/* S&A Digital Group — diagonal black/white system */

@import url('https://fonts.googleapis.com/css2?family=Archivo:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,500&display=swap');

:root{
  --ink:#0A0A0A;
  --paper:#FFFFFF;
  --gray-1:#F2F2F2;
  --gray-2:#C9C9C9;
  --gray-3:#8A8A8A;
  --max:1180px;
  --edge: clamp(24px, 6vw, 72px);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:'Archivo', sans-serif;
  font-size:16px;
  line-height:1.5;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:var(--max);margin:0 auto;padding:0 var(--edge);}
section{position:relative;}

h1,h2,h3{
  font-weight:900;
  letter-spacing:-0.02em;
  line-height:1.02;
  margin:0;
  text-transform:uppercase;
}
h1{font-size:clamp(40px,7vw,88px);}
h2{font-size:clamp(30px,4.5vw,52px);}
h3{font-size:clamp(18px,2.2vw,24px);}
p{margin:0;color:var(--gray-3);}
.eyebrow{
  font-size:12px;
  font-weight:700;
  letter-spacing:0.28em;
  text-transform:uppercase;
  color:var(--ink);
}
.eyebrow.on-dark{color:var(--paper);opacity:.8;}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:16px 30px;
  font-weight:700;
  font-size:13px;
  letter-spacing:0.08em;
  text-transform:uppercase;
  border:2px solid var(--ink);
  background:var(--ink);
  color:var(--paper);
  transition:transform .15s ease, background .15s ease, color .15s ease;
}
.btn:hover{background:var(--paper);color:var(--ink);transform:translateY(-2px);}
.btn.ghost{background:transparent;color:var(--ink);}
.btn.ghost:hover{background:var(--ink);color:var(--paper);}
.btn.on-dark{border-color:var(--paper);background:var(--paper);color:var(--ink);}
.btn.on-dark:hover{background:transparent;color:var(--paper);}

/* Header */
header.site{
  position:sticky;top:0;z-index:50;
  background:var(--paper);
  border-bottom:1px solid var(--gray-1);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px var(--edge);
  max-width:var(--max);margin:0 auto;
}
.logo{display:flex;align-items:center;gap:12px;}
.logo svg{width:40px;height:40px;flex:none;}
.logo .word{font-weight:900;font-size:15px;letter-spacing:-0.01em;text-transform:uppercase;line-height:1.1;}
.logo .word span{display:block;font-size:9px;font-weight:600;letter-spacing:0.3em;color:var(--gray-3);}
nav.links{display:flex;gap:36px;}
nav.links a{font-size:13px;font-weight:600;letter-spacing:0.03em;text-transform:uppercase;position:relative;}
nav.links a::after{
  content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--ink);
  transition:width .2s ease;
}
nav.links a:hover::after,nav.links a.active::after{width:100%;}
.nav-cta{display:flex;align-items:center;gap:20px;}
.burger{display:none;}

@media (max-width:860px){
  nav.links{display:none;}
  .nav-cta .btn{padding:12px 18px;font-size:11px;}
}

/* Diagonal hero */
.hero{
  position:relative;
  overflow:hidden;
  background:var(--ink);
  color:var(--paper);
  padding:96px var(--edge) 140px;
  clip-path: polygon(0 0, 100% 0, 100% 92%, 0 100%);
}
.hero-inner{max-width:var(--max);margin:0 auto;position:relative;z-index:2;}
.hero .diagonal-shape{
  position:absolute;right:-10%;top:-20%;
  width:60%;height:140%;
  background:var(--paper);
  clip-path: polygon(40% 0, 100% 0, 60% 100%, 0% 100%);
  opacity:.06;
}
.hero h1{margin-top:18px;max-width:820px;}
.hero p.lead{color:var(--gray-2);font-size:19px;max-width:560px;margin-top:26px;}
.hero .cta-row{display:flex;gap:18px;margin-top:40px;flex-wrap:wrap;}

/* Stat strip */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.15);
  margin-top:64px;padding-top:36px;
  gap:24px;
}
.stats .stat b{display:block;font-size:clamp(26px,3.4vw,40px);font-weight:900;}
.stats .stat span{font-size:12px;color:var(--gray-2);letter-spacing:.04em;}
@media (max-width:760px){.stats{grid-template-columns:repeat(2,1fr);}}

/* Section headers */
.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:24px;margin-bottom:48px;flex-wrap:wrap;
}
.section-head p{max-width:420px;}
.section{padding:110px var(--edge);}
.section.tight{padding:80px var(--edge);}
.section.ink{background:var(--ink);color:var(--paper);}
.section.ink p{color:var(--gray-2);}
.section.gray{background:var(--gray-1);}

/* Industry cards */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--gray-2);border:1px solid var(--gray-2);}
.grid-4 .card{background:var(--paper);padding:38px 28px;}
.card .num{font-size:12px;font-weight:700;color:var(--gray-3);letter-spacing:.1em;}
.card h3{margin-top:18px;}
.card p{margin-top:12px;font-size:14px;}
.card .proof{margin-top:20px;padding-top:16px;border-top:1px solid var(--gray-1);font-size:13px;font-weight:700;}
@media (max-width:900px){.grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:540px){.grid-4{grid-template-columns:1fr;}}

/* Services list */
.svc-stage{margin-bottom:64px;}
.svc-stage:last-child{margin-bottom:0;}
.svc-stage .stage-label{display:flex;align-items:center;gap:16px;margin-bottom:28px;}
.stage-label .dot{width:10px;height:10px;background:var(--ink);transform:rotate(45deg);flex:none;}
.svc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--gray-2);border:1px solid var(--gray-2);}
.svc-grid .item{background:var(--paper);padding:30px;}
.svc-grid .item h3{font-size:18px;}
.svc-grid .item p{margin-top:10px;font-size:14px;}
@media (max-width:860px){.svc-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:560px){.svc-grid{grid-template-columns:1fr;}}

/* Case studies */
.case{
  display:grid;grid-template-columns:1fr 1fr;gap:0;
  border:1px solid var(--gray-2);margin-bottom:1px;
}
.case .side{padding:48px;}
.case .side.dark{background:var(--ink);color:var(--paper);}
.case .side.dark p{color:var(--gray-2);}
.case .metric-row{display:flex;gap:40px;margin-top:28px;}
.case .metric b{display:block;font-size:34px;font-weight:900;}
.case .metric span{font-size:12px;color:var(--gray-3);}
.case .side.dark .metric span{color:var(--gray-2);}
@media (max-width:760px){.case{grid-template-columns:1fr;}}

/* Trust pillars */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);gap:40px;}
.pillar .mark{font-size:34px;font-weight:900;}
.pillar h3{margin-top:14px;font-size:17px;}
.pillar p{margin-top:10px;font-size:14px;}
@media (max-width:900px){.pillars{grid-template-columns:repeat(2,1fr);}}
@media (max-width:540px){.pillars{grid-template-columns:1fr;}}

/* Form */
.form-card{
  background:var(--ink);color:var(--paper);
  padding:56px;border-radius:0;
  position:relative;overflow:hidden;
}
.form-card::before{
  content:"";position:absolute;right:-20%;bottom:-40%;width:70%;height:140%;
  background:var(--paper);opacity:.05;
  clip-path:polygon(30% 0,100% 0,70% 100%,0 100%);
}
.form-row{position:relative;z-index:2;}
.field{margin-bottom:22px;}
.field label{display:block;font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-bottom:8px;color:var(--gray-2);}
.field input,.field select,.field textarea{
  width:100%;background:transparent;border:none;border-bottom:1px solid rgba(255,255,255,.3);
  color:var(--paper);font-family:inherit;font-size:16px;padding:10px 0;outline:none;
}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--paper);}
.field select option{color:#111;}

/* Footer */
footer.site{background:var(--ink);color:var(--paper);padding:72px var(--edge) 32px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.14);}
.foot-grid h4{font-size:12px;letter-spacing:.14em;text-transform:uppercase;margin:0 0 18px;color:var(--gray-2);}
.foot-grid a,.foot-grid p{font-size:14px;color:var(--gray-2);display:block;margin-bottom:10px;}
.foot-grid a:hover{color:var(--paper);}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;font-size:12px;color:var(--gray-3);flex-wrap:wrap;gap:12px;}
@media (max-width:860px){.foot-grid{grid-template-columns:1fr 1fr;}}

/* Confidentiality band */
.band{
  background:var(--gray-1);padding:40px var(--edge);
  display:flex;align-items:center;gap:24px;flex-wrap:wrap;justify-content:space-between;
  border-top:1px solid var(--gray-2);border-bottom:1px solid var(--gray-2);
}
.band p{max-width:560px;color:var(--ink);font-size:14px;}

/* Page intro (non-home pages) */
.page-hero{
  background:var(--ink);color:var(--paper);
  padding:100px var(--edge) 72px;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 0 92%);
}
.page-hero h1{margin-top:16px;font-size:clamp(34px,5.5vw,60px);}
.page-hero p{color:var(--gray-2);max-width:560px;margin-top:20px;}

/* Misc */
.divider-diag{
  height:90px;background:var(--ink);
  clip-path:polygon(0 0,100% 40%,100% 100%,0 100%);
  margin-top:-1px;
}
.chip{display:inline-block;padding:6px 14px;border:1px solid var(--ink);font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;margin-right:8px;margin-bottom:8px;}
.chip.on-dark{border-color:rgba(255,255,255,.4);color:var(--paper);}

/* Client reviews */
.review-feature{margin:0 0 1px;background:var(--ink);color:var(--paper);padding:56px;position:relative;overflow:hidden;}
.review-feature::before{content:"";position:absolute;right:-15%;top:-30%;width:55%;height:160%;background:var(--paper);opacity:.05;clip-path:polygon(40% 0,100% 0,60% 100%,0 100%);}
.review-feature blockquote{margin:0;position:relative;font-size:clamp(20px,2.4vw,30px);font-weight:700;line-height:1.3;letter-spacing:-0.01em;max-width:900px;}
.review-feature figcaption{position:relative;display:flex;flex-wrap:wrap;gap:6px 16px;margin-top:28px;font-size:14px;}
.review-feature figcaption span{color:var(--gray-2);}
.review-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:1px;background:var(--gray-2);border:1px solid var(--gray-2);}
.review-card{margin:0;background:var(--paper);padding:30px 26px;display:flex;flex-direction:column;gap:16px;}
.review-card q{font-size:20px;font-weight:900;line-height:1.2;text-transform:uppercase;letter-spacing:-0.01em;quotes:"“" "”";}
.review-card img{width:100%;height:auto;border:1px solid var(--gray-1);}
.review-card figcaption{display:flex;flex-direction:column;gap:2px;font-size:13px;color:var(--gray-3);margin-top:auto;}
.review-card figcaption b{color:var(--ink);}
.review-lang{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:var(--gray-3);}
.review-feature .review-lang{color:var(--gray-2);}
@media (max-width:760px){.review-feature{padding:36px 28px;}}