/* =========================================================
   Platinum Construction — Shared Design System
   ========================================================= */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --cream:#f7f3ec;
  --ivory:#fbf8f2;
  --white:#ffffff;
  --charcoal:#1c1a17;
  --ink:#2b2621;
  --rust:#b8572a;
  --rust-dark:#9a4820;
  --taupe:#8a7a62;
  --sand:#e8e1d4;
  --sand-deep:#ddd3bf;
  --gold:#d6b995;
  --muted:#6b6356;
  --border:rgba(28,26,23,.08);
  --border-strong:rgba(28,26,23,.15);
  --shadow-sm:0 1px 2px rgba(28,26,23,.06);
  --shadow-md:0 10px 30px rgba(28,26,23,.08);
  --shadow-lg:0 25px 60px rgba(28,26,23,.18);
}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,sans-serif;background:var(--ivory);color:var(--charcoal);line-height:1.65;font-weight:400;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
.container{max-width:1240px;margin:0 auto;padding:0 28px}

h1,h2,h3,h4,h5{font-family:'Fraunces',Georgia,serif;font-weight:500;line-height:1.15;letter-spacing:-.01em;color:var(--charcoal)}
h1{font-size:clamp(2.4rem,5.5vw,4.4rem);font-weight:400}
h2{font-size:clamp(1.9rem,3.5vw,2.9rem);font-weight:500}
h3{font-size:clamp(1.25rem,2vw,1.55rem);font-weight:500}
p{color:var(--muted);font-size:1.02rem}
.eyebrow{font-family:'Inter',sans-serif;text-transform:uppercase;letter-spacing:.22em;font-size:.72rem;font-weight:600;color:var(--rust);display:inline-block;margin-bottom:18px}

/* BUTTONS */
.btn{display:inline-flex;align-items:center;gap:10px;padding:15px 32px;border-radius:2px;font-family:'Inter',sans-serif;font-weight:500;font-size:.92rem;letter-spacing:.04em;transition:all .3s ease;cursor:pointer;border:1px solid transparent;white-space:nowrap}
.btn-primary{background:var(--charcoal);color:var(--ivory)}
.btn-primary:hover{background:var(--rust);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.btn-ghost{background:transparent;color:var(--charcoal);border-color:var(--charcoal)}
.btn-ghost:hover{background:var(--charcoal);color:var(--ivory)}
.btn-light{background:var(--ivory);color:var(--charcoal)}
.btn-light:hover{background:var(--rust);color:var(--ivory);transform:translateY(-2px)}
.btn-on-dark{background:transparent;color:var(--ivory);border-color:rgba(251,248,242,.4)}
.btn-on-dark:hover{background:var(--ivory);color:var(--charcoal);border-color:var(--ivory)}
.btn i{font-size:.78rem;transition:transform .3s ease}
.btn:hover i{transform:translateX(4px)}

/* NAV */
.nav{position:fixed;top:0;left:0;right:0;z-index:100;padding:22px 0;transition:all .4s ease;background:transparent}
.nav.scrolled,.nav.solid{background:rgba(251,248,242,.96);backdrop-filter:blur(10px);padding:14px 0;box-shadow:0 1px 0 var(--border)}
.nav-inner{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:baseline;gap:10px;font-family:'Fraunces',serif;font-weight:500}
.brand-mark{font-size:1.55rem;color:var(--ivory);letter-spacing:-.02em;transition:color .3s ease}
.nav.scrolled .brand-mark,.nav.solid .brand-mark{color:var(--charcoal)}
.brand-sub{font-family:'Inter',sans-serif;font-weight:500;font-size:.68rem;letter-spacing:.3em;text-transform:uppercase;color:rgba(251,248,242,.7);transition:color .3s ease}
.nav.scrolled .brand-sub,.nav.solid .brand-sub{color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:38px;list-style:none}
.nav-links a{font-size:.89rem;font-weight:500;color:var(--ivory);letter-spacing:.02em;position:relative;padding:6px 0;transition:color .3s ease}
.nav.scrolled .nav-links a,.nav.solid .nav-links a{color:var(--charcoal)}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--rust);transform:scaleX(0);transform-origin:left;transition:transform .3s ease}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-cta{padding:10px 22px;border:1px solid rgba(251,248,242,.4);border-radius:2px;color:var(--ivory);font-size:.85rem;font-weight:500;transition:all .3s ease}
.nav-cta:hover{background:var(--rust);border-color:var(--rust);color:var(--ivory)}
.nav.scrolled .nav-cta,.nav.solid .nav-cta{border-color:var(--charcoal);color:var(--charcoal)}
.nav.scrolled .nav-cta:hover,.nav.solid .nav-cta:hover{background:var(--charcoal);color:var(--ivory)}
.nav-cta::after{display:none}

.hamburger{display:none;width:28px;height:20px;position:relative;cursor:pointer;background:none;border:none}
.hamburger span{position:absolute;left:0;right:0;height:2px;background:var(--ivory);transition:all .3s ease}
.nav.scrolled .hamburger span,.nav.solid .hamburger span{background:var(--charcoal)}
.hamburger span:nth-child(1){top:0}
.hamburger span:nth-child(2){top:9px}
.hamburger span:nth-child(3){top:18px}
.hamburger.open span:nth-child(1){top:9px;transform:rotate(45deg);background:var(--charcoal)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){top:9px;transform:rotate(-45deg);background:var(--charcoal)}

.mobile-menu{position:fixed;top:0;right:0;bottom:0;width:85%;max-width:380px;background:var(--ivory);padding:100px 36px 40px;transform:translateX(100%);transition:transform .4s cubic-bezier(.7,0,.3,1);z-index:99;overflow-y:auto;box-shadow:-20px 0 40px rgba(0,0,0,.12)}
.mobile-menu.active{transform:translateX(0)}
.mobile-menu ul{list-style:none;display:flex;flex-direction:column;gap:2px}
.mobile-menu li{border-bottom:1px solid var(--border)}
.mobile-menu a{display:block;padding:18px 0;font-size:1.2rem;font-family:'Fraunces',serif;color:var(--charcoal);transition:color .2s ease}
.mobile-menu a:hover{color:var(--rust)}
.mobile-menu .m-cta{margin-top:28px;padding:16px 28px;background:var(--charcoal);color:var(--ivory);text-align:center;border-radius:2px;font-family:'Inter',sans-serif;font-size:.95rem;display:block}

/* PAGE HERO (smaller hero used on inner pages) */
.page-hero{position:relative;min-height:62vh;display:flex;align-items:flex-end;color:var(--ivory);padding:160px 0 70px;overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(28,26,23,.55) 0%,rgba(28,26,23,.75) 100%) center/cover no-repeat}
.page-hero h1{color:var(--ivory);margin-bottom:18px;max-width:760px}
.page-hero .eyebrow{color:var(--gold)}
.page-hero .lede{color:rgba(251,248,242,.82);max-width:580px;font-size:1.08rem;line-height:1.7}
.breadcrumb{font-size:.75rem;text-transform:uppercase;letter-spacing:.22em;color:rgba(251,248,242,.55);margin-bottom:28px;display:flex;gap:12px;align-items:center}
.breadcrumb a{color:rgba(251,248,242,.55);transition:color .2s ease}
.breadcrumb a:hover{color:var(--gold)}
.breadcrumb .sep{opacity:.5}

/* SECTIONS */
section{position:relative}
.section{padding:120px 0}
.section-tight{padding:90px 0}
.section-dark{background:var(--charcoal);color:var(--ivory)}
.section-dark h1,.section-dark h2,.section-dark h3,.section-dark h4,.section-dark h5{color:var(--ivory)}
.section-dark p{color:rgba(251,248,242,.72)}
.section-cream{background:var(--cream)}

.section-head{max-width:760px;margin-bottom:70px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{margin-bottom:18px}
.section-head p{font-size:1.08rem}

/* CREDENTIALS STRIP */
.credentials{background:var(--charcoal);color:var(--ivory);padding:36px 0;border-top:1px solid rgba(214,185,149,.12)}
.credentials-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.credentials-label{font-size:.72rem;text-transform:uppercase;letter-spacing:.28em;color:var(--gold);font-weight:600}
.credentials-list{display:flex;gap:42px;flex-wrap:wrap;list-style:none;align-items:center}
.credentials-list li{font-size:.82rem;color:rgba(251,248,242,.7);display:flex;align-items:center;gap:10px}
.credentials-list i{color:var(--rust);font-size:.78rem}

/* FINAL CTA */
.final-cta{padding:140px 0;text-align:center;background:var(--cream);position:relative;overflow:hidden}
.final-cta::before{content:"";position:absolute;top:0;bottom:0;left:50%;transform:translateX(-50%);width:140%;background:radial-gradient(ellipse at center,rgba(184,87,42,.06) 0%,transparent 60%);z-index:0;pointer-events:none}
.final-cta-inner{position:relative;z-index:1}
.final-cta h2{font-size:clamp(2.2rem,4.5vw,3.6rem);max-width:820px;margin:0 auto 28px}
.final-cta p{font-size:1.08rem;max-width:580px;margin:0 auto 40px}
.final-cta-ctas{display:inline-flex;gap:16px;flex-wrap:wrap;justify-content:center}

/* FOOTER */
.footer{background:var(--ink);color:rgba(251,248,242,.8);padding:90px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:60px;margin-bottom:70px}
.footer-brand .brand-mark{color:var(--ivory);font-size:1.6rem;margin-bottom:10px;display:block}
.footer-brand .brand-tagline{font-size:.72rem;letter-spacing:.3em;text-transform:uppercase;color:rgba(251,248,242,.5);margin-top:4px}
.footer-brand p{font-size:.92rem;color:rgba(251,248,242,.6);margin-top:18px;max-width:320px;line-height:1.7}
.footer-col h5{font-family:'Inter',sans-serif;text-transform:uppercase;letter-spacing:.2em;font-size:.72rem;color:var(--gold);margin-bottom:22px;font-weight:600}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:.92rem;color:rgba(251,248,242,.7);transition:color .2s ease}
.footer-col a:hover{color:var(--rust)}
.footer-col .contact-line{font-size:.92rem;color:rgba(251,248,242,.7);display:flex;align-items:flex-start;gap:12px;line-height:1.6}
.footer-col .contact-line i{color:var(--rust);margin-top:4px;font-size:.82rem}
.footer-social{display:flex;gap:12px;margin-top:22px}
.footer-social a{width:38px;height:38px;border:1px solid rgba(251,248,242,.15);display:flex;align-items:center;justify-content:center;border-radius:50%;color:rgba(251,248,242,.7);transition:all .3s ease}
.footer-social a:hover{background:var(--rust);border-color:var(--rust);color:var(--ivory)}
.footer-bottom{border-top:1px solid rgba(251,248,242,.08);padding-top:28px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;font-size:.8rem;color:rgba(251,248,242,.45)}
.footer-bottom-creds{display:flex;gap:24px;flex-wrap:wrap;font-size:.76rem}

/* ANIMATIONS */
.fade-up{opacity:0;transform:translateY(28px);transition:opacity .8s ease,transform .8s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}

/* RESPONSIVE */
@media (max-width:1024px){
  .page-hero{min-height:50vh;padding:140px 0 60px}
}
@media (max-width:768px){
  .section{padding:80px 0}
  .section-tight{padding:60px 0}
  .final-cta{padding:90px 0}
  .nav-links,.nav-cta{display:none}
  .hamburger{display:block}
  .section-head{margin-bottom:50px}
  .credentials-inner{justify-content:center;text-align:center}
  .credentials-list{gap:20px;justify-content:center}
  .footer-grid{grid-template-columns:1fr;gap:44px;margin-bottom:50px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .page-hero{min-height:44vh;padding:120px 0 50px}
}
@media (max-width:480px){
  .container{padding:0 22px}
  .btn{padding:13px 26px;font-size:.88rem}
}