:root{
  color-scheme:light;
  --quartz:#FFFFFF;
  --paper:#F1F5F9;
  --basalt:#042051;
  --bluestone:#3E5679;
  --reef:#D59B15;
  --reef-ink:#755404;
  --wash:#8A5230;
  --gold-band:#D9A521;
  --rule:rgba(4,32,81,.16);

  --display:"Bricolage Grotesque",system-ui,sans-serif;
  --body:"Source Serif 4",Georgia,serif;
  --mono:"IBM Plex Mono",ui-monospace,monospace;

  --pad:clamp(1.25rem,3.5vw,3.5rem);
  --maxw:1480px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
.seam[id]{scroll-margin-top:5rem}
body{
  margin:0;
  background:var(--quartz);
  color:var(--basalt);
  font-family:var(--body);
  font-size:clamp(1rem,.96rem + .2vw,1.1rem);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%}
a{color:inherit}

.mono{
  font-family:var(--mono);
  font-size:.7rem;
  letter-spacing:.16em;
  text-transform:uppercase;
}
h1,h2,h3{font-family:var(--display);font-weight:800;line-height:1.02;letter-spacing:-.025em;margin:0}
h1{font-size:clamp(2.4rem,1.2rem + 5.2vw,4.75rem)}
h2{font-size:clamp(1.8rem,1.1rem + 2.6vw,3rem)}
h3{font-size:clamp(1.15rem,1rem + .7vw,1.5rem);font-weight:700;letter-spacing:-.015em}
p{margin:0 0 1.1em}
.lede{font-size:clamp(1.08rem,1rem + .55vw,1.35rem);line-height:1.55;max-width:34ch}

.wrap{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--pad)}

.skip{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:var(--basalt);color:var(--quartz);
  font-family:var(--mono);font-size:.72rem;letter-spacing:.12em;text-transform:uppercase;
  padding:.8rem 1.2rem;text-decoration:none;
}
.skip:focus{left:0}

/* ---------- masthead ---------- */
.masthead{
  position:sticky;top:0;z-index:60;
  background:color-mix(in srgb,var(--quartz) 88%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--rule);
}
.masthead-in{
  display:flex;align-items:center;justify-content:space-between;
  gap:.6rem 1rem;flex-wrap:wrap;padding-block:.7rem;
}
.brand{display:flex;align-items:center;text-decoration:none;padding-block:.15rem;min-width:0}
.markslot{
  width:34px;height:34px;flex:none;
  border:1.5px dashed var(--bluestone);
  border-radius:3px;
  display:grid;place-items:center;
  font-family:var(--mono);font-size:.42rem;letter-spacing:.05em;
  color:var(--bluestone);
  text-align:center;line-height:1.1;
}
.mark{display:block;width:clamp(138px,38vw,225px);height:auto;flex:none}
.foot .logo-full{display:block;width:min(230px,60vw);height:auto;margin-bottom:.9rem}

.wordmark{font-family:var(--display);font-weight:800;font-size:1.32rem;letter-spacing:-.035em}
.wordmark span{color:var(--reef)}

.nav{display:flex;gap:.2rem}
@media(max-width:520px){.nav a{padding:.5rem .45rem;font-size:.62rem;letter-spacing:.1em}}
.nav a{
  font-family:var(--mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;
  background:none;border:0;color:var(--bluestone);text-decoration:none;
  padding:.55rem .7rem;cursor:pointer;
  border-bottom:2px solid transparent;
}
.nav a:hover{color:var(--basalt)}
.nav a[aria-current="page"]{color:var(--basalt);border-bottom-color:var(--reef)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--reef);outline-offset:3px;
}

/* ---------- page entrance ---------- */
main{animation:fade .35s ease both}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ---------- hero ---------- */
.hero{padding-block:clamp(2.75rem,7vw,5.5rem) clamp(1.5rem,3vw,2.5rem)}
.hero .eyebrow{color:var(--bluestone);display:block;margin-bottom:1.5rem}
.hero-grid{display:grid;gap:clamp(1.5rem,4vw,3.5rem);grid-template-columns:1fr}
@media(min-width:880px){.hero-grid{grid-template-columns:1.3fr .7fr;align-items:end}}
.hero h1 em{font-style:normal;color:var(--reef)}
.hero-note{border-left:2px solid var(--reef);padding-left:1.1rem;max-width:44ch}
.hero-note p{margin-bottom:.6em}

/* ---------- strata (signature) ---------- */
.strata{margin-block:clamp(2rem,5vw,3.25rem);border:1px solid rgba(4,32,81,.35);background:#F7F9FB}
.strata-head{
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  padding:.7rem 1.1rem;color:var(--basalt);
  border-bottom:1px solid rgba(4,32,81,.25);
}
.strata-head span{color:var(--bluestone)}
.band{
  text-decoration:none;
  display:grid;grid-template-columns:auto 1fr;gap:1rem;align-items:baseline;
  padding:clamp(1.1rem,3.2vw,2rem) clamp(1rem,2.6vw,1.6rem);
  border-bottom:1px solid rgba(4,32,81,.14);
  border-left:6px solid transparent;
  text-align:left;width:100%;border-top:0;border-right:0;
  font-family:inherit;color:var(--basalt);cursor:pointer;
  transition:background .25s ease;
}
.band:last-child{border-bottom:0}
.band-1{background:#F3EDDC;border-left-color:#D9A521}
.band-2{background:#ECE8E7;border-left-color:#8A5230}
.band-3{background:#E3E7ED;border-left-color:#3E5679}
.band-1:hover,.band-1:focus-visible{background:#F0E7CB}
.band-2:hover,.band-2:focus-visible{background:#E3DBD6}
.band-3:hover,.band-3:focus-visible{background:#D4DAE2}
.band .depth{font-family:var(--mono);font-size:.66rem;letter-spacing:.12em;text-transform:uppercase;white-space:nowrap}
.band-1 .depth,.band-1 .more{color:#755404}
.band-2 .depth,.band-2 .more{color:#8A5230}
.band-3 .depth,.band-3 .more{color:#3E5679}
.band h2{margin-bottom:.3rem;font-size:clamp(1.15rem,1rem + .7vw,1.5rem);font-weight:700;letter-spacing:-.015em}
.band p{margin:0;font-size:.95rem;line-height:1.5;max-width:52ch}
.band .more{
  font-family:var(--mono);font-size:.64rem;letter-spacing:.12em;text-transform:uppercase;
  opacity:0;max-height:0;overflow:hidden;
  transition:opacity .3s ease,max-height .3s ease,margin .3s ease;
}
.band:hover .more,.band:focus-visible .more{opacity:1;max-height:2rem;margin-top:.7rem}
@media(max-width:620px){
  .band{grid-template-columns:1fr;gap:.45rem}
  .band .depth{order:-1}
}

/* animated reveal */
.band{animation:cut .7s cubic-bezier(.2,.75,.25,1) both}
.band-1{animation-delay:.1s}.band-2{animation-delay:.22s}.band-3{animation-delay:.34s}
@keyframes cut{from{clip-path:inset(0 0 100% 0);opacity:.2}to{clip-path:inset(0 0 0 0);opacity:1}}

/* ---------- generic sections ---------- */
.section{padding-block:clamp(2.5rem,6vw,4.5rem);border-top:1px solid var(--rule)}
.section-head{margin-bottom:clamp(1.5rem,3.5vw,2.5rem);max-width:56ch}
.section-head .mono{color:var(--bluestone);display:block;margin-bottom:.9rem}
.section-head h2{margin-bottom:.7rem}

.cols{display:grid;gap:clamp(1.25rem,3vw,2.25rem);grid-template-columns:1fr}
@media(min-width:720px){.cols-3{grid-template-columns:repeat(3,1fr)}.cols-2{grid-template-columns:1fr 1fr}}

.card{background:var(--paper);border:1px solid var(--rule);padding:clamp(1.2rem,2.6vw,1.75rem)}
.card h3{margin-bottom:.55rem}
.card p:last-child{margin-bottom:0}
.card .mono{color:var(--reef-ink);display:block;margin-bottom:.9rem}

/* ---------- services inside the strata frame ---------- */
.strata-services{margin-block:clamp(1.5rem,4vw,2.5rem)}
.strata-services .seam{
  border-top:0;border-bottom:1px solid rgba(4,32,81,.14);
  border-left:6px solid transparent;
  padding:clamp(1.5rem,4vw,2.5rem) clamp(1rem,2.6vw,1.6rem);
  margin:0;
}
.strata-services .seam:last-child{border-bottom:0}
.seam-1{background:#F3EDDC;border-left-color:#D9A521 !important}
.seam-2{background:#ECE8E7;border-left-color:#8A5230 !important}
.seam-3{background:#E3E7ED;border-left-color:#3E5679 !important}
.seam-1 .seam-rail .mono{color:#755404}
.seam-2 .seam-rail .mono{color:#8A5230}
.seam-3 .seam-rail .mono{color:#3E5679}
.strata-services .seam-rail .mono strong{color:var(--basalt)}
.strata-services .core{display:none}
.strata-services .seam li{border-top-color:rgba(4,32,81,.12)}

/* ---------- core sample rail (services page) ---------- */
.seam{display:grid;gap:clamp(1.25rem,3vw,2.5rem);grid-template-columns:1fr;padding-block:clamp(2rem,5vw,3.25rem);border-top:1px solid var(--rule)}
@media(min-width:820px){.seam{grid-template-columns:220px 1fr;gap:clamp(2rem,4vw,3.5rem)}}
.seam-rail{display:flex;gap:1rem;align-items:flex-start}
.core{width:16px;flex:none;min-height:70px;border:1px solid rgba(4,32,81,.3)}
@media(min-width:820px){.core{min-height:180px}}
.core-1{background:linear-gradient(#F3EDDC 0 0) padding-box;border-left:5px solid #D9A521}
.core-2{background:linear-gradient(#ECE8E7 0 0) padding-box;border-left:5px solid #8A5230}
.core-3{background:linear-gradient(#E3E7ED 0 0) padding-box;border-left:5px solid #3E5679}
.seam-rail .mono{color:var(--bluestone);line-height:1.9}
.seam-rail .mono strong{display:block;color:var(--basalt);font-weight:500}
.seam h2{margin-bottom:.8rem}
.seam ul{margin:1.2rem 0 0;padding:0;list-style:none;max-width:60ch}
.seam li{
  padding:.6rem 0 .6rem 1.5rem;border-top:1px solid var(--rule);
  position:relative;font-size:.98rem;
}
.seam li::before{
  content:"";position:absolute;left:0;top:1.15rem;
  width:7px;height:7px;background:var(--reef);
}

/* ---------- contact ---------- */
.contact-grid{display:grid;gap:clamp(1.5rem,4vw,3rem);grid-template-columns:1fr}
@media(min-width:820px){.contact-grid{grid-template-columns:.85fr 1fr;max-width:1180px}}
.detail{border-top:1px solid var(--rule);padding-block:.9rem}
/* section rule already sits above it */
.contact-grid .detail:first-child{border-top:0}
.detail .mono{color:var(--bluestone);display:block;margin-bottom:.2rem}
.detail a{text-decoration:none;border-bottom:1px solid var(--reef)}
.detail a:hover{background:rgba(213,155,21,.16)}

.field{margin-bottom:1.1rem}
.field label{font-family:var(--mono);font-size:.68rem;letter-spacing:.13em;text-transform:uppercase;color:var(--bluestone);display:block;margin-bottom:.45rem}
.field input,.field select,.field textarea{
  width:100%;padding:.7rem .8rem;font-family:var(--body);font-size:1rem;
  background:var(--paper);color:var(--basalt);
  border:1px solid var(--bluestone);border-radius:0;
}
.field textarea{min-height:130px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:2px solid var(--reef);outline-offset:1px;border-color:var(--reef)}

.btn{
  display:inline-block;font-family:var(--mono);font-size:.72rem;letter-spacing:.14em;text-transform:uppercase;
  background:var(--basalt);color:var(--quartz);border:1px solid var(--basalt);
  padding:.85rem 1.5rem;cursor:pointer;text-decoration:none;transition:background .2s ease,color .2s ease;
}
.btn:hover{background:var(--reef);border-color:var(--reef);color:var(--basalt)}
.btn-ghost{background:none;color:var(--basalt)}
.btn-ghost:hover{background:var(--basalt);color:var(--quartz);border-color:var(--basalt)}
#c-status{color:var(--bluestone);margin-top:1rem;min-height:1rem}
#c-status.is-error{color:var(--wash)}

.hp{position:absolute;left:-9999px;opacity:0;height:0;overflow:hidden}

.sent{
  border:1px solid var(--reef);border-left:4px solid var(--reef);
  background:var(--paper);padding:clamp(1.2rem,3vw,1.75rem);
}
.sent h2{margin-bottom:.5rem;font-size:clamp(1.15rem,1rem + .7vw,1.5rem);font-weight:700;letter-spacing:-.015em}
.sent p:last-child{margin-bottom:0}
.sent .mono{color:var(--reef-ink);display:block;margin-bottom:.8rem}
[hidden]{display:none !important}

.btn[disabled]{opacity:.55;cursor:progress}

.actions{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.6rem}

/* ---------- footer ---------- */
.foot{background:var(--basalt);color:var(--quartz);margin-top:clamp(3rem,7vw,5rem)}
.foot-in{padding-block:clamp(2rem,4vw,3rem);display:grid;gap:1.5rem}
@media(min-width:760px){.foot-in{grid-template-columns:1.4fr 1fr 1fr}}
.foot .wordmark{color:var(--quartz);display:block;margin-bottom:.6rem}
.foot p{color:rgba(222,227,233,.7);font-size:.92rem;max-width:38ch}
.foot .mono{color:rgba(222,227,233,.72);display:block;margin-bottom:.8rem}
.foot ul{list-style:none;margin:0;padding:0}
.foot li{margin-bottom:.5rem;font-size:.92rem}
.foot a{color:rgba(222,227,233,.85);text-decoration:none;border-bottom:1px solid transparent}
.foot a:hover{color:var(--reef);border-bottom-color:var(--reef)}
/* social */
.foot .social-head{margin-top:1.3rem}
.social{display:flex;gap:.5rem;flex-wrap:wrap;list-style:none;margin:0;padding:0}
.social li{margin:0}
.social-link{
  display:inline-flex;align-items:center;justify-content:center;
  padding:.45rem;margin:-.45rem;border:0;background:none;  /* padding = tap target */
  color:rgba(255,255,255,.9);
  transition:color .15s ease;
}
.social-link span{
  position:absolute;width:1px;height:1px;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;
}
/* sized inline on the svg, not here — unstyled it fills the container */
.social-i{display:block}
.foot a.social-link{border-bottom:0}
/* white, not gold — brand guidelines */
.foot a.social-link:hover,.foot a.social-link:focus-visible{
  color:#FFFFFF;border-bottom:0;
}

.foot-base{
  border-top:1px solid rgba(222,227,233,.18);
  padding-block:1rem;display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  color:rgba(222,227,233,.72);
}

.tbc{
  display:inline-block;font-family:var(--mono);font-size:.6rem;letter-spacing:.1em;
  background:rgba(213,155,21,.16);color:#755404;
  padding:.15rem .4rem;margin-left:.35rem;border:1px solid rgba(213,155,21,.45);
}

@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-delay:0s !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}