/* ---------- Tokens ---------- */
:root{
  --ink: #12181D;
  --ink-soft: #1C242B;
  --ink-line: #2B343B;
  --paper: #E9EDEF;
  --paper-2: #DEE3E5;
  --paper-text: #16202A;
  --paper-text-soft: #3F4C55;
  --copper: #D98A3D;
  --copper-dark: #B96F2A;
  --copper-ink: #4A2B0E;
  --teal: #2F6F6B;
  --whatsapp: #2FA562;
  --whatsapp-dark: #24824D;
  --cream: #F4F1EA;
  --radius: 14px;
  --display: "Big Shoulders Display", sans-serif;
  --body: "Work Sans", sans-serif;
  --wrap: 1180px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--body);
  background:var(--paper);
  color:var(--paper-text);
  line-height:1.55;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
h1,h2,h3{
  font-family:var(--display);
  font-weight:800;
  line-height:1.02;
  margin:0 0 .5rem;
  letter-spacing:.2px;
}
h2{font-size:clamp(1.9rem,3.6vw,2.6rem);}
h3{font-size:1.25rem;font-weight:700;}
p{margin:0 0 1rem;}
ul,ol{margin:0;padding:0;list-style:none;}

.wrap{max-width:var(--wrap);margin:0 auto;padding:0 24px;}

.skip-link{
  position:absolute;left:-999px;top:0;background:var(--copper);color:var(--copper-ink);
  padding:10px 16px;z-index:200;
}
.skip-link:focus{left:16px;top:16px;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 18px;border-radius:10px;
  font-weight:600;font-size:.95rem;
  text-decoration:none;border:1px solid transparent;
  transition:transform .15s ease, background .15s ease;
  white-space:nowrap;
}
.btn .icon{width:18px;height:18px;fill:currentColor;flex:none;}
.btn:active{transform:scale(.97);}
.btn-primary{background:var(--copper);color:#1B1002;}
.btn-primary:hover{background:var(--copper-dark);}
.btn-whatsapp{background:var(--whatsapp);color:#062012;}
.btn-whatsapp:hover{background:var(--whatsapp-dark);}
.btn-ghost{background:transparent;color:var(--cream);border-color:var(--ink-line);}
.btn-ghost:hover{background:var(--ink-soft);}
.btn-lg{padding:15px 24px;font-size:1.05rem;border-radius:12px;}

/* ---------- Header ---------- */
.site-header{
  background:var(--ink);color:var(--cream);
  position:sticky;top:0;z-index:100;
  border-bottom:1px solid var(--ink-line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  padding-top:12px;padding-bottom:12px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--cream);}
.brand-mark{flex:none;}
.brand-name{
  font-family:var(--display);font-weight:800;font-size:1.05rem;line-height:1;
  letter-spacing:.3px;
}
.main-nav{display:flex;gap:22px;margin-left:12px;flex:1;}
.main-nav a{text-decoration:none;color:var(--cream);opacity:.85;font-size:.95rem;font-weight:500;}
.main-nav a:hover{opacity:1;}
.header-actions{display:flex;gap:10px;flex:none;}
.nav-toggle{display:none;background:none;border:0;padding:8px;margin-left:auto;cursor:pointer;}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--cream);margin:5px 0;}
.mobile-nav{display:none;}

@media (max-width:900px){
  .main-nav{display:none;}
  .header-actions{display:none;}
  .nav-toggle{display:block;}
  .mobile-nav{
    display:none;flex-direction:column;background:var(--ink-soft);
    border-top:1px solid var(--ink-line);
  }
  .mobile-nav.open{display:flex;}
  .mobile-nav a{
    padding:14px 24px;text-decoration:none;color:var(--cream);
    border-bottom:1px solid var(--ink-line);font-weight:500;
  }
}

/* ---------- Hero ---------- */
.hero{background:var(--ink);color:var(--cream);}
.hero-inner{
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;
  align-items:center;padding:64px 24px 72px;
}
.eyebrow{
  color:var(--copper);font-weight:600;font-size:.9rem;
  margin-bottom:14px;
}
.hero h1{
  font-size:clamp(2.4rem,5.4vw,3.8rem);
  color:var(--cream);
}
.hero-sub{
  color:#C9D1D6;max-width:46ch;font-size:1.05rem;margin-top:16px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 24px;}
.zone-chips{display:flex;flex-wrap:wrap;gap:10px;}
.zone-chips li{
  border:1px solid var(--ink-line);color:#C9D1D6;
  padding:7px 14px;border-radius:100px;font-size:.85rem;
}
.hero-svg{width:100%;height:auto;}
.hero-ring{fill:none;stroke:var(--ink-line);stroke-width:1;}
.hero-pipe{fill:none;stroke:var(--copper);stroke-width:10;stroke-linecap:round;}
.hero-pipe-2{stroke:var(--teal);}
.hero-node{fill:var(--cream);}
.hero-bolt{fill:var(--copper);}
.hero-key-hole{fill:none;stroke:var(--teal);stroke-width:8;}
.hero-key-notch{fill:var(--teal);}

@media (max-width:860px){
  .hero-inner{grid-template-columns:1fr;padding:40px 20px 48px;}
  .hero-art{order:-1;max-width:220px;margin:0 auto;}
}

/* ---------- Section basics ---------- */
section{padding:72px 0;}
.section-sub{color:var(--paper-text-soft);max-width:60ch;font-size:1.05rem;}

/* ---------- Services ---------- */
.card-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:36px;
}
.service-card{
  background:#fff;border-radius:var(--radius);padding:26px 24px;
  border:1px solid var(--paper-2);
}
.service-icon{width:34px;height:34px;color:var(--copper-dark);margin-bottom:14px;}
.service-card h3{margin-bottom:8px;}
.service-card p{color:var(--paper-text-soft);font-size:.95rem;margin:0;}

@media (max-width:860px){
  .card-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:560px){
  .card-grid{grid-template-columns:1fr;}
}

/* ---------- Process ---------- */
.process{background:var(--paper-2);}
.process-list{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:36px;}
.process-list li{display:flex;gap:16px;align-items:flex-start;}
.process-num{
  font-family:var(--display);font-weight:800;font-size:1.6rem;
  color:var(--copper-dark);flex:none;line-height:1;
  border:2px solid var(--copper-dark);border-radius:50%;
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
}
.process-list h3{margin-bottom:6px;font-size:1.1rem;}
.process-list p{color:var(--paper-text-soft);font-size:.95rem;margin:0;}
@media (max-width:860px){
  .process-list{grid-template-columns:1fr;}
}

/* ---------- Zones ---------- */
.zone-grid{grid-template-columns:repeat(4,1fr);}
.zone-card{
  background:#fff;border-radius:var(--radius);padding:24px;
  border:1px solid var(--paper-2);border-top:3px solid var(--teal);
}
.zone-card h3{margin-bottom:6px;}
.zone-card p{color:var(--paper-text-soft);font-size:.92rem;margin:0;}
@media (max-width:860px){
  .zone-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:560px){
  .zone-grid{grid-template-columns:1fr;}
}

/* ---------- Trust ---------- */
.trust{background:var(--ink);color:var(--cream);}
.trust h2{color:var(--cream);}
.trust-list{
  display:grid;grid-template-columns:1fr 1fr;gap:18px 32px;margin-top:28px;
}
.trust-list li{display:flex;gap:12px;align-items:flex-start;font-size:1rem;color:#DDE3E6;}
.trust-icon{width:22px;height:22px;color:var(--copper);flex:none;margin-top:2px;}
@media (max-width:700px){
  .trust-list{grid-template-columns:1fr;}
}

/* ---------- Final CTA ---------- */
.final-cta{background:var(--copper);color:var(--copper-ink);}
.final-cta-inner{text-align:left;max-width:760px;}
.final-cta h2{color:var(--copper-ink);}
.final-cta p{color:#5A3616;font-size:1.05rem;max-width:56ch;}
.final-cta .btn-primary{background:var(--ink);color:var(--cream);}
.final-cta .btn-primary:hover{background:var(--ink-soft);}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:#B9C2C8;padding:40px 0 96px;}
.footer-inner{
  display:flex;flex-wrap:wrap;gap:24px;justify-content:space-between;
  align-items:flex-start;border-top:1px solid var(--ink-line);padding-top:32px;
}
.footer-brand{display:flex;gap:12px;align-items:center;}
.footer-name{font-family:var(--display);font-weight:800;color:var(--cream);margin:0;font-size:1.1rem;}
.footer-tagline{margin:2px 0 0;font-size:.85rem;}
.footer-info p{margin:0 0 6px;font-size:.9rem;}
.footer-info a{text-decoration:none;color:var(--copper);}
.footer-legal{text-align:right;font-size:.85rem;}
.footer-legal a{color:#B9C2C8;text-decoration:underline;}
.footer-legal p{margin:8px 0 0;}
@media (max-width:700px){
  .footer-inner{flex-direction:column;}
  .footer-legal{text-align:left;}
}

/* ---------- Sticky mobile bar ---------- */
.sticky-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:150;
  background:var(--ink);border-top:1px solid var(--ink-line);
  padding:10px 12px;gap:10px;
}
.sticky-btn{
  flex:1;display:flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 10px;border-radius:10px;font-weight:600;text-decoration:none;font-size:.95rem;
}
.sticky-btn .icon{width:18px;height:18px;fill:currentColor;}
.sticky-call{background:var(--copper);color:#1B1002;}
.sticky-whatsapp{background:var(--whatsapp);color:#062012;}
@media (max-width:900px){
  .sticky-bar{display:flex;}
  body{padding-bottom:74px;}
}

/* ---------- Focus states ---------- */
a:focus-visible,button:focus-visible{
  outline:3px solid var(--teal);outline-offset:2px;
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;}
}