:root {
    --primary: #8b5cf6;
    --primary-dark: #7c3aed;
    --secondary: #06b6d4;
    --dark-bg: #0a0a0c;
    --card-bg: #16161a;
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --gradient: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    --transition: all 0.3s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
}

html { scroll-behavior: smooth; }

body {
    background-color: var(--dark-bg);
    color: var(--text-main);
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* --- Botões --- */
.btn {
    padding: 14px 28px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: var(--transition);
    cursor: pointer;
}

.btn-sm { padding: 10px 20px; font-size: 0.9rem; }

.btn-primary {
    background: var(--gradient);
    color: white;
}

.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(139, 92, 246, 0.3); }

.btn-outline {
    border: 1px solid rgba(255,255,255,0.2);
    color: white;
}

/* --- Header --- */
header {
    position: fixed;
    top: 0; width: 100%; z-index: 1000;
    padding: 20px 0;
    transition: var(--transition);
}

header.scrolled {
    background: rgba(10, 10, 12, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

nav { display: flex; justify-content: space-between; align-items: center; }

.logo { font-size: 1.5rem; font-weight: 800; color: white; text-decoration: none; }
.logo span { color: var(--primary); }

.nav-links { display: flex; list-style: none; gap: 30px; }
.nav-links a { text-decoration: none; color: var(--text-dim); font-weight: 500; transition: var(--transition); }
.nav-links a:hover { color: var(--primary); }

.mobile-menu-btn { display: none; font-size: 1.5rem; cursor: pointer; }

/* --- Hero --- */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle at top right, rgba(139, 92, 246, 0.15), transparent);
}

.hero h1 { font-size: clamp(2.5rem, 8vw, 4rem); font-weight: 800; line-height: 1.1; margin-bottom: 20px; }
.text-gradient { background: var(--gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.hero p { color: var(--text-dim); font-size: 1.2rem; max-width: 600px; margin: 0 auto 40px; }
.hero-btns { display: flex; justify-content: center; gap: 20px; }

/* --- Sobre --- */
.about { padding: 100px 0; }
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; align-items: center; }
.about-image img { width: 100%; border-radius: 20px; }
.features-list { list-style: none; margin: 20px 0 30px; }
.features-list li { margin-bottom: 10px; display: flex; align-items: center; gap: 10px; }
.features-list i { color: var(--primary); }

/* --- Serviços --- */
.services { padding: 100px 0; background: rgba(255,255,255,0.02); }
.section-title { text-align: center; margin-bottom: 60px; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 30px; }
.service-card { background: var(--card-bg); padding: 40px; border-radius: 20px; transition: var(--transition); border: 1px solid rgba(255,255,255,0.05); }
.service-card:hover { transform: translateY(-10px); border-color: var(--primary); }
.service-icon { font-size: 2rem; margin-bottom: 20px; color: var(--primary); }

/* --- Portfolio --- */
.portfolio { padding: 100px 0; }
.portfolio-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; }
.portfolio-item { position: relative; border-radius: 20px; overflow: hidden; aspect-ratio: 16/9; }
.portfolio-item img { width: 100%; height: 100%; object-fit: cover; transition: 0.5s; }
.portfolio-overlay { position: absolute; inset: 0; background: linear-gradient(to top, black, transparent); display: flex; flex-direction: column; justify-content: flex-end; padding: 30px; opacity: 0; transition: 0.3s; }
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-item:hover img { transform: scale(1.1); }

/* --- Métricas --- */
.metrics { padding: 80px 0; background: var(--gradient); text-align: center; }
.metrics-grid { display: grid; grid-template-columns: repeat(3, 1fr); }
.metric-item h3 { font-size: 3rem; font-weight: 800; }

/* --- FAQ Chat --- */
.faq-chat-container { max-width: 600px; margin: 0 auto; background: var(--card-bg); border-radius: 20px; overflow: hidden; border: 1px solid rgba(255,255,255,0.1); }
.chat-header { background: rgba(255,255,255,0.05); padding: 15px; text-align: center; font-weight: bold; }
.chat-box { height: 300px; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 10px; }
.msg { padding: 10px 15px; border-radius: 15px; max-width: 80%; font-size: 0.9rem; }
.bot { background: #2d2d35; align-self: flex-start; }
.user { background: var(--primary); align-self: flex-end; }
.chat-input { display: flex; padding: 10px; gap: 10px; background: rgba(0,0,0,0.2); }
.chat-input input { flex: 1; background: #1e1e24; border: none; padding: 10px; border-radius: 10px; color: white; outline: none; }
.chat-input button { background: var(--primary); border: none; color: white; width: 40px; border-radius: 10px; cursor: pointer; }

/* --- Footer --- */
footer { padding: 60px 0 20px; border-top: 1px solid rgba(255,255,255,0.05); }
.footer-grid { display: flex; justify-content: space-between; margin-bottom: 40px; }
.social-links { display: flex; gap: 15px; margin-top: 15px; }
.social-links a { font-size: 1.2rem; color: var(--text-dim); }
.copyright { text-align: center; font-size: 0.8rem; color: var(--text-dim); }

/* --- WhatsApp --- */
.whatsapp-float { position: fixed; bottom: 30px; right: 30px; background: #25d366; color: white; width: 60px; height: 60px; border-radius: 50%; display: flex; align-items: center; justify-content: center; font-size: 30px; z-index: 1000; box-shadow: 0 10px 20px rgba(0,0,0,0.3); }

/* --- Mobile --- */
@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: block; }
    .about-grid, .portfolio-grid, .metrics-grid { grid-template-columns: 1fr; }
    .hero-btns { flex-direction: column; }
    .hero h1 { font-size: 2.5rem; }
    .nav-links.active { display: flex; flex-direction: column; position: fixed; top: 0; left: 0; width: 100%; height: 100vh; background: var(--dark-bg); justify-content: center; align-items: center; z-index: 999; }
}