/* ============================================================
   LIBRARY.CSS — Biblioteka Procesów (zamiast Portfolio)
   ============================================================ */

.library {
    padding: var(--space-20) 0;
    background-color: var(--color-slate-50);
}

.library__container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

.library__header {
    text-align: center;
    max-width: 640px;
    margin: 0 auto var(--space-12);
}

.library__header h2 {
    margin-bottom: var(--space-4);
}

/* --- Filtry kategorii --- */

.library__filters {
    display: flex;
    gap: var(--space-3);
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: var(--space-10);
}

.library__filter-btn {
    padding: var(--space-2) var(--space-5);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-slate-500);
    background-color: var(--color-white);
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition:
        color var(--transition-fast),
        background-color var(--transition-fast),
        border-color var(--transition-fast);
}

.library__filter-btn:hover,
.library__filter-btn.active {
    color: var(--color-white);
    background-color: var(--color-primary);
    border-color: var(--color-primary);
}

/* --- Grid wideo --- */

.library__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    margin-bottom: var(--space-16);
}

/* --- Karta procesu (wideo) --- */

.process-card {
    background-color: var(--color-white);
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: box-shadow var(--transition-base), transform var(--transition-base);
}

.process-card:hover {
    box-shadow: var(--shadow-elevated);
    transform: translateY(-3px);
}

/* Placeholder wideo (zastępowany przez iframe po kliknięciu) */
.process-card__video-wrapper,
.process-card__image-wrapper {
    position: relative;
    aspect-ratio: 16 / 9;
    background-color: var(--color-slate-950);
    overflow: hidden;
}

.process-card__video-wrapper {
    cursor: pointer;
}

.process-card__thumbnail {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--transition-base), opacity var(--transition-base);
}

.process-card__video-wrapper:hover .process-card__thumbnail,
.process-card__image-wrapper:hover .process-card__thumbnail {
    transform: scale(1.03);
    opacity: 0.85;
}

.process-card__play-btn {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 52px;
    height: 52px;
    background-color: rgba(37, 99, 235, 0.9);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.process-card__video-wrapper:hover .process-card__play-btn {
    background-color: var(--color-primary);
    transform: translate(-50%, -50%) scale(1.08);
}

.process-card__play-btn svg {
    color: var(--color-white);
    margin-left: 3px; /* Optyczne wyrównanie trójkąta */
}

/* Dane i opis karty */
.process-card__body {
    padding: var(--space-5) var(--space-6);
}

.process-card__category {
    font-size: var(--text-xs);
    font-weight: var(--font-semibold);
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: var(--space-2);
}

.process-card__title {
    font-size: var(--text-base);
    font-weight: var(--font-semibold);
    color: var(--color-slate-950);
    margin-bottom: var(--space-3);
}

.process-card__stats {
    display: flex;
    gap: var(--space-4);
    flex-wrap: wrap;
}

.process-card__stat {
    font-size: var(--text-xs);
    color: var(--color-slate-500);
}

.process-card__stat strong {
    color: var(--color-slate-700);
    font-weight: var(--font-semibold);
}

/* --- Strefa IT (GitHub) --- */

.library__dev-zone {
    background-color: var(--color-slate-100);
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-lg);
    padding: var(--space-8);
    text-align: center;
}

.library__dev-zone h3 {
    font-size: var(--text-lg);
    margin-bottom: var(--space-3);
}

.library__dev-zone p {
    color: var(--color-slate-500);
    font-size: var(--text-sm);
    max-width: 520px;
    margin: 0 auto var(--space-5);
}

/* --- Responsive --- */

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

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