```css
/* ==========================================================
   DOMOGREEN - STYLE.CSS
   MODULO 1 - CORE
   ========================================================== */

/* RESET */

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

html{
    scroll-behavior:smooth;
}

body{

    font-family:'Poppins',sans-serif;

    color:#222;

    background:#ffffff;

    overflow-x:hidden;

    line-height:1.6;

}

img{

    max-width:100%;

    display:block;

}

a{

    text-decoration:none;

    color:inherit;

}

ul{

    list-style:none;

}

/* ==========================
      VARIABILI
========================== */

:root{

--green:#69BE28;
--green-dark:#4f9b18;

--black:#1f1f1f;

--gray:#6b7280;

--light:#f8fafb;

--white:#ffffff;

--shadow:0 15px 40px rgba(0,0,0,.08);

--radius:18px;

--transition:.35s ease;

}

/* ==========================
      CONTAINER
========================== */

.container{

width:min(1200px,92%);

margin:auto;

}

/* ==========================
      NAVBAR
========================== */

header{

position:fixed;

top:0;

left:0;

width:100%;

z-index:999;

}

.navbar{

display:flex;

justify-content:space-between;

align-items:center;

padding:18px 40px;

background:rgba(255,255,255,.78);

backdrop-filter:blur(18px);

-webkit-backdrop-filter:blur(18px);

border-bottom:1px solid rgba(255,255,255,.35);

transition:.4s;

}

.logo{

font-size:2rem;

font-weight:700;

letter-spacing:.5px;

}

.logo span{

color:#222;

}

.logo strong{

color:var(--green);

}

.navbar ul{

display:flex;

gap:38px;

align-items:center;

}

.navbar li{

font-weight:500;

transition:.3s;

}

.navbar li:hover{

color:var(--green);

}

.navbar a{

transition:.3s;

}

/* ==========================
      BOTTONI
========================== */

.btn{

display:inline-flex;

align-items:center;

justify-content:center;

padding:15px 32px;

border-radius:999px;

font-weight:600;

transition:var(--transition);

cursor:pointer;

}

.btn.green{

background:var(--green);

color:white;

box-shadow:0 15px 30px rgba(105,190,40,.28);

}

.btn.green:hover{

background:var(--green-dark);

transform:translateY(-3px);

}

.btn.white{

background:white;

color:#222;

border:1px solid #ddd;

}

.btn.white:hover{

background:#f2f2f2;

transform:translateY(-3px);

}

/* ==========================
      HERO
========================== */

.hero{

height:100vh;

position:relative;

display:flex;

align-items:center;

justify-content:center;

background:url("../images/hero.webp") center center/cover no-repeat;

overflow:hidden;

}

.hero .overlay{

position:absolute;

inset:0;

background:linear-gradient(

120deg,

rgba(0,0,0,.70),

rgba(0,0,0,.35)

);

}

.hero-content{

position:relative;

z-index:10;

max-width:760px;

text-align:left;

padding:0 40px;

color:white;

}

.hero h1{

font-size:4.4rem;

font-weight:800;

line-height:1.1;

margin-bottom:25px;

}

.hero p{

font-size:1.25rem;

opacity:.95;

margin-bottom:45px;

}

.hero-buttons{

display:flex;

gap:18px;

flex-wrap:wrap;

}

/* ==========================
      INTRO
========================== */

.intro{

padding:110px 0;

text-align:center;

background:white;

}

.intro h2{

font-size:2.8rem;

margin-bottom:25px;

color:#222;

}

.intro p{

max-width:900px;

margin:auto;

font-size:1.1rem;

color:var(--gray);

}

/* ==========================
      TITOLI
========================== */

section h2{

font-size:2.8rem;

font-weight:700;

margin-bottom:25px;

}

section{

padding:110px 0;

}

/* ==========================
      UTILITIES
========================== */

.text-center{

text-align:center;

}

.mb-2{

margin-bottom:20px;

}

.mb-4{

margin-bottom:40px;

}

.shadow{

box-shadow:var(--shadow);

}

.rounded{

border-radius:var(--radius);

}

/* ==========================
      ANIMAZIONE BASE
========================== */

.fade-up{

opacity:0;

transform:translateY(35px);

transition:1s;

}

.fade-up.show{

opacity:1;

transform:none;

}

/* ==========================
      SCROLLBAR
========================== */

::-webkit-scrollbar{

width:10px;

}

::-webkit-scrollbar-track{

background:#ececec;

}

::-webkit-scrollbar-thumb{

background:var(--green);

border-radius:20px;

}

::-webkit-scrollbar-thumb:hover{

background:var(--green-dark);

}
```