/* Academy — Single lesson */
.wc-ps-academy--lesson { max-width: 1120px; margin: 0 auto; padding: 32px 24px; }

.wc-ps-academy__lesson-layout {
    display: grid;
    gap: 32px;
    grid-template-columns: 280px 1fr;
}
.wc-ps-academy__lesson-layout.no-sidebar { grid-template-columns: 1fr; max-width: 820px; margin: 0 auto; }

.wc-ps-academy__lesson-sidebar { align-self: start; }
.wc-ps-academy__lesson-sidebar-title { font-weight: 700; margin: 8px 0 16px; font-size: 0.9375rem; }
.wc-ps-academy__lesson-list { list-style: none; padding: 0; margin: 0; }
.wc-ps-academy__lesson-item { margin-bottom: 4px; }
.wc-ps-academy__lesson-item a {
    display: grid;
    grid-template-columns: 28px 1fr;
    gap: 10px;
    align-items: start;
    padding: 10px 12px;
    border-radius: 10px;
    transition: background .15s ease;
}
.wc-ps-academy__lesson-item a:hover { background: var(--wc-bg); }
.wc-ps-academy__lesson-item.is-current a {
    background: var(--wc-accent-bg);
    border-left: 3px solid var(--wc-accent);
    padding-left: 9px;
}
.wc-ps-academy__lesson-item-idx { font-weight: 600; color: var(--wc-text-secondary); text-align: center; }
.wc-ps-academy__lesson-item-title { display: block; font-size: 0.8125rem; font-weight: 600; }
.wc-ps-academy__lesson-item-dur  { display: block; font-size: 0.75rem; color: var(--wc-text-secondary); }

.wc-ps-academy__lesson-meta-row { color: var(--wc-text-secondary); font-size: 0.875rem; margin-bottom: 8px; }
.wc-ps-academy__lesson-title {
    font-size: 2rem;
    font-weight: 900;
    margin: 0 0 20px;
    line-height: 1.2;
}

.wc-ps-academy__lesson-player {
    position: relative;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: var(--wc-radius);
    overflow: hidden;
    margin-bottom: 24px;
}
.wc-ps-academy__lesson-player iframe { position: absolute; inset: 0; width: 100%; height: 100%; border: 0; }
.wc-ps-academy__lesson-player-placeholder {
    position: absolute; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: #1e1e2e; color: #94a3b8; font-size: 0.9rem;
}

.wc-ps-academy__lesson-desc { margin-bottom: 32px; }

.wc-ps-academy__helpful {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 24px;
    background: #eef4ff;
    border-radius: var(--wc-radius);
    margin-bottom: 24px;
    flex-wrap: wrap;
}
.wc-ps-academy__helpful-label { font-weight: 500; }
.wc-ps-academy__helpful-actions { margin-left: auto; display: flex; gap: 8px; }
.wc-ps-academy__helpful-btn {
    padding: 8px 22px;
    border: 1px solid var(--wc-border);
    background: #fff;
    border-radius: 999px;
    cursor: pointer;
    font-size: 0.875rem;
}
.wc-ps-academy__helpful-btn:disabled { opacity: .5; cursor: not-allowed; }
.wc-ps-academy__helpful-thanks { color: var(--wc-text-secondary); font-size: 0.875rem; }

.wc-ps-academy__lesson-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 0;
    margin-bottom: 24px;
}
.wc-ps-academy__lesson-nav-pos { color: var(--wc-text-secondary); font-size: 0.875rem; }
.wc-ps-academy__btn--outline {
    background: transparent;
    color: var(--wc-text);
    border: 1px solid var(--wc-border);
}
.wc-ps-academy__btn--outline:hover { background: var(--wc-bg); }
.wc-ps-academy__btn.is-disabled { opacity: .4; cursor: not-allowed; pointer-events: none; }

.wc-ps-academy__next-card {
    display: block;
    padding: 20px 24px;
    border: 1px solid var(--wc-border);
    border-radius: var(--wc-radius);
    color: inherit;
    text-decoration: none;
    transition: background .15s ease;
}
.wc-ps-academy__next-card:hover { background: var(--wc-bg); }
.wc-ps-academy__next-card-label { display: block; font-size: 0.75rem; color: var(--wc-text-secondary); margin-bottom: 4px; }
.wc-ps-academy__next-card-title { display: block; font-weight: 600; margin-bottom: 2px; }
.wc-ps-academy__next-card-dur   { display: block; font-size: 0.75rem; color: var(--wc-text-secondary); }

@media (max-width: 960px) {
    .wc-ps-academy__lesson-layout { grid-template-columns: 1fr; }
}