/* Design language inspired by the Framework-style system in design-ref/DESIGN.md:
   black canvas, white type, one orange accent, pill buttons, flat surfaces, single font family. */
:root{
  --canvas:#000; --surface:#1F1F1F; --surface-hi:#2A2422;
  --ink:#fff; --muted:#F2F2F2; --subtle:#b9b4b2;
  --action:#F66331; --action-text:#000;
  --margin:clamp(1.25rem,8vw,8.25rem);
  --radius:.75rem;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body{margin:0;font-family:"Inter","Graphik",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;font-size:1rem;line-height:1.5;color:var(--ink);background:var(--canvas);-webkit-font-smoothing:antialiased}
img,svg{max-width:100%}
a{color:inherit}
:focus-visible{outline:2px solid var(--action);outline-offset:3px}
.container{width:min(100% - 2*var(--margin),1200px);margin-inline:auto}

/* header: transparent over canvas */
.site-header{position:sticky;top:0;z-index:50;background:var(--canvas)}
.nav{display:flex;align-items:center;justify-content:space-between;height:68px}
.brand{display:flex;align-items:center;gap:.75rem;text-decoration:none;font-size:1.25rem;font-weight:600}
.brand b{color:var(--action);font-weight:600}
.menu{display:flex;align-items:center;gap:1.5rem}
.menu a{text-decoration:none;font-size:.875rem;font-weight:500;color:var(--muted)}
.menu a:hover{color:var(--action)}
.menu-btn{display:none;background:none;border:0;padding:.5rem;cursor:pointer}
.menu-btn span{display:block;width:24px;height:2px;background:#fff;margin:5px 0;transition:.2s}

/* buttons: pill only */
.btn{display:inline-block;background:var(--action);color:var(--action-text) !important;font:inherit;font-weight:600;padding:.75rem 1.5rem;border-radius:9999px;border:0;text-decoration:none;cursor:pointer;transition:background .15s}
.btn:hover{background:#ff7a4b}
.btn-sm{padding:.5rem 1rem}
.btn-ghost{background:#fff}
.btn-ghost:hover{background:#e6e6e6}
.on-orange .btn,.btn-dark{background:#000;color:#fff !important}
.on-orange .btn:hover{background:#1F1F1F}

/* type */
.eyebrow{color:var(--action);font-size:.875rem;font-weight:500;text-transform:uppercase;letter-spacing:.08em;margin:0 0 1rem}
h1{font-size:clamp(2.25rem,1.1rem + 5.2vw,6rem);font-weight:600;line-height:1;margin:0 0 1.5rem}
h1 span{color:var(--action)}
h2{font-size:clamp(1.75rem,1rem + 2.6vw,3rem);font-weight:600;line-height:1.25;margin:0 0 1rem}
h3{font-size:1.25rem;font-weight:600;line-height:1.25;margin:0 0 .5rem}
.lead{font-size:1.125rem;line-height:1.75;color:var(--muted);max-width:52ch;margin:0}
.sub{color:var(--muted);line-height:1.75;max-width:60ch;margin:0 0 3rem}
.sub.left{margin-bottom:1.5rem}

/* hero */
.hero{padding:5rem 0 6rem}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:3rem;align-items:center}
.cta-row{display:flex;gap:.75rem;flex-wrap:wrap;margin:2rem 0 1.5rem}
.hero-points{list-style:none;padding:0;margin:0;display:flex;gap:1.5rem;flex-wrap:wrap;color:var(--subtle);font-size:.875rem;font-weight:500}
.hero-points li::before{content:"";display:inline-block;width:.5rem;height:.5rem;border-radius:50%;background:var(--action);margin-right:.5rem}
.hero-art svg{width:100%;height:auto}

/* sections */
.section{padding:6rem 0}
.cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}
.card{background:var(--surface);border-radius:var(--radius);padding:2rem;transition:background .2s}
.card:hover{background:var(--surface-hi)}
.card p{margin:0;color:var(--muted);line-height:1.5}
.icon{width:3rem;height:3rem;border-radius:50%;background:var(--action);display:grid;place-items:center;margin-bottom:1.5rem}
.icon svg{width:24px;height:24px;fill:none;stroke:#000;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}

/* AMC: full orange block, like the orange product card */
.amc{padding:0 0 6rem}
.amc-box{background:var(--action);color:#000;border-radius:var(--radius);padding:3rem 2rem}
.amc-box .eyebrow{color:#000}
.amc-box .sub{color:#000}
.amc-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:center}
.amc-list{list-style:none;margin:0;padding:0;display:grid;gap:1.5rem}
.amc-list b{display:block;font-size:1.125rem}
.amc-list span{display:block;line-height:1.5}

/* why */
.why-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:2rem;margin-top:3rem}
.why-grid>div{background:var(--surface);border-radius:var(--radius);padding:2rem}
.why-grid h3{color:var(--action)}
.why-grid p{margin:0;color:var(--muted)}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:3rem;align-items:start}
.contact-list{list-style:none;padding:0;margin:0;display:grid;gap:1.5rem}
.contact-list b{display:block;font-size:.875rem;font-weight:500;text-transform:uppercase;letter-spacing:.08em;color:var(--action)}
.contact-list a{color:#fff}
.form{background:var(--surface);border-radius:var(--radius);padding:2rem;display:grid;gap:1.5rem}
.form label{display:grid;gap:.25rem;font-size:.875rem;font-weight:500;color:var(--muted)}
.form input,.form select,.form textarea{font:inherit;font-size:1rem;padding:.5rem 0;border:0;border-bottom:1px solid #6b6563;border-radius:0;background:transparent;color:#fff}
.form select option{background:#1F1F1F;color:#fff}
.form input:focus,.form select:focus,.form textarea:focus{outline:0;border-bottom-color:var(--action)}
.form input.err{border-bottom-color:#ff5a5a}
.form .btn{justify-self:start}
.form-note{margin:0;font-size:.875rem;color:var(--subtle)}

/* footer */
.site-footer{padding:2rem 0;font-size:.875rem;color:var(--subtle)}
.foot{display:flex;justify-content:space-between;gap:.75rem;flex-wrap:wrap}
.foot a{color:var(--muted)}

.wa-float{position:fixed;right:1.25rem;bottom:1.25rem;width:3.5rem;height:3.5rem;border-radius:50%;background:var(--action);display:grid;place-items:center;z-index:60}
.wa-float svg{fill:#000}

/* responsive */
@media (max-width:900px){
  .hero-grid,.amc-grid,.contact-grid{grid-template-columns:1fr}
  .hero-art{display:none}
  .hero{padding:3rem 0 4rem}
  .section{padding:4rem 0}
  .amc{padding-bottom:4rem}
  .menu-btn{display:block}
  .menu{position:absolute;left:0;right:0;top:68px;background:var(--canvas);flex-direction:column;align-items:stretch;gap:0;padding:.5rem var(--margin) 1.5rem;display:none;border-top:1px solid #1F1F1F}
  .menu.open{display:flex}
  .menu a{padding:.9rem 0;font-size:1rem}
  .menu a.btn{margin-top:1rem;text-align:center}
  .menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
  .menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
}
@media (prefers-reduced-motion:reduce){*{transition:none !important;scroll-behavior:auto !important}}