:root{
  --black:#0a0a0a;
  --ink:#111111;
  --graphite:#1c1c1c;
  --charcoal:#2a2a2a;
  --steel:#3a3a3a;
  --slate:#5a5a5a;
  --ash:#8a8a8a;
  --mist:#bcbcbc;
  --silver:#dcdcdc;
  --fog:#ededed;
  --paper:#f6f6f6;
  --white:#ffffff;
  --ease:cubic-bezier(.2,.7,.2,1);
  --dur:.6s;
  --max:1280px;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}

body{
  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;
  color:var(--ink);
  background:var(--white);
  line-height:1.65;
  font-size:17px;
  font-weight:400;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5,h6{
  font-family:'Poppins',sans-serif;
  font-weight:700;
  line-height:1.05;
  letter-spacing:-.02em;
  color:var(--black);
}

h1{font-size:clamp(2.8rem,7vw,5.5rem)}
h2{font-size:clamp(2rem,4.5vw,3.4rem)}
h3{font-size:clamp(1.4rem,2.6vw,2rem)}
h4{font-size:clamp(1.1rem,1.8vw,1.35rem)}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}

a{color:inherit;text-decoration:none;transition:color .3s var(--ease),opacity .3s var(--ease)}
a:hover{color:var(--black)}

img{display:block;max-width:100%;height:auto;border-radius:12px;object-fit:cover}

ul,ol{margin:0 0 1.2em 1.4em}
li{margin:0 0 .4em}

strong{font-weight:600}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px}

/* ============ HEADER / NAV ============ */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  padding:22px 0;
  background:transparent;
  transition:background .4s var(--ease),padding .4s var(--ease),box-shadow .4s var(--ease);
}
.site-header.is-solid,
.site-header.scrolled{
  background:var(--white);
  padding:14px 0;
  box-shadow:0 10px 30px rgba(0,0,0,.08);
}
.site-header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  font-family:'Poppins',sans-serif;
  font-weight:700;
  font-size:1.35rem;
  letter-spacing:.04em;
  text-transform:uppercase;
  color:var(--white);
  display:inline-flex;
  align-items:baseline;
  gap:8px;
  line-height:1;
}
.brand span{font-weight:400;opacity:.7;font-size:.7em;letter-spacing:.3em}
.site-header.is-solid .brand,
.site-header.scrolled .brand{color:var(--black)}

.nav{display:flex;align-items:center;gap:8px}
.nav a{
  font-family:'Inter',sans-serif;
  font-size:.92rem;
  font-weight:500;
  letter-spacing:.04em;
  padding:10px 16px;
  border-radius:8px;
  color:var(--white);
  position:relative;
  transition:color .3s var(--ease),background .3s var(--ease);
}
.site-header.is-solid .nav a,
.site-header.scrolled .nav a{color:var(--ink)}
.nav a:hover{background:rgba(255,255,255,.12)}
.site-header.is-solid .nav a:hover,
.site-header.scrolled .nav a:hover{background:var(--fog)}
.nav a.active,
.nav a[aria-current="page"]{
  color:var(--white);
  background:var(--black);
}
.site-header.is-solid .nav a.active,
.site-header.scrolled .nav a.active,
.site-header.is-solid .nav a[aria-current="page"],
.site-header.scrolled .nav a[aria-current="page"]{
  color:var(--white);
  background:var(--black);
}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:0;background:transparent;cursor:pointer;
  padding:10px;
  flex-direction:column;justify-content:space-between;
}
.nav-toggle span{
  display:block;height:2px;width:100%;background:var(--white);border-radius:2px;
  transition:transform .35s var(--ease),opacity .25s var(--ease),background .3s var(--ease);
}
.site-header.is-solid .nav-toggle span,
.site-header.scrolled .nav-toggle span{background:var(--black)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(10px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-10px) rotate(-45deg)}

/* ============ HERO ============ */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:flex-end;
  padding:140px 0 120px;
  color:var(--white);
  background:linear-gradient(rgba(10,10,10,.35),rgba(10,10,10,.75)),url('https://picsum.photos/seed/vanguard-hero/1920/1200') center/cover no-repeat var(--black);
  clip-path:polygon(0 0,100% 0,100% 88%,0 100%);
}
.hero__inner{max-width:760px}
.hero .eyebrow{
  display:inline-block;
  font-family:'Inter',sans-serif;
  font-size:.78rem;
  font-weight:600;
  letter-spacing:.32em;
  text-transform:uppercase;
  color:var(--white);
  opacity:.85;
  padding:8px 14px;
  border:1px solid rgba(255,255,255,.4);
  border-radius:8px;
  margin-bottom:24px;
}
.hero h1{color:var(--white);margin-bottom:24px;text-shadow:0 4px 30px rgba(0,0,0,.4)}
.hero p{font-size:1.18rem;color:var(--fog);max-width:560px;margin-bottom:36px}
.hero__cta{display:flex;gap:16px;flex-wrap:wrap}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  font-family:'Inter',sans-serif;
  font-weight:600;
  font-size:.98rem;
  letter-spacing:.02em;
  padding:14px 30px;
  border-radius:8px;
  border:1px solid transparent;
  cursor:pointer;
  background:linear-gradient(135deg,var(--charcoal),var(--black));
  color:var(--white);
  box-shadow:0 8px 22px rgba(0,0,0,.18);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),background .3s var(--ease),color .3s var(--ease);
  will-change:transform;
}
.btn:hover{transform:translateY(-3px) scale(1.02);box-shadow:0 14px 34px rgba(0,0,0,.28)}
.btn:active{transform:translateY(-1px) scale(.99)}
.btn--light{background:linear-gradient(135deg,var(--white),var(--mist));color:var(--black);border-color:var(--silver)}
.btn--light:hover{box-shadow:0 14px 34px rgba(0,0,0,.22)}
.btn--outline{background:transparent;color:var(--white);border:1px solid var(--white);box-shadow:none}
.btn--outline:hover{background:var(--white);color:var(--black)}
.btn--dark-outline{background:transparent;color:var(--black);border:1px solid var(--black);box-shadow:none}
.btn--dark-outline:hover{background:var(--black);color:var(--white)}

/* ============ SECTIONS ============ */
section{padding:100px 0}
.section--dark{background:var(--black);color:var(--fog)}
.section--dark h1,.section--dark h2,.section--dark h3,.section--dark h4{color:var(--white)}
.section--gray{background:var(--paper)}
.section--fog{background:var(--fog)}
.section--ink{background:var(--ink);color:var(--silver)}
.section--ink h1,.section--ink h2,.section--ink h3,.section--ink h4{color:var(--white)}

.section-head{max-width:720px;margin-bottom:56px}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.eyebrow{
  display:inline-block;
  font-family:'Inter',sans-serif;
  font-size:.76rem;
  font-weight:600;
  letter-spacing:.3em;
  text-transform:uppercase;
  color:var(--steel);
  margin-bottom:18px;
  padding-bottom:10px;
  border-bottom:2px solid var(--black);
}
.section--dark .eyebrow,.section--ink .eyebrow{color:var(--mist);border-color:var(--white)}
.section-head p{font-size:1.1rem;color:var(--slate)}
.section--dark .section-head p,.section--ink .section-head p{color:var(--mist)}

/* generic two-column content */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.split--wide{gap:80px}
.split__media img{width:100%;height:480px;border-radius:16px;box-shadow:0 20px 50px rgba(0,0,0,.18)}
.split__text p{margin-bottom:1.2em}
.split__text .btn{margin-top:16px}

/* ============ CARDS / GRID ============ */
.grid{display:grid;gap:32px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--white);
  border-radius:16px;
  overflow:hidden;
  box-shadow:0 10px 30px rgba(0,0,0,.08);
  transition:transform .4s var(--ease),box-shadow .4s var(--ease);
  display:flex;flex-direction:column;
}
.section--dark .card,.section--ink .card{background:var(--graphite);color:var(--fog)}
.card:hover{transform:translateY(-8px);box-shadow:0 24px 50px rgba(0,0,0,.22)}
.card__media{aspect-ratio:16/10;overflow:hidden}
.card__media img{width:100%;height:100%;border-radius:0;transition:transform .6s var(--ease)}
.card:hover .card__media img{transform:scale(1.06)}
.card__body{padding:28px}
.card__body h3{margin-bottom:10px}
.card__body p{color:var(--slate);font-size:.98rem}
.section--dark .card__body p,.section--ink .card__body p{color:var(--mist)}
.card__tag{
  font-size:.72rem;letter-spacing:.22em;text-transform:uppercase;font-weight:600;
  color:var(--ash);margin-bottom:12px;
}

/* feature list */
.features{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feature{
  padding:32px;
  border-radius:14px;
  background:var(--fog);
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),background .35s var(--ease);
}
.section--dark .feature,.section--ink .feature{background:var(--charcoal)}
.feature:hover{transform:translateY(-6px);box-shadow:0 18px 40px rgba(0,0,0,.18)}
.feature__icon{
  width:52px;height:52px;border-radius:12px;
  background:var(--black);color:var(--white);
  display:flex;align-items:center;justify-content:center;
  font-family:'Poppins',sans-serif;font-weight:700;font-size:1.3rem;
  margin-bottom:20px;
}
.feature h3{margin-bottom:10px}
.feature p{color:var(--slate);font-size:.98rem;margin:0}
.section--dark .feature p,.section--ink .feature p{color:var(--mist)}

/* stats strip */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;text-align:center}
.stat__num{font-family:'Poppins',sans-serif;font-weight:700;font-size:clamp(2.4rem,4vw,3.4rem);color:var(--black);line-height:1}
.section--dark .stat__num,.section--ink .stat__num{color:var(--white)}
.stat__label{font-size:.82rem;letter-spacing:.18em;text-transform:uppercase;color:var(--ash);margin-top:10px}

/* ============ CONTACT / ADDRESS ============ */
.contact{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact__info address{
  font-style:normal;
  font-size:1.05rem;
  line-height:1.9;
  color:var(--ink);
  background:var(--fog);
  padding:32px;
  border-radius:14px;
  border-left:4px solid var(--black);
}
.section--dark .contact__info address,.section--ink .contact__info address{
  background:var(--graphite);color:var(--fog);border-left-color:var(--white);
}
.contact__info address strong{display:block;font-family:'Poppins',sans-serif;font-size:1.15rem;margin-bottom:6px;color:var(--black)}
.section--dark .contact__info address strong,.section--ink .contact__info address strong{color:var(--white)}
.contact__info address a{border-bottom:1px solid currentColor}
.contact__meta{list-style:none;margin:24px 0 0;padding:0}
.contact__meta li{display:flex;gap:14px;align-items:baseline;padding:12px 0;border-bottom:1px solid var(--fog)}
.contact__meta li strong{min-width:90px;font-family:'Poppins',sans-serif;font-size:.85rem;letter-spacing:.1em;text-transform:uppercase;color:var(--steel)}

/* form-ish */
.form{display:grid;gap:18px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:.82rem;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--steel)}
.field input,.field textarea,.field select{
  font-family:'Inter',sans-serif;font-size:1rem;
  padding:14px 16px;border:1px solid var(--mist);border-radius:8px;
  background:var(--white);color:var(--ink);
  transition:border-color