/* =========================================================
   DexaFit KC — Design System
   Brand blue + Montserrat retained per brand guidelines.
   Signature motif: a lab "readout" — monospace data figures,
   scan-line rule, tick-mark dividers — echoing the printed
   DEXA/RMR/VO2 reports this business actually hands clients.
   ========================================================= */

:root{
  /* ---- Brand color (kept) ---- */
  --blue-700:#155b96;
  --blue-600:#1d74bd;
  --blue-500:#46a5fc;   /* brand primary, from live site theme-color */
  --blue-400:#7dc0ff;
  --blue-100:#e9f4ff;
  --blue-50:#f4f9ff;

  /* ---- Neutrals ---- */
  --ink-900:#11151c;
  --ink-700:#2b3242;
  --slate-600:#5a6472;
  --slate-400:#8993a3;
  --line:#e3e8ef;
  --paper:#fbfcfe;
  --white:#ffffff;

  /* ---- Accent (used sparingly: badges, positive data) ---- */
  --amber-500:#e7a13a;
  --green-600:#2a9d6f;

  /* ---- Type ---- */
  --font-display:'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

  /* ---- Scale ---- */
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:18px;
  --shadow-sm:0 1px 2px rgba(17,21,28,.06), 0 1px 1px rgba(17,21,28,.04);
  --shadow-md:0 8px 24px rgba(17,21,28,.08);
  --container:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
}
body{
  margin:0;
  font-family:var(--font-display);
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}
img{max-width:100%;display:block}
a{color:var(--blue-600);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{
  font-family:var(--font-display);
  color:var(--ink-900);
  line-height:1.15;
  margin:0 0 .5em;
  letter-spacing:-.01em;
}
h1{font-size:clamp(2.1rem,4.4vw,3.4rem);font-weight:800}
h2{font-size:clamp(1.6rem,3vw,2.3rem);font-weight:800}
h3{font-size:1.25rem;font-weight:700}
h4{font-size:1.05rem;font-weight:700}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap}
:focus-visible{outline:3px solid var(--blue-500);outline-offset:2px}

/* ---- Eyebrow / data-label micro-type (signature device) ---- */
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--blue-600);
  display:inline-flex;
  align-items:center;
  gap:.5em;
  margin-bottom:.9em;
}
.eyebrow::before{
  content:"";
  width:18px;height:1px;background:var(--blue-500);
}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.5em;
  font-family:var(--font-display);font-weight:700;font-size:.95rem;
  padding:.85em 1.5em;border-radius:999px;border:2px solid transparent;
  cursor:pointer;transition:transform .15s ease, box-shadow .15s ease, background .15s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--blue-500);color:var(--ink-900);}
.btn-primary:hover{background:var(--blue-400);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{border-color:var(--white);color:var(--white)}
.btn-outline:hover{background:rgba(255,255,255,.12);transform:translateY(-1px)}
.btn-dark{background:var(--ink-900);color:var(--white)}
.btn-dark:hover{background:var(--ink-700);transform:translateY(-1px)}
.btn-sm{padding:.6em 1.1em;font-size:.85rem}
.btn-block{width:100%}

/* ---- Header ---- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(251,252,254,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.announce{
  background:var(--ink-900);color:var(--white);text-align:center;
  font-size:.82rem;padding:.5em 1em;font-weight:600;letter-spacing:.01em;
}
.announce a{color:var(--blue-400)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:.6em;font-weight:800;font-size:1.15rem;color:var(--ink-900)}
.brand-logo{height:34px;width:auto;display:block}
.footer-brand-logo{height:30px;width:auto;display:block}
.brand small{display:block;font-family:var(--font-mono);font-weight:500;font-size:.62rem;letter-spacing:.1em;color:var(--slate-600);text-transform:uppercase}
nav.primary-nav{display:flex;align-items:center;gap:26px}
nav.primary-nav>ul{display:flex;align-items:center;gap:22px;list-style:none;margin:0;padding:0}
nav.primary-nav a:not(.btn){color:var(--ink-700);font-weight:600;font-size:.92rem}
nav.primary-nav a:not(.btn):hover{color:var(--blue-600);text-decoration:none}
.has-dropdown{position:relative}
.dropdown{
  position:absolute;top:100%;left:50%;transform:translateX(-50%);
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-md);min-width:230px;padding:8px;
  opacity:0;visibility:hidden;translate:0 6px;transition:all .15s ease;
}
.has-dropdown:hover .dropdown,.has-dropdown:focus-within .dropdown{opacity:1;visibility:visible;translate:0 0}
.dropdown a{display:block;padding:.6em .8em;border-radius:var(--radius-sm);font-size:.88rem!important}
.dropdown a:hover{background:var(--blue-50);text-decoration:none}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-phone{font-family:var(--font-mono);font-weight:600;font-size:.85rem;color:var(--ink-700);white-space:nowrap}
.menu-toggle{display:none;background:none;border:none;cursor:pointer;padding:6px}
.menu-toggle span{display:block;width:24px;height:2px;background:var(--ink-900);margin:5px 0;transition:.2s}

@media (max-width:920px){
  nav.primary-nav{
    position:fixed;inset:64px 0 0 0;background:var(--white);
    flex-direction:column;align-items:stretch;padding:20px 24px;
    transform:translateX(100%);transition:transform .25s ease;overflow-y:auto;
  }
  nav.primary-nav.open{transform:translateX(0)}
  nav.primary-nav>ul{flex-direction:column;align-items:stretch;gap:2px}
  nav.primary-nav>ul>li{border-bottom:1px solid var(--line)}
  nav.primary-nav a:not(.btn){display:block;padding:14px 4px}
  .dropdown{position:static;transform:none;box-shadow:none;border:none;display:none;opacity:1;visibility:visible;padding-left:12px}
  .has-dropdown.open .dropdown{display:block}
  .nav-cta{flex-direction:column;align-items:stretch;margin-top:16px}
  .menu-toggle{display:block}
  .nav-phone{display:none}
}

/* ---- Hero ---- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,var(--ink-900) 0%,#182236 100%);
  color:var(--white);padding:76px 0 60px;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;top:38%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(70,165,252,.5),transparent);
  animation:scan 6s linear infinite;
}
@keyframes scan{0%{top:15%}50%{top:80%}100%{top:15%}}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
@media (max-width:900px){.hero-grid{grid-template-columns:1fr}}
.hero h1{color:var(--white)}
.hero-lede{font-size:1.1rem;color:#c4d3e8;max-width:52ch}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-trust{margin-top:34px;display:flex;gap:26px;flex-wrap:wrap}
.hero-trust div{font-family:var(--font-mono);font-size:.72rem;color:#9fb3cc;letter-spacing:.06em;text-transform:uppercase}
.hero-trust strong{display:block;font-family:var(--font-display);font-size:1.5rem;color:var(--white);font-weight:800;letter-spacing:0}

/* Readout card — the signature element */
.readout{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--radius-lg);
  padding:22px;
  backdrop-filter:blur(6px);
}
.readout-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px dashed rgba(255,255,255,.2);padding-bottom:12px;margin-bottom:14px}
.readout-head span{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.12em;color:#9fb3cc;text-transform:uppercase}
.readout-dot{width:8px;height:8px;border-radius:50%;background:var(--green-600);box-shadow:0 0 0 3px rgba(42,157,111,.25)}
.readout-row{display:flex;justify-content:space-between;align-items:baseline;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.08)}
.readout-row:last-child{border-bottom:none}
.readout-row .label{font-size:.82rem;color:#c4d3e8}
.readout-row .value{font-family:var(--font-mono);font-weight:600;font-size:1.05rem;color:var(--white)}
.readout-row .value small{color:#7dc0ff;font-size:.7rem;margin-left:4px}

/* ---- Sections ---- */
section{padding:64px 0}
.section-tight{padding:40px 0}
.section-head{max-width:640px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.bg-blue-50{background:var(--blue-50)}
.bg-ink{background:var(--ink-900);color:#c4d3e8}
.bg-ink h2,.bg-ink h3{color:var(--white)}
.divider-tick{
  height:1px;background:var(--line);position:relative;margin:0 0 8px;
}

/* ---- Cards / grids ---- */
.grid{display:grid;gap:24px}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
@media (max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}}
@media (max-width:620px){.grid-2,.grid-3,.grid-4{grid-template-columns:1fr}}

.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);
}
.card-service{display:flex;flex-direction:column;height:100%}
.card-icon{
  width:46px;height:46px;border-radius:12px;background:var(--blue-100);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;flex-shrink:0;
}
.card-icon svg{width:24px;height:24px}
.card-service .meta{
  font-family:var(--font-mono);font-size:.72rem;color:var(--slate-600);
  letter-spacing:.04em;margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;justify-content:space-between;
}

.stat-strip{display:flex;flex-wrap:wrap;gap:0;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;background:var(--white)}
.stat-strip div{flex:1 1 160px;padding:22px 20px;border-right:1px solid var(--line)}
.stat-strip div:last-child{border-right:none}
.stat-strip .num{font-family:var(--font-mono);font-weight:700;font-size:1.7rem;color:var(--blue-700)}
.stat-strip .lbl{font-size:.8rem;color:var(--slate-600)}

/* ---- Badges ---- */
.badge{
  display:inline-flex;align-items:center;gap:.4em;font-family:var(--font-mono);
  font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;font-weight:600;
  padding:.35em .75em;border-radius:999px;background:var(--blue-100);color:var(--blue-700);
}
.badge-amber{background:#fbf1e0;color:#8a5a12}
.badge-green{background:#e4f5ee;color:var(--green-600)}

/* ---- Tables (pricing) ---- */
.price-table{width:100%;border-collapse:collapse}
.price-table th,.price-table td{text-align:left;padding:14px 16px;border-bottom:1px solid var(--line)}
.price-table th{font-family:var(--font-mono);font-size:.72rem;letter-spacing:.08em;text-transform:uppercase;color:var(--slate-600)}
.price-table td.price{font-family:var(--font-mono);font-weight:700;color:var(--blue-700);white-space:nowrap}
.price-table tr:hover td{background:var(--blue-50)}

.pricing-card{border:1px solid var(--line);border-radius:var(--radius-lg);padding:28px;background:var(--white);display:flex;flex-direction:column}
.pricing-card.featured{border-color:var(--blue-500);box-shadow:0 0 0 3px var(--blue-100)}
.pricing-card .price{font-family:var(--font-mono);font-size:2rem;font-weight:800;color:var(--ink-900);margin:.2em 0}
.pricing-card .price small{font-size:.9rem;font-weight:500;color:var(--slate-600)}
.pricing-card ul{list-style:none;padding:0;margin:16px 0;flex-grow:1}
.pricing-card ul li{padding:.4em 0;border-top:1px solid var(--line);font-size:.92rem}
.pricing-card ul li:first-child{border-top:none}

/* ---- FAQ accordion ---- */
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;text-align:left;background:none;border:none;cursor:pointer;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding:20px 4px;font-family:var(--font-display);font-weight:700;font-size:1rem;color:var(--ink-900);
}
.faq-q .plus{font-family:var(--font-mono);font-size:1.2rem;color:var(--blue-500);transition:transform .2s}
.faq-item[open] .faq-q .plus{transform:rotate(45deg)}
.faq-a{padding:0 4px 22px;color:var(--slate-600)}
.faq-a p:last-child{margin-bottom:0}
summary::-webkit-details-marker{display:none}
summary{list-style:none}
.faq-filter{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:28px}
.faq-filter button{
  font-family:var(--font-mono);font-size:.75rem;letter-spacing:.04em;text-transform:uppercase;
  padding:.5em 1em;border-radius:999px;border:1px solid var(--line);background:var(--white);cursor:pointer;
}
.faq-filter button.active{background:var(--ink-900);color:var(--white);border-color:var(--ink-900)}

/* ---- Protocol checklist ---- */
.protocol-block{border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;margin-bottom:24px;background:var(--white)}
.protocol-head{background:var(--ink-900);color:var(--white);padding:18px 24px;display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap}
.protocol-head h3{color:var(--white);margin:0}
.protocol-body{padding:22px 24px}
.check-list{list-style:none;padding:0;margin:0}
.check-list li{display:flex;gap:12px;padding:.5em 0;font-size:.95rem}
.check-list li::before{content:"";flex-shrink:0;width:18px;height:18px;margin-top:.15em;border-radius:5px;border:2px solid var(--blue-500);background:var(--blue-50)}
.callout{background:var(--blue-50);border-left:3px solid var(--blue-500);border-radius:0 var(--radius-md) var(--radius-md) 0;padding:16px 20px;font-size:.92rem;margin:16px 0}
.callout.warn{background:#fbf1e0;border-color:var(--amber-500)}

/* ---- Quiz widget ---- */
.quiz{background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow-md)}
.quiz-progress{height:4px;background:var(--line);border-radius:2px;overflow:hidden;margin-bottom:28px}
.quiz-progress div{height:100%;background:var(--blue-500);width:0%;transition:width .3s}
.quiz-options{display:grid;gap:10px;margin-top:20px}
.quiz-option{
  text-align:left;padding:14px 18px;border:1px solid var(--line);border-radius:var(--radius-md);
  background:var(--white);cursor:pointer;font-family:var(--font-display);font-size:.95rem;font-weight:600;color:var(--ink-700);
  transition:all .15s;
}
.quiz-option:hover{border-color:var(--blue-500);background:var(--blue-50)}
.quiz-result{display:none}
.quiz-result.show{display:block}
.quiz-step{display:none}
.quiz-step.show{display:block}

/* ---- Timeline (about) ---- */
.timeline{border-left:2px solid var(--line);margin-left:8px;padding-left:28px}
.timeline-item{position:relative;padding-bottom:30px}
.timeline-item::before{content:"";position:absolute;left:-33px;top:4px;width:10px;height:10px;border-radius:50%;background:var(--blue-500);box-shadow:0 0 0 4px var(--blue-100)}
.timeline-item .yr{font-family:var(--font-mono);color:var(--blue-600);font-weight:700;font-size:.85rem}

/* ---- Contact ---- */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px}
@media (max-width:820px){.contact-grid{grid-template-columns:1fr}}
.field{margin-bottom:16px}
.field label{display:block;font-size:.85rem;font-weight:700;margin-bottom:6px;color:var(--ink-900)}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--radius-sm);
  font-family:var(--font-display);font-size:.95rem;background:var(--white);
}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--blue-500);box-shadow:0 0 0 3px var(--blue-100)}
.map-frame{border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);height:280px}
.map-frame iframe{width:100%;height:100%;border:0}

/* ---- Footer ---- */
footer.site-footer{background:var(--ink-900);color:#9fb3cc;padding:56px 0 24px;font-size:.9rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1)}
@media (max-width:820px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr}}
.footer-grid h4{color:var(--white);font-size:.85rem;letter-spacing:.05em;text-transform:uppercase;margin-bottom:14px}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin-bottom:9px}
.footer-grid a{color:#9fb3cc}
.footer-grid a:hover{color:var(--white)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;padding-top:22px;font-size:.8rem}
.social-row{display:flex;gap:12px}
.social-row a{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.08);display:flex;align-items:center;justify-content:center}
.social-row svg{width:16px;height:16px;fill:#c4d3e8}

/* ---- Cookie banner ---- */
.cookie-banner{
  position:fixed;left:16px;right:16px;bottom:16px;z-index:200;max-width:520px;
  background:var(--ink-900);color:#dbe6f2;border-radius:var(--radius-lg);padding:18px 20px;
  box-shadow:var(--shadow-md);display:flex;gap:14px;align-items:center;flex-wrap:wrap;
  transform:translateY(140%);transition:transform .3s ease;
}
.cookie-banner.show{transform:translateY(0)}
.cookie-banner p{margin:0;font-size:.82rem;flex:1 1 260px}

/* ---- Breadcrumb ---- */
.breadcrumb{font-family:var(--font-mono);font-size:.75rem;color:var(--slate-600);padding:16px 0}
.breadcrumb a{color:var(--slate-600)}
.breadcrumb span{margin:0 6px}

/* ---- Active nav state (set via body[data-page]) ---- */
body[data-page="home"] #nav-home,
body[data-page="dxa"] #nav-services,
body[data-page="vo2"] #nav-services,
body[data-page="rmr"] #nav-services,
body[data-page="arterial"] #nav-services,
body[data-page="pricing"] #nav-pricing,
body[data-page="faq"] #nav-faq,
body[data-page="protocols"] #nav-protocols,
body[data-page="about"] #nav-about,
body[data-page="work"] #nav-work,
body[data-page="contact"] #nav-contact{color:var(--blue-600)}
body[data-page="dxa"] #subnav-dxa,
body[data-page="vo2"] #subnav-vo2,
body[data-page="rmr"] #subnav-rmr,
body[data-page="arterial"] #subnav-arterial{background:var(--blue-50);color:var(--blue-700)}

/* ---- Utility ---- */
.mt-0{margin-top:0}
.text-center{text-align:center}
.small{font-size:.85rem;color:var(--slate-600)}