/* Reset CSS */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Variabili per colori e dimensioni */
:root {
    --primary-color: #3498db;
    --secondary-color: #2980b9;
    --accent-color: #e74c3c;
    --text-color: #333;
    --light-text: #fff;
    --bg-light: #f8f9fa;
    --bg-dark: #343a40;
    --transition: all 0.3s ease;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    --border-radius: 5px;
}

html {
    scroll-behavior: smooth;
}

body {
    line-height: 1.6;
    color: var(--text-color);
    background-color: #fff;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Utility classes */
.btn {
    display: inline-block;
    background-color: var(--primary-color);
    color: var(--light-text);
    padding: 12px 30px;
    border-radius: var(--border-radius);
    text-decoration: none;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    font-weight: 600;
    text-align: center;
}

.btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.section {
    padding: 80px 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 15px;
    color: var(--text-color);
}

.section-description {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 40px;
    color: #666;
    font-size: 1.1rem;
}

.divider {
    height: 4px;
    width: 70px;
    background-color: var(--primary-color);
    margin: 0 auto 20px;
    border-radius: 2px;
}

/* Header & Navigation */
header {
    position: relative;
    background-color: var(--bg-light);
    height: 100vh;
    min-height: 500px;
    overflow: hidden;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(255, 255, 255, 0.95);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.scrolled {
    padding: 10px 0;
    background-color: #fff;
}

.logo-container {
    display: flex;
    align-items: center;
    margin-left: 20px;
}

#logo {
    width: 60px;
    height: auto;
    margin-right: 15px;
}

.brand h1 {
    font-size: 1.5rem;
    color: var(--text-color);
    margin: 0;
}

.slogan {
    font-size: 0.9rem;
    color: #666;
}

.nav-links {
    display: flex;
    list-style: none;
    margin-right: 20px;
}

.nav-links li {
    margin: 0 15px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
    font-size: 1rem;
}

.nav-links a:hover {
    color: var(--primary-color);
}

.menu-toggle {
    display: none;
    font-size: 1.5rem;
    cursor: pointer;
    margin-right: 20px;
}

/* Hero Section */
.hero {
    height: 100%;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    background: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), url('https://via.placeholder.com/1920x1080');
    background-size: cover;
    background-position: center;
    color: var(--light-text);
}

.hero-content {
    max-width: 800px;
    padding: 0 20px;
}

.hero-content h2 {
    font-size: 3rem;
    margin-bottom: 20px;
    font-weight: 700;
}

.hero-content p {
    font-size: 1.2rem;
    margin-bottom: 30px;
}

/* Services Section */
#servizi {
    background-color: var(--bg-light);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
    margin-top: 50px;
}

.service-card {
    background-color: #fff;
    border-radius: var(--border-radius);
    padding: 30px 20px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.1);
}

.service-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.service-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

/* Portfolio Section */
.portfolio-filters {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 30px;
}

.filter-btn {
    background: none;
    border: none;
    padding: 8px 20px;
    margin: 5px;
    cursor: pointer;
    font-size: 1rem;
    border-radius: 20px;
    transition: var(--transition);
}

.filter-btn.active, .filter-btn:hover {
    background-color: var(--primary-color);
    color: var(--light-text);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 25px;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    height: 250px;
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: 20px;
    opacity: 0;
    transition: var(--transition);
    color: var(--light-text);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-item:hover img {
    transform: scale(1.1);
}

.portfolio-overlay h3 {
    font-size: 1.5rem;
    margin-bottom: 10px;
}

.portfolio-overlay p {
    margin-bottom: 15px;
}

.portfolio-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
}

.portfolio-link:hover {
    color: var(--light-text);
}

/* Contact Section */
#contatti {
    background-color: var(--bg-light);
}

.contact-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.info-item {
    display: flex;
    align-items: center;
    margin-bottom: 20px;
}

.info-item i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-right: 15px;
    width: 35px;
    text-align: center;
}

.info-item p {
    font-size: 1.1rem;
}

.social-links {
    display: flex;
    margin-top: 30px;
}

.social-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: var(--light-text);
    margin-right: 15px;
    transition: var(--transition);
    text-decoration: none;
}

.social-icon:hover {
    background-color: var(--secondary-color);
    transform: translateY(-5px);
}

.form-group {
    margin-bottom: 20px;
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(52, 152, 219, 0.2);
}

.form-group textarea {
    min-height: 150px;
    resize: vertical;
}

.btn-submit {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
}

/* Footer */
.footer {
    background-color: var(--bg-dark);
    color: #adb5bd;
    padding: 60px 0 0;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
}

.footer-img {
    width: 100px;
    height: auto;
    margin-bottom: 15px;
}

.footer-logo h3 {
    color: var(--light-text);
    margin-bottom: 10px;
}

.footer-links h4,
.footer-newsletter h4 {
    color: var(--light-text);
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.footer-links ul {
    list-style: none;
}

.footer-links li {
    margin-bottom: 10px;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

.footer-newsletter p {
    margin-bottom: 15px;
}

.footer-newsletter form {
    display: flex;
}

.footer-newsletter input {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: var(--border-radius) 0 0 var(--border-radius);
}

.footer-newsletter button {
    background-color: var(--primary-color);
    color: var(--light-text);
    border: none;
    padding: 10px 20px;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    cursor: pointer;
    transition: var(--transition);
}

.footer-newsletter button:hover {
    background-color: var(--secondary-color);
}

.footer-bottom {
    border-top: 1px solid #4b5156;
    padding: 20px 0;
    text-align: center;
}

/* Responsive Design */
@media screen and (max-width: 991px) {
    .contact-container {
        grid-template-columns: 1fr;
    }
    
    .contact-info {
        margin-bottom: 40px;
    }
}

@media screen and (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    
    .nav-links {
        position: fixed;
        top: 80px;
        left: -100%;
        flex-direction: column;
        background-color: #fff;
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
        padding: 10px 0;
        margin: 0;
    }
    
    .nav-links.active {
        left: 0;
    }
    
    .nav-links li {
        margin: 15px 0;
    }
    
    .hero-content h2 {
        font-size: 2.5rem;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media screen and (max-width: 576px) {
    .hero-content h2 {
        font-size: 2rem;
    }
    
    .section {
        padding: 60px 0;
    }
    
    .services-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
}

/* Animazioni */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 1s ease forwards;
}

/* Classe per i portfolio items nascosti dal filtro */
.hide {
    display: none;
}