/* DM Design Collective — building design studio
   Palette: ink black, off-white, copper/bronze. Premium architectural.
   Pure CSS. Mobile-first. 3D depth is the centrepiece. */

:root{
  --ink:#0c0c0e;
  --ink-2:#141417;
  --ink-3:#1c1c20;
  --off:#f4f1ea;
  --off-dim:#cbc6ba;
  --copper:#b8763e;
  --copper-bright:#d4934f;
  --copper-glow:rgba(184,118,62,.4);
  --line:rgba(244,241,234,.12);
  --serif:'Cormorant Garamond',Georgia,serif;
  --sans:'Inter','Helvetica Neue',Arial,sans-serif;
  --ease:cubic-bezier(.22,1,.36,1);
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--sans);
  background:var(--ink);
  color:var(--off);
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  position:relative;
}
/* film-grain / noise texture layer over the whole page — premium surface, not flat fill */
body::before{
  content:"";position:fixed;inset:0;z-index:1;pointer-events:none;opacity:.05;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  mix-blend-mode:overlay;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}

/* ---------- type ----------
   Display face: 'Cormorant Garamond' (architectural, editorial serif).
   Body face:    'Inter' (clean modern sans). A deliberate two-face pairing. */
h1,h2,h3{font-family:'Cormorant Garamond',Georgia,serif;font-weight:500;line-height:1.05;letter-spacing:-.01em}
body{font-family:'Inter','Helvetica Neue',Arial,sans-serif}
.eyebrow{
  font-family:var(--sans);font-size:.72rem;font-weight:600;
  letter-spacing:.28em;text-transform:uppercase;color:var(--copper);
}
.lead{font-size:1.05rem;color:var(--off-dim);max-width:46ch}

/* ---------- layout ---------- */
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
section{position:relative}
.pad{padding:88px 0}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 24px;
  background:rgba(12,12,14,.55);backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;transition:border-color .4s,background .4s;
}
.site-header.scrolled{border-bottom-color:var(--line);background:rgba(12,12,14,.9)}
.brand{display:flex;align-items:center;gap:12px;font-family:var(--serif);font-size:1.25rem;letter-spacing:.02em}
.brand .mark{
  width:34px;height:34px;flex:none;display:grid;place-items:center;
  border:1.5px solid var(--copper);color:var(--copper);
  font-family:var(--sans);font-weight:700;font-size:.85rem;transform:rotate(45deg);
}
.brand .mark span{transform:rotate(-45deg)}
.nav{display:none;gap:30px;font-size:.82rem;font-weight:500;letter-spacing:.02em}
.nav a{color:var(--off-dim);transition:color .25s;position:relative;padding:4px 0}
.nav a:hover,.nav a.active{color:var(--off)}
.nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:1px;background:var(--copper);transition:width .3s var(--ease)}
.nav a:hover::after,.nav a.active::after{width:100%}
.nav-cta{
  display:none;font-family:var(--sans);font-size:.78rem;font-weight:600;
  letter-spacing:.04em;padding:11px 22px;border:1px solid var(--copper);
  color:var(--copper);transition:.3s var(--ease);
}
.nav-cta:hover{background:var(--copper);color:var(--ink)}
.burger{width:30px;height:20px;position:relative;cursor:pointer;background:none;border:0}
.burger span{position:absolute;left:0;width:100%;height:2px;background:var(--off);transition:.3s var(--ease)}
.burger span:nth-child(1){top:0}
.burger span:nth-child(2){top:9px}
.burger span:nth-child(3){top:18px}
.burger.open span:nth-child(1){top:9px;transform:rotate(45deg)}
.burger.open span:nth-child(2){opacity:0}
.burger.open span:nth-child(3){top:9px;transform:rotate(-45deg)}
.mobile-nav{
  position:fixed;inset:0;z-index:45;background:var(--ink);
  display:flex;flex-direction:column;justify-content:center;gap:8px;padding:0 32px;
  transform:translateY(-100%);transition:transform .5s var(--ease);
}
.mobile-nav.open{transform:translateY(0)}
.mobile-nav a{font-family:var(--serif);font-size:2rem;color:var(--off);padding:8px 0;border-bottom:1px solid var(--line)}
.mobile-nav a .num{font-family:var(--sans);font-size:.7rem;color:var(--copper);vertical-align:super;margin-right:10px}

/* ---------- hero with 3D canvas ---------- */
.hero{
  min-height:100vh;display:flex;align-items:center;
  position:relative;overflow:hidden;background:var(--ink);
}
#hero-canvas{position:absolute;inset:0;width:100%;height:100%;z-index:1;opacity:.9}
.hero::after{ /* vignette + copper wash */
  content:"";position:absolute;inset:0;z-index:2;pointer-events:none;
  background:
    radial-gradient(120% 80% at 70% 30%,transparent 40%,var(--ink) 100%),
    linear-gradient(180deg,transparent 60%,var(--ink) 100%);
}
.hero-inner{position:relative;z-index:3;padding-top:80px}
.hero h1{font-size:clamp(2.8rem,9vw,6.2rem);margin:18px 0 24px}
.hero h1 .accent{color:var(--copper);font-style:italic}
.hero .lead{font-size:1.15rem;margin-bottom:36px}
.hero-meta{display:flex;gap:36px;margin-top:54px;flex-wrap:wrap}
.hero-meta .stat{border-left:1px solid var(--copper);padding-left:14px}
.hero-meta .stat b{display:block;font-family:var(--serif);font-size:2rem;line-height:1}
.hero-meta .stat span{font-size:.72rem;letter-spacing:.18em;text-transform:uppercase;color:var(--off-dim)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--sans);
  font-size:.82rem;font-weight:600;letter-spacing:.04em;
  padding:15px 30px;transition:.35s var(--ease);cursor:pointer;border:1px solid var(--copper);
}
.btn-primary{background:var(--copper);color:var(--ink)}
.btn-primary:hover{background:var(--copper-bright);transform:translateY(-2px);box-shadow:0 14px 40px var(--copper-glow)}
.btn-ghost{color:var(--off);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--copper);color:var(--copper)}
.btn .arrow{transition:transform .35s var(--ease)}
.btn:hover .arrow{transform:translateX(5px)}

/* ---------- section heading ---------- */
.sec-head{max-width:640px;margin-bottom:54px}
.sec-head h2{font-size:clamp(2rem,5vw,3.4rem);margin:14px 0 18px}

/* ---------- services grid (tilt cards) ---------- */
.services{background:var(--ink-2);position:relative}
.services::before{content:"";position:absolute;inset:0;background:url(../img/concrete-texture.png);opacity:.04;pointer-events:none}
.svc-grid{display:grid;grid-template-columns:1fr;gap:20px}
.svc-card{
  position:relative;padding:34px 30px;background:var(--ink-3);
  border:1px solid var(--line);overflow:hidden;
  transform-style:preserve-3d;transition:transform .2s var(--ease),border-color .4s,box-shadow .4s;
  will-change:transform;
  box-shadow:0 1px 0 rgba(244,241,234,.04) inset, 0 18px 40px -24px rgba(0,0,0,.9), 0 6px 14px -8px rgba(0,0,0,.7);
}
.svc-card:hover{border-color:var(--copper);box-shadow:0 1px 0 var(--copper-glow) inset, 0 30px 60px -28px rgba(0,0,0,.95), 0 12px 30px -10px var(--copper-glow)}
.svc-card .num{font-family:var(--serif);font-size:.95rem;color:var(--copper);transform:translateZ(40px)}
.svc-card h3{font-size:1.7rem;margin:16px 0 12px;transform:translateZ(28px)}
.svc-card p{color:var(--off-dim);font-size:.92rem;transform:translateZ(18px)}
.svc-card .svc-link{margin-top:20px;display:inline-flex;align-items:center;gap:8px;font-size:.78rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--copper);transform:translateZ(34px)}
.svc-card .glow{position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,var(--copper-glow),transparent 70%);opacity:0;transition:opacity .4s;pointer-events:none;mix-blend-mode:screen}
.svc-card:hover .glow{opacity:.5}

/* ---------- process ---------- */
.process{background:var(--ink)}
.proc-grid{display:grid;grid-template-columns:1fr;gap:0;counter-reset:step}
.proc-step{padding:30px 0;border-top:1px solid var(--line);display:grid;gap:8px}
.proc-step:last-child{border-bottom:1px solid var(--line)}
.proc-step .pnum{font-family:var(--serif);font-size:2.4rem;color:var(--copper);line-height:1}
.proc-step h3{font-size:1.5rem}
.proc-step p{color:var(--off-dim);max-width:60ch}

/* ---------- portfolio strip ---------- */
.folio{background:var(--ink-2)}
.folio-grid{display:grid;grid-template-columns:1fr;gap:14px}
.folio-item{position:relative;overflow:hidden;aspect-ratio:4/3;border:1px solid var(--line)}
.folio-item img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease);filter:grayscale(.3) contrast(1.05)}
.folio-item:hover img{transform:scale(1.06);filter:grayscale(0)}
.folio-item .cap{position:absolute;left:0;bottom:0;right:0;padding:18px;background:linear-gradient(transparent,rgba(12,12,14,.92));transform:translateY(8px);opacity:0;transition:.4s var(--ease)}
.folio-item:hover .cap{transform:translateY(0);opacity:1}
.folio-item .cap b{font-family:var(--serif);font-size:1.3rem;display:block}
.folio-item .cap span{font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;color:var(--copper)}

/* ---------- CTA band ---------- */
.cta-band{background:var(--ink);text-align:center;border-top:1px solid var(--line)}
.cta-band h2{font-size:clamp(2rem,6vw,4rem);margin-bottom:24px}
.cta-band .copper{color:var(--copper);font-style:italic}

/* ---------- contact ---------- */
.contact{background:var(--ink-2)}
.contact-grid{display:grid;grid-template-columns:1fr;gap:48px}
.contact form{display:grid;gap:18px}
.field{display:grid;gap:7px}
.field label{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--off-dim)}
.field input,.field select,.field textarea{
  background:var(--ink);border:1px solid var(--line);color:var(--off);
  padding:14px 16px;font-family:var(--sans);font-size:.95rem;transition:border-color .3s;
}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--copper)}
.field textarea{resize:vertical;min-height:120px}
.contact-info .info-row{padding:18px 0;border-top:1px solid var(--line)}
.contact-info .info-row span{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--copper);display:block;margin-bottom:5px}
.contact-info .info-row b{font-family:var(--serif);font-size:1.3rem;font-weight:500}
.form-note{font-size:.82rem;color:var(--off-dim)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);border-top:1px solid var(--line);padding:56px 0 28px}
.foot-grid{display:grid;grid-template-columns:1fr;gap:32px;margin-bottom:40px}
.foot-col h4{font-size:.72rem;letter-spacing:.16em;text-transform:uppercase;color:var(--copper);margin-bottom:16px}
.foot-col a{display:block;color:var(--off-dim);padding:5px 0;font-size:.9rem;transition:color .25s}
.foot-col a:hover{color:var(--off)}
.foot-bottom{border-top:1px solid var(--line);padding-top:24px;display:flex;flex-direction:column;gap:12px;align-items:center;text-align:center;font-size:.8rem;color:var(--off-dim)}
.foot-bottom .credit{color:var(--off-dim)}
.foot-bottom .credit a{color:var(--copper)}

/* ---------- page hero (interior pages) ---------- */
.page-hero{padding:160px 0 70px;position:relative;overflow:hidden;background:var(--ink)}
.page-hero .ph-img{position:absolute;inset:0;z-index:0}
.page-hero .ph-img img{width:100%;height:100%;object-fit:cover;opacity:.32;filter:grayscale(.4)}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--ink) 30%,transparent),linear-gradient(0deg,var(--ink),transparent 60%)}
.page-hero .wrap{position:relative;z-index:2}
.page-hero h1{font-size:clamp(2.5rem,7vw,5rem);margin:16px 0}
.breadcrumb{font-size:.78rem;color:var(--off-dim)}
.breadcrumb a:hover{color:var(--copper)}

/* reveal on scroll */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s var(--ease),transform .8s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media(min-width:760px){
  .svc-grid{grid-template-columns:repeat(2,1fr)}
  .folio-grid{grid-template-columns:repeat(3,1fr)}
  .contact-grid{grid-template-columns:1.2fr .8fr}
  .foot-grid{grid-template-columns:2fr 1fr 1fr}
}
@media(min-width:960px){
  .nav,.nav-cta{display:flex}
  .burger{display:none}
  .pad{padding:120px 0}
  .svc-grid{grid-template-columns:repeat(3,1fr)}
  .proc-grid{grid-template-columns:repeat(4,1fr)}
  .proc-step{border-top:none;border-left:1px solid var(--line);padding:0 26px}
  .hero-inner{max-width:60%}
}
@media(prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}