/* Reset básico */
* { margin: 0; padding: 0; box-sizing: border-box; font-family: Arial, sans-serif; }
body { background-color: #fff; color: #333; }

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 40px;
    background-color: #00a651;
    color: white;
    box-shadow: 0 4px 8px rgba(0,0,0,0.2);
}
header .logo img { height: 60px; }
nav a { color: white; text-decoration: none; margin-left: 20px; font-weight: bold; transition: 0.3s; }
nav a:hover { opacity: 0.8; }
.btn-header {
    background: linear-gradient(90deg, #00c853, #00a651);
    color: white;
    padding: 12px 25px;
    border-radius: 30px;
    font-weight: bold;
    transition: 0.3s;
}
.btn-header:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.3); }

/* Banner */
.banner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    background-color: #f7f7f7;
    padding: 100px 20px;
}
.banner-logo { max-width: 180px; margin-bottom: 25px; }
.banner h1 { font-size: 2.8em; color: #00a651; margin-bottom: 15px; }
.banner p { font-size: 1.2em; margin-bottom: 30px; }
.btn-group { display: flex; flex-wrap: wrap; justify-content: center; }
.btn-download {
    display: inline-block;
    margin: 10px;
    padding: 14px 28px;
    background: linear-gradient(90deg, #00c853, #00a651);
    color: white;
    text-decoration: none;
    border-radius: 30px;
    font-weight: bold;
    transition: 0.3s;
    box-shadow: 0 6px 12px rgba(0,0,0,0.25);
}
.btn-download:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(0,0,0,0.3); }

/* Pop-up / Incentivo */
.popup {
    background: linear-gradient(90deg, #00a651, #00c853);
    color: white;
    padding: 50px;
    text-align: center;
    margin: 50px auto;
    max-width: 420px;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
    animation: floatPopup 2s ease-in-out infinite alternate;
}
@keyframes floatPopup { from { transform: translateY(0); } to { transform: translateY(-10px); } }
.popup button {
    margin-top: 25px;
    padding: 12px 28px;
    border: none;
    border-radius: 30px;
    background-color: white;
    color: #00a651;
    font-weight: bold;
    cursor: pointer;
    transition: 0.3s;
}
.popup button:hover { transform: translateY(-3px); box-shadow: 0 6px 12px rgba(0,0,0,0.3); }

/* Botão WhatsApp */
.btn-whatsapp {
    position: fixed;
    bottom: 25px;
    right: 25px;
    background-color: #25D366;
    color: white;
    padding: 18px 22px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: bold;
    display: flex;
    align-items: center;
    box-shadow: 0 6px 15px rgba(0,0,0,0.3);
    transition: 0.3s;
}
.btn-whatsapp:hover { transform: translateY(-3px); box-shadow: 0 10px 20px rgba(0,0,0,0.35); }
.btn-whatsapp img { width: 28px; margin-right: 12px; }

/* Footer */
footer { text-align: center; padding: 25px; background-color: #eee; margin-top: 50px; font-size: 0.9em; color: #555; }

/* Responsivo */
@media(max-width:768px){
    header { flex-direction: column; align-items: flex-start; }
    nav { margin-top: 10px; }
    .banner h1 { font-size: 2.2em; }
}