@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&display=swap');

:root {
    color-scheme: dark;
    --page: #20262d;
    --surface: #2a3139;
    --surface-2: #303943;
    --surface-3: #252c33;
    --line: rgba(177, 199, 220, 0.18);
    --line-strong: rgba(168, 203, 237, 0.38);
    --text: #edf2f7;
    --muted: #a7b3c0;
    --blue: #9dc5ee;
    --course-accent: 157, 197, 238;
}

* { box-sizing: border-box; }
html { min-width: 320px; background: #1c2228; }
body {
    min-height: 100vh;
    margin: 0;
    padding: 16px;
    color: var(--text);
    background: var(--page);
    font-family: "Space Grotesk", ui-sans-serif, system-ui, sans-serif;
    line-height: 1.45;
    letter-spacing: 0;
}
button, input, a { font: inherit; }
button:focus-visible, input:focus-visible, a:focus-visible { outline: 2px solid rgba(159, 204, 246, 0.84); outline-offset: 2px; }
button { color: inherit; }
[hidden] { display: none !important; }

.library-shell { width: min(1540px, 100%); margin: 0 auto; }
.library-toolbar,
.course-tabs,
.library-metrics,
.core-section,
.library-filters,
.library-results-panel {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(43, 50, 58, 0.94);
    box-shadow: inset 0 1px rgba(255, 255, 255, 0.025), 0 18px 44px rgba(4, 8, 13, 0.08);
}

.library-toolbar {
    position: sticky;
    top: 8px;
    z-index: 20;
    display: grid;
    grid-template-columns: 42px minmax(190px, auto) minmax(260px, 1fr) auto;
    align-items: center;
    gap: 11px;
    min-height: 64px;
    padding: 10px;
    backdrop-filter: blur(18px);
}
.icon-button,
.library-search button,
.sort-controls button,
.resource-action {
    display: inline-grid;
    place-items: center;
    border: 1px solid var(--line);
    border-radius: 7px;
    color: #cad7e3;
    background: rgba(34, 41, 48, 0.72);
    cursor: pointer;
    text-decoration: none;
    transition: transform 150ms ease, color 150ms ease, border-color 150ms ease, background-color 150ms ease;
}
.icon-button { width: 42px; height: 42px; padding: 0; }
.icon-button:hover,
.library-search button:hover,
.sort-controls button:hover,
.resource-action:hover {
    transform: translateY(-1px);
    color: #f7fbff;
    border-color: rgba(159, 199, 238, 0.52);
    background: rgba(49, 61, 72, 0.94);
}
.icon-button:active,
.library-search button:active,
.sort-controls button:active,
.resource-action:active { transform: scale(0.96); }
.icon-button.is-loading svg { animation: library-spin 760ms linear infinite; }
.icon-button svg,
.library-search svg,
.sort-controls svg,
.resource-action svg,
.filter-options svg,
.reset-filters svg,
.section-heading svg,
.resource-format-icon svg,
.library-title > svg,
.load-more svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.75;
    stroke-linecap: round;
    stroke-linejoin: round;
}

[data-tooltip] { position: relative; }
[data-tooltip]::after {
    position: absolute;
    z-index: 80;
    right: 50%;
    bottom: calc(100% + 9px);
    padding: 5px 8px;
    border: 1px solid rgba(190, 209, 227, 0.2);
    border-radius: 5px;
    color: #edf4fa;
    background: #181e24;
    content: attr(data-tooltip);
    font-size: 11px;
    font-weight: 500;
    line-height: 1;
    opacity: 0;
    pointer-events: none;
    transform: translate(50%, 3px);
    transition: opacity 120ms ease, transform 120ms ease;
    white-space: nowrap;
}
[data-tooltip]:hover::after,
[data-tooltip]:focus-visible::after { opacity: 1; transform: translate(50%, 0); }

.library-title { display: flex; align-items: center; min-width: 0; gap: 9px; }
.library-title > svg { width: 24px; height: 24px; color: var(--blue); }
.library-title h1 { margin: 0; font-size: 20px; font-weight: 650; }
.library-title span { color: var(--muted); font-size: 12px; white-space: nowrap; }
.library-search {
    position: relative;
    display: grid;
    grid-template-columns: 22px minmax(0, 1fr) 34px;
    align-items: center;
    gap: 7px;
    width: min(720px, 100%);
    justify-self: center;
    height: 42px;
    padding: 0 5px 0 12px;
    border: 1px solid rgba(177, 199, 220, 0.22);
    border-radius: 7px;
    color: #9dabb8;
    background: rgba(31, 38, 45, 0.75);
    transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease;
}
.library-search:focus-within {
    border-color: rgba(157, 200, 240, 0.62);
    background: rgba(35, 43, 51, 0.96);
    box-shadow: 0 0 0 3px rgba(122, 173, 222, 0.08);
}
.library-search input { min-width: 0; height: 100%; border: 0; outline: 0; color: #eef4fa; background: transparent; font-size: 14px; }
.library-search input::placeholder { color: #8795a3; }
.library-search button { width: 32px; height: 32px; padding: 0; border-color: transparent; background: transparent; }
.library-search button svg { width: 17px; height: 17px; }
.toolbar-actions { display: flex; gap: 6px; }
.mobile-filter-button { display: none; }
.filter-dot { position: absolute; top: 7px; right: 7px; width: 6px; height: 6px; border-radius: 50%; background: #a9d6bc; }

.course-tabs { display: flex; gap: 5px; margin-top: 10px; padding: 7px; overflow-x: auto; scrollbar-width: thin; }
.course-tab {
    --tab-accent: 157, 197, 238;
    flex: 1 0 auto;
    min-width: 138px;
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 8px 12px;
    border: 1px solid rgba(var(--tab-accent), 0.18);
    border-radius: 6px;
    color: rgba(231, 238, 246, 0.78);
    background: rgba(34, 41, 48, 0.68);
    cursor: pointer;
    font-size: 13px;
    font-weight: 550;
    transition: transform 150ms ease, color 150ms ease, border-color 150ms ease, background-color 150ms ease;
}
.course-tab small { color: rgba(208, 221, 234, 0.5); font-size: 10px; font-variant-numeric: tabular-nums; }
.course-tab:hover { transform: translateY(-1px); border-color: rgba(var(--tab-accent), 0.5); color: #f1f6fb; }
.course-tab.is-active { color: rgb(var(--tab-accent)); border-color: rgba(var(--tab-accent), 0.66); background: rgba(var(--tab-accent), 0.105); }

.library-metrics {
    display: grid;
    grid-template-columns: repeat(4, minmax(120px, 1fr));
    margin-top: 10px;
    overflow: hidden;
}
.metric { position: relative; min-height: 72px; padding: 13px 16px 12px; border-right: 1px solid var(--line); }
.metric:last-child { border-right: 0; }
.metric::before { position: absolute; top: 13px; bottom: 13px; left: 0; width: 2px; background: rgba(var(--metric-accent, 157, 197, 238), 0.75); content: ""; }
.metric small { display: block; color: #8997a5; font-size: 10px; font-weight: 650; text-transform: uppercase; }
.metric strong { display: block; margin-top: 3px; color: #edf4fa; font-size: 22px; line-height: 1; font-variant-numeric: tabular-nums; }
.metric.is-attention strong { color: #e8c09a; }

.core-section { margin-top: 10px; padding: 12px; }
.section-heading { display: flex; align-items: center; gap: 8px; min-height: 28px; padding: 0 3px 9px; }
.section-heading svg { width: 17px; height: 17px; color: #e6c58f; }
.section-heading h2 { margin: 0; font-size: 13px; font-weight: 650; text-transform: uppercase; }
.core-list { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 7px; }
.core-item {
    --item-accent: 157, 197, 238;
    min-width: 0;
    min-height: 82px;
    display: grid;
    grid-template-columns: 30px minmax(0, 1fr);
    align-items: center;
    gap: 10px;
    padding: 10px;
    border: 1px solid rgba(var(--item-accent), 0.2);
    border-radius: 6px;
    color: #eaf1f7;
    text-align: left;
    background: rgba(35, 42, 49, 0.72);
    cursor: pointer;
    transition: transform 150ms ease, border-color 150ms ease, background-color 150ms ease;
}
.core-item:hover { transform: translateY(-2px); border-color: rgba(var(--item-accent), 0.52); background: rgba(var(--item-accent), 0.085); }
.core-item svg { width: 25px; height: 25px; fill: none; stroke: rgb(var(--item-accent)); stroke-width: 1.65; stroke-linecap: round; stroke-linejoin: round; }
.core-copy { min-width: 0; }
.core-copy small { display: block; color: rgb(var(--item-accent)); font-size: 9px; font-weight: 650; text-transform: uppercase; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.core-copy strong { display: -webkit-box; margin-top: 4px; overflow: hidden; color: #edf3f8; font-size: 12px; font-weight: 600; line-height: 1.28; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }

.library-workspace { display: grid; grid-template-columns: 246px minmax(0, 1fr); align-items: start; gap: 10px; margin-top: 10px; }
.library-filters { position: sticky; top: 82px; padding: 14px; }
.filter-head { display: flex; align-items: center; justify-content: space-between; color: #e8eef4; font-size: 13px; font-weight: 650; }
.filter-head .icon-button { display: none; width: 36px; height: 36px; }
.filter-group { margin-top: 17px; }
.filter-group h2 { margin: 0 0 7px; color: #8f9eac; font-size: 10px; font-weight: 650; text-transform: uppercase; }
.filter-options { display: grid; gap: 3px; }
.filter-option {
    width: 100%; min-height: 36px; display: grid; grid-template-columns: 19px minmax(0, 1fr) auto; align-items: center; gap: 8px;
    padding: 6px 8px; border: 1px solid transparent; border-radius: 5px; color: #c2cdd8; text-align: left; background: transparent; cursor: pointer;
    font-size: 12px; transition: color 140ms ease, border-color 140ms ease, background-color 140ms ease, transform 140ms ease;
}
.filter-option:hover { color: #f0f5fa; background: rgba(151, 190, 226, 0.07); transform: translateX(2px); }
.filter-option.is-active { color: #dcecff; border-color: rgba(151, 196, 238, 0.28); background: rgba(133, 180, 224, 0.1); }
.filter-option svg { width: 17px; height: 17px; color: #9eb2c4; }
.filter-option small { color: #788795; font-size: 10px; font-variant-numeric: tabular-nums; }
.reset-filters { width: 100%; min-height: 36px; display: flex; align-items: center; justify-content: center; gap: 7px; margin-top: 18px; border: 1px solid var(--line); border-radius: 6px; color: #aebbc7; background: rgba(34, 41, 48, 0.55); cursor: pointer; font-size: 11px; transition: color 140ms ease, border-color 140ms ease, background-color 140ms ease; }
.reset-filters:hover { color: #eef4fa; border-color: rgba(159, 199, 238, 0.45); background: rgba(48, 59, 69, 0.8); }
.reset-filters svg { width: 16px; height: 16px; }

.library-results-panel { position: relative; min-height: 560px; overflow: hidden; }
.results-toolbar { min-height: 58px; display: flex; align-items: center; justify-content: space-between; gap: 12px; padding: 8px 12px 8px 17px; border-bottom: 1px solid var(--line); }
.results-toolbar > strong { font-size: 13px; font-weight: 600; }
.sort-controls { display: flex; gap: 3px; padding: 3px; border: 1px solid var(--line); border-radius: 7px; background: rgba(31, 38, 45, 0.55); }
.sort-controls button { width: 36px; height: 34px; padding: 0; border-color: transparent; background: transparent; }
.sort-controls button.is-active { color: #dcecff; border-color: rgba(155, 199, 240, 0.34); background: rgba(142, 187, 230, 0.13); }
.sort-controls svg { width: 18px; height: 18px; }
.active-filters { display: flex; flex-wrap: wrap; gap: 5px; padding: 9px 14px; border-bottom: 1px solid var(--line); }
.active-filter { display: inline-flex; align-items: center; min-height: 25px; padding: 4px 8px; border: 1px solid rgba(155, 196, 234, 0.24); border-radius: 5px; color: #bcd2e7; background: rgba(119, 164, 205, 0.08); font-size: 10px; }

.material-results { padding: 4px 12px 12px; }
.result-group { display: flex; align-items: center; gap: 10px; min-height: 42px; padding: 14px 3px 6px; color: #94a4b3; font-size: 10px; font-weight: 650; text-transform: uppercase; }
.result-group::after { flex: 1; height: 1px; background: rgba(177, 199, 220, 0.12); content: ""; }
.resource-row {
    --item-accent: 157, 197, 238;
    position: relative;
    display: grid;
    grid-template-columns: 43px minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
    min-height: 82px;
    margin-top: 5px;
    padding: 11px 10px 11px 12px;
    border: 1px solid rgba(177, 199, 220, 0.13);
    border-radius: 6px;
    background: rgba(37, 44, 51, 0.72);
    animation: resource-enter 240ms ease both;
    animation-delay: min(var(--row-delay, 0ms), 240ms);
    transition: transform 150ms ease, border-color 150ms ease, background-color 150ms ease;
}
.resource-row::before { position: absolute; top: 12px; bottom: 12px; left: 0; width: 2px; border-radius: 0 2px 2px 0; background: rgba(var(--item-accent), 0.72); content: ""; }
.resource-row:hover { transform: translateY(-1px); border-color: rgba(var(--item-accent), 0.34); background: rgba(var(--item-accent), 0.045); }
@keyframes resource-enter { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }
.resource-format-icon { width: 41px; height: 41px; display: grid; place-items: center; border: 1px solid rgba(var(--item-accent), 0.25); border-radius: 6px; color: rgb(var(--item-accent)); background: rgba(var(--item-accent), 0.07); }
.resource-format-icon svg { width: 22px; height: 22px; }
.resource-copy { min-width: 0; }
.resource-overline { display: flex; align-items: center; gap: 7px; min-width: 0; color: #8d9ba8; font-size: 9px; font-weight: 600; text-transform: uppercase; }
.resource-overline .course-name { color: rgb(var(--item-accent)); }
.resource-overline span { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.resource-title {
    display: block; max-width: 100%; margin: 3px 0 0; padding: 0; border: 0; color: #edf3f8; text-align: left; background: transparent;
    cursor: pointer; font-size: 14px; font-weight: 600; line-height: 1.28; transition: color 140ms ease;
}
.resource-title:hover { color: #fff; }
.resource-meta { display: flex; flex-wrap: wrap; gap: 5px 11px; margin-top: 5px; color: #83919e; font-size: 10px; }
.resource-meta span { white-space: nowrap; }
.resource-excerpt { display: -webkit-box; margin: 6px 0 0; overflow: hidden; color: #aebac5; font-size: 11px; line-height: 1.42; -webkit-box-orient: vertical; -webkit-line-clamp: 2; }
.resource-actions { display: flex; align-items: center; gap: 5px; }
.resource-action { width: 37px; height: 37px; padding: 0; }
.resource-action svg { width: 18px; height: 18px; }
.resource-action.is-material-loading svg,
.core-item.is-material-loading svg,
.resource-action.is-download-loading svg,
.resource-title.is-material-loading::after {
    animation: library-spin 700ms linear infinite;
}
.resource-title.is-material-loading::after { display: inline-block; width: 11px; height: 11px; margin-left: 8px; border: 1.5px solid rgba(236, 244, 250, 0.2); border-top-color: #f4f8fb; border-radius: 50%; content: ""; }
.attention-mark { color: #ddb486; }
.empty-results { display: grid; min-height: 330px; place-items: center; color: #8795a2; font-size: 13px; }
.load-more { min-width: 108px; min-height: 40px; display: flex; align-items: center; justify-content: center; gap: 7px; margin: 2px auto 18px; border: 1px solid rgba(159, 198, 235, 0.24); border-radius: 6px; color: #bfd3e5; background: rgba(38, 47, 55, 0.75); cursor: pointer; font-size: 12px; transition: transform 150ms ease, border-color 150ms ease, background-color 150ms ease; }
.load-more:hover { transform: translateY(-1px); border-color: rgba(159, 201, 240, 0.52); background: rgba(48, 60, 70, 0.9); }
.load-more svg { width: 17px; height: 17px; }
.library-error { margin: 24px; padding: 18px; color: #e0aaab; text-align: center; font-size: 13px; }

.results-loader { position: absolute; z-index: 12; inset: 59px 0 0; display: grid; place-items: center; background: rgba(32, 39, 46, 0.78); backdrop-filter: blur(3px); }
.results-loader span { position: relative; width: 42px; height: 42px; border: 2px solid rgba(239, 246, 252, 0.13); border-top-color: rgba(249, 252, 255, 0.95); border-right-color: rgba(157, 203, 244, 0.62); border-radius: 50%; box-shadow: 0 0 14px rgba(235, 246, 255, 0.13); animation: library-spin 760ms linear infinite; }
.results-loader span::after { position: absolute; inset: 7px; border: 1px solid rgba(255, 255, 255, 0.1); border-bottom-color: rgba(207, 229, 249, 0.42); border-radius: 50%; content: ""; animation: library-spin 1.25s linear infinite reverse; }
@keyframes library-spin { to { transform: rotate(360deg); } }

.filter-backdrop { position: fixed; z-index: 39; inset: 0; background: rgba(8, 12, 16, 0.54); backdrop-filter: blur(2px); }

@media (max-width: 1100px) {
    .core-list { grid-template-columns: repeat(3, minmax(0, 1fr)); }
    .library-workspace { grid-template-columns: 220px minmax(0, 1fr); }
}

@media (max-width: 820px) {
    body { padding: 9px; }
    .library-toolbar { top: 5px; grid-template-columns: 40px minmax(0, 1fr) auto; gap: 7px; }
    .library-title { grid-column: 2; }
    .library-title span { display: none; }
    .library-search { grid-column: 1 / -1; grid-row: 2; width: 100%; }
    .toolbar-actions { grid-column: 3; grid-row: 1; }
    .icon-button { width: 40px; height: 40px; }
    .mobile-filter-button { display: inline-grid; }
    .course-tabs { position: sticky; top: 120px; z-index: 18; backdrop-filter: blur(15px); }
    .course-tab { min-width: 132px; }
    .library-metrics { grid-template-columns: repeat(2, 1fr); }
    .metric:nth-child(2) { border-right: 0; }
    .metric:nth-child(-n + 2) { border-bottom: 1px solid var(--line); }
    .core-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .library-workspace { display: block; }
    .library-filters {
        position: fixed; z-index: 40; top: 0; right: 0; bottom: 0; width: min(330px, 88vw); overflow-y: auto; border-radius: 8px 0 0 8px;
        transform: translateX(104%); transition: transform 210ms ease; box-shadow: -24px 0 70px rgba(4, 8, 12, 0.28);
    }
    .library-filters.is-open { transform: translateX(0); }
    .filter-head .icon-button { display: grid; }
    .library-results-panel { min-height: 520px; }
}

@media (max-width: 560px) {
    body { padding: 6px; }
    .library-toolbar { padding: 7px; }
    .library-title > svg { display: none; }
    .library-title h1 { font-size: 18px; }
    .course-tabs { top: 110px; margin-top: 7px; padding: 5px; }
    .course-tab { min-width: 116px; min-height: 41px; padding: 7px 9px; font-size: 11px; }
    .core-section { margin-top: 7px; padding: 9px; }
    .core-list { display: flex; overflow-x: auto; scrollbar-width: thin; }
    .core-item { flex: 0 0 min(260px, 82vw); }
    .library-workspace { margin-top: 7px; }
    .results-toolbar { min-height: 54px; padding-left: 12px; background: rgba(43, 50, 58, 0.96); }
    .sort-controls button { width: 33px; height: 32px; }
    .material-results { padding-inline: 7px; }
    .resource-row { grid-template-columns: 36px minmax(0, 1fr); gap: 9px; min-height: 94px; padding: 10px 8px 10px 10px; }
    .resource-format-icon { width: 35px; height: 35px; }
    .resource-actions { grid-column: 2; justify-content: flex-start; }
    .resource-action { width: 34px; height: 32px; }
    .resource-title { font-size: 13px; }
    .resource-overline { font-size: 8px; }
    .resource-meta { gap: 4px 8px; }
    .results-loader { top: 54px; }
    [data-tooltip]::after { display: none; }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { scroll-behavior: auto !important; animation-duration: 1ms !important; animation-iteration-count: 1 !important; transition-duration: 1ms !important; }
}

.resource-description { margin: 8px 0 0; color: #b9c5ce; font-size: 13px; line-height: 1.65; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.resource-details { margin-top: 7px; }
.resource-details summary { display: grid; place-items: center; width: 34px; height: 30px; cursor: pointer; color: #a6c9de; border-radius: 5px; transition: background .18s ease, color .18s ease; list-style: none; }
.resource-details summary::-webkit-details-marker { display: none; }
.resource-details summary svg { width: 21px; height: 21px; fill: none; stroke: currentColor; stroke-width: 1.65; }
.resource-details summary:hover, .resource-details summary:focus-visible, .resource-details[open] summary { background: rgba(157,197,238,.12); color: #e5f2fc; }
.resource-details[open] { border-top: 1px solid rgba(176,195,210,.16); padding-top: 8px; }
.resource-description-full { color: #d6dfe6; font-size: 14px; line-height: 1.8; max-width: 86ch; margin: 9px 0 15px; white-space: pre-line; overflow-wrap: anywhere; }
.resource-copy:has(.resource-details[open]) > .resource-description { display: none; }
.resource-row:has(.resource-details[open]) { align-items: start; }
.resource-row:has(.resource-details[open]) .resource-format-icon { margin-top: 3px; }
.resource-details dl { display: grid; grid-template-columns: 95px minmax(0,1fr); gap: 9px 12px; margin: 8px 0 13px; font-size: 12px; line-height: 1.6; }
.resource-details dt { color: #9cabb7; }
.resource-details dd { margin: 0; color: #c4d4df; overflow-wrap: anywhere; }
@media (max-width: 600px) { .resource-details dl { grid-template-columns: 1fr; gap: 3px; } .resource-details dd { margin-bottom: 9px; } }
@media (prefers-reduced-motion: reduce) { .resource-details summary { transition: none; } }
.resource-index-content { max-width: 100%; margin-top: 18px; }
.index-heading { display: flex; align-items: center; justify-content: space-between; gap: 12px; border-top: 1px solid rgba(176,195,210,.16); padding-top: 12px; }
.index-heading h3 { margin: 0; font-size: 15px; font-weight: 600; color: #bfdccb; }
.resource-details .index-section { border-bottom: 1px solid rgba(176,195,210,.12); }
.resource-details .index-section > summary { display: flex; align-items: start; justify-content: space-between; gap: 16px; width: auto; height: auto; min-height: 44px; padding: 11px 7px; font-size: 14px; line-height: 1.55; }
.index-section summary span { min-width: 0; overflow-wrap: anywhere; }
.index-section summary small { color: #acbac5; flex: 0 1 32%; font-size: 12px; text-align: right; }
.index-section p { font-size: 14px; line-height: 1.8; margin: 8px 7px 14px; color: #d1dde5; white-space: pre-line; overflow-wrap: anywhere; }
.index-section .index-topics { font-size: 12px; color: #a7c9ba; }
.index-section pre { font-size: 13px; font-family: inherit; line-height: 1.8; white-space: pre-wrap; overflow-wrap: anywhere; margin: 12px 7px; color: #c8d4de; }
.index-loader { min-height: 70px; display: grid; place-items: center; }
.index-loader span { width: 25px; height: 25px; border: 2px solid rgba(239,246,252,.13); border-top-color: #eef6fb; border-radius: 50%; box-shadow: 0 0 12px rgba(235,246,255,.15); animation: library-spin 760ms linear infinite; }
.index-retry { padding: 9px 12px; color: #e4bca7; background: transparent; border: 1px solid #64534e; border-radius: 5px; cursor: pointer; }
@media (max-width:600px) { .resource-details .index-section > summary { flex-direction: column; gap: 3px; } .index-section summary small { text-align: left; } }
@media (prefers-reduced-motion:reduce) { .index-loader span { animation-duration: 2s; } }