/* Stili specifici per la pagina R&D */

/* Hero Section R&D */
.rd-hero {
    padding: 10rem 5% 8rem;
    background: var(--color-bg-dark);
    color: var(--color-text-light);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.rd-hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        radial-gradient(circle at 15% 25%, hsla(217, 89%, 61%, 0.2), transparent 40%),
        radial-gradient(circle at 85% 75%, hsla(260, 80%, 70%, 0.2), transparent 40%);
    background-size: 200% 200%;
    animation: rd-hero-glow 20s linear infinite alternate;
    z-index: 0;
}

@keyframes rd-hero-glow {
    0% { background-position: 0% 50%; }
    100% { background-position: 100% 50%; }
}

.rd-hero__content {
    position: relative;
    z-index: 1;
}

.rd-hero__title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.03em;
    background: linear-gradient(90deg, var(--color-text-light), var(--color-gray-300));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.rd-hero__subtitle {
    font-size: clamp(1rem, 2.5vw, 1.25rem);
    max-width: 750px;
    margin: 0 auto;
    color: var(--color-gray-300);
    line-height: 1.6;
}

/* Sezione Articoli */
.articles {
    background-color: var(--color-bg);
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.article-counter {
    margin-top: 1.5rem;
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    background-color: var(--color-bg-card);
    padding: 0.5rem 1rem;
    border-radius: 99px;
    border: 1px solid var(--color-border);
    display: inline-block;
    transition: all 0.3s ease;
}

.dark .article-counter {
    background-color: var(--color-bg-card-dark);
}

/* Filtri Categoria */
.filter-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.filter-btn {
    padding: 0.6rem 1.2rem;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 99px;
    border: 1px solid var(--color-border);
    background-color: var(--color-bg-card);
    color: var(--color-text-secondary);
    box-shadow: 0 2px 5px rgba(0,0,0,0.05);
    cursor: pointer;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 12px -2px rgba(var(--color-primary-rgb), 0.25);
    background-color: var(--color-bg);
    color: var(--color-text);
}

.dark .filter-btn:hover {
    background-color: rgba(var(--color-primary-rgb), 0.15);
    color: var(--color-text-light);
}

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

/* Classe per nascondere gli articoli con animazione */
.article-card.hide {
    transform: scale(0.9);
    opacity: 0;
    pointer-events: none;
    height: 0;
    margin: 0;
    padding: 0;
    border: none;
    overflow: hidden;
}


.article-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

.article-card {
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--color-border);
    transition: transform 0.4s ease, opacity 0.4s ease, box-shadow 0.3s ease, height 0.4s ease, margin 0.4s ease, padding 0.4s ease;
}

.article-card:hover {
    transform: translateY(-8px) scale(1.02);
    box-shadow: var(--shadow-glow-primary);
}

.dark .article-card:hover {
    box-shadow: var(--shadow-glow-primary);
}

.article-card__image-link {
    display: block;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}

.article-card__image {
    width: 100%;
    height: 100%;
    object-fit: contain;
    padding: var(--space-4); /* Aggiunge un po' di spazio attorno al logo */
    transition: transform 0.4s ease;
}

.article-card:hover .article-card__image {
    transform: scale(1.05);
}

.article-card__content {
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.article-card__content .work-in-progress {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-secondary);
    margin: auto; /* Centra verticalmente e orizzontalmente */
    text-align: center;
    animation: pulse-text 2s infinite ease-in-out;
}

@keyframes pulse-text {
    0% {
        opacity: 0.5;
        transform: scale(0.98);
    }
    50% {
        opacity: 1;
        transform: scale(1);
    }
    100% {
        opacity: 0.5;
        transform: scale(0.98);
    }
}

.article-card__tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.article-card__tags .tag {
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 99px;
    background-color: var(--color-primary-light);
    color: var(--color-primary);
    text-transform: uppercase;
}

.dark .article-card__tags .tag {
    background-color: rgba(var(--color-primary-rgb), 0.15);
}

.article-card__title {
    font-size: 1.3rem;
    font-weight: 700;
    line-height: 1.4;
    margin-bottom: 0.75rem;
    color: var(--color-text);
}

.article-card__desc {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
    flex-grow: 1;
    margin-bottom: 1.5rem;
}

.article-card__link {
    font-weight: 600;
    color: var(--color-primary);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-top: auto;
}

.article-card__link::after {
    content: '→';
    transition: transform 0.2s ease;
}

.article-card__link:hover::after {
    transform: translateX(4px);
}

/* Sezione Team */
.team {
    background-color: var(--color-bg-dark);
    padding-top: 6rem;
    padding-bottom: 6rem;
}

.team .section__header h2 {
    color: var(--color-text-light);
}

.team .section__header p {
    color: var(--color-gray-300);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.team-card {
    background-color: var(--color-bg-card-dark);
    border-radius: var(--border-radius-lg);
    padding: 2rem;
    text-align: center;
    border: 1px solid var(--color-border-dark);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.team-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 15px 30px -5px rgba(0, 0, 0, 0.2);
}

.team-card__avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    margin: 0 auto 1.5rem;
    overflow: hidden;
    border: 3px solid var(--color-primary);
    box-shadow: 0 0 15px rgba(var(--color-primary-rgb), 0.5);
}

.team-card__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.team-card__name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-light);
    margin-bottom: 0.5rem;
}

.team-card__role {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-primary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.team-card__bio {
    font-size: 0.95rem;
    color: var(--color-gray-300);
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.team-card__socials {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.team-card__socials a {
    color: var(--color-gray-300);
    font-size: 1.25rem;
    transition: color 0.3s ease, transform 0.3s ease;
}

.team-card__socials a:hover {
    color: var(--color-primary);
    transform: scale(1.1);
}

/* Layout per la sezione Numeri */
.numbers-content-wrapper {
    display: flex;
    flex-direction: column; /* Layout a colonna di default per mobile/tablet */
    gap: 2.5rem;
    align-items: center;
}

@media (min-width: 1024px) {
    .numbers-content-wrapper {
        flex-direction: row; /* Layout affiancato su desktop */
        align-items: flex-start; /* Allinea gli elementi in alto */
        gap: 3rem;
    }

    .numbers-content-wrapper > .hero__card {
        flex: 0 0 400px; /* Larghezza fissa per la card delle statistiche */
        margin-top: 0;
    }
}

/* Stili per la sezione Numeri e Grafico */
.numbers .chart-container {
    margin-top: 5rem;
    padding: 2rem;
    background-color: var(--color-bg-card);
    border-radius: var(--border-radius-lg);
    border: 1px solid var(--color-border);
    box-shadow: 0 8px 25px -10px rgba(0,0,0,0.05);
}
@media (min-width: 1024px) {
    .numbers .chart-container {
        margin-top: 0; /* Rimuove il margine superiore su desktop */
        flex: 1; /* Occupa lo spazio rimanente */
    }
}

.dark .numbers .chart-container {
    background-color: var(--color-bg-card-dark);
    border-color: var(--color-border-dark);
    box-shadow: 0 8px 25px -10px rgba(0,0,0,0.1);
}

.numbers .chart-title {
    font-size: 1.25rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 2rem;
    color: var(--color-text);
}

.dark .numbers .chart-title {
    color: var(--color-text-light);
}