.font-size-controls {
    position: fixed;
    bottom: 12px;
    right: 12px;
    z-index: 1000;
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px;
    border: 1px solid var(--line, #bbb);
    border-radius: 12px;
    background: var(--surface, #fff);
    color: var(--text, #17191c);
    box-shadow: 0 5px 20px rgb(0 0 0 / 16%);
    font-family: Arial, sans-serif;
    font-size: 1rem;
    line-height: 1.2;
}

.font-size-controls__label {
    padding: 0 4px;
    font-weight: 700;
}

.font-size-controls button {
    min-width: 44px;
    min-height: 44px;
    padding: 7px 9px;
    border: 1px solid currentColor;
    border-radius: 8px;
    background: transparent;
    color: inherit;
    font: inherit;
    font-weight: 700;
    cursor: pointer;
}

.font-size-controls button:hover {
    background: var(--surface-soft, #eee);
}

.font-size-controls button:focus-visible {
    outline: 3px solid var(--accent, #765a2e);
    outline-offset: 2px;
}

.font-size-controls button:disabled {
    cursor: not-allowed;
    opacity: 0.45;
}

.font-size-controls output {
    min-width: 4ch;
    text-align: center;
    font-variant-numeric: tabular-nums;
}

.font-size-controls__reset {
    min-width: auto !important;
    font-weight: 500 !important;
}

.font-size-controls__theme {
    min-width: auto !important;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.font-size-controls__theme [data-theme-icon] {
    font-size: 1.25em;
    line-height: 1;
}

@media (max-width: 700px) {
    .font-size-controls {
        right: 8px;
        bottom: 8px;
        left: 8px;
        justify-content: center;
    }

    .font-size-controls__label,
    .font-size-controls__reset,
    .font-size-controls__theme [data-theme-label] {
        display: none;
    }
}

@media print {
    .font-size-controls {
        display: none;
    }
}