/* RIOBRASIL — design system 2025 */

:root{
  --brand: #1f6f4f;
  --brand-dark: #154f39;
  --brand-light: #e8f3ee;
  --accent: #f2a93b;
  --ink: #17221c;
  --muted: #566159;
  --paper: #ffffff;
  --bg-soft: #f4f8f6;
  --border: #e1e8e4;
  --shadow: 0 10px 30px -12px rgba(21, 41, 32, .18);
  --radius: 14px;
  --maxw: 1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Inter',Arial,Helvetica,sans-serif;
  color:var(--ink);
  background:var(--paper);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-dark);text-decoration:none}
a:hover{color:var(--brand)}
h1,h2,h3,h4{line-height:1.2;margin:0 0 .5em;font-weight:700}
h1{font-size:clamp(1.9rem,3.2vw,2.7rem)}
h2{font-size:clamp(1.5rem,2.4vw,2rem)}
h3{font-size:1.2rem}
p{margin:0 0 1em}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.section{padding:56px 0}
.section-soft{background:var(--bg-soft)}
.eyebrow{
  display:inline-block;text-transform:uppercase;letter-spacing:.08em;
  font-size:.78rem;font-weight:700;color:var(--brand-dark);
  background:var(--brand-light);padding:4px 12px;border-radius:999px;margin-bottom:14px;
}
.lead{font-size:1.1rem;color:var(--muted)}
.center{text-align:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;border-radius:999px;font-weight:600;font-size:.98rem;
  border:2px solid transparent;cursor:pointer;transition:.15s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);color:#fff}
.btn-accent{background:var(--accent);color:#231400}
.btn-accent:hover{background:#e0932a;color:#231400}
.btn-outline{border-color:var(--border);color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--brand);color:var(--brand-dark)}
.btn-whats{background:#25D366;color:#fff}
.btn-whats:hover{background:#1ebe5a;color:#fff}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);
}
.header-inner{
  max-width:var(--maxw);margin:0 auto;padding:12px 20px;
  display:flex;align-items:center;gap:18px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1.1rem;color:var(--ink)}
.brand img{height:64px;width:auto}
.nav-toggle{
  margin-left:auto;display:none;background:none;border:0;cursor:pointer;padding:8px;
}
.nav-toggle span{display:block;width:24px;height:2px;background:var(--ink);margin:5px 0;transition:.2s}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.main-nav a{
  padding:10px 14px;border-radius:8px;font-weight:600;font-size:.92rem;color:var(--ink);
  white-space:nowrap;
}
.main-nav a:hover, .main-nav a.active{background:var(--brand-light);color:var(--brand-dark)}
.header-cta{display:flex;align-items:center;gap:10px;margin-left:8px}
.header-cta .btn{padding:9px 16px;font-size:.9rem}

@media (max-width: 980px){
  .main-nav{
    position:fixed;inset:64px 0 0 0;background:#fff;flex-direction:column;align-items:stretch;
    padding:12px;gap:4px;transform:translateY(-8px);opacity:0;pointer-events:none;transition:.18s;
    overflow-y:auto;
  }
  .main-nav.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .main-nav a{padding:14px 12px;font-size:1.02rem;border-bottom:1px solid var(--border)}
  .nav-toggle{display:block}
  .header-cta{display:none}
}

/* ---------- hero ---------- */
.hero{
  background:linear-gradient(160deg,var(--brand-dark),var(--brand) 70%);
  color:#fff;padding:64px 0 76px;position:relative;overflow:hidden;
}
.hero .container{position:relative;z-index:1}
.hero h1{color:#fff}
.hero .lead{color:#dceee5;max-width:640px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.hero-badge{
  position:absolute;right:-60px;top:-60px;width:340px;height:340px;border-radius:50%;
  background:rgba(255,255,255,.07);
}

.page-hero{
  background:var(--brand-light);padding:44px 0;border-bottom:1px solid var(--border);
}
.page-hero h1{color:var(--brand-dark)}

/* ---------- cards / grid ---------- */
.grid{display:grid;gap:22px}
.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}}

.card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:26px;transition:.15s ease;
}
.card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.card-foto{padding:0;overflow:hidden;text-align:center}
.card-foto-img{height:140px;background-color:var(--brand-light)}
.card-foto-img img{width:100%;height:100%;object-fit:cover;object-position:center;display:block}
.card-foto-placeholder{display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:2rem}
.card-foto h3{padding:14px 12px;margin:0;font-size:1rem}

.card .icon{
  width:52px;height:52px;border-radius:12px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand-dark);font-size:1.4rem;
  margin-bottom:16px;
}
.card h3{margin-bottom:8px}
.card p{color:var(--muted);font-size:.96rem;margin-bottom:14px}
.card .more{font-weight:700;font-size:.9rem}

/* ---------- content blocks ---------- */
.content-block{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.content-block.reverse{grid-template-columns:.9fr 1.1fr}
.content-block.reverse .media{order:2}
@media (max-width:860px){
  .content-block,.content-block.reverse{grid-template-columns:1fr}
  .content-block.reverse .media{order:0}
}
.media img{border-radius:var(--radius);box-shadow:var(--shadow)}
ul.check{list-style:none;margin:0 0 1em;padding:0}
ul.check li{padding-left:28px;position:relative;margin-bottom:10px}
ul.check li::before{
  content:"✓";position:absolute;left:0;top:0;color:var(--brand);font-weight:800;
}

/* ---------- tabs (guia) ---------- */
.tabs{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0}
.tab-btn{
  padding:11px 18px;border-radius:999px;border:2px solid var(--border);background:#fff;
  font-weight:700;font-size:.92rem;cursor:pointer;color:var(--ink);
}
.tab-btn.active{border-color:var(--brand);background:var(--brand);color:#fff}
.tab-panel{display:none}
.tab-panel.active{display:block}

/* ---------- portfolio ---------- */
.client-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;text-align:center;
}
.client-card img{height:70px;width:auto;margin:0 auto 12px;object-fit:contain}
.client-card .tag{font-size:.82rem;color:var(--muted);margin-bottom:12px}

/* ---------- footer ---------- */
.site-footer{background:#132018;color:#cfe0d7;padding:52px 0 26px;margin-top:40px}
.footer-grid{display:grid;grid-template-columns:1.3fr 1fr 1fr;gap:36px}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr}}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:14px}
.site-footer a{color:#cfe0d7}
.site-footer a:hover{color:#fff}
.site-footer .logo{height:38px;margin-bottom:14px}
.footer-social{display:flex;gap:12px;margin-top:16px}
.footer-social a{
  width:38px;height:38px;border-radius:50%;background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;font-size:1.05rem;
}
.footer-social a:hover{background:var(--brand)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;
  font-size:.83rem;color:#93a89c;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
}
.footer-links{display:flex;flex-direction:column;gap:8px;font-size:.93rem}

/* ---------- whatsapp floating button ---------- */
.wa-float{
  position:fixed;right:20px;bottom:20px;z-index:60;
  width:58px;height:58px;border-radius:50%;background:#25D366;color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:1.6rem;
  box-shadow:0 8px 24px -6px rgba(0,0,0,.35);
}

.stat-row{display:flex;gap:36px;flex-wrap:wrap;margin-top:28px}
.stat{min-width:120px}
.stat b{display:block;font-size:2rem;color:var(--brand-dark)}
.stat span{color:var(--muted);font-size:.88rem}

.banner-slot{max-width:var(--maxw);margin:0 auto;padding:8px 20px 0;text-align:center}
.banner-slot:empty{display:none}