/**
 * Simple LMS — Student Tutorials page (/tutorials/)
 * Sidebar + one-section-at-a-time layout. Loaded only on is_page('tutorials'),
 * after lms-landing.css (tokens) and lms-blog.css (article shell).
 * The section cards themselves are styled by the page body's own .mas-tut block.
 */

/* ── Two-column shell once the sidebar has been built ──────────────────── */
.slms-tutorials--side .slms-post-layout--single {
    grid-template-columns: 272px minmax(0, 1fr);
    max-width: 1320px;
    gap: 28px;
}

/* ── Sidebar ───────────────────────────────────────────────────────────── */
.slms-tut-side {
    position: sticky;
    top: calc(var(--mas-nav-h) + 16px);
    align-self: start;
    max-height: calc(100vh - var(--mas-nav-h) - 32px);
    overflow-y: auto;
    background: var(--mas-card);
    border: 1px solid var(--mas-border);
    border-radius: var(--mas-radius);
    box-shadow: var(--mas-shadow);
    padding: 12px;
    scrollbar-width: thin;
}
.slms-tut-side[hidden] { display: none; }

.slms-tut-side__toggle { display: none; }

.slms-tut-side__nav { display: flex; flex-direction: column; gap: 4px; }

.slms-tut-side__link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 10px;
    border-radius: 10px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--mas-text);
    text-decoration: none !important;
    border-left: 3px solid transparent;
    transition: background var(--mas-transition), color var(--mas-transition);
}
.slms-tut-side__link:hover { background: var(--mas-surface); color: var(--mas-primary-dark); }
.slms-tut-side__link.is-active {
    background: rgba(var(--mas-primary-rgb), .1);
    color: var(--mas-primary-dark);
    border-left-color: var(--mas-primary);
}
.slms-tut-side__link--home { margin-bottom: 6px; }

.slms-tut-side__num {
    flex: 0 0 24px;
    width: 24px; height: 24px;
    border-radius: 50%;
    background: var(--mas-surface);
    color: var(--mas-primary-dark);
    font-size: 11.5px;
    font-weight: 800;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.slms-tut-side__link.is-active .slms-tut-side__num { background: var(--mas-primary); color: #fff; }
.slms-tut-side__link--home .slms-tut-side__num { background: transparent; font-size: 15px; }

.slms-tut-side__group { border-top: 1px solid var(--mas-border); padding-top: 4px; margin-top: 4px; }
.slms-tut-side__group-btn {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 9px 10px;
    background: transparent;
    border: 0;
    border-radius: 10px;
    text-align: left;
    font: inherit;
    font-size: 12.5px;
    font-weight: 800;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--mas-muted);
    cursor: pointer;
}
.slms-tut-side__group-btn:hover { background: var(--mas-surface); color: var(--mas-primary-dark); }
.slms-tut-side__chev { font-size: 18px; line-height: 1; transition: transform var(--mas-transition); }
.slms-tut-side__group-btn[aria-expanded="true"] .slms-tut-side__chev { transform: rotate(90deg); }
.slms-tut-side__items { display: flex; flex-direction: column; gap: 2px; padding: 2px 0 6px 6px; }
.slms-tut-side__items[hidden] { display: none; }

.slms-tut-side__mode {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 10px;
    padding: 10px;
    border-top: 1px solid var(--mas-border);
    font-size: 13px;
    color: var(--mas-muted);
    cursor: pointer;
}
.slms-tut-side__mode input { accent-color: var(--mas-primary); }

/* ── Content adjustments in one-section mode ───────────────────────────── */
/* Native anchor jumps (#s05-ai-tutor) land below the sticky site header. */
.slms-tutorials .mas-tut__card,
.slms-tutorials .mas-tut h2.mas-tut__part,
.slms-tutorials .mas-tut__faq { scroll-margin-top: calc(var(--mas-nav-h) + 16px); }
.slms-tutorials--side .mas-tut h2.mas-tut__part.is-context {
    margin-top: 0;
    padding-top: 0;
    border-top: 0;
    font-size: 15px;
    font-weight: 700;
    letter-spacing: .04em;
    text-transform: uppercase;
    color: var(--mas-muted);
}
.slms-tutorials--side .mas-tut h2.mas-tut__part.is-context small { display: none; }
.slms-tutorials--side .mas-tut [hidden] { display: none !important; }

/* ── Previous / Next ───────────────────────────────────────────────────── */
.slms-tut-pn {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin: 28px 0 0;
}
.slms-tut-pn[hidden] { display: none; }
.slms-tut-pn__link {
    flex: 1 1 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
    padding: 14px 18px;
    border: 1px solid var(--mas-border);
    border-radius: var(--mas-radius-sm);
    background: var(--mas-card);
    text-decoration: none !important;
    transition: border-color var(--mas-transition), transform var(--mas-transition);
}
.slms-tut-pn__link:hover { border-color: var(--mas-primary); transform: translateY(-1px); }
.slms-tut-pn__link--next { text-align: right; align-items: flex-end; }
.slms-tut-pn__link[hidden] { display: none; }
.slms-tut-pn__label { font-size: 12px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; color: var(--mas-muted); }
.slms-tut-pn__title { font-size: 15px; font-weight: 700; color: var(--mas-primary-dark); }

/* ── Mobile: sidebar becomes a collapsible menu above the content ──────── */
@media (max-width: 980px) {
    .slms-tutorials--side .slms-post-layout--single { grid-template-columns: minmax(0, 1fr); }
    .slms-tut-side {
        position: static;
        max-height: none;
        overflow: visible;
        padding: 6px;
    }
    .slms-tut-side__toggle {
        display: flex;
        width: 100%;
        align-items: center;
        justify-content: space-between;
        padding: 12px 14px;
        border: 0;
        border-radius: var(--mas-radius-sm);
        background: var(--mas-primary);
        color: #fff;
        font: inherit;
        font-size: 15px;
        font-weight: 700;
        cursor: pointer;
    }
    .slms-tut-side__nav { display: none; padding: 8px 4px 4px; }
    .slms-tut-side.is-open .slms-tut-side__nav { display: flex; }
    .slms-tut-pn { flex-direction: column; }
    .slms-tut-pn__link--next { text-align: left; align-items: flex-start; }
}