/* FREQUENX — mid-fidelity wireframe styles. Neutral grey + one accent. */
:root{
  --bg:#ffffff;--bg-alt:#f4f5f7;--line:#d9dce1;--box:#e6e8ec;--box-dark:#c9cdd4;
  --text:#1f2430;--muted:#6b7280;--accent:#2563eb;--accent-text:#ffffff;
  --radius:6px;--maxw:1140px;--gap:24px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.5}
a{color:inherit;text-decoration:none}
img{max-width:100%}
h1,h2,h3,h4{margin:0 0 .4em;line-height:1.2}
h1{font-size:clamp(2rem,4vw,3.25rem);font-weight:800}
h2{font-size:clamp(1.5rem,2.6vw,2.25rem);font-weight:700}
h3{font-size:1.15rem;font-weight:700}
p{margin:0 0 1em}
.muted{color:var(--muted)}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
section{padding:64px 0}
section.alt{background:var(--bg-alt)}
.section-head{max-width:640px;margin:0 auto 40px;text-align:center}
.eyebrow{display:inline-block;font-size:.75rem;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:8px}

/* wireframe annotation badge */
.wf-note{position:absolute;top:8px;left:8px;font-size:.65rem;letter-spacing:.08em;text-transform:uppercase;background:#111;color:#fff;padding:2px 6px;border-radius:3px;opacity:.7;z-index:5;pointer-events:none}
section,header,footer{position:relative}

/* placeholders */
.ph{background:var(--box);border:1px dashed var(--box-dark);display:flex;align-items:center;justify-content:center;color:var(--muted);font-size:.8rem;text-transform:uppercase;letter-spacing:.08em;border-radius:var(--radius);position:relative;overflow:hidden}
.ph::before,.ph::after{content:"";position:absolute;inset:0;background:linear-gradient(to bottom right,transparent calc(50% - .5px),var(--box-dark) 50%,transparent calc(50% + .5px))}
.ph::after{background:linear-gradient(to bottom left,transparent calc(50% - .5px),var(--box-dark) 50%,transparent calc(50% + .5px))}
.ph span{position:relative;z-index:1;background:var(--box);padding:2px 6px}
.ph.img{aspect-ratio:16/10}
.ph.square{aspect-ratio:1/1}
.ph.avatar{width:96px;height:96px;border-radius:50%;margin:0 auto 12px}
.ph.logo{height:48px}
.ph.icon{width:48px;height:48px;margin-bottom:16px}

/* buttons */
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 22px;border-radius:var(--radius);font-weight:600;border:2px solid var(--text);font-size:.95rem;cursor:pointer;background:transparent;color:var(--text)}
.btn.primary{background:var(--accent);border-color:var(--accent);color:var(--accent-text)}
.btn.whatsapp{background:#25d366;border-color:#25d366;color:#fff}
.btn.ghost{border-color:var(--line)}
.btn-row{display:flex;gap:12px;flex-wrap:wrap}

/* header */
.site-header{border-bottom:1px solid var(--line);background:var(--bg);position:sticky;top:0;z-index:50}
.site-header .container{display:flex;align-items:center;justify-content:space-between;height:72px;gap:20px}
.brand{font-weight:900;letter-spacing:.14em;font-size:1.1rem}
.nav{display:flex;gap:28px;align-items:center}
.nav a{font-weight:500;color:var(--muted)}
.nav a.active{color:var(--text);font-weight:700;border-bottom:2px solid var(--accent)}
.nav-toggle{display:none;background:none;border:1px solid var(--line);border-radius:var(--radius);padding:8px 10px;font-size:1.1rem;cursor:pointer}
.header-cta{display:flex;gap:12px;align-items:center}

/* hero */
.hero{padding:88px 0}
.hero .container{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero p.lead{font-size:1.15rem;color:var(--muted);max-width:520px}
.page-hero{padding:64px 0;background:var(--bg-alt);border-bottom:1px solid var(--line)}
.page-hero .container{max-width:760px;text-align:center}
.breadcrumb{font-size:.8rem;color:var(--muted);margin-bottom:12px}

/* grids */
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-6{grid-template-columns:repeat(6,1fr)}
.card{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.card p{color:var(--muted);font-size:.95rem}
.card .link{color:var(--accent);font-weight:600;font-size:.9rem}
.alt .card{background:#fff}

/* trust bar */
.trust .container{display:flex;flex-direction:column;gap:20px;align-items:center}
.trust .logos{display:grid;grid-template-columns:repeat(6,1fr);gap:16px;width:100%}

/* stats */
.stat{text-align:center}
.stat strong{display:block;font-size:2.5rem;font-weight:800;color:var(--accent)}
.stat span{color:var(--muted);font-size:.9rem}

/* case cards */
.case .ph{margin-bottom:16px}
.tag{display:inline-block;font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;background:var(--bg-alt);border:1px solid var(--line);padding:3px 8px;border-radius:999px;margin-right:6px;color:var(--muted)}
.result{font-weight:700;color:var(--accent)}

/* testimonials */
.quote{border-left:4px solid var(--accent);padding-left:18px}
.quote p{font-size:1.02rem}
.quote .who{display:flex;gap:12px;align-items:center;margin-top:12px}
.quote .who .ph{width:44px;height:44px;border-radius:50%;margin:0}

/* process */
.step{position:relative;padding-top:16px}
.step .num{display:inline-flex;width:40px;height:40px;border-radius:50%;background:var(--accent);color:#fff;align-items:center;justify-content:center;font-weight:800;margin-bottom:14px}

/* faq */
.faq{max-width:760px;margin:0 auto}
.faq details{border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;margin-bottom:10px;background:#fff}
.faq summary{cursor:pointer;font-weight:600;list-style:none;display:flex;justify-content:space-between}
.faq summary::after{content:"+";color:var(--muted)}
.faq details[open] summary::after{content:"–"}
.faq details p{margin:10px 0 0;color:var(--muted)}

/* CTA band */
.cta-band{background:var(--text);color:#fff;text-align:center;padding:72px 0}
.cta-band p{color:#c8ccd4;max-width:560px;margin:0 auto 24px}
.cta-band .btn.ghost{color:#fff;border-color:#555}

/* feature rows (services page) */
.feature{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:40px 0;border-bottom:1px solid var(--line)}
.feature:last-child{border-bottom:0}
.feature.flip .ph{order:2}
.feature ul{padding-left:18px;color:var(--muted);margin:0 0 20px}
.feature ul li{margin-bottom:6px}

/* forms */
form .field{margin-bottom:16px}
form label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px}
form input,form select,form textarea{width:100%;padding:12px;border:1px solid var(--line);border-radius:var(--radius);font:inherit;background:#fff}
form textarea{min-height:130px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-list{list-style:none;padding:0;margin:0 0 24px}
.contact-list li{display:flex;gap:12px;align-items:center;padding:12px 0;border-bottom:1px solid var(--line)}
.contact-list .ph{width:40px;height:40px;margin:0;flex:none}
.socials{display:flex;gap:10px}
.socials .ph{width:40px;height:40px;margin:0}

/* footer */
.site-footer{background:var(--bg-alt);border-top:1px solid var(--line);padding:56px 0 24px;font-size:.9rem}
.site-footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;gap:32px;margin-bottom:40px}
.site-footer h4{font-size:.8rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:12px}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:8px;color:var(--muted)}
.site-footer .legal{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;color:var(--muted);font-size:.8rem;flex-wrap:wrap;gap:8px}

/* floating whatsapp */
.wa-float{position:fixed;right:20px;bottom:20px;width:60px;height:60px;border-radius:50%;background:#25d366;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.7rem;box-shadow:0 6px 20px rgba(0,0,0,.2);z-index:60;text-align:center;line-height:1}

/* responsive */
@media (max-width:900px){
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-6,.trust .logos{grid-template-columns:repeat(3,1fr)}
  .hero .container,.feature{grid-template-columns:1fr}
  .feature.flip .ph{order:0}
  .site-footer .cols{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  section{padding:48px 0}
  .hero{padding:56px 0}
  .grid-2,.grid-3,.grid-4,.form-row{grid-template-columns:1fr}
  .grid-6,.trust .logos{grid-template-columns:repeat(2,1fr)}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;border-bottom:1px solid var(--line);padding:8px 0}
  .nav a{padding:12px 20px;border-bottom:0!important}
  .nav.open{display:flex}
  .nav-toggle{display:inline-block}
  .header-cta .btn{display:none}
  .site-footer .cols{grid-template-columns:1fr}
}