:root{
--primary:#00d4ff;
--secondary:#4f46e5;
--dark:#06121f;
--card:rgba(255,255,255,0.08);
--border:rgba(255,255,255,0.15);
--white:#ffffff;
}

*{
margin:0;
padding:0;
box-sizing:border-box;
font-family:'Poppins',sans-serif;
}

body{
background:
radial-gradient(circle at top left,#0c294f,#06121f 60%);
color:white;
overflow-x:hidden;
}

/* HERO */

.hero{
padding:120px 10%;
text-align:center;
}

.hero h1{
font-size:4rem;
font-weight:700;
background:linear-gradient(90deg,#fff,#00d4ff);
-webkit-background-clip:text;
-webkit-text-fill-color:transparent;
margin-bottom:20px;
}

.hero p{
max-width:900px;
margin:auto;
font-size:1.1rem;
opacity:.85;
line-height:1.8;
}

/* FILTERS */

.filters{
display:flex;
flex-wrap:wrap;
justify-content:center;
gap:15px;
padding:20px;
margin-bottom:50px;
}

.filter-btn{
background:rgba(255,255,255,.08);
border:1px solid rgba(255,255,255,.15);
padding:12px 20px;
border-radius:30px;
cursor:pointer;
transition:.3s;
}

.filter-btn:hover{
background:rgba(0,212,255,.2);
border-color:var(--primary);
}

/* CASE CARD */

.case-study{
width:90%;
max-width:1400px;
margin:auto;
background:var(--card);
backdrop-filter:blur(20px);
border:1px solid var(--border);
border-radius:30px;
padding:40px;
display:grid;
grid-template-columns:1fr 1fr;
gap:40px;
margin-bottom:80px;
box-shadow:
0 10px 50px rgba(0,0,0,.35);
}

.badge{
display:inline-block;
padding:8px 16px;
border-radius:20px;
background:rgba(0,212,255,.15);
border:1px solid rgba(0,212,255,.4);
color:#7cefff;
margin-bottom:20px;
}

.case-study h2{
font-size:2.2rem;
margin-bottom:10px;
}

.case-study p{
line-height:1.8;
opacity:.9;
}

.section-title{
margin-top:25px;
margin-bottom:10px;
color:var(--primary);
font-weight:600;
}

ul{
padding-left:20px;
}

li{
margin-bottom:10px;
}

/* VIDEO */

.video-container{
position:relative;
padding-bottom:56.25%;
height:0;
overflow:hidden;
border-radius:20px;
box-shadow:0 0 30px rgba(0,212,255,.2);
}

.video-container iframe{
position:absolute;
top:0;
left:0;
width:100%;
height:100%;
border:none;
}

/* KPI */

.kpi-container{
margin-top:70px;
display:grid;
grid-template-columns:repeat(4,1fr);
gap:25px;
padding:0 10%;
}

.kpi{
background:var(--card);
border:1px solid var(--border);
border-radius:25px;
padding:30px;
text-align:center;
backdrop-filter:blur(15px);
}

.kpi h3{
font-size:2rem;
color:var(--primary);
margin-bottom:10px;
}

/* RESOURCES */

.resources{
padding:80px 10%;
}

.resources h2{
text-align:center;
font-size:2.5rem;
margin-bottom:50px;
}

.resource-grid{
display:grid;
grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
gap:30px;
}

.resource-card{
background:var(--card);
backdrop-filter:blur(20px);
border:1px solid var(--border);
padding:30px;
border-radius:25px;
transition:.3s;
}

.resource-card:hover{
transform:translateY(-10px);
border-color:var(--primary);
}

.resource-card h3{
margin-bottom:15px;
}

.resource-card p{
opacity:.75;
margin-bottom:20px;
}

.download-btn{
display:inline-block;
padding:12px 22px;
border-radius:15px;
background:linear-gradient(
135deg,
var(--primary),
var(--secondary)
);
color:white;
text-decoration:none;
font-weight:600;
}

/* TESTIMONIAL */

.testimonial{
padding:80px 10%;
}

.testimonial-card{
max-width:1000px;
margin:auto;
background:var(--card);
border:1px solid var(--border);
padding:50px;
border-radius:30px;
text-align:center;
backdrop-filter:blur(20px);
}

.testimonial-card p{
font-size:1.2rem;
line-height:2;
font-style:italic;
}

.testimonial-card h4{
margin-top:20px;
color:var(--primary);
}

/* FOOTER */

.footer{
text-align:center;
padding:50px;
opacity:.7;
}

/* MOBILE */

@media(max-width:900px){

.hero h1{
font-size:2.5rem;
}

.case-study{
grid-template-columns:1fr;
}

.kpi-container{
grid-template-columns:1fr 1fr;
}

}

@media(max-width:600px){

.kpi-container{
grid-template-columns:1fr;
}

}