/**
 * ============================================================================
 * Aitech Cards CSS
 * ============================================================================
 * Version: 1.0.0
 * Date: 23 Feb 2026
 * Branch: restyling
 *
 * Modern card variants using Design System variables
 * ============================================================================
 */

/* ============================================================================
   BASE CARD (già definita in design-system.css, qui estensioni)
   ============================================================================ */

/* Card con bordo accent */
.card-accent {
    border-top: 4px solid var(--color-primary-500);
}

.card-success {
    border-top: 4px solid var(--color-success);
}

/* ============================================================================
   PROJECT CARD
   ============================================================================ */

.card-project {
    position: relative;
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card-project:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-project-image {
    position: relative;
    width: 100%;
    height: 240px;
    overflow: hidden;
    background-color: var(--color-secondary-100);
}

.card-project-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 400ms var(--ease-out);
}

.card-project:hover .card-project-image img {
    transform: scale(1.05);
}

.card-project-badge {
    position: absolute;
    top: var(--spacing-4);
    right: var(--spacing-4);
    padding: var(--spacing-1) var(--spacing-3);
    background-color: var(--color-accent-500);  /* Orange - Energy & action */
    color: var(--color-white);
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-project-content {
    padding: var(--spacing-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-project-category {
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    color: var(--color-primary-500);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-2);
}

.card-project-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
    line-height: var(--line-height-tight);
}

.card-project-description {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-4);
    flex: 1;
}

.card-project-meta {
    display: flex;
    gap: var(--spacing-4);
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--color-secondary-200);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

.card-project-meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-1);
}

.card-project-footer {
    padding: var(--spacing-4) var(--spacing-6);
    background-color: var(--color-secondary-50);
    border-top: 1px solid var(--color-secondary-200);
}

.card-project-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--color-primary-500);
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: var(--transition-base);
}

.card-project-link:hover {
    color: var(--color-primary-700);
    gap: var(--spacing-3);
}

.card-project-link::after {
    content: '→';
    font-size: var(--font-size-lg);
    transition: var(--transition-base);
}

/* ============================================================================
   TEAM CARD
   ============================================================================ */

.card-team {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    text-align: center;
    height: 100%;
}

.card-team:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-team-image {
    position: relative;
    width: 100%;
    height: 280px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--color-primary-100), var(--color-secondary-100));
}

.card-team-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-base);
}

.card-team:hover .card-team-image img {
    transform: scale(1.05);
}

.card-team-content {
    padding: var(--spacing-6);
}

.card-team-name {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-1);
}

.card-team-role {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-primary-500);
    margin-bottom: var(--spacing-4);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-team-bio {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-4);
}

.card-team-social {
    display: flex;
    justify-content: center;
    gap: var(--spacing-2);
}

.card-team-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background-color: var(--color-secondary-100);
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
    text-decoration: none;
    transition: var(--transition-base);
}

.card-team-social a:hover {
    background-color: var(--color-primary-500);
    color: var(--color-white);
    transform: translateY(-2px);
}

/* ============================================================================
   SERVICE CARD
   ============================================================================ */

.card-service {
    background: var(--color-white);
    border: 2px solid var(--color-secondary-200);
    border-radius: var(--radius-lg);
    padding: var(--spacing-8);
    transition: var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card-service:hover {
    border-color: var(--color-primary-500);
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-service-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-700));
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-6);
    font-size: var(--font-size-4xl);
    color: var(--color-white);
    transition: var(--transition-base);
}

.card-service:hover .card-service-icon {
    transform: scale(1.1) rotate(-5deg);
}

.card-service-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
    line-height: var(--line-height-tight);
}

.card-service-description {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
    flex: 1;
}

.card-service-features {
    list-style: none;
    padding: 0;
    margin: 0 0 var(--spacing-6) 0;
}

.card-service-features li {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-2);
    padding: var(--spacing-2) 0;
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.card-service-features li::before {
    content: '✓';
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-success);
    color: var(--color-white);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
}

.card-service-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-2);
    color: var(--color-primary-500);
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: var(--transition-base);
}

.card-service-link:hover {
    color: var(--color-primary-700);
    gap: var(--spacing-3);
}

.card-service-link::after {
    content: '→';
    font-size: var(--font-size-lg);
    transition: var(--transition-base);
}

/* ============================================================================
   STAT CARD
   ============================================================================ */

.card-stat {
    background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-700));
    border-radius: var(--radius-lg);
    padding: var(--spacing-8);
    color: var(--color-white);
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
}

.card-stat:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-stat-value {
    font-family: var(--font-primary);
    font-size: var(--font-size-6xl);
    font-weight: var(--font-weight-extrabold);
    line-height: 1;
    margin-bottom: var(--spacing-2);
}

.card-stat-label {
    font-family: var(--font-primary);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-medium);
    opacity: 0.9;
}

.card-stat-icon {
    font-size: var(--font-size-4xl);
    margin-bottom: var(--spacing-4);
    opacity: 0.8;
}

/* Stat card variants */
.card-stat.variant-success {
    background: linear-gradient(135deg, var(--color-success), var(--color-accent-600));
}

.card-stat.variant-info {
    background: linear-gradient(135deg, var(--color-info), #2563eb);
}

.card-stat.variant-secondary {
    background: linear-gradient(135deg, var(--color-secondary-700), var(--color-secondary-900));
}

/* ============================================================================
   TESTIMONIAL CARD
   ============================================================================ */

.card-testimonial {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-8);
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
}

.card-testimonial::before {
    content: '"';
    position: absolute;
    top: var(--spacing-4);
    left: var(--spacing-6);
    font-size: 80px;
    font-family: Georgia, serif;
    color: var(--color-primary-100);
    line-height: 1;
}

.card-testimonial:hover {
    box-shadow: var(--shadow-xl);
}

.card-testimonial-content {
    position: relative;
    z-index: 1;
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-style: italic;
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-6);
}

.card-testimonial-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-4);
}

.card-testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-full);
    overflow: hidden;
}

.card-testimonial-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card-testimonial-info {
    flex: 1;
}

.card-testimonial-name {
    font-family: var(--font-primary);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-1);
}

.card-testimonial-role {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    color: var(--color-text-tertiary);
}

/* ============================================================================
   BLOG/NEWS CARD
   ============================================================================ */

.card-blog {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card-blog:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-blog-image {
    width: 100%;
    height: 220px;
    overflow: hidden;
    position: relative;
}

.card-blog-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-base);
}

.card-blog:hover .card-blog-image img {
    transform: scale(1.05);
}

.card-blog-date {
    position: absolute;
    top: var(--spacing-4);
    left: var(--spacing-4);
    padding: var(--spacing-2) var(--spacing-3);
    background-color: var(--color-white);
    border-radius: var(--radius-base);
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    box-shadow: var(--shadow-sm);
}

.card-blog-content {
    padding: var(--spacing-6);
    flex: 1;
    display: flex;
    flex-direction: column;
}

.card-blog-category {
    display: inline-block;
    padding: var(--spacing-1) var(--spacing-3);
    background-color: var(--color-primary-100);
    color: var(--color-primary-700);
    font-family: var(--font-primary);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-3);
    width: fit-content;
}

.card-blog-title {
    font-family: var(--font-primary);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-3);
    line-height: var(--line-height-tight);
}

.card-blog-excerpt {
    font-family: var(--font-primary);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: var(--line-height-relaxed);
    margin-bottom: var(--spacing-4);
    flex: 1;
}

.card-blog-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-4);
    border-top: 1px solid var(--color-secondary-200);
    font-size: var(--font-size-xs);
    color: var(--color-text-tertiary);
}

.card-blog-author {
    display: flex;
    align-items: center;
    gap: var(--spacing-2);
}

.card-blog-link {
    color: var(--color-primary-500);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: var(--transition-base);
}

.card-blog-link:hover {
    color: var(--color-primary-700);
}

/* ============================================================================
   GRID LAYOUTS
   ============================================================================ */

.cards-grid {
    display: grid;
    gap: var(--spacing-8);
}

.cards-grid.cols-2 {
    grid-template-columns: repeat(2, 1fr);
}

.cards-grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
}

.cards-grid.cols-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

@media (max-width: 1024px) {
    .cards-grid.cols-4 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .cards-grid.cols-3,
    .cards-grid.cols-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .card-project-image,
    .card-team-image {
        height: 200px;
    }
}

@media (max-width: 640px) {
    .cards-grid.cols-2,
    .cards-grid.cols-3,
    .cards-grid.cols-4 {
        grid-template-columns: 1fr;
    }

    .card-service {
        padding: var(--spacing-6);
    }
}

/* ============================================================================
   DARK MODE
   ============================================================================ */

@media (prefers-color-scheme: dark) {
    .card-project,
    .card-team,
    .card-service,
    .card-blog,
    .card-testimonial {
        background-color: var(--color-bg-secondary);
        border-color: var(--color-border-primary);
    }

    .card-project-footer,
    .card-service {
        background-color: var(--color-bg-secondary);
    }
}