.fio-ui-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 38px;
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    padding: 9px 14px;
    font-weight: 700;
    line-height: 1.2;
    cursor: pointer;
    text-decoration: none;
    transition: background var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.fio-ui-button:hover {
    text-decoration: none;
}

.fio-ui-button:active {
    transform: translateY(1px);
}

.fio-ui-button--primary {
    background: var(--color-primary);
    color: #fff;
}

.fio-ui-button--primary:hover {
    background: var(--color-primary-hover);
    color: #fff;
}

.fio-ui-button--secondary {
    background: var(--color-surface);
    border-color: var(--color-border);
    color: var(--color-text);
}

.fio-ui-button--secondary:hover {
    background: var(--color-surface-muted);
    color: var(--color-text);
}

.fio-ui-button--danger {
    background: var(--color-danger);
    color: #fff;
}

.fio-ui-button--danger:hover {
    background: color-mix(in srgb, var(--color-danger) 86%, #000);
    color: #fff;
}

.fio-ui-button--ghost {
    background: transparent;
    border-color: var(--color-border);
    color: var(--color-text);
}

.fio-ui-button--ghost:hover {
    background: var(--color-surface-muted);
    color: var(--color-text);
}

.fio-ui-button--link {
    min-height: auto;
    padding: 0;
    border-color: transparent;
    background: transparent;
    color: var(--color-primary);
}

.fio-ui-button--link:hover {
    background: transparent;
    color: var(--color-primary-hover);
}

.fio-ui-button--sm {
    min-height: 32px;
    padding: 6px 10px;
    font-size: 14px;
}

.fio-ui-button--lg {
    min-height: 44px;
    padding: 12px 18px;
    font-size: 17px;
}

.fio-ui-button--block {
    display: flex;
    width: 100%;
}

.fio-ui-button.is-disabled,
.fio-ui-button:disabled {
    cursor: not-allowed;
    opacity: .62;
    pointer-events: none;
}