:root {
    --primary: #0f172a;    /* Azul Escuro (Corporativo) */
    --accent: #2563eb;     /* Azul Elétrico (Destaque) */
    --whatsapp: #25D366;   /* Verde WhatsApp */
    --text: #334155;
    --light: #f8fafc;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', system-ui, sans-serif; }
body { background-color: var(--light); color: var(--text); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Header */
.header { background: #fff; padding: 20px 0; box-shadow: 0 2px 10px rgba(0,0,0,0.1); position: sticky; top: 0; z-index: 100; }
.header .container { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; }
.logo { display: flex; align-items: center; text-decoration: none; }
.logo-img { height: auto; max-height: 85px; width: auto; max-width: 100%; object-fit: contain; }
nav a { text-decoration: none; color: var(--text); margin-left: 20px; font-weight: 500; transition: 0.3s; }
nav a:hover { color: var(--accent); }
.btn-primary { background: var(--accent); color: white !important; padding: 10px 20px; border-radius: 5px; }
.btn-primary:hover { background: #1d4ed8; }

/* Hero & Carousel */
.hero { position: relative; color: white; padding: 150px 0; text-align: center; overflow: hidden; }
.hero-content { position: relative; z-index: 2; }
.hero-bg-carousel { position: absolute; top: 0; left: 0; width: 100%; height: 100%; z-index: 1; }
.hero-bg-carousel::after { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%; background: rgba(15,23,42,0.85); z-index: 2; }
.hero-bg-carousel .slide { position: absolute; top: 0; left: 0; width: 100%; height: 100%; background-size: cover; background-position: center; opacity: 0; transition: opacity 2s ease-in-out; }
.hero-bg-carousel .slide.active { opacity: 1; }

.hero h2 { font-size: 3.5rem; margin-bottom: 20px; line-height: 1.2; }
.hero p { font-size: 1.2rem; margin-bottom: 40px; color: #cbd5e1; max-width: 800px; margin-left: auto; margin-right: auto; }
.btn-whatsapp { display: inline-block; background: var(--whatsapp); color: white; padding: 15px 30px; text-decoration: none; border-radius: 50px; font-weight: bold; font-size: 1.1rem; transition: transform 0.2s, box-shadow 0.2s; box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); }
.btn-whatsapp:hover { transform: translateY(-3px); box-shadow: 0 6px 20px rgba(37, 211, 102, 0.6); }

/* Services */
.services { padding: 80px 0; }
.section-title { text-align: center; font-size: 2.5rem; margin-bottom: 50px; color: var(--primary); }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 30px; }
.card { background: white; padding: 40px 30px; border-radius: 10px; box-shadow: 0 4px 6px rgba(0,0,0,0.05); text-align: center; transition: 0.3s; border-bottom: 4px solid transparent; }
.card:hover { transform: translateY(-10px); border-bottom: 4px solid var(--accent); box-shadow: 0 10px 20px rgba(0,0,0,0.1); }
.card i { font-size: 3.5rem; color: var(--accent); margin-bottom: 20px; }
.card h3 { color: var(--primary); margin-bottom: 15px; font-size: 1.5rem; }

/* Diferenciais */
.diferenciais { padding: 80px 0; background-color: white; }
.diferenciais-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; }
.diferencial-item { display: flex; align-items: flex-start; gap: 20px; }
.diferencial-icon { background: rgba(37, 99, 235, 0.1); color: var(--accent); width: 60px; height: auto; max-height: 85px; min-width: 60px; border-radius: 50%; display: flex; justify-content: center; align-items: center; font-size: 1.8rem; }
.diferencial-item h4 { color: var(--primary); font-size: 1.3rem; margin-bottom: 10px; }
.diferencial-item p { line-height: 1.6; color: var(--text); }

/* Floating Button */
.float-btn { position: fixed; bottom: 30px; right: 30px; background: var(--whatsapp); color: white; width: 60px; height: auto; max-height: 85px; border-radius: 50%; display: flex; justify-content: center; align-items: center; font-size: 30px; box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4); z-index: 1000; transition: 0.3s; text-decoration: none; }
.float-btn:hover { transform: scale(1.1); }

/* Responsive */
@media(max-width: 768px) {
    .header .container { flex-direction: column; gap: 15px; }
    nav { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
    nav a { margin-left: 0; }
    .hero h2 { font-size: 2.5rem; }
    .hero { padding: 100px 0; }
    .grid { grid-template-columns: 1fr; }
    .diferenciais-grid { grid-template-columns: 1fr; gap: 30px; }
}