/*
 * Sprung Floors Australia design system.
 * Ported from the launch static site: Archivo + IBM Plex Mono,
 * carbon ink, clip yellow, birch ply, ply cream.
 */

:root{
  --ink:#14181A;        /* Carbon */
  --amber:#E7AD0B;      /* Clip Yellow: marks, rules, chips only */
  --amber-ink:#8A6503;  /* Clip Yellow, text-safe on light grounds */
  --ply:#C89E63;        /* Birch Ply */
  --bone:#F2EDE3;       /* Ply Cream */
  --grey:#70767B;       /* Industrial Grey */
  --paper:#FBF9F5;
  --hair:#E5E0D6;
  --hair2:#F0EBE1;
  --ink-soft:#33383B;
}

*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{font-family:'Archivo',system-ui,sans-serif;color:var(--ink);background:var(--paper);
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;cursor:pointer;}
h1,h2,h3{font-family:'Archivo',sans-serif;font-weight:800;letter-spacing:-.01em;line-height:1.08;}
.wrap{max-width:1080px;margin:0 auto;padding:0 32px;}
.narrow{max-width:760px;}
.eyebrow{font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:11px;letter-spacing:.18em;
  text-transform:uppercase;color:var(--amber-ink);margin-bottom:14px;}
.eyebrow.light{color:var(--amber);}
.lead{font-family:'Archivo',sans-serif;font-size:20px;line-height:1.5;color:var(--ink-soft);
  font-weight:400;max-width:640px;}

/* ---- a11y ---- */
.skip-link{position:absolute;left:-9999px;top:0;background:var(--amber);color:var(--ink);
  font-family:'Archivo';font-weight:700;font-size:13px;padding:10px 16px;z-index:100;}
.skip-link:focus{left:0;}

/* ---- nav ---- */
.nav{position:sticky;top:0;z-index:50;background:var(--ink);color:#fff;}
.nav-in{max-width:1200px;margin:0 auto;padding:0 24px;height:66px;display:flex;align-items:center;gap:18px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand .chip{background:var(--bone);padding:6px;display:flex;}
.brand .chip img{width:28px;height:auto;}
.brand .wm{font-family:'Archivo';font-weight:800;font-size:14px;letter-spacing:.01em;line-height:1;}
.brand .wm small{display:block;font-weight:600;font-size:7px;letter-spacing:.2em;color:var(--grey);
  text-transform:uppercase;margin-top:3px;}
.nav-links{display:flex;gap:15px;margin-left:6px;}
.nav-links a{font-family:'Archivo';font-weight:600;font-size:11.5px;letter-spacing:.01em;
  color:#CFCEC9;padding:4px 0;border-bottom:2px solid transparent;transition:color .15s,border-color .15s;white-space:nowrap;}
.nav-links a:hover{color:#fff;}
.nav-links a.on{color:#fff;border-bottom-color:var(--amber);}
.nav-cta{margin-left:auto;}
.nav-cta a{font-family:'Archivo';font-weight:700;font-size:12.5px;background:var(--amber);
  color:#14181A;padding:10px 16px;letter-spacing:.01em;white-space:nowrap;}
.nav-cta a:hover{background:#E0993A;}
.burger{display:none;margin-left:auto;background:none;border:1px solid #555;color:#fff;
  font-size:13px;padding:8px 12px;font-family:'Archivo';font-weight:600;cursor:pointer;}

/* ---- buttons ---- */
.btn{font-family:'Archivo';font-weight:700;font-size:13.5px;letter-spacing:.01em;
  background:var(--amber);color:#14181A;padding:13px 22px;display:inline-block;border:none;
  cursor:pointer;transition:background .15s,transform .12s;}
.btn:hover{background:#E0993A;}
.btn:active{transform:translateY(1px);}
.btn.ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink);}
.btn.ghost:hover{background:var(--ink);color:#fff;}
.cta-band .btn,.evidence .btn{background:var(--amber);}

/* ---- page entrance ---- */
main{animation:fade .35s ease;}
@keyframes fade{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}
section{padding:0;}
.band{background:var(--bone);}
.page-head{padding:74px 32px 30px;}
.page-head h1{font-size:46px;margin:6px 0 22px;max-width:880px;}
.page-head.narrow{max-width:760px;}

/* ---- hero ---- */
.hero{max-width:1180px;margin:0 auto;padding:72px 28px 60px;display:grid;
  grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.hero h1{font-size:54px;margin:4px 0 22px;}
.hero .cta-row{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;}
.hero-fig{background:var(--bone);padding:30px 26px 22px;border:1px solid var(--hair);}
.fig-cap{font-size:12.5px;color:var(--grey);font-family:'IBM Plex Mono',monospace;font-weight:500;
  letter-spacing:.02em;margin-top:14px;line-height:1.4;}

/* ---- cross-section svg ---- */
.xsec{width:100%;height:auto;}
.xsec .lab{font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:11px;fill:var(--ink);letter-spacing:.02em;}
.xsec .lab.amber{fill:#B5701F;}
.xsec .sub{font-family:'Archivo',sans-serif;font-size:9.5px;fill:var(--grey);}
.xsec .lead{stroke:var(--hair);stroke-width:1;}
.xsec .lead.amber{stroke:var(--amber);stroke-width:1.4;}
.xsec .give-t{font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:9px;letter-spacing:.14em;
  text-transform:uppercase;fill:var(--amber-ink);text-anchor:middle;}

/* ---- steps ---- */
.steps{padding:56px 0;}
.steps .wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:36px;}
.step .snum{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:13px;color:var(--amber-ink);letter-spacing:.16em;}
.step h3{font-size:21px;margin:8px 0 8px;}
.step p{font-size:15px;color:var(--ink-soft);}

/* ---- entry grid ---- */
.entry{padding:64px 32px;}
.sec-h{font-size:30px;max-width:760px;}
.sec-h.light{color:#fff;}
.sec-sub{font-family:'Archivo';font-size:17px;color:var(--ink-soft);margin:10px 0 26px;max-width:640px;}
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:28px;}
.entry-card{border:1px solid var(--hair);padding:26px 26px 22px;position:relative;background:var(--paper);
  transition:border-color .15s,transform .15s;}
.entry-card:hover{border-color:var(--amber);transform:translateY(-2px);}
.entry-card .ek{font-family:'Archivo';font-weight:800;font-size:17px;margin-bottom:8px;}
.entry-card p{font-size:14.5px;color:var(--ink-soft);max-width:360px;}
.entry-card .arrow{position:absolute;right:22px;bottom:18px;color:var(--amber-ink);font-size:20px;font-weight:700;}

/* ---- quote / note bands ---- */
.quote-band{padding:60px 0;}
.pull{font-family:'Archivo';font-size:27px;line-height:1.4;font-weight:500;color:var(--ink);
  max-width:840px;}
.note-band{padding:40px 0;}
.note{font-size:14px;color:var(--ink-soft);max-width:760px;}

/* ---- split (system) ---- */
.split{padding:60px 0;}
.split-inner{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center;}
.split-fig{background:var(--paper);border:1px solid var(--hair);padding:26px;}
.split-copy h2{margin-bottom:12px;}
.split-copy h3{font-size:16px;margin:22px 0 10px;letter-spacing:.04em;text-transform:uppercase;
  font-size:12.5px;color:var(--grey);font-weight:700;}
.split-copy p{color:var(--ink-soft);font-size:15.5px;}
.supply{list-style:none;display:grid;grid-template-columns:1fr 1fr;gap:8px 22px;margin-top:6px;}
.supply li{position:relative;padding-left:18px;font-size:14px;color:var(--ink-soft);}
.supply li:before{content:"";position:absolute;left:0;top:8px;width:7px;height:7px;background:var(--amber);}

/* ---- architecture rows ---- */
.arch{padding:64px 32px;}
.arch-row{display:grid;grid-template-columns:60px 1fr;gap:22px;padding:24px 0;border-top:1px solid var(--hair);}
.arch-row:last-child{border-bottom:1px solid var(--hair);}
.anum{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:24px;color:var(--amber-ink);line-height:1;}
.abody h3{font-size:19px;margin-bottom:7px;}
.abody p{color:var(--ink-soft);font-size:15px;max-width:680px;}

/* ---- cta band ---- */
.cta-band{background:var(--ink);padding:46px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.cta-band .sec-h{font-size:25px;}

/* ---- applications ---- */
.app-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding:8px 32px 56px;}
.app-card{border:1px solid var(--hair);border-top:4px solid var(--amber);padding:24px 22px;background:var(--paper);}
.app-card h3{font-size:17px;margin-bottom:9px;}
.app-card p{font-size:14px;color:var(--ink-soft);}
.app-img{margin:-24px -22px 16px;aspect-ratio:16/10;overflow:hidden;background:var(--hair2);}
.app-img img{width:100%;height:100%;object-fit:cover;display:block;}
.app-note{padding:0 32px 40px;font-size:12.5px;color:var(--grey);}

/* ---- audience points ---- */
.pt-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 36px;padding:8px 32px 60px;}
.pt{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;}
.pt-b{width:34px;height:3px;background:var(--amber);margin-top:11px;}
.pt p{font-size:16px;color:var(--ink-soft);}

/* ---- projects ---- */
.proj-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;padding:8px 32px 52px;}
.proj-card{border:1px solid var(--hair);background:var(--paper);}
.proj-img{aspect-ratio:4/3;background:repeating-linear-gradient(45deg,#EDEAE4,#EDEAE4 12px,#E7E3DC 12px,#E7E3DC 24px);
  display:flex;align-items:center;justify-content:center;position:relative;}
.proj-img .ph{font-family:'IBM Plex Mono',monospace;font-weight:600;font-size:11px;letter-spacing:.14em;
  text-transform:uppercase;color:var(--grey);}
.proj-img .ph-tag{position:absolute;top:10px;right:10px;font-family:'IBM Plex Mono',monospace;font-weight:500;
  font-size:9px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink);background:var(--amber);
  padding:3px 8px;border-radius:2px;}
.proj-body{padding:18px 18px 20px;}
.proj-k{font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:10.5px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--grey);margin-bottom:6px;}
.proj-body h3{font-size:17px;margin-bottom:8px;}
.proj-body p{font-size:13.5px;color:var(--ink-soft);}

/* ---- technical ---- */
.tech{padding:8px 32px 50px;border:none;}
.trow{display:grid;grid-template-columns:230px 1fr;gap:28px;padding:20px 0;border-top:1px solid var(--hair);}
.trow:last-child{border-bottom:1px solid var(--hair);}
.tk{font-family:'Archivo';font-weight:700;font-size:14px;}
.tv{color:var(--ink-soft);font-size:15px;max-width:680px;}
.evidence{background:var(--ink);padding:54px 0;}
.ev-head{margin-bottom:28px;}
.ev-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
.ev-card{background:#232323;border-top:4px solid var(--grey);padding:22px 20px;}
.ev-card.ok{border-top-color:#5FA771;}
.ev-card.hold{border-top-color:var(--amber);}
.ev-t{font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:11px;letter-spacing:.14em;text-transform:uppercase;
  color:#fff;margin-bottom:10px;}
.ev-card p{font-size:13.5px;color:#C8C7C2;}
.ev-note{font-family:'Archivo';font-style:italic;font-size:14px;color:#9A9994;margin-top:24px;max-width:780px;}

/* ---- about ---- */
.about-body{padding:6px 32px 70px;}
.about-body p{font-size:17px;color:var(--ink-soft);margin-bottom:16px;}
.about-mark{margin-top:40px;padding-top:30px;border-top:1px solid var(--hair);display:flex;align-items:center;gap:18px;}
.about-mark img{width:64px;}
.about-line{font-family:'IBM Plex Mono',monospace;font-weight:500;font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:var(--grey);}

/* ---- form ---- */
.form-wrap{padding:6px 32px 72px;}
form .grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px;}
.fld{display:flex;flex-direction:column;gap:6px;}
.fld span{font-family:'Archivo';font-weight:600;font-size:12px;letter-spacing:.04em;color:var(--ink);}
.fld input,.fld select,.fld textarea{font-family:'Archivo';font-size:14.5px;padding:11px 12px;
  border:1px solid var(--hair);background:var(--paper);color:var(--ink);width:100%;border-radius:0;}
.fld input:focus,.fld select:focus,.fld textarea:focus{outline:2px solid var(--amber);outline-offset:1px;border-color:var(--amber);}
.intent{border:1px solid var(--hair);padding:16px 16px 14px;margin-bottom:20px;}
.intent legend{font-family:'Archivo';font-weight:600;font-size:12px;letter-spacing:.04em;padding:0 6px;}
.chk-row{display:flex;flex-wrap:wrap;gap:10px 18px;margin-top:8px;}
.chk{display:flex;align-items:center;gap:7px;font-size:13.5px;color:var(--ink-soft);}
.chk input{width:15px;height:15px;accent-color:var(--amber);}
.form-h{font-size:13px;letter-spacing:.1em;text-transform:uppercase;color:var(--grey);margin:8px 0 14px;}
.form-foot{margin-top:24px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.consent{font-size:12.5px;color:var(--grey);max-width:420px;}
.form-errors{border:1px solid var(--amber);border-left:4px solid var(--amber);background:var(--hair2);
  padding:14px 18px;margin-bottom:22px;}
.form-errors h2{font-size:14px;margin-bottom:6px;}
.form-errors li{font-size:13.5px;color:var(--ink-soft);margin-left:18px;}

/* ---- flash ---- */
.flash{max-width:1080px;margin:0 auto;padding:14px 32px 0;}
.flash p{border:1px solid var(--hair);border-left:4px solid var(--amber);background:var(--bone);
  padding:12px 16px;font-size:14px;color:var(--ink-soft);}

/* ---- thanks ---- */
.thanks-body{padding:6px 32px 90px;}
.thanks-body p{font-size:17px;color:var(--ink-soft);margin-bottom:16px;max-width:640px;}
.thanks-body .cta-row{margin-top:30px;display:flex;gap:14px;flex-wrap:wrap;}

/* ---- prose (privacy) ---- */
.prose{padding:6px 32px 80px;}
.prose h2{font-size:20px;margin:30px 0 10px;}
.prose p,.prose li{font-size:15.5px;color:var(--ink-soft);margin-bottom:12px;max-width:680px;}
.prose ul{margin-left:20px;}

/* ---- auth (admin sign-in) ---- */
.auth-wrap{max-width:420px;margin:0 auto;padding:80px 32px 100px;}
.auth-wrap h1{font-size:28px;margin-bottom:22px;}
.auth-wrap .fld{margin-bottom:16px;}
.auth-links{margin-top:18px;font-size:13.5px;}
.auth-links a{border-bottom:2px solid var(--amber);font-weight:600;padding-bottom:1px;}

/* ---- footer ---- */
.foot{background:var(--ink);color:#C8C7C2;padding:48px 0 30px;margin-top:0;}
.foot-in{max-width:1180px;margin:0 auto;padding:0 28px;display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:30px;}
.foot .brand .wm{color:#fff;}
.foot-tag{font-family:'Archivo';font-size:15px;color:#9A9994;margin-top:16px;max-width:300px;}
.foot h4{font-family:'Archivo';font-weight:700;font-size:11px;letter-spacing:.16em;text-transform:uppercase;
  color:#fff;margin-bottom:12px;}
.foot ul{list-style:none;}
.foot li{margin-bottom:8px;}
.foot li a{font-size:13.5px;color:#C8C7C2;}
.foot li a:hover{color:var(--amber);}
.foot-base{max-width:1180px;margin:34px auto 0;padding:18px 28px 0;border-top:1px solid #333;
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:12px;color:#7E7E79;}
.foot-base a{border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px;}
.foot-base a:hover{color:var(--amber);border-bottom-color:var(--amber);}

.contact-direct{margin-top:24px;padding:18px 20px;border:1px solid rgba(28,28,28,.10);border-radius:10px;background:#F4F2EE}
.contact-direct .cd-k{font-size:12px;letter-spacing:.06em;text-transform:uppercase;color:#8A8F94;margin:0 0 6px}
.contact-direct p{margin:0}
.contact-direct .cd-line{font-size:18px;margin-top:4px}
.contact-direct a{color:#14181A;text-decoration:none;border-bottom:2px solid #E7AD0B;font-weight:600;padding-bottom:1px}
.foot-contact{margin-top:6px}
.foot-contact a{color:inherit;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35)}

@media (max-width:880px){
  .nav-links,.nav-cta{display:none;}
  .nav-links.open{display:flex;position:absolute;top:66px;left:0;right:0;background:var(--ink);
    flex-direction:column;padding:18px 28px;gap:14px;border-top:1px solid #333;}
  .burger{display:block;}
  .hero{grid-template-columns:1fr;gap:34px;padding-top:48px;}
  .hero h1{font-size:38px;}
  .page-head h1{font-size:34px;}
  .steps .wrap,.entry-grid,.app-grid,.pt-grid,.proj-grid,.ev-grid,.split-inner,.supply,form .grid2{grid-template-columns:1fr;}
  .trow{grid-template-columns:1fr;gap:6px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
}