/* ===== CSS VARIABLES ===== */
:root {
    /* Colori dal logo */
    --navy-blue: #1a2b4a;
    --dark-navy: #0f1c33;
    --accent-red: #e63946;
    --light-blue: #4a90e2;
    --white: #ffffff;
    --light-gray: #f8f9fa;
    --gray: #6c757d;
    --border-gray: #e0e0e0;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;

    /* Typography */
    --font-main: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Transitions */
    --transition: all 0.3s ease;
}

/* ===== RESET & BASE ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-main);
    line-height: 1.6;
    color: var(--dark-navy);
    background-color: var(--white);
    overflow-x: hidden;
}

/* ===== UTILITY CLASSES ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }
}

/* ===== NAVIGATION ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    backdrop-filter: blur(10px);
}

.nav-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo img {
    height: 45px;
    width: auto;
    max-width: 200px;
    object-fit: contain;
}

.cta-button-nav {
    background: var(--accent-red);
    color: var(--white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 50px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
}

.cta-button-nav:hover {
    background: var(--dark-navy);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(230, 57, 70, 0.3);
}

/* ===== HERO SECTION ===== */
.hero {
    position: relative;
    padding: 150px 0 100px;
    background: linear-gradient(135deg, var(--navy-blue) 0%, var(--dark-navy) 100%);
    color: var(--white);
    overflow: hidden;
}

.hero-decoration {
    position: absolute;
    top: -50%;
    right: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.15), transparent);
    border-radius: 50%;
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    animation: fadeInUp 1s ease;
}

.hero-logo {
    margin-bottom: var(--spacing-lg);
    animation: fadeInDown 1s ease;
}

.hero-logo img {
    height: 180px;
    width: auto;
    max-width: 90%;
    object-fit: contain;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
}

.hero-title .highlight {
    color: var(--accent-red);
    position: relative;
    display: inline-block;
}

.hero-subtitle {
    margin: var(--spacing-md) 0;
}

.big-text {
    font-size: 1.8rem;
    font-weight: 600;
    margin: 0.5rem 0;
}

.hero-description {
    font-size: 1.2rem;
    margin: var(--spacing-md) 0;
    opacity: 0.9;
}

.hero-badge {
    display: inline-block;
    background: rgba(230, 57, 70, 0.2);
    border: 2px solid var(--accent-red);
    border-radius: 50px;
    padding: 0.75rem 1.5rem;
    margin: var(--spacing-md) 0;
}

.badge-text {
    font-weight: 600;
    font-size: 1rem;
}

.cta-button-primary {
    background: var(--accent-red);
    color: var(--white);
    border: none;
    padding: 1.2rem 3rem;
    border-radius: 50px;
    font-weight: 700;
    font-size: 1.1rem;
    cursor: pointer;
    transition: var(--transition);
    margin-top: var(--spacing-md);
    box-shadow: 0 10px 30px rgba(230, 57, 70, 0.4);
}

.cta-button-primary:hover {
    background: #d62839;
    transform: translateY(-3px);
    box-shadow: 0 15px 40px rgba(230, 57, 70, 0.5);
}

/* ===== SECTIONS ===== */
.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--navy-blue);
}

.section-subtitle {
    text-align: center;
    font-size: 1.3rem;
    margin-top: var(--spacing-lg);
    line-height: 1.8;
}

/* ===== PROBLEMA SECTION ===== */
.problema {
    background: var(--light-gray);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.problem-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    transition: var(--transition);
}

.problem-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.problem-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-red);
}

.problem-icon i {
    display: block;
}

.problem-card p {
    font-size: 1.05rem;
    color: var(--gray);
    line-height: 1.6;
}

/* ===== SOLUZIONE SECTION ===== */
.soluzione {
    background: linear-gradient(135deg, var(--navy-blue) 0%, var(--light-blue) 100%);
    color: var(--white);
}

.soluzione .section-title {
    color: var(--white);
}

.soluzione-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.big-paragraph {
    font-size: 1.5rem;
    margin: var(--spacing-md) 0;
    line-height: 1.8;
}

.benefits-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-lg);
}

.benefit-item {
    background: rgba(255, 255, 255, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: 10px;
    font-size: 1.2rem;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* ===== FUNZIONALITÀ SECTION ===== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.feature-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 15px;
    text-align: center;
    border: 2px solid var(--border-gray);
    transition: var(--transition);
}

.feature-card:hover {
    border-color: var(--light-blue);
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(74, 144, 226, 0.2);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
    color: var(--light-blue);
}

.feature-icon i {
    display: block;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: var(--spacing-xs);
    color: var(--navy-blue);
}

.feature-card p {
    color: var(--gray);
    font-size: 1rem;
}

/* ===== DIFFERENZA SECTION ===== */
.differenza {
    background: var(--light-gray);
}

.differenza-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.creator-box {
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    margin-top: var(--spacing-lg);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.creator-text p {
    font-size: 1.2rem;
    margin: var(--spacing-sm) 0;
    line-height: 1.8;
}

.highlight-text {
    color: var(--accent-red);
    font-weight: 600;
    margin-top: var(--spacing-md);
}

/* ===== PER CHI SECTION ===== */
.target-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.target-card {
    background: var(--white);
    padding: var(--spacing-md);
    border-radius: 15px;
    border: 2px solid var(--light-blue);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
}

.target-card:hover {
    background: var(--light-blue);
    color: var(--white);
    transform: translateX(5px);
}

.check-icon {
    font-size: 2rem;
    color: var(--accent-red);
    font-weight: bold;
}

.target-card:hover .check-icon {
    color: var(--white);
}

.target-card p {
    font-size: 1.05rem;
    font-weight: 500;
}

/* ===== LANCIO SECTION ===== */
.lancio {
    background: linear-gradient(135deg, var(--dark-navy) 0%, var(--navy-blue) 100%);
    color: var(--white);
}

.lancio .section-title {
    color: var(--white);
}

.lancio-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.lancio .big-paragraph {
    color: var(--white);
}

.lancio .highlight-text {
    color: var(--accent-red);
    font-size: 1.8rem;
    display: block;
    margin-top: var(--spacing-lg);
}

/* ===== CONTACT FORM SECTION ===== */
.contatto {
    background: var(--light-gray);
    padding: var(--spacing-xl) 0;
}

.form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background: var(--white);
    padding: var(--spacing-lg);
    border-radius: 20px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.form-subtitle {
    text-align: center;
    font-size: 1.2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--gray);
}

.form-note {
    text-align: center;
    font-size: 0.95rem;
    color: var(--gray);
    margin-bottom: var(--spacing-lg);
    font-style: italic;
}

.contact-form {
    margin-top: var(--spacing-lg);
}

.form-group {
    margin-bottom: var(--spacing-md);
}

.form-group input,
.form-group textarea {
    width: 100%;
    padding: 1rem 1.5rem;
    border: 2px solid var(--border-gray);
    border-radius: 10px;
    font-size: 1rem;
    font-family: var(--font-main);
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--light-blue);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.error-message {
    display: block;
    color: var(--accent-red);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    font-weight: 500;
}

.recaptcha-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-bottom: var(--spacing-md);
}

.recaptcha-wrapper .g-recaptcha {
    display: inline-block;
}

.contact-form .cta-button-primary {
    width: 100%;
    margin-top: var(--spacing-md);
}

.form-success {
    background: #d4edda;
    color: #155724;
    padding: var(--spacing-md);
    border-radius: 10px;
    text-align: center;
    margin-top: var(--spacing-md);
}

.success-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.form-error {
    background: #f8d7da;
    color: #721c24;
    padding: var(--spacing-md);
    border-radius: 10px;
    text-align: center;
    margin-top: var(--spacing-md);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--dark-navy);
    color: var(--white);
    padding: var(--spacing-lg) 0;
}

.footer-content {
    text-align: center;
}

.footer-logo img {
    height: 60px;
    width: auto;
    margin-bottom: var(--spacing-sm);
}

.footer-text {
    font-size: 1rem;
    margin: var(--spacing-sm) 0;
}

.footer-copyright {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: var(--spacing-sm);
}

.footer-credits {
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-sm);
    border-top: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-credits p {
    font-size: 0.85rem;
    opacity: 0.8;
}

.footer-credits a {
    color: var(--light-blue);
    text-decoration: none;
    transition: var(--transition);
}

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

.footer-credits .separator {
    margin: 0 0.5rem;
    opacity: 0.5;
}

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

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

.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .hero {
        padding-top: 180px;
    }

    .hero-logo img {
        height: 130px;
    }

    .hero-title {
        font-size: 2.2rem;
    }

    .big-text {
        font-size: 1.3rem;
    }

    .hero-description {
        font-size: 1rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .big-paragraph {
        font-size: 1.2rem;
    }

    .problems-grid,
    .features-grid,
    .target-grid {
        grid-template-columns: 1fr;
    }

    .logo img {
        height: 35px;
        max-width: 150px;
    }

    .cta-button-nav {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }

    .cta-button-primary {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

    .form-wrapper {
        padding: var(--spacing-md);
    }

    .footer-credits p {
        font-size: 0.8rem;
    }

    .footer-credits .separator {
        display: block;
        margin: 0.3rem 0;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 150px 0 60px;
    }

    .hero-logo img {
        height: 100px;
    }

    .nav-content {
        flex-direction: row;
        flex-wrap: wrap;
        justify-content: center;
        gap: 0.5rem;
    }

    .logo {
        flex: 0 0 100%;
        text-align: center;
        margin-bottom: 0.5rem;
    }

    .logo img {
        height: 30px;
        max-width: 130px;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .section {
        padding: var(--spacing-md) 0;
    }

    .footer-credits p {
        font-size: 0.75rem;
        line-height: 1.8;
    }

    .footer-credits a {
        display: inline-block;
    }
}

/* ===== LOADING STATE ===== */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 30px;
    height: 30px;
    border: 3px solid var(--white);
    border-top-color: transparent;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: translate(-50%, -50%) rotate(360deg);
    }
}