/* ============================================================
   CHALLENGES.CSS — Sekcja "Znasz te wyzwania?"
   ============================================================ */

.challenges {
    padding: var(--space-24) 0;
    background-color: var(--color-slate-50);
    position: relative;
    overflow: hidden;
}

/* Kształty tła (Light Theme) */
.challenges::before {
    content: '';
    position: absolute;
    top: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    border-radius: 50%;
    z-index: 1;
    pointer-events: none;
}

.challenges::after {
    content: '';
    position: absolute;
    bottom: 50px;
    right: 50px;
    width: 80px;
    height: 80px;
    border: 3px solid rgba(16, 185, 129, 0.05); /* zielony akcent, niski kontrast */
    border-radius: var(--radius-xl);
    transform: rotate(15deg);
    z-index: 1;
    pointer-events: none;
}

.challenges__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    position: relative;
    z-index: 2;
}

.challenges__header {
    text-align: center;
    max-width: 720px;
    margin: 0 auto var(--space-16);
}

.challenges__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--space-6);
}

/* --- Karta wyzwania --- */

.challenge-card {
    background: var(--color-white);
    padding: var(--space-8);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-slate-200);
    transition: var(--transition-base);
    display: flex;
    flex-direction: column;
}

.challenge-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-elevated);
    border-color: var(--color-primary-light);
}

.challenge-card__tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    background: var(--color-blue-50);
    color: var(--color-primary);
    font-size: var(--text-xs);
    font-weight: var(--font-bold);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-5);
    align-self: center;
}

.challenge-card__tag svg {
    flex-shrink: 0;
}

.challenge-card h3 {
    font-size: var(--text-xl);
    margin-bottom: var(--space-4);
    color: var(--color-slate-950);
    text-align: center;
}

.challenge-card p {
    font-size: var(--text-sm);
    color: var(--color-slate-500);
    line-height: 1.6;
    margin-bottom: 0;
    flex-grow: 1;
    text-align: center;
}