/* Standalone keyboard keys. Load after course.css; panel/settings remain there. */
.course-keyboard {
    display: grid;
    gap: 7px;
    min-width: 0;
    margin-block: 12px 4px;
    padding: 4px;
    color: var(--ink, #203a38);
}

.course-keyboard .course-keyboard-row {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
    min-width: 0;
}

.course-keyboard [data-virtual-key] {
    box-sizing: border-box;
    display: inline-flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2px;
    flex: 0 1 auto;
    min-width: 44px;
    min-height: 48px;
    max-width: 100%;
    padding: 5px 9px;
    border: 1px solid #c6d8d1;
    border-bottom-width: 3px;
    border-radius: 8px;
    background: #fff;
    color: inherit;
    font: inherit;
    line-height: 1.3;
    text-align: center;
    cursor: pointer;
    touch-action: manipulation;
    user-select: none;
}

.course-keyboard [data-virtual-key] > span {
    font-size: 1.3rem;
    line-height: 1.5;
    white-space: nowrap;
}

.course-keyboard [data-virtual-key] > span[lang="ar"] {
    font-family: var(--arabic, "Noto Naskh Arabic", "Traditional Arabic", serif);
    font-size: 1.55rem;
    line-height: 1.2;
}

.course-keyboard [data-virtual-key] > span:is([lang="ka"], [lang="hy"]) {
    font-family: Sylfaen, "Noto Sans Armenian", "Noto Sans Georgian", serif;
}

.course-keyboard [data-virtual-key] > small {
    color: var(--muted, #637671);
    font: 600 .65rem/1.4 "Segoe UI", system-ui, sans-serif;
    white-space: nowrap;
}

.course-keyboard [data-virtual-key="Space"] {
    flex: 1 1 130px;
    max-width: 240px;
}

.course-keyboard [data-virtual-key="Backspace"],
.course-keyboard [data-virtual-key="Shift"] {
    min-width: 76px;
}

.course-keyboard [data-virtual-key]:is([data-virtual-key="Space"], [data-virtual-key="Backspace"], [data-virtual-key="Shift"]) {
    min-height: 44px;
    font-size: .85rem;
    font-weight: 650;
}

@media (hover: hover) {
    .course-keyboard [data-virtual-key]:hover:not(:disabled) {
        border-color: var(--green, #087f69);
        background: var(--mint, #e5f5ed);
    }
}

.course-keyboard [data-virtual-key]:active:not(:disabled) {
    transform: translateY(1px);
    border-bottom-width: 1px;
}

.course-keyboard [data-virtual-key]:focus-visible {
    outline: 3px solid #a75108;
    outline-offset: 2px;
}

.course-keyboard [data-virtual-key="Shift"][aria-pressed="true"] {
    border-color: var(--green-dark, #076652);
    background: var(--green, #087f69);
    color: #fff;
}

.course-keyboard [data-virtual-key]:disabled {
    opacity: .5;
    cursor: default;
}

@media (max-width: 480px) {
    .course-keyboard { gap: 5px; padding-inline: 0; }
    .course-keyboard .course-keyboard-row { gap: 4px; }
    .course-keyboard [data-virtual-key] { padding-inline: 6px; }
}

@media (forced-colors: active) {
    .course-keyboard [data-virtual-key="Shift"][aria-pressed="true"] {
        outline: 2px solid Highlight;
        outline-offset: -4px;
    }
}