/* =========================
   TRAINING SECTION
========================= */

.training {
    max-width: 1200px;
    margin: 0 auto 60px;
    padding: 0 20px;
}

.training p {
    max-width: 700px;
    margin-bottom: 30px;
    margin-left: 0px;
}

.training .na-box {
    border-top: 3px solid rgba(29, 78, 216, 0.25);
}


/* =========================
   TRAINING GRID
========================= */

.training-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px 18px;
}


/* =========================
   TRAINING LINKS
========================= */

.training-link {
    display: block;
    text-decoration: none;
    color: inherit;
}


/* =========================
   TRAINING TILES
========================= */

.training-tile {
    min-height: 52px;
    padding: 18px 20px;

    display: flex;
    align-items: center;
    justify-content: center;

    text-align: center;
    border-top: 2px solid rgba(29, 78, 216, 0.35);
    transition:
        transform 0.18s ease,
        border-color 0.18s ease,
        box-shadow 0.18s ease;
}

.training-tile .na-box-title {
    margin: 0;
    font-size: 1.02rem;
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: 0.01em;
}

.training-link:hover .training-tile,
.training-link:focus-visible .training-tile {
    border-top-color: rgba(29, 78, 216, 0.7);
}


/* =========================
   TRAINING DETAIL SECTION
========================= */

.training-detail {
    max-width: 1200px;
    margin: 40px auto 60px;
    padding: 0 20px;
}

.training-detail h3 {
    margin: 0 0 10px;
}

.training-detail p {
    max-width: 700px;
    margin: 0 0 30px 7px;
}


/* =========================
   TRAINING MODULES GRID
========================= */

.training-modules-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.training-modules-grid .na-box {
    max-width: none;
    margin: 0;
    text-align: left;
}


/* =========================
   COURSE CARD
========================= */

.course-card.na-box {
    display: grid;
    grid-template-columns: 56px 1fr;
    column-gap: 16px;
    row-gap: 12px;
    align-items: start;
}

.course-head,
.course-learn,
.course-footer {
    min-width: 0;
}

.course-head,
.course-learn {
    padding-bottom: 10px;
    margin-bottom: 10px;
    position: relative;
}

.course-head::after,
.course-learn::after {
    content: "";
    display: block;
    width: 90%;
    height: 1px;
    margin-top: 10px;
    background: rgba(148, 163, 184, 0.22);
}


/* =========================
   COURSE ICONS
========================= */

.course-icon {
    width: 28px;
    height: 28px;

    display: flex;              /* instead of grid */
    align-items: center;
    justify-content: center;

    font-weight: 700;
    font-size: 18px;
    line-height: 1;
    user-select: none;

    justify-self: center;
    opacity: 0.9;
}

.course-icon--brand {
    display: flex;
    align-items: center;
    justify-content: center;
}

.course-icon--sql {
    color: #1d4ed8;
}

.course-icon--level {
    font-size: 14px;
}

.course-icon--beginner {
    color: #16a34a;
}

.course-icon--intermediate {
    color: #ca8a04;
}

.course-icon--advanced {
    color: #ea580c;
}


/* =========================
   COURSE TEXT
========================= */

.course-title {
    margin: 0 0 8px;
}

.course-desc {
    margin: 0;
    max-width: 800px;
    font-size: 0.92rem;
    line-height: 1.55;
}


/* =========================
   COURSE LEARN BLOCK
========================= */

.course-learn-title {
    font-weight: 700;
    margin: 0 0 6px;
}

.course-learn-list {
    margin: 0;
    padding-left: 36px;
    font-size: 0.92rem;
    line-height: 1.5;
}

.course-learn-list li {
    margin: 0 0 6px;
}

.course-learn-list li:last-child {
    margin-bottom: 0;
}


/* =========================
   COURSE LEVEL
========================= */

.course-level {
    border: 1px solid currentColor;
    border-radius: 12px;
    padding: 10px 12px;
    line-height: 1.2;

    display: inline-flex;
    flex-direction: column;
    gap: 4px;

    font-size: 0.9rem;
}

.course-level-title {
    font-weight: 800;
}

.course-level-sub {
    opacity: 0.95;
}

.course-level--beginner {
    color: var(--level-beginner);
    background: var(--level-beginner-bg);
}

.course-level--intermediate {
    color: var(--level-intermediate);
    background: var(--level-intermediate-bg);
}

.course-level--advanced {
    color: var(--level-advanced);
    background: var(--level-advanced-bg);
}


/* =========================
   COURSE FOOTER
========================= */

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-top: 2px;
}


/* =========================
   INTERACTION
========================= */

.course-more {
    margin-top: 0;
    opacity: 0;
    pointer-events: none;
    transform: translateY(2px);
    transition: opacity 140ms ease, transform 140ms ease;
}

.course-card:hover .course-more,
.course-card:focus-within .course-more {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}


/* =========================
   TRAINING DETAIL CTA
========================= */

.training-detail-cta {
    display: flex;
    gap: 14px;
    justify-content: center;
    margin-top: 56px;
    padding-top: 16px;
}

.training-detail-cta a {
    text-decoration: none;
    font-size: 1rem;
}


/* =========================
   TRAINING COLLAPSE
========================= */

.training-toggle {
    background: none;
    border: none;

    font-family: inherit;
    font-size: 1.4rem;
    font-weight: 700;

    display: flex;
    align-items: center;
    gap: 10px;

    cursor: pointer;

    margin-bottom: 20px;
}

.training-arrow {
    width: 7px;
    height: 7px;

    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;

    transform: rotate(45deg);
    transition: transform 0.2s ease;
}

.training-toggle:hover {
    color: var(--na-icon-color);
}

/* rotate arrow when open */

.training-detail.is-open .training-arrow {
    transform: rotate(-135deg);
}

/* collapsing animation */

.training-content {
    max-height: 2000px;
    overflow: visible;
    transition: max-height 0.35s ease;
}

.training-detail:not(.is-open) .training-content {
    max-height: 0;
    overflow: hidden;
}


/* =========================
   RESPONSIVE
========================= */

@media (max-width: 1024px) {
    .training-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 14px 16px;
    }
}

@media (max-width: 900px) {
    .training-modules-grid {
        grid-template-columns: 1fr;
    }

    .course-more {
        opacity: 1;
        pointer-events: auto;
        transform: none;
    }

    .course-footer {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (max-width: 640px) {
    .training-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px 14px;
    }

    .training-tile {
        min-height: 64px;
        padding: 14px 16px;
    }

    .training-tile .na-box-title {
        font-size: 0.96rem;
    }
}