/* Mothership Graphics: PortalX page (3D modelling and visualisation for architecture).
   Sits on the site's own stylesheet; only what this page needs is here. */

/* Backdrop. A static blueprint gradient sits underneath; the code-drawn tower (portalx.js)
   fades in over it. Without WebGL the gradient and its grid simply stay. */
.px-bg{position:fixed;inset:0;z-index:-3;pointer-events:none;background:
    radial-gradient(55% 50% at 72% 40%,rgba(64,112,170,.24),transparent 70%),
    radial-gradient(45% 40% at 12% 88%,rgba(52,82,130,.16),transparent 70%),
    linear-gradient(180deg,#05060A 0%,#070B14 55%,#05060A 100%)}
.px-bg::after{content:"";position:absolute;inset:0;transition:opacity 1.2s ease;
  background-image:linear-gradient(rgba(120,170,230,.09) 1px,transparent 1px),linear-gradient(90deg,rgba(120,170,230,.09) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(65% 60% at 70% 45%,#000 25%,transparent 80%);mask-image:radial-gradient(65% 60% at 70% 45%,#000 25%,transparent 80%)}
.px-canvas{position:fixed;top:0;left:0;width:100%;height:100vh;height:100lvh;z-index:-2;display:block;pointer-events:none;opacity:0;transition:opacity 1.2s ease}
.px-gl .px-canvas{opacity:1}
.px-gl .px-bg::after{opacity:0}
/* Shade so copy reads over the tower: left side on desktop, lower half on phones */
.px-shade{position:fixed;inset:0;z-index:-1;pointer-events:none;
  background:linear-gradient(90deg,rgba(5,6,10,.74) 0%,rgba(5,6,10,.42) 40%,rgba(5,6,10,0) 68%)}
@media (max-width:820px),(max-aspect-ratio:1/1){.px-shade{background:linear-gradient(180deg,rgba(5,6,10,.15) 0%,rgba(5,6,10,.25) 38%,rgba(5,6,10,.8) 70%)}}

.px-page li{text-wrap:pretty}

/* Hero: copy low and left, the tower on the right (on phones it sits above the copy) */
.px-hero{position:relative;min-height:100svh;display:flex;align-items:flex-end;padding:clamp(110px,16vh,170px) 0 clamp(56px,9vh,96px)}
.px-hero::before{content:"";position:absolute;inset:0;z-index:0;pointer-events:none;background:radial-gradient(75% 60% at 18% 82%,rgba(5,6,10,.72),rgba(5,6,10,.3) 55%,transparent 80%)}
.px-hero-in{position:relative;z-index:1;max-width:min(780px,60vw);margin:0 0 0 max(var(--pad),calc((100vw - var(--maxw)) / 2 + var(--pad)))}
.px-logo{display:block;width:clamp(180px,21vw,300px);height:auto;margin:0;filter:drop-shadow(0 0 22px rgba(140,190,255,.28))}
.px-service{margin:12px 0 28px;font-family:var(--mono);font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--blue);text-shadow:0 2px 14px rgba(0,0,0,.9)}
.px-h1{font-size:clamp(38px,6.4vw,84px);letter-spacing:-.015em;line-height:1.02;text-shadow:0 4px 40px rgba(0,0,0,.65)}
.px-accent{display:block;color:#c9d0de;font-weight:500}
.px-lede{margin:22px 0 0;max-width:580px;font-size:clamp(16px,1.5vw,19.5px);color:#e1e5ef;text-shadow:0 2px 20px rgba(0,0,0,.85)}
.px-hero .hero-cta{justify-content:flex-start;margin-top:30px}
.px-note{margin:18px 0 0;font-family:var(--mono);font-size:12.5px;letter-spacing:.08em;color:#cdd3e0;text-shadow:0 2px 14px rgba(0,0,0,.9)}
.px-badge{position:absolute;right:var(--pad);bottom:clamp(20px,4vh,40px);z-index:1;max-width:300px;margin:0;padding:10px 14px;border:1px solid var(--line-2);border-radius:12px;
  background:rgba(5,6,10,.6);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);font-size:12.5px;line-height:1.45;color:#cfd5e2}
@keyframes pxrise{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:none}}
.px-hero-in > *{animation:pxrise .9s cubic-bezier(.2,.7,.2,1) both}
.px-hero-in > :nth-child(2){animation-delay:.06s}
.px-hero-in > :nth-child(3){animation-delay:.12s}
.px-hero-in > :nth-child(4){animation-delay:.18s}
.px-hero-in > :nth-child(n+5){animation-delay:.24s}
@media (max-width:820px){
  .px-hero{flex-direction:column;justify-content:flex-end;align-items:stretch;padding-top:clamp(240px,42svh,420px)}
  .px-hero-in{margin:0 var(--pad);max-width:none}
  .px-badge{position:static;margin:26px var(--pad) 0;max-width:none}
}

/* Sections and glass panels over the moving tower */
.px-section{position:relative;padding:clamp(70px,11vh,120px) 0}
.px-head{max-width:720px;margin-bottom:36px}
.px-head h2{font-size:clamp(28px,4.4vw,52px)}
.px-head .sub{color:#c3cad8;margin-top:16px;font-size:18px;text-shadow:0 2px 16px rgba(0,0,0,.7)}
.px-panel{background:rgba(8,10,18,.64);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid var(--line);border-radius:22px;padding:clamp(26px,4.4vw,50px);box-shadow:0 24px 70px rgba(0,0,0,.4)}

/* Cards with a blueprint corner mark */
.px-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.px-cards article{position:relative;background:rgba(8,10,18,.66);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:18px;padding:28px 26px;transition:border-color .3s,transform .3s}
.px-cards article::before{content:"";position:absolute;top:14px;right:14px;width:14px;height:14px;border-top:1px solid rgba(127,190,255,.55);border-right:1px solid rgba(127,190,255,.55)}
.px-cards article:hover{border-color:rgba(127,190,255,.4);transform:translateY(-4px)}
.px-cards .num{display:block;font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:#8fc4f5;margin-bottom:14px}
.px-cards h3{font-size:19px;margin:0 0 10px}
.px-cards p{margin:0;color:var(--muted);font-size:15.5px}
.px-cards--3 article{padding:30px 28px}

/* Process: a flow strip (a light runs Drawings to Tour) above four steps with line drawings */
.px-flow{position:relative;display:grid;grid-template-columns:repeat(4,1fr);margin:0 0 22px}
.px-flow::before{content:"";position:absolute;left:12.5%;right:12.5%;top:9px;height:1px;background:linear-gradient(90deg,rgba(127,190,255,.25),rgba(127,190,255,.6),rgba(127,190,255,.25))}
.px-flow span{position:relative;padding-top:30px;text-align:center;font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:#cdd6e6}
.px-flow span::before{content:"";position:absolute;top:3px;left:50%;width:13px;height:13px;margin-left:-6.5px;border-radius:50%;border:1px solid #7fbfff;background:#070a12;box-shadow:0 0 12px rgba(127,191,255,.35)}
.px-flow-run{position:absolute;left:12.5%;width:75%;top:5px;height:9px;overflow:hidden;pointer-events:none}
.px-flow-run b{position:absolute;inset:0;transform:translateX(-100%);animation:pxrun 5.5s cubic-bezier(.45,0,.55,1) infinite}
.px-flow-run b::before{content:"";position:absolute;left:0;right:4px;top:4px;height:1px;background:linear-gradient(90deg,transparent 55%,rgba(143,208,255,.75))}
.px-flow-run b::after{content:"";position:absolute;right:0;top:0;width:9px;height:9px;border-radius:50%;background:#9ad6ff;box-shadow:0 0 14px 2px rgba(143,208,255,.7)}
@keyframes pxrun{to{transform:translateX(0)}}

.px-steps{list-style:none;margin:0;padding:0;display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.px-steps li{background:rgba(8,10,18,.66);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:16px;padding:24px 22px}
.px-steps svg{display:block;width:76px;height:76px;margin:0 0 16px;color:#9fd0ff;overflow:visible}
.px-steps svg *{fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.px-steps svg .d{stroke-dasharray:1;stroke-dashoffset:1}
.px-steps svg .soft{stroke:#5f7fa6}
.px-steps svg .dash{stroke-dasharray:2 3;stroke:#5f7fa6}
.px-steps li.in svg .d{animation:pxdraw 1.5s cubic-bezier(.3,.6,.2,1) .15s forwards}
.px-steps li.in svg .d2{animation-delay:.55s}
.px-steps li.in svg .d3{animation-delay:.95s}
@keyframes pxdraw{to{stroke-dashoffset:0}}
.px-steps .n{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:#8fc4f5}
.px-steps h3{font-size:19px;margin:10px 0 8px}
.px-steps p{margin:0;color:var(--muted);font-size:15px}

/* Files: two groups of chips */
.px-files{display:grid;grid-template-columns:1fr 1fr;gap:clamp(22px,4vw,48px)}
.px-files h3{margin:0 0 14px;font-family:var(--mono);font-weight:600;font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--blue)}
.px-chips{display:flex;flex-wrap:wrap;gap:10px}
.px-chips span{padding:12px 20px;border:1px solid var(--line-2);border-radius:999px;background:rgba(8,10,18,.6);font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:var(--ink)}
.px-chips .on{border-color:rgba(127,190,255,.5);box-shadow:0 0 18px rgba(127,190,255,.15)}
.px-files-note{margin:26px 0 0;color:#c3cad8;font-size:16px}

/* What we do: list with glowing dots */
.px-list{list-style:none;margin:0;padding:0;display:grid;gap:16px}
.px-list li{display:grid;grid-template-columns:auto 1fr;gap:6px 16px;align-items:start}
.px-list .dot{width:10px;height:10px;margin-top:9px;border-radius:50%;background:#9ad6ff;box-shadow:0 0 14px rgba(143,208,255,.6)}
.px-list b{display:block;font-family:var(--display);font-weight:600;font-size:18px}
.px-list span{color:var(--muted);font-size:15.5px}

/* FAQ */
.px-faq{max-width:820px;display:grid;gap:12px}
.px-faq details{background:rgba(8,10,18,.66);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--line);border-radius:16px;padding:0 22px}
.px-faq summary{cursor:pointer;list-style:none;padding:20px 0;font-family:var(--display);font-weight:600;font-size:18px;display:flex;justify-content:space-between;gap:16px;align-items:center}
.px-faq summary::-webkit-details-marker{display:none}
.px-faq summary::after{content:"+";font-family:var(--mono);font-size:22px;color:var(--blue);transition:transform .25s}
.px-faq details[open] summary::after{transform:rotate(45deg)}
.px-faq details p{margin:0 0 20px;color:var(--muted);font-size:16px}

/* Close */
.px-cta{text-align:center;max-width:860px;margin:0 auto}
.px-cta h2{font-size:clamp(30px,5vw,58px)}
.px-cta p{color:#cfd5e2;font-size:18px;margin:16px auto 0;max-width:560px}
.px-cta .hero-cta{justify-content:center}
.px-cta .alt{margin-top:22px;font-family:var(--mono);font-size:13px;letter-spacing:.06em;color:var(--muted)}
.px-cta .alt a{color:var(--ink);border-bottom:1px solid rgba(202,210,224,.4)}
@media (max-width:560px){.px-cta .alt a{display:table;margin:8px auto 0}} /* the address gets its own line on phones, by design */
.px-foot{text-align:center;color:#9aa2b3;font-size:13.5px;max-width:760px;margin:34px auto 0;padding:0 var(--pad)}
.px-foot p{margin:0 0 8px}

@media (max-width:1100px){.px-cards{grid-template-columns:repeat(2,1fr)}.px-steps{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){.px-files{grid-template-columns:1fr}}
@media (max-width:560px){
  .px-cards,.px-steps{grid-template-columns:1fr}
  .px-cta .btn-ghost{font-size:14px;padding:13px 16px}
  .px-flow span{font-size:10.5px;letter-spacing:.08em}
  .px-chips span{padding:10px 16px;font-size:12.5px}
}

/* Small phones (placed after the base rules so it wins) */
@media (max-width:400px){
  .px-panel{padding:24px 20px}
  .px-service{letter-spacing:.14em}
  .px-cards h3,.px-steps h3{font-size:17.5px}
}

@media (prefers-reduced-motion:reduce){
  .px-hero-in > *{animation:none}
  .px-flow-run{display:none}
  .px-steps svg .d,.px-steps li.in svg .d{stroke-dashoffset:0;animation:none}
  .px-canvas,.px-bg::after{transition:none}
  .px-cards article{transition:none}
}

/* Current page in the top bar, and the footer link (no inline styles on this page) */
.nav-links a.is-current{color:var(--ink)}
.copy-link{color:inherit}