body {
    margin:0;
    font-family:'Inter', sans-serif;
    background:#f9fafb;
    color:#111827;
}

.nav {
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 60px;
    background:#ffffff;
}

.logo {
    font-weight:700;
    font-size:20px;
}

.nav a {
    text-decoration:none;
    background:#1da1f2;
    color:#fff;
    padding:10px 18px;
    border-radius:8px;
    font-size:14px;
}

.nav a:hover {
    background:#0d8ddb;
}

.hero {
    padding:120px 20px;
    text-align:center;
    background:linear-gradient(135deg,#0ea5e9,#6366f1);
    color:#fff;
}

.hero h1 {
    font-size:48px;
    margin-bottom:20px;
}

.hero p {
    max-width:650px;
    margin:0 auto 40px;
    opacity:0.9;
}

.hero a {
    background:#fff;
    color:#111827;
    padding:14px 28px;
    border-radius:10px;
    text-decoration:none;
    font-weight:600;
}

.section {
    padding:100px 20px;
    text-align:center;
}

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

.cards {
    margin-top:60px;
    display:flex;
    justify-content:center;
    gap:30px;
    flex-wrap:wrap;
}

.card {
    background:#fff;
    width:280px;
    padding:35px 25px;
    border-radius:16px;
    box-shadow:0 10px 40px rgba(0,0,0,0.05);
    text-decoration:none;
    color:#111827;
    transition:0.3s;
}

.card:hover {
    transform:translateY(-8px);
}

.card-icon {
    font-size:40px;
    margin-bottom:15px;
}

.card h3 {
    margin-bottom:10px;
}

.footer {
    padding:60px;
    text-align:center;
    color:#6b7280;
    font-size:14px;
}

.instance-form {
    margin: 0 auto;
    max-width: 760px;
    display: flex;
    gap: 12px;
    justify-content: center;
    flex-wrap: wrap;
}

.instance-form input {
    width: min(100%, 460px);
    padding: 14px 16px;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    outline: none;
}

.instance-form button {
    background: #fff;
    color: #111827;
    padding: 14px 28px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: 600;
    border: none;
    cursor: pointer;
}