*{box-sizing:border-box}

body{
margin:0;
font-family:'Segoe UI',sans-serif;
background:linear-gradient(to bottom,#fff,#f2f2f2);
color:#2d2d2d;
}

.container{
max-width:1100px;
margin:auto;
padding:40px 20px;
}

/* HEADER */
.header{text-align:center;margin-bottom:40px}
.header h1{font-size:2.4rem;color:#1d3557}

.timer{
display:flex;
justify-content:center;
gap:15px;
margin-top:20px;
}

.time-box{
background:#1d3557;
color:#fff;
padding:14px 18px;
border-radius:12px;
min-width:85px;
}

.time-box span{
display:block;
font-size:1.6rem;
font-weight:bold;
}

/* PRODUCT */
.product{
display:grid;
grid-template-columns:1fr 1fr;
gap:40px;
align-items:center;
margin:50px 0;
}

.product img{
width:100%;
max-width:380px;
transform:rotate(-8deg);
box-shadow:0 25px 60px rgba(0,0,0,.35);
border-radius:8px;
}

.price-box{
background:#fff;
padding:30px;
border-radius:18px;
box-shadow:0 15px 40px rgba(0,0,0,.1);
}

.old{text-decoration:line-through;color:#888}

.new{
color:#e63946;
font-size:1.4rem;
font-weight:bold;
}

.cta a{
display:block;
text-align:center;
background:#2a9d8f;
color:#fff;
padding:16px;
border-radius:50px;
text-decoration:none;
font-weight:bold;
font-size:1.1rem;
transition:.3s;
}

.cta a:hover{
background:#21867a;
transform:scale(1.03);
}

/* VIDEO + TEXT */
.main{
display:grid;
grid-template-columns:1fr 1fr;
gap:40px;
align-items:center;
}

.video-box{
display:flex;
justify-content:center;
align-items:center;
}

.ebook-video{
width:320px;
height:370px;
object-fit:cover;
border:none;
border-radius:18px;
box-shadow:0 18px 45px rgba(0,0,0,.25);
background:#000;
}

.text{
display:flex;
flex-direction:column;
justify-content:flex-start;
}

.text h2{
font-size:1.8rem;
color:#1d3557;
}

/* FOOTER */
.footer{
margin-top:60px;
padding:25px;
background:#1d3557;
color:#fff;
text-align:center;
border-radius:20px 20px 0 0;
}

.footer a{
color:#a8dadc;
text-decoration:none;
font-weight:bold;
}

/* MOBILE */
@media(max-width:768px){

.product,
.main{
grid-template-columns:1fr;
text-align:center;
}

.product img{
transform:none;
margin:auto;
}

.ebook-video{
width:100%;
max-width:320px;
height:520px;
}

}