:root{
  --ink:#071b18;
  --muted:#66736e;
  --green:#0d6246;
  --bright:#43a047;
  --deep:#021f24;
  --blue:#092e3b;
  --stone:#f4f5f2;
  --line:#d8ded9;
  --card:#ffffff;
  --silver:#a8aca9;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Montserrat,Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;color:var(--ink);background:var(--stone);line-height:1.62}
a{color:inherit}
.container{width:min(1180px,calc(100% - 44px));margin:0 auto}
.header{position:sticky;top:0;z-index:30;background:rgba(244,245,242,.92);border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}
.nav{min-height:82px;display:flex;align-items:center;justify-content:space-between;gap:26px}
.brand{display:flex;align-items:center;gap:14px;text-decoration:none}
.mark{width:48px;height:48px;border-radius:14px;background:linear-gradient(145deg,#064048,#0d6246);position:relative;box-shadow:0 12px 32px rgba(2,31,36,.18);overflow:hidden}
.mark:before{content:"";position:absolute;left:8px;bottom:12px;width:34px;height:13px;border-bottom:6px solid white;border-radius:0 0 80px 80px;transform:rotate(-15deg)}
.mark:after{content:"";position:absolute;left:16px;bottom:16px;width:22px;height:22px;border-left:6px solid white;border-radius:0 0 0 12px;transform:skew(-12deg)}
.brand strong{display:block;font-family:Georgia,serif;font-size:24px;letter-spacing:.04em}
.brand span{display:block;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.menu{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
.menu a{text-decoration:none;font-size:13px;text-transform:uppercase;letter-spacing:.12em;color:#20352f}
.menu a:hover{color:var(--green)}
.menu .contact-link{border:1px solid var(--green);border-radius:999px;padding:10px 15px;color:var(--green);font-weight:700}
.hero{min-height:760px;padding:96px 0 80px;background:
linear-gradient(105deg,rgba(2,31,36,.96) 0%,rgba(9,46,59,.9) 44%,rgba(2,31,36,.35) 78%),
url('assets/london-skyline-sgf.jpg') center/cover;color:white}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:68px;align-items:end;min-height:560px}
.kicker{margin:0 0 18px;color:#b7d8c5;text-transform:uppercase;letter-spacing:.18em;font-weight:800;font-size:12px}
h1,h2,h3{line-height:1.1;margin-top:0}
h1{font-family:Georgia,serif;font-size:clamp(50px,7vw,92px);letter-spacing:-.055em;margin-bottom:28px}
h2{font-family:Georgia,serif;font-size:clamp(34px,4.4vw,58px);letter-spacing:-.04em;margin-bottom:22px}
h3{font-size:22px;letter-spacing:-.02em}
.lead{font-size:20px;max-width:780px;color:rgba(255,255,255,.78)}
.lead.dark{color:var(--muted)}
.actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:34px}
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;border-radius:999px;padding:14px 21px;font-weight:800;border:1px solid var(--bright);background:var(--bright);color:white}
.btn.secondary{background:transparent;color:white;border-color:rgba(255,255,255,.42)}
.hero-panel{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.18);backdrop-filter:blur(18px);border-radius:30px;padding:32px}
.hero-panel ul{margin:0;padding-left:20px;color:rgba(255,255,255,.78)}
.section{padding:96px 0}
.section.white{background:white}
.two{display:grid;grid-template-columns:.78fr 1.22fr;gap:72px}
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:34px}
.grid2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:34px}
.card,.insight,.quote-box{background:var(--card);border:1px solid var(--line);border-radius:30px;padding:32px;box-shadow:0 24px 70px rgba(7,27,24,.06)}
.card p,.insight p,.two p{color:var(--muted)}
.tag{display:inline-block;font-size:11px;text-transform:uppercase;letter-spacing:.15em;color:var(--green);font-weight:900;margin-bottom:14px}
.dark-band{background:linear-gradient(135deg,var(--deep),var(--blue));color:white}
.dark-band p{color:rgba(255,255,255,.74)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.stat{border:1px solid rgba(255,255,255,.16);border-radius:26px;padding:26px;background:rgba(255,255,255,.06)}
.stat strong{display:block;font-family:Georgia,serif;font-size:44px}
.page-hero{padding:84px 0 66px;background:linear-gradient(180deg,#fff,var(--stone));border-bottom:1px solid var(--line)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:18px}
.list{display:grid;gap:18px;margin-top:26px}
.list-item{padding-left:22px;border-left:4px solid #b7d8c5}
.research-card{min-height:250px;display:flex;flex-direction:column;justify-content:space-between}
.notice{background:#fff;border:1px solid var(--line);border-radius:26px;padding:26px;color:var(--muted)}
.footer{background:#031914;color:rgba(255,255,255,.75);padding:52px 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:44px}
.footer a{display:block;text-decoration:none;color:rgba(255,255,255,.78);margin:7px 0}
.small{font-size:13px;color:var(--muted)}
@media(max-width:920px){.nav{align-items:flex-start;flex-direction:column;padding:18px 0}.hero-grid,.two,.grid3,.grid2,.stats,.footer-grid{grid-template-columns:1fr}.hero{min-height:auto;padding:70px 0}.section{padding:64px 0}.menu{gap:14px}}


/* Correct brand logo from approved SGF visual identity */
.brand-logo-img{
  height:54px;
  width:auto;
  display:block;
}
.brand-logo-mobile{
  display:none;
}
@media(max-width:640px){
  .brand-logo-img{display:none;}
  .brand-logo-mobile{
    display:block;
    height:48px;
    width:auto;
  }
}


/* V2 additions: Research Platform + Client Portal */
.platform-hero{
  padding:84px 0;
  background:
    linear-gradient(105deg,rgba(2,31,36,.92),rgba(9,46,59,.76)),
    url('assets/london-skyline-sgf.jpg') center/cover;
  color:white;
}
.platform-hero p{color:rgba(255,255,255,.78)}
.dashboard{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:26px;
  margin-top:34px;
}
.metric-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px;
}
.metric{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.18);
  border-radius:24px;
  padding:22px;
}
.metric strong{
  display:block;
  font-family:Georgia,serif;
  font-size:40px;
  line-height:1;
}
.metric span{
  display:block;
  margin-top:8px;
  color:rgba(255,255,255,.72);
}
.portal-panel{
  background:#fff;
  color:var(--ink);
  border-radius:30px;
  padding:30px;
  border:1px solid var(--line);
  box-shadow:0 24px 70px rgba(7,27,24,.12);
}
.portal-panel p{color:var(--muted)}
.lock-box{
  border:1px dashed rgba(13,98,70,.45);
  background:#f8fbf8;
  border-radius:22px;
  padding:22px;
  margin-top:18px;
}
.article-list{
  display:grid;
  gap:18px;
  margin-top:28px;
}
.article-row{
  display:grid;
  grid-template-columns:160px 1fr;
  gap:22px;
  align-items:center;
  background:#fff;
  border:1px solid var(--line);
  border-radius:26px;
  overflow:hidden;
}
.article-thumb{
  height:140px;
  background:linear-gradient(135deg,var(--deep),var(--green));
}
.article-thumb.sky{background:url('assets/london-skyline-sgf.jpg') center/cover}
.article-thumb.office{background:url('assets/sgf-office-visual.jpg') center/cover}
.article-thumb.cardimg{background:url('assets/sgf-brand-card.jpg') center/cover}
.article-content{padding:20px 22px 20px 0}
.badge{
  display:inline-block;
  background:#eef6f1;
  color:var(--green);
  border-radius:999px;
  padding:6px 10px;
  font-size:11px;
  text-transform:uppercase;
  letter-spacing:.12em;
  font-weight:900;
}
.roadmap{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:18px;
  margin-top:30px;
}
.roadmap-step{
  background:#fff;
  border:1px solid var(--line);
  border-radius:24px;
  padding:24px;
}
.roadmap-step span{
  color:var(--green);
  font-weight:900;
  font-size:13px;
  letter-spacing:.12em;
}
@media(max-width:920px){
  .dashboard,.article-row,.roadmap{grid-template-columns:1fr}
  .article-content{padding:22px}
  .article-thumb{height:210px}
  .metric-grid{grid-template-columns:1fr}
}


/* London studio release refinements */
.editorial-note{
  max-width:860px;
  color:var(--muted);
  font-size:18px;
}
.discreet-link{
  color:rgba(255,255,255,.62);
  text-decoration:none;
  font-size:13px;
}
.discreet-link:hover{color:white}
.client-access{
  min-height:520px;
  display:flex;
  align-items:center;
}
.access-card{
  max-width:620px;
  background:#fff;
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:32px;
  padding:42px;
  box-shadow:0 30px 90px rgba(7,27,24,.16);
}
.access-card p{color:var(--muted)}
.insight-meta{
  color:var(--green);
  text-transform:uppercase;
  letter-spacing:.13em;
  font-size:11px;
  font-weight:900;
}