@import url("nc_assets/css/style.css");
3) Paste this NEW “Netlify-style” CSS

Paste everything below into styles.css, then Save Changes:

/* ENVOL clean website styles (drop-in replacement) */

:root{
  --bg:#f6f7fb;
  --card:#ffffff;
  --text:#0f172a;
  --muted:#64748b;
  --border:rgba(15,23,42,.12);
  --shadow:0 10px 30px rgba(2,6,23,.08);
  --brand:#0b1220;
  --brand2:#111827;
  --radius:16px;
}

*{ box-sizing:border-box; margin:0; padding:0; }
html,body{ height:100%; }
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 600px at 20% -10%, #eaf0ff 0%, transparent 60%),
              radial-gradient(900px 500px at 90% 10%, #eafbf3 0%, transparent 55%),
              var(--bg);
  line-height:1.55;
}

img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ padding-left:1.1rem; }

/* Layout */
.container{ width:min(1100px, 92%); margin:0 auto; }
.section{ padding:56px 0; }

/* Typography helpers */
.h1{ font-size: clamp(28px, 3.6vw, 40px); letter-spacing:-.02em; }
.h2{ font-size: 20px; letter-spacing:-.01em; }
.muted{ color:var(--muted); }
p{ margin: 10px 0; }
li{ margin: 6px 0; }

/* Nav */
.nav{
  position: sticky;
  top:0;
  z-index:10;
  backdrop-filter: blur(10px);
  background: rgba(246,247,251,.75);
  border-bottom: 1px solid var(--border);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding: 14px 0;
}
.brand img{
  height: 44px;
  width:auto;
}
.menu{
  display:flex;
  gap: 18px;
  flex-wrap: wrap;
}
.menu a{
  font-weight:600;
  color:#1f2937;
  opacity:.9;
}
.menu a:hover{ opacity:1; text-decoration: underline; text-underline-offset: 4px; }

/* Cards / grid */
.split{
  display:grid;
  grid-template-columns: repeat(2, minmax(0,1fr));
  gap: 18px;
}
.card{
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}
.card ul{ margin: 10px 0 14px; }
.card .h2{ margin-bottom: 8px; }

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  cursor:pointer;
  transition: transform .06s ease, opacity .15s ease, background .15s ease;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{
  background: linear-gradient(180deg, var(--brand), var(--brand2));
  color:#fff;
  box-shadow: 0 10px 18px rgba(15,23,42,.18);
}
.btn-primary:hover{ opacity:.94; }

/* Product block inside Cassava card */
.product-mini{
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed rgba(15,23,42,.18);
  display:grid;
  grid-template-columns: 140px 1fr;
  gap: 14px;
  align-items:start;
}
.product-mini img{
  width:100%;
  border-radius: 14px;
  border: 1px solid rgba(15,23,42,.10);
  background:#fff;
}
.product-mini h3{
  margin: 0 0 6px 0;
  font-size: 18px;
}
.product-mini p{ margin: 0 0 8px 0; }

/* Footer */
.footer{
  border-top: 1px solid var(--border);
  background: rgba(255,255,255,.65);
  padding: 22px 0;
}
.footer .muted{ color: var(--muted); }

/* Responsive */
@media (max-width: 900px){
  .split{ grid-template-columns: 1fr; }
  .product-mini{ grid-template-columns: 1fr; }
  .brand img{ height: 40px; }
}