/* Custom on-screen keyboard for terminal */
.osk {
    background: var(--bg-dock);
    border-top: 1px solid var(--border-structural);
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    touch-action: manipulation;
    user-select: none;
    -webkit-user-select: none;
}

.osk.hidden { display: none; }

/* Quick row — frequently used symbols */
.osk-quick {
    display: flex;
    gap: 3px;
    padding: 2px 0;
}

/* Mode tabs */
.osk-modes {
    display: flex;
    gap: 2px;
    margin-bottom: 2px;
}

.osk-mode-tab {
    flex: 1;
    height: 32px;
    background: var(--bg-stage);
    border: 1px solid var(--border-structural);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-family: var(--font-ui);
    font-size: 11px;
    font-weight: 500;
    cursor: pointer;
}

.osk-mode-tab.active {
    background: var(--accent-dim);
    color: var(--accent);
    border-color: var(--accent);
}

/* Keyboard rows */
.osk-row {
    display: flex;
    gap: 3px;
    justify-content: center;
}

/* Keys */
.osk-key {
    min-width: 36px;
    height: 40px;
    padding: 0 6px;
    background: var(--bg-titlebar);
    border: 1px solid var(--border-component);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 13px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--transition-fast);
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
}

.osk-key:active {
    background: var(--accent-dim);
}

/* Modifier keys */
.osk-key.mod {
    background: var(--bg-stage);
    color: var(--text-secondary);
    font-size: 11px;
    font-family: var(--font-ui);
    font-weight: 500;
}

.osk-key.mod.armed {
    background: var(--accent-dim);
    color: var(--accent);
    border-color: var(--accent);
}

.osk-key.mod.locked {
    background: var(--accent);
    color: #fff;
}

/* Special width keys */
.osk-key.wide { flex: 1.5; }
.osk-key.wider { flex: 2; }
.osk-key.space { flex: 5; }

/* Quick row keys — smaller */
.osk-quick .osk-key {
    min-width: 32px;
    height: 32px;
    font-size: 14px;
    flex: 1;
}

/* Fn keys — horizontally scrollable */
.osk-fn-scroll {
    display: flex;
    gap: 3px;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
}

.osk-fn-scroll .osk-key {
    min-width: 44px;
    flex-shrink: 0;
    font-size: 11px;
}

/* Nav grid */
.osk-nav {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 3px;
}

.osk-nav .osk-key {
    min-width: unset;
    font-size: 12px;
}