/* Reset básico */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Montserrat', sans-serif;
    background-color: #0a0a0a; /* Fundo bem escuro */
    color: #ffffff;
    overflow: hidden; /* Impede rolagem causada pelo canvas */
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Canvas de fundo */
#sparkCanvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

/* Container do conteúdo */
.content-wrapper {
    position: relative;
    z-index: 1;
    text-align: center;
    padding: 0 20px;
    max-width: 800px;
}

/* Animação de flutuação para a logo */
@keyframes float {
    0% { transform: translateY(0px); }
    50% { transform: translateY(-10px); }
    100% { transform: translateY(0px); }
}

/* Logo */
.logo {
    max-width: 380px;
    margin-bottom: 40px;
    /* Glow cinza bem claro */
    filter: drop-shadow(0px 15px 25px rgba(220, 220, 220, 0.2));
    /* Aplica o movimento de flutuação contínuo */
    animation: float 6s ease-in-out infinite;
}

/* Textos */
.headline {
    font-size: 3.5rem;
    font-weight: 900;
    line-height: 1.1;
    margin-bottom: 20px;
    background: linear-gradient(90deg, #ffffff, #f4b41a);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subheadline {
    font-size: 1.2rem;
    font-weight: 400;
    color: #cccccc;
    margin-bottom: 40px;
    line-height: 1.6;
}

/* Botão WhatsApp */
.cta-button {
    display: inline-block;
    background-color: #f4b41a; /* Amarelo da logo */
    color: #121212;
    font-size: 1.1rem;
    font-weight: 700;
    text-decoration: none;
    padding: 18px 40px;
    border-radius: 50px;
    transition: all 0.3s ease;
    box-shadow: 0 0 20px rgba(244, 180, 26, 0.4);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.cta-button:hover {
    background-color: #ffc933;
    transform: translateY(-3px);
    box-shadow: 0 0 30px rgba(244, 180, 26, 0.7);
}

/* Responsividade para celulares */
@media (max-width: 768px) {
    .headline {
        font-size: 2.2rem;
    }
    .subheadline {
        font-size: 1rem;
    }
    .logo {
        max-width: 280px;
    }
}