styles.css

@media only screen and (orientation: landscape) {
    .is-mobile .sr-flashcard {
        flex-direction: row;
    }

    .is-mobile .sr-header {
        flex-direction: column;
        flex: 0 1 0;
    }

    .is-mobile .sr-content {
        flex: 1 0 0;
    }

    .is-mobile .sr-response {
        flex-direction: column;
        flex: 0 1 0;
    }

    .is-mobile .sr-controls {
        flex-direction: column;
    }

    .is-mobile .sr-title {
        display: none;
    }

    .is-mobile .sr-response-button {
        writing-mode: vertical-lr;
    }
}

#sr-modal {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

#sr-modal .modal-title {
    display: none;
}

#sr-modal .modal-close-button {
    z-index: 21;
}

body:not(.native-scrollbars) #sr-modal .modal-close-button {
    top: 12px;
}

.sr-modal-content {
    position: relative;
    overflow: hidden;
}

.sr-is-hidden {
    display: none !important;
}

.sr-centered {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-direction: column;
}

.sr-deck-list,
.sr-flashcard,
.sr-edit-view {
    display: flex;
    flex-direction: column;
    width: 100%;
    height: 100%;
}

.sr-header {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 100%;
    border-bottom: 1px solid var(--hr-color);
}

.sr-title {
    font-size: var(--font-ui-large);
    font-weight: var(--font-semibold);
    text-align: center;
    line-height: var(--line-height-tight);
}

.sr-content {
    overflow-y: auto;
}

.sr-button {
    box-shadow: none !important;
    cursor: pointer;
}

.sr-back-button {
    z-index: 21;
    cursor: var(--cursor);
    position: absolute;
    top: 12px;
    left: 12px;
    font-size: 26px;
    line-height: 22px;
    height: 26px;
    width: 26px;
    padding: 0 var(--size-2-2);
    border-radius: var(--radius-s);
    color: var(--text-muted);
    display: flex;
    justify-content: center;
    align-items: center;
}

.sr-back-button:hover,
.sr-button:hover {
    background-color: var(--background-modifier-hover);
}

.sr-response {
    display: flex;
    width: 100%;
    margin-top: var(--size-4-4);
    gap: var(--size-4-4);
}

.sr-response-button {
    height: 48px;
    flex-grow: 1;
    margin: auto;
    line-height: 48px;
    text-align: center;
    cursor: pointer;
    border-radius: 4px;
    user-select: text;
}

.sr-bg-blue,
.sr-bg-green,
.sr-bg-red {
    color: #ffffff !important;
}

.sr-bg-green {
    background-color: #4caf50 !important;
}

.sr-bg-blue {
    background-color: #2094f3 !important;
}

.sr-bg-red {
    background-color: #ff7043 !important;
}

.sr-deck-list .sr-tree-item-row:hover .sr-bg-green,
.sr-response-button.sr-bg-green:hover {
    background-color: hsl(122, 39%, 44%) !important;
}

.sr-deck-list .sr-tree-item-row:hover .sr-bg-blue,
.sr-response-button.sr-bg-blue:hover {
    background-color: hsl(207, 90%, 49%) !important;
}

.sr-deck-list .sr-tree-item-row:hover .sr-bg-red,
.sr-response-button.sr-bg-red:hover {
    background-color: hsl(14, 100%, 58%) !important;
}

/* -> DeckListView */

.sr-deck-list .sr-header {
    gap: 8px;
    padding-bottom: 14px;
    margin-bottom: 24px;
}

.sr-deck-list .sr-header-stats-container {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.sr-deck-list .sr-header-stats-count {
    display: flex;
    color: #ffffff;
    padding: 4px;
    gap: 4px;
}

.sr-deck-list .sr-header-stats-count > *:first-child {
    min-width: 10ch;
}

.sr-deck-list .sr-header-stats-count > *:last-child {
    min-width: 3ch;
    text-align: right;
}

.sr-deck-list .sr-tree-item-row {
    padding-top: 2px;
    padding-bottom: 2px;
    margin-bottom: 0;
}

.sr-deck-list .sr-tree-stats-container {
    display: flex;
    gap: 4px;
}

.sr-deck-list .sr-tree-stats-count {
    min-width: 3ch;
    padding: 4px;
    box-sizing: content-box;
    text-align: center;
    color: #ffffff !important;
}

/* -> FlashcardReviewView */

.sr-flashcard .sr-header {
    position: relative;
    gap: 8px;
    padding-bottom: 8px;
}

.sr-flashcard .sr-button:disabled {
    cursor: not-allowed;
}

.sr-flashcard .sr-back-button {
    position: absolute;
    left: 0;
    top: 0;
    z-index: 21;
}

.sr-flashcard .sr-controls {
    display: flex;
    gap: var(--size-4-4);
}

.sr-flashcard .sr-context {
    font-style: italic;
    color: var(--text-faint);
    display: block;
    width: 100%;
    margin-top: 12px;
    margin-bottom: 4px;
    margin-left: 8px;
}

.sr-flashcard .sr-content {
    font-size: var(--font-text-size);
    overflow-y: auto;
    user-select: text;
    padding-inline: 8px;
    width: 100%;
    flex-grow: 1;
}

.sr-flashcard .sr-card-divide {
    backdrop-filter: invert(40%);
    border-top-style: dashed;
}

/* -> EditModal */

.sr-edit-modal {
    height: 80%;
}

.sr-edit-view {
    height: 100%;
    width: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: var(--size-4-4);
}

.sr-edit-view .sr-input {
    flex-grow: 1;
    width: 100%;
    resize: none;
}

.sr-edit-view .sr-response {
    display: grid;
    grid-template-columns: auto auto auto;
    width: 100%;
    margin-top: 0;
}

.sr-edit-view .sr-response-button {
    width: 100%;
}

.sr-edit-view .sr-response-button.sr-spacer {
    opacity: 0;
    cursor: default;
}

/*  -> Statistics */

#sr-chart-period {
    appearance: menulist;
    border-right: 8px solid transparent;
}

/*
 * Tab elements
 * This CSS is copied from https://github.com/Taitava/obsidian-shellcommands
 * Jarkko Linnanvirta https://github.com/Taitava comments below...
 *  - Renamed classes
 *
 * This CSS is copied 2021-10-21 from https://www.w3schools.com/howto/howto_js_tabs.asp
 * Modifications:
 *  - Renamed classes
 *  - Added tab icons.
 *  - Changed colors.
 *  - Changed/removed borders.
 *  - Removed button transition.
 *  - Changed button border-radiuses
 *  - Added margin-right rule to .sr-tab-header-button .
 */

/* Style the tab */
.sr-tab-header {
    border-bottom: 6px solid var(--background-modifier-border);
}

/* Style the buttons that are used to open the tab content */
button.sr-tab-header-button {
    background-color: unset;
    border: none;
    box-shadow: none; /* Remove a "border" that came via Obsidian 0.16.0. */
    outline: none;
    cursor: pointer;
    padding: 14px 16px;
    margin-right: 6px; /* Reduced margin. Obsidian's default margin-right for button is 12px (0 for other margins). */
    border-radius: 10px 10px 0 0; /* 0 0 = No border-radius at bottom */
}

/* Create an active/current tablink class */
button.sr-tab-header-button.sr-tab-active,
button.sr-tab-header-button:hover {
    background-color: var(--background-modifier-border);
}

.sr-tab-header-button svg {
    vertical-align: middle; /* Not middle but close enough. */
}

/* Style the tab content */
.sr-tab-content {
    display: none;
    padding: 6px 12px;
}

.sr-tab-content.sr-tab-active {
    display: block;
}