/* Student shelf/presentation extensions for the role-based board UI. */

.board-page .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Toolbar --------------------------------------------------------------- */

.board-page .board-toolbar.board-redesign-post-toolbar {
    grid-template-columns: minmax(0, 1fr) auto auto auto auto;
}

.board-page .board-presentation-trigger {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 0 16px;
    border: 1px solid #365179;
    border-radius: 14px;
    background: #1c3154;
    color: #ddebff;
    font: inherit;
    font-weight: 900;
    cursor: pointer;
    transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s ease;
}

.board-page .board-presentation-trigger:hover {
    border-color: #5686ce;
    background: #254b82;
    transform: translateY(-1px);
}

.board-page .board-presentation-trigger:focus-visible {
    outline: 3px solid rgba(96, 165, 250, 0.42);
    outline-offset: 2px;
}

.board-page .board-presentation-trigger:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-presentation-trigger {
    border-color: #b7c7ed;
    background: #e8eefc;
    color: #244dbb;
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-presentation-trigger:hover {
    border-color: #9eb3e8;
    background: #dce7ff;
}

#writeModal .write-modal #postShelf {
    width: 100%;
    min-height: 44px;
    padding: 10px 38px 10px 12px;
    border: 1px solid var(--border);
    border-radius: 12px;
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    font: inherit;
    font-size: 14px;
}

#writeModal .write-modal #postShelf:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

body.board-page[data-board-role="student"][data-board-theme="dark"] #postShelf {
    color-scheme: dark;
}

body.board-page[data-board-role="student"][data-board-theme="light"] #postShelf {
    color-scheme: light;
}

#writeModal .write-modal #postShelf option {
    background: Canvas;
    color: CanvasText;
}

/* Shelf view ------------------------------------------------------------ */

body.board-page[data-board-view="shelf"] #postContainer {
    display: block;
    width: 100%;
    max-width: none;
    margin: 0;
    padding-bottom: 40px;
}

.board-page .board-shelf-view {
    min-width: 0;
}

.board-page .board-shelf-move-notice {
    display: flex;
    align-items: center;
    gap: 7px;
    width: fit-content;
    margin: 0 0 12px;
    padding: 8px 11px;
    border: 1px solid #365179;
    border-radius: 10px;
    background: #142239;
    color: #b8c7da;
    font-size: 12px;
    font-weight: 700;
}

.board-page .board-shelf-tabs {
    display: none;
}

.board-page .board-shelf-lanes {
    display: grid;
    grid-auto-flow: column;
    grid-auto-columns: minmax(300px, 340px);
    align-items: start;
    gap: 16px;
    overflow-x: auto;
    overscroll-behavior-inline: contain;
    scroll-snap-type: inline proximity;
    scrollbar-gutter: stable;
    padding: 2px 2px 18px;
}

.board-page .board-shelf-lane {
    min-width: 0;
    overflow: visible;
    scroll-snap-align: start;
    border: 1px solid #2b405e;
    border-radius: 20px;
    background: #0d1a2c;
    box-shadow: 0 14px 34px rgba(0, 0, 0, 0.16);
}

.board-page .board-shelf-add-lane {
    min-height: 184px;
    display: grid;
    align-content: center;
    justify-items: center;
    gap: 8px;
    padding: 24px;
    border: 2px dashed #365179;
    border-radius: 20px;
    background: rgba(20, 34, 57, 0.58);
    color: #b8c7da;
    cursor: pointer;
    scroll-snap-align: start;
}

.board-page .board-shelf-add-lane span {
    font-size: 42px;
    font-weight: 300;
    line-height: 1;
}

.board-page .board-shelf-add-lane strong { font-size: 14px; }
.board-page .board-shelf-add-lane small { color: #8294ad; font-weight: 800; }
.board-page .board-shelf-add-lane:hover,
.board-page .board-shelf-add-lane:focus-visible { border-color: #60a5fa; background: #142b49; color: #eef6ff; }
.board-page .board-shelf-add-lane:disabled { cursor: not-allowed; opacity: 0.48; }
.board-page .board-shelf-add-tab { display: none; }

.board-page .board-shelf-lane.is-unclassified {
    border-style: dashed;
}

.board-page .board-shelf-lane-header {
    position: sticky;
    top: 0;
    z-index: 3;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 58px;
    padding: 14px 16px;
    border-bottom: 1px solid #2b405e;
    background: #142239;
}

.board-page .board-shelf-lane-header h2 {
    min-width: 0;
    margin: 0;
    overflow: hidden;
    color: #f4f7fb;
    font-size: 15px;
    font-weight: 900;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.board-page .board-shelf-lane-header span {
    flex: 0 0 auto;
    min-width: 34px;
    padding: 5px 9px;
    border: 1px solid #365179;
    border-radius: 999px;
    background: #0a1525;
    color: #b8c7da;
    font-size: 11px;
    font-weight: 800;
    text-align: center;
}

.board-page .board-shelf-cards {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 14px;
}

.board-page .board-shelf-cards .post-card {
    width: 100%;
    min-width: 0;
}

.board-page .board-shelf-cards .post-head-actions {
    position: relative;
}

.board-page .board-shelf-move-handle {
    display: inline-grid;
    width: 32px;
    height: 32px;
    place-items: center;
    border: 1px solid #365179;
    border-radius: 9px;
    background: #142239;
    color: #b8c7da;
    cursor: grab;
    touch-action: none;
}

.board-page .board-shelf-move-handle:hover,
.board-page .board-shelf-move-handle:focus-visible,
.board-page .board-shelf-move-handle[aria-expanded="true"] {
    border-color: #6688b7;
    background: #1a3150;
    color: #ffffff;
    outline: none;
}

.board-page .board-shelf-move-handle:active {
    cursor: grabbing;
}

.board-page .board-shelf-move-menu {
    position: absolute;
    top: calc(100% + 7px);
    right: 0;
    z-index: 20;
    display: grid;
    width: min(220px, 72vw);
    gap: 6px;
    padding: 9px;
    border: 1px solid #365179;
    border-radius: 12px;
    background: #0a1525;
    box-shadow: 0 16px 36px rgba(0, 0, 0, 0.34);
}

.board-page .board-shelf-move-menu p {
    margin: 2px 4px;
    color: #93a4bc;
    font-size: 11px;
    font-weight: 800;
}

.board-page .board-shelf-move-menu button {
    min-height: 36px;
    padding: 8px 10px;
    border: 1px solid #2b405e;
    border-radius: 9px;
    background: #142239;
    color: #e4ebf5;
    font: inherit;
    font-size: 12px;
    font-weight: 800;
    text-align: left;
}

.board-page .board-shelf-move-menu button:hover:not(:disabled),
.board-page .board-shelf-move-menu button:focus-visible {
    border-color: #6688b7;
    background: #1a3150;
    outline: none;
}

.board-page .board-shelf-move-menu button:disabled {
    cursor: not-allowed;
    opacity: 0.4;
}

.board-page .board-shelf-order-actions {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.board-page .board-shelf-order-actions + p {
    margin-top: 6px;
    padding-top: 8px;
    border-top: 1px solid #2b405e;
}

.board-page .board-shelf-drop-placeholder {
    min-height: 76px;
    border: 2px dashed #60a5fa;
    border-radius: 14px;
    background: rgba(59, 130, 246, 0.12);
}

.board-page .board-shelf-lane.is-board-shelf-drop-target,
.board-page .board-shelf-cards.is-board-shelf-drop-target {
    outline: 2px solid #60a5fa;
    outline-offset: -2px;
}

.board-page .board-shelf-tab.is-board-shelf-drop-target {
    border-color: #60a5fa;
    background: #1d4ed8;
    color: #ffffff;
}

.board-page .post-card.is-board-shelf-dragging {
    opacity: 0.32;
}

.board-shelf-drag-ghost {
    position: fixed;
    top: 0;
    left: 0;
    z-index: 10050;
    max-height: min(520px, 72vh);
    overflow: hidden;
    pointer-events: none;
    opacity: 0.92;
    box-shadow: 0 24px 60px rgba(0, 0, 0, 0.34);
    transform-origin: top left;
}

.board-page .board-shelf-view.is-board-shelf-saving .board-shelf-move-handle {
    cursor: wait;
    opacity: 0.5;
    pointer-events: none;
}

.board-page .board-shelf-empty {
    display: grid;
    min-height: 132px;
    place-items: center;
    padding: 24px;
    border: 1px dashed #365179;
    border-radius: 16px;
    color: #93a4bc;
    font-size: 13px;
    font-weight: 700;
    text-align: center;
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-lane {
    border-color: var(--board-mock-line);
    background: #f7f9fc;
    box-shadow: 0 12px 28px rgba(44, 62, 92, 0.08);
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-lane-header {
    border-bottom-color: var(--board-mock-line);
    background: #ffffff;
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-lane-header h2 {
    color: var(--board-mock-text);
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-lane-header span {
    border-color: #c8d5f4;
    background: #edf2ff;
    color: #244dbb;
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-empty {
    border-color: #c4d0df;
    color: var(--board-mock-muted);
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-move-notice,
body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-move-handle {
    border-color: #c8d5f4;
    background: #edf2ff;
    color: #244dbb;
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-move-menu {
    border-color: #c8d5f4;
    background: #ffffff;
    box-shadow: 0 16px 36px rgba(44, 62, 92, 0.18);
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-move-menu p {
    color: var(--board-mock-muted);
}

body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-move-menu button {
    border-color: #d8e0ec;
    background: #f7f9fc;
    color: var(--board-mock-text);
}

/* Policy shelf editor --------------------------------------------------- */

#policySettingsModal .policy-settings-nav {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: minmax(0, 1fr);
}

#policySettingsModal .policy-shelves-section-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 14px;
}

#policySettingsModal .policy-shelves-meta {
    flex: 0 0 auto;
    padding: 6px 10px;
    border: 1px solid #365179;
    border-radius: 999px;
    background: #0a1525;
    color: #b8c7da;
    font-size: 11px;
    font-weight: 800;
}

#policySettingsModal .policy-shelves-list {
    display: grid;
    gap: 10px;
}

#policySettingsModal .board-shelf-editor-empty {
    padding: 28px 18px;
    border: 1px dashed #365179;
    border-radius: 14px;
    color: #93a4bc;
    font-size: 12px;
    line-height: 1.6;
    text-align: center;
}

#policySettingsModal .board-shelf-editor-row {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr) auto;
    align-items: center;
    gap: 10px;
    padding: 10px;
    border: 1px solid #304868;
    border-radius: 14px;
    background: #0d1a2c;
}

#policySettingsModal .board-shelf-editor-order {
    display: grid;
    width: 28px;
    height: 28px;
    place-items: center;
    border-radius: 9px;
    background: #1a3150;
    color: #ddebff;
    font-size: 11px;
    font-weight: 900;
}

#policySettingsModal .board-shelf-editor-row input {
    width: 100%;
    min-width: 0;
    min-height: 40px;
    border-color: #365179;
    background: #101c2d;
    color: #f4f7fb;
}

#policySettingsModal .board-shelf-editor-actions {
    display: inline-flex;
    gap: 5px;
}

#policySettingsModal .board-shelf-editor-actions button {
    width: 36px;
    height: 36px;
    display: inline-grid;
    place-items: center;
    padding: 0;
    border: 1px solid #365179;
    border-radius: 10px;
    background: #142239;
    color: #ddebff;
    cursor: pointer;
}

#policySettingsModal .board-shelf-editor-actions button:hover:not(:disabled) {
    border-color: #5686ce;
    background: #1a3150;
}

#policySettingsModal .board-shelf-editor-actions button.is-danger {
    border-color: rgba(248, 113, 113, 0.48);
    color: #fecaca;
}

#policySettingsModal .board-shelf-editor-actions button:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

#policySettingsModal .policy-shelf-add {
    width: 100%;
    min-height: 42px;
    margin-top: 12px;
    border-style: dashed;
}

/* Explicit footer semantics. */
#policySettingsModal #btnCancelPolicySettings {
    border-color: #475569;
    background: #334155;
    color: #f8fafc;
}

#policySettingsModal #btnCancelPolicySettings:hover {
    border-color: #64748b;
    background: #475569;
}

#policySettingsModal #btnSavePolicySettings {
    border-color: #2563eb;
    background: #2563eb;
    color: #ffffff;
}

#policySettingsModal #btnSavePolicySettings:hover {
    border-color: #1d4ed8;
    background: #1d4ed8;
}

#boardSettingsModal #btnCancelBoardSettingsModal {
    border-color: #475569;
    background: #334155;
    color: #f8fafc;
}

#boardSettingsModal #btnCancelBoardSettingsModal:hover {
    border-color: #64748b;
    background: #475569;
}

#boardSettingsModal #btnSaveBoardSettings {
    border-color: #2563eb;
    background: #2563eb;
    color: #ffffff;
}

#boardSettingsModal #btnSaveBoardSettings:hover {
    border-color: #1d4ed8;
    background: #1d4ed8;
}

#policySettingsModal #btnCancelPolicySettings:focus-visible,
#policySettingsModal #btnSavePolicySettings:focus-visible,
#boardSettingsModal #btnCancelBoardSettingsModal:focus-visible,
#boardSettingsModal #btnSaveBoardSettings:focus-visible {
    outline: 3px solid rgba(96, 165, 250, 0.48);
    outline-offset: 2px;
}

#policySettingsModal #btnCancelPolicySettings:disabled,
#boardSettingsModal #btnCancelBoardSettingsModal:disabled {
    border-color: #475569;
    background: #334155;
    color: #f8fafc;
    opacity: 0.56;
    cursor: not-allowed;
}

#policySettingsModal #btnSavePolicySettings:disabled,
#boardSettingsModal #btnSaveBoardSettings:disabled {
    border-color: #2563eb;
    background: #2563eb;
    color: #ffffff;
    opacity: 0.56;
    cursor: not-allowed;
}

/* Presentation state ---------------------------------------------------- */

.board-page .spotlight-presentation-meta {
    position: fixed;
    top: max(20px, env(safe-area-inset-top));
    left: max(20px, env(safe-area-inset-left));
    z-index: 10004;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border: 1px solid #3b5271;
    border-radius: 999px;
    background: rgba(8, 18, 32, 0.94);
    color: #f4f7fb;
    box-shadow: 0 10px 26px rgba(0, 0, 0, 0.24);
}

.board-page .spotlight-presentation-meta[hidden] {
    display: none;
}

.board-page .spotlight-presentation-label {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    color: #b8c7da;
    font-size: 12px;
    font-weight: 800;
}

.board-page .spotlight-presentation-meta strong {
    min-width: 42px;
    font-size: 13px;
    font-variant-numeric: tabular-nums;
    text-align: center;
}

.board-page .spotlight-overlay.is-presentation {
    padding: 0;
    background: #030811;
}

.board-page .spotlight-overlay.is-presentation .spotlight-content {
    width: 100vw;
    max-width: none;
    height: 100dvh;
    max-height: none;
    border: 0;
    border-radius: 0;
    box-shadow: none;
}

.board-page .spotlight-overlay.is-presentation .spotlight-media-shell,
.board-page .spotlight-overlay.is-presentation .spotlight-info {
    padding-top: 76px;
}

.board-page .spotlight-overlay.is-presentation .spotlight-media-shell {
    touch-action: pan-y;
    overscroll-behavior-inline: contain;
}

.board-page .spotlight-overlay.is-presentation .spotlight-close {
    top: max(20px, env(safe-area-inset-top));
    right: max(20px, env(safe-area-inset-right));
}

.board-page .spotlight-overlay.is-presentation .spotlight-nav:disabled,
.board-page .spotlight-overlay.is-presentation .spotlight-side-zone:disabled {
    opacity: 0.24;
    cursor: not-allowed;
    pointer-events: none;
}

body.board-page[data-board-role="student"][data-board-theme="light"] .spotlight-overlay.is-presentation {
    background: #eef2f7;
}

body.board-page[data-board-role="student"][data-board-theme="light"] .spotlight-presentation-meta {
    border-color: #c8d2df;
    background: rgba(255, 255, 255, 0.96);
    color: #162238;
    box-shadow: 0 10px 26px rgba(44, 62, 92, 0.18);
}

body.board-page[data-board-role="student"][data-board-theme="light"] .spotlight-presentation-label {
    color: #657188;
}

/* Inline review evaluation semantics ----------------------------------- */

.board-page .board-record-review-workspace .board-admin-eval-btn[data-board-eval-status="verified"] {
    border-color: rgba(34, 197, 94, 0.58);
    background: rgba(22, 163, 74, 0.16);
    color: #bbf7d0;
}

.board-page .board-record-review-workspace .board-admin-eval-btn[data-board-eval-status="excellent"] {
    border-color: rgba(245, 158, 11, 0.62);
    background: rgba(217, 119, 6, 0.18);
    color: #fde68a;
}

.board-page .board-record-review-workspace .board-admin-eval-btn[data-board-eval-status="none"] {
    border-color: rgba(148, 163, 184, 0.5);
    background: rgba(71, 85, 105, 0.28);
    color: #e2e8f0;
}

.board-page .board-record-review-workspace .board-admin-eval-btn.active[data-board-eval-status="verified"] {
    border-color: #86efac;
    background: #16a34a;
    color: #052e16;
}

.board-page .board-record-review-workspace .board-admin-eval-btn.active[data-board-eval-status="excellent"] {
    border-color: #fde68a;
    background: #f59e0b;
    color: #422006;
}

.board-page .board-record-review-workspace .board-admin-eval-btn.active[data-board-eval-status="none"] {
    border-color: #cbd5e1;
    background: #475569;
    color: #f8fafc;
}

.board-page .board-record-review-workspace .board-admin-eval-btn:disabled[data-board-eval-status="verified"] {
    border-color: rgba(34, 197, 94, 0.42) !important;
    background: rgba(22, 163, 74, 0.22) !important;
    color: #bbf7d0 !important;
}

.board-page .board-record-review-workspace .board-admin-eval-btn:disabled[data-board-eval-status="excellent"] {
    border-color: rgba(245, 158, 11, 0.46) !important;
    background: rgba(217, 119, 6, 0.24) !important;
    color: #fde68a !important;
}

.board-page .board-record-review-workspace .board-admin-eval-btn:disabled[data-board-eval-status="none"] {
    border-color: rgba(148, 163, 184, 0.42) !important;
    background: rgba(71, 85, 105, 0.38) !important;
    color: #e2e8f0 !important;
}

/* Responsive ------------------------------------------------------------ */

@media (max-width: 1200px) {
    .board-page .board-toolbar.board-redesign-post-toolbar {
        grid-template-columns: 1fr;
    }

    .board-page .board-presentation-trigger {
        width: 100%;
    }
}

@media (min-width: 901px) {
    #writeModal #postShelfGroup {
        grid-column: 1;
        grid-row: 2;
    }

    #writeModal .modal-body:has(#postShelfGroup:not([hidden])) #postContentGroup {
        grid-row: 3;
    }
}

@media (max-width: 760px) {
    .board-page .board-shelf-tabs {
        position: sticky;
        top: 8px;
        z-index: 6;
        display: flex;
        gap: 7px;
        overflow-x: auto;
        padding: 6px;
        margin-bottom: 12px;
        border: 1px solid #2b405e;
        border-radius: 14px;
        background: #0a1525;
        scrollbar-width: thin;
    }

    .board-page .board-shelf-tab {
        flex: 0 0 auto;
        min-height: 38px;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        padding: 7px 11px;
        border: 1px solid transparent;
        border-radius: 10px;
        background: transparent;
        color: #93a4bc;
        font: inherit;
        font-size: 12px;
        font-weight: 800;
    }

    .board-page .board-shelf-tab strong {
        min-width: 22px;
        padding: 2px 6px;
        border-radius: 999px;
        background: #142239;
        font-size: 10px;
        text-align: center;
    }

    .board-page .board-shelf-tab.is-active {
        border-color: #365179;
        background: #1a3150;
        color: #ddebff;
    }

    .board-page .board-shelf-lanes {
        display: block;
        overflow: visible;
        padding: 0;
    }

    .board-page .board-shelf-lane {
        display: none;
        width: 100%;
        overflow: visible;
    }

    .board-page .board-shelf-lane.is-active {
        display: block;
    }

    .board-page .board-shelf-add-lane { display: none; }

    .board-page .board-shelf-add-tab {
        flex: 0 0 38px;
        min-height: 38px;
        display: inline-grid;
        place-items: center;
        border: 1px dashed #526a8d;
        border-radius: 10px;
        background: #142239;
        color: #ddebff;
        font-family: inherit;
        font-size: 21px;
        font-weight: 800;
        line-height: 1;
    }

    .board-page .board-shelf-add-tab:disabled { opacity: 0.45; }

    .board-page .board-shelf-lane-header {
        top: 60px;
    }

    body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-tabs {
        border-color: var(--board-mock-line);
        background: rgba(255, 255, 255, 0.96);
    }

    body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-tab {
        color: var(--board-mock-muted);
    }

    body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-tab strong {
        background: #edf2ff;
    }

    body.board-page[data-board-role="student"][data-board-theme="light"] .board-shelf-tab.is-active {
        border-color: #b7c7ed;
        background: #e8eefc;
        color: #244dbb;
    }

    #policySettingsModal .policy-settings-nav {
        grid-template-columns: none;
        grid-auto-flow: column;
        grid-auto-columns: minmax(0, 1fr);
    }

    #policySettingsModal .board-shelf-editor-row {
        grid-template-columns: 28px minmax(0, 1fr);
    }

    #policySettingsModal .board-shelf-editor-actions {
        grid-column: 1 / -1;
        justify-content: flex-end;
    }

    .board-page .spotlight-overlay.is-presentation .spotlight-content {
        height: 100dvh;
        max-height: 100dvh;
        border-radius: 0;
    }

    .board-page .spotlight-overlay.is-presentation .spotlight-media-shell {
        padding-top: 68px;
    }

    .board-page .spotlight-overlay.is-presentation .spotlight-info {
        padding-top: 18px;
    }

    .board-page .spotlight-presentation-meta {
        top: max(14px, env(safe-area-inset-top));
        left: max(14px, env(safe-area-inset-left));
    }

    .board-page .spotlight-overlay.is-presentation .spotlight-close {
        top: max(14px, env(safe-area-inset-top));
        right: max(14px, env(safe-area-inset-right));
    }
}

@media (prefers-reduced-motion: reduce) {
    .board-page .board-presentation-trigger {
        transition: none;
    }
}