/* ==========================================================================
   ARX ENGINEERS — Design tokens
   Palette: deep maroon (brand), warm cream (surface), charcoal (ink),
            concrete grey (muted), warm white (paper)
   Signature: the "arch" — every ARX wordmark is built from arches (A R X).
   That arch shape recurs as a structural motif: image tops, card corners,
   the section divider, the process markers.
   ========================================================================== */

:root{
  --maroon-900:#2b0909;
  --maroon:#370c0c;
  --maroon-700:#4a1414;
  --maroon-500:#6b2020;
  --cream:#efe6db;
  --paper:#faf6f0;
  --white:#ffffff;
  --charcoal:#1c1512;
  --ink-soft:#3a322e;
  --stone:#8a7f76;
  --stone-200:#d9cfc3;
  --stone-100:#e8e0d5;
  --line:rgba(28,21,18,0.12);
  --line-on-dark:rgba(255,255,255,0.16);

  --font-display:'Fraunces', 'Iowan Old Style', 'Georgia', serif;
  --font-body:'General Sans','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;

  --arch: 999px 999px 8px 8px;
  --arch-lg: 3000px 3000px 12px 12px;
  --radius-card: 4px;

  --container: 1240px;
  --gutter: clamp(20px, 5vw, 64px);

  --ease: cubic-bezier(.22,.61,.36,1);
}

@media (prefers-color-scheme: dark){ :root{ color-scheme: light; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important; scroll-behavior:auto !important; }
}

body{
  margin:0;
  font-family:var(--font-body);
  background:var(--paper);
  color:var(--charcoal);
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}

img{ max-width:100%; display:block; }
a{ color:inherit; }
button{ font-family:inherit; }

.container{ max-width:var(--container); margin:0 auto; padding:0 var(--gutter); }

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:600;
  line-height:1.08;
  margin:0 0 .5em;
  letter-spacing:-0.01em;
  color:var(--charcoal);
}
h1{ font-size:clamp(2.6rem, 6vw, 5rem); font-weight:560; }
h2{ font-size:clamp(2rem, 4.2vw, 3.2rem); }
h3{ font-size:clamp(1.3rem, 2.2vw, 1.7rem); }
p{ margin:0 0 1em; color:var(--ink-soft); }
.lede{ font-size:clamp(1.05rem,1.6vw,1.3rem); color:var(--ink-soft); max-width:46ch; }

.eyebrow{
  display:inline-flex; align-items:center; gap:.5em;
  font-family:var(--font-body); font-weight:600; font-size:.78rem;
  letter-spacing:.14em; text-transform:uppercase; color:var(--maroon);
  margin-bottom:1.1em;
}
.eyebrow::before{ content:''; width:22px; height:2px; background:var(--maroon); border-radius:2px; }

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:.5em;
  font-family:var(--font-body); font-weight:600; font-size:.95rem;
  padding:.95em 1.7em; border-radius:var(--radius-card);
  text-decoration:none; cursor:pointer; border:1.5px solid transparent;
  transition:transform .35s var(--ease), background .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease);
  white-space:nowrap;
}
.btn:hover{ transform:translateY(-2px); }
.btn-primary{ background:var(--maroon); color:var(--white); }
.btn-primary:hover{ background:var(--maroon-900); }
.btn-outline{ background:transparent; color:var(--charcoal); border-color:var(--line); }
.btn-outline:hover{ border-color:var(--charcoal); }
.btn-on-dark{ background:transparent; color:var(--cream); border-color:var(--line-on-dark); }
.btn-on-dark:hover{ border-color:var(--cream); }
.btn-cream{ background:var(--cream); color:var(--maroon); }
.btn-cream:hover{ background:var(--white); }
.btn-lg{ padding:1.1em 2.1em; font-size:1rem; }
.btn-sm{ padding:.65em 1.2em; font-size:.85rem; }

/* ---------- Nav ---------- */
.nav{
  position:sticky; top:0; z-index:100;
  background:rgba(250,246,240,0.88); backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:padding .3s var(--ease), background .3s var(--ease);
}
.nav-inner{ display:flex; align-items:center; justify-content:space-between; padding:22px var(--gutter); max-width:var(--container); margin:0 auto; transition:padding .3s var(--ease); }
.nav.is-compact .nav-inner{ padding-top:12px; padding-bottom:12px; }
.nav-logo{ display:flex; align-items:center; gap:.6em; text-decoration:none; }
.nav-logo img{ height:26px; width:auto; }
.nav-logo span{ font-family:var(--font-display); font-weight:600; font-size:1.05rem; letter-spacing:.02em; color:var(--maroon); }
.nav-links{ display:flex; align-items:center; gap:2.2em; list-style:none; margin:0; padding:0; }
.nav-links a{ text-decoration:none; font-size:.92rem; font-weight:500; color:var(--ink-soft); position:relative; padding:.2em 0; }
.nav-links a::after{ content:''; position:absolute; left:0; bottom:-2px; width:0; height:1.5px; background:var(--maroon); transition:width .3s var(--ease); }
.nav-links a:hover::after{ width:100%; }
.nav-links a.active{ color:var(--maroon); }
.nav-cta{ display:flex; align-items:center; gap:1.6em; }
.nav-phone{ display:none; font-size:.88rem; font-weight:600; text-decoration:none; color:var(--charcoal); }
.nav-toggle{ display:none; background:none; border:none; cursor:pointer; padding:6px; }
.nav-toggle span{ display:block; width:22px; height:2px; background:var(--charcoal); margin:5px 0; transition:transform .3s, opacity .3s; }

@media (max-width:980px){
  .nav-links{ position:fixed; inset:0 0 0 auto; width:min(78vw,340px); height:100vh; background:var(--paper);
    flex-direction:column; align-items:flex-start; padding:110px 32px 32px; gap:1.6em;
    transform:translateX(100%); transition:transform .4s var(--ease); box-shadow:-10px 0 40px rgba(0,0,0,.08); }
  .nav-links.open{ transform:translateX(0); }
  .nav-links a{ font-size:1.15rem; }
  .nav-toggle{ display:block; z-index:110; }
  .nav-cta .btn-primary{ padding:.7em 1.1em; font-size:.85rem; }
}
@media (min-width:640px){ .nav-phone{ display:inline; } }

/* ---------- Sections ---------- */
section{ padding:clamp(64px,9vw,132px) 0; }
.section-tight{ padding:clamp(40px,6vw,72px) 0; }
.bg-cream{ background:var(--cream); }
.bg-charcoal{ background:var(--charcoal); color:var(--cream); }
.bg-charcoal h2,.bg-charcoal h3{ color:var(--white); }
.bg-charcoal p{ color:var(--stone-200); }
.bg-maroon{ background:var(--maroon); color:var(--cream); }
.bg-maroon h2,.bg-maroon h3{ color:var(--white); }
.bg-maroon p{ color:var(--cream); opacity:.88; }

.section-head{ max-width:640px; margin-bottom:56px; }
.section-head.center{ margin-left:auto; margin-right:auto; text-align:center; }

/* ---------- Hero ---------- */
.hero{ position:relative; padding-top:clamp(64px,10vw,120px); overflow:hidden; }
.hero-grid{ display:grid; grid-template-columns:1.05fr .95fr; gap:56px; align-items:center; }
.hero-copy h1{ margin-bottom:.4em; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin:2em 0 2.2em; }
.trust-strip{ display:flex; flex-wrap:wrap; gap:22px 30px; padding-top:1.6em; border-top:1px solid var(--line); }
.trust-strip li{ list-style:none; display:flex; align-items:center; gap:.55em; font-size:.85rem; font-weight:600; color:var(--ink-soft); }
.trust-strip svg{ flex:none; color:var(--maroon); }
.hero-media{ position:relative; }
.hero-media-frame{
  position:relative; border-radius: var(--arch);
  overflow:hidden; aspect-ratio:4/5; background:var(--stone-100);
  box-shadow: 0 30px 70px -20px rgba(43,9,9,.35);
}
.hero-media-frame img{ width:100%; height:100%; object-fit:cover; }
.hero-tag{
  position:absolute; left:-18px; bottom:34px; background:var(--maroon); color:var(--white);
  padding:16px 22px; border-radius:4px; max-width:230px; font-size:.82rem; font-weight:600;
  box-shadow:0 18px 40px -12px rgba(43,9,9,.5);
}
@media (max-width:980px){
  .hero-grid{ grid-template-columns:1fr; }
  .hero-tag{ left:16px; bottom:16px; }
}

/* ---------- Trust / credibility grid ---------- */
.cred-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:6px; overflow:hidden; }
.cred-item{ background:var(--paper); padding:36px 32px; }
.cred-item svg{ color:var(--maroon); margin-bottom:18px; }
.cred-item h3{ font-size:1.05rem; margin-bottom:.4em; }
.cred-item p{ font-size:.92rem; margin:0; }
@media (max-width:820px){ .cred-grid{ grid-template-columns:1fr; } }

/* ---------- Services ---------- */
.service-grid{ display:grid; grid-template-columns:repeat(2,1fr); gap:28px; }
.service-card{
  display:flex; flex-direction:column; background:var(--paper); border:1px solid var(--line);
  border-radius:6px; overflow:hidden; text-decoration:none; color:inherit;
  transition:transform .4s var(--ease), box-shadow .4s var(--ease);
}
.service-card:hover{ transform:translateY(-6px); box-shadow:0 24px 48px -20px rgba(28,21,18,.25); }
.service-card-media{ aspect-ratio:16/10; overflow:hidden; border-radius:0 0 var(--arch-lg) 0; }
.service-card-media img{ width:100%; height:100%; object-fit:cover; transition:transform .6s var(--ease); }
.service-card:hover .service-card-media img{ transform:scale(1.06); }
.service-card-body{ padding:30px 30px 32px; display:flex; flex-direction:column; flex:1; }
.service-price{ font-size:.8rem; font-weight:700; letter-spacing:.03em; color:var(--maroon); margin-bottom:.6em; text-transform:uppercase; }
.service-card-body h3{ margin-bottom:.5em; }
.service-card-body p{ font-size:.94rem; flex:1; }
.service-link{ margin-top:1.2em; font-weight:600; font-size:.9rem; color:var(--maroon); display:inline-flex; align-items:center; gap:.4em; }
.service-link svg{ transition:transform .3s var(--ease); }
.service-card:hover .service-link svg{ transform:translateX(4px); }
@media (max-width:760px){ .service-grid{ grid-template-columns:1fr; } }

/* ---------- Problem selector ---------- */
.match-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); border-radius:6px; overflow:hidden; }
.match-item{ background:var(--paper); padding:34px 26px; }
.match-item .q{ font-family:var(--font-display); font-size:1.15rem; margin-bottom:.6em; color:var(--charcoal); }
.match-item .a{ font-size:.88rem; font-weight:600; color:var(--maroon); display:flex; align-items:center; gap:.4em; }
@media (max-width:900px){ .match-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .match-grid{ grid-template-columns:1fr; } }

/* ---------- Why ARX (editorial) ---------- */
.why-list{ border-top:1px solid var(--line-on-dark); }
.why-row{ display:grid; grid-template-columns:64px 1fr 1.4fr; gap:32px; align-items:start; padding:34px 0; border-bottom:1px solid var(--line-on-dark); }
.why-row .num{ font-family:var(--font-display); font-size:1.1rem; color:var(--stone-200); }
.why-row h3{ color:var(--white); margin:0; }
.why-row p{ margin:0; }
@media (max-width:760px){ .why-row{ grid-template-columns:40px 1fr; } .why-row p{ grid-column:1 / -1; } }

/* ---------- Process ---------- */
.process-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:44px; position:relative; }
.process-step{ position:relative; padding-left:0; }
.process-step .step-mark{ font-family:var(--font-display); font-size:2.4rem; color:var(--maroon); margin-bottom:.3em; display:block; }
.process-step h3{ margin-bottom:.4em; }
@media (max-width:820px){ .process-grid{ grid-template-columns:1fr; gap:32px; } }

/* ---------- Certainty band ---------- */
.certainty{ position:relative; min-height:60vh; display:flex; align-items:center; color:var(--white); overflow:hidden; }
.certainty-bg{ position:absolute; inset:0; }
.certainty-bg img{ width:100%; height:100%; object-fit:cover; }
.certainty-bg::after{ content:''; position:absolute; inset:0; background:linear-gradient(180deg, rgba(20,10,10,.78), rgba(43,9,9,.86)); }
.certainty-inner{ position:relative; z-index:1; max-width:760px; }
.certainty h2{ color:var(--white); }
.certainty p{ color:var(--stone-200); }

/* ---------- Credentials strip ---------- */
.stat-grid{ display:grid; grid-template-columns:repeat(5,1fr); gap:1px; background:var(--line-on-dark); border:1px solid var(--line-on-dark); border-radius:6px; overflow:hidden; }
.stat-item{ background:var(--charcoal); padding:30px 20px; text-align:center; }
.stat-item .num{ font-family:var(--font-display); font-size:clamp(1.6rem,3vw,2.3rem); color:var(--white); display:block; margin-bottom:.2em; }
.stat-item .lbl{ font-size:.8rem; color:var(--stone-200); }
@media (max-width:900px){ .stat-grid{ grid-template-columns:repeat(2,1fr); } }

/* ---------- Lead gen form ---------- */
.quote-grid{ display:grid; grid-template-columns:.85fr 1.15fr; gap:64px; align-items:start; }
.quote-panel{ position:sticky; top:110px; }
.quote-panel .phone-link{ display:inline-flex; align-items:center; gap:.6em; margin-top:1.6em; font-weight:700; font-size:1.15rem; text-decoration:none; color:var(--maroon); }
.form-card{ background:var(--paper); border:1px solid var(--line); border-radius:8px; padding:clamp(24px,4vw,44px); box-shadow:0 30px 70px -35px rgba(28,21,18,.25); }
.form-row{ display:grid; grid-template-columns:1fr 1fr; gap:18px; }
.field{ margin-bottom:18px; }
.field label{ display:block; font-size:.82rem; font-weight:600; margin-bottom:.5em; color:var(--charcoal); }
.field .req{ color:var(--maroon); }
.field input,.field select,.field textarea{
  width:100%; padding:.85em 1em; border:1.5px solid var(--line); border-radius:5px;
  font-family:var(--font-body); font-size:.95rem; background:var(--white); color:var(--charcoal);
  transition:border-color .25s var(--ease), box-shadow .25s var(--ease);
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none; border-color:var(--maroon); box-shadow:0 0 0 3px rgba(55,12,12,.12);
}
.field textarea{ resize:vertical; min-height:100px; }
.field-file{ border:1.5px dashed var(--line); border-radius:5px; padding:1.4em; text-align:center; font-size:.85rem; color:var(--stone); cursor:pointer; }
.field-file:hover{ border-color:var(--maroon); color:var(--maroon); }
.form-note{ font-size:.8rem; color:var(--stone); margin-top:.9em; text-align:center; }
.form-status{ display:none; padding:1em 1.2em; border-radius:5px; font-size:.9rem; font-weight:600; margin-bottom:1.2em; }
.form-status.show{ display:block; }
.form-status.success{ background:#eaf3ea; color:#2b5a2b; }
.form-status.error{ background:#f6e6e6; color:var(--maroon); }
@media (max-width:900px){ .quote-grid{ grid-template-columns:1fr; } .quote-panel{ position:static; } }
@media (max-width:560px){ .form-row{ grid-template-columns:1fr; } }

/* ---------- FAQ ---------- */
.faq-list{ border-top:1px solid var(--line); max-width:820px; }
.faq-item{ border-bottom:1px solid var(--line); }
.faq-q{
  width:100%; display:flex; align-items:center; justify-content:space-between; gap:20px;
  background:none; border:none; text-align:left; padding:24px 4px; cursor:pointer;
  font-family:var(--font-display); font-size:1.08rem; color:var(--charcoal);
}
.faq-q .plus{ flex:none; width:20px; height:20px; position:relative; }
.faq-q .plus::before,.faq-q .plus::after{ content:''; position:absolute; background:var(--maroon); transition:transform .3s var(--ease); }
.faq-q .plus::before{ left:0; top:9px; width:20px; height:2px; }
.faq-q .plus::after{ left:9px; top:0; width:2px; height:20px; }
.faq-item.open .plus::after{ transform:rotate(90deg); opacity:0; }
.faq-a{ max-height:0; overflow:hidden; transition:max-height .4s var(--ease); }
.faq-a p{ padding:0 4px 24px; margin:0; max-width:70ch; }

/* ---------- Final CTA ---------- */
.final-cta{ text-align:center; }
.final-cta .section-head{ margin:0 auto 40px; max-width:680px; }
.final-cta-actions{ display:flex; justify-content:center; flex-wrap:wrap; gap:16px; }
.final-contact{ margin-top:28px; font-size:.92rem; color:var(--stone-200); }
.final-contact a{ color:var(--white); text-decoration:none; font-weight:600; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--charcoal); color:var(--stone-200); padding:72px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; padding-bottom:48px; border-bottom:1px solid var(--line-on-dark); }
.footer-logo{ display:flex; align-items:center; gap:.6em; margin-bottom:1em; }
.footer-logo img{ height:24px; }
.footer-logo span{ font-family:var(--font-display); color:var(--white); font-size:1.05rem; }
.footer-col h4{ color:var(--white); font-family:var(--font-body); font-size:.82rem; letter-spacing:.08em; text-transform:uppercase; margin-bottom:1.1em; }
.footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:.8em; }
.footer-col a{ text-decoration:none; color:var(--stone-200); font-size:.92rem; transition:color .25s; }
.footer-col a:hover{ color:var(--white); }
.footer-bottom{ display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:12px; padding-top:24px; font-size:.8rem; color:var(--stone); }
@media (max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:560px){ .footer-grid{ grid-template-columns:1fr; } }

/* ---------- Inner page hero (service/about/contact) ---------- */
.page-hero{ padding:clamp(56px,8vw,96px) 0 clamp(40px,6vw,64px); }
.page-hero .eyebrow{ margin-bottom:.8em; }
.breadcrumb{ font-size:.82rem; color:var(--stone); margin-bottom:1.6em; }
.breadcrumb a{ text-decoration:none; color:var(--stone); }
.breadcrumb a:hover{ color:var(--maroon); }

.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:center; }
@media (max-width:860px){ .two-col{ grid-template-columns:1fr; } }
.media-frame{ border-radius:var(--arch); overflow:hidden; aspect-ratio:4/3; }
.media-frame img{ width:100%; height:100%; object-fit:cover; }

.checklist{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:14px; }
.checklist li{ display:flex; gap:.7em; align-items:flex-start; font-size:.98rem; color:var(--ink-soft); }
.checklist svg{ flex:none; margin-top:.2em; color:var(--maroon); }

.who-grid{ display:grid; grid-template-columns:repeat(4,1fr); gap:24px; }
.who-item{ padding:26px 22px; background:var(--paper); border:1px solid var(--line); border-radius:6px; font-size:.92rem; font-weight:600; }
@media (max-width:820px){ .who-grid{ grid-template-columns:1fr 1fr; } }
@media (max-width:520px){ .who-grid{ grid-template-columns:1fr; } }

.price-band{ display:flex; align-items:center; justify-content:space-between; flex-wrap:wrap; gap:20px; padding:32px 36px; background:var(--cream); border-radius:8px; }
.price-band .amount{ font-family:var(--font-display); font-size:2.2rem; color:var(--maroon); }

/* ---------- Reveal on scroll ---------- */
.reveal{ opacity:0; transform:translateY(22px); transition:opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.in{ opacity:1; transform:translateY(0); }

/* ---------- Misc ---------- */
.divider-arch{ height:64px; width:100%; }
.center{ text-align:center; }
.mt-0{ margin-top:0; }
:focus-visible{ outline:2.5px solid var(--maroon); outline-offset:3px; }