/* ========================================
   EXPLAINERS PAGE
   ======================================== */

/* Override global section padding */
.explainers-hero,
.explainers-filters,
.explainers-grid-section {
    padding: 0;
}

/* Hero */
.explainers-hero {
    padding: 160px 0 48px;
    text-align: center;
}

.explainers-label {
    font-family: var(--font-body);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--gold);
    margin-bottom: 16px;
}

.explainers-title {
    font-family: var(--font-display);
    font-size: clamp(2.4rem, 5vw, 3.6rem);
    font-weight: 400;
    color: var(--text);
    margin-bottom: 12px;
}

.explainers-subtitle {
    font-size: 1.05rem;
    color: var(--text-dim);
    max-width: 480px;
    margin: 0 auto;
    line-height: 1.6;
}

/* Remove global section divider lines on explainers page */
.explainers-hero::before,
.explainers-filters::before,
.explainers-grid-section::before {
    display: none;
}

/* Filter Tags */
.explainers-filters {
    padding: 0 0 40px;
}

.filter-tags {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: center;
}

.filter-tag {
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text-dim);
    padding: 8px 20px;
    border-radius: 100px;
    font-family: var(--font-body);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

.filter-tag:hover {
    border-color: var(--gold-dark);
    color: var(--text);
}

.filter-tag.active {
    background: var(--gold);
    border-color: var(--gold);
    color: var(--bg);
}

/* Video Grid */
.explainers-grid-section {
    padding: 0 0 100px;
}

.explainers-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.explainer-card {
    cursor: pointer;
    transition: var(--transition);
}

.explainer-card.hidden {
    display: none;
}

.explainer-card:hover {
    transform: translateY(-4px);
}

.explainer-card:hover .explainer-play {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.explainer-card:hover .explainer-thumb img {
    transform: scale(1.03);
}

/* Thumbnail */
.explainer-thumb {
    position: relative;
    aspect-ratio: 9 / 16;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--bg-card);
}

.explainer-thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.explainer-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.9);
    opacity: 0.7;
    transition: var(--transition);
    z-index: 3;
    pointer-events: none;
}

.explainer-tags {
    position: absolute;
    bottom: 12px;
    left: 12px;
    display: flex;
    gap: 6px;
    z-index: 3;
}

.explainer-tag {
    background: rgba(0, 0, 0, 0.65);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--gold-light);
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 4px 10px;
    border-radius: 100px;
}

.explainer-name {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text);
    margin-top: 12px;
    padding: 0 4px;
}

/* Empty state */
.explainers-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 1rem;
    padding: 60px 0;
}

/* ========================================
   MODAL (Desktop/Tablet)
   ======================================== */
.explainer-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: none;
    align-items: center;
    justify-content: center;
}

.explainer-modal.active {
    display: flex;
    animation: modalFadeIn 0.3s ease forwards;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.explainer-modal-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.explainer-modal-content {
    position: relative;
    max-height: 85vh;
    aspect-ratio: 9 / 16;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.6);
    animation: modalScaleIn 0.3s ease forwards;
}

@keyframes modalScaleIn {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.explainer-modal-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    background: #000;
}

.explainer-modal-close {
    position: absolute;
    top: 12px;
    right: 12px;
    z-index: 10;
    width: 40px;
    height: 40px;
    border: none;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.6);
    color: white;
    font-size: 1.4rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.explainer-modal-close:hover {
    background: rgba(0, 0, 0, 0.9);
}

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
    .explainers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }
}

@media (max-width: 640px) {
    .explainers-hero {
        padding: 130px 0 32px;
    }

    .explainers-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .explainer-name {
        font-size: 0.8rem;
        margin-top: 8px;
    }

    .explainer-play svg {
        width: 36px;
        height: 36px;
    }

    .explainer-tag {
        font-size: 0.6rem;
        padding: 3px 8px;
    }

    /* Fullscreen modal on mobile */
    .explainer-modal-content {
        max-height: 100vh;
        max-width: 100vw;
        border-radius: 0;
        aspect-ratio: auto;
        width: 100%;
        height: 100%;
    }

    .explainer-modal-close {
        top: 16px;
        right: 16px;
        width: 44px;
        height: 44px;
        font-size: 1.6rem;
    }
}