:root {
            --primary: #10b981; /* Emerald 500 */
            --primary-hover: #059669; /* Emerald 600 */
            --primary-dark: #047857; /* Emerald 700 */
            --hero-bg: linear-gradient(135deg, #0f172a 0%, #1e293b 50%, var(--primary-dark) 100%);
            --bg-color: #f8fafc; /* Slate 50 */
            --text-main: #0f172a; /* Slate 900 */
            --text-muted: #475569; /* Slate 600 */
            --border-color: #e2e8f0; /* Slate 200 */
            --white: #ffffff;
            --input-focus: rgba(16, 185, 129, 0.25);
        }

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

        body {
            background-color: var(--bg-color);
            color: var(--text-main);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            overflow-x: hidden;
        }

        /* Navbar */
        nav {
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            padding: 1.5rem 5%;
            z-index: 100;
            display: flex;
            justify-content: space-between;
            align-items: center;
        }

        .nav-inner {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1.25rem;
        }

        .logo {
            display: flex;
            align-items: center;
            gap: 0.75rem;
            text-decoration: none;
            color: var(--white);
            font-weight: 800;
            font-size: 1.5rem;
            letter-spacing: -0.02em;
            white-space: nowrap;
        }

        .logo-icon {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            background: linear-gradient(135deg, var(--primary) 0%, #34d399 100%);
            border-radius: 10px;
            box-shadow: 0 4px 10px rgba(16, 185, 129, 0.4);
        }

        .logo svg {
            width: 24px;
            height: 24px;
            fill: none;
            stroke: var(--white);
            stroke-width: 2.5;
            stroke-linecap: round;
            stroke-linejoin: round;
        }

        .logo span {
            background: linear-gradient(to right, #ffffff, #a7f3d0);
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 0.9rem;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .nav-links a {
            color: rgba(255, 255, 255, 0.9);
            text-decoration: none;
            font-weight: 600;
            font-size: 0.95rem;
            padding: 0.45rem 0.75rem;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.12);
            background: rgba(15, 23, 42, 0.15);
            transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
        }

        .nav-links a:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(167, 243, 208, 0.35);
            transform: translateY(-1px);
        }

        .nav-links a.cta {
            background: rgba(16, 185, 129, 0.2);
            border-color: rgba(16, 185, 129, 0.45);
            color: #d1fae5;
        }

        .nav-links a.cta:hover {
            background: rgba(16, 185, 129, 0.3);
        }

        /* Hamburger menu (details/summary) */
        details.nav-dropdown {
            position: relative;
        }

        details.nav-dropdown summary {
            list-style: none;
            cursor: pointer;
            border-radius: 0.9rem;
            border: 1px solid rgba(255, 255, 255, 0.14);
            background: rgba(15, 23, 42, 0.22);
            padding: 0.55rem 0.65rem;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 0.5rem;
            color: rgba(255, 255, 255, 0.95);
            transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
        }

        details.nav-dropdown summary:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(167, 243, 208, 0.35);
            transform: translateY(-1px);
        }

        details.nav-dropdown summary::-webkit-details-marker {
            display: none;
        }

        .hamburger {
            width: 26px;
            height: 18px;
            display: inline-flex;
            flex-direction: column;
            justify-content: space-between;
        }

        .hamburger span {
            height: 2px;
            width: 100%;
            background: rgba(255, 255, 255, 0.95);
            border-radius: 999px;
        }

        details.nav-dropdown .dropdown-panel {
            position: absolute;
            right: 0;
            top: calc(100% + 0.6rem);
            min-width: 280px;
            background: rgba(15, 23, 42, 0.92);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 1rem;
            padding: 0.75rem;
            box-shadow: 0 20px 35px -15px rgba(0,0,0,0.6);
            backdrop-filter: blur(10px);
            z-index: 200;
        }

        details.nav-dropdown .dropdown-panel a {
            display: block;
            padding: 0.85rem 0.9rem;
            border-radius: 0.85rem;
            color: rgba(255, 255, 255, 0.92);
            text-decoration: none;
            font-weight: 700;
            border: 1px solid rgba(255,255,255,0.08);
            background: rgba(2, 6, 23, 0.15);
            transition: background 0.15s ease, border-color 0.15s ease;
            margin-bottom: 0.55rem;
        }

        details.nav-dropdown .dropdown-panel a:hover {
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(167, 243, 208, 0.25);
        }

        details.nav-dropdown .dropdown-panel a.cta {
            background: rgba(16, 185, 129, 0.22);
            border-color: rgba(16, 185, 129, 0.45);
            color: #d1fae5;
        }

        details.nav-dropdown .dropdown-panel a:last-child {
            margin-bottom: 0;
        }

        .skip-link {
            position: absolute;
            left: -999px;
            top: 0;
            background: #ffffff;
            color: #0f172a;
            padding: 0.75rem 1rem;
            border-radius: 0.75rem;
            z-index: 9999;
            text-decoration: none;
            font-weight: 700;
        }

        .skip-link:focus {
            left: 1rem;
            top: 1rem;
            outline: 3px solid rgba(16, 185, 129, 0.35);
        }

        /* FAQ accessibile (details/summary) */
        .faq-list {
            display: grid;
            gap: 1rem;
        }

        details.faq-item {
            border: 1px solid var(--border-color);
            border-radius: 0.75rem;
            overflow: hidden;
            background: var(--white);
        }

        details.faq-item[open] {
            border-color: rgba(16, 185, 129, 0.45);
            box-shadow: 0 10px 20px -10px rgba(0, 0, 0, 0.08);
        }

        details.faq-item summary {
            list-style: none;
            cursor: pointer;
            padding: 1.1rem 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
        }

        details.faq-item summary::-webkit-details-marker {
            display: none;
        }

        details.faq-item summary .faq-icon {
            width: 28px;
            height: 28px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--border-color);
            color: var(--primary);
            font-weight: 900;
            flex-shrink: 0;
            background: rgba(16, 185, 129, 0.08);
        }

        details.faq-item .faq-body {
            padding: 0 1.25rem 1.25rem 1.25rem;
            color: var(--text-muted);
            line-height: 1.75;
            border-top: 1px solid var(--border-color);
        }

        /* Hero Section */
        .hero {
            position: relative;
            padding: 10rem 1.5rem 10rem 1.5rem;
            background: var(--hero-bg);
            color: var(--white);
            text-align: center;
            overflow: hidden;
        }

        /* Subtle Background Pattern / Shapes */
        .hero::before {
            content: '';
            position: absolute;
            top: -10%;
            left: -10%;
            width: 50%;
            height: 50%;
            background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, transparent 70%);
            border-radius: 50%;
        }
        
        .hero::after {
            content: '';
            position: absolute;
            bottom: -20%;
            right: -10%;
            width: 60%;
            height: 60%;
            background: radial-gradient(circle, rgba(52, 211, 153, 0.1) 0%, transparent 70%);
            border-radius: 50%;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 900px;
            margin: 0 auto;
            animation: fadeInDown 0.8s ease-out;
        }

        .badge {
            display: inline-block;
            background: rgba(255, 255, 255, 0.1);
            backdrop-filter: blur(10px);
            padding: 0.6rem 1.7rem; /* Ingrandito padding */
            border-radius: 999px;
            font-size: 1rem; /* Ingrandito font-size */
            font-weight: 700; /* Più spesso */
            letter-spacing: 0.05em;
            text-transform: uppercase;
            margin-bottom: 2rem;
            border: 1px solid rgba(16, 185, 129, 0.4);
            color: #a7f3d0; /* Emerald 200 */
            box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
        }

        .hero h1 {
            font-size: clamp(2.2rem, 5vw, 4rem);
            font-weight: 800;
            line-height: 1.15;
            margin-bottom: 1.5rem;
            letter-spacing: -0.02em;
        }
        
        .hero h1 span {
            color: var(--primary);
        }

        .hero p {
            font-size: clamp(1.125rem, 2vw, 1.25rem);
            color: #cbd5e1; /* Slate 300 */
            max-width: 750px;
            margin: 0 auto 1rem auto;
            font-weight: 400;
        }

        .hero-highlight {
            font-size: 1.35rem;
            font-weight: 600;
            color: var(--white);
            margin-bottom: 2rem;
            line-height: 1.5;
        }

        /* New Hero Elements from v3 */
        .hero-benefits {
            list-style: none;
            max-width: 650px;
            margin: 0 auto 2.5rem auto;
            text-align: left;
            display: flex;
            flex-direction: column;
            gap: 1rem;
        }

        .hero-benefits li {
            font-size: 1.15rem;
            color: var(--white);
            display: flex;
            align-items: center;
            gap: 0.75rem;
            font-weight: 500;
            background: rgba(0, 0, 0, 0.2);
            padding: 0.75rem 1.25rem;
            border-radius: 0.75rem;
            border-left: 4px solid var(--primary);
        }

        .hero-benefits li svg {
            width: 1.5rem;
            height: 1.5rem;
            color: var(--primary);
            flex-shrink: 0;
        }

        .hero-trust {
            display: flex;
            flex-direction: column; /* Cambiato in colonna per equilibrio */
            align-items: center; /* Centrati orizzontalmente */
            gap: 0.85rem; /* Gap più compatto tra le righe */
            margin-bottom: 2.5rem;
        }

        .trust-item {
            font-size: 1.05rem; /* Leggermente più grande e leggibile */
            font-weight: 500;
            color: #cbd5e1;
            display: flex;
            align-items: center;
            gap: 0.65rem;
        }

        .trust-item .check {
            color: #34d399; /* Emerald 400 */
        }

        .hero-urgency {
            background: rgba(239, 68, 68, 0.1); /* Red 500 very light transparent */
            border: 1px solid rgba(239, 68, 68, 0.3);
            color: #fca5a5; /* Red 300 */
            padding: 1rem 1.5rem;
            border-radius: 0.75rem;
            display: inline-block;
            font-size: 1.05rem;
            line-height: 1.5;
        }

        .hero-urgency strong {
            color: var(--white);
            display: block;
            margin-top: 0.25rem;
        }

        /* Form Container Details */
        .form-section {
            padding: 0 1.5rem;
            margin-top: -6rem; /* Overlap hero */
            position: relative;
            z-index: 10;
            margin-bottom: 4rem;
        }

        .form-card {
            background: var(--white);
            max-width: 850px;
            margin: 0 auto;
            border-radius: 1.25rem;
            box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
            padding: 3.5rem;
            animation: fadeInUp 0.8s ease-out 0.2s both;
            border: 1px solid var(--border-color);
        }

        .form-header {
            text-align: center;
            margin-bottom: 3rem;
        }

        .form-header h2 {
            font-size: 1.85rem;
            color: var(--text-main);
            margin-bottom: 0.5rem;
            font-weight: 800;
            letter-spacing: -0.01em;
        }

        .form-header p {
            color: var(--text-muted);
            font-size: 1.05rem;
        }

        /* Form Layout Grid */
        .form-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 1.25rem 2rem;
            margin-bottom: 2.5rem;
        }

        .form-group {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .form-group.full-width {
            grid-column: 1 / -1;
        }

        /* Form Sections Tittles */
        .section-title {
            grid-column: 1 / -1;
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--primary-dark);
            margin-top: 1.5rem;
            margin-bottom: 0.5rem;
            padding-bottom: 0.5rem;
            border-bottom: 2px solid var(--border-color);
            display: flex;
            align-items: center;
            gap: 0.5rem;
            text-transform: uppercase;
            letter-spacing: 0.05em;
        }
        
        .section-title:first-child {
            margin-top: 0;
        }

        .section-title span {
            background-color: var(--primary);
            color: white;
            width: 28px;
            height: 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            font-size: 0.9rem;
            font-weight: 800;
        }

        .form-group label {
            font-weight: 600;
            font-size: 0.95rem;
            color: #334155;
        }

        .form-group label .required {
            color: #ef4444; /* red 500 */
        }
        
        .field-hint {
            font-size: 0.8rem;
            color: var(--text-muted);
            margin-top: -0.25rem;
        }

        .form-control {
            padding: 0.85rem 1rem;
            border: 1.5px solid var(--border-color);
            border-radius: 0.5rem;
            font-size: 1rem;
            color: var(--text-main);
            background-color: #f8fafc;
            transition: all 0.2s ease;
            outline: none;
            width: 100%;
        }

        .form-control:hover {
            border-color: #cbd5e1;
            background-color: #fff;
        }

        .form-control:focus {
            border-color: var(--primary);
            background-color: #fff;
            box-shadow: 0 0 0 4px var(--input-focus);
        }

        select.form-control {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2364748B'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 1rem center;
            background-size: 1em;
            padding-right: 2.5rem;
            cursor: pointer;
        }

        /* Radio & Checkbox Options styling */
        .radio-group {
            display: flex;
            flex-direction: column;
            gap: 0.75rem;
            margin-top: 0.25rem;
        }
        
        .radio-group.horizontal {
            flex-direction: row;
            flex-wrap: wrap;
            gap: 1.5rem;
        }

        .radio-label {
            display: flex;
            align-items: flex-start;
            gap: 0.6rem;
            font-weight: 500;
            cursor: pointer;
            font-size: 0.95rem;
            color: #475569;
            padding: 0.25rem 0;
            line-height: 1.4;
            transition: color 0.2s ease;
        }

        .radio-label:hover {
            color: var(--text-main);
        }

        .radio-label input[type="radio"],
        .radio-label input[type="checkbox"] {
            width: 1.15rem;
            height: 1.15rem;
            accent-color: var(--primary);
            cursor: pointer;
            margin-top: 0.1rem;
        }

        /* Submit Button */
        .submit-btn {
            background-color: var(--primary);
            color: var(--white);
            border: none;
            padding: 1.25rem 1.5rem;
            font-size: 1.15rem;
            font-weight: 700;
            border-radius: 0.75rem;
            cursor: pointer;
            width: 100%;
            transition: all 0.3s ease;
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 0.75rem;
            box-shadow: 0 4px 14px 0 rgba(16, 185, 129, 0.39);
        }

        .submit-btn:hover {
            background-color: var(--primary-hover);
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
        }

        .submit-btn:active {
            transform: translateY(0);
        }

        .submit-btn svg {
            width: 1.25rem;
            height: 1.25rem;
            transition: transform 0.3s ease;
        }
        
        .submit-btn:hover svg {
            transform: translateX(5px);
        }

        /* Trust Section */
        .trust-section {
            padding: 2rem 1.5rem 5rem 1.5rem;
            text-align: center;
            max-width: 900px;
            margin: 0 auto;
        }

        .trust-section h3 {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-main);
            margin-bottom: 1rem;
        }

        .trust-section p {
            font-size: 1rem;
            color: var(--text-muted);
            line-height: 1.8;
            max-width: 800px;
            margin: 0 auto;
        }

        /* Footer */
        footer {
            margin-top: auto;
            background-color: #0f172a;
            color: #94a3b8;
            padding: 3.5rem 1.5rem 2rem 1.5rem;
            font-size: 0.9rem;
            border-top: 1px solid #1e293b;
            text-align: center;
        }

        .footer-logo {
            display: inline-flex;
            justify-content: center;
            align-items: center;
            gap: 0.5rem;
            margin-bottom: 1rem;
            font-weight: 700;
            color: var(--white);
            font-size: 1.25rem;
        }

        .footer-logo svg {
            width: 20px;
            height: 20px;
            fill: none;
            stroke: var(--primary);
            stroke-width: 2.5;
            stroke-linecap: round;
            stroke-linejoin: round;
        }
        
        .footer-grid {
            max-width: 1000px;
            margin: 0 auto;
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
            gap: 2rem;
            text-align: center;
        }

        .footer-company-info {
            display: flex;
            flex-direction: column;
            align-items: center;
            margin-bottom: 2rem;
        }

        .footer-legal-links {
            display: flex;
            flex-direction: column;
            gap: 0.5rem;
        }

        .footer-legal-links a {
            color: #94a3b8;
            text-decoration: none;
            transition: color 0.2s ease;
        }

        .footer-legal-links a:hover {
            color: var(--white);
            text-decoration: underline;
        }

        .footer-office {
            color: #cbd5e1;
            margin-bottom: 0.5rem;
        }

        .footer-copyright {
            margin-top: 3rem;
            padding-top: 1.5rem;
            border-top: 1px solid #1e293b;
            font-size: 0.85rem;
        }

        /* Animations */
        @keyframes fadeInDown {
            from {
                opacity: 0;
                transform: translateY(-30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @keyframes fadeInUp {
            from {
                opacity: 0;
                transform: translateY(30px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        /* How it works section */
        .how-it-works-section {
            background-color: var(--white);
            padding: 5rem 1.5rem;
            border-top: 1px solid var(--border-color);
        }

        .how-it-works-section .content {
            max-width: 1000px;
            margin: 0 auto;
            text-align: center;
        }

        .how-it-works-section h3 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--text-main);
            margin-bottom: 3.5rem;
            letter-spacing: -0.01em;
        }

        .steps-container {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 1.5rem;
        }

        .step-box {
            flex: 1;
            background: var(--bg-color);
            padding: 2.5rem 1.5rem;
            border-radius: 1.5rem;
            border: 1px solid var(--border-color);
            position: relative;
            transition: transform 0.3s ease, box-shadow 0.3s ease;
        }
        
        .step-box:hover {
            transform: translateY(-5px);
            box-shadow: 0 10px 25px -5px rgba(0,0,0,0.05);
            border-color: #cbd5e1;
        }

        .step-num {
            width: 3rem;
            height: 3rem;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.25rem;
            font-weight: 800;
            margin: 0 auto 1.5rem auto;
            box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
        }

        .step-box h4 {
            font-size: 1.15rem;
            font-weight: 600;
            color: var(--text-main);
            line-height: 1.4;
        }

        .step-arrow {
            color: #cbd5e1;
            flex-shrink: 0;
        }
        
        .step-arrow svg {
            width: 2rem;
            height: 2rem;
        }

        /* Responsive */
        @media (max-width: 900px) {
            .steps-container {
                flex-direction: column;
                gap: 1rem;
            }
            .step-arrow {
                transform: rotate(90deg);
                margin: 0.5rem 0;
            }
            .step-box {
                width: 100%;
                max-width: 400px;
            }
        }

        @media (max-width: 768px) {
            nav {
                padding: 1rem 1.25rem;
                justify-content: center;
            }
            .nav-inner {
                flex-direction: column;
                align-items: center;
            }
            .nav-links { display: none; }
            details.nav-dropdown .dropdown-panel {
                left: 50%;
                right: auto;
                transform: translateX(-50%);
                width: min(92vw, 420px);
            }
            .hero {
                padding: 7rem 1rem 6rem 1rem;
            }
            .hero-content {
                padding-top: 1.5rem;
            }
            .hero h1 {
                font-size: 2.1rem;
            }
            .hero-highlight {
                font-size: 1.15rem;
            }
            .hero-benefits li {
                font-size: 1.05rem;
                padding: 0.75rem 1rem;
            }
            .hero-trust {
                flex-direction: column;
                align-items: center;
                gap: 1rem;
            }
            .hero-urgency {
                font-size: 0.95rem;
            }
            .form-section {
                padding: 0 1rem;
                margin-top: -3rem;
            }
            .form-card {
                padding: 2rem 1.25rem;
                border-radius: 1rem;
            }
            .form-header h2 {
                font-size: 1.4rem;
            }
            .form-grid {
                grid-template-columns: 1fr;
                gap: 1rem;
                margin-bottom: 2rem;
            }
            .section-title {
                font-size: 1rem;
                margin-top: 2rem;
            }
            .radio-group {
                gap: 0.75rem; /* Separazione per checkbox multipli da mobile */
            }
            .radio-group.horizontal {
                flex-direction: column;
            }
            .radio-label {
                padding: 0.35rem 0; /* Padding extra per tocco su mobile */
                font-size: 0.95rem;
            }
            .submit-btn {
                padding: 1.15rem 1rem;
                font-size: 1.05rem;
            }
            .trust-section {
                padding: 1rem 1.25rem 4rem 1.25rem;
            }
            .how-it-works-section {
                padding: 3.5rem 1rem;
            }
            .how-it-works-section h3 {
                font-size: 1.6rem;
                margin-bottom: 2.5rem;
            }
            
            /* Ottimizzazione Footer a colonne su mobile */
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 2.5rem;
            }
        }
        
        @media (max-width: 480px) {
            .hero h1 {
                font-size: 1.8rem;
            }
            .badge {
                font-size: 0.85rem;
                padding: 0.5rem 1.25rem;
            }
            .hero-benefits li {
                font-size: 0.95rem;
            }
        }