/**
 * Component Styles
 * Reusable UI components
 */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    border: none;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent);
    color: white;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-tertiary);
    border-color: var(--text-light);
}

.btn-white {
    background: white;
    color: var(--primary);
}

.btn-white:hover {
    background: var(--bg-secondary);
    transform: translateY(-1px);
}

/* Cards */
.card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 9999px;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge-primary {
    background: var(--accent-light);
    color: var(--accent);
}

.badge-success {
    background: #d1fae5;
    color: #059669;
}

.badge-warning {
    background: #fef3c7;
    color: #d97706;
}

.badge-info {
    background: #e0e7ff;
    color: #4f46e5;
}

.badge-danger {
    background: #fee2e2;
    color: #dc2626;
}

/* Tags */
.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
}

/* Tags inside cards - override margin */
.project-card .tags,
.course-card .tags,
.cert-card .tags,
.featured-card .tags {
    margin-top: 0;
}

.tag {
    padding: 0.25rem 0.75rem;
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    font-size: 0.8125rem;
    border-radius: var(--radius);
    font-weight: 500;
}

/* Links */
.link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.link:hover {
    color: var(--accent-hover);
    text-decoration: underline;
}

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
}

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-lg);
}

.stat-card {
    background: var(--bg-secondary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    text-align: center;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.stat-number {
    display: block;
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent);
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-top: 0.5rem;
}

.stat-sublabel {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
}

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

/* Project Cards */
.project-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

/* Featured Grid (Home Page) */
.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.featured-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    transition: var(--transition);
    min-height: 320px;
}

.featured-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

/* Bordi colorati per tipo - tutti con lo stesso stile */
.featured-card.featured-project {
    border-left: 4px solid var(--accent);
}

.featured-card.featured-course {
    border-left: 4px solid var(--success);
}

.featured-card.featured-cert {
    border-left: 4px solid var(--warning);
}

.featured-card.featured-education {
    border-left: 4px solid var(--primary);
}

.featured-card.featured-work {
    border-left: 4px solid var(--accent);
}

.featured-card.featured-upcoming {
    border-left: 4px dashed var(--warning);
    opacity: 0.9;
}

.featured-badge {
    margin-bottom: 0.25rem;
}

/* Struttura uniforme per tutti i tipi */
.featured-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.3;
}

.featured-subtitle {
    font-size: 0.875rem;
    color: var(--text-light);
}

.featured-description {
    color: var(--text-secondary);
    line-height: 1.6;
    font-size: 0.9375rem;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 12;
}

.featured-body {
    flex: 1;
}

.featured-footer {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

@media (max-width: 1024px) {
    .featured-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .featured-grid { grid-template-columns: 1fr; }
    .featured-card { min-height: auto; }
}

/* Project Card - con altezza fissa e footer ancorato */
.project-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: var(--space-lg);
    display: flex;
    flex-direction: column;
    gap: 1rem; /* Distanza minima tra elementi */
    transition: var(--transition);
    min-height: 500px; /* Altezza fissa */
}

.project-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: var(--accent);
    transform: translateY(-2px);
}

.project-badge {
    margin-bottom: 0.75rem;
}

.project-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.project-period {
    font-size: 0.875rem;
    color: var(--text-light);
}

.project-body {
    flex: 1; /* Riempie lo spazio disponibile */
}

.project-description {
    color: var(--text-secondary);
    line-height: 1.7;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 14;
}

.project-footer {
    margin-top: auto; /* Ancorato in fondo */
    padding-top: 1rem;
    border-top: 1px solid var(--border);
}

@media (max-width: 1024px) {
    .project-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .project-grid { grid-template-columns: 1fr; }
    .project-card { min-height: auto; } /* Su mobile altezza automatica */
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    margin-top: 2rem; /* Più spazio tra titolo e timeline */
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
    padding-left: 2rem;
    padding-bottom: 2rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-marker {
    position: absolute;
    left: -5px;
    top: 0;
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    border: 2px solid var(--bg-primary);
}

.timeline-content {
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
}

.timeline-date {
    display: block;
    font-size: 0.875rem;
    color: var(--text-light);
    margin-bottom: 0.5rem;
}

.timeline-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.25rem;
}

.timeline-subtitle {
    color: var(--text-secondary);
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* Timeline upcoming state */
.timeline-item.timeline-upcoming .timeline-marker {
    background: var(--warning);
    border-color: var(--bg-primary);
}

.timeline-item.timeline-upcoming .timeline-content {
    border-style: dashed;
    border-color: var(--warning);
    opacity: 0.9;
}

/* Work responsibilities */
.work-responsibilities {
    list-style: none;
    padding: 0;
    margin: 0;
}

.work-responsibilities li {
    position: relative;
    padding-left: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.work-responsibilities li:last-child {
    margin-bottom: 0;
}

.work-responsibilities li::before {
    content: '•';
    position: absolute;
    left: 0;
    color: var(--accent);
    font-weight: bold;
}

/* Language Cards - con barra ancorata in basso */
.language-card {
    display: flex;
    flex-direction: column;
    min-height: 160px;
}

.language-content {
    flex: 1;
    margin-bottom: 1rem;
}

/* Language Bars */
.language-bar {
    height: 8px;
    background: var(--bg-tertiary);
    border-radius: 4px;
    overflow: hidden;
    margin-top: auto;
}

.language-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent), var(--accent-hover));
    border-radius: 4px;
    transition: width 1s ease;
}

/* Interest Cards */
.interest-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.interest-card {
    text-align: center;
}

.interest-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.interest-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.interest-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

@media (max-width: 768px) {
    .interest-grid { grid-template-columns: 1fr; }
}

/* Course Cards - con altezza fissa e footer ancorato */
.courses-header {
    margin-bottom: var(--space-xl);
}

.courses-header h2 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.courses-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
}

.courses-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.course-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-md);
    border: 1px solid var(--border);
    transition: var(--transition);
    border-left: 4px solid var(--accent);
    display: flex;
    flex-direction: column;
    gap: 0.75rem; /* Distanza minima tra elementi */
    min-height: 340px; /* Altezza fissa */
}

.course-card.master {
    border-left-color: var(--success);
}

.course-card.bachelor {
    border-left-color: var(--accent);
}

.course-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.course-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
}

.course-header h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
}

.course-grade {
    font-weight: 700;
    color: var(--success);
    background: #d1fae5;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.875rem;
    flex-shrink: 0; /* Non si restringe */
}

.course-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 10;
}

.course-body {
    flex: 1;
}

.course-footer {
    margin-top: auto; /* Ancorato in fondo */
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

@media (max-width: 1024px) {
    .courses-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
    .courses-grid { grid-template-columns: 1fr; }
    .course-card { min-height: auto; } /* Su mobile altezza automatica */
}

/* Certification Cards - con altezza fissa e footer ancorato */
.certification-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.cert-card {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    gap: 0.75rem; /* Distanza minima tra elementi */
    min-height: 380px; /* Altezza fissa */
}

/* Rimosso stile featured per certificazioni nella pagina courses */
.cert-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.cert-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    flex-shrink: 0; /* Non si restringe */
    overflow: hidden;
}

/* Icone certificazione come immagini */
.cert-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* Fallback per icone CSS (se immagine non disponibile) */
.cert-icon.ec-council {
    background: #1a1a2e;
    color: #e94560;
}

.cert-icon.polimi {
    background: #002b49;
    color: white;
}

.cert-icon.udemy {
    background: #a435f0;
    color: white;
}

.cert-icon.unibs {
    background: #003366;
    color: white;
}

.cert-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
}

.cert-issuer {
    font-size: 0.875rem;
    color: var(--text-light);
}

.cert-description {
    color: var(--text-secondary);
    font-size: 0.9375rem;
    line-height: 1.6;
    overflow: hidden;
    display: -webkit-box;
    -webkit-box-orient: vertical;
    -webkit-line-clamp: 12;
}

.cert-body {
    flex: 1;
}

.cert-footer {
    margin-top: auto; /* Ancorato in fondo */
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
}

@media (max-width: 768px) {
    .certification-grid { grid-template-columns: 1fr; }
    .cert-card { min-height: auto; } /* Su mobile altezza automatica */
}

/* News Timeline */
.news-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
}

.news-timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, var(--accent) 0%, var(--border) 100%);
}

/* Year Marker on Timeline */
.news-year-marker {
    position: relative;
    padding-left: 2.5rem;
    padding-bottom: 1.5rem;
    padding-top: 0.5rem;
}

.news-year-marker:first-child {
    padding-top: 0;
}

.news-year-dot {
    position: absolute;
    left: -8px;
    top: 50%;
    transform: translateY(-50%);
    width: 18px;
    height: 18px;
    background: var(--accent);
    border-radius: 50%;
    border: 4px solid var(--bg-primary);
    box-shadow: 0 0 0 3px var(--accent);
}

.news-year-label {
    display: inline-block;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--accent);
    background: var(--bg-primary);
    padding: 0.25rem 0;
}

/* News Item */
.news-item {
    position: relative;
    padding-left: 2.5rem;
    padding-bottom: 1.5rem;
}

.news-item:last-child {
    padding-bottom: 0;
}

.news-marker {
    position: absolute;
    left: -5px;
    top: 1.5rem;
    width: 12px;
    height: 12px;
    background: var(--bg-primary);
    border: 3px solid var(--accent);
    border-radius: 50%;
}

.news-content {
    background: var(--bg-primary);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: var(--transition);
}

.news-content:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--accent);
}

.news-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.news-description {
    color: var(--text-secondary);
    line-height: 1.7;
}

@media (max-width: 640px) {
    .news-timeline::before {
        left: 6px;
    }
    
    .news-year-dot {
        left: -2px;
    }
    
    .news-marker {
        left: 1px;
    }
    
    .news-item,
    .news-year-marker {
        padding-left: 2.5rem;
    }
}

/* Footer */
.footer {
    background: var(--primary);
    color: white;
    padding: var(--space-xl) 0;
    margin-top: auto;
}

.footer-content {
    display: flex;
    justify-content: flex-end; /* Allineato a destra */
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.footer-text {
    color: #94a3b8;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

.footer-link {
    color: #94a3b8;
    text-decoration: none;
    transition: var(--transition);
}

.footer-link:hover {
    color: white;
}

@media (max-width: 640px) {
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}

/* ---------- Modern cards & controls (2026 refresh) ---------- */

/* Buttons: slightly more premium + consistent hover */
.btn {
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06);
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 30px rgba(37, 99, 235, 0.20);
}

.btn-secondary {
    background: rgba(248, 250, 252, 0.75);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 22px rgba(15, 23, 42, 0.08);
}

/* "Glass" surface for all major cards (keeps structure, just looks modern) */
.card,
.stat-card,
.featured-card,
.project-card,
.course-card,
.cert-card,
.timeline-content,
.news-content,
.location-box {
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(226, 232, 240, 0.9);
}

/* Nicer hover: lift + softer shadow + subtle accent ring */
.featured-card:hover,
.project-card:hover,
.course-card:hover,
.cert-card:hover,
.stat-card:hover,
.timeline-content:hover,
.news-content:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 40px rgba(15, 23, 42, 0.10);
    border-color: rgba(59, 130, 246, 0.35);
}

/* Make tags a touch more "pill" and airy */
.tag {
    background: rgba(241, 245, 249, 0.9);
    border: 1px solid rgba(226, 232, 240, 0.9);
    border-radius: 9999px;
}

/* Hugging Face material link icon */
.hf-link {
    margin-left: auto;
    font-size: 1.1rem;
    text-decoration: none;
    transition: transform 0.2s ease, opacity 0.2s ease;
    display: inline-flex;
    align-items: center;
}
.hf-link:hover {
    text-decoration: none;
    transform: scale(1.2);
    opacity: 0.8;
}
.course-footer,
.cert-footer,
.featured-footer {
    display: flex;
    align-items: center;
}


.nav-home-icon {
    height: auto;
    width: clamp(20px, 1.5vw, 26px);
    display: block;
}