/* BIRTH public design system — a multi-surface place, not one long page.
   One visual language; each surface has its own density and rhythm. Typography and space
   carry hierarchy before containers do. Colour communicates state, never decoration. */
:root{
  --void:#06070A; --ink0:#0A0C11; --ink1:#0E1118; --graphite:#12151D; --raise:#171C26;
  --line:rgba(255,255,255,.08); --line2:rgba(255,255,255,.15); --line3:rgba(255,255,255,.26);
  --white:#F6F8FC; --dim:#B4BDC9; --dim2:#828C99; --faint:#757E8B;
  /* cool technical light surface (premium tech, not warm cream) */
  --paper:#EEF3F8; --paper2:#E1E9F2; --paper-ink:#0B1220; --paper-dim:#4A5568; --paper-line:rgba(11,18,32,.12); --paper-accent:#1558BD;
  --cyan:#3CE9FF; --blue:#4272FF; --violet:#8B5CFF; --green:#43E0A0; --amber:#FFC14D; --red:#FF6B6B;
  --grad:linear-gradient(103deg,var(--cyan),var(--blue) 52%,var(--violet));
  --maxw:1180px; --measure:62ch; --pad:clamp(1.25rem,5vw,3rem);
  --sans:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  --serif:'Newsreader','Georgia',ui-serif,serif;
  --mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,Consolas,monospace;
  --ease:cubic-bezier(.2,.7,.2,1); --nav-h:68px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--void);color:var(--white);font-family:var(--sans);
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;overflow-x:hidden;
  font-optical-sizing:auto;font-feature-settings:"liga" 1,"calt" 1,"cv05" 1,"cv11" 1}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
::selection{background:rgba(60,233,255,.24)}
.skip{position:absolute;left:-9999px}.skip:focus{left:16px;top:12px;z-index:100;background:var(--white);color:var(--void);padding:10px 16px;border-radius:8px}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:4px}

/* ── shared editorial primitives ── */
.wrap{max-width:var(--maxw);margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.kick{font:600 12px/1 var(--mono);letter-spacing:.18em;text-transform:uppercase;color:var(--cyan);margin:0}
.kick.dim{color:var(--dim2)}
.display{font-weight:800;letter-spacing:-.045em;line-height:.98;margin:0;font-size:clamp(2.6rem,7vw,5.4rem);text-wrap:balance}
.h2{font-weight:760;letter-spacing:-.035em;line-height:1.02;margin:0;font-size:clamp(2rem,4.6vw,3.6rem);text-wrap:balance}
.lede{color:var(--dim);font-size:clamp(1.1rem,1.6vw,1.35rem);line-height:1.55;max-width:var(--measure);margin:0;text-wrap:pretty}
.grad{color:#6F8CFF}
.mono{font-family:var(--mono)}
.section{padding:clamp(4.5rem,11vw,9rem) 0}
.section.tight{padding:clamp(3rem,7vw,5rem) 0}
.rule{height:1px;background:var(--line);border:0;margin:0}

/* ── mature navigation ── */
.nav{position:fixed;top:0;left:0;right:0;height:var(--nav-h);z-index:60;display:flex;align-items:center;
  justify-content:space-between;padding:0 var(--pad);transition:background .3s var(--ease),border-color .3s var(--ease);
  border-bottom:1px solid transparent}
.nav.scrolled{background:rgba(6,7,10,.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom-color:var(--line)}
.nav .brand{display:flex;align-items:center;gap:10px;font:800 16px/1 var(--sans);letter-spacing:.12em}
.nav .brand{min-height:44px}
.nav .brand img{width:26px;height:26px}
.nav-mid{display:flex;gap:4px}
.nav-mid a{padding:9px 14px;min-height:44px;display:inline-flex;align-items:center;border-radius:9px;color:var(--dim);font-size:14.5px;font-weight:500;transition:color .2s,background .2s}
.nav-mid a:hover,.nav-mid a[aria-current]{color:var(--white);background:rgba(255,255,255,.05)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:24px;background:var(--white);
  color:var(--void);font-weight:650;font-size:14px;border:1px solid var(--white);white-space:nowrap;
  box-shadow:0 2px 10px rgba(0,0,0,.2);transition:transform .16s var(--ease),box-shadow .2s var(--ease)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 6px 20px rgba(60,233,255,.22)}
.nav-burger{display:none;width:44px;height:44px;border:1px solid var(--line2);border-radius:10px;background:transparent;color:var(--white);align-items:center;justify-content:center}
.nav-burger span{display:block;width:16px;height:1.5px;background:currentColor;position:relative}
.nav-burger span::before,.nav-burger span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:currentColor}
.nav-burger span::before{top:-5px}.nav-burger span::after{top:5px}
.nav-burger span,.nav-burger span::before,.nav-burger span::after{transition:transform .2s var(--ease),top .2s var(--ease),background-color .2s}
.nav.open .nav-burger span{background:transparent}
.nav.open .nav-burger span::before{top:0;transform:rotate(45deg)}
.nav.open .nav-burger span::after{top:0;transform:rotate(-45deg)}
@media(max-width:860px){
  .nav-mid{display:none}
  .nav-burger{display:inline-flex}
  .nav-cta{padding:8px 14px;font-size:13px}
  .nav .brand{font-size:15px;letter-spacing:.05em;gap:8px}
  .nav.open .nav-mid{display:flex;position:fixed;inset:var(--nav-h) 0 auto 0;flex-direction:column;gap:0;
    background:var(--ink0);border-bottom:1px solid var(--line);padding:12px}
  .nav.open .nav-mid a{padding:15px 16px;font-size:17px}
}
@media(max-width:380px){
  /* very narrow: keep the primary CTA, drop it to an icon-tight pill so the brand never collides */
  .nav-cta{padding:8px 12px}
  .nav .brand{font-size:14px}
}

/* ── buttons ── */
.btn{display:inline-flex;align-items:center;gap:9px;padding:14px 24px;border-radius:12px;font:650 15px/1 var(--sans);
  cursor:pointer;border:1px solid var(--line2);background:transparent;color:var(--white);
  transition:transform .16s var(--ease),border-color .2s,background .2s,box-shadow .2s var(--ease)}
.btn:hover{transform:translateY(-1px)}
.btn svg{width:17px;height:17px;transition:transform .2s var(--ease)}
.btn:hover svg{transform:translateX(2px)}
.btn:hover svg.birth-icon{transform:none}
.btn.solid{background:var(--white);color:var(--void);border-color:var(--white);box-shadow:0 1px 2px rgba(0,0,0,.25)}
.btn.solid:hover{box-shadow:0 8px 24px rgba(60,233,255,.18),0 2px 6px rgba(0,0,0,.3)}
.btn.ghost:hover{border-color:var(--line3);background:rgba(255,255,255,.03)}
.btn[disabled]{opacity:.5;cursor:default;transform:none;box-shadow:none}
.paper .btn.solid:hover,.lightband .btn.solid:hover{box-shadow:0 8px 24px rgba(23,107,255,.18),0 2px 6px rgba(11,18,32,.12)}

/* ── BIRTH icon language ─────────────────────────────────────────────────────
   One local SVG sprite, no icon font or third-party runtime. The source grid is
   64 units; small rendered sizes receive a stronger optical stroke. */
.birth-icon{--birth-icon-stroke:3.2;width:1.5rem;height:1.5rem;display:inline-block;flex:0 0 auto;
  vertical-align:-.18em;overflow:visible;fill:none;stroke:currentColor;stroke-width:var(--birth-icon-stroke);
  stroke-linecap:round;stroke-linejoin:round;shape-rendering:geometricPrecision}
.birth-icon--16{--birth-icon-stroke:5.2;width:1rem;height:1rem}
.birth-icon--20{--birth-icon-stroke:4.5;width:1.25rem;height:1.25rem}
.birth-icon--24{--birth-icon-stroke:3.8;width:1.5rem;height:1.5rem}
.birth-icon--32{--birth-icon-stroke:3.2;width:2rem;height:2rem}
.birth-icon--48{--birth-icon-stroke:2.6;width:3rem;height:3rem}
.birth-icon--64{--birth-icon-stroke:2.4;width:4rem;height:4rem}
.birth-icon-button{min-width:44px;min-height:44px;display:inline-grid;place-items:center}
.icon-label{display:inline-flex;align-items:center;gap:8px}
.icon-label .birth-icon{color:currentColor}
.icon-state{display:inline-flex;align-items:center;gap:7px}
.icon-state .birth-icon{vertical-align:0}
.icon-state.is-processing .birth-icon,.birth-icon.is-processing{animation:birth-icon-turn 1.6s linear infinite}
@keyframes birth-icon-turn{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.birth-icon,.birth-icon *{animation:none!important;transition:none!important}}

/* ── shared footer ── */
.foot{border-top:1px solid var(--line);padding:clamp(3rem,7vw,5rem) 0 3rem;color:var(--dim2)}
.foot-top{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:2.5rem;align-items:start}
.foot .brand{display:flex;align-items:center;gap:10px;font:800 17px/1 var(--sans);letter-spacing:.1em;color:var(--white)}
.foot p{max-width:38ch;margin:14px 0 0;font-size:14.5px;line-height:1.6}
.foot h3{font:600 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin:0 0 14px}
.foot ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:11px}
.foot ul a{color:var(--dim);font-size:14.5px}.foot ul a:hover{color:var(--white)}
.foot-bottom{display:flex;justify-content:space-between;align-items:center;gap:1rem;flex-wrap:wrap;
  margin-top:clamp(2.5rem,6vw,4rem);padding-top:2rem;border-top:1px solid var(--line);font-size:13px}
.foot-bottom a{color:var(--dim2)}.foot-bottom a:hover{color:var(--white)}
@media(max-width:760px){.foot-top{grid-template-columns:1fr 1fr;gap:2rem}.foot-brand{grid-column:1/-1}}

/* ── reveal (progressive, reduced-motion safe) ── */
.rv{opacity:0;transform:translateY(18px);transition:opacity .7s var(--ease),transform .7s var(--ease);
  animation:rv-safety 1ms linear 2.6s forwards}
.rv.in{opacity:1;transform:none;animation:none}
@keyframes rv-safety{to{opacity:1;transform:none}}
@media(prefers-reduced-motion:reduce){.rv{opacity:1;transform:none;transition:none;animation:none}}

/* ── light (paper) surface for editorial / trust moments ── */
.paper{background:var(--paper);color:var(--paper-ink)}
.paper .lede{color:var(--paper-dim)}.paper .kick{color:#1f6feb}.paper .rule{background:var(--paper-line)}
.paper .btn{border-color:var(--paper-line);color:var(--paper-ink)}
.paper .btn.solid{background:var(--paper-ink);color:var(--paper);border-color:var(--paper-ink)}

.hp{position:absolute!important;left:-9999px;width:1px;height:1px;opacity:0}

/* ── home ── */
.home-hero{position:relative;min-height:100svh;display:flex;align-items:center;padding-top:var(--nav-h);overflow:hidden}
.home-core{position:absolute;inset:0;width:100%;height:100%;z-index:0}
.home-hero-veil{position:absolute;inset:0;z-index:1;pointer-events:none;
  background:linear-gradient(95deg,var(--void) 22%,rgba(6,7,10,.8) 42%,transparent 68%),
    radial-gradient(120% 92% at 50% 42%,transparent 48%,rgba(6,7,10,.5) 86%,var(--void)),
    linear-gradient(180deg,transparent 60%,var(--void))}
.home-hero-inner{position:relative;z-index:2;width:100%}
.home-hero .kick{margin-bottom:1.6rem}
.home-hero .display{max-width:16ch}
.home-hero .lede{margin-top:1.8rem}
.objfield{margin-top:2.6rem;max-width:640px}
.objfield label{display:block;color:var(--cyan);font-size:12px;letter-spacing:.16em;text-transform:uppercase;margin-bottom:12px}
.objfield-row{display:flex;gap:10px;background:rgba(10,12,17,.6);border:1px solid var(--line2);border-radius:16px;padding:8px;
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);transition:border-color .2s var(--ease)}
.objfield-row:focus-within{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(60,233,255,.1)}
.objfield-row input{flex:1;min-width:0;background:transparent;border:0;outline:none;color:var(--white);font:400 16px/1.4 var(--sans);padding:0 14px}
.objfield-row .btn{white-space:nowrap;padding:13px 20px}
.objfield-rot{color:var(--dim2);font-size:14px;margin:14px 4px 0;transition:opacity .26s var(--ease);min-height:1.3em}
@media(max-width:620px){.objfield-row{flex-direction:column}.objfield-row .btn{justify-content:center}}

.statement{font-weight:720;letter-spacing:-.035em;line-height:1.1;font-size:clamp(1.9rem,4.6vw,3.4rem);max-width:24ch;margin:0;text-wrap:balance}
/* alive link: underline grows from the left on hover/focus */
.link{color:var(--cyan);font-weight:600;white-space:nowrap;position:relative;display:inline-block;padding-bottom:1px}
.link::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1.5px;background:currentColor;border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .32s var(--ease)}
.link:hover::after,.link:focus-visible::after{transform:scaleX(1)}
@media(prefers-reduced-motion:reduce){.link::after{transition:none}}
.link.dark{color:#8A5A2A}

.diff-cols{display:grid;grid-template-columns:1fr 1.3fr;gap:clamp(1.5rem,4vw,3rem);margin-top:2.2rem}
.diff-col h3{font:600 12px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--dim2);margin:0 0 20px}
.diff-col.active h3{color:var(--cyan)}
.chain{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:0}
.chain li{position:relative;padding:12px 0 12px 26px;font-size:17px;color:var(--white)}
.chain li::before{content:"";position:absolute;left:5px;top:19px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.chain li:not(:last-child)::after{content:"";position:absolute;left:7.5px;top:26px;bottom:-2px;width:1px;background:var(--line2)}
.chain.plain li{color:var(--dim2)}.chain.plain li::before{background:var(--faint)}
.diff-col.active .chain li:first-child::before{background:var(--cyan)}
.diff-col.active .chain li:last-child::before{background:var(--green)}
@media(max-width:640px){.diff-cols{grid-template-columns:1fr;gap:2rem}}

.obj-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.obj-row{display:flex;align-items:baseline;justify-content:space-between;gap:1.5rem;padding:clamp(1.3rem,3vw,2rem) 0;
  border-bottom:1px solid var(--line);transition:padding-left .25s var(--ease),color .2s}
.obj-row span{font-size:clamp(1.15rem,2.4vw,1.7rem);font-weight:500;color:var(--white);letter-spacing:-.01em}
.obj-row em{font-style:normal;font:600 13px/1 var(--mono);color:var(--dim2);white-space:nowrap;opacity:0;transform:translateX(-6px);transition:opacity .2s,transform .2s,color .2s}
.obj-row:hover{padding-left:16px}
.obj-row:hover span{color:var(--white)}
.obj-row:hover em{opacity:1;transform:none;color:var(--cyan)}
@media(max-width:560px){.obj-row em{opacity:1;transform:none}}

.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(1.8rem,4vw,3.4rem) clamp(2rem,5vw,4rem)}
.proof-item{border-top:1px solid var(--line2);padding-top:20px}
.proof-n{font:600 12px/1 var(--mono);color:var(--faint);letter-spacing:.1em}
.proof-item h3{font-size:1.35rem;font-weight:640;letter-spacing:-.02em;margin:14px 0 10px}
.proof-item p{color:var(--dim);font-size:15.5px;line-height:1.6;margin:0;max-width:34ch}
@media(max-width:820px){.proof-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.proof-grid{grid-template-columns:1fr}}

.founder .statement{font-weight:780}
.final{padding:clamp(6rem,14vw,11rem) 0;background:radial-gradient(120% 80% at 50% 120%,rgba(66,114,255,.12),transparent 60%)}
.final .display{font-size:clamp(2.8rem,8vw,6rem)}

/* ── /objective — the experience (its own environment) ── */
.obex-page{background:radial-gradient(120% 70% at 78% 0,rgba(66,114,255,.08),transparent 55%),var(--void)}
.nav-back{color:var(--dim2);font:600 13px/1 var(--mono);letter-spacing:.06em}.nav-back:hover{color:var(--white)}
.obex-main{padding:calc(var(--nav-h) + clamp(2.5rem,7vw,5rem)) 0 6rem;min-height:100svh}
.obex-enter{max-width:760px}
.obex-inputform{margin-top:2.4rem}
.obex-inputform textarea{width:100%;background:rgba(10,12,17,.65);border:1px solid var(--line2);border-radius:16px;
  color:var(--white);font:400 clamp(1.05rem,1.8vw,1.35rem)/1.5 var(--sans);padding:20px 22px;resize:vertical;outline:none;transition:border-color .2s var(--ease)}
.obex-inputform textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 4px rgba(60,233,255,.1)}
.obex-inputform .btn{margin-top:16px}
.obex-proc{display:flex;flex-direction:column;gap:16px;min-height:50svh;justify-content:center;max-width:640px}
.obex-step{font:500 clamp(1.05rem,1.7vw,1.35rem)/1.5 var(--sans);color:var(--faint);opacity:.4;display:flex;align-items:center;gap:14px;transition:opacity .45s var(--ease),color .45s var(--ease)}
.obex-step::before{content:"";width:8px;height:8px;border-radius:50%;background:currentColor;opacity:.6}
.obex-step.on{opacity:1;color:var(--white)}.obex-step.done{opacity:.65;color:var(--cyan)}
.obex-step a{color:var(--cyan)}
.obex-out{animation:fadeup .6s var(--ease) both}
@keyframes fadeup{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:none}}
.obex-out-head{max-width:34ch;margin-bottom:clamp(2.5rem,6vw,4rem)}
.obex-objective{margin:16px 0 0;border:0;padding:0;font:500 clamp(1.6rem,3.2vw,2.5rem)/1.18 var(--sans);letter-spacing:-.02em;color:var(--white)}
.obex-out-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:clamp(2rem,5vw,4rem) clamp(2.5rem,6vw,5rem)}
.obex-obs-l{font:600 12px/1 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--dim2);margin:0 0 18px}
.obex-chain{display:flex;flex-direction:column;gap:0}
.obex-chain .cn{font:500 16px/1.3 var(--sans);color:var(--white);padding:11px 16px;border:1px solid var(--line2);border-radius:10px;background:rgba(10,12,17,.5);align-self:flex-start}
.obex-chain .cn:first-child{border-color:rgba(60,233,255,.45);color:var(--cyan)}
.obex-chain .cn:last-child{border-color:rgba(67,224,160,.45);color:var(--green)}
.obex-chain .cf{width:1px;height:16px;background:var(--line2);margin:2px 0 2px 24px}
.obex-ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.obex-ul li{position:relative;padding-left:20px;color:var(--dim);font-size:16px;line-height:1.5}
.obex-ul li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
.obex-ul.dim li::before{background:var(--faint)}
.obex-auth{grid-column:1/-1;border-top:1px solid var(--line);padding-top:26px;max-width:64ch}
.obex-auth p{color:var(--dim);font-size:16px;line-height:1.6;margin:0}
.obex-cont,.obex-done{margin-top:clamp(3rem,7vw,5rem);border-top:1px solid var(--line2);padding-top:clamp(2rem,5vw,3rem)}
.obex-cont-l{margin-bottom:26px}
.obex-cont-h{font:500 clamp(1.3rem,2.6vw,1.9rem)/1.3 var(--sans);color:var(--white);margin:14px 0 0;max-width:30ch;letter-spacing:-.015em}
.obex-cfields{display:grid;grid-template-columns:1fr 1fr 1.4fr;gap:14px;margin-bottom:22px}
.obex-cfields label{display:flex;flex-direction:column;gap:8px;font:600 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--dim2)}
.obex-cfields input{padding:14px 16px;border:1px solid var(--line2);border-radius:11px;background:rgba(10,12,17,.5);color:var(--white);font:400 16px/1.3 var(--sans);outline:none;transition:border-color .2s var(--ease)}
.obex-cfields input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(60,233,255,.12)}
.obex-cactions{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.obex-cerr{color:#FF7A7A;font-size:14px;margin:14px 0 0}
@media(max-width:800px){.obex-out-grid{grid-template-columns:1fr;gap:2.2rem}.obex-cfields{grid-template-columns:1fr}}

/* ── shared page hero (interior surfaces) ── */
.page-hero{padding:calc(var(--nav-h) + clamp(3.5rem,10vw,7rem)) 0 clamp(1rem,3vw,2rem)}
.page-hero .display{font-size:clamp(2.6rem,7vw,5rem)}

/* ── operating model ── */
.op-loop{display:flex;flex-direction:column;border-left:1px solid var(--line2);margin-left:6px}
.op-step{display:flex;gap:clamp(1rem,3vw,2.4rem);padding:clamp(1.4rem,3.5vw,2.4rem) 0 clamp(1.4rem,3.5vw,2.4rem) clamp(1.4rem,4vw,3rem);position:relative}
.op-step::before{content:"";position:absolute;left:-5px;top:calc(clamp(1.4rem,3.5vw,2.4rem) + 10px);width:9px;height:9px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px var(--void)}
.op-step:first-child::before{background:var(--cyan)}.op-step:last-child::before{background:var(--green)}
.op-n{font:600 13px/1 var(--mono);color:var(--faint);letter-spacing:.08em;flex:none;width:2.4em;padding-top:6px}
.op-step h3{font-size:clamp(1.4rem,3vw,2.1rem);font-weight:640;letter-spacing:-.025em;margin:0 0 8px}
.op-step p{color:var(--dim);font-size:16px;line-height:1.6;margin:0;max-width:52ch}

/* ── capabilities ── */
.cap-layout{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:start}
.cap-regions{display:flex;flex-direction:column;gap:2px}
.cap-region{display:flex;align-items:center;gap:14px;padding:16px 18px;border:1px solid transparent;border-radius:12px;
  background:transparent;color:var(--dim);cursor:pointer;text-align:left;font:600 clamp(1.1rem,2vw,1.5rem)/1 var(--sans);letter-spacing:-.01em;transition:.2s var(--ease)}
.cap-region .cap-dot{width:8px;height:8px;border-radius:50%;background:var(--faint);flex:none;transition:.2s}
.cap-region:hover{color:var(--white)}
.cap-region.linked{color:var(--dim);border-color:var(--line)}
.cap-region.linked .cap-dot{background:var(--blue)}
.cap-region.active{color:var(--white);background:rgba(60,233,255,.06);border-color:rgba(60,233,255,.35)}
.cap-region.active .cap-dot{background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.cap-panel{position:sticky;top:calc(var(--nav-h) + 2rem);border:1px solid var(--line2);border-radius:16px;padding:clamp(1.6rem,4vw,2.6rem);min-height:220px;background:linear-gradient(160deg,var(--ink1),var(--ink0))}
.cap-detail h3{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:680;letter-spacing:-.025em;margin:0 0 14px}
.cap-detail p{color:var(--dim);font-size:17px;line-height:1.6;margin:0;max-width:40ch}
@media(max-width:820px){.cap-layout{grid-template-columns:1fr}.cap-panel{position:static}}

/* ── about ── */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,3.6rem) clamp(2.5rem,6vw,5rem)}
.about-block{border-top:1px solid var(--line2);padding-top:20px}
.about-block h3{font-size:1.4rem;font-weight:640;letter-spacing:-.02em;margin:0 0 12px}
.about-block p{color:var(--dim);font-size:16.5px;line-height:1.65;margin:0;max-width:44ch}
.about-founder{max-width:64ch}
@media(max-width:720px){.about-grid{grid-template-columns:1fr;gap:1.8rem}}

/* ── contact ── */
.contact-hero{min-height:auto}
.contact-cta{margin-top:2.6rem;max-width:640px}
.contact-primary{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding:clamp(1.4rem,3vw,2rem) clamp(1.6rem,3.5vw,2.4rem);
  border:1px solid var(--line2);border-radius:18px;background:linear-gradient(120deg,rgba(60,233,255,.06),rgba(139,92,255,.05));transition:.2s var(--ease)}
.contact-primary:hover{border-color:var(--cyan);transform:translateY(-2px)}
.contact-primary strong{display:block;font-size:clamp(1.15rem,2.2vw,1.5rem);font-weight:640;letter-spacing:-.015em}
.contact-primary em{display:block;font-style:normal;color:var(--dim2);font-size:15px;margin-top:6px}
.contact-arrow{font-size:1.6rem;color:var(--cyan);flex:none}
.contact-alt{display:grid;grid-template-columns:1fr 1fr;gap:clamp(2rem,5vw,4rem);border-top:1px solid var(--line);padding-top:clamp(2.5rem,6vw,4rem)}
.contact-way h3{font-size:1.35rem;font-weight:640;letter-spacing:-.02em;margin:0 0 10px}
.contact-way p{color:var(--dim);font-size:16px;line-height:1.6;margin:0 0 16px;max-width:36ch}
@media(max-width:640px){.contact-alt{grid-template-columns:1fr;gap:2rem}.contact-primary{flex-direction:column;align-items:flex-start;gap:1rem}}

.legal p{color:var(--dim);font-size:16.5px;line-height:1.7;margin:0 0 18px;max-width:64ch}
.legal h3{font-size:1.15rem;font-weight:640;color:var(--white);margin:32px 0 10px}
.legal a.link{color:var(--cyan)}
.legal-meta{color:var(--faint)!important;font:500 13px/1.5 var(--mono);margin-top:32px!important}

[hidden]{display:none!important}

/* ── services (commercial surface) ── */
.svc-list{display:flex;flex-direction:column;border-top:1px solid var(--line)}
.svc{display:grid;grid-template-columns:1fr 1.5fr;gap:clamp(1.5rem,4vw,4rem);padding:clamp(2.5rem,6vw,4.5rem) 0;border-bottom:1px solid var(--line)}
.svc-n{font:600 13px/1 var(--mono);color:var(--faint);letter-spacing:.1em}
.svc-name{font-weight:720;letter-spacing:-.035em;font-size:clamp(2rem,4.4vw,3.4rem);margin:14px 0 12px;line-height:1}
.svc-sub{color:var(--dim2);font-size:15px;line-height:1.5;margin:0;max-width:30ch}
.svc-desc{color:var(--dim);font-size:clamp(1.05rem,1.6vw,1.25rem);line-height:1.6;margin:0 0 28px;max-width:52ch}
.svc-deliver-l{font:600 11px/1 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--cyan);margin:0 0 16px}
.svc-deliver{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px 28px}
.svc-deliver li{position:relative;padding-left:20px;color:var(--white);font-size:15.5px;line-height:1.5}
.svc-deliver li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
@media(max-width:820px){.svc{grid-template-columns:1fr;gap:1.5rem}.svc-deliver{grid-template-columns:1fr}}
.eng{display:flex;flex-direction:column;border-left:1px solid var(--line2);margin-left:6px}
.eng-step{display:flex;gap:clamp(1rem,3vw,2rem);padding:clamp(1.1rem,2.6vw,1.8rem) 0 clamp(1.1rem,2.6vw,1.8rem) clamp(1.2rem,3.5vw,2.6rem);position:relative}
.eng-step::before{content:"";position:absolute;left:-5px;top:calc(clamp(1.1rem,2.6vw,1.8rem) + 8px);width:9px;height:9px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 4px var(--void)}
.eng-step:first-child::before{background:var(--cyan)}.eng-step:last-child::before{background:var(--green)}
.eng-n{font:600 13px/1 var(--mono);color:var(--faint);flex:none;width:2.2em;padding-top:5px}
.eng-step h3{font-size:clamp(1.2rem,2.4vw,1.6rem);font-weight:620;letter-spacing:-.02em;margin:0 0 6px}
.eng-step p{color:var(--dim);font-size:15.5px;line-height:1.55;margin:0;max-width:48ch}

/* ── home commercial band ── */
.commercial{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.commercial-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:2.4rem;border-left:1px solid var(--line)}
.commercial-cell{padding:clamp(1.4rem,3vw,2rem) clamp(1rem,2vw,1.6rem);border-right:1px solid var(--line);transition:background .2s}
.commercial-cell:hover{background:rgba(255,255,255,.02)}
.commercial-cell h3{font-size:clamp(1.1rem,2vw,1.5rem);font-weight:640;letter-spacing:-.02em;margin:0 0 10px}
.commercial-cell p{color:var(--dim2);font-size:13.5px;line-height:1.5;margin:0}
@media(max-width:900px){.commercial-grid{grid-template-columns:1fr 1fr}.commercial-cell{border-bottom:1px solid var(--line)}}
@media(max-width:520px){.commercial-grid{grid-template-columns:1fr}}

/* ── objective: commercial interpretation ── */
.obex-involve{grid-column:1/-1;border-top:1px solid var(--line);padding-top:26px;display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.obex-involve-l{font:600 11px/1 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--dim2);width:100%;margin:0 0 4px}
.obex-tag{padding:8px 14px;border:1px solid var(--line2);border-radius:20px;font-size:14px;color:var(--white);background:rgba(60,233,255,.05)}

/* ── /start · project intake ─────────────────────────────────────────────────── */
.start-wrap{display:grid;grid-template-columns:1fr 320px;gap:clamp(2rem,5vw,4.5rem);align-items:start}
.start-form{min-width:0}
.start-step{border:none;margin:0 0 2.6rem;padding:0}
.start-step legend{display:flex;align-items:center;gap:12px;font:600 15px/1 var(--sans);color:var(--white);letter-spacing:-.01em;margin-bottom:1.1rem;padding:0}
.start-step legend em{font:400 11px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--dim2);font-style:normal}
.start-n{font:600 12px/1 var(--mono);letter-spacing:.1em;color:var(--cyan);border:1px solid var(--line2);border-radius:7px;padding:6px 8px}
.start-field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.start-l{font:600 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--dim2);display:flex;gap:8px;align-items:baseline}
.start-l em{font-style:normal;letter-spacing:.04em;color:var(--dim2);text-transform:none;font-weight:400}
.start-field textarea,.start-field input{padding:14px 16px;border:1px solid var(--line2);border-radius:11px;background:rgba(10,12,17,.5);color:var(--white);font:400 16px/1.4 var(--sans);outline:none;transition:border-color .2s var(--ease),box-shadow .2s var(--ease);resize:vertical;width:100%}
.start-field textarea:focus,.start-field input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(60,233,255,.12)}
.start-two{display:grid;grid-template-columns:200px 1fr;gap:14px}
.start-help{color:var(--dim2);font-size:14px;line-height:1.6;margin:0 0 1rem;max-width:60ch}
/* dropzone */
.drop{position:relative;border:1.5px dashed var(--line2);border-radius:14px;padding:26px 20px;text-align:center;cursor:pointer;transition:border-color .2s var(--ease),background .2s var(--ease)}
.drop:hover,.drop:focus-within{border-color:var(--cyan);outline:none}
.drop.over{border-color:var(--cyan);background:rgba(60,233,255,.06)}
.drop.uploading{opacity:.7;pointer-events:none}
.drop-input{position:absolute;inset:0;opacity:0;width:100%;height:100%;cursor:pointer}
.drop-inner svg{color:var(--cyan);margin-bottom:6px}
.drop-inner p{margin:2px 0;color:var(--white);font-size:15px}
.drop-browse{color:var(--cyan);text-decoration:underline}
.drop-sub{color:var(--dim2)!important;font-size:12.5px!important}
.upload-trust{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:10px;overflow:hidden;margin:0 0 12px}
.upload-trust span{background:var(--ink0);padding:11px 12px;color:var(--dim2);font-size:11.5px;line-height:1.4}
.upload-trust b{display:block;color:var(--white);font:650 10px/1.2 var(--mono);letter-spacing:.08em;text-transform:uppercase;margin-bottom:4px}
.filelist{list-style:none;margin:14px 0 0;padding:0;display:flex;flex-direction:column;gap:8px}
.fileitem{display:flex;align-items:center;gap:12px;padding:10px 14px;border:1px solid var(--line2);border-radius:10px;background:rgba(10,12,17,.4)}
.fileitem-main{flex:1;min-width:0;display:flex;flex-direction:column;gap:4px}
.fileitem-main strong{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;color:var(--white);font-weight:560}
.fileitem-main small{font:400 11px/1 var(--mono);color:var(--dim2)}
.fileitem-state{display:flex;flex-direction:column;gap:4px;min-width:135px}
.fileitem-state b{font:650 10px/1 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--green)}
.fileitem-state em{font-size:11px;line-height:1.2;color:var(--dim2);font-style:normal}
.fileitem.pending .fileitem-state b{color:var(--cyan)}
.fileitem.failed .fileitem-state b{color:#ffb4a0}
.fileitem-x{background:none;border:1px solid var(--line2);color:var(--dim2);cursor:pointer;font-size:12px;padding:8px 10px;min-height:44px;border-radius:7px;display:inline-flex;align-items:center;gap:6px;transition:color .15s,background .15s}
.fileitem-x:hover{color:var(--white);background:rgba(255,255,255,.06)}
.start-note{margin:12px 0 0;font-size:13.5px;color:var(--dim2)}
.start-note.failed{color:#ffb4a0}.start-note.received{color:#a6e3c7}.start-note.uploading{color:var(--cyan)}
.intake-boundary{margin:-.6rem 0 2.6rem;padding:18px 20px;border-left:3px solid var(--cyan);background:rgba(60,233,255,.045)}
.start-step .intake-boundary{margin:1rem 0 0}
.intake-boundary strong{display:block;color:var(--white);font-size:14px;margin-bottom:5px}
.intake-boundary p{margin:0;color:var(--dim);font-size:13.5px;line-height:1.55;max-width:64ch}
.start-actions{margin-top:1rem;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.start-reassure{color:var(--dim2);font-size:13px;margin:0}
/* aside */
.start-aside{position:sticky;top:calc(var(--nav-h) + 24px);border:1px solid var(--line);border-radius:16px;padding:26px 24px;background:rgba(10,12,17,.35)}
.start-aside h2{font-size:15px;color:var(--white);margin:0 0 1rem}
.start-next{list-style:none;margin:0 0 1.4rem;padding:0;display:flex;flex-direction:column;gap:14px}
.start-next li{display:flex;gap:12px;font-size:14px;line-height:1.5;color:var(--dim2)}
.start-next li strong{color:var(--white);font-weight:600}
.start-next li span{flex:none;width:22px;height:22px;border-radius:50%;border:1px solid var(--line2);display:grid;place-items:center;font:600 12px/1 var(--mono);color:var(--cyan)}
.start-aside-note{font-size:13px;color:var(--dim2);margin:.6rem 0 0}
/* success */
.start-done{max-width:60ch;scroll-margin-top:calc(var(--nav-h) + 24px)}
.start-done-actions{margin-top:2rem;display:flex;gap:14px;flex-wrap:wrap}
.receipt{display:grid;grid-template-columns:auto 1fr;gap:9px 18px;margin-top:1.4rem;padding:16px 18px;border:1px solid var(--line2);border-radius:12px;background:rgba(10,12,17,.45)}
.receipt span{font:600 10px/1.4 var(--mono);letter-spacing:.11em;text-transform:uppercase;color:var(--dim2)}
.receipt strong{font:550 13px/1.4 var(--mono);color:var(--white);overflow-wrap:anywhere}
@media(max-width:620px){.upload-trust{grid-template-columns:1fr}.fileitem{align-items:flex-start;flex-wrap:wrap}.fileitem-state{min-width:0;flex:1}.fileitem-x{min-height:44px}.receipt{grid-template-columns:1fr;gap:4px}.receipt strong{margin-bottom:8px}}
@media(max-width:900px){
  .start-wrap{grid-template-columns:1fr}
  .start-aside{position:static;order:-1;margin-bottom:1rem}
  .start-two{grid-template-columns:1fr}
}

/* ── home · service-first (BIRTH Systems company) ─────────────────────────────── */
.cando-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;margin-top:2.6rem;background:var(--line);border:1px solid var(--line)}
.cando-cell{background:var(--bg,#06070A);padding:clamp(1.5rem,3vw,2.1rem);display:flex;flex-direction:column;gap:10px;transition:background .2s}
.cando-cell:hover{background:rgba(60,233,255,.035)}
.cando-cell h3{font-size:clamp(1.05rem,1.9vw,1.35rem);font-weight:640;letter-spacing:-.02em;margin:0;color:var(--white)}
.cando-cell p{color:var(--dim2);font-size:14px;line-height:1.55;margin:0}
.cando-cell .cando-eg{margin-top:auto;font:600 11.5px/1.4 var(--mono);color:var(--dim2);opacity:.7;letter-spacing:.02em}
@media(max-width:820px){.cando-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.cando-grid{grid-template-columns:1fr}}
/* project flow */
.flow{display:grid;grid-template-columns:repeat(6,1fr);gap:1px;margin-top:2.4rem;background:var(--line);border:1px solid var(--line)}
.flow-four{grid-template-columns:repeat(4,1fr)}
.flow-step{background:var(--bg,#06070A);padding:clamp(1.2rem,2.4vw,1.7rem) clamp(1rem,2vw,1.3rem);display:flex;flex-direction:column;gap:10px}
.flow-step .flow-n{font:600 12px/1 var(--mono);color:var(--cyan);letter-spacing:.1em}
.flow-step h3{font-size:1rem;font-weight:620;margin:0;color:var(--white);letter-spacing:-.01em}
.flow-step p{color:var(--dim2);font-size:13px;line-height:1.5;margin:0}
@media(max-width:900px){.flow,.flow-four{grid-template-columns:1fr 1fr}}
@media(max-width:560px){.flow,.flow-four{grid-template-columns:1fr}}
/* the system behind the work (BIRTH, one section) */
.behind{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.behind-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:clamp(2rem,5vw,4rem);align-items:center}
.real-system-band{position:relative;overflow:hidden;min-height:760px;display:flex;align-items:flex-end;padding-top:clamp(24rem,38vw,33rem);isolation:isolate}
.system-photo{position:absolute;inset:0;z-index:-2}
.system-photo,.system-photo img{width:100%;height:100%;display:block}
.system-photo img{object-fit:cover;object-position:center 48%}
.real-system-band::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(6,7,10,.04) 12%,rgba(6,7,10,.15) 42%,rgba(6,7,10,.88) 73%,#06070a 100%),linear-gradient(90deg,rgba(6,7,10,.7),transparent 48%)}
.real-system-band .behind-grid{position:relative}
.combination-map{border:1px solid var(--line2);border-radius:14px;overflow:hidden;background:var(--ink0);margin:0}
.combination-map figcaption{padding:13px 16px;border-bottom:1px solid var(--line);font:600 10px/1 var(--mono);letter-spacing:.13em;text-transform:uppercase;color:var(--dim2)}
.combination-map>div{display:grid;grid-template-columns:1fr auto 1fr auto 1fr;gap:9px;align-items:center;padding:15px 16px;border-top:1px solid var(--line)}
.combination-map>div:first-of-type{border-top:0}
.combination-map span{font:600 12px/1.35 var(--mono);color:var(--white);text-align:center}
.combination-map i{font-style:normal;color:var(--cyan);font-size:12px}
.combination-map b{grid-column:1/-1;color:var(--dim2);font-size:13px;font-weight:500;text-align:center;padding-top:2px}
@media(max-width:820px){.behind-grid{grid-template-columns:1fr;gap:1.5rem}.real-system-band{min-height:0;padding-top:clamp(20rem,76vw,28rem)}.system-photo{height:clamp(24rem,86vw,34rem)}.system-photo img{object-position:center 48%}.real-system-band::before{background:linear-gradient(180deg,rgba(6,7,10,.02) 12%,rgba(6,7,10,.18) 45%,#06070a 78%)}}
@media(max-width:520px){.combination-map>div{display:flex;flex-wrap:wrap;justify-content:center}.combination-map b{flex-basis:100%}}

/* ── services: second list ("what helps us start") + example quotes ── */
.svc-desc em{color:var(--dim2);font-style:italic}
.svc-deliver + .svc-deliver-l{margin-top:26px}
.svc-deliver.dim li{color:var(--dim2)}
.svc-deliver.dim li::before{background:var(--faint)}

/* ── /book · Book a meeting ───────────────────────────────────────────────────── */
.book-wrap{display:grid;grid-template-columns:1fr 320px;gap:clamp(2rem,5vw,4rem);align-items:start}
.book-main{min-width:0}
.book-who{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin:0 0 1.6rem}
.book-who label{display:flex;flex-direction:column;gap:8px;font:600 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--dim2)}
.book-who label.full{grid-column:1/-1}
.book-who input,.book-who textarea{padding:13px 15px;border:1px solid var(--line2);border-radius:11px;background:rgba(10,12,17,.5);color:var(--white);font:400 15.5px/1.4 var(--sans);outline:none;transition:border-color .2s var(--ease)}
.book-who input:focus,.book-who textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(60,233,255,.12)}
@media(max-width:560px){.book-who{grid-template-columns:1fr}}
.booking-truth{display:grid;grid-template-columns:auto 1fr;gap:16px;border-left:3px solid var(--cyan);background:rgba(60,233,255,.045);padding:16px 18px;margin:0 0 1.6rem}
.booking-truth b{font:650 10px/1.4 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);white-space:nowrap}
.booking-truth span{color:var(--dim);font-size:13.5px;line-height:1.5}
@media(max-width:560px){.booking-truth{grid-template-columns:1fr;gap:6px}.booking-truth b{white-space:normal}}
/* timezone bar */
.tzbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 1.4rem;padding:12px 14px;border:1px solid var(--line);border-radius:11px;background:rgba(10,12,17,.35)}
.tzbar span{font:600 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--dim2)}
.tzbar select{flex:1;min-width:140px;min-height:44px;background:rgba(10,12,17,.6);color:var(--white);border:1px solid var(--line2);border-radius:8px;padding:8px 10px;font:400 14px/1 var(--sans);outline:none}
/* day + slot grid */
.days{display:flex;flex-direction:column;gap:14px;margin-top:.4rem}
.day{border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.day-h{font:600 13px/1 var(--sans);color:var(--white);margin:0 0 12px;letter-spacing:-.01em}
.slots{display:flex;flex-wrap:wrap;gap:8px}
.slot{min-height:44px;padding:9px 14px;border:1px solid var(--line2);border-radius:9px;background:rgba(10,12,17,.4);color:var(--white);font:500 14px/1 var(--sans);cursor:pointer;transition:border-color .15s,background .15s,color .15s}
.slot:hover{border-color:var(--cyan)}
.slot:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}
.slot[aria-pressed="true"]{background:var(--cyan);border-color:var(--cyan);color:var(--void);font-weight:650}
/* confirm bar */
.confirm-bar{position:sticky;bottom:0;margin-top:1.6rem;padding:16px;border:1px solid var(--line2);border-radius:12px;background:rgba(10,12,17,.9);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap}
.confirm-bar p{margin:0;font-size:14.5px;color:var(--white)}
.confirm-bar strong{color:var(--cyan)}
/* aside (who you're meeting) */
.book-aside{position:sticky;top:calc(var(--nav-h) + 24px);border:1px solid var(--line);border-radius:16px;padding:24px;background:rgba(10,12,17,.35)}
.book-aside h2{font-size:15px;color:var(--white);margin:0 0 4px}
.book-aside .role{font:600 11px/1.3 var(--mono);letter-spacing:.08em;text-transform:uppercase;color:var(--cyan);margin:0 0 1rem}
.book-aside ul{list-style:none;margin:1rem 0 0;padding:0;display:flex;flex-direction:column;gap:10px}
.book-aside li{position:relative;padding-left:22px;font-size:13.5px;line-height:1.5;color:var(--dim)}
.book-aside li::before{content:"";position:absolute;left:3px;top:8px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
@media(max-width:900px){.book-wrap{grid-template-columns:1fr}.book-aside{position:static;order:-1;margin-bottom:1rem}.confirm-bar{position:static}}
/* states */
.book-state{max-width:60ch}
.book-note{font-size:13.5px;color:var(--dim);margin:.8rem 0 0}
.book-note.warn{color:#ffb4a0}
.book-fallback{border:1px solid var(--line);border-radius:14px;padding:24px;background:rgba(10,12,17,.35);margin-top:1.4rem}
.meet-line{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid var(--line2);border-radius:9px;color:var(--cyan);font:500 14px/1 var(--mono);margin-top:6px}

/* ── legal notes ── */
.legal-note{color:var(--dim2);font-style:italic}
.legal ul{margin:.6rem 0;padding-left:1.2rem}.legal li{margin:.3rem 0}

/* ── service detail pages (the public knowledge base) ────────────────────────── */
.svcx-hero{padding:calc(var(--nav-h) + clamp(3rem,8vw,5.5rem)) 0 clamp(1rem,3vw,2rem)}
.svcx-hero .kick{margin-bottom:1.2rem}
.svcx-eyebrow{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin-bottom:1.2rem}
.svcx-eyebrow a{font:600 12px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--dim2)}
.svcx-eyebrow a:hover{color:var(--cyan)}
.svcx-eyebrow span{color:var(--faint)}
.svcx-layer{padding:clamp(2.4rem,5vw,3.6rem) 0;border-top:1px solid var(--line)}
.svcx-layer-k{font:600 11px/1 var(--mono);letter-spacing:.16em;text-transform:uppercase;color:var(--cyan);margin:0 0 18px}
.svcx-h3{font-weight:720;letter-spacing:-.03em;font-size:clamp(1.5rem,3vw,2.2rem);margin:0 0 18px;line-height:1.05}
.svcx-example{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;margin:1.6rem 0 0;border-left:2px solid var(--blue);padding:2px 0 2px 18px;max-width:72ch}
.svcx-example span{font:650 10px/1.3 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--cyan);white-space:nowrap;padding-top:5px}
.svcx-example p{margin:0;color:var(--white);font-size:clamp(1.02rem,1.6vw,1.18rem);line-height:1.5;font-weight:560}
@media(max-width:600px){.svcx-example{grid-template-columns:1fr;gap:7px}.svcx-example span{padding-top:0}}
.svcx-do{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:1fr 1fr;gap:12px 28px}
.svcx-do li{position:relative;padding-left:22px;color:var(--white);font-size:15.5px;line-height:1.5}
.svcx-do li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--blue)}
@media(max-width:700px){.svcx-do{grid-template-columns:1fr}}
/* signature flow diagram (purpose-built, restrained) */
.svcx-flow{display:flex;flex-wrap:wrap;align-items:stretch;gap:10px;margin:1.8rem 0 0}
.svcx-flow .fn{flex:1;min-width:120px;border:1px solid var(--line2);border-radius:12px;padding:16px 14px;background:linear-gradient(160deg,var(--ink1),var(--ink0));position:relative}
.svcx-flow .fn b{display:block;font:600 13.5px/1.2 var(--sans);color:var(--white);letter-spacing:-.01em;margin-bottom:6px}
.svcx-flow .fn span{font-size:12.5px;line-height:1.45;color:var(--dim2)}
.svcx-flow .fn::after{content:"→";position:absolute;right:-13px;top:50%;transform:translateY(-50%);color:var(--faint);font-size:14px;z-index:1}
.svcx-flow .fn:last-child::after{display:none}
@media(max-width:640px){.svcx-flow{flex-direction:column}.svcx-flow .fn::after{content:"↓";right:auto;left:50%;top:auto;bottom:-13px;transform:translateX(-50%)}}
/* technical profile */
.svcx-profile{display:grid;grid-template-columns:1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:1.6rem}
.svcx-dim{background:var(--ink0);padding:18px 20px}
.svcx-dim h3{font:600 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--dim2);margin:0 0 12px}
.svcx-chips{display:flex;flex-wrap:wrap;gap:7px}
.svcx-chip{font:500 12.5px/1 var(--sans);color:var(--dim);border:1px solid var(--line2);border-radius:7px;padding:6px 10px}
@media(max-width:640px){.svcx-profile{grid-template-columns:1fr}}
/* inputs / outputs */
.svcx-io{display:grid;grid-template-columns:1fr 1fr 1fr;gap:0;margin-top:1.4rem}
.svcx-io>div{padding:0 clamp(1.1rem,2.2vw,2rem)}
.svcx-io>div:first-child{padding-left:0}
.svcx-io>div:last-child{padding-right:0}
.svcx-io .svcx-work{border-inline:1px solid var(--line)}
.svcx-io h3{font:600 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--cyan);margin:0 0 14px}
.svcx-io ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px}
.svcx-io li{color:var(--dim);font-size:15px;line-height:1.5;padding-left:18px;position:relative}
.svcx-io li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:1px;background:var(--violet)}
@media(max-width:760px){.svcx-io{grid-template-columns:1fr;gap:0}.svcx-io>div{padding:1.35rem 0;border-top:1px solid var(--line)}.svcx-io>div:first-child{padding-top:0;border-top:0}.svcx-io .svcx-work{border-inline:0;border-top:1px solid var(--line)}}

/* ── original public interface studies ───────────────────────────────────────
   Purpose-built fictional system examples. The mobile source is a dedicated
   4:5 reflow, not a crop of the desktop workspace. */
.interface-evidence{position:relative;overflow:hidden;background:
  radial-gradient(90% 120% at 8% 10%,rgba(60,233,255,.055),transparent 58%),
  radial-gradient(70% 90% at 92% 86%,rgba(139,92,255,.05),transparent 62%),var(--void)}
.interface-evidence::before{content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
  background:linear-gradient(90deg,transparent 49.95%,rgba(255,255,255,.025) 50%,transparent 50.05%)}
.interface-evidence-head{position:relative;display:grid;grid-template-columns:minmax(0,1.2fr) minmax(250px,.8fr);gap:clamp(1.5rem,5vw,4rem);align-items:end;margin-bottom:clamp(2rem,4vw,3.25rem)}
.interface-evidence-head h2{margin:12px 0 0}.interface-evidence-head>p{margin:0;color:var(--dim);font-size:16px;line-height:1.65;max-width:50ch}
.interface-gallery{position:relative;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:clamp(1rem,2.2vw,1.6rem)}
.interface-study{min-width:0;margin:0;border:1px solid var(--line2);border-radius:16px;overflow:hidden;background:#070a0f;
  box-shadow:0 24px 80px rgba(0,0,0,.28);transition:border-color .25s var(--ease),transform .25s var(--ease)}
.interface-study:hover{border-color:var(--line3);transform:translateY(-2px)}
.interface-study picture{display:block;aspect-ratio:16/9;overflow:hidden;background:#070a0f;border-bottom:1px solid var(--line)}
.interface-study img{display:block;width:100%;height:100%;object-fit:cover}
.interface-study figcaption{display:grid;grid-template-columns:auto 1fr;gap:5px 14px;padding:18px 20px 20px;background:linear-gradient(180deg,rgba(16,22,32,.96),rgba(9,13,19,.98))}
.interface-study figcaption>span{grid-row:1/3;align-self:start;margin-top:2px;padding:6px 8px;border:1px solid rgba(60,233,255,.24);border-radius:999px;
  color:var(--cyan);font:650 9px/1 var(--mono);letter-spacing:.11em;text-transform:uppercase;white-space:nowrap}
.interface-study figcaption>b{color:var(--white);font-size:15px;line-height:1.3;letter-spacing:-.01em}
.interface-study figcaption>p{margin:0;color:var(--dim2);font-size:12.5px;line-height:1.5}
.interface-study-note{position:relative;margin:18px 0 0;color:var(--faint);font:500 11px/1.6 var(--mono)}
@media(max-width:760px){
  .interface-evidence-head{grid-template-columns:1fr;gap:1rem}.interface-gallery{grid-template-columns:1fr}
  .interface-study picture{aspect-ratio:4/5}.interface-study:hover{transform:none}
}
@media(max-width:430px){.interface-study{border-radius:13px}.interface-study figcaption{grid-template-columns:1fr;padding:15px 16px 17px}.interface-study figcaption>span{grid-row:auto;justify-self:start;margin:0 0 4px}}
.svcx-note{color:var(--dim2);font-size:14px;line-height:1.6;margin:1.2rem 0 0;max-width:60ch}
/* related + prev/next */
.svcx-related{display:flex;flex-wrap:wrap;gap:12px;margin-top:1.4rem}
.svcx-related a{border:1px solid var(--line2);border-radius:10px;padding:12px 16px;font-size:14.5px;color:var(--white);transition:border-color .2s,background .2s}
.svcx-related a:hover{border-color:var(--cyan);background:rgba(60,233,255,.04)}
.svcx-cta{display:flex;gap:14px;flex-wrap:wrap;margin-top:1.8rem}
/* services index — navigate by need */
.needs{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:14px;overflow:hidden;margin-top:2.4rem}
.need{background:var(--ink0);padding:clamp(1.4rem,3vw,2rem);display:flex;flex-direction:column;gap:8px;transition:background .2s}
.need:hover{background:rgba(60,233,255,.035)}
.need-icon{width:48px;height:48px;display:grid;place-items:center;margin-bottom:10px;color:var(--cyan);
  border:1px solid rgba(60,233,255,.2);border-radius:13px;background:linear-gradient(145deg,rgba(60,233,255,.06),rgba(66,114,255,.025));
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease)}
.need:hover .need-icon{color:#7d9cff;border-color:rgba(125,156,255,.4);transform:translateY(-2px)}
.need-icon .birth-icon{width:30px;height:30px}
.need b{font-size:clamp(1.05rem,1.8vw,1.3rem);font-weight:640;letter-spacing:-.02em;color:var(--white)}
.need span{color:var(--dim2);font-size:13.5px;line-height:1.5}
.need em{margin-top:auto;font:600 11.5px/1.3 var(--mono);color:var(--cyan);font-style:normal;letter-spacing:.03em}
@media(max-width:820px){.needs{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.needs{grid-template-columns:1fr}}

/* ── founder avatar (photo with graceful monogram fallback; drop dinis.jpg to activate) ── */
.avatar-photo{border-radius:50%;background-color:#0e1420;background-size:cover;
  background-position:center 22%;background-repeat:no-repeat;display:grid;place-items:center;
  color:rgba(255,255,255,.78);font:800 24px/1 var(--sans);letter-spacing:.04em;border:1px solid var(--line3);
  overflow:hidden;flex:none;box-shadow:inset 0 24px 60px rgba(37,99,255,.14),inset 0 -20px 40px rgba(139,92,255,.08)}
.avatar-photo.lg{width:clamp(180px,26vw,240px);aspect-ratio:4/5;border-radius:18px;background-position:center 18%;font-size:44px;
  box-shadow:inset 0 40px 100px rgba(37,99,255,.16),inset 0 -30px 60px rgba(139,92,255,.10)}
.avatar-photo,.founder-av{color:transparent}

/* ── large screens / 4K: fill the canvas, scale type up (content stays legible, not lost) ── */
@media(min-width:1700px){
  :root{--maxw:1560px; --pad:clamp(3rem,5vw,5.5rem)}
  body{font-size:18.5px}
  .display{font-size:clamp(4rem,4.4vw,6.2rem)}
  .h2{font-size:clamp(2.8rem,3.4vw,4.4rem)}
  .lede,.section-lede{font-size:1.42rem}
  .fhero h1{font-size:clamp(3.6rem,3.8vw,5.4rem)}
  .fhero .sub{font-size:1.4rem;max-width:52ch}
  .orbit{min-height:520px}
  .orbit-core{width:clamp(180px,12vw,240px);height:clamp(180px,12vw,240px)}
  .cap-card b{font-size:15px}.cap-card span{font-size:12.5px}
}
@media(min-width:2200px){
  :root{--maxw:1840px}
  body{font-size:20px}
  .display{font-size:clamp(4.6rem,4.2vw,6.8rem)}
  .fhero h1{font-size:clamp(4.2rem,3.7vw,6rem)}
}
@media(min-width:3000px){
  :root{--maxw:2200px; --pad:6rem}
  body{font-size:22px}
}

/* ── social row (official accounts; muted → cyan on hover; consistent 20px icon in 44px hit area) ── */
.social{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.social a{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:11px;color:var(--dim2);
  transition:color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease)}
.social a:hover{color:var(--cyan);background:rgba(60,233,255,.09);transform:translateY(-2px)}
.social a svg{width:20px;height:20px;display:block}
.social-lbl{font:600 11px/1 var(--mono);letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin:0 0 12px}
/* light-surface variant */
.lightband .social a,.paper .social a{color:var(--paper-dim)}
.lightband .social a:hover,.paper .social a:hover{color:#1f6feb;background:rgba(31,111,235,.07)}
.lightband .social-lbl,.paper .social-lbl{color:var(--paper-dim)}
/* dedicated homepage follow section */
.followband{border-top:1px solid var(--line)}
.follow-in{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.follow-in .social a{width:48px;height:48px;border:1px solid var(--line2)}
.follow-in .social a:hover{border-color:rgba(60,233,255,.4)}
.follow-in .social a svg{width:20px;height:20px}
.follow-in .social{gap:10px}
@media(max-width:640px){.follow-in{flex-direction:column;align-items:flex-start;gap:1.4rem}}

/* ── mobile header: trim brand to "BIRTH" so the CTA never collides ── */
@media(max-width:440px){
  .nav .brand .bsys{display:none}
  .nav-cta{font-size:12.5px;padding:8px 12px}
}

@media(max-width:760px){
  .foot ul a{display:flex;align-items:center;min-height:44px}
  .foot ul{gap:0}
  .foot-bottom a{display:inline-flex;align-items:center;min-height:44px}
  .svcx-eyebrow a{display:inline-flex;align-items:center;min-height:44px}
  .svcx-related a{min-height:44px;display:inline-flex;align-items:center}
}