/* ==========================================================================
   R.J. Gore & Son design system
   White-dominant, near-black graphite, single trust-blue accent.
   Headings: Manrope 800. Body: Inter. Square geometry (no rounded corners).
   Hero: edge-bleed diagonal (concept 2, round 2).
   ========================================================================== */

:root{
  /* Ink / graphite (near-black, never #000) */
  --ink:#1A1C1F; --ink-2:#454A52; --muted:#7A8089;
  /* Paper */
  --paper:#FFFFFF; --paper-2:#F5F6F7; --paper-3:#E9EBEE;
  /* Hairlines */
  --line:#E2E4E8; --line-2:#CDD1D7;
  /* Trust blue. Bright for large fills/graphics; deep for text + buttons on white (AA 8.3:1). */
  --acc:#2E72C2; --acc-d:#1D4E8F; --acc-t:#E7EEF7;

  --container:1240px;
  --pad:clamp(20px,5vw,32px);
  --section-y:clamp(56px,8vw,104px);
  --r:0;                 /* radius: square everywhere */
  --shadow:0 6px 24px rgba(26,28,31,.10);
  --shadow-lg:0 18px 48px rgba(26,28,31,.16);
  --ring:0 0 0 3px var(--acc-t), 0 0 0 4px var(--acc-d);
  --ease:cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset ---------- */
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--paper);color:var(--ink);
  font-family:'Inter',system-ui,-apple-system,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  font-size:16px;line-height:1.6;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{font-family:'Manrope','Inter',sans-serif;font-weight:800;letter-spacing:-.025em;line-height:1.05;margin:0}
p{margin:0}
:focus-visible{outline:none;box-shadow:var(--ring)}

/* ---------- layout helpers ---------- */
.wrap{max-width:var(--container);margin:0 auto;padding:0 var(--pad)}
.section{padding:var(--section-y) 0}
.section--paper2{background:var(--paper-2)}
.section--ink{background:var(--ink);color:#fff}
.kicker{display:inline-block;font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase;color:var(--acc-d)}
.kicker--light{color:var(--acc)}
.section-head{max-width:62ch}
.section-head h2{font-size:clamp(28px,4.4vw,46px);margin:.5rem 0 0}
.section-head p{color:var(--ink-2);margin-top:.75rem;font-size:1.05rem;max-width:60ch}
.section--ink .section-head p{color:#C9CDD3}
.center{text-align:center;margin-inline:auto}
.stripe{height:6px;width:100%;background:repeating-linear-gradient(45deg,var(--acc) 0 12px,var(--ink) 12px 24px)}
.skip-link{position:absolute;left:-999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;z-index:1200}
.skip-link:focus{left:8px;top:8px}

/* ---------- buttons ---------- */
.btn{
  --btn-bg:var(--acc-d);--btn-fg:#fff;
  position:relative;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;
  min-height:48px;padding:.85rem 1.6rem;border:2px solid var(--btn-bg);
  background:var(--btn-bg);color:var(--btn-fg);border-radius:var(--r);
  font-weight:700;font-size:.98rem;letter-spacing:.01em;overflow:hidden;
  transition:transform .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}
.btn::after{ /* shine sweep */
  content:"";position:absolute;inset:0;transform:translateX(-120%);
  background:linear-gradient(100deg,transparent 25%,rgba(255,255,255,.28) 50%,transparent 75%);
  transition:transform .6s var(--ease);
}
.btn:hover{transform:translateY(-2px);box-shadow:var(--shadow)}
.btn:hover::after{transform:translateX(120%)}
.btn--ghost{--btn-bg:transparent;--btn-fg:var(--ink);border-color:var(--ink)}
.btn--ghost:hover{background:var(--ink);color:#fff}
.btn--on-dark{--btn-fg:#fff}
.btn--ghost.btn--on-dark{--btn-fg:#fff;border-color:#fff}
.btn--ghost.btn--on-dark:hover{background:#fff;color:var(--ink)}
.btn--lg{min-height:54px;padding:1rem 2rem;font-size:1.05rem}
.btn-row{display:flex;flex-wrap:wrap;gap:.85rem;margin-top:1.6rem}

/* link with animated blue underline */
.ul-link{position:relative;font-weight:700;color:var(--acc-d)}
.ul-link::after{content:"";position:absolute;left:0;bottom:-3px;height:2px;width:100%;
  background:var(--acc-d);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.ul-link:hover::after{transform:scaleX(1)}

/* ==========================================================================
   PLACEHOLDER MEDIA (blueprint style) — swap for real photos on supply.
   Each placeholder's data-label describes the photo to drop in 1:1.
   ========================================================================== */
.ph{position:relative;background:#1f242b;
  background-image:
    linear-gradient(rgba(120,170,230,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(120,170,230,.10) 1px,transparent 1px);
  background-size:32px 32px;overflow:hidden}
.ph::after{content:attr(data-label);position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  text-align:center;padding:1rem;color:#9fb4cf;font-size:.72rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase}
.ph--light{background:#eef1f5;background-image:
    linear-gradient(rgba(46,114,194,.10) 1px,transparent 1px),
    linear-gradient(90deg,rgba(46,114,194,.10) 1px,transparent 1px)}
.ph--light::after{color:#6b7d92}

/* ==========================================================================
   HEADER
   ========================================================================== */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.86);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid transparent;transition:box-shadow .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(26,28,31,.07)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:1rem;min-height:72px}
.brand{font-family:'Manrope',sans-serif;font-weight:800;font-size:1.3rem;letter-spacing:.01em;color:var(--ink)}
.brand span{color:var(--acc-d)}
.nav-menu{display:flex;align-items:center;gap:1.6rem}
.nav-menu a:not(.btn){position:relative;font-weight:600;color:var(--ink-2);padding:.25rem 0}
.nav-menu a:not(.btn)::after{content:"";position:absolute;left:0;bottom:-4px;height:2px;width:100%;
  background:var(--acc-d);transform:scaleX(0);transform-origin:left;transition:transform .25s var(--ease)}
.nav-menu a:not(.btn):hover{color:var(--ink)}
.nav-menu a:not(.btn):hover::after,.nav-menu a.active::after{transform:scaleX(1)}
.nav-menu a.active{color:var(--ink)}
.nav-toggle{display:none;width:48px;height:48px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";display:block;width:22px;height:2px;background:var(--ink);transition:transform .2s var(--ease),opacity .2s var(--ease)}
.nav-toggle span{position:relative}
.nav-toggle span::before{position:absolute;top:-7px}
.nav-toggle span::after{position:absolute;top:7px}
.nav-toggle[aria-expanded="true"] span{background:transparent}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-7px) rotate(-45deg)}

/* ==========================================================================
   HERO — edge-bleed diagonal (light, photo angled in from the right)
   ========================================================================== */
.hero{position:relative;background:var(--paper);overflow:hidden;border-bottom:1px solid var(--line)}
.hero__media{position:absolute;top:0;right:0;height:100%;width:46%;z-index:0;
  background-size:cover;background-position:center;
  clip-path:polygon(16% 0,100% 0,100% 100%,0 100%)}
.hero .wrap{position:relative;z-index:1;
  padding-top:clamp(56px,10vw,104px);padding-bottom:clamp(56px,10vw,104px)}
.hero__inner{max-width:54%}
.hero h1{font-size:clamp(34px,6vw,64px);margin:.75rem 0 0;letter-spacing:-.03em}
.hero h1 .hl{color:var(--acc-d)}
.hero__lead{margin-top:1.1rem;font-size:clamp(1.05rem,2.2vw,1.25rem);color:var(--ink-2);max-width:50ch}
.hero .stripe{width:64px;height:6px}
.hero__stats{display:flex;flex-wrap:wrap;gap:2rem;margin-top:2.2rem;border-top:1px solid var(--line);padding-top:1.4rem}
.hero__stats b{display:block;font-family:'Manrope',sans-serif;font-weight:800;font-size:1.5rem;line-height:1;color:var(--ink)}
.hero__stats span{font-size:.85rem;color:var(--muted)}

/* inner-page hero (graphite band) */
.hero--page{background:var(--ink);color:#fff;border-bottom:0}
.hero--page .wrap{padding-top:clamp(52px,9vw,88px);padding-bottom:clamp(52px,9vw,88px)}
.hero--page .hero__inner{max-width:760px}
.hero--page h1{font-size:clamp(32px,5.4vw,56px)}
.hero--page h1 .hl{color:var(--acc)}
.hero--page .hero__lead{color:#C9CDD3;max-width:60ch}
.hero--page .kicker{color:var(--acc)}
.crumbs{font-size:.85rem;color:#9aa0a8;margin-bottom:.4rem}
.crumbs a:hover{color:#fff}

/* prose + utilities */
.prose{max-width:65ch}
.prose p{margin-bottom:1.1rem;color:var(--ink-2)}
.prose p:first-of-type{font-size:1.12rem;color:var(--ink)}
.note{border-left:3px solid var(--acc-d);background:var(--acc-t);padding:1rem 1.25rem;color:#173a5e;font-size:.95rem}

/* ==========================================================================
   TRUST STRIP
   ========================================================================== */
.trust{background:var(--paper);border-bottom:1px solid var(--line)}
.trust ul{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line)}
.trust li{background:var(--paper);display:flex;align-items:center;gap:.7rem;padding:1.15rem var(--pad);font-weight:600;color:var(--ink-2);font-size:.95rem}
.trust .mk{flex:0 0 auto;width:10px;height:10px;background:var(--acc)}

/* ==========================================================================
   SERVICE CARDS (3-up)
   ========================================================================== */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:3rem}
.card{background:var(--paper);border:1px solid var(--line);display:flex;flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease)}
.card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:var(--line-2)}
.card__media{aspect-ratio:16/10;width:100%;display:block;object-fit:cover}
.card__body{padding:1.5rem 1.5rem 1.75rem;display:flex;flex-direction:column;flex:1}
.card__body h3{font-size:1.4rem}
.card__rule{height:3px;width:44px;background:var(--acc-d);margin:.7rem 0 1rem;transition:width .25s var(--ease)}
.card:hover .card__rule{width:72px}
.card ul.ticks li{position:relative;padding-left:1.6rem;margin-bottom:.45rem;color:var(--ink-2);font-size:.96rem}
.card ul.ticks li::before{content:"";position:absolute;left:0;top:.55em;width:9px;height:9px;background:var(--acc);clip-path:polygon(0 50%,38% 100%,100% 8%,86% 0,36% 70%)}
.card .ul-link{margin-top:auto;padding-top:1.1rem}

/* ==========================================================================
   WORK GALLERY
   ========================================================================== */
.work-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1rem;margin-top:2.5rem}
.work-grid .tile{aspect-ratio:1/1}
.work-grid .tile.tall{grid-row:span 2;aspect-ratio:auto}
.work-item{position:relative;overflow:hidden;border:1px solid var(--line)}
.work-item .ph,.work-item img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.work-item figcaption{position:absolute;left:0;right:0;bottom:0;z-index:2;padding:.8rem 1rem;font-size:.85rem;font-weight:600;color:#fff;
  background:linear-gradient(180deg,transparent,rgba(26,28,31,.85))}

/* ==========================================================================
   SPLIT / FEATURE
   ========================================================================== */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(2rem,5vw,4.5rem);align-items:center}
.split--reverse .split__media{order:-1}
.split__media{aspect-ratio:4/3;width:100%;display:block;object-fit:cover}
.feature-list{margin-top:1.5rem;display:grid;gap:1.1rem}
.feature-list li{display:flex;gap:.9rem}
.feature-list .n{flex:0 0 auto;width:34px;height:34px;display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:#fff;font-family:'Manrope',sans-serif;font-weight:800;font-size:.9rem}
.feature-list h4{font-size:1.05rem;margin-bottom:.15rem}
.feature-list p{color:var(--ink-2);font-size:.96rem}

/* ==========================================================================
   STEPS (how we work)
   ========================================================================== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:1.5rem;margin-top:3rem}
.step{border-top:3px solid var(--acc-d);padding-top:1.1rem}
.step .num{font-family:'Manrope',sans-serif;font-weight:800;font-size:.85rem;color:var(--acc-d);letter-spacing:.1em}
.step h3{font-size:1.2rem;margin:.4rem 0 .4rem}
.step p{color:var(--ink-2);font-size:.96rem}

/* ==========================================================================
   TESTIMONIALS
   ========================================================================== */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:1.5rem;margin-top:3rem}
.quote{background:var(--paper);border:1px solid var(--line);padding:1.6rem 1.5rem;display:flex;flex-direction:column}
.quote .stars{color:var(--acc);font-size:1rem;letter-spacing:2px;margin-bottom:.6rem}
.quote blockquote{margin:0;font-size:1.02rem;color:var(--ink);line-height:1.55}
.quote cite{margin-top:1.1rem;font-style:normal;font-weight:700;color:var(--ink-2);font-size:.9rem}
.quote cite span{display:block;color:var(--muted);font-weight:600;font-size:.82rem}

/* ==========================================================================
   CTA BAND (graphite)
   ========================================================================== */
.cta-band{position:relative;overflow:hidden}
.cta-band .stripe{position:absolute;top:0;left:0;height:5px}
.cta-band .inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.cta-band h2{font-size:clamp(26px,4vw,40px);max-width:22ch}
.cta-band p{color:#C9CDD3;margin-top:.6rem}

/* ==========================================================================
   FORMS
   ========================================================================== */
.form{display:grid;gap:1.1rem}
.field label{display:block;font-weight:600;font-size:.9rem;margin-bottom:.4rem}
.field input,.field select,.field textarea{
  width:100%;padding:.85rem .9rem;border:1.5px solid var(--line-2);background:#fff;color:var(--ink);
  border-radius:var(--r);font:inherit;transition:border-color .15s var(--ease),box-shadow .15s var(--ease)}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--acc-d);box-shadow:0 0 0 3px var(--acc-t)}
.field textarea{min-height:130px;resize:vertical}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:1.1rem}
.contact-cards{display:grid;gap:1rem}
.contact-cards a.cc{display:flex;align-items:center;gap:1rem;border:1px solid var(--line);padding:1.1rem 1.25rem;background:#fff;
  transition:border-color .18s var(--ease),transform .18s var(--ease)}
.contact-cards a.cc:hover{border-color:var(--acc-d);transform:translateY(-2px)}
.contact-cards .mk{width:42px;height:42px;flex:0 0 auto;background:var(--acc-t);color:var(--acc-d);
  display:flex;align-items:center;justify-content:center;font-weight:800;font-family:'Manrope',sans-serif}
.contact-cards small{display:block;color:var(--muted);font-weight:600;font-size:.78rem;letter-spacing:.04em;text-transform:uppercase}
.contact-cards strong{font-size:1.05rem}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.site-footer{background:#141518;color:#9aa0a8;padding:clamp(48px,7vw,80px) 0 2rem}
.site-footer .cols{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2.5rem}
.site-footer .brand{color:#fff;font-size:1.4rem;display:inline-block;margin-bottom:.8rem}
.site-footer h4{color:#fff;font-size:.85rem;letter-spacing:.12em;text-transform:uppercase;margin-bottom:1rem}
.site-footer a:hover{color:#fff}
.site-footer .fnav li,.site-footer .fcontact li{margin-bottom:.6rem}
.site-footer .fcontact a{color:#C9CDD3}
.site-footer address{font-style:normal;color:#C9CDD3;line-height:1.7}
.site-footer .legal{margin-top:2.5rem;padding-top:1.5rem;border-top:1px solid #26292e;
  display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;font-size:.85rem;color:#7a8089}
.flag{color:var(--acc);font-weight:700}

/* ==========================================================================
   MOTION (reveal on scroll)
   ========================================================================== */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-visible{opacity:1;transform:none}
.stagger>*{opacity:0;transform:translateY(18px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.stagger.is-visible>*{opacity:1;transform:none}
.stagger.is-visible>*:nth-child(2){transition-delay:.08s}
.stagger.is-visible>*:nth-child(3){transition-delay:.16s}
.stagger.is-visible>*:nth-child(4){transition-delay:.24s}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width:980px){
  .cards,.steps,.work-grid,.quotes{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .split--reverse .split__media{order:0}
  .site-footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:820px){
  .nav-toggle{display:inline-flex}
  .nav-menu{position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    padding:.5rem var(--pad) 1.25rem;transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .2s var(--ease),transform .2s var(--ease)}
  .nav-menu.open{opacity:1;transform:none;pointer-events:auto}
  .nav-menu a:not(.btn){padding:.9rem 0;border-bottom:1px solid var(--line)}
  .nav-menu .btn{margin-top:1rem}
  .trust ul{grid-template-columns:1fr 1fr}
  /* hero: drop the angled photo, stack copy full width */
  .hero__media{display:none}
  .hero__inner{max-width:none}
}
@media (max-width:620px){
  .cards,.steps,.work-grid,.quotes,.form-grid{grid-template-columns:1fr}
  .work-grid .tile.tall{grid-row:auto}
  .site-footer .cols{grid-template-columns:1fr}
  .hero__stats{gap:1.25rem}
  .cta-band .inner{flex-direction:column;align-items:flex-start}
}

/* ==========================================================================
   REDUCED MOTION
   ========================================================================== */
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto !important}
  .reveal,.stagger>*{opacity:1 !important;transform:none !important;transition:none !important}
  .btn::after{display:none}
  .btn:hover{transform:none}
  .card:hover{transform:none}
}