/* =========================
🌑 BASE GLOBAL
========================= */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    background: radial-gradient(circle at top, #071018, #020407);
    color: #ffffff;
    font-family: "Segoe UI", Arial, sans-serif;
    overflow-x: hidden;
}

/* =========================
🌌 FUNDO ANIMADO
========================= */
.bg {
    position: fixed;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at center, rgba(0,255,156,0.08), transparent 70%);
    animation: pulse 6s ease-in-out infinite;
    z-index: -1;
}

@keyframes pulse {
    0% { opacity: 0.3; transform: scale(1); }
    50% { opacity: 0.8; transform: scale(1.1); }
    100% { opacity: 0.3; transform: scale(1); }
}

/* =========================
🚀 HEADER
========================= */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 60px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    width: 42px;
    filter: drop-shadow(0 0 8px rgba(0,255,156,0.6));
}

.logo span {
    font-weight: 700;
    font-size: 18px;
    letter-spacing: 1px;
}

/* =========================
🔥 BOTÃO
========================= */
.btn {
    background: linear-gradient(90deg, #00ff9c, #00d084);
    color: #000;
    padding: 10px 22px;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.25s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(0,255,156,0.7);
}

/* botão maior */
.btn.big {
    margin-top: 20px;
    padding: 14px 32px;
    font-size: 16px;
}

/* =========================
💣 HERO
========================= */
.hero {
    position: relative;
    overflow: hidden;
    padding: 120px 20px;
}

/* gráfico */
#bg-chart {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;

    opacity: 0.25;
    z-index: 0;
}

/* conteúdo acima */
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}

/* escurece fundo */
.hero::after {
    content: "";
    position: absolute;
    inset: 0;

    background: linear-gradient(
        to bottom,
        rgba(0,0,0,0.6),
        rgba(0,0,0,0.9)
    );

    z-index: 1;
}

/* =========================
⚡ NEON BOX (LOGO CENTRAL)
========================= */
.neon-box {
    margin: 70px auto;
    width: 280px;
    height: 280px;

    border-radius: 18px;
    border: 1px solid rgba(0,255,156,0.2);

    display: flex;
    align-items: center;
    justify-content: center;

    backdrop-filter: blur(6px);

    box-shadow:
        0 0 20px rgba(0,255,156,0.2),
        inset 0 0 20px rgba(0,255,156,0.15);

    animation: glow 2.5s infinite alternate;
}

@keyframes glow {
    from { box-shadow: 0 0 10px rgba(0,255,156,0.2); }
    to { box-shadow: 0 0 40px rgba(0,255,156,0.7); }
}

.neon-box img {
    width: 120px;
}

/* =========================
📚 CONTEÚDO (SEO)
========================= */
.content {
    max-width: 900px;
    margin: 100px auto;
    padding: 0 20px;
}

.content h2 {
    margin-top: 40px;
    margin-bottom: 10px;
    font-size: 24px;
    color: #00ff9c;
}

.content p {
    opacity: 0.8;
    line-height: 1.7;
    margin-bottom: 12px;
}

/* =========================
📊 FEATURES
========================= */
.features {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin: 80px auto;
    flex-wrap: wrap;
    max-width: 1100px;
}

.card {
    width: 260px;
    padding: 22px;
    border-radius: 14px;

    background: rgba(13,20,28,0.9);
    border: 1px solid rgba(0,255,156,0.15);

    backdrop-filter: blur(6px);

    transition: 0.25s ease;
}

.card:hover {
    transform: translateY(-4px);
    border-color: rgba(0,255,156,0.4);
    box-shadow: 0 10px 30px rgba(0,0,0,0.6);
}

.card h3 {
    color: #00ff9c;
    margin-bottom: 6px;
}

.card p {
    opacity: 0.7;
    font-size: 14px;
}

/* =========================
🚀 CTA FINAL
========================= */
.cta {
    text-align: center;
    margin: 120px 0;
    padding: 0 20px;
}

.cta h2 {
    font-size: 32px;
    margin-bottom: 10px;
}

.cta p {
    opacity: 0.75;
}

/* =========================
📱 RESPONSIVO
========================= */
@media (max-width: 768px) {

    .header {
        padding: 20px;
    }

    .hero h1 {
        font-size: 34px;
    }

    .hero p {
        font-size: 15px;
    }

    .neon-box {
        width: 200px;
        height: 200px;
    }

    .neon-box img {
        width: 90px;
    }

    .content {
        margin: 60px auto;
    }

    .features {
        gap: 15px;
    }

    .card {
        width: 90%;
    }
}



/* =========================
🚀 FOOTER FUTURISTA
========================= */
.footer {
    margin-top: 120px;
    padding: 40px 20px;

    background: linear-gradient(to top, #020407, #05080c);
    border-top: 1px solid rgba(0,255,156,0.15);

    text-align: center;
}

/* container */
.footer-content {
    max-width: 900px;
    margin: 0 auto;
}

/* logo */
.footer-brand {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;

    margin-bottom: 10px;
}

.footer-brand img {
    width: 32px;
    filter: drop-shadow(0 0 8px rgba(0,255,156,0.7));
}

.footer-brand span {
    font-weight: 700;
    letter-spacing: 1px;
}

/* texto */
.footer-text {
    opacity: 0.6;
    font-size: 14px;
    margin-bottom: 12px;
}

/* copyright */
.footer-copy {
    font-size: 12px;
    opacity: 0.5;
}

/* linha neon animada */
.footer::before {
    content: "";
    display: block;
    width: 120px;
    height: 2px;
    margin: 0 auto 20px auto;

    background: linear-gradient(90deg, transparent, #00ff9c, transparent);
    animation: neonLine 2s infinite;
}

@keyframes neonLine {
    0% { opacity: 0.3; }
    50% { opacity: 1; }
    100% { opacity: 0.3; }
}

/* =========================
🔥 GRÁFICO DE FUNDO
========================= */
#bg-chart {
    opacity: 0;
    transition: opacity 0.4s ease;
}