/* ============================================
   Solution Layouts — Shared + Layout A & B
   ============================================ */

/* ─── Shared: Light section (dark text on light bg) ─── */
.section--light {
    background: var(--bg-contrast);
    color: #1a1a2e;
}

.section--light .section__label {
    color: #555570;
}

.section--light .section__title {
    color: #1a1a2e;
}

.section--light .section__subtitle {
    color: #555570;
}

.section--light .content-block p,
.section--light .content-block li {
    color: #555570;
}

.section--light .content-block h2,
.section--light .content-block h3 {
    color: #1a1a2e;
}

.section--light .content-block li::before {
    color: var(--accent);
}

.section--light strong {
    color: #1a1a2e;
}

.section--light .timeline::before {
    background: rgba(26, 26, 46, 0.15);
}

.section--light .timeline__dot {
    background: var(--accent);
    border-color: var(--bg-contrast);
}

.section--light .timeline__step {
    color: #555570;
}

.section--light .timeline__title {
    color: #1a1a2e;
}

.section--light .timeline__text {
    color: #555570;
}

/* ─── Shared: Problem intro (light section, no card) ─── */
.problem-intro {
    max-width: var(--max-width-narrow);
}

.problem-intro p {
    font-size: var(--text-lg);
    line-height: 1.75;
    color: #555570;
}

/* ─── Shared: Section background image (reusable) ─── */
.section--bg {
    position: relative;
    overflow: hidden;
}

.section--bg__img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.12;
    pointer-events: none;
    z-index: 0;
}

.section--bg__overlay {
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 1;
}

.section--bg__overlay--light {
    background: linear-gradient(90deg, rgba(245, 245, 250, 0.95) 0%, rgba(245, 245, 250, 0.85) 55%, transparent 100%);
}

.section--bg__overlay--dark {
    background: linear-gradient(180deg, rgba(10, 14, 26, 0.6) 0%, rgba(10, 14, 26, 0.85) 100%);
}

.section--bg > .container {
    position: relative;
    z-index: 2;
}

/* ─── Shared: Hero background image (always dark regardless of theme) ─── */
.hero--bg {
    position: relative;
    overflow: hidden;
    background: #0a0e1a;
    color: #f0f0f5;
}
.hero--bg h1,
.hero--bg h2,
.hero--bg h3 { color: #f0f0f5; }
.hero--bg p { color: #8a8fa8; }

.hero--bg__img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.12;
    pointer-events: none;
    z-index: 0;
}

.hero--bg__overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(10, 14, 26, 0.4) 0%, #0a0e1a 100%);
    pointer-events: none;
    z-index: 1;
}

/* ─── Shared: Hero breadcrumb white ─── */
.hero--bg .breadcrumb,
.hero--bg .breadcrumb a,
.hero--bg .breadcrumb__sep {
    color: rgba(255, 255, 255, 0.7);
}

.hero--bg .breadcrumb a:hover {
    color: #fff;
}

/* ─── Shared: Hero tags ─── */
.hero__tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    margin-top: var(--space-lg);
}

/* ─── Shared: Image placeholder ─── */
.img-placeholder {
    width: 100%;
    height: 220px;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-card) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    border: 1px solid var(--border-subtle);
}

.img-placeholder i {
    font-size: 2.5rem;
    color: var(--text-muted);
    opacity: 0.5;
}

.section--light .img-placeholder {
    background: linear-gradient(135deg, #e8e8f0 0%, #f5f5fa 100%);
    border-color: #e0e0e8;
}

.section--light .img-placeholder i {
    color: #999;
}

/* ─── Shared: Lucide icon sizing ─── */
.card__icon [data-lucide],
.card__icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent);
    stroke-width: 1.75;
}

.card__link [data-lucide],
.card__link svg {
    width: 14px;
    height: 14px;
}

/* ═══════════════════════════════════════════
   LAYOUT A: Editorial Narrative
   ═══════════════════════════════════════════ */

/* ─── A: Challenge highlight callout ─── */
.content-block--highlight blockquote,
.content-block--highlight .callout {
    border-left: 3px solid var(--accent);
    padding-left: var(--space-lg);
    margin: var(--space-xl) 0;
    color: var(--text-secondary);
    font-style: italic;
}

/* ─── A: Result items (grid--2) ─── */
.result-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-lg);
    padding: var(--space-xl) 0;
    border-bottom: 1px solid var(--border-subtle);
}

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

.result-item__icon {
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: var(--accent-dim);
}

.result-item__icon i {
    font-size: 1.1rem;
    color: var(--accent);
}
html[data-theme="light"] .result-item__icon i {
    color: var(--fg1);
}

.result-item__text {
    font-size: var(--text-base);
    color: var(--text-secondary);
    line-height: 1.65;
}

.result-item__text strong {
    color: var(--accent);
    font-weight: var(--font-semibold);
}
html[data-theme="light"] .result-item__text strong {
    color: var(--fg1);
    background: #c8ff00;
    padding: 0 0.25em;
    border-radius: 3px;
}

/* ─── A: Use case cards ─── */
.usecase {
    background: #fff;
    border: 1px solid #e5e5ed;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-2xl);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.usecase:last-child {
    margin-bottom: 0;
}

.usecase:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(10, 14, 26, 0.1);
}

.usecase__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-xl) var(--space-2xl);
    border-bottom: 1px solid #e5e5ed;
    background: #fafafd;
}

.usecase__title {
    font-size: var(--text-xl);
    font-weight: var(--font-bold);
    color: #1a1a2e;
}

.usecase__badges {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.usecase__badge {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.2rem 0.65rem;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    border-radius: var(--radius-full);
    background: rgba(23, 153, 218, 0.08);
    color: var(--accent-blue);
    border: 1px solid rgba(23, 153, 218, 0.15);
}

.usecase__body {
    display: grid;
    grid-template-columns: 1fr 280px;
    gap: var(--space-2xl);
    padding: var(--space-2xl);
}

.usecase__content {
    font-size: var(--text-base);
    color: #555570;
    line-height: 1.75;
}

.usecase__content strong {
    color: #1a1a2e;
    font-weight: var(--font-semibold);
}

.usecase__image {
    height: 220px;
    overflow: hidden;
    border-radius: var(--radius-lg);
}

.usecase__img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* ═══════════════════════════════════════════
   LAYOUT B: Card Dashboard
   ═══════════════════════════════════════════ */

/* ─── B: Hero stats bar ─── */
.hero-stats {
    display: flex;
    justify-content: center;
    gap: var(--space-3xl);
    padding: var(--space-2xl) 0;
}

.hero-stat {
    text-align: center;
}

.hero-stat__number {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: var(--font-extrabold);
    color: var(--accent);
    line-height: 1;
    margin-bottom: var(--space-xs);
}

.hero-stat__label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    max-width: 180px;
    line-height: 1.4;
}

/* ─── B: Challenge cards ─── */
.challenge-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    transition: all var(--transition-base);
}

.challenge-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-medium);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.challenge-card__icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: rgba(239, 68, 68, 0.1);
    margin-bottom: var(--space-lg);
}

.challenge-card__icon i {
    font-size: 1.3rem;
    color: #ef4444;
}

.challenge-card__title {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--text-primary);
    margin-bottom: var(--space-sm);
}

.challenge-card__text {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.65;
}

/* ─── B: Tech strip ─── */
.tech-strip {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    justify-content: center;
}

.tech-chip {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--text-primary);
    text-decoration: none;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.tech-chip:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-1px);
}

.tech-chip__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
}

/* ─── B: Stat cards (grid--3) ─── */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    text-align: center;
    transition: all var(--transition-base);
}

.stat-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-medium);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.stat-card__number {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: var(--font-extrabold);
    color: var(--accent);
    margin-bottom: var(--space-sm);
    line-height: 1.1;
}

.stat-card__label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ─── B: Use case cards (light section) ─── */
.usecase-card {
    background: #fff;
    border: 1px solid #e5e5ed;
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-2xl);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.usecase-card:last-child {
    margin-bottom: 0;
}

.usecase-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(10, 14, 26, 0.1);
}

.usecase-card__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-lg) var(--space-2xl);
    background: #fafafd;
    border-bottom: 1px solid #e5e5ed;
}

.usecase-card__title {
    font-size: var(--text-lg);
    font-weight: var(--font-bold);
    color: #1a1a2e;
}

.usecase-card__badges {
    display: flex;
    gap: var(--space-sm);
    flex-wrap: wrap;
}

.usecase-card__body {
    padding: var(--space-xl) var(--space-2xl);
}

.usecase-card__text {
    font-size: var(--text-base);
    color: #555570;
    line-height: 1.75;
}

.usecase-card__text strong {
    color: #1a1a2e;
    font-weight: var(--font-semibold);
}

.usecase-card__results {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
    padding: 0 var(--space-2xl) var(--space-xl);
}

.usecase-card__result {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    padding: 0.3rem 0.75rem;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    border-radius: var(--radius-full);
    background: rgba(34, 197, 94, 0.08);
    color: #16a34a;
    border: 1px solid rgba(34, 197, 94, 0.15);
    font-weight: var(--font-medium);
}

/* ─── B: Phase cards (light section, extends method-card pattern) ─── */
.section--light .method-card {
    background: #fff;
    border: 1px solid #e5e5ed;
    border-radius: var(--radius-lg);
    padding: var(--space-2xl) var(--space-xl);
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.section--light .method-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(10, 14, 26, 0.08);
}

.section--light .method-card__number {
    color: var(--accent-blue);
}

.section--light .method-card h4 {
    color: #1a1a2e;
}

.section--light .method-card p {
    color: #555570;
}

/* ─── Shared: "Scopri di più" section ─── */
.discover {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: var(--space-2xl);
    padding: var(--space-xl) var(--space-2xl);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: inherit;
    transition: border-color var(--transition-base),
                background var(--transition-base),
                transform var(--transition-base);
}

.discover:hover {
    border-color: var(--accent);
    background: var(--bg-card-hover);
    color: inherit;
    transform: translateY(-2px);
}

.discover:hover .discover__arrow {
    transform: translateX(4px);
}

.discover__body {
    min-width: 0;
}

.discover__label {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--accent-light);
    margin-bottom: var(--space-sm);
}

.discover__text {
    font-size: var(--text-lg);
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.discover__action {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1rem;
    background: var(--accent);
    border-radius: var(--radius-full);
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: #0d0f18;
    white-space: nowrap;
    transition: background var(--transition-base);
}

.discover:hover .discover__action {
    background: var(--accent-light);
}

.discover__arrow {
    display: inline-block;
    transition: transform var(--transition-base);
}

html[data-theme="light"] .discover__label {
    color: var(--fg2);
}
html[data-theme="light"] .discover:hover {
    border-color: var(--fg1);
}
html[data-theme="light"] .discover:hover .discover__label {
    color: var(--fg1);
}

@media (max-width: 720px) {
    .discover {
        grid-template-columns: 1fr;
        gap: var(--space-md);
        padding: var(--space-lg);
    }
    .discover__text {
        font-size: var(--text-base);
    }
}

/* ═══════════════════════════════════════════
   Responsive
   ═══════════════════════════════════════════ */
@media (max-width: 1024px) {
    .usecase__body {
        grid-template-columns: 1fr;
    }

    .usecase__image {
        display: none;
    }

    .hero-stats {
        gap: var(--space-2xl);
    }
}

@media (max-width: 768px) {
    .hero-stats {
        flex-direction: column;
        align-items: center;
        gap: var(--space-xl);
    }

    .hero-stat__number {
        font-size: var(--text-2xl);
    }

    .hero-stat__label {
        max-width: none;
    }

    .usecase__body {
        grid-template-columns: 1fr;
        padding: var(--space-xl);
    }

    .usecase__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-md);
        padding: var(--space-lg);
    }

    .usecase-card__header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-sm);
        padding: var(--space-lg);
    }

    .usecase-card__body {
        padding: var(--space-lg);
    }

    .usecase-card__results {
        padding: 0 var(--space-lg) var(--space-lg);
    }

    .result-item {
        gap: var(--space-md);
    }

    .stat-card__number {
        font-size: var(--text-2xl);
    }

    .img-placeholder {
        height: 160px;
    }

    .tech-strip {
        justify-content: flex-start;
    }
}