/* =========================================================
   ACD Contabilidade — Folha de estilos principal
   ========================================================= */

:root{
  --navy-950:#081b32;
  --navy-900:#0f2a4a;
  --navy-800:#163a63;
  --navy-100:#e8eef6;
  --gold-500:#c9a227;
  --gold-400:#dab949;
  --gold-100:#f7edcc;
  --whatsapp:#25d366;
  --bg:#ffffff;
  --bg-alt:#f5f7fa;
  --text:#1e2a38;
  --text-light:#5b6b7c;
  --border:#e2e8f0;
  --radius-sm:6px;
  --radius:12px;
  --radius-lg:20px;
  --shadow:0 10px 30px -12px rgba(15,42,74,.25);
  --shadow-sm:0 4px 14px -6px rgba(15,42,74,.18);
  --font-heading:'Poppins',sans-serif;
  --font-body:'Inter',sans-serif;
  --container:1160px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--text);
  background:var(--bg);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{font-family:var(--font-heading);color:var(--navy-900);line-height:1.2;margin:0 0 .5em;}
p{margin:0 0 1em;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.eyebrow{
  display:inline-block;
  font-family:var(--font-heading);
  font-size:.75rem;
  font-weight:600;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--gold-500);
  margin-bottom:.75rem;
}
section{padding:72px 0;}
.section-alt{background:var(--bg-alt);}
.section-navy{background:linear-gradient(160deg,var(--navy-900),var(--navy-950));color:#fff;}
.section-navy h2,.section-navy h3{color:#fff;}
.center{text-align:center;}
.section-head{max-width:640px;margin:0 auto 44px;text-align:center;}
.section-head.left{margin:0 0 40px;text-align:left;}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.5em;
  font-family:var(--font-heading);
  font-weight:600;
  font-size:.85rem;
  letter-spacing:.04em;
  text-transform:uppercase;
  padding:14px 28px;
  border-radius:999px;
  border:2px solid transparent;
  cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-primary{background:var(--gold-500);color:var(--navy-950);}
.btn-primary:hover{background:var(--gold-400);box-shadow:var(--shadow-sm);}
.btn-outline{border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline:hover{background:rgba(255,255,255,.12);}
.btn-navy{background:var(--navy-900);color:#fff;}
.btn-navy:hover{background:var(--navy-800);box-shadow:var(--shadow-sm);}
.btn-whatsapp{background:var(--whatsapp);color:#fff;}
.btn-whatsapp:hover{background:#1fb959;box-shadow:var(--shadow-sm);}
.btn-block{display:flex;justify-content:center;width:100%;}

/* =========================== HEADER =========================== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;max-width:var(--container);margin:0 auto;
}
.logo{display:flex;align-items:center;gap:10px;font-family:var(--font-heading);font-weight:700;font-size:1.05rem;color:var(--navy-900);}
.logo img{height:44px;width:auto;}
nav.main-nav{display:flex;align-items:center;gap:6px;}
nav.main-nav ul{display:flex;align-items:center;gap:4px;}
nav.main-nav > ul > li{position:relative;}
nav.main-nav a.nav-link{
  display:flex;align-items:center;gap:4px;
  padding:10px 14px;border-radius:8px;
  font-family:var(--font-heading);font-weight:500;font-size:.92rem;color:var(--navy-900);
  transition:background .15s ease,color .15s ease;
}
nav.main-nav a.nav-link:hover,
nav.main-nav li.open > a.nav-link,
nav.main-nav a.nav-link.active{background:var(--navy-100);color:var(--navy-900);}
.caret{width:9px;height:9px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg);margin-top:-3px;transition:transform .15s ease;}
li.open .caret{transform:rotate(-135deg);margin-top:3px;}
.dropdown{
  position:absolute;top:calc(100% + 8px);left:0;min-width:240px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:8px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .15s ease, transform .15s ease, visibility .15s ease;
}
li.open .dropdown{opacity:1;visibility:visible;transform:translateY(0);}
.dropdown a{display:block;padding:10px 12px;border-radius:8px;font-size:.92rem;color:var(--text);}
.dropdown a:hover{background:var(--bg-alt);color:var(--navy-900);}
.header-cta{display:flex;align-items:center;gap:14px;}
.header-cta .btn{padding:11px 20px;font-size:.78rem;}
.menu-toggle{
  display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px;
}
.menu-toggle span{width:24px;height:2px;background:var(--navy-900);border-radius:2px;transition:transform .2s ease, opacity .2s ease;}

@media (max-width:960px){
  .header-cta .btn-navy{display:none;}
  .menu-toggle{display:flex;}
  nav.main-nav{
    position:fixed;inset:0 0 0 auto;top:73px;height:calc(100% - 73px);
    width:min(320px,85vw);background:#fff;flex-direction:column;align-items:stretch;
    padding:18px;box-shadow:-10px 0 30px rgba(0,0,0,.12);
    transform:translateX(100%);transition:transform .25s ease;overflow-y:auto;
  }
  body.nav-open nav.main-nav{transform:translateX(0);}
  nav.main-nav ul{flex-direction:column;align-items:stretch;gap:2px;width:100%;}
  nav.main-nav a.nav-link{width:100%;justify-content:space-between;}
  .dropdown{position:static;box-shadow:none;border:none;opacity:1;visibility:visible;transform:none;max-height:0;overflow:hidden;padding:0;transition:max-height .2s ease;}
  li.open .dropdown{max-height:400px;padding:4px 0 4px 12px;}
  .header-cta{margin-top:14px;}
  .header-cta .btn{width:100%;justify-content:center;}
  body.nav-open{overflow:hidden;}
}

/* =========================== HERO =========================== */
.hero{
  position:relative;overflow:hidden;
  background:radial-gradient(1100px 600px at 85% -10%, var(--navy-800), var(--navy-950) 60%);
  color:#fff;padding:110px 0 90px;
}
.hero::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,162,39,.35),transparent 70%);
}
.hero-inner{position:relative;max-width:640px;}
.hero h1{color:#fff;font-size:clamp(2.1rem,4vw,3.1rem);letter-spacing:-.01em;}
.hero p.lead{color:rgba(255,255,255,.82);font-size:1.1rem;max-width:520px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px;}
.hero-simple{padding:64px 0 56px;}
.hero-simple .hero-inner{max-width:760px;}

/* =========================== CARDS / GRID =========================== */
.grid{display:grid;gap:24px;}
.grid-3{grid-template-columns:repeat(3,1fr);}
.grid-4{grid-template-columns:repeat(4,1fr);}
.grid-2{grid-template-columns:repeat(2,1fr);}
@media (max-width:900px){.grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}}
@media (max-width:600px){.grid-3,.grid-4,.grid-2{grid-template-columns:1fr;}}

.solution-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px 24px;text-align:center;
  transition:transform .18s ease, box-shadow .18s ease, border-color .18s ease;
}
.solution-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent;}
.solution-card img{width:76px;height:76px;object-fit:contain;margin:0 auto 16px;}
.solution-card h3{font-size:1.05rem;margin-bottom:12px;}
.solution-card .link-more{
  font-family:var(--font-heading);font-weight:600;font-size:.78rem;letter-spacing:.06em;
  color:var(--navy-900);text-transform:uppercase;display:inline-flex;align-items:center;gap:6px;
}
.solution-card .link-more::after{content:"→";transition:transform .15s ease;}
.solution-card:hover .link-more::after{transform:translateX(4px);}

.step-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px 22px;
}
.step-num{
  font-family:var(--font-heading);font-weight:700;color:var(--gold-500);
  font-size:.85rem;letter-spacing:.06em;margin-bottom:8px;display:block;
}
.step-card h3{font-size:1.05rem;margin-bottom:0;}

.simple-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;text-align:center;
}
.simple-card img{width:64px;height:64px;object-fit:contain;margin:0 auto 14px;}
.simple-card h3,.simple-card h4{font-size:1rem;margin:0;}

/* Advantages */
.advantages{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 28px;}
@media (max-width:640px){.advantages{grid-template-columns:1fr;}}
.advantages li{
  display:flex;align-items:flex-start;gap:12px;font-size:.98rem;color:var(--text);
}
.advantages li::before{
  content:"✓";flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  background:var(--gold-100);color:var(--gold-500);font-weight:700;font-size:.78rem;
  display:flex;align-items:center;justify-content:center;margin-top:2px;
}
.section-navy .advantages li::before{background:rgba(201,162,39,.22);}
.section-navy .advantages li{color:rgba(255,255,255,.92);}

/* Two column layout */
.two-col{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
@media (max-width:860px){.two-col{grid-template-columns:1fr;}}
.two-col img{border-radius:var(--radius-lg);width:100%;}

/* Stats */
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;text-align:center;}
@media (max-width:700px){.stats{grid-template-columns:1fr;}}
.stat b{
  display:block;font-family:var(--font-heading);font-size:clamp(2.2rem,4vw,3rem);
  color:var(--gold-400);font-weight:700;
}
.stat span{color:rgba(255,255,255,.78);font-size:.95rem;text-transform:uppercase;letter-spacing:.06em;font-family:var(--font-heading);}

/* Sizes */
.size-card{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background:var(--navy-900);color:#fff;min-height:230px;
  display:flex;align-items:flex-end;padding:26px;
}
.size-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.35;}
.size-card h3{position:relative;color:#fff;margin:0;}

/* CTA banner */
.cta-banner{
  background:var(--gold-100);border-radius:var(--radius-lg);
  padding:44px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-banner p{margin:0;max-width:620px;font-size:1.05rem;color:var(--navy-900);font-weight:500;}

/* Contact */
.contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;}
@media (max-width:860px){.contact-grid{grid-template-columns:1fr;}}
.contact-info-list{display:grid;gap:20px;}
.contact-info-item{
  display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius);padding:18px 20px;
}
.contact-info-item .icon{
  flex:0 0 auto;width:42px;height:42px;border-radius:10px;background:var(--navy-100);
  color:var(--navy-900);display:flex;align-items:center;justify-content:center;font-size:1.1rem;
}
.contact-info-item h4{margin:0 0 4px;font-size:.95rem;text-transform:uppercase;letter-spacing:.04em;color:var(--text-light);font-family:var(--font-heading);}
.contact-info-item p{margin:0;font-weight:600;color:var(--navy-900);}

.contact-form{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:34px;box-shadow:var(--shadow-sm);
}
.form-row{margin-bottom:16px;}
.form-row label{display:block;font-size:.82rem;font-weight:600;color:var(--text-light);margin-bottom:6px;font-family:var(--font-heading);}
.form-row input,.form-row textarea{
  width:100%;padding:13px 14px;border:1px solid var(--border);border-radius:8px;
  font-family:var(--font-body);font-size:.95rem;color:var(--text);background:var(--bg-alt);
  transition:border-color .15s ease, background .15s ease;
}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--navy-800);background:#fff;}
.form-note{font-size:.8rem;color:var(--text-light);margin-top:10px;}

/* Footer */
.site-footer{background:var(--navy-950);color:rgba(255,255,255,.75);padding:52px 0 24px;}
.footer-top{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:24px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-family:var(--font-heading);font-weight:700;}
.footer-logo img{height:38px;}
.social-row{display:flex;gap:10px;}
.social-row a{
  width:38px;height:38px;border-radius:50%;border:1px solid rgba(255,255,255,.25);
  display:flex;align-items:center;justify-content:center;font-size:.85rem;
  transition:background .15s ease, border-color .15s ease;
}
.social-row a:hover{background:var(--gold-500);border-color:var(--gold-500);color:var(--navy-950);}
.footer-bottom{padding-top:20px;text-align:center;font-size:.85rem;color:rgba(255,255,255,.55);}

/* WhatsApp float button */
.wa-float{
  position:fixed;right:22px;bottom:22px;z-index:90;
  width:58px;height:58px;border-radius:50%;background:var(--whatsapp);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:1.6rem;
  box-shadow:0 10px 24px rgba(37,211,102,.45);
  transition:transform .15s ease;
}
.wa-float:hover{transform:scale(1.08);}

@media (max-width:600px){
  section{padding:52px 0;}
  .cta-banner{padding:28px;flex-direction:column;text-align:center;}
  .two-col{gap:32px;}
}