:root {
    --neon-blue: #3dc4ff;
    --neon-purple: #7c70ff;
    --brand-silver: #7b8ea5;
    --surface: #f5f8fc;
    --panel: #ffffff;
    --glass-bg: rgba(255, 255, 255, 0.92);
    --glass-border: rgba(41, 66, 94, 0.12);
    --text-main: #102139;
    --text-dim: #38516e;
    --nav-height: 80px;
}

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

html, body {
    width: 100%;
    overflow-x: hidden; /* Bloqueia qualquer desvio lateral */
    position: relative;
}

body {
    background: linear-gradient(180deg, #f7fbff 0%, #e8eff7 45%, #f5f8fc 100%);
    color: var(--text-main);
    line-height: 1.65;
}

/* BACKGROUNDS */
.bg-engine {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    background: radial-gradient(circle at 15% 15%, rgba(61, 196, 255, 0.10) 0%, transparent 30%),
                radial-gradient(circle at 80% 15%, rgba(124, 112, 255, 0.08) 0%, transparent 28%),
                var(--surface);
}

.grid-blueprint {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    background-image: linear-gradient(rgba(16, 39, 72, 0.04) 1px, transparent 1px),
                      linear-gradient(90deg, rgba(16, 39, 72, 0.04) 1px, transparent 1px);
    background-size: 120px 120px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 40px;
    width: 100%;
}

/* NAVIGATION */
nav {
    height: var(--nav-height);
    display: flex;
    align-items: center;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(16, 39, 72, 0.10);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.nav-logo {
    height: 60px;
    width: auto;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a {
    color: var(--text-main);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: 0.3s;
}

.nav-links a:hover { color: var(--neon-blue); }

.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.8rem;
    color: var(--text-main);
    cursor: pointer;
    padding: 10px;
}

/* HERO */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: var(--nav-height);
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.2fr 0.8fr;
    gap: 60px;
    align-items: center;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5.5rem);
    line-height: 1.1;
    font-weight: 900;
    margin-bottom: 30px;
    letter-spacing: -2px;
}

.gradient-text {
    background: linear-gradient(135deg, #102139 0%, #3dc4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.neon-text { color: var(--neon-blue); }

/* SECTIONS */
section { padding: 120px 0; scroll-margin-top: 100px; }

.section-title {
    font-size: clamp(2rem, 4vw, 3.5rem);
    margin-bottom: 50px;
    text-align: center;
    width: 100%;
}

.glass-card {
    background: rgba(255, 255, 255, 0.92);
    border: 1px solid rgba(16, 39, 72, 0.08);
    backdrop-filter: blur(20px);
    border-radius: 24px;
    padding: 60px;
    box-shadow: 0 20px 45px rgba(16, 39, 72, 0.08);
    width: 100%;
}

/* DATA VISUALS */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
    margin-top: 40px;
}

.data-node {
    padding: 30px;
    background: white;
    border-radius: 16px;
    border: 1px solid rgba(16, 39, 72, 0.08);
    transition: 0.3s;
}

.data-node:hover { transform: translateY(-5px); border-color: var(--neon-blue); }

.data-node i { font-size: 2rem; color: var(--neon-blue); margin-bottom: 20px; display: block; }

.spec-list { list-style: none; margin-top: 30px; }
.spec-list li {
    padding: 12px 0;
    border-bottom: 1px solid rgba(16, 39, 72, 0.10);
    display: flex;
    justify-content: space-between;
}
.spec-list span { color: var(--neon-blue); font-weight: 700; }

/* IMAGES & VIDEO */
.asset-frame img {
    width: 100%;
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(16, 39, 72, 0.15);
}

.hero-video-frame {
    width: 100%;
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0,0,0,0.15);
}

.hero-video { width: 100%; display: block; }

/* FOOTER */
footer {
    padding: 80px 0 40px;
    background: white;
    border-top: 1px solid rgba(16, 39, 72, 0.08);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 50px;
}

/* WHATSAPP */
.whatsapp-float {
    position: fixed;
    bottom: 30px; right: 30px;
    width: 60px; height: 60px;
    background: #25D366;
    border-radius: 50%;
    display: flex;
    align-items: center; justify-content: center;
    z-index: 999;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}

.whatsapp-icon-img { width: 34px; height: 34px; }

/* RESPONSIVE UTILITIES */
.grid-stack-mobile {
    display: grid;
    gap: 40px;
}

@media (min-width: 901px) {
    .grid-stack-mobile { grid-template-columns: 1fr 1fr; }
}

.tracking-grid-bottom {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-top: 40px;
}

/* MOBILE OPTIMIZATION (BREAKPOINT AT 900PX) */
@media (max-width: 900px) {
    :root { --nav-height: 70px; }

    /* Força o corpo a não rolar quando o menu estiver aberto */
    body.menu-open { overflow: hidden; }

    .container {
        padding: 0 15px;
        width: 100%;
    }

    /* Cabeçalho Fixo e Limpo */
    nav {
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: 70px !important;
        background: #ffffff !important;
        z-index: 9999 !important;
        display: flex !important;
        align-items: center !important;
        box-shadow: 0 2px 10px rgba(0,0,0,0.1) !important;
    }

    .nav-content {
        display: flex !important;
        justify-content: center !important; /* Logo no centro */
        align-items: center !important;
        width: 100% !important;
        height: 100% !important;
        position: relative !important;
    }

    .nav-logo {
        height: 45px !important;
        width: auto !important;
        filter: none !important; /* Garante que o logo apareça normal */
    }

    .menu-toggle {
        display: block !important;
        position: absolute !important;
        right: 15px !important;
        top: 50% !important;
        transform: translateY(-50%) !important;
        background: none !important;
        border: none !important;
        color: #102139 !important;
        font-size: 1.8rem !important;
        z-index: 10001 !important;
    }

    /* Menu que cobre a tela inteira (Overlay) */
    .nav-links {
        display: none !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 100% !important;
        height: 100vh !important;
        background: rgba(255, 255, 255, 0.98) !important;
        backdrop-filter: blur(10px);
        z-index: 10000 !important;
        flex-direction: column !important;
        justify-content: center !important;
        align-items: center !important;
        gap: 30px !important;
    }

    .nav-links.active {
        display: flex !important;
    }

    .nav-links a {
        font-size: 1.5rem !important;
        font-weight: 800 !important;
        color: #102139 !important;
        text-transform: uppercase;
        letter-spacing: 1px;
        text-decoration: none;
    }

    /* Hero Centralizada */
    .hero {
        padding-top: calc(var(--nav-height) + 30px);
        text-align: center;
        min-height: auto;
        padding-bottom: 40px;
    }

    .hero-grid {
        display: flex;
        flex-direction: column;
        align-items: center;
        gap: 25px;
    }

    h1 {
        font-size: 2.1rem;
        letter-spacing: -1px;
    }

    .hero-description {
        font-size: 1rem !important;
        max-width: 100%;
        margin: 0 auto 20px;
    }

    /* Seções e Cards Centralizados */
    .section-title {
        font-size: 1.8rem;
        padding: 0 10px;
        margin-bottom: 25px;
    }

    .glass-card {
        padding: 25px 15px;
        width: 100% !important;
        border-radius: 16px;
        box-shadow: 0 10px 30px rgba(16, 39, 72, 0.06);
    }

    /* Data Grids em Coluna Única */
    .data-grid, .tracking-grid-bottom {
        grid-template-columns: 1fr !important;
        gap: 15px;
    }

    .data-node {
        padding: 20px;
        width: 100%;
        text-align: center;
    }

    .data-node h3, .data-node h4 {
        font-size: 1.3rem;
    }

    section { padding: 50px 0; }

    .footer-grid { grid-template-columns: 1fr; text-align: center; gap: 30px; }
    .footer-logo { margin: 0 auto; height: 70px; }
}

@media (max-width: 400px) {
    h1 { font-size: 1.9rem; }
    .section-title { font-size: 1.6rem; }
}