:root{
  --bg:#f4f8fc;
  --surface:#ffffff;
  --surface-soft:#f8fbff;
  --border:#dbe7f4;
  --text:#0f172a;
  --muted:#64748b;
  --primary:#2563eb;
  --primary-light:#06b6d4;
  --shadow:rgba(15,23,42,.08);
}

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

html{
    scroll-behavior:smooth;
}

body{
    font-family:Arial,Helvetica,sans-serif;
    background:linear-gradient(180deg,#eef5ff 0%,#f8fbff 100%);
    color:var(--text);
    line-height:1.75;
}

.container{
    width:min(960px,calc(100% - 32px));
    margin:auto;
}

header{
    padding:70px 0 40px;
    text-align:center;
}

.brand-badge{
    display:inline-block;
    padding:8px 18px;
    border-radius:50px;
    background:#dbeafe;
    color:var(--primary);
    font-size:13px;
    font-weight:bold;
    letter-spacing:2px;
}

h1{
    margin-top:18px;
    font-size:52px;
}

.tagline{
    margin-top:18px;
    color:var(--muted);
    max-width:720px;
    margin-left:auto;
    margin-right:auto;
}

.last-updated{
    margin-top:12px;
    color:var(--muted);
}

nav{
    display:flex;
    justify-content:center;
    gap:15px;
    flex-wrap:wrap;
    margin-top:30px;
}

.button{
    display:inline-block;
    padding:12px 22px;
    border-radius:12px;
    background:var(--primary);
    color:white;
    text-decoration:none;
    font-weight:bold;
    transition:.25s;
}

.button:hover{
    transform:translateY(-2px);
    background:#1d4ed8;
}

.secondary-button{
    background:white;
    color:var(--primary);
    border:1px solid var(--border);
}

.secondary-button:hover{
    background:#eff6ff;
}

main{
    margin-top:20px;
}

.card{
    background:var(--surface);
    border-radius:18px;
    padding:28px;
    margin-bottom:22px;
    border:1px solid var(--border);
    box-shadow:0 12px 35px var(--shadow);
}

.card h2{
    color:var(--primary);
    margin-bottom:14px;
}

.card p,
.card li{
    color:var(--muted);
}

ul{
    padding-left:22px;
}

li{
    margin-bottom:8px;
}

.hero-card{
    background:linear-gradient(135deg,#2563eb,#06b6d4);
    color:white;
}

.hero-card h2,
.hero-card p{
    color:white;
}

.features-grid{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:18px;
}

.feature-box{
    background:#f8fbff;
    border:1px solid var(--border);
    border-radius:16px;
    padding:20px;
}

.feature-box h3{
    color:var(--primary);
    margin-bottom:8px;
}

.contact-card{
    text-align:center;
    background:linear-gradient(135deg,#ffffff,#f2f8ff);
}

.contact-email{
    margin-top:18px;
    font-size:18px;
    font-weight:bold;
}

.contact-email a{
    color:var(--primary);
    text-decoration:none;
}

footer{
    text-align:center;
    padding:45px 0;
    color:var(--muted);
}

footer a{
    color:var(--primary);
    text-decoration:none;
}

@media(max-width:700px){

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

h1{
font-size:38px;
}

.container{
width:min(100% - 20px,960px);
}

.card{
padding:22px;
}

nav{
flex-direction:column;
}

.button{
width:100%;
}
}