/* ============================================================
   PROOF CASES VARIATIONS — Proyectos vs Formación
   ------------------------------------------------------------
   2 estructuras COMPLETAMENTE diferentes
   ============================================================ */

/* ===== PROYECTOS — CAROUSEL HORIZONTAL ===== */
/* Primera sección: grid de 3 cards normal */
.proof-cases--3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-top: 32px;
}

.proof-case--project {
    padding: 32px 28px;
    background: var(--color-bg-alt);
    border-left: 4px solid transparent;
    border-radius: 12px;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.06);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.proof-case--project:nth-child(1) {
    border-left-color: #0066CC;
}

.proof-case--project:nth-child(2) {
    border-left-color: #ff8108;
}

.proof-case--project:nth-child(3) {
    border-left-color: rgba(0, 102, 204, 0.6);
}

.proof-case--project:hover {
    transform: translateX(4px);
    border-left-width: 6px;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

.proof-case-sector {
    font-size: 12px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-accent);
    margin: 0;
}

.proof-case-title {
    font-size: var(--text-2xl);
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-text-primary);
    margin: 0;
}

.proof-case-text {
    font-size: var(--text-sm);
    line-height: 1.65;
    color: var(--color-text-secondary);
    margin: 0;
    flex-grow: 1;
}

.proof-case-text strong {
    color: var(--color-text-primary);
    font-weight: 600;
    display: block;
    margin-top: 8px;
}

.proof-case-metric {
    font-size: var(--text-base);
    font-weight: 700;
    color: var(--color-highlight);
    background: linear-gradient(135deg,
        rgba(255, 129, 8, 0.1),
        rgba(255, 129, 8, 0.05));
    padding: 16px 20px;
    border-radius: 10px;
    border-left: 3px solid var(--color-highlight);
    margin-top: 8px;
}

@media (max-width: 1023px) {
    .proof-cases--3 {
        grid-template-columns: 1fr;
        gap: 20px;
    }
}

/* ===== FORMACIÓN — GRID ASIMÉTRICO CON RATINGS ===== */
/* Segunda sección: layout diferente */
.proof-cases-head + .proof-cases {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 32px;
}

/* Primera card ocupa 2 columnas (destacada) */
.proof-cases > .proof-case:first-child {
    grid-column: 1 / -1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 32px;
    padding: 40px;
    background: linear-gradient(135deg,
        rgba(0, 102, 204, 0.04) 0%,
        transparent 60%);
    border: 2px solid var(--color-border-light);
    border-radius: 16px;
    position: relative;
    overflow: hidden;
}

.proof-cases > .proof-case:first-child::before {
    content: '★';
    position: absolute;
    top: -20px;
    right: -20px;
    font-size: 120px;
    color: var(--color-accent);
    opacity: 0.03;
}

/* Cards normales (2-4) */
.proof-cases > .proof-case:not(:first-child) {
    padding: 32px 28px;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border-light);
    border-radius: 12px;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.proof-cases > .proof-case:not(:first-child):hover {
    transform: translateY(-4px);
    border-color: var(--color-accent);
    box-shadow: 0 16px 40px rgba(0, 102, 204, 0.1);
}

.proof-case-rating {
    font-size: 18px;
    font-weight: 700;
    color: var(--color-highlight);
    background: linear-gradient(135deg,
        rgba(255, 129, 8, 0.12),
        rgba(255, 129, 8, 0.06));
    padding: 8px 16px;
    border-radius: 20px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1px solid rgba(255, 129, 8, 0.2);
    margin-bottom: 8px;
    width: fit-content;
}

.proof-case-more {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-accent);
    font-size: var(--text-base);
    font-weight: 600;
    text-decoration: none;
    margin-top: auto;
    transition: gap 0.2s;
}

.proof-case-more:hover {
    gap: 12px;
    color: var(--color-highlight);
}

@media (max-width: 1023px) {
    .proof-cases-head + .proof-cases {
        grid-template-columns: 1fr;
    }

    .proof-cases > .proof-case:first-child {
        grid-column: 1;
        grid-template-columns: 1fr;
        padding: 32px 28px;
    }
}

/* ===== HEADINGS COMUNES ===== */
.proof-cases-head {
    margin-bottom: 32px;
}

.proof-cases-title {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    font-weight: 800;
    line-height: 1.2;
    color: var(--color-text-primary);
    margin: 0 0 16px 0;
    letter-spacing: -0.02em;
}

.proof-cases-intro {
    font-size: var(--text-lg);
    line-height: 1.6;
    color: var(--color-text-secondary);
    max-width: 800px;
    margin: 0;
}

.proof-cases-intro strong {
    color: var(--color-text-primary);
    font-weight: 700;
}