:root {
    --edu-mat-surface: #f8f6fb;
    --edu-mat-panel: #ffffff;
    --edu-mat-soft: #faf7fd;
    --edu-mat-blue-soft: #f2ebff;
    --edu-mat-text: #221a36;
    --edu-mat-muted: #483f5f;
    --edu-mat-faint: #796f90;
    --edu-mat-border: #d7cbe5;
    --edu-mat-border-soft: #ebe3f4;
    --edu-mat-primary: #6844c6;
    --edu-mat-primary-strong: #34255f;
    --edu-mat-secondary: #287b64;
    --edu-mat-secondary-soft: #eaf7f1;
    --edu-mat-tertiary: #8b5d10;
    --edu-mat-tertiary-soft: #fff4de;
    --edu-mat-error: #c44963;
    --edu-space-1: 4px;
    --edu-space-2: 8px;
    --edu-space-3: 12px;
    --edu-space-4: 16px;
    --edu-space-5: 20px;
    --edu-space-6: 24px;
    --edu-space-8: 32px;
    --edu-space-10: 40px;
    --edu-space-12: 48px;
    --edu-space-16: 64px;
    --edu-font-body: "Noto Sans KR", "Noto Sans", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    --edu-font-display: "Plus Jakarta Sans", "Noto Sans KR", system-ui, sans-serif;
    --edu-font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

.edu-materials-shell,
.edu-materials-join-shell,
.edu-materials-share-board-shell {
    color: var(--edu-mat-text);
    font-family: var(--edu-font-body);
}

.edu-materials-shell {
    background: linear-gradient(180deg, var(--edu-mat-surface) 0%, #faf7fd 48%, #f8f6fb 100%) !important;
}

.edu-materials-panel,
.edu-materials-join-card,
.edu-materials-share-board-card {
    background: rgba(255, 255, 255, 0.96) !important;
    border: 1px solid var(--edu-mat-border-soft) !important;
    border-radius: 8px !important;
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.06) !important;
    backdrop-filter: none !important;
}

.edu-materials-title,
.edu-materials-panel h1,
.edu-materials-panel h2,
.edu-materials-panel h3,
.edu-materials-share-board-title {
    color: var(--edu-mat-text);
    font-family: var(--edu-font-display);
    letter-spacing: 0;
}

.edu-materials-input,
.edu-materials-join-input {
    border: 1px solid var(--edu-mat-border) !important;
    border-radius: 8px !important;
    background: #fff !important;
    color: var(--edu-mat-text) !important;
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.75);
}

.edu-materials-input:focus,
.edu-materials-join-input:focus {
    border-color: var(--edu-mat-primary) !important;
    outline: 3px solid rgba(104, 68, 198, 0.18);
    outline-offset: 1px;
}

.edu-materials-workspace {
    display: grid;
    gap: var(--edu-space-6);
}

.edu-materials-workspace-nav {
    display: none;
}

.edu-materials-workspace-main {
    min-width: 0;
}

@media (min-width: 1180px) {
    .edu-materials-workspace {
        grid-template-columns: minmax(180px, 220px) minmax(0, 1fr);
        align-items: start;
    }

    .edu-materials-workspace-nav {
        position: sticky;
        top: calc(var(--main-nav-height, 88px) + 1rem);
        display: block;
    }

    /* 데스크톱에서는 왼쪽 메뉴가 같은 역할을 맡는다. */
    .edu-materials-primary-tabs {
        display: none !important;
    }
}

.edu-materials-app-nav {
    border: 1px solid var(--edu-mat-border-soft);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.94);
    padding: var(--edu-space-3);
    box-shadow: 0 10px 26px rgba(15, 23, 42, 0.06);
}

.edu-materials-app-nav-title {
    padding: var(--edu-space-2) var(--edu-space-2) var(--edu-space-3);
    color: var(--edu-mat-primary-strong);
    font-family: var(--edu-font-display);
    font-size: 1rem;
    font-weight: 800;
    line-height: 1.2;
}

.edu-materials-app-nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    border-radius: 8px;
    padding: 0 var(--edu-space-3);
    color: var(--edu-mat-muted);
    font-size: 0.92rem;
    font-weight: 800;
    text-decoration: none;
    transition: background-color 180ms ease, color 180ms ease, transform 120ms ease;
}

.edu-materials-app-nav-link:hover,
.edu-materials-app-nav-link:focus-visible {
    background: var(--edu-mat-soft);
    color: var(--edu-mat-primary-strong);
}

.edu-materials-app-nav-link:active {
    transform: translateY(1px);
}

.edu-materials-app-nav-link[data-active="true"] {
    background: var(--edu-mat-blue-soft);
    color: var(--edu-mat-primary-strong);
}

.edu-materials-app-nav-count {
    border-radius: 999px;
    background: rgba(104, 68, 198, 0.08);
    padding: 2px 8px;
    color: var(--edu-mat-primary-strong);
    font-family: var(--edu-font-mono);
    font-size: 0.72rem;
}

.edu-materials-app-nav-join {
    margin-top: var(--edu-space-3);
    border-top: 1px solid var(--edu-mat-border-soft);
    padding-top: var(--edu-space-3);
}

.edu-materials-topbar {
    border-radius: 8px !important;
    padding: var(--edu-space-3) var(--edu-space-4) !important;
}

.edu-materials-topbar-label {
    color: var(--edu-mat-primary-strong) !important;
    letter-spacing: 0 !important;
}

.edu-materials-tab-row {
    background: var(--edu-mat-soft) !important;
    border-radius: 8px !important;
}

.edu-materials-tab-row a {
    border-radius: 7px !important;
    min-height: 40px;
}

.edu-materials-library-categories {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    width: min(100%, 630px);
    gap: var(--edu-space-1);
    border: 1px solid var(--edu-mat-border-soft);
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.96);
    padding: var(--edu-space-1);
    box-shadow: 0 8px 20px rgba(15, 23, 42, 0.05);
}

.edu-materials-library-category {
    display: inline-flex;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 7px;
    padding: 0 var(--edu-space-2);
    color: var(--edu-mat-muted);
    font-size: 0.92rem;
    font-weight: 900;
    line-height: 1;
    text-decoration: none;
    word-break: keep-all;
    transition: background-color 160ms ease, color 160ms ease, box-shadow 160ms ease;
}

.edu-materials-library-category:hover,
.edu-materials-library-category:focus-visible {
    background: var(--edu-mat-soft);
    color: var(--edu-mat-primary-strong);
}

.edu-materials-library-category:focus-visible {
    outline: 3px solid rgba(104, 68, 198, 0.18);
    outline-offset: 2px;
}

.edu-materials-library-category[data-active="true"] {
    background: var(--edu-mat-primary);
    color: #fff;
    box-shadow: 0 6px 14px rgba(104, 68, 198, 0.18);
}

.edu-materials-discovery-panel {
    display: grid;
    width: 100%;
    max-width: 960px;
    margin-inline: auto;
    gap: var(--edu-space-3);
}

.edu-materials-sort-tabs {
    display: flex;
    gap: var(--edu-space-2);
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: thin;
}

.edu-materials-sort-tab {
    display: inline-flex;
    flex: none;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    border: 1px solid var(--edu-mat-border-soft);
    border-radius: 8px;
    background: #fff;
    padding: 0 var(--edu-space-4);
    color: var(--edu-mat-muted);
    font-size: 0.84rem;
    font-weight: 900;
    line-height: 1;
    text-decoration: none;
    white-space: nowrap;
    transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 120ms ease;
}

.edu-materials-sort-tab:hover,
.edu-materials-sort-tab:focus-visible {
    border-color: rgba(104, 68, 198, 0.38);
    color: var(--edu-mat-primary-strong);
}

.edu-materials-sort-tab:focus-visible {
    outline: 3px solid rgba(104, 68, 198, 0.18);
    outline-offset: 2px;
}

.edu-materials-sort-tab:active {
    transform: translateY(1px);
}

.edu-materials-sort-tab[data-active="true"] {
    border-color: var(--edu-mat-primary);
    background: var(--edu-mat-primary);
    color: #fff;
}

.edu-materials-quick-search {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: var(--edu-space-3);
    align-items: end;
}

.edu-materials-quick-search-actions {
    display: flex;
}

.edu-materials-quick-search-actions > * {
    min-height: 48px;
}

.edu-materials-clear-filters {
    width: fit-content;
    margin-left: auto;
    color: var(--edu-mat-faint);
    font-size: 0.82rem;
    font-weight: 800;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.edu-materials-more-filters {
    border-top: 1px solid var(--edu-mat-border-soft);
    padding-top: var(--edu-space-3);
}

.edu-materials-category-grid {
    display: grid;
    gap: var(--edu-space-3);
}

.edu-materials-category-choice {
    display: flex;
    min-height: 76px;
    cursor: pointer;
    align-items: center;
    gap: var(--edu-space-3);
    border: 2px solid var(--edu-mat-border-soft);
    border-radius: 12px;
    background: #fff;
    padding: var(--edu-space-4);
    color: var(--edu-mat-primary-strong);
    font-size: 1rem;
    font-weight: 900;
    line-height: 1.3;
    word-break: keep-all;
    transition: border-color 160ms ease, background-color 160ms ease, box-shadow 160ms ease, transform 120ms ease;
}

.edu-materials-category-choice:hover {
    border-color: rgba(104, 68, 198, 0.42);
    background: var(--edu-mat-soft);
    transform: translateY(-1px);
}

.edu-materials-category-choice:focus-within {
    border-color: var(--edu-mat-primary);
    outline: 3px solid rgba(104, 68, 198, 0.18);
    outline-offset: 2px;
}

.edu-materials-category-choice:has(input:checked) {
    border-color: var(--edu-mat-primary);
    background: var(--edu-mat-blue-soft);
    box-shadow: 0 10px 24px rgba(104, 68, 198, 0.12);
}

.edu-materials-category-choice input {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    clip-path: inset(50%);
    white-space: nowrap;
}

.edu-materials-category-choice > span {
    font-size: 1.75rem;
    line-height: 1;
}

.edu-materials-category-summary {
    display: inline-flex;
    min-height: 30px;
    align-items: center;
    border-radius: 999px;
    background: var(--edu-mat-blue-soft);
    padding: 0 var(--edu-space-3);
    color: var(--edu-mat-primary-strong);
    font-size: 0.78rem;
    font-weight: 900;
}

.edu-materials-more-filter-form {
    display: grid;
    gap: var(--edu-space-3);
    margin-top: var(--edu-space-3);
}

@media (min-width: 640px) {
    .edu-materials-topbar {
        padding: var(--edu-space-5) !important;
    }

    .edu-materials-more-filter-form {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        align-items: end;
    }

    .edu-materials-category-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (min-width: 1024px) {
    .edu-materials-more-filter-form {
        grid-template-columns: repeat(3, minmax(0, 1fr)) auto;
    }
}

.edu-materials-helper-card {
    background: linear-gradient(135deg, var(--edu-mat-primary-strong), var(--edu-mat-primary)) !important;
    box-shadow: 0 18px 40px rgba(104, 68, 198, 0.18) !important;
}

.edu-materials-gemini-button,
.edu-materials-primary-button,
.edu-materials-primary-action,
.edu-materials-save-button {
    border: 1px solid rgba(104, 68, 198, 0.14) !important;
    background: var(--edu-mat-primary) !important;
    color: #fff !important;
    box-shadow: 0 14px 30px rgba(104, 68, 198, 0.2) !important;
}

.edu-materials-gemini-button:hover,
.edu-materials-primary-button:hover,
.edu-materials-primary-action:hover,
.edu-materials-save-button:hover {
    background: var(--edu-mat-primary-strong) !important;
    transform: translateY(-1px);
}

.edu-materials-board-wrap {
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    padding: 0 !important;
}

.edu-materials-card-grid {
    display: grid;
    gap: var(--edu-space-6);
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

@media (min-width: 1536px) {
    .edu-materials-card-grid {
        grid-template-columns: repeat(3, minmax(0, 1fr));
    }
}

.edu-materials-board-card {
    gap: 0 !important;
    overflow: hidden;
    border: 1px solid var(--edu-mat-border) !important;
    border-radius: 8px !important;
    background: #fff !important;
    contain-intrinsic-size: 360px !important;
    box-shadow: 0 8px 18px rgba(15, 23, 42, 0.06) !important;
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.edu-materials-board-card:hover {
    border-color: rgba(104, 68, 198, 0.42) !important;
    box-shadow: 0 16px 34px rgba(15, 23, 42, 0.1) !important;
    transform: translateY(-1px);
}

.edu-materials-board-card[data-card-kind="game-platform"] {
    border-color: rgba(104, 68, 198, 0.34) !important;
    box-shadow: 0 10px 24px rgba(104, 68, 198, 0.1) !important;
}

.edu-materials-board-card[data-card-kind="game-platform"]:hover {
    border-color: var(--edu-mat-primary) !important;
    box-shadow: 0 18px 36px rgba(104, 68, 198, 0.16) !important;
}

.edu-materials-card-body {
    display: flex;
    min-height: 224px;
    flex: 1;
    flex-direction: column;
    padding: var(--edu-space-4);
}

.edu-materials-board-card[data-card-mode="public"] .edu-materials-card-body {
    min-height: 210px;
}

.edu-materials-preview-thumb {
    width: 100% !important;
    height: auto !important;
    aspect-ratio: 16 / 9;
    flex: none !important;
    border-radius: 0 !important;
    border: 0 !important;
    background: linear-gradient(135deg, var(--edu-mat-soft), #fff) !important;
    box-shadow: none !important;
}

.edu-materials-thumbnail-shell {
    position: relative;
}

.edu-materials-platform-ribbon {
    position: absolute;
    z-index: 2;
    top: var(--edu-space-3);
    left: var(--edu-space-3);
    display: inline-flex;
    min-height: 30px;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.32);
    border-radius: 999px;
    background: rgba(36, 21, 73, 0.88);
    padding: 0 var(--edu-space-3);
    color: #fff;
    font-size: 0.72rem;
    font-weight: 900;
    line-height: 1;
    backdrop-filter: blur(8px);
}

.edu-materials-board-card[id] {
    scroll-margin-top: calc(var(--main-nav-height, 88px) + 1rem);
}

.edu-materials-preview-card::after {
    display: none !important;
}

.edu-materials-card-title {
    margin-top: var(--edu-space-3);
    color: var(--edu-mat-text) !important;
    font-family: var(--edu-font-display);
    font-size: 1.125rem;
    font-weight: 800;
    line-height: 1.4;
    text-decoration: none;
}

.edu-materials-card-title:hover {
    color: var(--edu-mat-primary-strong) !important;
}

.edu-materials-card-kicker {
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    flex-wrap: wrap;
    min-height: 28px;
    gap: var(--edu-space-2);
}

.edu-materials-card-chip-row {
    display: flex;
    flex-wrap: wrap;
    gap: var(--edu-space-2);
    min-width: 0;
}

.edu-materials-card-creator {
    margin-top: var(--edu-space-2);
    color: var(--edu-mat-muted);
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.45;
}

.edu-materials-card-creator strong {
    color: var(--edu-mat-primary-strong);
    font-weight: 900;
}

.edu-materials-card-summary {
    margin-top: var(--edu-space-2);
    color: var(--edu-mat-muted);
    font-size: 1rem;
    font-weight: 500;
    line-height: 1.5;
}

.edu-materials-card-byline {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--edu-space-2);
    margin-top: var(--edu-space-3);
    color: var(--edu-mat-faint);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1.4;
}

.edu-materials-card-byline strong {
    color: var(--edu-mat-muted);
    font-weight: 800;
}

.edu-materials-card-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--edu-space-2);
    margin-top: auto;
    border-top: 1px solid var(--edu-mat-border-soft);
    padding-top: var(--edu-space-3);
    color: var(--edu-mat-faint);
    font-size: 0.8125rem;
    font-weight: 800;
    line-height: 1.35;
}

.edu-materials-status-label {
    color: var(--edu-mat-primary-strong) !important;
}

.edu-materials-chip {
    display: inline-flex;
    align-items: center;
    min-height: 26px;
    border-radius: 7px !important;
    background: var(--edu-mat-soft) !important;
    padding: 0 var(--edu-space-2);
    color: var(--edu-mat-primary-strong) !important;
    font-family: var(--edu-font-mono);
    font-size: 0.8125rem;
    font-weight: 700 !important;
    line-height: 1;
}

.edu-materials-chip--science,
.edu-materials-chip--type {
    background: var(--edu-mat-secondary-soft) !important;
    color: var(--edu-mat-secondary) !important;
}

.edu-materials-chip--platform {
    background: #efe9ff !important;
    color: #5b34b7 !important;
}

.edu-materials-card-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--edu-space-2);
    margin-top: var(--edu-space-3);
}

.edu-materials-board-card[data-card-mode="public"] .edu-materials-card-actions {
    margin-top: auto;
    padding-top: var(--edu-space-4);
}

.edu-materials-card-actions form {
    display: inline-flex;
    margin: 0;
}

.edu-materials-card-actions a,
.edu-materials-card-actions button {
    border-radius: 8px !important;
}

.edu-materials-card-delete-form {
    margin-left: auto !important;
}

.edu-materials-card-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    border: 1px solid var(--edu-mat-border-soft);
    padding: 0 var(--edu-space-3);
    font-size: 0.875rem;
    font-weight: 900;
    line-height: 1.2;
    text-align: center;
    text-decoration: none;
    transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease, transform 120ms ease;
}

.edu-materials-card-action:hover,
.edu-materials-card-action:focus-visible {
    transform: translateY(-1px);
}

.edu-materials-card-action:active {
    transform: translateY(1px);
}

.edu-materials-card-action:focus-visible {
    outline: 3px solid rgba(104, 68, 198, 0.18);
    outline-offset: 2px;
}

.edu-materials-card-action--primary {
    border-color: rgba(104, 68, 198, 0.16);
    background: var(--edu-mat-primary);
    color: #fff;
}

.edu-materials-card-action--primary:hover,
.edu-materials-card-action--primary:focus-visible {
    background: var(--edu-mat-primary-strong);
    color: #fff;
}

.edu-materials-card-action--secondary {
    background: var(--edu-mat-soft);
    color: var(--edu-mat-primary-strong);
}

.edu-materials-card-action--secondary:hover,
.edu-materials-card-action--secondary:focus-visible {
    border-color: var(--edu-mat-border);
    background: var(--edu-mat-blue-soft);
    color: var(--edu-mat-primary-strong);
}

.edu-materials-card-action--danger {
    border-color: transparent;
    background: transparent;
    color: var(--edu-mat-error);
}

.edu-materials-card-action--danger:hover,
.edu-materials-card-action--danger:focus-visible {
    background: rgba(196, 73, 99, 0.08);
    color: var(--edu-mat-error);
}

.edu-materials-share-card {
    background: var(--edu-mat-blue-soft) !important;
    color: var(--edu-mat-text) !important;
}

.edu-materials-share-card .edu-materials-share-code-compact,
.edu-materials-share-card .text-white {
    color: var(--edu-mat-primary-strong) !important;
}

.edu-materials-share-card .text-slate-300,
.edu-materials-share-card .text-slate-200 {
    color: var(--edu-mat-muted) !important;
}

.edu-materials-share-card [class*="border-white"] {
    border-color: rgba(104, 68, 198, 0.16) !important;
}

.edu-materials-share-card [class*="bg-white/"] {
    background: rgba(255, 255, 255, 0.72) !important;
}

.edu-materials-share-card button:not(.edu-materials-primary-action),
.edu-materials-share-card a:not(.edu-materials-primary-action) {
    color: var(--edu-mat-primary-strong) !important;
}

.edu-materials-share-card .edu-materials-primary-action {
    color: #fff !important;
}

.edu-materials-access-card {
    max-width: 720px;
    background: var(--edu-mat-panel) !important;
    border-color: var(--edu-mat-border-soft) !important;
    border-radius: 16px !important;
    color: var(--edu-mat-text) !important;
    box-shadow: 0 10px 24px rgba(34, 26, 54, 0.08) !important;
}

.edu-materials-access-header {
    margin-bottom: var(--edu-space-5);
}

.edu-materials-access-eyebrow,
.edu-materials-access-label {
    color: var(--edu-mat-faint);
    font-size: 0.8125rem;
    font-weight: 700;
    letter-spacing: 0;
    line-height: 1.25rem;
}

.edu-materials-access-eyebrow {
    color: var(--edu-mat-primary);
}

.edu-materials-access-title {
    margin-top: var(--edu-space-1);
    color: var(--edu-mat-text) !important;
    font-family: var(--edu-font-display);
    font-size: 1.75rem;
    font-weight: 800;
    letter-spacing: 0;
    line-height: 2.25rem;
}

.edu-materials-access-panel {
    display: grid;
    gap: var(--edu-space-5);
    align-items: center;
    padding: var(--edu-space-5);
    border: 1px solid var(--edu-mat-border-soft);
    border-radius: 16px;
    background: var(--edu-mat-soft);
}

.edu-materials-access-details {
    min-width: 0;
}

.edu-materials-access-code-row {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--edu-space-2);
    margin-top: var(--edu-space-1);
}

.edu-materials-access-card .edu-materials-share-code-compact {
    flex: 1 1 150px;
    min-width: 0;
    color: var(--edu-mat-primary-strong) !important;
    font-size: clamp(2rem, 10vw, 2.75rem);
    letter-spacing: 0.06em;
    line-height: 3rem;
    text-align: left;
}

.edu-materials-access-copy-button {
    flex: 0 0 auto;
    min-height: 40px;
    padding: 0 var(--edu-space-3);
    border: 1px solid var(--edu-mat-border) !important;
    border-radius: 10px;
    background: #fff !important;
    color: var(--edu-mat-primary-strong) !important;
    font-size: 0.8125rem;
    font-weight: 700;
    line-height: 1.25rem;
}

.edu-materials-access-url-group {
    margin-top: var(--edu-space-4);
    padding-top: var(--edu-space-4);
    border-top: 1px solid var(--edu-mat-border-soft);
}

.edu-materials-access-url {
    margin-top: var(--edu-space-1);
    overflow-wrap: anywhere;
    color: var(--edu-mat-muted);
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.25rem;
}

.edu-materials-access-qr {
    width: 120px;
    height: 120px;
    justify-self: center;
    padding: var(--edu-space-2);
    border: 1px solid var(--edu-mat-border-soft);
    border-radius: 12px;
    background: #fff;
}

.edu-materials-access-card .edu-materials-primary-action {
    min-height: 56px;
    padding: var(--edu-space-3) var(--edu-space-5);
    border-radius: 14px;
    background: var(--edu-mat-primary) !important;
    color: #fff !important;
    box-shadow: 0 10px 22px rgba(104, 68, 198, 0.2) !important;
}

.edu-materials-access-card .edu-materials-primary-action:hover {
    background: var(--edu-mat-primary-strong) !important;
    box-shadow: 0 12px 26px rgba(52, 37, 95, 0.22) !important;
}

.edu-materials-access-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--edu-space-2);
    margin-top: var(--edu-space-3);
}

.edu-materials-access-actions form {
    display: flex;
    min-width: 0;
}

.edu-materials-access-actions form .edu-materials-access-secondary-action {
    width: 100%;
}

.edu-materials-access-secondary-action {
    display: inline-flex;
    min-width: 0;
    min-height: 44px;
    align-items: center;
    justify-content: center;
    padding: var(--edu-space-2) var(--edu-space-3);
    border: 1px solid var(--edu-mat-border) !important;
    border-radius: 12px;
    background: #fff !important;
    color: var(--edu-mat-primary-strong) !important;
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.25rem;
    text-align: center;
}

.edu-materials-access-copy-button:hover,
.edu-materials-access-secondary-action:hover {
    border-color: var(--edu-mat-primary) !important;
    background: var(--edu-mat-blue-soft) !important;
}

.edu-materials-access-copy-button:focus-visible,
.edu-materials-access-secondary-action:focus-visible {
    outline: 3px solid rgba(104, 68, 198, 0.2);
    outline-offset: 2px;
}

.edu-materials-access-feedback {
    min-height: 1.25rem;
    margin-top: var(--edu-space-2);
    color: var(--edu-mat-secondary) !important;
    font-size: 0.875rem;
    font-weight: 700;
    line-height: 1.25rem;
}

.edu-materials-access-feedback.text-rose-300 {
    color: var(--edu-mat-error) !important;
}

.edu-materials-recent-sessions {
    margin-top: var(--edu-space-5);
    padding-top: var(--edu-space-5);
    border-top: 1px solid var(--edu-mat-border-soft);
}

.edu-materials-recent-session-list {
    display: grid;
    gap: var(--edu-space-2);
    margin-top: var(--edu-space-2);
}

.edu-materials-recent-session {
    display: flex;
    min-height: 44px;
    align-items: center;
    justify-content: space-between;
    gap: var(--edu-space-3);
    padding: var(--edu-space-2) var(--edu-space-3);
    border: 1px solid var(--edu-mat-border-soft);
    border-radius: 12px;
    background: #fff !important;
    color: var(--edu-mat-primary-strong) !important;
    font-size: 0.875rem;
    font-weight: 700;
}

@media (min-width: 400px) {
    .edu-materials-access-panel {
        grid-template-columns: minmax(0, 1fr) 120px;
    }
}

@media (max-width: 399px) {
    .edu-materials-access-card {
        padding: var(--edu-space-5) !important;
    }

    .edu-materials-access-panel {
        padding: var(--edu-space-4);
    }

    .edu-materials-access-qr {
        width: 128px;
        height: 128px;
    }
}

.edu-materials-live-frame {
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.12) !important;
}

.edu-materials-share-board-shell {
    background:
        radial-gradient(#e4d7fb 1.3px, transparent 1.3px),
        radial-gradient(#e4d7fb 1.3px, var(--edu-mat-surface) 1.3px) !important;
    background-position: 0 0, 30px 30px !important;
    background-size: 60px 60px !important;
}

.edu-materials-share-board-card {
    border-radius: 8px !important;
    padding: var(--edu-space-5) !important;
    box-shadow: 0 28px 64px rgba(15, 23, 42, 0.16) !important;
}

@media (min-width: 768px) {
    .edu-materials-share-board-card {
        padding: var(--edu-space-12) !important;
    }
}

.edu-materials-share-board-title {
    font-size: 2rem !important;
    line-height: 1.12 !important;
}

@media (min-width: 768px) {
    .edu-materials-share-board-title {
        font-size: 3.25rem !important;
    }
}

.edu-materials-share-code {
    color: var(--edu-mat-primary-strong);
    font-family: var(--edu-font-display);
    font-size: 2.5rem !important;
    letter-spacing: 0.06em !important;
}

@media (min-width: 768px) {
    .edu-materials-share-code {
        font-size: 5rem !important;
        letter-spacing: 0.12em !important;
    }
}

.edu-materials-qr-panel {
    border: 2px solid var(--edu-mat-primary) !important;
    border-radius: 8px !important;
    padding: var(--edu-space-4) !important;
    box-shadow: 0 20px 50px rgba(104, 68, 198, 0.14);
}

@media (min-width: 768px) {
    .edu-materials-qr-panel {
        padding: var(--edu-space-6) !important;
    }
}

.edu-materials-qr-panel img,
.edu-materials-qr-panel > div {
    box-sizing: border-box;
    width: min(100%, 300px) !important;
    height: auto !important;
    aspect-ratio: 1 / 1;
    border-radius: 8px !important;
}

.edu-materials-code-panel {
    background: var(--edu-mat-blue-soft) !important;
    border-radius: 8px !important;
    padding: var(--edu-space-4) !important;
    color: var(--edu-mat-text) !important;
}

.edu-materials-code-panel > div {
    border-radius: 8px !important;
    padding-inline: var(--edu-space-4) !important;
}

.edu-materials-code-panel [class*="break-all"] {
    font-size: 1.125rem !important;
    line-height: 1.35 !important;
}

.edu-materials-code-panel-label,
.edu-materials-code-panel-address {
    color: var(--edu-mat-primary-strong) !important;
}

@media (min-width: 768px) {
    .edu-materials-code-panel {
        padding: var(--edu-space-6) !important;
    }

    .edu-materials-code-panel [class*="break-all"] {
        font-size: 2.25rem !important;
    }
}

.edu-materials-run-shell {
    background: var(--edu-mat-surface) !important;
}

.edu-materials-run-toolbar {
    background: rgba(248, 246, 251, 0.96) !important;
    border-bottom: 1px solid var(--edu-mat-border-soft);
    box-shadow: none !important;
}

.edu-materials-run-progress {
    height: 6px;
    width: min(180px, 28vw);
    overflow: hidden;
    border-radius: 999px;
    background: var(--edu-mat-border-soft);
}

.edu-materials-run-progress::before {
    display: block;
    width: 68%;
    height: 100%;
    border-radius: inherit;
    background: var(--edu-mat-primary);
    content: "";
}

.edu-materials-run-back-link:focus-visible {
    outline-color: var(--edu-mat-primary) !important;
}

.edu-materials-join-shell {
    background:
        radial-gradient(#e4d7fb 1.3px, transparent 1.3px),
        radial-gradient(#e4d7fb 1.3px, var(--edu-mat-surface) 1.3px) !important;
    background-position: 0 0, 30px 30px !important;
    background-size: 60px 60px !important;
}

.edu-materials-join-input {
    font-family: var(--edu-font-display);
    letter-spacing: 0.22em !important;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
    }
}