body{
font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Arial;
margin:0;
line-height:1.7;
color:#1f2937;
background:#f5f7fa;
}

/* CONTAINER */

.container{
max-width:1100px;
margin:auto;
padding:40px 20px;
width:100%;
box-sizing:border-box;
}

/* HERO */

.hero{
background:#0f172a;
color:white;
padding:60px 0;
}

.hero-grid{
display:grid;
grid-template-columns:1fr 1fr;
gap:40px;
align-items:center;
}

.hero-image{
display:flex;
justify-content:center;
}

.hero-image img{
max-width:280px;
width:100%;
height:auto;
display:block;
}

.hero-text{
max-width:520px;
}

/* BOTÕES */

.btn{
display:inline-block;
background:#16a34a;
color:white;
padding:14px 26px;
border-radius:8px;
font-weight:600;
text-decoration:none;
box-shadow:0 4px 10px rgba(0,0,0,0.15);
transition:all .2s ease;
margin-top:20px;
}

.btn:hover{
background:#15803d;
transform:translateY(-2px);
}

.btn.big{
font-size:20px;
padding:20px 40px;
}

/* SEÇÕES */

.about{
background:white;
border-top:1px solid #e5e7eb;
border-bottom:1px solid #e5e7eb;
}

.benefits{
padding-top:10px;
}

/* GRIDS */

.grid-3{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:30px;
}

.grid-2{
display:grid;
grid-template-columns:1fr 1fr;
gap:40px;
}

/* CARDS DESKTOP */

.card{
perspective:1000px;
height:210px;
position:relative;
}

.card-inner{
position:relative;
width:88%;
height:100%;
transition:transform .6s ease;
transform-style:preserve-3d;
border-radius:10px;
}

.card:hover .card-inner{
transform:rotateY(180deg);
}

.card-front,
.card-back{
position:absolute;
top:0;
width:88%;
height:100%;
padding:25px;
border-radius:10px;
background:white;
box-shadow:0 6px 15px rgba(0,0,0,0.08);
display:flex;
flex-direction:column;
justify-content:center;
backface-visibility:hidden;
}

.card-front{
z-index:2;
}

.card-back{
transform:rotateY(180deg);
}

.card h3{
margin-top:0;
margin-bottom:10px;
font-size:18px;
}

.card p{
font-size:15px;
color:#4b5563;
}

/* FAQ */

.faq button{
width:100%;
padding:18px;
font-size:16px;
border:none;
background:white;
border-bottom:1px solid #e5e7eb;
text-align:left;
cursor:pointer;
font-weight:500;
transition:background .2s;
}

.faq button:hover{
background:#f3f4f6;
}

.faq .content{
display:none;
padding:18px;
background:#f9fafb;
}

/* AUTHOR */

.author-grid{
display:grid;
grid-template-columns:200px 1fr;
gap:30px;
align-items:center;
}

.author img{
width:200px;
border-radius:10px;
}

/* FOOTER */

footer{
background:#111;
color:white;
text-align:center;
padding:20px;
}

footer a{
color:#22c55e;
}

/* RESPONSIVO */

@media(max-width:800px){

.hero{
text-align:center;
padding:40px 0;
}

.hero-grid{
grid-template-columns:1fr;
gap:20px;
}

.hero-image img{
margin:0 auto 20px auto;
max-width:220px;
}

.hero-text{
margin:auto;
}

.grid-3,
.grid-2,
.author-grid{
grid-template-columns:1fr;
}

/* DESATIVA FLIP NO MOBILE */

.card{
height:auto;
perspective:none;
}

.card-inner{
transform:none !important;
display:block;
}

.card-front,
.card-back{
position:relative;
transform:none;
height:auto;
box-shadow:none;
padding:20px;
}

.card-back{
border-top:1px solid #e5e7eb;
margin-top:10px;
padding-top:10px;
}


.container.author-grid {
    text-align: center;
    display: block;
}


section.cta {
    text-align: center;
}

}