.cta-register {
    padding: 80px 20px;
    display: flex;
    justify-content: center;
    background: linear-gradient(135deg, #0f0f0f, #1a1a1a);
    position: relative;
    overflow: hidden;
}

/* brilho animado de fundo */
.cta-register::before {
    content: "";
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.08), transparent 60%);
    top: -200px;
    left: -200px;
    animation: floatGlow 8s ease-in-out infinite alternate;
}

@keyframes floatGlow {
    from { transform: translate(0, 0) scale(1); }
    to   { transform: translate(80px, 60px) scale(1.2); }
}

.cta-box {
    max-width: 850px;
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(14px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 22px;
    padding: 50px;
    text-align: center;
    color: #fff;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    position: relative;
    z-index: 2;
}

/* TAG */
.cta-box .section-tag {
    display: inline-block;
    font-size: 12px;
    letter-spacing: 2px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255,255,255,0.08);
    margin-bottom: 15px;
    text-transform: uppercase;
}

/* TITULO */
.cta-box h2 {
    font-size: 32px;
    margin-bottom: 12px;
}

/* SUBTITULO */
.cta-box p {
    font-size: 16px;
    opacity: 0.8;
    margin-bottom: 25px;
}

/* BOTÃO */
.cta-box .btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-decoration: none;
}

/* BOTÃO PRINCIPAL */
.cta-box .btn-primary {
    background: linear-gradient(135deg, #ffb400, #ff6a00);
    color: #000;
    box-shadow: 0 10px 30px rgba(255, 140, 0, 0.3);
}

.cta-box .btn-primary:hover {
    transform: translateY(-3px) scale(1.03);
    box-shadow: 0 15px 40px rgba(255, 140, 0, 0.5);
}

/* efeito de luz passando */
.cta-box::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent, rgba(255,255,255,0.08), transparent);
    transform: translateX(-100%);
    animation: shine 6s infinite;
}

@keyframes shine {
    0% { transform: translateX(-100%); }
    40% { transform: translateX(100%); }
    100% { transform: translateX(100%); }
}