto-rows:clamp(13rem,56vw,16rem);}
  .pf-card,.pf-card--wide{grid-column:span 12;}
  .steps{grid-template-columns:1fr;row-gap:0;}
  .step{
    border-top:none;border-left:2px solid var(--ink);
    padding:0 0 2.2rem 1.6rem;
  }
  .step:last-child{padding-bottom:.5rem;}
  .step::before{top:.15rem;left:0;translate:-50% 0;}
  .wl-tag{display:none;}
}