@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root{
  --bg:#0b1113;
  --surface:#0f171a;
  --surface-2:#121d21;
  --line:rgba(255,255,255,.10);

  --text:#e9eef1;
  --muted:#a9b4ba;

  /* Azul petróleo */
  --petrol:#0b2b2a;
  --petrol-2:#0f3a38;
  --accent:#1fa6a0;
  --primary:#2f6fda;

  --shadow: 0 18px 60px rgba(0,0,0,.35);
  --radius: 16px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family:'Inter', system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background:
    radial-gradient(900px 600px at 10% 10%, rgba(47,111,218,.18), transparent 60%),
    radial-gradient(900px 600px at 90% 20%, rgba(31,166,160,.16), transparent 60%),
    linear-gradient(180deg, #081012 0%, #070c0e 100%);
}

/* Layout */
.container{ width:92%; max-width:1200px; margin:0 auto; }
.main{ padding-top:84px; }

/* Header */
.header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:1000;
  background:rgba(7,12,14,.72);
  backdrop-filter: blur(10px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition: all .25s ease;
}
.header.scrolled{
  background:rgba(7,12,14,.92);
  box-shadow: 0 12px 40px rgba(0,0,0,.35);
}

.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:14px 0;
}

.brand{
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  color:var(--text);
}
.brand-mark{
  width:12px; height:12px;
  border-radius:999px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 0 0 6px rgba(47,111,218,.12);
}
.brand-text{
  font-weight:700;
  letter-spacing:1.4px;
}

/* Nav links */
.nav-links{
  display:flex;
  align-items:center;
  gap:18px;
}
.nav-links a{
  text-decoration:none;
  color:var(--muted);
  font-weight:600;
  font-size:14px;
  padding:10px 10px;
  border-radius: 10px;
  transition: all .2s ease;
}
.nav-links a:hover{
  color:var(--text);
  background:rgba(255,255,255,.06);
}
.nav-links a.active{
  color:var(--text);
  background:rgba(31,166,160,.10);
  border:1px solid rgba(31,166,160,.18);
}

.cta-header{
  text-decoration:none;
  color:#061012;
  font-weight:700;
  font-size:14px;
  padding:10px 14px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), #55d6d1);
  box-shadow: 0 10px 26px rgba(31,166,160,.18);
  transition: transform .15s ease;
}
.cta-header:hover{ transform: translateY(-1px); }

.desktop-only{ display:inline-flex; }
.mobile-only{ display:none; }

/* Hamburger */
.menu-toggle{
  display:none;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  border-radius: 12px;
  padding:10px;
  cursor:pointer;
}
.menu-toggle span{
  display:block;
  width:20px;
  height:2px;
  background:var(--text);
  margin:4px 0;
  border-radius: 2px;
}

/* Hero */
.hero{
  padding:84px 0 38px 0;
}
.hero .kicker{
  display:inline-flex;
  gap:8px;
  align-items:center;
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:rgba(233,238,241,.78);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
  padding:10px 12px;
  border-radius: 999px;
}
.hero h1{
  margin:18px 0 12px 0;
  font-size:46px;
  line-height:1.05;
  letter-spacing:-.02em;
}
.hero p{
  margin:0 0 18px 0;
  color:var(--muted);
  font-size:16px;
  max-width: 62ch;
}
.hero-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:18px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  text-decoration:none;
  border-radius: 14px;
  padding:12px 16px;
  font-weight:700;
  font-size:14px;
  border:1px solid transparent;
  transition: all .15s ease;
}
.btn-primary{
  color:#061012;
  background: linear-gradient(135deg, var(--primary), #6aa8ff);
  box-shadow: 0 14px 30px rgba(47,111,218,.18);
}
.btn-primary:hover{ transform: translateY(-1px); }
.btn-outline{
  color:var(--text);
  background: rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.10);
}
.btn-outline:hover{
  background: rgba(255,255,255,.06);
}

/* Sections */
.section{ padding:40px 0; }
.section-title{
  font-size:26px;
  margin:0 0 12px 0;
}
.section-subtitle{
  margin:0 0 18px 0;
  color:var(--muted);
  max-width: 70ch;
}

.grid{ display:grid; gap:16px; }
.grid-2{ grid-template-columns: repeat(2, minmax(0,1fr)); }
.grid-3{ grid-template-columns: repeat(3, minmax(0,1fr)); }

.card{
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
  border-radius: var(--radius);
  padding:18px;
  box-shadow: var(--shadow);
}
.card h3{ margin:0 0 8px 0; font-size:18px; }
.card p{ margin:0; color:var(--muted); line-height:1.5; }
.card .tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:10px;
  color:rgba(233,238,241,.86);
  font-weight:700;
  font-size:12px;
  letter-spacing:.08em;
  text-transform:uppercase;
}

/* Feature list */
.list{
  margin:0;
  padding-left:18px;
  color:var(--muted);
  line-height:1.6;
}
.list li{ margin:8px 0; }

/* Callout */
.callout{
  border-radius: var(--radius);
  padding:20px;
  border: 1px solid rgba(31,166,160,.20);
  background: linear-gradient(180deg, rgba(31,166,160,.10), rgba(255,255,255,.03));
}
.callout strong{ display:block; margin-bottom:6px; }
.callout p{ margin:0; color:var(--muted); }

/* Form */
.form{
  display:grid;
  gap:14px;
}
.field label{
  display:block;
  font-weight:700;
  font-size:13px;
  margin-bottom:8px;
}
.field input, .field textarea{
  width:100%;
  padding:12px 12px;
  border-radius: 12px;
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(0,0,0,.18);
  color: var(--text);
  outline: none;
}
.field input:focus, .field textarea:focus{
  border-color: rgba(31,166,160,.45);
  box-shadow: 0 0 0 4px rgba(31,166,160,.12);
}
.field textarea{ min-height: 140px; resize: vertical; }

.form-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  align-items:center;
}
.helper{
  font-size:12px;
  color: var(--muted);
}

/* Footer */
.footer{
  border-top:1px solid rgba(255,255,255,.06);
  margin-top: 30px;
  padding: 34px 0 18px 0;
  background: rgba(7,12,14,.60);
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 18px;
  align-items:start;
}
.footer-col h4{ margin:0 0 10px 0; }
.footer-list{
  list-style:none;
  padding:0; margin:0;
  color:var(--muted);
}
.footer-list li{ margin:10px 0; }
.footer-list a{ color:var(--text); text-decoration:none; }
.footer-list a:hover{ text-decoration: underline; }
.footer-brand{ display:flex; align-items:center; gap:10px; margin-bottom: 10px; }
.footer-bottom{ margin-top: 18px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.06); }
.muted{ color:var(--muted); }

/* Reveal animation */
.reveal{ opacity:0; transform: translateY(16px); transition: all .55s ease; }
.reveal.active{ opacity:1; transform:none; }

/* Responsive */
@media (max-width: 920px){
  .footer-grid{ grid-template-columns: 1fr 1fr; }
  .hero h1{ font-size:38px; }
}
@media (max-width: 760px){
  .menu-toggle{ display:inline-block; }
  .desktop-only{ display:none; }
  .mobile-only{ display:inline-flex; }

  .nav-links{
    position:absolute;
    top:64px;
    right:16px;
    left:16px;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    padding:12px;
    background: rgba(15,23,26,.98);
    border:1px solid rgba(255,255,255,.10);
    border-radius: 16px;
    box-shadow: var(--shadow);
  }
  .nav-links.open{ display:flex; }
  .nav-links a{ padding:12px 12px; }

  .grid-2{ grid-template-columns: 1fr; }
  .grid-3{ grid-template-columns: 1fr; }
  .hero{ padding-top: 78px; }
  .hero h1{ font-size:32px; }
}

/* ========================= */
/* BLOG ARTICLE LAYOUT PRO  */
/* ========================= */

.article-container{
  max-width: 760px;
  margin: 0 auto;
  padding: 20px;
}

.article-meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color: var(--muted);
  margin-bottom:18px;
}

.article-content{
  font-size:18px;
  line-height:1.75;
  color: var(--text);
}

.article-content h2{
  margin-top:40px;
  margin-bottom:14px;
  font-size:26px;
}

.article-content h3{
  margin-top:28px;
  margin-bottom:10px;
  font-size:20px;
}

.article-content p{
  margin-bottom:18px;
  color: var(--muted);
}

.article-content ul{
  margin:18px 0;
  padding-left:20px;
  color: var(--muted);
}

.article-content li{
  margin-bottom:10px;
}

.article-cta{
  margin-top:50px;
  padding:28px;
  border-radius: 16px;
  border:1px solid rgba(31,166,160,.25);
  background: linear-gradient(180deg, rgba(31,166,160,.12), rgba(255,255,255,.04));
}

.article-cta h3{
  margin-top:0;
}

.breadcrumb{
  font-size:13px;
  color: var(--muted);
  margin-bottom:16px;
}

.breadcrumb a{
  color: var(--muted);
  text-decoration:none;
}

.breadcrumb a:hover{
  text-decoration: underline;
}