:root {
    --color-primary: #451A58;
    --color-secondary: #7C2F6E;
    --color-tertiary: #CF6A8D;
    --color-quaternary: #B0D9CE;
    --color-accent: #B0D9CE;
    --color-white: #ffffff;
    --color-gray-light: #f9f8fb;
    --color-gray: #6c757d;
    --color-dark: #1a1a1a;
    --font-primary: 'Inter', sans-serif;
    --transition: .3s ease;
}
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body {
    font-family: var(--font-primary);
    font-size: 1.0625rem;
    line-height: 1.65;
    color: var(--color-dark);
    background: var(--color-white);
    overflow-x: hidden;
}
.navbar-fixed {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(18px);
    border-bottom: 1px solid rgba(124, 47, 110, 0.08);
    z-index: 1000;
    padding: 0.9rem 0;
    box-shadow: 0 2px 14px rgba(69, 26, 88, 0.04);
    transition: all 0.3s ease;
}
.hero-neural {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 10rem 0 5rem;
    background: linear-gradient(145deg, rgba(176, 217, 206, 0.08) 0%, rgba(207, 106, 141, 0.06) 100%);
    position: relative;
}
.hero-neural__visual {
    position: relative;
}
.hero-neural__visual img {
    width: 100%;
    border-radius: 18px;
    box-shadow: 0 24px 64px rgba(69, 26, 88, 0.18);
}
.navbar {
    padding: 0;
}

.navbar-brand img {
    transition: var(--transition);
}

.navbar-nav .nav-link {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--color-dark);
    padding: 0.5rem 1.125rem;
    transition: var(--transition);
}

.navbar-nav .nav-link:hover {
    color: var(--color-secondary);
}

.btn-primary-nav {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-tertiary));
    color: var(--color-white);
    padding: 0.625rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9375rem;
    text-decoration: none;
    transition: var(--transition);
    border: none;
    display: inline-block;
    margin-left: 1rem;
}

.btn-primary-nav:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(124, 47, 110, 0.3);
    color: var(--color-white);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    line-height: 1.6;
    color: var(--color-gray);
    margin-bottom: 2.5rem;
}

.hero-actions {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
}

.btn-hero-primary {
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    padding: 1rem 2.25rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1.0625rem;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    border: 2px solid transparent;
}

.btn-hero-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 28px rgba(69, 26, 88, 0.35);
    color: var(--color-white);
}

.btn-hero-secondary {
    background: transparent;
    color: var(--color-secondary);
    padding: 1rem 2.25rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1.0625rem;
    text-decoration: none;
    transition: var(--transition);
    display: inline-block;
    border: 2px solid var(--color-secondary);
}

.btn-hero-secondary:hover {
    background: var(--color-secondary);
    color: var(--color-white);
}

.neural-nodes {
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
}

.node {
    position: absolute;
    background: rgba(176, 217, 206, 0.92);
    color: var(--color-primary);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(69, 26, 88, 0.15);
    backdrop-filter: blur(8px);
}

.node-1 {
    top: 12%;
    left: 8%;
}

.node-2 {
    top: 48%;
    right: 12%;
}

.node-3 {
    bottom: 18%;
    left: 15%;
}

.section-rete,
.section-aree,
.section-metodo,
.section-esempi,
.section-governance,
.section-faq,
.section-contact {
    padding: 6rem 0;
}

.section-aree {
    background: var(--color-gray-light);
}

.section-metodo {
    background: linear-gradient(145deg, rgba(69, 26, 88, 0.02) 0%, rgba(176, 217, 206, 0.04) 100%);
}

.section-governance {
    background: var(--color-gray-light);
}

.section-header {
    margin-bottom: 4rem;
}

.section-badge {
    display: inline-block;
    background: linear-gradient(135deg, rgba(124, 47, 110, 0.08), rgba(207, 106, 141, 0.08));
    color: var(--color-secondary);
    padding: 0.5rem 1.25rem;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.25rem;
}

.section-description {
    font-size: 1.125rem;
    color: var(--color-gray);
    max-width: 700px;
    margin: 0 auto;
}

.data-flow-stack {
    max-width: 900px;
    margin: 0 auto;
}

.flow-level {
    display: flex;
    align-items: center;
    gap: 2rem;
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(69, 26, 88, 0.06);
    transition: var(--transition);
}

.flow-level:hover {
    transform: translateX(8px);
    box-shadow: 0 8px 24px rgba(69, 26, 88, 0.12);
}

.flow-icon {
    flex-shrink: 0;
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-tertiary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 1.75rem;
}

.flow-content {
    flex: 1;
}

.flow-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.flow-text {
    font-size: 1rem;
    color: var(--color-gray);
    line-height: 1.6;
    margin: 0;
}

.flow-connector {
    width: 3px;
    height: 40px;
    background: linear-gradient(180deg, var(--color-secondary), var(--color-quaternary));
    margin: 1rem auto;
    border-radius: 2px;
}

.area-editorial {
    max-width: 1200px;
    margin: 0 auto;
}

.area-number {
    display: inline-block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-quaternary);
    opacity: 0.3;
    margin-bottom: 1rem;
}

.area-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.area-text {
    font-size: 1.0625rem;
    line-height: 1.7;
    color: var(--color-gray);
    margin-bottom: 1rem;
}

.area-output {
    font-size: 1rem;
    color: var(--color-secondary);
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 2px solid rgba(124, 47, 110, 0.15);
}

.area-visual img {
    width: 100%;
    border-radius: 14px;
    box-shadow: 0 16px 48px rgba(69, 26, 88, 0.12);
}

.method-connections {
    max-width: 800px;
    margin: 0 auto;
}

.connection-item {
    display: flex;
    align-items: flex-start;
    gap: 2rem;
    padding: 2rem 0;
    border-bottom: 1px solid rgba(124, 47, 110, 0.1);
}

.connection-item:last-child {
    border-bottom: none;
}

.connection-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
}

.connection-content {
    flex: 1;
}

.connection-title {
    font-size: 1.375rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.75rem;
}

.connection-text {
    font-size: 1rem;
    color: var(--color-gray);
    line-height: 1.65;
    margin: 0;
}

.esempi-nodes {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    max-width: 900px;
    margin: 0 auto;
}

.node-case {
    display: flex;
    align-items: center;
    gap: 2.5rem;
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 14px;
    box-shadow: 0 6px 20px rgba(69, 26, 88, 0.08);
    transition: var(--transition);
}

.node-case:hover {
    transform: translateY(-6px);
    box-shadow: 0 12px 32px rgba(69, 26, 88, 0.15);
}

.node-visual {
    flex-shrink: 0;
}

.node-circle {
    width: 90px;
    height: 90px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-tertiary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-white);
    font-size: 2.25rem;
}

.node-journey {
    flex: 1;
}

.node-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.journey-steps {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
    flex-wrap: wrap;
}

.journey-steps .step {
    background: rgba(176, 217, 206, 0.25);
    color: var(--color-secondary);
    padding: 0.375rem 0.875rem;
    border-radius: 16px;
    font-size: 0.875rem;
    font-weight: 600;
}

.journey-steps i {
    color: var(--color-quaternary);
    font-size: 0.875rem;
}

.node-description {
    font-size: 1rem;
    color: var(--color-gray);
    line-height: 1.65;
    margin: 0;
}

.governance-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2.5rem;
    max-width: 1100px;
    margin: 0 auto;
}

.governance-item {
    text-align: center;
    padding: 2rem 1.5rem;
}

.governance-icon {
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, rgba(69, 26, 88, 0.08), rgba(176, 217, 206, 0.12));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
    color: var(--color-secondary);
    font-size: 2rem;
}

.governance-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 0.875rem;
}

.governance-text {
    font-size: 0.9375rem;
    color: var(--color-gray);
    line-height: 1.6;
    margin: 0;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-white);
    border-radius: 10px;
    margin-bottom: 1.25rem;
    box-shadow: 0 2px 8px rgba(69, 26, 88, 0.05);
}

.faq-item.active {
    box-shadow: 0 6px 18px rgba(124, 47, 110, 0.12);
}

.faq-question {
    padding: 1.5rem 2rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--color-primary);
    transition: var(--transition);
}

.faq-question:hover {
    color: var(--color-secondary);
}

.faq-question i {
    font-size: 1rem;
    color: var(--color-secondary);
    transition: transform 0.3s ease;
}

.faq-item.active .faq-question i {
    transform: rotate(180deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-answer.active {
    max-height: 500px;
    padding: 0 2rem 1.5rem;
}

.faq-answer p {
    font-size: 1rem;
    color: var(--color-gray);
    line-height: 1.65;
    margin: 0;
}

.section-contact {
    background: linear-gradient(145deg, rgba(69, 26, 88, 0.03) 0%, rgba(176, 217, 206, 0.06) 100%);
}

.contact-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 1.25rem;
}

.contact-text {
    font-size: 1.0625rem;
    color: var(--color-gray);
    line-height: 1.65;
    margin-bottom: 2.5rem;
}

.contact-steps {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.contact-step {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.step-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-tertiary));
    color: var(--color-white);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 700;
}

.contact-step p {
    margin: 0;
    font-size: 1rem;
    color: var(--color-gray);
}

.contact-form {
    background: var(--color-white);
    padding: 2.5rem;
    border-radius: 14px;
    box-shadow: 0 8px 28px rgba(69, 26, 88, 0.1);
}

.form-group {
    margin-bottom: 1.75rem;
}

.form-group label {
    display: block;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.625rem;
}

.form-control {
    width: 100%;
    padding: 0.875rem 1.25rem;
    border: 2px solid rgba(124, 47, 110, 0.15);
    border-radius: 8px;
    font-size: 1rem;
    color: var(--color-dark);
    background: var(--color-white);
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-secondary);
    box-shadow: 0 0 0 3px rgba(124, 47, 110, 0.1);
}

.error-message {
    display: block;
    color: #e63946;
    font-size: 0.875rem;
    margin-top: 0.5rem;
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--color-secondary), var(--color-tertiary));
    color: var(--color-white);
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1.0625rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(124, 47, 110, 0.3);
}

.site-footer {
    background: var(--color-primary);
    color: rgba(255, 255, 255, 0.8);
    padding: 4rem 0 2rem;
}

.footer-top {
    margin-bottom: 3rem;
}

.footer-about {
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0;
}

.footer-heading {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--color-white);
    margin-bottom: 1.25rem;
}

.footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: var(--transition);
}

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

.footer-contact {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact li {
    margin-bottom: 0.875rem;
    font-size: 0.9375rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.footer-contact i {
    color: var(--color-quaternary);
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    text-align: center;
}

.footer-bottom p {
    margin: 0;
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.cookie-notice {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    box-shadow: 0 -4px 20px rgba(69, 26, 88, 0.15);
    padding: 1.5rem;
    z-index: 9999;
    transform: translateY(100%);
    transition: transform 0.3s ease;
}

.cookie-notice.show {
    transform: translateY(0);
}

.cookie-notice.hide {
    transform: translateY(100%);
}

.cookie-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.cookie-text {
    flex: 1;
    font-size: 0.9375rem;
    color: var(--color-gray);
    margin: 0;
}

.cookie-text a {
    color: var(--color-secondary);
    text-decoration: underline;
}

.cookie-actions {
    display: flex;
    gap: 1rem;
}

.cookie-btn {
    padding: 0.625rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.9375rem;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.cookie-btn-accept {
    background: linear-gradient(135deg, var(--color-secondary), var(--color-tertiary));
    color: var(--color-white);
}

.cookie-btn-accept:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(124, 47, 110, 0.3);
}

.cookie-btn-decline {
    background: transparent;
    color: var(--color-gray);
    border: 2px solid rgba(108, 117, 125, 0.3);
}

.cookie-btn-decline:hover {
    background: var(--color-gray-light);
}

@media (max-width: 991px) {
    .hero-title {
        font-size: 2.25rem;
    }

    .section-title {
        font-size: 2rem;
    }

    .area-title {
        font-size: 1.625rem;
    }

    .node-case {
        flex-direction: column;
        text-align: center;
    }

    .journey-steps {
        justify-content: center;
    }

    .cookie-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 767px) {
    .hero-title {
        font-size: 1.875rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .flow-level {
        flex-direction: column;
        text-align: center;
    }

    .contact-form {
        padding: 1.75rem;
    }
}