:root {
    --calicar-red: #E30613;
    --dark-bg: #121212;
    --text-main: #333;
    --white: #ffffff;
}

* { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Inter', sans-serif; }
html { scroll-behavior: smooth; }

/* Integrazione Logo Professionale */
.logo-fixed {
    height: 55px;
    display: block;
    mix-blend-mode: multiply; /* Forza la trasparenza dello sfondo bianco */
    filter: contrast(1.1); /* Rende i colori del logo più vivi */
    padding: 5px 0;
}

/* Navigazione Mobile-Responsive */
nav {
    display: flex; justify-content: space-between; align-items: center;
    padding: 10px 5%;
    background: var(--white);
    position: fixed; top: 0; width: 100%; z-index: 1000;
    box-shadow: 0 2px 15px rgba(0,0,0,0.08);
}

.nav-menu { display: flex; list-style: none; }
.nav-menu li a { 
    text-decoration: none; color: var(--dark-bg); 
    margin-left: 30px; font-weight: 700; font-size: 0.9rem;
    text-transform: uppercase; transition: 0.3s;
}
.nav-menu li a:hover { color: var(--calicar-red); }

#menu-toggle { display: none; }
.menu-icon { display: none; font-size: 1.6rem; cursor: pointer; color: var(--calicar-red); }

/* Hero con Gradiente Sportivo */
.hero-main {
    height: 75vh;
    background: linear-gradient(135deg, var(--calicar-red) 0%, #000 100%);
    display: flex; align-items: center; justify-content: center;
    text-align: center; color: var(--white); margin-top: 75px;
}
.hero-overlay h1 { font-size: 3.5rem; letter-spacing: -2px; margin-bottom: 15px; }
.cta-btn { 
    display: inline-block; margin-top: 25px; padding: 12px 35px;
    background: var(--white); color: var(--calicar-red);
    text-decoration: none; font-weight: 800; border-radius: 4px;
}

/* Sezioni Contenuto */
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
.section-title { text-align: center; font-size: 2.5rem; margin-bottom: 40px; }
.section-title::after { content: ''; display: block; width: 50px; height: 4px; background: var(--calicar-red); margin: 10px auto; }

.about-section { padding: 100px 0; background: #fff; }
.about-content { max-width: 800px; margin: 0 auto; text-align: center; font-size: 1.1rem; line-height: 1.8; }

.services-section { padding: 100px 0; background: #f9f9f9; }
.services-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 30px; }
.service-item { 
    background: #fff; padding: 40px; border-radius: 10px; text-align: center;
    transition: 0.3s; box-shadow: 0 4px 10px rgba(0,0,0,0.03);
}
.service-item:hover { transform: translateY(-10px); box-shadow: 0 10px 25px rgba(0,0,0,0.1); }
.service-item i { font-size: 2.5rem; color: var(--calicar-red); margin-bottom: 20px; }

/* Form di Contatto */
.contact-section { padding: 80px 0; }
.contact-form { max-width: 600px; margin: 0 auto; display: grid; gap: 15px; }
input, textarea { padding: 15px; border: 1px solid #ddd; border-radius: 5px; }
.send-btn { background: var(--calicar-red); color: #fff; border: none; padding: 18px; font-weight: bold; cursor: pointer; border-radius: 5px; }

/* Responsive Mobile */
@media (max-width: 768px) {
    .menu-icon { display: block; }
    .nav-menu {
        position: absolute; top: 100%; left: 0; width: 100%;
        background: var(--white); flex-direction: column;
        max-height: 0; overflow: hidden; transition: 0.4s;
    }
    #menu-toggle:checked ~ .nav-menu { max-height: 400px; padding: 20px 0; }
    .nav-menu li { padding: 15px 5%; border-bottom: 1px solid #eee; }
    .nav-menu li a { margin: 0; }
    .hero-overlay h1 { font-size: 2.5rem; }
}