/* ------------------------------------------------------------------
   TRCS AI Services — shared stylesheet
   Extracted from the single-page build on 2026-09-22, when the site was
   split into Home / Services / How We Work. One file so the three pages
   cannot drift apart.

   VERSIONED FILENAME ON PURPOSE. Pages assets are served max-age=14400,
   so an edit in place is invisible for four hours. When this changes
   visibly, save it as ai-v2.css and update the three <link> tags rather
   than expecting anyone to hard-refresh. See ../CLAUDE.md.

   AI arm theme: graphite + platinum. Deliberately achromatic so it reads
   as a precision instrument, while keeping the shared TRCS serif
   typography.
   ------------------------------------------------------------------ */
:root{
  --graphite:#1b1e22; --graphite-2:#20242a; --graphite-3:#15171a; --graphite-4:#262b32;
  --ivory:#ece9e3; --ink:#d7d9dc; --ink-soft:#9aa1a9; --ink-faint:#767d85;
  --plat:#c7ced6; --plat-mid:#8f98a1; --plat-deep:#5a6269;
  --rule:#2e333a; --rule-soft:#25292f;
  --maxw:1080px; --ease:cubic-bezier(.22,.61,.36,1);
  --hdr:74px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth; scroll-padding-top:92px;}
body{margin:0; color:var(--ink); background:var(--graphite);
  font-family:'EB Garamond',Georgia,serif; font-size:18px; line-height:1.62;
  -webkit-font-smoothing:antialiased;}
h1,h2,h3,h4{font-family:'Cormorant Garamond',Georgia,serif; font-weight:500; line-height:1.12; color:var(--ivory); margin:0 0 .4em;}
h1{font-size:clamp(2.3rem,5vw,3.6rem); font-weight:600; letter-spacing:.005em;}
h2{font-size:clamp(1.65rem,3.2vw,2.25rem);}
h3{font-size:1.42rem; color:var(--ivory); font-weight:500;}
p{margin:0 0 1.1em;}
a{color:var(--plat); text-decoration:none; transition:.2s;} a:hover{color:#fff;}
.wrap{max-width:var(--maxw); margin:0 auto; padding:0 30px;}
.eyebrow{font-family:'Cormorant SC',serif; text-transform:uppercase; letter-spacing:.34em;
  font-size:.76rem; color:var(--plat-mid); margin:0 0 1.2rem;}
.btn{display:inline-block; font-family:'Cormorant SC',serif; letter-spacing:.18em; text-transform:uppercase;
  font-size:.82rem; padding:14px 32px; border:1px solid var(--plat-deep); color:var(--plat);
  background:transparent; transition:.3s var(--ease); cursor:pointer;}
.btn:hover{background:rgba(199,206,214,.08); border-color:var(--plat); color:#fff;}
.btn-ghost{border-color:var(--rule); color:var(--ink-soft);}
.btn-ghost:hover{border-color:var(--plat-mid); color:var(--ivory);}
.btn-row{display:flex; gap:18px; flex-wrap:wrap;}
:focus-visible{outline:2px solid var(--plat-mid); outline-offset:3px;}

/* ---------------- header ---------------- */
header{position:sticky; top:0; z-index:50; background:rgba(21,23,26,.9);
  backdrop-filter:blur(8px); border-bottom:1px solid var(--rule-soft);}
.nav{display:flex; align-items:center; justify-content:space-between; gap:20px;
  padding:16px 30px; min-height:var(--hdr); max-width:var(--maxw); margin:0 auto;}
.brand{display:flex; align-items:center; gap:14px;}
.brand img{width:95px; height:auto; display:block; filter:brightness(1.06);}  /* by width: the lockup is cropped to its ink, 3.74:1 */
.brand .co{font-family:'Cormorant SC',serif; letter-spacing:.18em; text-transform:uppercase;
  font-size:.86rem; color:var(--ink-soft); border-left:1px solid var(--rule); padding-left:15px; white-space:nowrap;}
nav ul{display:flex; gap:28px; list-style:none; margin:0; padding:0; font-size:1rem; align-items:center;}
nav a{color:var(--ink-soft);} nav a:hover{color:var(--plat);}
nav a[aria-current="page"]{color:var(--ivory); position:relative;}
nav a[aria-current="page"]::after{content:""; position:absolute; left:0; right:0; bottom:-7px;
  height:1px; background:var(--plat-deep);}
.nav-cta{font-family:'Cormorant SC',serif; letter-spacing:.16em; text-transform:uppercase;
  font-size:.74rem; color:var(--plat); white-space:nowrap;}
.navtoggle{display:none; background:none; border:1px solid var(--rule); color:var(--ink-soft);
  font-family:'Cormorant SC',serif; letter-spacing:.14em; text-transform:uppercase;
  font-size:.7rem; padding:9px 14px; cursor:pointer;}
.navtoggle:hover{border-color:var(--plat-mid); color:var(--ivory);}

/* ---------------- the section ribbon ---------------- */
/* A second, thinner strip under the header. On Services it indexes the seven
   offerings and tracks scroll position; elsewhere it indexes page sections. */
.ribbon{position:sticky; top:var(--hdr); z-index:40; background:rgba(18,20,23,.94);
  backdrop-filter:blur(8px); border-bottom:1px solid var(--rule-soft);}
.ribbon-inner{max-width:var(--maxw); margin:0 auto; padding:0 30px;
  display:flex; align-items:center; gap:6px; overflow-x:auto; scrollbar-width:thin;
  -webkit-overflow-scrolling:touch;}
.ribbon-inner::-webkit-scrollbar{height:2px;}
.ribbon-inner::-webkit-scrollbar-thumb{background:var(--rule);}
.ribbon a{font-family:'Cormorant SC',serif; letter-spacing:.13em; text-transform:uppercase;
  font-size:.68rem; color:var(--ink-faint); padding:15px 14px; white-space:nowrap;
  border-bottom:2px solid transparent; flex:0 0 auto;}
.ribbon a:hover{color:var(--plat);}
.ribbon a.on{color:var(--ivory); border-bottom-color:var(--plat-deep);}
.ribbon .rlabel{font-family:'Cormorant SC',serif; letter-spacing:.2em; text-transform:uppercase;
  font-size:.62rem; color:var(--plat-deep); padding-right:16px; margin-right:6px;
  border-right:1px solid var(--rule-soft); flex:0 0 auto; align-self:stretch;
  display:flex; align-items:center;}

/* ---------------- hero ---------------- */
.hero{position:relative; padding:84px 0 68px; text-align:center; overflow:hidden;}
.hero::before{content:""; position:absolute; inset:0; z-index:0;
  background:radial-gradient(120% 80% at 50% -18%, rgba(199,206,214,.09), transparent 58%);}
.hero .wrap{position:relative; z-index:1;}
.hero h1{max-width:16ch; margin-left:auto; margin-right:auto;}
.hero h1 .em{color:var(--plat); font-style:italic; font-weight:400;}
.hero .lede{font-size:1.18rem; color:var(--ink-soft); max-width:660px; margin:1.3em auto 2em; font-style:italic;}
.hero .btn-row{justify-content:center;}
.hero .subnote{font-size:.88rem; color:var(--ink-faint); margin:1.8em 0 0; letter-spacing:.02em;}

/* page hero: shorter opener for the interior pages */
.phero{padding:62px 0 46px; border-bottom:1px solid var(--rule-soft);}
.phero h1{font-size:clamp(2.1rem,4.4vw,3.2rem); max-width:18ch;}
.phero .lede{font-size:1.16rem; color:var(--ink-soft); max-width:660px; margin:1em 0 0; font-style:italic;}

section{padding:60px 0;}
.section-head{max-width:700px; margin:0 auto 40px; text-align:center;}
.section-head p{color:var(--ink-soft); font-size:1.08rem;}
.band{background:var(--graphite-3); border-top:1px solid var(--rule-soft); border-bottom:1px solid var(--rule-soft);}

/* ---------------- the practices ---------------- */
.prax{display:grid; grid-template-columns:repeat(3,1fr); gap:34px 46px;}
.prax .n{font-family:'Cormorant SC',serif; letter-spacing:.24em; font-size:.64rem;
  text-transform:uppercase; color:var(--plat-mid); margin-bottom:10px;}
.prax .rule{width:30px; height:1px; background:var(--plat-deep); margin-bottom:18px;}
.prax h3{font-size:1.3rem; margin:0 0 .45em;}
.prax p{font-size:1rem; color:var(--ink-soft); margin:0;}

/* ---------------- proof row ---------------- */
.proof{display:grid; grid-template-columns:repeat(3,1fr); gap:44px;}
.proof .rule{width:30px; height:1px; background:var(--plat-deep); margin-bottom:20px;}
.proof h3{font-size:1.35rem; margin:0 0 .5em;}
.proof p{font-size:1rem; color:var(--ink-soft); margin:0;}
.proof-note{max-width:740px; margin:38px auto 0; text-align:center; font-style:italic;
  color:var(--ink-soft); font-size:1.04rem; border-top:1px solid var(--rule-soft); padding-top:30px;}

/* ---------------- services: compact index (home) ---------------- */
/* Titles and prices only. The detail lives on /services, so repeating a
   paragraph per card here cost ~760px and said nothing new. */
.svc-mini{display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--rule-soft);
  border:1px solid var(--rule-soft);}
.svc-mini a{background:var(--graphite); padding:20px 22px 18px; display:flex; flex-direction:column;
  transition:background .3s var(--ease); min-height:132px;}
.svc-mini a:hover{background:var(--graphite-2);}
.svc-mini .no{font-family:'Cormorant SC',serif; letter-spacing:.22em; font-size:.6rem;
  text-transform:uppercase; color:var(--plat-mid); margin-bottom:9px;}
.svc-mini h3{font-size:1.18rem; margin:0 0 .5em; color:var(--ivory);}
.svc-mini .price{font-family:'Cormorant SC',serif; letter-spacing:.12em; text-transform:uppercase;
  font-size:.64rem; color:var(--plat-mid); border-top:1px solid var(--rule); padding-top:11px;
  margin-top:auto;}

/* ---------------- services: accordion (services page) ---------------- */
/* Seven rows visible at once; one opens at a time. `name` makes that native,
   and browsers without it simply allow several open. */
.acc{border-top:1px solid var(--rule);}
.acc details{border-bottom:1px solid var(--rule); scroll-margin-top:132px;}
.acc summary{cursor:pointer; list-style:none; padding:22px 0; display:grid;
  grid-template-columns:1fr auto auto; align-items:baseline; gap:10px 26px;}
.acc summary::-webkit-details-marker{display:none;}
.acc summary:hover .t{color:#fff;}
.acc .no{grid-column:1 / -1; font-family:'Cormorant SC',serif; letter-spacing:.22em;
  font-size:.6rem; text-transform:uppercase; color:var(--plat-mid); margin-bottom:-4px;}
.acc .t{font-family:'Cormorant Garamond',serif; font-size:clamp(1.3rem,2.2vw,1.65rem);
  color:var(--ivory); line-height:1.15; transition:.2s;}
.acc .price{font-family:'Cormorant SC',serif; letter-spacing:.12em; text-transform:uppercase;
  font-size:.66rem; color:var(--plat-mid); white-space:nowrap;}
.acc .mk{font-size:1.05rem; color:var(--plat-mid); line-height:1; width:14px; text-align:right;}
.acc details[open] .mk{color:var(--plat);}
.acc .mk::after{content:"+";}
.acc details[open] .mk::after{content:"\2013";}
.acc .body{padding:0 0 26px; max-width:760px;}
.acc .body p{font-size:1.02rem; color:var(--ink-soft); margin:0 0 .9em;}
.acc .body ul{list-style:none; margin:1em 0 0; padding:0;}
.acc .body li{font-size:.97rem; color:var(--ink-soft); padding:6px 0 6px 22px; position:relative;
  border-top:1px solid var(--rule-soft);}
.acc .body li:first-child{border-top:none;}
.acc .body li::before{content:""; position:absolute; left:0; top:17px; width:10px; height:1px;
  background:var(--plat-deep);}

/* ---------------- method / stages ---------------- */
.steps{display:grid; grid-template-columns:repeat(4,1fr); gap:30px;}
.step .rn{font-family:'Cormorant SC',serif; letter-spacing:.26em; font-size:.7rem;
  color:var(--plat-mid); text-transform:uppercase; margin-bottom:12px;}
.step h3{font-size:1.3rem; margin:0 0 .45em;}
.step p{color:var(--ink-soft); font-size:.99rem; margin:0;}

/* ---------------- two-column notes ---------------- */
.bounds{display:grid; grid-template-columns:repeat(2,1fr); gap:26px 44px; max-width:900px; margin:0 auto;}
.bound{border-left:1px solid var(--rule); padding-left:22px;}
.bound h3{font-size:1.18rem; margin:0 0 .4em;}
.bound p{font-size:.99rem; color:var(--ink-soft); margin:0;}

/* ---------------- faq ---------------- */
.faq{max-width:800px; margin:0 auto;}
.faq details{border-bottom:1px solid var(--rule-soft); padding:20px 0;}
.faq summary{cursor:pointer; font-family:'Cormorant Garamond',serif; font-size:1.24rem;
  color:var(--ivory); list-style:none; display:flex; justify-content:space-between; gap:20px; align-items:baseline;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+"; color:var(--plat-mid); font-size:1.1rem;}
.faq details[open] summary::after{content:"\2013";}
.faq p{margin:.9em 0 0; color:var(--ink-soft); font-size:1rem;}

/* ---------------- closing call to action (interior pages) ---------------- */
.cta-band{text-align:center;}
.cta-band h2{max-width:20ch; margin-left:auto; margin-right:auto;}
.cta-band p{color:var(--ink-soft); max-width:600px; margin:0 auto 2em;}
.cta-band .btn-row{justify-content:center;}

/* ---------------- form ---------------- */
.request{text-align:center;}
.lead-form{max-width:660px; margin:26px auto 0; text-align:left;}
.lead-form .row{display:flex; gap:20px; flex-wrap:wrap;} .lead-form .row > div{flex:1; min-width:210px;}
.lead-form label{display:block; font-family:'Cormorant SC',serif; text-transform:uppercase;
  letter-spacing:.14em; font-size:.66rem; color:var(--ink-soft); margin:0 0 7px;}
.lead-form input,.lead-form select,.lead-form textarea{width:100%; font-family:'EB Garamond',serif;
  font-size:1rem; color:var(--ink); background:transparent; border:none; border-bottom:1px solid var(--rule);
  padding:8px 2px; margin-bottom:16px; transition:.25s; border-radius:0;}
.lead-form input:focus,.lead-form select:focus,.lead-form textarea:focus{outline:none; border-bottom-color:var(--plat-mid);}
.lead-form option{background:var(--graphite-4); color:var(--ink);}
.lead-form textarea{min-height:76px; resize:vertical;}
.lead-form .hp{position:absolute; left:-9999px; width:1px; height:1px; overflow:hidden;}
.lead-form button{margin-top:8px; font-family:'Cormorant SC',serif; letter-spacing:.18em;
  text-transform:uppercase; font-size:.82rem; padding:14px 36px; border:1px solid var(--plat-deep);
  background:transparent; color:var(--plat); cursor:pointer; transition:.3s;}
.lead-form button:hover{background:rgba(199,206,214,.08); border-color:var(--plat); color:#fff;}
.lead-form .form-note{font-size:.85rem; color:var(--ink-faint); margin:18px 0 0;}
#form-status{margin-top:14px; font-style:italic; color:var(--plat); min-height:1.2em;}

/* ---------------- footer ---------------- */
footer{background:var(--graphite); border-top:1px solid var(--rule-soft); padding:42px 0 24px;
  font-size:.93rem; color:var(--ink-soft);}
.foot-grid{display:flex; justify-content:space-between; gap:40px; flex-wrap:wrap; margin-bottom:20px;}
.foot-grid img{width:105px; height:auto;}
.foot-grid strong{font-family:'Cormorant SC',serif; letter-spacing:.2em; font-size:.74rem;
  color:var(--ink-soft); font-weight:500;}
.foot-grid a{color:var(--ink-soft);} .foot-grid a:hover{color:var(--plat);}
.foot-note{border-top:1px solid var(--rule-soft); padding-top:18px; font-size:.8rem; font-style:italic; opacity:.75;}

@media (max-width:980px){
  .prax,.proof{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .svc-mini{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:760px){
  .prax,.proof,.svc-mini,.steps,.bounds{grid-template-columns:1fr;}
  .acc summary{grid-template-columns:1fr auto; gap:6px 16px;}
  .acc .price{grid-column:1; font-size:.62rem;}
  .hero{padding:60px 0 48px;} section{padding:46px 0;}
  .phero{padding:46px 0 34px;}
  .brand .co{display:none;}
  .navtoggle{display:block;}
  .nav-cta{display:none;}
  /* the menu becomes a drawer under the bar rather than vanishing, so the
     interior pages are actually reachable on a phone */
  nav{position:absolute; left:0; right:0; top:100%; background:var(--graphite-3);
    border-bottom:1px solid var(--rule-soft); display:none;}
  nav[data-open="1"]{display:block;}
  nav ul{flex-direction:column; align-items:stretch; gap:0; padding:6px 0;}
  nav li{border-top:1px solid var(--rule-soft);} nav li:first-child{border-top:none;}
  nav a{display:block; padding:14px 30px;}
  nav a[aria-current="page"]::after{display:none;}
  header .nav{position:relative;}
  .ribbon-inner{padding:0 18px;}
  .ribbon .rlabel{display:none;}
}
@media (prefers-reduced-motion:reduce){ *{transition:none !important; animation:none !important;} html{scroll-behavior:auto;} }