/* F1SYH_COURSE_ADVANCED_NAVIGATION_V1 */

.course-layout[data-course-slug="modes-numeriques-radioamateur"] {
    --course-nav-border: color-mix(
        in srgb,
        currentColor 18%,
        transparent
    );
    --course-nav-muted: color-mix(
        in srgb,
        currentColor 68%,
        transparent
    );
    --course-nav-soft: color-mix(
        in srgb,
        currentColor 7%,
        transparent
    );
    --course-nav-accent: var(
        --accent,
        var(--primary, #176b87)
    );
}

.course-advanced-toolbar {
    position: sticky;
    top: 0.65rem;
    z-index: 35;
    display: grid;
    grid-template-columns:
        minmax(15rem, 1.8fr)
        minmax(11rem, 1fr)
        auto;
    gap: 0.7rem;
    align-items: end;
    margin: 1rem 0;
    padding: 0.85rem;
    border: 1px solid var(--course-nav-border);
    border-radius: 1rem;
    background:
        color-mix(
            in srgb,
            var(--surface, Canvas) 93%,
            transparent
        );
    box-shadow: 0 0.7rem 2rem rgb(0 0 0 / 0.10);
    backdrop-filter: blur(14px);
}

.course-advanced-toolbar-field {
    display: grid;
    gap: 0.32rem;
    min-width: 0;
}

.course-advanced-toolbar label {
    font-size: 0.78rem;
    font-weight: 750;
    letter-spacing: 0.02em;
    color: var(--course-nav-muted);
}

.course-advanced-toolbar input,
.course-advanced-toolbar select {
    width: 100%;
    min-height: 2.75rem;
    padding: 0.62rem 0.75rem;
    border: 1px solid var(--course-nav-border);
    border-radius: 0.72rem;
    color: inherit;
    background: var(--surface, Canvas);
    font: inherit;
}

.course-advanced-toolbar input:focus,
.course-advanced-toolbar select:focus {
    outline: 3px solid color-mix(
        in srgb,
        var(--course-nav-accent) 28%,
        transparent
    );
    outline-offset: 1px;
    border-color: var(--course-nav-accent);
}

.course-advanced-toolbar-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 0.45rem;
}

.course-advanced-toolbar button,
.course-mobile-toc-button,
.course-back-to-top {
    min-height: 2.7rem;
    border: 1px solid var(--course-nav-border);
    border-radius: 0.72rem;
    padding: 0.58rem 0.8rem;
    color: inherit;
    background: var(--surface, Canvas);
    font: inherit;
    font-weight: 720;
    cursor: pointer;
}

.course-advanced-toolbar button:hover,
.course-advanced-toolbar button:focus-visible,
.course-mobile-toc-button:hover,
.course-mobile-toc-button:focus-visible,
.course-back-to-top:hover,
.course-back-to-top:focus-visible {
    border-color: var(--course-nav-accent);
    background: color-mix(
        in srgb,
        var(--course-nav-accent) 10%,
        var(--surface, Canvas)
    );
}

.course-advanced-toolbar .course-resume-button {
    border-color: color-mix(
        in srgb,
        var(--course-nav-accent) 58%,
        transparent
    );
    color: var(--course-nav-accent);
}

.course-advanced-toolbar .course-resume-button[hidden] {
    display: none;
}

.course-search-status {
    grid-column: 1 / -1;
    min-height: 1.25rem;
    margin: -0.12rem 0 0;
    font-size: 0.83rem;
    color: var(--course-nav-muted);
}

.course-mobile-toc-button {
    display: none;
    width: 100%;
    margin: 0 0 0.8rem;
    border-color: color-mix(
        in srgb,
        var(--course-nav-accent) 58%,
        transparent
    );
}

.course-layout[data-course-slug="modes-numeriques-radioamateur"]
.course-sidebar {
    max-height: calc(100vh - 1.5rem);
    overflow: auto;
    overscroll-behavior: contain;
    scrollbar-gutter: stable;
}

.f1syh-course-chapter {
    margin: 0.5rem 0;
    border: 1px solid var(--course-nav-border);
    border-radius: 0.82rem;
    overflow: clip;
    background: var(--surface, Canvas);
}

.f1syh-course-chapter[hidden] {
    display: none;
}

.f1syh-course-chapter > h2 {
    margin: 0;
    padding: 0;
    font-size: inherit;
}

.f1syh-chapter-toggle {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 0.55rem;
    align-items: center;
    width: 100%;
    min-height: 3rem;
    padding: 0.62rem 0.72rem;
    border: 0;
    color: inherit;
    text-align: left;
    background: var(--course-nav-soft);
    font: inherit;
    font-weight: 780;
    cursor: pointer;
}

.f1syh-chapter-toggle:hover,
.f1syh-chapter-toggle:focus-visible {
    background: color-mix(
        in srgb,
        var(--course-nav-accent) 11%,
        var(--surface, Canvas)
    );
}

.f1syh-chapter-chevron {
    width: 1.1rem;
    text-align: center;
    transition: transform 180ms ease;
}

.f1syh-course-chapter.is-open .f1syh-chapter-chevron {
    transform: rotate(90deg);
}

.f1syh-chapter-title {
    min-width: 0;
    line-height: 1.25;
}

.f1syh-chapter-count {
    white-space: nowrap;
    font-size: 0.73rem;
    font-weight: 690;
    color: var(--course-nav-muted);
}

.f1syh-course-chapter > ul,
.f1syh-course-chapter > ol,
.f1syh-course-chapter > .f1syh-chapter-body {
    margin: 0;
    padding: 0.4rem 0.45rem 0.55rem;
}

.f1syh-course-chapter:not(.is-open) > ul,
.f1syh-course-chapter:not(.is-open) > ol,
.f1syh-course-chapter:not(.is-open) > .f1syh-chapter-body {
    display: none;
}

.f1syh-course-chapter a[data-lesson-navigation] {
    position: relative;
    display: block;
    padding-right: 2.75rem;
    border-radius: 0.58rem;
}

.f1syh-course-chapter a[data-lesson-navigation][aria-current="page"] {
    box-shadow: inset 3px 0 0 var(--course-nav-accent);
}

.f1syh-course-chapter a[data-lesson-navigation].f1syh-search-match {
    background: color-mix(
        in srgb,
        var(--course-nav-accent) 13%,
        transparent
    );
}

.f1syh-course-chapter a[data-lesson-navigation][hidden],
.f1syh-course-chapter li[hidden] {
    display: none !important;
}

.f1syh-chapter-progress {
    display: block;
    height: 3px;
    margin: 0;
    background: var(--course-nav-soft);
}

.f1syh-chapter-progress > span {
    display: block;
    width: 0;
    height: 100%;
    background: var(--course-nav-accent);
    transition: width 220ms ease;
}

.course-objectives.is-collapsed > :not(h2):not(.f1syh-objectives-toggle) {
    display: none;
}

.f1syh-objectives-toggle {
    margin: 0 0 0.7rem;
    border: 1px solid var(--course-nav-border);
    border-radius: 0.7rem;
    padding: 0.52rem 0.75rem;
    color: inherit;
    background: var(--surface, Canvas);
    font: inherit;
    font-weight: 720;
    cursor: pointer;
}

.course-back-to-top {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 60;
    min-width: 3rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(0.6rem);
    transition:
        opacity 160ms ease,
        transform 160ms ease;
    box-shadow: 0 0.45rem 1.4rem rgb(0 0 0 / 0.18);
}

.course-back-to-top.is-visible {
    opacity: 1;
    pointer-events: auto;
    transform: none;
}

.course-sidebar-overlay {
    display: none;
}

@media (max-width: 980px) {
    .course-advanced-toolbar {
        position: static;
        grid-template-columns: 1fr 1fr;
    }

    .course-advanced-toolbar-actions {
        grid-column: 1 / -1;
        justify-content: stretch;
    }

    .course-advanced-toolbar-actions button {
        flex: 1 1 10rem;
    }

    .course-mobile-toc-button {
        display: block;
    }

    .course-layout[data-course-slug="modes-numeriques-radioamateur"]
    .course-sidebar {
        position: fixed;
        inset: 0 auto 0 0;
        z-index: 80;
        width: min(91vw, 25rem);
        max-height: none;
        margin: 0;
        border-radius: 0 1rem 1rem 0;
        transform: translateX(-105%);
        transition: transform 190ms ease;
        box-shadow: 1rem 0 3rem rgb(0 0 0 / 0.28);
    }

    .course-layout[data-course-slug="modes-numeriques-radioamateur"]
    .course-sidebar.is-mobile-open {
        transform: none;
    }

    .course-sidebar-overlay {
        position: fixed;
        inset: 0;
        z-index: 70;
        display: block;
        border: 0;
        background: rgb(0 0 0 / 0.52);
        opacity: 0;
        pointer-events: none;
        transition: opacity 190ms ease;
    }

    .course-sidebar-overlay.is-visible {
        opacity: 1;
        pointer-events: auto;
    }

    body.course-sidebar-open {
        overflow: hidden;
    }
}

@media (max-width: 640px) {
    .course-advanced-toolbar {
        grid-template-columns: 1fr;
        padding: 0.72rem;
    }

    .course-advanced-toolbar-actions,
    .course-search-status {
        grid-column: auto;
    }

    .course-advanced-toolbar-actions {
        display: grid;
        grid-template-columns: 1fr 1fr;
    }

    .course-advanced-toolbar-actions .course-resume-button {
        grid-column: 1 / -1;
    }

    .course-back-to-top {
        right: 0.65rem;
        bottom: 0.65rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    .f1syh-chapter-chevron,
    .f1syh-chapter-progress > span,
    .course-back-to-top,
    .course-layout[data-course-slug="modes-numeriques-radioamateur"]
    .course-sidebar,
    .course-sidebar-overlay {
        transition: none;
    }
}