@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

body{
font-family:'Inter',sans-serif;
background:#F7F8FA;
color:#112033;
line-height:1.7;
}

img{
display:block;
width:100%;
height:auto;
}

a{
text-decoration:none;
color:inherit;
}

.container{
max-width:1180px;
margin:auto;
padding:0 24px;
}

/* HEADER */

.site-header{
background:rgba(255,255,255,.94);
border-bottom:1px solid #E7EDF5;
position:sticky;
top:0;
z-index:100;
backdrop-filter:blur(14px);
}

.nav{
min-height:74px;
display:flex;
align-items:center;
justify-content:space-between;
gap:24px;
}

.brand{
display:flex;
align-items:center;
gap:12px;
font-weight:800;
font-size:19px;
}

.brand-icon{
width:40px;
height:40px;
border-radius:14px;
background:#2448C6;
color:#fff;
display:flex;
align-items:center;
justify-content:center;
font-size:12px;
font-weight:800;
}

.nav-links{
display:flex;
align-items:center;
gap:24px;
font-weight:700;
font-size:14px;
color:#55657C;
}

.nav-links a:hover,
.nav-cta{
color:#2448C6;
}

/* HERO */

.hero{
padding:32px 0 76px;
}

.hero-image-wrap{
max-width:900px;
margin:0 auto;
border-radius:30px;
overflow:hidden;
box-shadow:0 24px 58px rgba(17,32,51,.09);
}

.hero-image{
height:360px;
object-fit:cover;
object-position:center;
}

.hero-copy{
max-width:830px;
margin:48px auto 0;
text-align:center;
}

.eyebrow{
font-size:13px;
font-weight:800;
text-transform:uppercase;
letter-spacing:.09em;
color:#2448C6;
margin-bottom:12px;
}

.hero h1{
font-size:58px;
line-height:1.04;
letter-spacing:-.055em;
margin-bottom:22px;
}

.hero-copy p{
font-size:19px;
color:#596983;
max-width:680px;
margin:0 auto;
}

.hero-buttons{
display:flex;
justify-content:center;
gap:16px;
margin-top:32px;
flex-wrap:wrap;
}

/* BUTTONS */

.btn-primary,
.btn-secondary{
display:inline-flex;
align-items:center;
justify-content:center;
padding:15px 26px;
border-radius:15px;
font-weight:800;
font-size:14px;
transition:.2s ease;
}

.btn-primary{
background:#2448C6;
color:#fff;
box-shadow:0 12px 28px rgba(36,72,198,.2);
}

.btn-primary:hover,
.btn-secondary:hover{
transform:translateY(-2px);
}

.btn-secondary{
background:#fff;
border:1px solid #DCE4EF;
color:#112033;
}

/* SECTIONS */

.section{
padding:92px 0;
}

.soft{
background:#fff;
}

.section-heading{
text-align:center;
max-width:730px;
margin:0 auto 46px;
}

.section-heading h2{
font-size:40px;
line-height:1.1;
margin-bottom:12px;
letter-spacing:-.04em;
}

.section-heading p{
font-size:17px;
color:#5B6B82;
}

/* CHALLENGES */

.challenge-grid{
display:grid;
grid-template-columns:repeat(4,1fr);
gap:24px;
}

.challenge-card{
background:#fff;
border:1px solid #E4EAF3;
border-radius:26px;
padding:30px;
transition:.2s ease;
box-shadow:0 10px 30px rgba(17,32,51,.035);
}

.challenge-card:hover{
transform:translateY(-4px);
box-shadow:0 18px 42px rgba(17,32,51,.075);
}

.challenge-card span{
font-size:13px;
font-weight:800;
color:#2448C6;
}

.challenge-card h3{
font-size:23px;
line-height:1.25;
margin:14px 0;
letter-spacing:-.03em;
}

.challenge-card p{
color:#607089;
font-size:15px;
}

/* GUIDES */

.guide-grid{
display:grid;
grid-template-columns:repeat(3,1fr);
gap:24px;
}

.guide-card{
background:#fff;
padding:32px;
border-radius:26px;
border:1px solid #E4EAF3;
box-shadow:0 10px 30px rgba(17,32,51,.025);
}

.guide-category{
font-size:12px;
font-weight:800;
color:#2448C6;
margin-bottom:12px;
}

.guide-card h3{
font-size:24px;
line-height:1.22;
margin-bottom:14px;
letter-spacing:-.035em;
}

.guide-card p{
color:#607089;
margin-bottom:18px;
font-size:15px;
}

.guide-card a{
color:#2448C6;
font-weight:800;
}

/* IMAGE SECTIONS */

.split{
display:grid;
grid-template-columns:1fr 1fr;
gap:64px;
align-items:center;
}

.split-image img{
border-radius:28px;
box-shadow:0 24px 58px rgba(17,32,51,.08);
}

.split-copy h2{
font-size:39px;
line-height:1.12;
margin-bottom:18px;
letter-spacing:-.045em;
}

.split-copy p{
font-size:17px;
color:#5A6A81;
margin-bottom:20px;
}

.split-copy ul{
padding-left:20px;
margin-bottom:28px;
}

.split-copy li{
margin-bottom:9px;
color:#5A6A81;
}

.kit-section{
background:#fff;
}

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

.product-image img{
max-height:620px;
width:auto;
background:#fff;
padding:10px;
}

/* FOOTER */

.footer{
padding:38px 0;
background:#112033;
color:#fff;
}

.footer-inner{
display:flex;
justify-content:space-between;
align-items:center;
gap:24px;
font-size:14px;
}

.footer a{
color:#fff;
opacity:.8;
}

/* MOBILE */

@media(max-width:1000px){

.hero-image{
height:300px;
}

.challenge-grid{
grid-template-columns:1fr 1fr;
}

.guide-grid{
grid-template-columns:1fr;
}

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

.hero h1{
font-size:46px;
}

.section{
padding:76px 0;
}

.product-image img{
width:100%;
max-height:none;
}

}

@media(max-width:700px){

.nav{
flex-direction:column;
padding:18px 0;
}

.nav-links{
flex-wrap:wrap;
justify-content:center;
gap:14px;
font-size:13px;
}

.hero{
padding:24px 0 64px;
}

.hero-image{
height:220px;
}

.challenge-grid{
grid-template-columns:1fr;
}

.hero h1{
font-size:37px;
}

.hero-copy{
margin-top:36px;
}

.hero-copy p{
font-size:17px;
}

.section-heading h2{
font-size:32px;
}

.split-copy h2{
font-size:32px;
}

.footer-inner{
flex-direction:column;
text-align:center;
}

}