/* RESET */

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

html{
scroll-behavior:smooth;
}

body{
font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
background:#f8fafc;
color:#0f172a;
line-height:1.6;
}

/* LAYOUT */

.container{
max-width:1100px;
margin:auto;
padding:0 24px;
}

.section{
padding:90px 0;
}

/* TYPOGRAPHY */

h1{
font-size:56px;
line-height:1.05;
letter-spacing:-1px;
margin-bottom:20px;
}

h2{
font-size:36px;
margin-bottom:20px;
letter-spacing:-0.5px;
}

h3{
font-size:22px;
margin-bottom:12px;
}

p{
font-size:18px;
color:#475569;
margin-bottom:16px;
}

/* HEADER */

.header{
background:white;
border-bottom:1px solid #e2e8f0;
position:sticky;
top:0;
z-index:100;
}

.nav{
display:flex;
align-items:center;
justify-content:space-between;
height:72px;
}

.logo{
font-weight:700;
font-size:18px;
letter-spacing:-0.5px;
}

.nav-links{
display:flex;
align-items:center;
gap:26px;
font-size:14px;
font-weight:500;
}

.nav-links a{
color:#475569;
text-decoration:none;
padding:8px 12px;
border-radius:8px;
transition:all 0.2s ease;
}

.nav-links a:hover{
background:#f1f5f9;
color:#0f172a;
}

.nav-links a:active{
background:#e2e8f0;
}

/* HERO */

.hero{
padding:120px 0 100px;
}

.hero p{
font-size:20px;
max-width:680px;
}

/* BUTTONS */

.button{
display:inline-flex;
align-items:center;
gap:10px;
padding:14px 22px;
border-radius:12px;
font-weight:600;
font-size:16px;
cursor:pointer;
text-decoration:none;
}

.button-primary{
background:#0f172a;
color:white;
}

.button-primary:hover{
background:#020617;
}

.button-secondary{
background:white;
border:1px solid #e2e8f0;
color:#0f172a;
}

.button-secondary:hover{
background:#f1f5f9;
}

/* GRID */

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

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

/* CARDS */

.card{
background:white;
border:1px solid #e2e8f0;
border-radius:18px;
padding:28px;
box-shadow:0 8px 30px rgba(0,0,0,0.05);
}

.card-soft{
background:#f8fafc;
border:1px solid #e2e8f0;
border-radius:18px;
padding:28px;
}

/* DEMO */

.demo-box{
background:white;
border:1px solid #e2e8f0;
border-radius:16px;
padding:22px;
font-size:15px;
color:#334155;
}

.demo-chat{
font-family:monospace;
font-size:14px;
line-height:1.6;
white-space:pre-line;
color:#1e293b;
}

.demo-arrow{
text-align:center;
font-size:28px;
margin:10px 0;
color:#64748b;
}

/* METRICS */

.metric{
margin-bottom:14px;
}

.metric-label{
font-size:14px;
color:#64748b;
margin-bottom:6px;
}

.metric-value{
font-weight:600;
margin-bottom:6px;
}

.metric-bar{
height:10px;
background:#e2e8f0;
border-radius:999px;
overflow:hidden;
}

.metric-fill{
height:100%;
background:#2563eb;
}

/* TAG */

.tag{
display:inline-block;
padding:6px 10px;
background:#dbeafe;
color:#1e40af;
border-radius:8px;
font-size:13px;
font-weight:600;
}

/* HOW IT WORKS */

.step{
display:flex;
gap:16px;
}

.step-number{
width:36px;
height:36px;
border-radius:10px;
background:#dbeafe;
color:#2563eb;
display:flex;
align-items:center;
justify-content:center;
font-weight:700;
}

/* FOOTER */

.footer{
border-top:1px solid #e2e8f0;
padding:40px 0;
font-size:14px;
color:#64748b;
margin-top:80px;
}

/* RESPONSIVE */

@media (max-width:900px){

h1{
font-size:40px;
}

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

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

.hero{
padding:80px 0;
}

.nav-links{
display:none;
}

}